• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A supporting apparatus for a conductor, comprising a helical rod having a plurality of turns. The pitch between the turns varies along the length of the helical rod, from a region of longer pitch at an end of the helical rod to a region of shorter pitch along the rod.
    公开号:ES2538736A2
    申请号:ES201590003
    申请日:2013-07-10
    公开日:2015-06-23
    发明作者:Philip Kenneth Timbrell
    申请人:Preformed Line Products Co；
    IPC主号:
    专利说明:

    DESCRIPTION Driver support device Field of the Invention
    The present invention refers to a support device for conductors and, in particular, but not exclusively, to a helical support device for 5 conductors of electric power transmission, distribution conductors, other similar conductors and cables. Background Description
    It is known to use support devices in the form of helical rods to support and reinforce electric power transmission conductors. Helicals are used to create different types of devices and perform different driver support functions.
    For example, helical retentions are used to support a conductor when an unbalanced mechanical load occurs. Helicals are also used to splice the ends of the conductors. Helical and lateral joints used to attach a conductor to an insulator often consist of a single rod or a pair of helical rods. On the other hand, the separators that are intended to separate the conductors of the same voltage can also be formed by a helical rod, a subset or a set of helical rods. On the other hand, reinforcing rods are used to reinforce a conductor in its connection place (for example, suspended) in relation to an electric pole or tower to avoid high points of stress created in the place where the conductor hangs. Other elements are also used to provide helical support, reinforcement and protection for drivers.
    The parameters associated with the quality of the operation of a helical are diverse. Among them is the coefficient of friction between the rod and the conductor, the helical pitch 25 (for example, when the helical ones have a retentive application), the elasticity or hardness of the material used for the manufacture of the rods, if the rods are glued into subsets or assemblies, or if individually arranged, the pitch angle of the helical turns, the packing density, the dimension of each step, the diameter of the rod, the number of steps and the ratio of compression (the ratio between the internal diameter of the rod before its application and the external diameter of the conductor on which the rod must fit).
    For the purpose of easy manufacturing and simplicity in the design, the above-mentioned parameters are usually taken into account in each of the mechanisms.
    However, some helical devices have variations in some parameters. For example, US 2172810 shows a reinforcing rod with a narrower passage at the ends of the rod than in the center, whose purpose is to provide greater flexibility in
    said extremes.
    US Patent 3899629 discloses a helical mechanism in which the ends of said joint have a greater passage than the rest of the helical joint to thereby allow the helical rod to be more easily positioned in the connector.
     Applicants here argue that a better and more efficient support device 5 can be provided by modifying the parameters involved associated with a helical rod. Description of the invention
    As shown in a first approximation of the present invention, it is a support device for a conductor, formed by a helical rod with several turns 10 arranged to anchor the conductor. The passage between the turns will vary along the axis of the rod, from an area with a major passage at one end of the helical to another area with a minor passage along the helical. On the other hand, the internal diameter of the turns will vary along the helical which will cause that the compression ratio is also modified. Thus, the variable pitch and the diameter of the turns will result in variations in the anchoring force 15 along the helical when applied to the conductor.
    In one embodiment, the pitch of the turns varies along the helical having one end with a zone with a major passage, another zone with a minor passage and a new major passage zone.
    In one embodiment, the helical shows four or more passageways, varying in size from 20 larger to smaller, and again from larger and smaller.
    In one embodiment, the passage of the greater helical is presented at one end, then less, then greater, again lesser, greater, forming a helical with five passage zones.
    In one embodiment, the steps are kept constant in the areas of minor and major passage.
    In one embodiment, the transition zones are located between the minor and the major pass zones, and the dimension of said transition zone is half that of a passage; In addition, the transition zone passage varies from one step of a minor zone to one step of a major zone.
    In one embodiment, an intermediate zone of the device has a greater passage and the change in the steps towards both ends from the intermediate zone is usually always symmetrical with said intermediate zone. 30
    In one embodiment, a variation in the compression ratio is shown depending on the dimension of the step.
    In one embodiment, a higher compression ratio is provided in the smaller passage zone than in the greater pass zone.
    In one embodiment, the compression ratio varies between 0.77 and 1.00.
    In one embodiment, the helical diameter varies along said helical.
    In one embodiment, the device has a helical retainer, a reinforcing rod, a conductor splice, a spacer, and an upper splice or lateral splice.
    In a second approach, the present invention presents a support device for a conductor, comprising a helical rod with several turns, the passage between which gradually varies along said rod, of a major passage at one of the ends to a smaller one along the axis of it.
    It is an advantage for at least one of the embodiments of the present invention that the greater passage at the end of the rod allows to leverage to facilitate its placement. The smaller step 10 along the rod allows greater anchorage and protection to the driver where necessary. This is also another positive point since less material is needed to provide the same clamping force as an equivalent conventional rod where the passage is uniform between the turns. The progressive increase in the dimension of the passage towards the ends of the rod reduces the chances of stress at certain points along the conductor where the rod is placed.
    In one embodiment, the passage in the helical rod varies along its axis from an end in which the passage is greater, to an area where it is smaller, and again to an area where it is greater. This embodiment thus shows at least three passage zones (major, minor, major).
    In one embodiment, the support device shows four or more passageways varying its size from largest to smallest, and again larger and smaller. In one embodiment, it has a major step at one end, then a minor, then a major, again minor and major (five zones).
    The step is modified gradually along the axis of the helical. Said gradual variation of the step shows the advantage of reducing the chances of stress on the driver during changes in the step. The applicants argue that, if the change in step occurs rapidly, there will be a greater possibility of stress on the driver where the helical is located. In the embodiments, one zone of the helical can have a constant pitch, which can gradually change to another constant pitch zone (different from the first zone) and, thus, successively. In other embodiments, the pitch may vary constantly along the axis of the rod. 30
    In one embodiment, the internal diameter of the helical is modified along the axis, so that the compression ratio also varies. In one embodiment, the internal diameter is larger where the passage is smaller and, in turn, is smaller where the passage is greater. In this embodiment, the compression ratio is, therefore, greater where the pitch is smaller and smaller where it is greater. In one embodiment, the compression ratio is between 0.70 and 1.00, and preferably between 0.77 and 0.98.
    It is also advantageous for at least one embodiment of the present application that the step and / or
    The compression ratio is modified to exert force and protection to a driver where necessary.
    In the embodiment in which there is a gradual change in the pitch and / or in the compression ratio, it is an advantage that avoids improper mechanical stress on the driver.
    In one embodiment, the support device has a helical retainer, a reinforcing rod, a conductor splice, a spacer, and an upper splice or lateral splice.
    In a third approach, the present invention shows a support device with a conductor, which contains a helical with several turns, the passage between which varies along the axis of the rod, to form four or more different passageways.
    In one embodiment, there are five zones with different steps. In one embodiment, the five zones 10 of different passage comprise, from one end of the device, a larger passage area, then a smaller passage area, followed by a larger passage zone, a smaller passage zone, and another major. In one embodiment, the support device is formed by a conductor joint to thus support a joint thereof.
    In one embodiment, the support device contains a helical retainer, a reinforcing rod, an upper splice or lateral splice and a spacer.
    According to a fourth approach, the present invention shows a support device for a conductor, which has a helical with several turns, the passage between which it will be modified along the axis of the device.
    In embodiments, the steps between the turns vary gradually. Said gradual variation of the steps presents the advantage of reducing the chances of stress in the driver with the variation of the step. A constant step zone can progressively change to another constant step zone (different from the first) and so on. In other embodiments, the step may vary continuously and gradually throughout the device.
    In one embodiment, the passage in the central zone is greater than that in the parts adjacent thereto. In one embodiment, the passage at the ends is greater than that in the adjacent parts.
    In one embodiment, the compression ratio of the device is also continuously modified throughout the device.
    In one embodiment, the device is formed by a splice, a helical retainer, a lateral splice, an upper splice, a spacer and a reinforcing rod. 30
    In relation to a fifth approach, the present invention shows a support device for a conductor, which includes a helical in which two or more of the following parameters vary in relation to the dimension of the device:
    - The elasticity or hardness of the material with which the helical is manufactured.
    - The angle of passage. 35
    - The packing density of the different helicals.
    - The dimension of the step.
    - The compression ratio.
    In one embodiment, both the pitch and the compression ratio vary along the axis of the helical. 5
    Applicants have also found that, like the above-mentioned embodiments of the invention, it is also possible to improve the operation of a driver support device, such as a helical, including a second device together with the support device. In one embodiment, this second device may be a wedge to provide said shim function. In one embodiment, this second device may function as another support device.
    For example, in a helical retention device, a second helical can be placed under the part of the helical retention where it is reversed forming an arc. This second helical provides, in this way, an extra thickness to the conductor in the place where the retention connects with the arc. The retention is screwed on the second helical and, in its operation, will be closed on said helical. Thus, at this point a greater grip is provided to the driver and the retention is prevented from slipping. In this way, less material will be used for the production of the helical retention device.
    A wedge device like the one described can also be applied to any of the elements: helical retention, lateral splice, upper splice, splice or separator. twenty
    Said wedge can be used in embodiments of any of the aforementioned embodiments relating to the present invention.
    In another embodiment, the wedge device can be operated with a conventional helical support device.
    According to a sixth approach of the present invention, it is a driver support device, which is formed by a helical and a second device arranged to mechanically interfere with the helical and thus improve the operation of the support device.
    In one embodiment, the second device acts as a wedge. In one embodiment, the second device represents a second helical that can be screwed into the conductor below the first helical.

    In a seventh approach, the present invention provides a method for designing a driver support device, formed by a helical that supports the driver, together with a wedge device. 35
    In one embodiment, a second helical rod acts as a wedge.

    In one embodiment, the method includes the steps to screw the second helical rod into the
    conductor by placing the helical rod on at least a part of the second helical rod.
    In accordance with an eighth approach, the present invention provides a method for manufacturing a helical support device for a conductor, in which the steps for modifying one or more of the parameters in the production of the helical are provided:
    - The elasticity or hardness of the helical manufacturing material.
    - The angle of the lap.
    - The packing density of several of the helicals.
    - The dimension of the step.
    - The compression ratio. 10
    In another embodiment, this step is carried out using a spring machine. In one embodiment, said spring machine is digitally controlled.
    In one embodiment, this step can be performed by means of a rotating mandrel with a variable feed rate.
    As regards a ninth approach, the present invention shows a manufacturing method 15 of a helical support device for a conductor, in which the dimension of the material in the helical has zones with variable pitch through the use of a controlled spring machine digitally
    According to a tenth approach, the present invention shows an assembly between the support device and the transmission line driver, in which the characteristics of the support device would be in accordance with the above described, and would be applied to support The driver of the transmission line. Brief description of the drawings
    Thanks to the description of the embodiments presented below, the characteristics and advantages of the present invention will be shown, by way of examples, with reference to the accompanying drawings, in which:
    - Figures 1 to 5 are illustrations of various embodiments of helical support devices according to the present invention.
    - Figure 6 is an illustration of a helical splice device according to an embodiment of the present invention, shown in operation. 30
    - Figure 7 is a working illustration of a helical joint according to another embodiment of the present invention.
    - Figure 8 is a working illustration of a helical retainer according to an embodiment of the present invention.
    - Figure 9 is an illustration of another embodiment of the present invention formed by a helical retainer and a wedge device.
    - And Figure 10 is an illustration of the dimensions of a helical. Detailed description of the embodiments of the invention
    The compression ratio is the ratio between the internal diameter d of the helical and the external diameter 5 of the cable held by the helical. Because the internal diameter of the helical is reduced to a constant external diameter in the conductor, the compression ratio is also reduced by a tighter anchor
    The parameters of the passage and the diameter of a helical are illustrated in Figure 10. The passage represents the space between the central axis of the helical for a simple complete turn 10 of the helical and whose space is represented by a P. The diameter internal helical is indicated by a d. The anchoring force exerted by the helical on the conductor depends on the dimension of the passage: the smaller the step, the greater the grip on the conductor.
    In the following embodiments, the parameters, in particular the step (and in some embodiments 15 also the compression ratio), are modified at the time of exerting force or protection where it is necessary in particular applications. A minor step keeps the driver tighter and exerts the mechanical work required for a support device of this type with less material than if a larger step was used (so that less force would be exerted on the driver). However, the narrower the passage, the more difficult it will be to place the helical 20 in a conductor. In addition, the level of sharpening changes depending on whether the driver is subject more or less tightly, since if it is not tight enough, an increase in the stress zone can occur causing a driver failure. In some embodiments, the step (and / or compression ratio) is gradually modified from least to greatest (and vice versa) to reduce potential stress zones that may appear in the driver.
    In this way, the amount of material used in a helical can be reduced by using narrower steps, although stress and the possibility of failure can be avoided by gradually modifying that step. A major step also facilitates the operation of the helical support device with the driver. The compression ratio can also be modified along with the step. In turn, the helical can be designed so that the pitch is not modified, but the compression ratio will only vary by modifying the internal diameter of the helical.
    In some embodiments, the passage and / or compression ratio may undergo some modification several times along the axis of the helical rod to exert force or protection where necessary and, in turn, facilitate the placement of the dipstick. The step and / or compression ratio change little by little so that the change in mechanical load occurs gradually and areas of stress are avoided.
    In other embodiments, the pitch and / or compression ratio can be modified along the axis of the rod so as to establish a relatively constant pitch zone and / or compression ratio; then, to carry out a gradual change in another area of relatively constant pitch and / or compression ratio (different from the first step and / or compression ratio); then, another gradual change in another area and so on. In other embodiments, the change in the pitch and / or compression ratio may constitute a constant gradual change along the rod.
    In other embodiments, the key parameters that influence the operation of a support device in the form of a helical rod are modified, especially the pitch and compression ratio. The change does not occur at once, but they are modified to optimize the use of material 10 depending on the position in which they are placed on the rod. This can reduce the use of material and also minimize the possibility of stress on the driver when it comes into operation, while also facilitating its installation. In some embodiments, the change in passage between zones with relatively constant steps occurs in the middle of the step dimension. In other embodiments, this change takes place over 15 the dimension of some steps in less than half of the dimension.
    Throughout this document, the word "conductor" has been used to refer to the support material. The conductor may or may not be insulating.
    A support device according to an embodiment of the present invention is shown in Figure 1. The support device comprises a helical rod 1 which, in operation, can support an electric transmission line conductor. The helical rod 1 contains a relatively smaller passage zone 2, which gradually changes to a relatively larger passage zone 3. This transition occurs in gradual steps.
    In the present embodiment, the internal diameter d is also modified along the axis of the helical 1. The diameter d is larger in the zone 2 of minor and minimum passage in the zone 3 of step 25 greater. A smaller internal diameter results in a helical fastened tightly to the conductor. It also results in a lower compression ratio, which means less tightness over the driver.
    In this embodiment, the minor passage has a compression ratio of less than one (even when d is at its maximum it is still smaller than the diameter of the conductor on which the helical is located), which results in a firmer grip on the conductor in zone 2 than in zone 3. Zone 3, however, still provides a relatively firm hold due to the small diameter, but is designed not to provide such a strong grip on the conductor as in zone 2.
    This helical can be used in applications where the driver needs to be protected 35 and held firmly in one area but not in another (zone 3). Because the pitch and compression ratio change gradually, there is a reduction in the possibility of stress from the anchored driver. In addition, zone 3 can be used as a lever to place the helical in the conductor, starting at end A, first placing the spiral of the minor passage in the conductor and ending at end B. 40
    Figure 2 shows another embodiment. In this embodiment, as in the embodiment of Figure 1, there appears a minor passage zone 2 and a helical passage major zone 3, and the change of space from A to B (from left to right in the Figure) to along the axis of the helical 5. In this embodiment, however, the internal diameter d of the helical 5 increases from zone 2 to zone 3. Thus, zone 2 will provide much greater compression on the conductor and will hold the 5 driver with greater narrowness compared to zone 3 (specifically, zone 2 towards end A will be very narrow).
    Figure 3 illustrates a support device 6, comprising three helical rods of the embodiment of Figure 1 housed forming an assembly. It is common to use helical rod assemblies to constitute support devices. In this embodiment, the use of a set increases protection and support to the driver to which it is applied. In addition, due to the variation of the parameters of the helical 1 along the axis, there is a significant reduction in the material used (with this embodiment only 60% of the material used in a conventional rod whose parameters do not vary) is used. For its part, for a technician it is easier to handle thanks to the advantage of the greater passage zone 3. All this means a significant saving of material and a device that provides protection and support at least equal, if not greater, than a conventional device in which there have been no modifications to the parameters.
    Figure 4 illustrates a support device in the form of a helical retainer, shown separately from the conductor. Figure 8 shows retention 7 in conductor 20. 20
    A retention is used to withstand an unbalanced mechanical load. The arch 8 of the retention is normally fixed to a mechanical support (such as an electric pole) to support the weight of a conductor. The helical part 9 of the retainer is screwed to the conductor in order to anchor and support it.
    In this embodiment, the retainer 7 includes a helical assembly similar to that of embodiment 25 of Figures 1 and 3, attached to the narrower passage end A of each helical by means of an arc 8, acting as part of the material of the helical. As shown in Figure 8, the arc 8 may be formed by the ends of the helical rods coiled together.
    In this embodiment, the dimension of the passage is controlled to be as small as possible near the passage point C (where the helical begins to form the arc), and as large as possible at the end D of the mechanism beyond the arc 8. Thus, the conductor 20 is held and protected more closely towards the end C, closer to the arc, and less towards the end D. This allows the retainer 8 to fit easily by taking advantage of the lever of a larger passage end in the helical assembly, while still providing optimal protection and strength. In addition, the amount of material used is reduced in comparison to a conventional helical retention, due to a larger pitch dimension in areas where such a strong anchorage is not so important, while improving the operating qualities.
    In this embodiment, the compression ratio changes from A to B (Figure 4) to reduce (usually from 0.9 to 0.77) so that the driver remains relatively subject 40
    towards end B (D in Figure 8). In other embodiments, the compression ratio could be lower at the C-end and increase (for example, it may change from 0.77 to 0.9) towards D. In other embodiments, this compression ratio does not need to suffer any kind of modification.
    The step and compression ratio do not change suddenly, but the change occurs gradually to improve the properties and minimize the possibility of stress. 5
    Figures 5 and 7 show an embodiment of the present invention in which a reinforcing rod should be used. This type of reinforcement rods are used to protect and support electrical transmission conductors in areas where they are suspended or supported by an electrical tower or pole. If a heavy conductor were suspended directly from the post without any protection, it would tend to "squirm" and stress would appear at the point of suspension, which would result in a driver failure. Reinforcement rods are used to support the driver in this area and disperse stress on the driver, while protecting him. As mentioned in the upper lines, conventional reinforcement rods have equivalent compression ratios and ratios along its axis.
    Figure 5 shows a helical rod 30 that can be used in an application of a reinforcing rod.
    In this embodiment, the pitch and compression ratio of the helical rods vary along the axis of the rod. From end A to B (from left to right in the Figure), the pitch and diameter (which affects the compression ratio) also vary. In A, the step begins to be relatively greater and changes to be relatively smaller, becoming again 20 again towards B. Similarly, the diameter begins to be smaller, increases and becomes smaller again towards B.
    It can be considered that there are three zones 1, 2 and 3. Zone 1 is an area of smaller diameter and greater passage, zone 2 has a smaller passage and greater diameter, and zone 3 has a larger diameter and passage. The characteristics of zone 2 include the possibility of holding the conductor harder. This must be taken into account in the center of the reinforcing rod in which the conductor is suspended. This property is gradually modified towards zones 1 and 3, in which the driver can be held slightly softer. A technician would be able to install a reinforcing rod from the center outwards, using the lever provided by the major passage areas. In this case, less material would be used in this application than in one with a conventional reinforcing rod. This gradual variation of the characteristics reduces the stress points in the driver.
    As for Figure 7, a helical assembly 30 appears forming a reinforcing rod 31 next to the conductor 21. In this embodiment, there are three rods in the assembly, although the number may vary. 35
    In another embodiment of a reinforcing rod (not shown) five zones can be found. The zones will vary from a relatively long, short, long, again short and once longer step. In this embodiment, the central major zone will fit in the form of the suspended mechanism. The compression ratio may vary.
    Another application of an embodiment of the present invention is illustrated in Figure 6. It shows a connection on the conductor 22. Said conductor 22 is represented in the form of two conductors 22a and 22b, which are joined together supporting their ends on the 23 (in the center of the drawing).
    Conductor splices are normally used to join electrical transmissions and 5 distribution conductors. A helical assembly is usually used to form a joint that supports and maintains the conductor's joint. Conventional splicing helicals have constant steps and compression ratios.
    In this embodiment, the helicals 36 vary in at least the dimension of the passage from left to right (A to B) along the helical, to form five zones mainly. Zone 1 10 constitutes a relatively long step, zone 2 shorter, 3 longer, four shorter and 5 again longer.
    Therefore, there are several areas of passage forming the junction. Applicants have proven that, if there is a narrow part (for example, a minor step) where the conductive joint occurs, this can cause the joint to be forced. Therefore, a relatively long passage 15 is found in zone 3 and a minor passage 2 and 4 on both sides of this zone in order to keep the joint 23 linked. Once again, it is advantageous in this embodiment that it is allowed to exert force on the driver where it is needed and is more appropriate, and in turn the driver is protected, the operation of the splice is maintained, an easier installation is allowed and material is saved, compared to conventional joints. twenty
    Of the five zones of the helical, there are some with relatively long passages at the ends and in the center, separated by relatively smaller passages, as illustrated in Figure 6, which makes it advantageous since it is feasible its use as a joint (as shown in Figure 6) and as retention.
    When used as a retention, the central area of the helical, with a relatively greater pitch, is placed in the arc of said retention (for example, 8 in Figure 8). The areas with the narrowest passage are anchored to the driver with greater firmness at the end of the arch, and the areas with greater passage further away from the arch provide support to the driver but with less firmness in the support.
    The five-zone helical is very useful for use as both retention and splicing, since it is firmly anchored when necessary and provides support if required. There is also an efficient use of the material thanks to the larger passageways. In some embodiments, the zones between the long and the short passage areas are usually around the half-step dimension. In other embodiments, the dimension of the zones may be different at half step. 35
    The embodiments of the present invention may include an indefinite number of zones in order to apply the appropriate support and protection to each of the applications. In the spliced application of Figure 6 there are five areas shown, but the number may vary.

    In other embodiments, a larger number of devices are used to improve the function of the support device, such as a helical. In one embodiment, those additional devices can function as a wedge. In one embodiment, the wedge device (another device) may actually be another helical. An example can be seen described in Figure 9. Figure 9 shows a helical retention as shown in the previous embodiment of the present invention. The passage of the retention helicals increases from the end of the arc 51 to the end B (the end of the arc 51 is the A of the retention device 50).

    To improve the anchorage to the end of the arc A, a short helical 55 (final splice) is screwed around the conductor 56 before its application to the retainer 50. The retainer 50 is then applied on a part of the splice 55 (in zone A). When the retention is started and the arc 51 supports said retention 50 and the conductor 56, the propeller of the retention 50 tends to narrow around the junction 55. The force on the conductor 56 in the zone A is therefore greater That would be without the joint. Thus, the operation of the retention 50 is facilitated. This may cause even less material to be used in the retention 50 than in the embodiments described above, and provide equal or even better operation.

    Another device, such as wedge, can be used with conventional helicals and not only with helicals such as those described in the preceding embodiments of the present invention.
     twenty
    Other types of wedge devices can be used in any type of application without being limited solely to retention. They could be used with conventional or helical helicals as described above.

    The type of helicals described in previous embodiments of the present invention can be manufactured in various ways.

    Applicants have implemented a particularly useful way of manufacturing the helicals according to the present invention by using a digitally controlled spring machine. With the use of these machines so appropriate, the helicals can be produced taking into account that all parameters can be modified simultaneously to optimize the design. In particular, the steps and / or compression ratios may be using said machines here.

    The use of this type of spring machines to carry out these mechanisms will allow gradual and asymmetric changes to be made on the angles of passage, the dimension of the passage and the compression ratio. Otherwise, a rotating mandrel with a variable feed rate can be used.

    Another different method of production would try, first of all, to screw a helical perfectly, then unscrew it and push and pull according to the unscrewing speed, and thus vary the pitch. Example

    The reinforcing rod is designed so that, in the center of the joint, there are several very narrow passages (around 40 mm that change little by little). Towards the ends, the step gradually increases to 100 mm. It is clear that these numbers 5 are only an example and that the invention is not limited to these dimensions. Simultaneously, the compression ratio is reduced from 90% in the center to between 77 and 80% at the end of the helical. Otherwise, depending on the specific requirements of the design, the compression ratio could rise from 77 to 80% in the center of the helical to 90% at the end of it. In the case of a joint joining two conductors of different diameter, both the 10 step and the compression ratio will gradually alternate between a narrow passage and a low compression ratio, and a long step and a high compression ratio, then return to a narrower one, but not necessarily identical to the previous one, and a smaller compression, but not necessarily identical to the compression ratio of the other end.
     fifteen
    The use of narrow passages can reduce or eliminate the need for abrasive particles. This may mean that the cost of abrasive is minimized when appropriate, and only apply it in greater quantity when the passage is greater.

    The embodiments of the present invention do not limit its use to transmission conductors and 20 cables, but they do use any type of these.

    In the preceding embodiments, the pitch and compression ratio generally vary. It will be possible to verify that, in some of the embodiments, it is only the step that varies; in others, only the compression ratio. In addition, in other embodiments, it is other of the 25 parameters mentioned above that vary, either individually or together.

    Those skilled in the art will assess that the various variations and / or modifications carried out in the present invention, as it has been found in the preceding embodiments, do not imply a departure from the essence or scope of the invention, as has been 30 described extensively in upper lines. That is why all these embodiments must be taken into account in an illustrative and non-limiting manner.

    It will also be easy for experts to understand that the described helicals have been designed to withstand any type of conductor. Although the preceding embodiments are about electrical conductors, they would be equally feasible for optical conductors, for example, optical fibers, or any other type of conductor. The above-mentioned examples do not imply a limit on the scope of the invention.
    权利要求:
    Claims (26)
    [1]

    1. A driver support device, which contains a helical formed by several turns arranged to anchor to the conductor; a passage between them that varies along the axis of the helical, from an area with a major passage at one end, to another area with a minor step 5 along the axis; and an internal diameter of the turns that also varies along the helical by means of which it is possible to modify the compression ratio, vary the pitch and the diameter of the turns, thereby obtaining different results in the anchoring force along the helical when applied to the driver.
     10
    [2]
    2. A support device according to claim 1, wherein the passage of the turns varies along the axis of the helical, from one end with a major passage zone, to another minor passage zone, and then to another overpass area again.

    [3]
    3. A device according to claim 1, wherein the helical has four or more 15 passageways, which varies alternately from major to minor.

    [4]
    4. A device according to claims 1 to 3, wherein the passage between the turns is greater at one end, less at the other and so on forming five passage zones.
     twenty
    [5]
    5. A device according to any of the preceding claims, wherein the zones of minor and major passages are constant.

    [6]
    6. A device according to any of the preceding claims, wherein the transition zones are located between the minor passage zones and the major passage zones, and the dimension of said transition zone would correspond to the medium dimension. step, and the steps in the transition zone vary from one step in the shortest zone to one step in the longest zone.

    [7]
    7. A device according to any of the preceding claims, wherein the intermediate zone of the device has a major passage, and the changes that occur therein towards the two ends from the center are usually symmetrical with the intermediate zone.

    [8]
    8. A device according to any of the preceding claims, wherein the compression ratio varies according to the step dimension. 35

    [9]
    9. A device according to claim 8, wherein the compression ratio in a minor passage zone is greater than in the greater passage zone.

    [10]
    10. A device according to claim 8, wherein the compression ratio in a larger passage zone is greater than in the minor passage zone.

    [11]
    11. A device according to any of claims 8 to 10, wherein the compression ratio varies between 0.77 and 1.00.
    [12]
    12. A device according to any of the preceding claims, formed by a helical retainer, a reinforcing rod, a conductor splice, a spacer, and a lateral splice or an upper splice.

    [13]
    13. A driver support device, which contains a helical with multiple turns, the passage between which varies along the axis of the helical, to form four or more different passage zones.

    [14]
    14. A device according to claim 13, which has five different passageways.
     10
    [15]
    15. A driver support device, consisting of a helical in which two or more of the following parameters undergo modifications:
    - The elasticity or hardness of the helical manufacturing material.
    - The angle of passage.
    - The packing density of several of the helicals. fifteen
    - The dimension of the step.
    - The compression ratio.
    [16]
    16. A method of producing a helical support device for a conductor, in which two or more of the following parameters will be altered in the manufacture of the helical:
    - The elasticity or hardness of the helical manufacturing material. twenty
    - The angle of the lap.
    - The packing density of several of the helicals.
    - The dimension of the step.
    - The diameter of the helical.
    - The compression ratio. 25
    [17]
    17. A method of producing a helical support device for a conductor, which includes the steps for the use of the helical manufacturing material with variable pitch areas, by using a digital control spring machine .
    [18]
    18. A reinforcing rod, which contains four or more variable steps.
    [19]
    19. A reinforcing rod according to claim 18, which has five zones of variable pitch, one of those steps being larger at one end, the next smaller step, and thus alternating successively until the five are completed.
    [20]
    20. A reinforcing rod according to claims 18 and 19, wherein the transition zones are located between the minor passage zones and the major passage zones, and the dimension of said transition zone corresponds to the dimension of half a step, and the steps in the transition zone vary from one step in the shortest zone to one step in the longest zone.

    [21]
    21. A splicing device to support conductive joint, which contains a helical with several variable pitch zones along its axis.
     40

    [22]
    22. A joint according to claim 21, wherein five passage zones are arranged, from left to right along the axis of the helical, starting with a relatively long passage zone, a relatively short one, again a long (in use, located on the conductive joint), then another short area and then another long one.
     5
    [23]
    23. A support device for a conductor according to claims 1 to 15, which has a helical with several turns, the passage between which varies along the axis, of a greater passage zone at one end of the helical to a minor passage area along the axis.

    [24]
    24. A device according to claim 23, wherein the gradual variation between a major passage zone and a minor passage zone takes place over at least half a turn of the helical.

    [25]
    25. A device according to any one of claims 1 to 15, wherein the helical is a helical rod. fifteen

    [26]
    26. An assembly of a transmission line conductor, which has a support device according to any one of claims 1 to 15 or 18 to 25.
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    同族专利:
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    BR112015000552A2|2018-05-22|
    CN104737402A|2015-06-24|
    US20150122538A1|2015-05-07|
    ES2538736B1|2016-04-13|
    ES2538736R1|2015-08-06|
    US9954350B2|2018-04-24|
    IN2015KN00200A|2015-06-12|
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    MX2015000475A|2015-09-25|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2172810A|1937-01-13|1939-09-12|Delmar C Sherman|Reinforcement for transmission lines and the like|
    US2744707A|1952-05-03|1956-05-08|Thomas F Peterson|Helically-preformed lashing for connecting cables to messenger strands|
    US3183658A|1962-11-20|1965-05-18|John D Drinko|Preformed helical appliance for linear bodies|
    US3899629A|1974-05-22|1975-08-12|Aluminum Co Of America|Preshaped wire rod and spacer having increased leverage and gripping force|
    US4620059A|1985-12-03|1986-10-28|Preformed Line Products Company|Cable vibration dampener and method of installing|
    US6372984B1|1999-10-21|2002-04-16|Tyco Electronics Logistics Ag|Conductor galloping control device and method of installation|
    CN2850084Y|2005-10-12|2006-12-20|北京帕尔普线路器材有限公司|Strain clamp for high-temp wire|
    CN201011701Y|2007-02-28|2008-01-23|北京帕尔普线路器材有限公司|Pre-twisted double strain clamp used for steel core aluminum strand wire|
    CN101697408A|2009-10-20|2010-04-21|江东金具设备有限公司|Full preformed amour rod spacer and preparation method thereof|US10662625B2|2014-12-12|2020-05-26|Delta Faucet Company|Sprayer hose assembly|
    US10790654B2|2018-10-09|2020-09-29|Preformed Line Products Co.|Support structure for supporting a wire|
    法律状态:
    2015-05-22| PC2A| Transfer of patent|Owner name: PREFORMED LINE PRODUCTS COMPANY Effective date: 20150518 |
    2016-04-13| FG2A| Definitive protection|Ref document number: 2538736 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160413 |
    优先权:
    申请号 | 申请日 | 专利标题
    AU2012902989|2012-07-12|
    AU2012902989A|AU2012902989A0|2012-07-12|Supporting apparatus for cables|
    PCT/AU2013/000756|WO2014008539A1|2012-07-12|2013-07-10|Supporting apparatus for conductors|
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