Adjustable traction device for high-voltage cable

Abstract

The utility model belongs to the technical field of high-voltage cables, and provides an adjustable traction device for a high-voltage cable, which comprises a fixing sleeve, a plurality of clamping jaws, a plurality of clamping blocks, a plurality of clamping blocks and a plurality of clamping blocks, and is characterized in that the clamping jaws are annularly and equidistantly distributed and are used for clamping cable ends; one end of the adjusting mechanism is arranged outside the fixing sleeve, the other end of the adjusting mechanism extends into the fixing sleeve and is movably connected with the clamping jaws, and the adjusting mechanism is used for driving the multiple clamping jaws to be synchronously close to or away from the axis of the fixing sleeve. Compared with the prior art, the cable traction device has the advantages that the outer side of a cable is clamped by the clamping claws, so that the traction contact area is increased, wedge angle forming, binding and other operations of the end of the cable are avoided, the slipping phenomenon during traction is prevented, the traction pulling force is improved, and meanwhile, the cable traction device can adapt to traction operations of high-voltage cables of different specifications; the phenomenon that the cable is broken due to uneven local stress of the cable is avoided, potential safety hazards are reduced, and the product quality and the safety of staff during operation are protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage cables, and in particular relates to an adjustable traction device for high-voltage cables. Background Art

[0002] As an energy transmission device, high-voltage cable has the characteristics of long length and large specifications. It often needs to be reeled during the production process. Before each production process, the cable end needs to be pulled from the reel to the equipment to realize the production processes such as wrapping, argon arc welding, and extrusion.

[0003] The current method is to create a wedge at the end of the cable, tie a steel wire rope to the wedge to increase the traction force of the steel wire rope, and then pass the steel wire rope through a traction machine and a take-up reel. The traction machine and the rotation of the reel at the take-up position are used to pull the high-voltage cable to the processing equipment to complete the production processes such as wrapping, argon arc welding, and extrusion. However, the current traction method has certain safety risks. The tying method and quality of the traction rope at the end affect the traction force, making the traction rope prone to slippage or even breakage, which in turn affects the quality of the product and the safety of personnel. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to propose an adjustable traction device for high-voltage cables with a simple overall structure, which avoids operations such as wedge angle opening at the cable ends, is adaptable to high-voltage cables of different specifications, and has guaranteed product quality and safety.

[0005] The utility model solves the technical problem by adopting a technical solution of providing an adjustable traction device for high-voltage cables, which is used to pull the cable on the pay-off frame into the take-up frame via a traction machine, comprising: a fixed sleeve, the interior of which is provided with a plurality of claws distributed in an annular shape and at equal intervals, the claws being used to clamp the cable end;

[0006] an adjusting mechanism, one end of which is disposed outside the fixing sleeve and the other end of which extends into the fixing sleeve and is movably connected to the claws, the adjusting mechanism being used to drive the plurality of claws to synchronously approach or move away from the axis of the fixing sleeve;

[0007] A traction rope, one end of which is detachably connected to the adjustment mechanism and the other end of which is movably connected to the take-up frame, for guiding the cable into the take-up frame;

[0008] When the cable end in the pay-off frame is clamped by the clamping claw, the traction machine is used to drive the cable end toward the take-up frame, so that the traction rope can be connected to the take-up frame and guide the cable end into the take-up frame.

[0009] In the above-mentioned adjustable traction device for high-voltage cables, the adjustment mechanism includes:

[0010] A spiral member is rotatably disposed in the fixed sleeve, and a movable end of the spiral member is connected to the claw, so that when the spiral member rotates, it can drive the claw to move closer to or away from the axis of the fixed sleeve;

[0011] The fixing frame is L-shaped, one end of the fixing frame is connected to the fixing sleeve, and the other end extends out of the fixing sleeve. A chuck is provided on the fixing frame, and the chuck is used to guide the claw to move along the radial direction of the fixing sleeve.

[0012] In the above-mentioned adjustable traction device for high-voltage cables, the opening and closing range of the clamping claws is 70 mm-180 mm.

[0013] In the above-mentioned adjustable traction device for high-voltage cables, the spiral member includes a spiral disk and a connecting cap, a spiral groove is formed in the spiral disk, a locking block is formed on the claw, and the locking block is movably engaged with the spiral groove; the connecting cap is detachably connected to the end of the spiral disk away from the claw, and is used to drive the spiral disk to rotate so as to adjust the opening and closing range of the claw.

[0014] In the above-mentioned adjustable traction device for high-voltage cables, a fixed base is further provided on the fixing frame, and the traction rope is detachably connected to the fixed base.

[0015] In the above-mentioned adjustable traction device for high-voltage cables, a guide groove is formed on the chuck and the fixing frame. The guide groove is arranged parallel to the radial direction of the fixing sleeve, and the clamping claw is movably engaged in the guide groove.

[0016] In the above-mentioned adjustable traction device for high-voltage cables, connecting holes are formed between the fixing frame and the fixing sleeve, and between the spiral disk and the connecting cap. The connecting holes allow fixing members to pass through and connect with each other.

[0017] In the above-mentioned adjustable traction device for high-voltage cables, it also includes a bracket arranged between the take-up frame and the pay-off frame, and the bracket is used to receive the cable.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The utility model is an adjustable traction device for high-voltage cables. The rotation of the spiral disk drives the claw to move toward the center and clamps the outer side of the cable, thereby increasing the traction contact area, avoiding the operation of wedge angle opening and binding of the cable end, effectively preventing slipping during traction, and improving the traction tension. At the same time, it can also adapt to the traction operation of high-voltage cables of different specifications, avoiding the cable breaking caused by uneven local force, reducing safety hazards, and protecting product quality and employee safety during operation.

[0020] (2) By turning the spiral disk, the spiral disk is driven to rotate, and the claws are moved toward the center, so that the cable end can be clamped quickly, accurately and reliably. This mechanism simplifies the operation process, reduces manual intervention and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of this application;

[0022] Figure 2 yes Figure 1 Schematic diagram of the cross section at AA in the middle;

[0023] Figure 3 yes Figure 1 Schematic diagram of the cross section at the middle BB;

[0024] Figure 4 It is a structural diagram of the application scenario of the traction device.

[0025] In the figure, 10, pay-off frame; 11, traction machine; 12, take-up frame; 13, equipment;

[0026] 2. Cable;

[0027] 3. Fixed sleeve;

[0028] 4. Clamping claw; 40. Clamping block;

[0029] 5. Adjustment mechanism; 50. Screw; 500. Screw disk; 500a. Screw groove; 501. Connecting cap; 51. Fixing bracket; 510. Chuck; 511. Fixing base; 52. Guide groove; 53. Connecting hole;

[0030] 6. Traction rope;

[0031] 7. Bracket. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figures 1 to 4As shown, the utility model is an adjustable traction device for a high-voltage cable 2, which is used to pull the cable 2 on the pay-off frame 10 into the take-up frame 12 through a traction machine 11, wherein the traction device includes: a fixed sleeve 3, which is internally provided with a plurality of claws 4 distributed in a ring and equidistantly, and the claws 4 are used to clamp the end of the cable 2; an adjusting mechanism 5, one end of which is arranged outside the fixed sleeve 3, and the other end extends into the fixed sleeve 3 and is movably connected to the claws 4, and the adjusting mechanism 5 is used to drive the plurality of claws 4 to synchronously approach or move away from the axis of the fixed sleeve 3; a traction rope 6, one end of which is detachably connected to the adjusting mechanism 5, and the other end is movably connected to the take-up frame 12 to guide the cable 2 into the take-up frame 12; when the end of the cable 2 in the pay-off frame 10 is clamped by the claws 4, the traction machine 11 is used to drive the end of the cable 2 close to the take-up frame 12, so that the traction rope 6 can be connected to the take-up frame 12 and guide the end of the cable 2 into the take-up frame 12.

[0034] This solution is mainly to achieve the traction of the cable 2 ends, specifically, Figures 1 to 3 As shown, before the production process of the high-voltage cable 2, several claws 4 (the number of claws 4 in this embodiment is 6, but the number of claws 4 is not limited to one in this embodiment and can also be adaptively adjusted according to actual clamping requirements) are opened to a position sufficient to allow the cable 2 to pass through. As the end of the cable 2 transmitted by the pay-off frame 10 extends into the fixing sleeve 3, the adjustment mechanism 5 starts to move, so that the claws 4 tighten and firmly clamp the end of the cable 2. Then, under the pulling of the traction machine 11 and the equipment 13, the cable 2 moves along a predetermined path from the pay-off frame 10 to the take-up frame 12. During this process, the claws 4 always maintain a stable grip on the cable 2 to ensure that the cable 2 is pulled smoothly and without damage; when the traction rope 6 can be tied to the take-up frame 12, the end of the cable 2 can be removed from the fixing sleeve 3 without relying on manpower and inserted into the plug-in slot (not shown in the figure) for the end of the cable 2 in the take-up frame 12, thereby completing the entire traction process. It can be seen that the traction device utilizes an adjustable claw 4 design to allow rapid adaptation to cables 2 of different diameters, thereby improving flexibility and work efficiency during operation. At the same time, by precisely controlling the clamping force of the claw 4, damage to the cable 2 due to over-tight clamping or falling off of the cable 2 due to unstable clamping is avoided, thereby improving the safety of the operation. The overall structure is simple, avoiding operations such as wedge angle opening and binding at the end of the cable 2, reducing the difficulty of operation, and realizing effective traction of the cable 2.

[0035] Preferably, the traction rope 6 in this embodiment adopts a steel wire rope structure, which is conducive to stably guiding the end of the cable 2 into the take-up frame 12, thereby improving the stability of the structure. On the other hand, after the end of the cable 2 enters the take-up frame 12, it is convenient to disassemble for reuse.

[0036] The adjustment mechanism 5 includes: a spiral member 50, which is rotatably arranged in the fixed sleeve 3, and the movable end of the spiral member 50 is connected to the claw 4, so that when the spiral member 50 rotates, it can drive the claw 4 to move closer to or away from the axis of the fixed sleeve 3; a fixed frame 51, which is L-shaped, one end of the fixed frame 51 is connected to the fixed sleeve 3, and the other end extends outside the fixed sleeve 3, and a chuck 510 is provided on the fixed frame 51, and the chuck 510 is used to guide the claw 4 to move in the radial direction of the fixed sleeve 3.

[0037] Further, if Figures 1 to 3 As shown, a portion of the spiral member 50 extends out of the fixed sleeve 3, which brings convenience to the workers during operation. The design of the spiral member 50 allows the clamping force of the claw 4 to be accurately adjusted, avoiding problems caused by clamping too tight or too loose, and improving the reliability and safety of the operation; and the combined design of the chuck 510 and the fixing frame 51 ensures the stability of the claw 4 during movement, avoids the claw 4 from deflecting or getting stuck, and ensures smooth traction of the cable 2.

[0038] Preferably, the claws 4 in this embodiment are designed to be long and strip-shaped as a whole. When the claws 4 clamp the end of the cable 2, it is beneficial to increase the contact area during traction, prevent slipping during traction, and increase the traction force; not only that, several claws 4 in this embodiment can move within the opening and closing range of 70mm-180mm, thereby realizing the traction operation of high-voltage cables 2 of different specifications before the production process.

[0039] The spiral member 50 includes a spiral disk 500 and a connecting cap 501. A spiral groove 500a is formed in the spiral disk 500. A locking block 40 is formed on the claw 4. The locking block 40 is movably engaged with the spiral groove 500a. The connecting cap 501 is detachably connected to the end of the spiral disk 500 away from the claw 4, and is used to drive the spiral disk 500 to rotate to adjust the opening and closing range of the claw 4.

[0040] like Figures 1 to 3 As shown, when the connecting cap 501 exposed outside the fixing sleeve 3 rotates, the claw 4 can move along the direction of the spiral groove 500a by relying on the locking block 40, and because of the traction limit of the chuck 510 in the radial direction, several claws 4 can approach or move away from the axial line of the fixing sleeve 3, and finally achieve the clamping of the cable 2 end. The overall structure is relatively simple and the operation is convenient and fast. It effectively ensures the stability of the claw 4 during the movement, avoids the claw 4 from offsetting or getting stuck, and provides a guarantee for the fluency and accuracy of the subsequent smooth pulling of the cable 2.

[0041] A guide groove 52 is formed on the chuck 510 and the fixing frame 51 . The guide groove 52 is arranged parallel to the radial direction of the fixing sleeve 3 , and the clamping claw 4 is movably clamped in the guide groove 52 .

[0042] Further, if Figures 1 to 3 As shown, the guide groove 52 is arranged along the radial direction of the fixed sleeve 3. Since the claw 4 is movably engaged in the guide groove 52, and the spiral disk 500 pulls the claw 4, the claw 4 can gradually approach the center from the outer diameter of the spiral groove 500a during the rotation of the connecting cap 501, and can also move along the outer diameter of the spiral groove 500a. Figure 2 The guide groove 52 slides in the length direction (i.e., the radial direction of the fixed sleeve 3), and finally the end of the cable 2 is clamped. Under the joint action of the guide groove 52 and the spiral groove 500a, the stability and reliability of the traction device are further improved.

[0043] Preferably, a fixed base 511 is also provided on the fixed frame 51, and the traction rope 6 is detachably connected to the fixed base 511. When the end of the above-mentioned cable 2 is inserted into the plug-in slot (not shown in the figure) for the end of the cable 2 in the take-up frame 12, the traction rope 6 can be removed from the take-up frame 12 and the fixed base 511 to facilitate reuse in subsequent traction operations, saving production costs.

[0044] Preferably, a connecting hole 53 is formed between the fixing frame 51 and the fixing sleeve 3, and between the spiral disk 500 and the connecting cap 501 in this embodiment. Figure 1 As shown, the connection hole 53 in this embodiment is a threaded hole. A fixing member is connected to the thread, thereby fixing the fixing frame 51 in the fixing sleeve 3. The connecting cap 501 is fixedly connected to the spiral disk 500, ensuring the smooth operation of the traction device. It should be noted that the fixing member in this embodiment can be replaced by screws, screws, or other connecting components, and this structure can also be used to achieve a detachable installation between the fixing base 511 and the fixing frame 51 in this embodiment.

[0045] This embodiment also includes a bracket 7 arranged between the take-up frame 12 and the pay-off frame 10, as shown in FIG. Figure 4 As shown, the bracket 7 can support and limit the cable 2 during operation, ensuring that the cable 2 can move smoothly along the transmission direction under the joint operation of the traction machine 11 and the equipment 13, effectively avoiding the cable 2 from getting entangled and affecting the work efficiency and stability during operation.

[0046] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0049] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. An adjustable traction device for high-voltage cables, used to pull the cable on the pay-off frame to the take-up frame via a traction machine, characterized in that: The traction device comprises: A fixing sleeve, internally provided with a plurality of claws distributed in an annular shape and at equal intervals, the claws being used to clamp the cable end; an adjusting mechanism, one end of which is disposed outside the fixing sleeve and the other end of which extends into the fixing sleeve and is movably connected to the claws, the adjusting mechanism being used to drive the plurality of claws to synchronously approach or move away from the axis of the fixing sleeve; A traction rope, one end of which is detachably connected to the adjustment mechanism and the other end of which is movably connected to the take-up frame, for guiding the cable into the take-up frame; When the cable end in the pay-off frame is clamped by the clamping claw, the traction machine is used to drive the cable end toward the take-up frame, so that the traction rope can be connected to the take-up frame and guide the cable end into the take-up frame.

2. The adjustable traction device for high-voltage cables according to claim 1, characterized in that: The regulating mechanism comprises: A spiral member is rotatably disposed in the fixed sleeve, and a movable end of the spiral member is connected to the claw, so that when the spiral member rotates, it can drive the claw to move closer to or away from the axis of the fixed sleeve; The fixing frame is L-shaped, one end of the fixing frame is connected to the fixing sleeve, and the other end extends out of the fixing sleeve. A chuck is provided on the fixing frame, and the chuck is used to guide the claw to move along the radial direction of the fixing sleeve.

3. The adjustable traction device for high-voltage cables according to claim 1, characterized in that: The opening and closing range of the clamping claws is 70mm-180mm.

4. The adjustable traction device for high-voltage cables according to claim 2, characterized in that: The spiral member includes a spiral disk and a connecting cap, a spiral groove is formed in the spiral disk, and a locking block is formed on the claw, and the locking block is movably engaged with the spiral groove; the connecting cap is detachably connected to the end of the spiral disk away from the claw, and is used to drive the spiral disk to rotate to adjust the opening and closing range of the claw.

5. The adjustable traction device for high-voltage cables according to claim 2, characterized in that: The fixing frame is also provided with a fixing base, and the traction rope is detachably connected to the fixing base.

6. The adjustable traction device for high-voltage cables according to claim 2, characterized in that: A guide groove is formed on the chuck and the fixing frame. The guide groove is arranged parallel to the radial direction of the fixing sleeve, and the clamping claw is movably clamped in the guide groove.

7. The adjustable traction device for high-voltage cables according to claim 4, characterized in that: A connecting hole is formed between the fixing frame and the fixing sleeve, and between the spiral disk and the connecting cap. The connecting hole allows fixing members to pass through and connect with each other.

8. The adjustable traction device for high-voltage cables according to claim 1, characterized in that: It also includes a bracket arranged between the take-up frame and the pay-off frame, and the bracket is used to receive the cable.

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