Contact network arm insulator replacement tool

Abstract

This utility model provides a tool for replacing catenary insulators, including a support frame. A hinge seat is fixedly connected to the side wall of the support frame, and a connector is hinged to the hinge seat. A guide rail is fixedly connected to the other end of the connector, and a sliding cover is slidably connected to the guide rail. A catenary frame is fixedly connected to the other end of the sliding cover. A double-acting screw and a sliding rod are respectively connected between the front and rear plates of the catenary frame. Slider blocks are threaded onto the outer walls of both ends of the double-acting screw, and clamping rings are fixedly connected to the outer walls of the two sliders on opposite sides. This utility model, through the coordinated structure of the support frame, hinge seat, connector, guide rail, sliding cover, catenary frame, double-acting screw, sliding rod, slider, clamping ring one, adjusting screw, and clamping ring two, is more convenient to operate than replacing catenary insulators using a hand lever hoist.

Description

Technical Field

[0001] This utility model relates to the field of overhead contact line maintenance technology, and in particular to a tool for replacing overhead contact line cantilever insulators. Background Technology

[0002] The overhead contact system is the main framework of railway electrification engineering. It is a special type of power transmission line that supplies electricity to electric locomotives and is erected above the railway line. The cantilever arm is the main supporting structure of the overhead contact system. The horizontal cantilever arm and the inclined cantilever arm are used to suspend the catenary wire and the contact wire, respectively. They are installed on the upper part of the overhead contact system support in the form of a right triangle. They are used to suspend the weight of the overhead contact system and to position the contact wire. The electrical insulation component between the cantilever arm and the grounding electrode is the insulator, which is mainly used to bear the load of the conductor and maintain the electrical insulation between the conductor and the tower itself.

[0003] In existing technology, when replacing overhead contact line cantilever insulators, a hand-operated winch is generally used as a tool. This involves fixing wire sleeves to the support post and the cantilever arm, connecting the two sleeves with a hand-operated winch, and then having the operator crank the winch to relieve the load on the cantilever arm. This replacement method, due to the weight of the hand-operated winch, requires significant physical exertion from the operator, thus affecting work efficiency and presenting inconvenience. Therefore, we propose an improved tool for replacing overhead contact line cantilever insulators. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a tool for replacing contact wire cantilever insulators.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a contact wire cantilever insulator replacement tool, comprising a support frame, a hinge seat fixedly connected to the side wall of the support frame, a connector hinged to the hinge seat, a guide rail fixedly connected to the other end of the connector, a sliding cover slidably connected to the guide rail, a cantilever frame fixedly connected to the other end of the sliding cover, a bidirectional screw and a sliding rod respectively connected between the front and rear plates of the cantilever frame, sliders threadedly connected to the outer walls of both ends of the bidirectional screw, and clamping rings fixedly connected to the outer walls of the two sliders on opposite sides.

[0006] Furthermore, adjusting screws are threadedly connected to the front and rear side plates of the support frame, and clamping rings are rotatably connected to the opposite ends of the two adjusting screws.

[0007] The above technical solution allows the adjusting screw to be rotated to move the clamping ring two, thereby clamping and fixing the support column.

[0008] Furthermore, the bidirectional screw is rotatably connected to the wrist arm, the slide rod is fixedly connected to the wrist arm, and both sliders are slidably connected to the slide rod, with the two sliders arranged symmetrically about the sliding cover.

[0009] The above technical solution limits the movement of the slider by using a slide bar, allowing the slider to move more smoothly under the drive of the bidirectional screw.

[0010] Furthermore, guide grooves are provided on both the front and rear outer walls of the guide rail, and guide blocks are fixedly connected to the inner wall of the sliding cover, with the guide blocks slidably disposed within the guide grooves.

[0011] By using the above technical solution, the stability of the sliding cover during movement can be further improved by having the guide block slide within the guide groove.

[0012] Furthermore, a sliding groove is provided in the guide rail, and a sliding cylinder is slidably connected in the sliding groove. One end of the sliding cylinder passes through the guide rail and is fixedly connected to the inner wall of the sliding cover. A lead screw is rotatably connected in the sliding groove, and the sliding cylinder is threadedly connected to the outer wall of the lead screw.

[0013] The above technical solution allows the movement of the slide cylinder to be controlled by rotating the lead screw, which in turn causes the slide cover to slide relative to the guide rail.

[0014] Furthermore, a rotating rod is rotatably connected inside the guide rail, a bevel gear one is fixedly connected to the outer wall of the rotating rod, and a bevel gear two is fixedly connected to the outer wall of the lead screw, with the bevel gear one and bevel gear two meshing together.

[0015] The above technical solution involves rotating the rotary rod to drive the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, thereby driving the lead screw to rotate.

[0016] This utility model has the following beneficial effects:

[0017] (1) Compared with the prior art, the contact wire cantilever insulator replacement tool, by setting up a support frame, hinge seat, connector, guide rail, sliding cover, cantilever frame, bidirectional screw, slide rod, slider, clamp ring one, adjusting screw and clamp ring two in cooperation, can use clamp ring two to clamp and fix the support column, and then use clamp ring one to clamp the cantilever arm, thereby transferring the weight of the cantilever arm to the tool, thus making it convenient for workers to replace insulators. Compared with the replacement using a hand lever hoist, it is more convenient to operate.

[0018] (2) Compared with the prior art, the contact wire cantilever insulator replacement tool is equipped with a sliding cylinder, screw rod, rotating rod, bevel gear one and bevel gear two structure. The rotating rod can drive bevel gear one to rotate, thereby driving bevel gear two to rotate. Then the screw rod can be rotated to control the movement of the sliding cylinder, thereby driving the sliding cover to move relative to the guide rail. In this way, the extension length of the cantilever frame can be adjusted, so that the device can be adapted to cantilever arms of different lengths and has higher applicability. Attached Figure Description

[0019] Figure 1 This is a front mounting structure diagram of the contact wire cantilever insulator replacement tool proposed in this utility model;

[0020] Figure 2 This is a rear mounting structure diagram of the contact wire cantilever insulator replacement tool proposed in this utility model;

[0021] Figure 3 This is a main structural diagram of the contact wire cantilever insulator replacement tool proposed in this utility model;

[0022] Figure 4 This is a diagram showing the internal structure of the contact wire cantilever insulator replacement tool proposed in this utility model.

[0023] Figure 5 This is a cross-sectional view of the sliding cover of the contact wire cantilever insulator replacement tool proposed in this utility model.

[0024] In the diagram: 1. Support frame; 2. Hinge seat; 3. Connector; 4. Guide rail; 5. Sliding cover; 6. Carrier arm; 7. Two-way screw; 8. Slide rod; 9. Slider; 10. Clamping ring one; 11. Adjusting screw; 12. Clamping ring two; 13. Guide groove; 14. Guide block; 15. Slide groove; 16. Slide cylinder; 17. Lead screw; 18. Rotary rod; 19. Bevel gear one; 20. Bevel gear two. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "front", "rear", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Reference Figure 1-5 The contact wire cantilever insulator replacement tool provided by this utility model includes a support frame 1, a hinge seat 2 fixedly connected to the side wall of the support frame 1, a connector 3 hinged to the hinge seat 2, a guide rail 4 fixedly connected to the other end of the connector 3, a sliding cover 5 slidably connected to the guide rail 4, a cantilever frame 6 fixedly connected to the other end of the sliding cover 5, a bidirectional screw 7 and a sliding rod 8 respectively connected between the front and rear plates of the cantilever frame 6, a slider 9 threadedly connected to the outer walls of both ends of the bidirectional screw 7, and a clamping ring 10 fixedly connected to the outer wall of the two sliders 9 on opposite sides. By rotating the bidirectional screw 7, the two sliders 9 can be driven to move relative to each other, thereby driving the two clamping rings 10 to move relative to each other, thus clamping and fixing the cantilever.

[0029] Adjusting screws 11 are threadedly connected to the front and rear side plates of the support frame 1. Each of the two adjusting screws 11 is rotatably connected to a clamping ring 12 at one end. By rotating the adjusting screws 11, the clamping ring 12 can be moved to clamp and fix the support column. A guide rod structure that runs through the front and rear plates of the support frame 1 is connected to the outer wall of the clamping ring 12. This guide rod structure can prevent the clamping ring 12 from deflecting along with the adjusting screws 11.

[0030] The bidirectional screw 7 is rotatably connected to the wrist arm 6, the slide bar 8 is fixedly connected to the wrist arm 6, and the two sliders 9 are slidably connected to the slide bar 8. The two sliders 9 are symmetrically arranged about the slide cover 5. The slide bar 8 limits the movement of the sliders 9, so that the sliders 9 can move more smoothly under the drive of the bidirectional screw 7.

[0031] Guide grooves 13 are provided on the front and rear outer walls of the guide rail 4. A guide block 14 is fixedly connected to the inner wall of the sliding cover 5. The guide block 14 is slidably disposed in the guide groove 13. By sliding the guide block 14 in the guide groove 13, the stability of the sliding cover 5 when moving can be further improved.

[0032] A groove 15 is provided inside the guide rail 4. A slide cylinder 16 is slidably connected inside the groove 15. One end of the slide cylinder 16 passes through the guide rail 4 and is fixedly connected to the inner wall of the slide cover 5. A lead screw 17 is rotatably connected inside the groove 15. The slide cylinder 16 is threadedly connected to the outer wall of the lead screw 17. The movement of the slide cylinder 16 can be controlled by rotating the lead screw 17, thereby driving the slide cover 5 to slide relative to the guide rail 4.

[0033] A rotating rod 18 is rotatably connected inside the guide rail 4. A bevel gear 19 is fixedly connected to the outer wall of the rotating rod 18. A bevel gear 20 is fixedly connected to the outer wall of the lead screw 17. The bevel gear 19 and the bevel gear 20 are meshed. By rotating the rotating rod 18, the bevel gear 19 can be driven to rotate, which in turn can drive the bevel gear 20 to rotate, thereby driving the lead screw 17 to rotate.

[0034] Working principle: In use, first, according to the length of the insulator arm, rotate the rotating rod 18 to drive the bevel gear 19 to rotate, which in turn drives the bevel gear 20 to rotate, which in turn drives the lead screw 17 to rotate. This controls the slide cylinder 16 to drive the slide cover 5 to slide and extend relative to the guide rail 4, so that the insulator arm frame 6 can match the length of the insulator arm. Then, bring the device to the designated position, first rotate the adjusting screw 11 to drive the clamping ring 12 to clamp and fix the support column, and then rotate the bidirectional screw 7 to control the relative movement of the two sliders 9, which in turn drives the clamping ring 10 to clamp the insulator arm, thereby transferring the weight of the insulator arm to the tool, so that the insulator can be disassembled and replaced. The operation is convenient and time-saving.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for replacing catenary cantilever insulators, comprising a support frame (1), characterized in that: A hinge seat (2) is fixedly connected to the side wall of the support frame (1). A connector (3) is hinged to the hinge seat (2). A guide rail (4) is fixedly connected to the other end of the connector (3). A sliding cover (5) is slidably connected to the guide rail (4). A carousel frame (6) is fixedly connected to the other end of the sliding cover (5). A double-acting screw (7) and a sliding rod (8) are respectively connected between the front and rear plates of the carousel frame (6). A slider (9) is threadedly connected to the outer wall of both ends of the double-acting screw (7). A clamping ring (10) is fixedly connected to the outer wall of the two sliders (9) on opposite sides.

2. The contact wire cantilever insulator replacement tool according to claim 1, characterized in that: The front and rear side plates of the support frame (1) are threaded with adjusting screws (11), and the opposite ends of the two adjusting screws (11) are rotatably connected with clamping rings (12).

3. The contact wire cantilever insulator replacement tool according to claim 1, characterized in that: The bidirectional screw (7) is rotatably connected to the carousel frame (6), the slide rod (8) is fixedly connected to the carousel frame (6), and the two sliders (9) are slidably connected to the slide rod (8). The two sliders (9) are symmetrically arranged about the slide cover (5).

4. The contact wire cantilever insulator replacement tool according to claim 1, characterized in that: Guide grooves (13) are provided on the front and rear outer walls of the guide rail (4), and guide blocks (14) are fixedly connected to the inner wall of the sliding cover (5). The guide blocks (14) are slidably disposed in the guide grooves (13).

5. The contact wire cantilever insulator replacement tool according to claim 1, characterized in that: The guide rail (4) has a groove (15) inside, and a slide cylinder (16) is slidably connected inside the groove (15). One end of the slide cylinder (16) passes through the guide rail (4) and is fixedly connected to the inner wall of the slide cover (5). A lead screw (17) is rotatably connected inside the groove (15), and the slide cylinder (16) is threadedly connected to the outer wall of the lead screw (17).

6. The contact wire cantilever insulator replacement tool according to claim 5, characterized in that: A rotating rod (18) is rotatably connected inside the guide rail (4). A bevel gear (19) is fixedly connected to the outer wall of the rotating rod (18). A bevel gear (20) is fixedly connected to the outer wall of the lead screw (17). The bevel gear (19) and the bevel gear (20) are meshed together.

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