Maintenance device for paying-off tackle

Abstract

The utility model relates to a paying-off tackle repairing and maintaining device which comprises a repairing platform, a driving platform is arranged on the side edge of the repairing platform, a lifting suspension arm is rotationally installed on the top of the driving platform, a lifting motor is further installed on the top of the driving platform, a lifting rope is wound around the output end of the lifting motor, and a lifting hook is connected to the tail end of the lifting rope. The lifting rope is matched with the lifting hook through the lifting wheel on the lifting suspension arm to lift the wheel sheet; a door-shaped frame is arranged at the top of the maintenance platform, and a pushing structure is arranged at the top of the door-shaped frame in a penetrating mode. And a pressing hole is formed in the center of the maintenance platform in a penetrating mode, the pressing hole is formed in the bottom of the pushing structure, potential safety hazards caused by manual disassembly can be avoided, and meanwhile the maintenance function except for disassembly is achieved.

Description

Technical Field

[0001] This utility model relates to a maintenance and repair device for a wire-laying pulley, belonging to the technical field of wire-laying pulley repair. Background Technology

[0002] The wire-laying pulley is one of the essential tools for overhead power line construction. It is a specialized tool used to support the laying of steel wire ropes and various conductors and ground wires during overhead power line construction. The technical condition of the wire-laying pulley directly affects the safety risks of the construction process and impacts the laying, tensioning, and accessory installation procedures. Due to its high frequency of use and high strength, the pulley's wheels frequently need to be disassembled and maintained. Wear, breakage, cracks, and bearing damage can occur, necessitating disassembly, repair, and replacement.

[0003] Repairing a pulley requires disassembling each wheel to check for damage to the wheel and bearing. Taking a seven-wheeled pulley as an example, the pulley weighs 205kg. Its disassembly and assembly require a lot of manpower and pose many safety hazards. Furthermore, due to corrosion and other reasons, the bearings on the main shaft and wheel cannot be separated, which makes its repair very difficult. Utility Model Content

[0004] In order to solve the above-mentioned problems in the existing technology, this utility model provides a maintenance device for a wire-laying pulley, which can avoid the safety hazards caused by manual disassembly, and also has maintenance functions in addition to disassembly.

[0005] The technical solution of this utility model is as follows:

[0006] A maintenance device for a line-laying pulley includes a maintenance platform, a drive platform on the side of the maintenance platform, a lifting boom rotatably mounted on the top of the drive platform, a lifting motor also mounted on the top of the drive platform, a lifting rope wound around the output end of the lifting motor, a hook connected to the end of the lifting rope, and the lifting rope, through a pulley on the lifting boom and in conjunction with the hook, is used to lift the wheel; a gantry frame is provided on the top of the maintenance platform, and a pushing structure passes through the top of the gantry frame; a pressing hole is provided through the center of the maintenance platform, and the pressing hole is located at the bottom of the pushing structure.

[0007] The pushing structure includes a hydraulic cylinder that passes through the top of the portal frame. The telescopic end of the hydraulic cylinder is oriented toward the pressing hole. The hydraulic cylinder is connected to a hydraulic pump through an oil inlet pipe and an oil outlet pipe.

[0008] The crane boom is equipped with a steering handle.

[0009] The hydraulic pump is controlled to start and stop via a hydraulic switch handle.

[0010] The hook connected to the lifting motor is also equipped with a locking device for securing the line-laying trolley. The locking device consists of a supporting hook and a central shaft bolt, with the central shaft bolt located below the hook. The top of the hook is connected to the end of the motor hook and is locked by the central shaft bolt and the threaded hole of the central shaft of the line-laying trolley, thereby enabling the line-laying trolley to move by operating the lifting motor.

[0011] The maintenance platform has a frame at its front end, and a central shaft is rotatably mounted on the frame. The central shaft matches the central shaft of the wire-laying trolley.

[0012] This utility model has the following beneficial effects:

[0013] This utility model uses a crane boom and a crane motor to lift the wire-laying trolley, saving manpower. At the same time, it can be used with a clamping device to lift the wire-laying trolley. When clamping the wire-laying trolley, the force generated by the force causes the clamping plates to close and clamp the wire-laying trolley tightly. It has the characteristic that the clamping force increases with the weight as the hook rope rises, ensuring the stability of the lifting and reducing the loss of manpower.

[0014] Meanwhile, after the central shaft of the line-feeding trolley is ejected, the bearing to be repaired can be removed from the wheel. After the bearing is repaired, lubricating oil is applied and the wheel is put back in. The wheel is then placed in the bearing and locked. The wheel is rotated to observe whether it can rotate normally and whether it wobbles, thus checking whether the maintenance work has been completed. Attached Figure Description

[0015] Figure 1 This is a side view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the clamping device of this utility model.

[0017] The reference numerals in the figure are as follows:

[0018] 1. Central shaft; 2. Frame; 3. Crane boom; 4. Crane motor; 5. Gantry frame; 6. Hydraulic cylinder; 7. Oil inlet pipe; 8. Oil outlet pipe; 9. Maintenance platform; 10. Hydraulic pump; 11. Steering handle; 12. Hydraulic switch handle; 13. Hook; 14. Central shaft bolt. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] Please see Figures 1 to 2 The utility model provides a technical solution:

[0021] A maintenance device for a wire-laying pulley includes a maintenance platform 9, a drive platform on the side of the maintenance platform 9, a lifting boom 3 rotatably mounted on the top of the drive platform, a steering handle 11 mounted on the lifting boom 3, and a lifting motor 4 mounted on the top of the drive platform. Specifically, the lifting motor 4 has a self-locking function, that is, the reducer equipped with the rotating motor 4 is a worm gear reducer with self-locking capability. A lifting rope is wound around the output end of the lifting motor 4, and a hook is connected to the end of the lifting rope. The lifting rope is used to lift the wheel through the lifting wheel on the lifting boom 3 in conjunction with the hook. A portal frame 5 is provided on the top of the maintenance platform 9, and a pushing structure passes through the top of the portal frame 5. A pressing hole is provided through the center of the maintenance platform 9 and is located at the bottom of the pushing structure. Specifically, the pushing structure includes a hydraulic cylinder 6 passing through the top of the portal frame 5. The telescopic end of the hydraulic cylinder 6 faces the pressing hole. The hydraulic cylinder 6 is connected to a hydraulic pump 10 through an oil inlet pipe 7 and an oil outlet pipe 8. The hydraulic pump 10 is controlled to start and stop by a hydraulic switch handle 12.

[0022] When work is required, the lifting boom 3 is rotated by the steering handle 11 so that the lifting rope at the end of the lifting boom 3 is aligned with the central axis of the line-laying trolley. The line-laying trolley is then hooked up in any way, such as by setting an existing docking structure on the central axis of the line-laying trolley. The lifting boom 3 is then rotated again, and the lifting motor 4 is started to tighten the lifting rope, thereby lifting the line-laying trolley and rotating it until the central axis of the line-laying trolley is aligned with the pressing hole. At the same time, a magnetic attraction structure can be added here to assist in alignment. As a preferred option, the pressing hole has a raised center. Then, the hook is released from the line-laying trolley, and the hydraulic pump 10 is driven to push the output end of the hydraulic cylinder 6 toward the central axis of the line-laying trolley until the wheel is completely removed.

[0023] The end of the hook is also equipped with a locking device, which is used to fix the wheel and bearing as a whole. The locking device includes a hook 13 and a central shaft bolt 14. The central shaft bolt 14 is located below the hook 13, and the end of the hook of the lifting motor 4 is hooked onto the hook 13. When the lifting motor 4 is started to tighten the lifting rope, the central shaft of the wire laying pulley wheel has a threaded hole. The central shaft bolt 14 is locked into the threaded hole, so that the hook, locking device and wire laying pulley become a whole. The lifting motor 4 can be operated to control the lifting and lowering of the entire wire laying pulley.

[0024] The maintenance platform 9 has a frame 2 at the front end, and a central shaft 1 is rotatably mounted on the frame 2. The central shaft 1 matches the central shaft of the wire feeding trolley. After the central shaft of the wire feeding trolley is pushed out, the bearing to be repaired is taken out and the wheel is removed. After the bearing is repaired, lubricating oil is applied and the wheel is put back in. Then the wheel is put into the central shaft 1 and locked. Rotate the wheel to observe whether the wheel can rotate normally and whether there is any shaking.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A maintenance and repair device for a wire-laying pulley, comprising a maintenance platform (9), characterized in that: The maintenance platform (9) is provided with a drive platform on its side. A lifting boom (3) is rotatably installed on the top of the drive platform. A lifting motor (4) is also installed on the top of the drive platform. A lifting rope is wound around the output end of the lifting motor (4). A hook is connected to the end of the lifting rope. The lifting rope is used to lift the wheel piece through the lifting wheel on the lifting boom (3) and the hook. A portal frame (5) is provided on the top of the maintenance platform (9). A pushing structure is provided on the top of the portal frame (5). A pressing hole is provided through the center of the maintenance platform (9). The pressing hole is located at the bottom of the pushing structure.

2. The wire-laying pulley maintenance device as described in claim 1, characterized in that: The pushing structure includes a hydraulic cylinder (6) passing through the top of the gantry frame (5). The telescopic end of the hydraulic cylinder (6) is set towards the pressing hole. The hydraulic cylinder (6) is connected to the hydraulic pump (10) through an oil inlet pipe (7) and an oil outlet pipe (8).

3. The wire-laying pulley maintenance device as described in claim 2, characterized in that: A steering handle (11) is installed on the lifting boom (3).

4. The wire-laying pulley maintenance device as described in claim 3, characterized in that: The hydraulic pump (10) is controlled to start and stop by a hydraulic switch handle (12).

5. The wire-laying pulley maintenance device as described in claim 1, characterized in that: The end of the hook is also provided with a locking device, which is used to lock the wire-laying trolley. It is locked by the central shaft bolt (14) and the central shaft threaded hole of the wire-laying trolley, so that the wire-laying trolley can be moved by operating the lifting motor (4).

6. The wire-laying pulley maintenance device as described in claim 5, characterized in that: The locking device consists of a hook (13) and a central bolt (14), with the central bolt (14) located below the hook (13).

7. The wire-laying pulley maintenance device as described in claim 4, characterized in that: The maintenance platform (9) has a frame (2) at its front end, and a central shaft (1) is provided on the frame (2). The central shaft (1) is matched with the bearing of the wire-laying pulley wheel.

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