Coupling dismounting tool

Abstract

The utility model relates to a coupler dismounting tool in the technical field of dismounting tools, the dismounting device comprises a dismounting assembly used for dismounting a coupler, and the top end of the dismounting assembly is provided with an adjusting assembly used for fixing the dismounting assembly. The driving device comprises a connecting assembly used for driving the dismounting assembly to move, and a driving assembly used for driving the connecting assembly to rotate is arranged in the special pulling disc. A clamping block at the bottom end of a second connecting rod is inserted into the coupler, then a rotating shaft is driven by a hand wheel to rotate, a screw can synchronously rotate along with the rotating shaft, the four dismounting devices can be controlled to be close to one another, the clamping block is clamped on the inner edge of the coupler, and then a first nut is adjusted to be in threaded connection with a first connecting rod. The threaded sleeve plate can be fixed by adjusting the threaded connection between the second nut and the second connecting rod, so that the threaded sleeve plate is prevented from deviating; and then pulling force is applied through the grip, so that the coupler can be disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to a coupling disassembly tool. Background Art

[0002] The coupling is a main part of the pump product and is used to transmit torque. A coupling is installed at the shaft head of the pump shaft, and a coupling is installed on the shaft extension of the motor. During the major overhaul of the water pump L218, since the medium of the SEN pump is seawater, the corrosion between the sleeve coupling and the pump shaft makes disassembly difficult. Therefore, a disassembly tool is needed to disassemble the coupling of the water pump. Generally, there is an interference fit between the existing coupling and the shaft. Because the equipment has a large load and transmits a large torque, the interference amount between the coupling and the shaft is generally large, making disassembly difficult. For example, as shown in a tool for disassembling the water pump coupling with the Chinese patent application number CN202322879396.9, the support frame is a hollow cuboid structure with openings at both ends; several holes are symmetrically arranged on two parallel side walls of the support frame; several lead screws all pass through the holes of the support frame and the coupling and are fixed by nuts; a jack is also arranged between the coupling and the support frame.

[0003] However, when slowly pressing the jack between the support frame and the coupling, the coupling slowly withdraws from the pump shaft along with the pressure of the jack. Due to the small gap between the outer edge of the circular shaft of the coupling and the pump casing, the long claws of the conventional puller are mostly arc-shaped, and sufficient space is required to insert the claw hooks into the gap of the coupling during use; when disassembling the oil pump coupling, the conventional puller cannot be used due to limited space. Summary of the Utility Model

[0004] To solve the problem that the existing disassembly tool cannot be used due to limited space when disassembling the oil pump coupling as mentioned in the above background art, the utility model provides the following technical solutions:

[0005] A coupling disassembly tool includes a special puller plate. A disassembly device for disassembling the coupling is arranged below the special puller plate, and there are four disassembly devices. A driving device for driving the four disassembly devices to move is arranged in the special puller plate.

[0006] The disassembly device includes a disassembly component for disassembling the coupling, and an adjustment component for fixing the disassembly component is arranged at the top of the disassembly component.

[0007] The driving device includes a connection component for driving the disassembly component to move, and a driving component for driving the connection component to rotate is arranged in the special puller plate.

[0008] Further, the driving component includes a rotating shaft disposed in the dedicated puller for rotation. A handwheel for driving the rotation of the rotating shaft is fixedly installed at the top end of the rotating shaft, and a first bevel gear for driving the rotation of the connecting component is fixedly installed at the bottom end of the rotating shaft.

[0009] Further, the connecting component includes a second bevel gear meshing with the first bevel gear, and a screw rod for driving the movement of the disassembly component is fixedly installed at one end of the second bevel gear away from the rotating shaft.

[0010] Further, the adjusting component includes a threaded sleeve plate threadedly connected to the screw rod for movement. A first connecting rod is fixedly installed at the top end of the threaded sleeve plate, and an adjusting nut one for fixing the threaded sleeve plate is threadedly connected to the first connecting rod.

[0011] Further, a second connecting rod for inserting into the coupling is fixedly installed at the bottom end of the threaded sleeve plate. An adjusting screw two for cooperating with the adjusting nut one to lock the threaded sleeve plate is screwed on the rod body of the second connecting rod, and a clamping block for clamping on the coupling is fixedly installed at the bottom end of the second connecting rod.

[0012] Further, a through groove for placing the connecting component is formed at the top end of the dedicated puller, and a grip for pulling the dedicated puller is fixedly installed at the top end of the dedicated puller, and there are two grips.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] By providing a disassembly device and a driving device, when it is necessary to disassemble the coupling from the water pump, the rotating shaft can be driven to rotate by the handwheel, and under the meshing connection of the first bevel gear and the second bevel gear, the screw rod can be driven to rotate synchronously with the rotating shaft, so that the four disassembly devices can be controlled to approach each other. Then, the clamping block at the bottom end of the second connecting rod is inserted into the coupling. Similarly, the rotating shaft is driven to rotate by the handwheel, so that the clamping block is clamped on the inner edge of the coupling. Then, through the threaded connection between the adjusting nut one and the first connecting rod, and the threaded connection between the adjusting screw two and the second connecting rod, the threaded sleeve plate can be fixed to prevent the threaded sleeve plate from shifting; then, by applying a pulling force through the grip, the disassembly of the coupling can be completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a top view of the present utility model;

[0017] Figure 3 is a cross-sectional view of the dedicated puller of the present utility model;

[0018] Figure 4Schematic diagram of the structure of the disassembly device of the present utility model;

[0019] Figure 5 Schematic diagram of the structure of the driving device of the present utility model.

[0020] In the attached drawings, the list of component names represented by each reference numeral is as follows:

[0021] 100 - Special puller disc, 101 - Through groove, 102 - Handle;

[0022] 200 - Disassembly device, 210 - Adjusting component, 211 - First connecting rod, 212 - First adjusting nut, 213 - Threaded sleeve plate, 220 - Disassembly component, 221 - Second adjusting nut, 222 - Second connecting rod, 223 - Block;

[0023] 300 - Driving device, 310 - Driving component, 311 - Handwheel, 312 - Rotating shaft, 313 - First bevel gear, 320 - Connecting component, 321 - Second bevel gear, 322 - Screw rod. Detailed implementation manners

[0024] The preferred specific implementation manners for implementing the present utility model are described in detail below, and a clear and complete description is made in combination with the attached drawings.

[0025] Please refer to Figures 1 - 5 , the present utility model provides a coupling disassembly tool.

[0026] It includes a special puller disc 100. Below the special puller disc 100, there is a disassembly device 200 for disassembling the coupling, and there are four disassembly devices 200. Inside the special puller disc 100, there is a driving device 300 for driving the four disassembly devices 200 to move.

[0027] At the top end of the special puller disc 100, there is a through groove 101 for placing the connecting component 320, and there are four through grooves 101. The four through grooves 101 are arranged in a circumferential array on the disc body of the special puller disc 100; at the top end of the special puller disc 100, there are two handles 102 fixedly installed for pulling the special puller disc 100, so as to quickly disassemble the disassembly device 200 inserted into the coupling by using the handles 102, and thus the coupling on the water pump can be quickly disassembled.

[0028] The disassembly device 200 includes a disassembly component 220 for disassembling the coupling, and at the top end of the disassembly component 220, there is an adjusting component 210 for fixing the disassembly component 220.

[0029] The driving device 300 includes a connection component 320 for driving the disassembly component 220 to move, and the connection component 320 is located in the through groove 101; a driving component 310 for driving the connection component 320 to rotate is arranged in the special puller disc 100.

[0030] The driving component 310 includes a rotating shaft 312 arranged in the special puller disc 100 for rotation, and the shaft body of the rotating shaft 312 is connected to the special puller disc 100 through a bearing to facilitate the rotation of the rotating shaft 312; a handwheel 311 for driving the rotating shaft 312 to rotate is fixedly installed at the top end of the rotating shaft 312, and a first bevel gear 313 for driving the connection component 320 to rotate is fixedly installed at the bottom end of the rotating shaft 312.

[0031] The connection component 320 includes a second bevel gear 321 meshing with the first bevel gear 313, and a screw rod 322 for driving the disassembly component 220 to move is fixedly installed at one end of the second bevel gear 321 away from the rotating shaft 312, and the rod body of the screw rod 322 is connected to the groove wall of the through groove 101 through a bearing to facilitate the rotation of the screw rod 322.

[0032] The adjusting component 210 includes a threaded sleeve plate 213 threadedly connected to the screw rod 322 for movement, and the plate width of the threaded sleeve plate 213 is the same as the groove width of the through groove 101 to facilitate the movement of the threaded sleeve plate 213 in the through groove 101 under the rotation of the screw rod 322; thus, the disassembly component 220 can be adjusted accordingly according to the space of the coupling.

[0033] A first connecting rod 211 is fixedly installed at the top end of the threaded sleeve plate 213, and an adjusting nut 212 for fixing the threaded sleeve plate 213 is threadedly connected to the first connecting rod 211; so that the adjusting nut 212 can be screwed onto the first connecting rod 211 and cooperate with the through groove 101 to fix the threaded sleeve plate 213 to prevent the threaded sleeve plate 213 from shifting.

[0034] A second connecting rod 222 for inserting into the coupling is fixedly installed at the bottom end of the threaded sleeve plate 213. A second adjusting thread 221 for cooperating with the first adjusting nut 212 to lock the threaded sleeve plate 213 is screwed onto the rod body of the second connecting rod 222. A clamping block 223 for clamping the coupling is fixedly installed at the bottom end of the second connecting rod 222. Thus, when it is necessary to disassemble the coupling from the water pump, the handwheel 311 can be rotated to drive the rotating shaft 312 to rotate. Under the meshing connection of the first bevel gear 313 and the second bevel gear 321, the screw rod 322 can be driven to rotate synchronously with the rotating shaft 312, so as to control the four disassembly devices 200 to approach each other. Then, the clamping block 223 at the bottom end of the second connecting rod 222 is inserted into the coupling. Similarly, by rotating the handwheel 311 to drive the rotating shaft 312 to rotate, the clamping block 223 is clamped on the inner edge of the coupling. Then, through the threaded connection between the first adjusting nut 212 and the first connecting rod 211, and the threaded connection between the second adjusting nut 221 and the second connecting rod 222, the threaded sleeve plate 213 can be fixed to prevent the threaded sleeve plate 213 from shifting. Then, by applying a pulling force through the handle 102, the disassembly of the coupling can be completed.

[0035] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the present utility model. In addition, any non-creative modification made by those skilled in the art to the present utility model without creative work still falls within the protection scope of the present utility model.

Claims

1. A coupling disassembly tool, comprising a special pull plate (100), characterized in that: A disassembly device (200) for disassembling the coupling is provided below the dedicated pull plate (100), and there are four disassembly devices (200). A driving device (300) for driving the four disassembly devices (200) to move is provided inside the dedicated pull plate (100); The disassembly device (200) comprises a disassembly assembly (220) for disassembling the coupling, and an adjustment assembly (210) for fixing the disassembly assembly (220) is provided at the top end of the disassembly assembly (220); The driving device (300) comprises a connecting assembly (320) for driving the disassembly assembly (220) to move, and a driving assembly (310) for driving the connecting assembly (320) to rotate is arranged in the dedicated pull plate (100).

2. A coupling removal tool according to claim 1, characterized in that: The driving assembly (310) comprises a rotating shaft (312) arranged in the special pull plate (100) for rotation, a hand wheel (311) for driving the rotating shaft (312) to rotate is fixedly mounted on the top end of the rotating shaft (312), and a bevel gear 1 (313) for driving the connecting assembly (320) to rotate is fixedly mounted on the bottom end of the rotating shaft (312).

3. A coupling removal tool according to claim 2, characterized in that: The connecting assembly (320) comprises a second bevel gear (321) meshing with the first bevel gear (313); a screw rod (322) for driving the disassembly assembly (220) to move is fixedly mounted on one end of the second bevel gear (321) away from the rotating shaft (312).

4. A coupling removal tool according to claim 3, characterized in that: The adjustment assembly (210) comprises a threaded sleeve (213) threadedly connected to the screw rod (322) for movement, a connecting rod (211) being fixedly mounted on the top end of the threaded sleeve (213), and an adjustment nut (212) for fixing the threaded sleeve (213) being threadedly connected to the connecting rod (211).

5. A coupling removal tool according to claim 4, characterized in that: A second connecting rod (222) for inserting into the coupling is fixedly mounted on the bottom end of the threaded sleeve (213); a second adjusting thread (221) for cooperating with an adjusting nut (212) to lock the threaded sleeve (213) is screwed onto the rod body of the second connecting rod (222); a clamping block (223) for clamping into the coupling is fixedly mounted on the bottom end of the second connecting rod (222).

6. A coupling removal tool according to claim 1, characterized in that: A through slot (101) for placing a connection assembly (320) is provided at the top of the special pull plate (100), and a handle (102) for pulling the special pull plate (100) is fixedly mounted at the top of the special pull plate (100), and there are two handles (102).

Images