Clamp spring dismounting tool

Abstract

The utility model discloses a clamp spring dismounting tool which comprises a bottom plate, a blocking seat, a mounting seat and a dismounting assembly, the blocking seat and the mounting seat are fixedly arranged at the two ends of the bottom plate respectively, and a mounting hole is formed in the surface of the mounting seat; the dismounting assembly comprises a first dismounting piece, a second dismounting piece, a rotating shaft and a fastening piece, the rotating shaft is hinged to the first dismounting piece and the second dismounting piece and penetrates through the mounting hole of the mounting base, a through hole is formed in the length direction of the rotating shaft in a penetrating mode, one end of the shaft is located and arranged in the through hole in a penetrating mode, and the other end of the shaft abuts against the blocking base; and sharp corner parts are formed at the end parts of the first dismounting piece and the second dismounting piece, and the sharp corner part of the first dismounting piece and the sharp corner part of the second dismounting piece are attached to each other and are clamped and embedded in the notch of the clamping spring. The dismounting tool has the advantages that the shaft is fixed through the dismounting tool, the clamp spring cannot be separated from the dismounting tool when the clamp spring is dismounted, and the dismounting efficiency is high.

Description

Technical Field

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

[0002] The steps and requirements for replacing the shaft of the switch built-in starter, any operation and quality control must be based on this technical requirement. Figure 1 As shown, the shaft outer shell is provided with a retaining ring, a retaining ring and a base. When replacing the shaft, the retaining ring, the retaining ring, the return spring and the base arranged on the outer periphery of the shaft need to be removed first. When replacing the shaft, only the retaining ring needs to be removed, and the retaining ring and the base can be easily removed. The retaining ring arranged on the outer periphery of the shaft has a notch.

[0003] The existing disassembly tool for disassembling the retaining spring includes a first disassembly pliers and a second disassembly pliers which are hinged to each other. When disassembling, the end corners of the first disassembly pliers and the second disassembly pliers are inserted into the notch of the retaining spring, and the ends of the first disassembly pliers and the second disassembly pliers away from the end corners are moved to both sides to remove the retaining spring from the shaft. However, when the existing disassembly tool is used to disassemble the shaft, the retaining spring and the disassembly tool are easily separated, which brings great inconvenience to the disassembly of the retaining spring, and improvements are needed. Utility Model Content

[0004] The utility model aims to provide a shaft retaining spring disassembly tool which can prevent the retaining spring from being separated from the disassembly tool when the retaining spring is disassembled and has high disassembly efficiency.

[0005] The utility model proposes a retaining spring disassembly tool, the retaining spring has a notch and is sleeved on the periphery of the shaft. The disassembly tool comprises a base plate, a stopper, a mounting seat and a disassembly assembly, the stopper and the mounting seat are respectively fixedly arranged at two ends of the base plate, and a mounting hole is opened on the surface of the mounting seat; the disassembly assembly comprises a first disassembly member, a second disassembly member, a rotating shaft and a fastener, the rotating shaft is respectively hinged to the first disassembly member and the second disassembly member and passes through the mounting hole of the mounting seat, the fastener and the rotating shaft are fixedly connected and tightly abutted against the surface of the mounting seat, a through hole is opened along the length direction of the rotating shaft, one end of the shaft is positioned and passed through the through hole, the retaining spring abuts against the end of the rotating shaft, and the other end of the shaft abuts against the stopper; the ends of the first disassembly member and the second disassembly member are both formed with sharp corners, the sharp corners of the first disassembly member and the sharp corners of the second disassembly member are fitted and both are embedded in the notch of the retaining spring.

[0006] Preferably, the first disassembly part includes a first swing arm and a first clip, the second disassembly part includes a second swing arm and a second clip, the pointed corners are respectively located at the bottom end of the first clip and the bottom end of the second clip, and the first clip and the first swing arm, as well as the second clip and the second swing arm are fixed by bolts.

[0007] Preferably, the included angle portion is triangular in shape, the included angle of the pointed portion is set to "A", and A < 60 degrees is satisfied.

[0008] Preferably, a first hinge hole is formed at the bottom end of the surface of the first swing arm. A second hinge hole and a receiving groove are concentrically formed at the bottom end of the surface of the first swing arm. The diameter of the receiving groove is larger than the diameter of the second hinge hole. One end of the rotating shaft is provided with a limiting portion. The rotating shaft is inserted into the mounting hole, the first hinge hole and the second hinge hole and is fixedly installed with a fastening member. The limiting portion is clamped in the receiving groove.

[0009] Preferably, positioning platforms are provided at the upper ends of the surfaces of the first swing arm and the second swing arm. The top end of the first clamping piece abuts against the bottom end of the positioning platform on the first swing arm, and the top end of the second clamping piece abuts against the bottom end of the positioning platform on the second swing arm.

[0010] Preferably, handles are vertically and fixedly provided at the tops of the first swing arm and the second swing arm respectively.

[0011] Preferably, the retaining seat includes a base and a baffle. The base is fixedly provided on the bottom plate. An installation groove is formed on the surface of the base. The baffle is clamped in the installation groove. A first fixing hole is formed on the surface of the base. A second fixing hole is formed on the surface of the baffle. A fixing bolt is inserted through the first fixing hole and the second fixing hole.

[0012] Preferably, the bottom end of the baffle is semi-circular in shape.

[0013] Preferably, a limiting screw hole is formed on the surface of the base. The limiting screw hole is located above one side of the first fixing hole. A limiting bolt is screwed into the limiting screw hole.

[0014] Preferably, a plurality of permanent magnets are provided on the surface of the bottom plate.

[0015] As can be seen from the above description of the present invention, the present invention has the following beneficial effects:

[0016] 1. The shaft is fixed by the disassembly tooling. One end of the shaft is positioned and inserted into the through hole. The snap ring abuts against the end of the rotating shaft. The other end of the shaft abuts tightly against the retaining seat. When disassembling the snap ring, the snap ring will not disengage from the disassembly tooling, and the disassembly efficiency is relatively high.

[0017] 2. Positioning platforms are provided at the upper ends of the surfaces of the first swing arm and the second swing arm. The top end of the first clamping piece abuts against the bottom end of the positioning platform on the first swing arm, and the top end of the second clamping piece abuts against the bottom end of the positioning platform on the second swing arm, so that the first clamping piece and the second clamping piece are accurately positioned and installed.

[0018] 3. The retaining seat is configured to include a base and a baffle, and the baffle is hinged to the base. When installing or removing the shaft, the baffle can be rotated by adjusting the fixing bolt, which facilitates the installation and removal of the shaft. Description of the Drawings

[0019] Figure 1 is a schematic structural view of the shaft, snap ring, retaining ring and base in the embodiment;

[0020] Figure 2 is a schematic overall structural view of a snap ring disassembly tool in the embodiment;

[0021] Figure 3 is a schematic structural view of the shaft installation in the embodiment;

[0022] Figure 4 is a side view of a snap ring disassembly tool in the embodiment;

[0023] Figure 5 is a side view of the shaft installation in the embodiment;

[0024] Figure 6 is a front view of the mounting seat in the embodiment;

[0025] Figure 7 is a cross-sectional view of the rotating shaft in the embodiment;

[0026] Figure 8 is a front view of the first swing arm in the embodiment;

[0027] Figure 9 is a front view of the second swing arm in the embodiment;

[0028] Figure 10 is a schematic partial structural view of a snap ring disassembly tool in the embodiment;

[0029] Figure 11 is a front view of the first disassembly part and the second disassembly part in the embodiment;

[0030] Figure 12 is a schematic structural view of the retaining seat in the embodiment;

[0031] Figure 13 is a front view of the base in the embodiment;

[0032] Figure 14 is a side view of the base in the embodiment;

[0033] Figure 15 is a front view of the baffle in the embodiment.

[0034] Reference numerals: 1, base plate; 2, retaining seat; 21, base; 211, mounting groove; 212, first fixing hole; 213, fixing bolt; 214, limiting screw hole; 215, limiting bolt; 22, baffle; 221, second fixing hole; 3, mounting seat; 31, mounting hole; 4, disassembly component; 41, first disassembly part; 411, first swing arm; 4111, first hinge hole; 412, first clamping piece; 413, sharp corner part; 414, positioning table; 415, handle; 42, second disassembly part; 421, second swing arm; 4211, second hinge hole; 4212, receiving groove; 422, second clamping piece; 43, rotating shaft; 431, through hole; 432, limiting part; 44, fastener; 5, permanent magnet; 6, shaft; 7, circlip; 8, retaining ring; 9, base. Detailed implementation manners

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the following further describes the present utility model in detail with reference to the Figure 2 - 15 accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0036] Refer to Figures 2 - 7 , a circlip disassembly tooling, including a base plate 1, a retaining seat 2, a mounting seat 3, a disassembly component 4 and a plurality of permanent magnets 5. The retaining seat 2 and the mounting seat 3 are respectively fixedly arranged at both ends on the surface of the base plate 1, and the plurality of permanent magnets 5 are evenly distributed on the surface of the base plate 1. The circlip 7 is disassembled from the shaft 6 by this disassembly tooling, and the plurality of permanent magnets 5 adsorb the disassembled circlip 7 to prevent the disassembled circlip 7 from being lost.

[0037] This disassembly tooling can be applicable to the disassembly of the circlip 7 on the one-way clutch shaft, or the disassembly of the circlip 7 on the motor rotor shaft, or the disassembly of the circlip 7 on the planetary shaft. The disassembly component 4 is installed on the mounting seat 3. The disassembly component 4 includes a first disassembly part 41, a second disassembly part 42, a rotating shaft 43 and a fastener 44. A mounting hole 31 is formed on the surface of the mounting seat 3. When installing the disassembly component 4, the rotating shaft 43 is respectively hinged to the first disassembly part 41 and the second disassembly part 42, and the rotating shaft 43 is passed through the mounting hole 31 and then locked and fixed to the fastener 44. A through hole 431 is formed through the rotating shaft 43 along the length direction thereof. When installing the shaft 6, one end of the shaft 6 is passed into the through hole 431, the circlip 7 abuts against the end of the rotating shaft 43, and the other end of the shaft 6 abuts tightly against the retaining seat 2, so that the shaft 6 is kept in a stable position to prevent the circlip 7 from being disengaged from the disassembly tooling during disassembly.

[0038] Refer to Figure 3 , Figure 4 , Figure 8 andFigure 9 Among them, the first disassembly part 41 includes a first swing arm 411 and a first clamping piece 412, and the second disassembly part 42 includes a second swing arm 421 and a second clamping piece 422. The first clamping piece 412 is fixedly installed on the first swing arm 411, and the second clamping piece 422 is fixedly installed on the second swing arm 421. In order to enable the first swing arm 411 and the second swing arm 421 to be respectively hinged to the rotating shaft 43, a first hinge hole 4111 is formed by opening at the bottom end of the first swing arm 411, and a second hinge hole 4211 is formed by opening at the bottom end of the second swing arm 421. The first swing arm 411 is abutted against the mounting seat 3, the bottom end surface of the second swing arm 421 is abutted against the bottom end surface of the first swing arm 411, and the first hinge hole 4111 and the second hinge hole 4211 are made to correspond to each other. A limiting part 432 is formed at one end of the rotating shaft 43. The rotating shaft 43 is sequentially passed through the first hinge hole 4111, the second hinge hole 4211 and the mounting hole 31, and the rotating shaft 43 is locked and fixed with the fastener 44, so that the limiting part 432 is abutted tightly against the second swing arm 421, and the fastener 44 is abutted tightly against the surface of the mounting seat 3. Thus, the first swing arm 411 and the second swing arm 421 are limited between the limiting part 432 and the mounting seat 3. The fastener 44 can be set as a nut to facilitate the installation and disassembly between the fastener 44 and the rotating shaft 43.

[0039] Refer to Figure 2 and Figure 9 In addition, in order to prevent the limiting part 432 from interfering with the first clamping piece 412 and the second clamping piece 422, a receiving groove 4212 is formed by opening on the surface of the second swing arm 421. The receiving groove 4212 is concentrically arranged with the second hinge hole 4211, and the diameter dimension of the formed receiving groove 4212 is slightly larger than the diameter dimension of the limiting part 432. After the fastener 44 is locked and fixed with the rotating shaft 43, the limiting part 432 is clamped in the receiving groove 4212.

[0040] Refer to Figure 2 and Figure 3 In order to accurately install the positions of the first clamping piece 412 on the first swing arm 411 and the second clamping piece 422 on the second swing arm 421, positioning platforms 414 are fixedly arranged at the top ends of the surfaces of the first swing arm 411 and the second swing arm 421. The surface of the first clamping piece 412 is abutted against the surface of the first swing arm 411, the top end of the first clamping piece 412 is abutted against the bottom end of the positioning platform 414 and is locked and fixed by bolts; the surface of the second clamping piece 422 is abutted against the surface of the second swing arm 421, the top end of the second clamping piece 422 is abutted against the bottom end of the positioning platform 414 and is locked and fixed by bolts. The first clamping piece 412 and the second clamping piece 422 are respectively locked and fixed with the first swing arm 411 and the second swing arm 421 by bolts, so as to facilitate the disassembly and replacement of the first clamping piece 412 and the second clamping piece 422 to adapt to the disassembly of different types of snap rings 7.

[0041] Referring to Figure 10 and Figure 11 ,At the bottom ends of the first clip 412 and the second clip 422, pointed corners 413 are formed by opening. The formed pointed corners 413 are triangular in shape. When disassembling the gear on the shaft 6, the pointed corners 413 at the bottom ends of the first clip 412 and the second clip 422 are clamped into the notch of the snap ring 7, and the first swing arm 411 and the second swing arm 421 are rotated in opposite directions to disassemble the snap ring 7 from the planetary gear shaft 6. In order to enable the disassembly tooling to have a good disassembly effect on the snap ring 7, the included angle of the pointed corner 413 is set to "A", and the included angle of the pointed corner 413 satisfies A < 60 degrees. In this way, when the pointed corner 413 of the first clip 412 and the pointed corner 413 of the second clip 422 are clamped into the notch of the snap ring 7, they have a deeper clamping depth; when the first swing arm 411 and the second swing arm 421 are rotated in opposite directions, it has a better disassembly effect on the snap ring 7. In addition, in order to facilitate the flipping of the first swing arm 411 and the second swing arm 421, handles 415 are respectively and fixedly arranged at the top ends of the first swing arm 411 and the second swing arm 421, so as to make the disassembly of the snap ring 7 on the shaft 6 more labor-saving.

[0042] Referring to Figures 12 - 15 ,The retaining seat 2 is set to include a base 21 and a baffle 22. An installation groove 211 is vertically formed on the surface of the base 21, and the baffle 22 is installed in the installation groove 211 and is rotatably connected to the base 21. To achieve the rotational connection between the baffle 22 and the base 21, a first fixing hole 212 is formed on the surface of the base 21, and a second fixing hole 221 is formed on the surface of the baffle 22. After the baffle 22 is clamped in the installation groove 211, the first fixing hole 212 and the second fixing hole 221 are made to correspond to each other, and a fixing bolt 213 is inserted through the first fixing hole 212 and the second fixing hole 221, so as to achieve the hinge connection between the baffle 22 and the base 21.

[0043] The baffle 22 can be flipped along the base 21. One end of the shaft 6 is inserted into the through hole 431 of the rotating shaft 43, and the snap ring 7 abuts against the end of the rotating shaft 43. The baffle 22 is flipped along the installation groove 211 until the other end of the shaft 6 abuts against the baffle 22, so as to horizontally fix the shaft 6 on the disassembly tooling. After the shaft 6 is horizontally fixedly installed, the notch of the snap ring 7 corresponds to the pointed corner 413 of the first clip 412 and the pointed corner 413 of the second clip 422, and the pointed corner 413 of the first clip 412 and the pointed corner 413 of the second clip 422 are clamped into the notch of the snap ring 7, and the first swing arm 411 and the second swing arm 421 are rotated in opposite directions to disassemble the snap ring 7 from the shaft 6.

[0044] To facilitate the flipping of the baffle 22, the bottom end of the baffle 22 is set to a semi-circular shape to avoid interference of the bottom plate 1 with the flipping of the baffle 22. The baffle 22 is hinged to the base 21 to facilitate the installation and removal of the shaft 6 between the fastener 44 and the retaining seat 2. When the shaft 6 is fixedly arranged between the fastener 44 and the baffle 22, in order to prevent the shaft 6 from falling off due to excessive flipping of the baffle 22, a limit screw hole 214 is formed by opening on the surface of the base 21. The limit screw hole 214 is located above one side of the first fixing hole 212, and a limit bolt 215 is screwed into the limit screw hole 214. One side of the baffle 22 can abut against the limit bolt 215. The setting of the limit bolt 215 plays a role in limiting the baffle 22, so that one end of the shaft 6 can abut stably against the baffle 22. After the snap ring 7 is completely removed from the shaft 6, loosen the fixing bolt 213 to rotate the baffle 22 along one side of the base 21, so as to facilitate the removal of the shaft 6 from the disassembly tooling.

[0045] The specific implementation principle of the embodiment of the present application is as follows: When it is necessary to remove the snap ring 7 from the shaft 6, select the first clip 412 and the second clip 422 corresponding to the model of the snap ring 7 to be removed. Bolt-lock the first clip 412 and fixedly arrange it on the first swing arm 411, and bolt-lock the second clip 422 and fixedly arrange it on the second swing arm 421. Pass one end of the shaft 6 to be removed through the through hole 431 of the rotating shaft 43, so that the snap ring 7 abuts against the end of the rotating shaft 43, and rotate the baffle 22 along the base 21, so that the other end of the shaft 6 abuts against the baffle 22. Bolt-lock and fix the baffle 22 and the base 21 through the fixing bolt 213, so that the shaft 6 is horizontally fixedly arranged between the mounting seat 3 and the baffle 22. During installation, the limit bolt 215 plays a role in limiting the baffle 22 to prevent the baffle 22 from rotating excessively.

[0046] After the shaft 6 is horizontally fixedly installed between the fastener 44 and the baffle 22, the pointed corners 413 of the first clip 412 and the pointed corners 413 of the second clip 422 are engaged into the notch of the snap ring 7. Then, hold the handles 415 at the top of the first swing arm 411 and the handles 415 at the top of the second swing arm 421 with both hands respectively, and rotate the first swing arm 411 and the second swing arm 421 in opposite directions to remove the snap ring 7 from the shaft 6. A plurality of permanent magnets 5 on the surface of the bottom plate 1 attract the removed snap ring 7 to prevent the removed snap ring 7 from being lost. Finally, the fixing bolt 213 can be loosened, and the baffle 22 is rotated to the side away from the limit bolt 215 to remove the shaft 6 from the disassembly tooling.

[0047] The present utility model has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A retaining ring disassembly tool, wherein the retaining ring has a notch and is sleeved on the periphery of a shaft, characterized in that: The disassembly tool comprises a bottom plate, a stopper, a mounting seat and a disassembly assembly, wherein the stopper and the mounting seat are respectively fixedly arranged at two ends of the bottom plate, and a mounting hole is opened on the surface of the mounting seat; The disassembly assembly comprises a first disassembly member, a second disassembly member, a rotating shaft and a fastener, wherein the rotating shaft is hingedly connected to the first disassembly member and the second disassembly member respectively and passes through a mounting hole of a mounting seat, the fastener is fixedly connected to the rotating shaft and abuts against a surface of the mounting seat, a through hole is penetrated along the length direction of the rotating shaft, one end of the shaft is positioned and penetrated in the through hole, the retaining spring abuts against an end of the rotating shaft, and the other end of the shaft abuts against a stop seat; The ends of the first disassembly member and the second disassembly member are both formed with sharp corners, and the sharp corners of the first disassembly member and the second disassembly member are in contact with each other and are both embedded in the notch of the retaining spring.

2. The retaining spring removal tool according to claim 1, characterized in that: The first disassembly part includes a first swing arm and a first clip, the second disassembly part includes a second swing arm and a second clip, the pointed corners are respectively located at the bottom end of the first clip and the bottom end of the second clip, and the first clip and the first swing arm, as well as the second clip and the second swing arm are fixed by bolts.

3. The retaining spring removal tool according to claim 2, characterized in that: The pointed corner is in a triangular shape, and the included angle of the pointed corner is set to "A", and A<60 degrees.

4. The retaining spring removal tool according to claim 2, characterized in that: A first hinge hole is formed at the bottom end of the surface of the first swing arm, and a second hinge hole and a receiving groove are concentrically formed at the bottom end of the surface of the first swing arm. The diameter of the receiving groove is larger than the diameter of the second hinge hole. A limiting portion is formed at one end of the rotating shaft. The rotating shaft is inserted into the mounting hole, the first hinge hole and the second hinge hole and fixedly installed with a fastener, and the limiting portion is embedded in the receiving groove.

5. The retaining spring removal tool according to claim 2, characterized in that: Positioning platforms are arranged on the upper surfaces of the first swing arm and the second swing arm, the top end of the first clamp abuts against the bottom end of the positioning platform on the first swing arm, and the top end of the second clamp abuts against the bottom end of the positioning platform on the second swing arm.

6. The retaining spring removal tool according to claim 2, characterized in that: The top ends of the first swing arm and the second swing arm are respectively provided with handles vertically fixed thereon.

7. The retaining spring removal tool according to claim 2, characterized in that: The baffle seat includes a base and a baffle plate, the base is fixedly arranged on the bottom plate, a mounting groove is provided on the surface of the base, the baffle plate is embedded in the mounting groove, a first fixing hole is provided on the surface of the base, a second fixing hole is provided on the surface of the baffle plate, and fixing bolts are passed through the first fixing hole and the second fixing hole.

8. The retaining spring removal tool according to claim 7, characterized in that: The bottom end of the baffle is arranged in a semicircular shape.

9. The retaining spring removal tool according to claim 7, characterized in that: A limiting screw hole is formed on the surface of the base, the limiting screw hole is located above one side of the first fixing hole, and a limiting bolt is screwed into the limiting screw hole.

10. The retaining spring removal tool according to claim 1, characterized in that: A plurality of permanent magnets are arranged on the surface of the bottom plate.

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