Disassembling tool

Abstract

The utility model discloses a disassembling tool which comprises a first cover plate and at least two gears meshed in sequence, the transmission ratio of the at least two gears meshed in sequence is larger than 1, the first cover plate is arranged on a primary part, and the at least two gears are rotatably arranged on the first cover plate. The power output wheel in the at least two gears is connected with the secondary part, so that when the secondary part hole shields the bolt, the power output wheel finally drives the secondary part to rotate relative to the primary part by rotating the driving wheel in the at least two gears, and then the secondary part and the primary part are screwed to the initial assembly position; due to the fact that the transmission ratio between the at least two gears is larger than 1, the function of reducing torque is achieved, the situation that a crankshaft transmission system is damaged due to direct disassembly and overlarge torque borne by a shaft system is avoided, and the crankshaft transmission system is convenient to use, saves labor, can be suitable for shock absorbers of different structures and is high in generalization degree.

Description

Technical Field

[0001] The utility model relates to the technical field of engine assembly, in particular to a disassembly tooling. Background Technique

[0002] With the development of hybrid vehicles, the calibration measurement of the vehicle's transmission system and the calibration method of the engine are more mature and reliable, and torque limiters are widely used in hybrid engines. The torque limiter can reduce the torsional stiffness of the transmission system, lower the natural frequency of torsional vibration of the transmission system, and thus reduce the torsional vibration of the transmission system.

[0003] With the development of torque limiter technology and the optimization of the process, at present, some vehicle manufacturers have mass-produced and used integrated torque limiter assemblies, which have lower costs compared to split structures and reduce assembly costs.

[0004] The structure of the integrated torque limiter assembly is divided into a primary part and a secondary part. The secondary part is the driven disk, and the rest is the primary part. During the actual operation of the engine, when the torque of the engine is transmitted to the torque limiter after being attenuated and fluctuated by the spring and exceeds the clamping torque, the driven disk of the integrated torque limiter assembly will slip relative to the primary part, causing the bolt through-holes on the driven disk to be misaligned with the bolts, resulting in the bolts on the driven disk that block the shock absorber (the bolts are used to connect the crankshaft and the torque limiter assembly), and further causing the bolts of the shock absorber to be unable to be tightened by a torque wrench during after-sales disassembly. Therefore, it is necessary to use a tooling to screw the driven disk and the primary part to the initial assembly position, so as to screw the bolts for disassembly.

[0005] For the integrated torque limiter, the conventional disassembly tooling is as follows: Since the primary and secondary parts of the torque limiter will produce relative slip during the operation of the whole engine, and the slip torque is about 250 - 550 N·M, which is a large torque and cannot be disassembled with an ordinary torque wrench. And directly tightening the secondary driven disk, the shock absorber pulley bolts and the shock absorber pulley at the front end of the crankshaft system cannot withstand this torque. Therefore, a mandrel adapter that matches the secondary driven disk needs to be inserted into the shock absorber, and then a wrench with a very long lever arm (more than 1.5 M) is used, and a tooling for fixing the wrench is also required. In addition, a position for fixing the wrench needs to be opened on the shock absorber. This kind of tooling scheme is complex, costly, laborious to tighten, and limited by the structure of the shock absorber. Different shock absorber structures are different, and the tooling needs to be designed for matching, with low generalization degree, and the excessive torque borne by the shafting is likely to cause damage to the crankshaft transmission system. Content of the Utility Model

[0006] The purpose of the utility model is to provide a disassembly tooling, aiming to solve the technical problem that when the disassembly tooling disassembles the integrated torque limiter, the excessive torque borne by the shafting is likely to cause damage to the crankshaft transmission system.

[0007] To solve the above problems, according to one aspect of the present application, an embodiment of the present utility model provides a disassembly tooling for disassembling an integrated torque limiter. The integrated torque limiter includes a primary part and a secondary part that are coaxially arranged and rotatable relative to each other. The disassembly tooling includes a first cover plate and at least two gears that are sequentially meshed. The transmission ratio between at least two sequentially meshed gears is greater than 1. The first cover plate is disposed on the primary part, and at least two gears are rotatably arranged on the first cover plate. The power output wheel among at least two gears is connected to the secondary part so that when the driving wheel among at least two gears is rotated, the power output wheel can drive the secondary part to rotate relative to the primary part.

[0008] In some embodiments, the transmission ratio between at least two sequentially meshed gears is greater than 3 and less than 5.

[0009] In some embodiments, the diameter of the secondary part is smaller than that of the primary part. At least two first insertion holes are formed on at least one radial side of the primary part where the secondary part is located. The first cover plate is provided with first insertion members that are respectively inserted into at least two first insertion holes in a one-to-one correspondence.

[0010] In some embodiments, at least two of the first insertion members are evenly distributed in the axial direction of the primary part.

[0011] In some embodiments, the rotating shaft of the power output wheel is coaxial with the secondary part. The power output wheel is provided with a second insertion member, and a second insertion hole corresponding to the second insertion member is formed on the secondary part.

[0012] In some embodiments, there are at least two second insertion members. The number of the second insertion holes is the same as that of the second insertion members, and the two are inserted in a one-to-one correspondence.

[0013] In some embodiments, the disassembly tooling further includes a first locking member. The power output wheel is provided with a shaft hole, and the first cover plate is provided with a first through hole coaxial with the primary part. The first locking member rotatably locks the power output wheel to the first cover plate through the first through hole and the shaft hole.

[0014] In some embodiments, the rotating shaft inserted into the second through hole extends to the side of the first cover plate away from the second cover plate, and the outer periphery is configured with a rotation cooperation portion that cooperates with a rotating tool.

[0015] In some embodiments, the disassembly tooling further includes a second cover plate, which is disposed on the side of the first cover plate facing the primary part. The first cover plate is provided with a second through hole, and the second cover plate is provided with a third through hole. Axial ends of the driving wheel have rotating shafts respectively inserted into the second through hole and the third through hole. One end of one of at least two first plug-in members is inserted into the second cover plate, and the other end is inserted into the corresponding first plug-in hole.

[0016] In some embodiments, the disassembly tooling further includes a third cover plate, which is disposed on the side of the first cover plate facing the primary part. One end of another one of at least two first plug-in members is inserted into the third cover plate, and the other end is inserted into the corresponding first plug-in hole.

[0017] Compared with the prior art, the disassembly tooling of the present utility model has at least the following beneficial effects:

[0018] The embodiment of the present utility model discloses a disassembly tooling, which is specifically used for disassembling an integrated torque limiter. The integrated torque limiter includes a primary part and a secondary part that are coaxially arranged and can rotate relative to each other. The disassembly tooling includes a first cover plate and at least two meshing gears in sequence. The transmission ratio between at least two gears is greater than 1. The first cover plate is disposed on the primary part, and at least two gears are rotatably arranged on the first cover plate. A power output wheel among at least two gears is connected to the secondary part. Therefore, during the actual operation of the engine, when the torque transmitted to the torque limiter after the engine torque decays and fluctuates through the spring exceeds the clamping torque, the secondary part (driven disk) of the integrated torque limiter and the primary part will slip, causing the bolt in the first through hole to be misaligned with the second through hole, resulting in the hole of the secondary part covering the bolt. By rotating the driving wheel among at least two gears, when the driving wheel rotates, it drives other gears among at least two gears to rotate. Finally, the power output wheel drives the secondary part to rotate relative to the primary part, and then the secondary part (driven disk) and the primary part are screwed to the initial assembly position, so as to unscrew the bolt for disassembly. Since the transmission ratio between at least two gears of the present utility model is greater than 1, a set of gears is used for meshing in the present utility model. By using the existing space of the torque limiter, a suitable transmission ratio of a set of gears is designed to achieve the function of reducing torque, avoiding direct disassembly, and the excessive torque borne by the shafting system, which is convenient and labor-saving to use, can be applied to different structure dampers, and has a high degree of generalization.

[0019] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present utility model and combines with the drawings to describe in detail as follows. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Structural diagram of the disassembly tooling provided by the embodiment of the present utility model installed on the integrated torque limiter;

[0022] Figure 2 Exploded structural schematic diagram of the disassembly tooling and the integrated torque limiter provided by the embodiment of the present utility model;

[0023] Figure 3 Exploded structural schematic diagram of the disassembly tooling and the integrated torque limiter from another perspective provided by the embodiment of the present utility model;

[0024] Figure 4 Exploded structural schematic diagram of the disassembly tooling provided by the embodiment of the present utility model;

[0025] Figure 5 Structural schematic diagram when the bolt in the first through hole of the integrated torque limiter coincides with the second through hole;

[0026] Figure 6 Structural schematic diagram when the bolt in the first through hole of the integrated torque limiter is offset from the second through hole;

[0027] Figure 7 Exploded structural schematic diagram of the integrated torque limiter.

[0028] Description of the reference numerals:

[0029] 1. Integrated torque limiter; 11. Primary part; 111. First insertion hole; 112. First through hole; 12. Secondary part; 121. Second insertion hole; 122. Second through hole; 13. Bolt; 14. Crankshaft;

[0030] 2. First cover plate; 21. First through hole; 22. Second through hole;

[0031] 3. Power output wheel; 32. Axle hole;

[0032] 4. Driving wheel; 41. Rotating shaft; 411. Rotating mating part;

[0033] 51. First insertion part; 52. Second insertion part;

[0034] 6. The first locking member;

[0035] 7. The second cover plate; 71. The third through hole;

[0036] 8. The third cover plate. Detailed implementation manners

[0037] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the application according to the present utility model. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0038] In the description of the present utility model, it should be clear that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects and do not have to be used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present utility model, rather than meaning that the indicated device or element must have a specific orientation or position, so it cannot be understood as a limitation to the present utility model.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Figures 5 - 7As shown in the figure, there is an integrated torque limiter 1. The integrated torque limiter 1 includes a primary part 11 and a secondary part 12 (driven disk). A plurality of first through holes 112 are formed in the primary part 11, and a plurality of second through holes 122 corresponding to the plurality of first through holes 112 one by one are formed in the secondary part 12. When installing the primary part 11 and the crankshaft 14, they are locked with the crankshaft 14 through bolts 13 and via the second through holes 122 and the first through holes 112. The second through holes 122 are only avoidance holes during installation. During the actual operation of the engine, when the torque of the engine is transmitted to the torque limiter after attenuation and fluctuation by the spring and exceeds the clamping torque, the secondary part 12 (driven disk) of the integrated torque limiter 1 will slip relative to the primary part 11, causing the bolts 13 in the first through holes 112 to be misaligned with the second through holes 122, resulting in the holes of the secondary part 12 covering the bolts 13, and further causing the torque wrench to be unable to wrench the bolts 13 during after-sales disassembly. Therefore, a tooling is needed to screw the secondary part 12 (driven disk) and the primary part 11 to the initial assembly position, so as to screw the bolts 13 for disassembly. Since the secondary part 12 (driven disk) and the primary part 11 of the integrated torque limiter 1 will slip during the operation of the whole engine, the slip torque is about 250 - 550 N·M, which is very large. Ordinary torque wrenches cannot be used for disassembly, and directly wrenching the secondary part 12 (driven disk), the damper pulley bolt and the damper pulley at the front end of the crankshaft system cannot withstand this torque. Therefore, a mandrel adapter matching the secondary driven disk needs to be introduced into the damper, and then a wrench with a very long lever arm (more than 1.5 M) is used, and a tooling for fixing the wrench is also needed. In addition, a position for fixing the wrench needs to be opened on the damper. This kind of tooling scheme is complex, costly, laborious to wrench, and limited by the structure of the damper. Different dampers have different structures, and the tooling needs to be designed for matching, with low generalization degree.

[0041] Embodiment 1

[0042] As Figures 1 - 4 As shown in the figure, an embodiment of the present invention provides a disassembly tooling for disassembling the integrated torque limiter 1. The integrated torque limiter 1 includes a primary part 11 and a secondary part 12 that are coaxially arranged and can rotate relative to each other. The disassembly tooling includes a first cover plate 2 and at least two gears that are meshed in sequence. The transmission ratio between at least two gears meshed in sequence is greater than 1. The first cover plate 2 is arranged on the primary part 11, and at least two gears are rotatably arranged on the first cover plate 2. The power output wheel 3 among at least two gears is connected to the secondary part 12, so that when the driving wheel 4 among at least two gears is rotated, the power output wheel 3 can drive the secondary part 12 to rotate relative to the primary part 11.

[0043] In this embodiment, the disassembly tooling is specifically used for the disassembly of the integrated torque limiter 1. The integrated torque limiter 1 includes a primary part 11 and a secondary part 12 that are coaxially arranged and rotatable relative to each other. The disassembly tooling includes a first cover plate 2 and at least two sequentially meshing gears. The transmission ratio between at least two sequentially meshing gears is greater than 1. The first cover plate 2 is disposed on the primary part 11. At least two gears are rotatably disposed on the first cover plate 2, and the axial spacing of at least two gears is limited. The power output wheel 3 among at least two gears is connected to the secondary part 12. Therefore, during the actual operation of the engine, when the torque transmitted to the torque limiter after the engine torque fluctuates through spring attenuation exceeds the clamping torque, the secondary part 12 (driven disk) of the integrated torque limiter 1 will slip relative to the primary part 11, causing the bolt 13 in the first through hole 112 to be misaligned with the second through hole 122, resulting in the hole of the secondary part 12 covering the bolt 13. By rotating the driving wheel 4 among at least two gears, when the driving wheel 4 rotates, it drives the other gears among at least two gears to rotate. Finally, the power output wheel 3 drives the secondary part 12 to rotate relative to the primary part 11, and then the secondary part 12 (driven disk) and the primary part 11 are screwed to the initial assembly position, so as to unscrew the bolt 13 for disassembly. Since the transmission ratio between at least two gears in this embodiment is greater than 1, a set of gears is engaged in this embodiment. By using the existing space of the torque limiter, a suitable transmission ratio of a set of gears is designed to achieve the function of reducing torque, avoiding direct disassembly and excessive torque on the shafting, which may cause damage to the crankshaft 14 transmission system. It is convenient and labor-saving to use and can be applied to different structural dampers with a high degree of generalization.

[0044] In some embodiments, the transmission ratio between at least two sequentially meshing gears is greater than 3 and less than 5, and the transmission ratio range is about 3 - 5. The slip torque of about 550 N·M can be reduced to about 137.5 - 183 N·M, which plays a role in reducing the tightening torque.

[0045] In some embodiments, the disassembly tooling further includes a first locking member 6. The power output wheel 3 is provided with a shaft hole 32. The first cover plate 2 is provided with a first through hole 21 coaxial with the primary part 11. The first locking member 6 rotatably locks the power output wheel 3 to the first cover plate 2 via the first through hole 21 and the shaft hole 32.

[0046] In this embodiment, by providing a shaft hole 32 in the power output wheel 3 and a first through hole 21 coaxial with the primary part 11 in the first cover plate 2, when assembling the disassembly tooling, the power output wheel 3 is rotatably locked to the first cover plate 2 via the first through hole 21 and the shaft hole 32 by the first locking member 6, realizing the assembly of the power output wheel 3 and the first cover plate 2. This structure is simple and reliable, facilitating the assembly of the disassembly tooling.

[0047] In some embodiments, the diameter of the secondary part 12 is smaller than that of the primary part 11. At least two first insertion holes 111 are provided on the primary part 11 at at least one radial side of the secondary part 12. First insertion members 51 are provided on the first cover plate 2 and are respectively inserted into the at least two first insertion holes 111 in a one-to-one correspondence.

[0048] In this embodiment, by providing at least two first insertion holes 111 on the primary part 11 at at least one radial side of the secondary part 12. Specifically, the at least two first insertion holes 111 can be located on both radial sides of the secondary part 12 on the primary part 11. Since the first insertion members 51 are provided on the first cover plate 2 and are respectively inserted into the at least two first insertion holes 111 in a one-to-one correspondence, the first cover plate 2 is fixed on the first cover plate 2. That is, the axes of the first cover plate 2 and the at least two gears are relatively stationary with respect to the primary part 11. When the driving wheel 4 of the at least two gears rotates, the positions between the axes of the first cover plate 2 and the at least two gears and the primary part 11 remain unchanged. The driving wheel 4 rotates to drive the other gears of the at least two gears to rotate. Finally, the power output wheel 3 can be driven to rotate the secondary part 12 relative to the primary part 11, and then the secondary part 12 (driven disk) and the primary part 11 can be screwed to the initial assembly position.

[0049] By inserting the first insertion holes 111 and the first insertion members 51, the first cover plate 2 can be quickly installed on the primary part 11, which is convenient for the assembly and disassembly between the disassembly tooling and the integrated torque limiter 1.

[0050] In some embodiments, the rotating shaft of the power output wheel 3 is coaxial with the secondary part 12. A second insertion member 52 is provided on the power output wheel 3, and a second insertion hole 121 corresponding to the second insertion member 52 is provided on the secondary part 12.

[0051] In this embodiment, since the rotating shaft of the power output wheel 3 is coaxial with the secondary part 12, the power output wheel 3 and the secondary part 12 can rotate coaxially. In this embodiment, by providing a second insertion member 52 on the power output wheel 3 and a second insertion hole 121 corresponding to the second insertion member 52 on the secondary part 12, the second insertion member 52 and the second insertion hole 121 are used to achieve the quick assembly of the power output wheel 3 and the secondary part 12, which is convenient for the assembly and disassembly between the disassembly tooling and the integrated torque limiter 1.

[0052] In some embodiments, there are at least two second insertion members 52, the number of the second insertion holes 121 is the same as that of the second insertion members 52, and the two are inserted in a one-to-one correspondence.

[0053] In this embodiment, by providing at least two second insertion members 52 and the same number of second insertion holes 121 as that of the second insertion members 52, and making them inserted into each other in a one-to-one correspondence, the accuracy of the power output wheel 3 assembled with the secondary part 12 and the stability of the transmission are ensured.

[0054] In some embodiments, at least two of the second insertion members 52 are evenly distributed in the circumferential direction of the power output wheel 3.

[0055] In this embodiment, at least two second insertion members 52 are evenly distributed in the circumferential direction of the power output wheel 3, ensuring the stability of the transmission between the power output wheel 3 and the secondary part 12.

[0056] In some embodiments, the rotating shaft 41 inserted into the second through hole 22 extends to the side of the first cover plate 2 away from the second cover plate 7, and a rotation matching portion 411 cooperating with a rotating tool is formed on the outer circumference, avoiding the use of a long force arm wrench of non-standard parts and only requiring an ordinary wrench to achieve disassembly.

[0057] In some embodiments, the disassembly tooling further includes a second cover plate 7. The second cover plate 7 is disposed on the side of the first cover plate 2 facing the primary part 11. The first cover plate 2 is provided with a second through hole 22, and the second cover plate 7 is provided with a third through hole 71. Axial ends of the driving wheel 4 have rotating shafts 41 respectively inserted into the second through hole 22 and the third through hole 71. One end of one of the at least two first insertion members 51 is inserted into the second cover plate 7, and the other end is inserted into the corresponding first insertion hole 111.

[0058] In this embodiment, by disposing the second cover plate 7 on the side of the first cover plate 2 facing the primary part 11, the first cover plate 2 is provided with a second through hole 22, and the second cover plate 7 is provided with a third through hole 71. Axial ends of the driving wheel 4 have rotating shafts 41 respectively inserted into the second through hole 22 and the third through hole 71, realizing rotatably disposing the driving wheel 4 on the first cover plate 2. One end of one of the at least two first insertion members 51 is inserted into the second cover plate 7, and the other end is inserted into the corresponding first insertion hole 111. The second cover plate 7 and the first cover plate 2 can be connected by screws or the like. One end of one of the at least two first insertion members 51 is inserted into the second cover plate 7, and the other end is inserted into the corresponding first insertion hole 111, enabling the connection between one end of the first cover plate 2 and the primary part 11.

[0059] In some embodiments, the disassembly tooling further includes a third cover plate 8, the third cover plate 8 is disposed on a side of the first cover plate 2 facing the primary part 11, and one end of another one of at least two first plug-in members 51 is inserted into the third cover plate 8, and the other end is inserted into the corresponding first plug-in hole 111.

[0060] In this embodiment, by disposing the third cover plate 8 on a side of the first cover plate 2 facing the primary part 11, the third cover plate 8 and the first cover plate 2 can be connected by screws or the like. One end of another one of at least two first plug-in members 51 is inserted into the third cover plate 8, and the other end is inserted into the corresponding first plug-in hole 111, so that the other part of the first cover plate 2 is connected to the primary part 11.

[0061] In summary, those skilled in the art can clearly understand that for the convenience and brevity of description, the specific tooling processes of the above-described devices, apparatuses, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0062] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A disassembly tooling for disassembling an integrated torque limiter, the integrated torque limiter comprising a primary part (11) and a secondary part (12) which are coaxially and relatively rotatably arranged, characterized in that, The disassembly tooling includes a first cover plate (2) and at least two sequentially meshing gears, the transmission ratio between at least two sequentially meshing gears being greater than 1. The first cover plate (2) is disposed on the primary part (11), at least two of the gears are rotatably disposed on the first cover plate (2), and a power output wheel (3) among at least two of the gears is connected to the secondary part (12) so that when the driving wheel (4) among at least two of the gears is rotated, the power output wheel (3) can drive the secondary part (12) to rotate relative to the primary part (11).

2. The disassembly tooling according to claim 1, characterized in that, The transmission ratio between at least two sequentially meshing gears is greater than 3 and less than 5.

3. The disassembling tooling according to claim 1, wherein, The diameter of the secondary part (12) is smaller than the diameter of the primary part (11). At least two first insertion holes (111) are formed on at least one radial side of the primary part (11) where the secondary part (12) is located. First insertion members (51) respectively corresponding to and inserted into the at least two first insertion holes (111) are disposed on the first cover plate (2).

4. The disassembling tooling according to claim 3, wherein At least two of the first insertion members (51) are evenly distributed in the axial direction of the primary part (11).

5. The disassembling tooling according to claim 1, characterized in that The rotating shaft of the power output wheel (3) is coaxial with the secondary part (12). A second insertion member (52) is disposed on the power output wheel (3), and a second insertion hole (121) corresponding to and inserted with the second insertion member (52) is formed on the secondary part (12).

6. The disassembling tooling according to claim 5, characterized in that, There are at least two of the second insertion members (52). The number of the second insertion holes (121) is the same as the number of the second insertion members (52), and the two are inserted correspondingly one by one.

7. The disassembly tooling according to claim 1, wherein, The disassembly tooling further includes a first locking member (6). A shaft hole (32) is formed on the power output wheel (3), and a first through hole (21) coaxial with the primary part (11) is formed on the first cover plate (2). The first locking member (6) rotatably locks the power output wheel (3) to the first cover plate (2) via the first through hole (21) and the shaft hole (32).

8. The disassembly tooling according to claim 3, wherein The disassembly tooling further includes a second cover plate (7). The second cover plate (7) is disposed on the side of the first cover plate (2) facing the primary part (11). A second through hole (22) is formed on the first cover plate (2), and a third through hole (71) is formed on the second cover plate (7). Axial ends of the driving wheel (4) have rotating shafts (41) respectively inserted into the second through hole (22) and the third through hole (71). One end of one of the at least two first insertion members (51) is inserted into the second cover plate (7), and the other end is inserted into the corresponding first insertion hole (111).

9. The disassembling tooling according to claim 8, wherein The rotating shaft (41) inserted into the second through hole (22) extends to the side of the first cover plate (2) away from the second cover plate (7), and a rotation cooperation portion (411) cooperating with a rotating tool is formed on the outer periphery.

10. The disassembly tooling according to claim 3, wherein The disassembly tooling further includes a third cover plate (8), the third cover plate (8) is arranged on a side of the first cover plate (2) facing the primary part (11), one end of another one of at least two of the first insertion parts (51) is inserted into the third cover plate (8), and the other end is inserted into the corresponding first insertion hole (111).

Images