A gear disassembly and assembly jig

Abstract

The present invention belongs to the field of production maintenance equipment and discloses a gear disassembly and assembly fixture. The gear disassembly and assembly fixture includes a hoisting frame, a fixing mechanism, and a connecting component. The fixing mechanism is arranged at the lower end of the hoisting frame, and a receiving groove is arranged on the fixing mechanism. The receiving groove is used for partially receiving the gear. One end of the connecting component is connected to the fixing mechanism, and the other end passes through the gear weight reduction hole of the gear and is detachably connected to the gear. The hoisting frame is configured to jointly place the fixing mechanism, the connecting component, and the gear in the installation groove of the diesel engine frame, so that the gear is detachably connected to the end of the camshaft. The fixing mechanism and the connecting component cooperate to abut the gear against the inner wall of the receiving groove and fit as closely as possible, realizing the pressing and fixing of the gear, so that the gear does not shake when arranged in the receiving groove. The gear disassembly and assembly fixture has a simple structure, is convenient for disassembly and assembly, and improves work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of production maintenance equipment, and particularly to a gear disassembly and assembly jig. Background Art

[0002] Currently, an installation groove is provided on one side of the diesel engine frame close to the camshaft. The installation groove is used to accommodate a gear. After the gear is installed in the installation groove, the gear is fastened to the end of the camshaft by a gear bolt. When disassembling and assembling the gear in the diesel engine frame, a lifting rope is used in cooperation with manual operation for disassembly and assembly. The gear is lifted out or into the diesel engine frame from the side, and then the gear bolt is loosened or tightened manually to achieve the disassembly or installation of the gear. Although this disassembly and assembly method can disassemble and assemble the gear, since only the lifting rope is used to lift the gear, the gear is prone to shaking, tilting and flipping, causing the gear to collide with the diesel engine frame, resulting in scratches and damage to the gear, and it may also cause the gear to fall, which is likely to cause safety hazards. At the same time, the installation space for the gear in the diesel engine frame is narrow, the gear installation efficiency is low, and the labor intensity is high. Summary of the Invention

[0003] The purpose of the present invention is to provide a gear disassembly and assembly jig, which has a simple structure, is convenient for disassembly and assembly, and improves work efficiency.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A gear disassembly and assembly jig includes:

[0006] A lifting frame;

[0007] A fixing mechanism, which is arranged at the lower end of the lifting frame. A receiving groove is provided on the fixing mechanism, and the receiving groove is used to partially accommodate the gear;

[0008] A connecting component, one end of which is connected to the fixing mechanism, and the other end passes through a gear weight reduction hole of the gear and is detachably connected to the gear;

[0009] The lifting frame is configured to place the fixing mechanism, the connecting component and the gear together in the installation groove of the diesel engine frame, so that the gear is detachably connected to the end of the camshaft.

[0010] Preferably, the fixing mechanism includes side plates, the receiving groove is provided on the side plates, one side of the side plates is connected to the lifting frame, and the other side is connected to the connecting component.

[0011] Preferably, a plurality of connecting components are provided, and an included angle is formed between adjacent two connecting components.

[0012] Preferably, the connecting component includes a connecting arm. One end of the connecting arm is detachably connected to the side plate through a first connecting piece, and the other end is detachably connected to the gear weight reduction hole through a second connecting piece.

[0013] Preferably, the connecting component further includes a sleeve. The sleeve is inserted through the gear weight reduction hole, and the second connecting piece is inserted through the connecting arm and the sleeve, enabling the connecting arm to abut against the side of the gear.

[0014] Preferably, the fixing mechanism further includes a roller and a roller shaft. The roller shaft is inserted through the roller and connected to the side plate, enabling the roller to rotate relative to the roller shaft, and the roller can abut against the teeth of the gear.

[0015] Preferably, the roller is made of nylon material.

[0016] Preferably, a positioning block is provided on the side plate, and a positioning groove is provided on the positioning block. The positioning groove is clamped to the roller shaft.

[0017] Preferably, the number of the side plates is two. The two side plates are arranged parallel and facing each other, and a reinforcing member is provided between the two side plates.

[0018] Preferably, a lifting hole is provided on the lifting frame.

[0019] Advantages of the present invention:

[0020] A gear disassembly and assembly jig of the present invention has a fixing mechanism arranged at the lower end of a lifting frame. A receiving groove is provided on the fixing mechanism to accommodate part of the gear for limiting and avoiding the gear. If only the receiving groove is provided to accommodate the gear, the gear can shake in the receiving groove, which is inconvenient for subsequent installation work. Without damaging the existing structure of the gear and without setting redundant connection structures, one end of the connecting component is inserted through the gear weight reduction hole, enabling the gear weight reduction hole to be detachably connected to the connecting component, achieving the purpose of detachable connection between the connecting component and the gear. At the same time, the detachable connection has the advantages of convenient disassembly and assembly, low cost, and reusable. The other end of the connecting component is connected to the fixing mechanism. The fixing mechanism cooperates with the connecting component to abut the gear against the inner wall of the receiving groove and fit as closely as possible, realizing the pressing and fixing of the gear, so that the gear no longer shakes when arranged in the receiving groove, preventing the collision of the gear with the diesel engine frame during the installation of the gear and protecting the gear. During the installation process, the lifting frame is used to place the fixing mechanism, the connecting component, and the gear together in the installation groove of the diesel engine frame, enabling the gear to be detachably connected to the end of the camshaft to realize the installation of the gear.

[0021] Compared with the prior art which uses a suspension rope, the gear disassembly and assembly fixture of the present invention has a simple structure and is convenient for disassembly and assembly. By setting a fixing mechanism, the gear is limited and avoided; by setting a connecting component, the pressing and fixing of the gear are realized. The cooperation of the fixing mechanism and the connecting component makes the gear no longer shake when it is arranged in the accommodating groove, ensuring the operation safety and facilitating the subsequent installation work. Using the gear disassembly and assembly fixture of this embodiment not only saves installation time and labor, but also protects the personal safety of the installers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic diagram of a gear disassembly and assembly fixture and a gear assembly structure provided by an embodiment of the present invention;

[0023] Figure 2 FIG. 2 is a schematic diagram of a fixing mechanism and a connecting component of a gear disassembly and assembly fixture provided by an embodiment of the present invention.

[0024] In the figure:

[0025] 1. Lifting frame; 11. Hoisting hole;

[0026] 2. Fixing mechanism; 21. Side plate; 211. Positioning block; 212. Accommodating groove; 22. Roller; 221. Roller shaft; 23. Reinforcing member;

[0027] 3. Connecting component; 31. Connecting arm; 311. First connecting member; 312. Second connecting member; 32. Sleeve;

[0028] 4. Gear; 41. Gear weight reduction hole; 42. Gear mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of description, only some structures related to the present invention are shown in the drawings rather than all structures.

[0030] This embodiment discloses a gear disassembly and assembly fixture, which relates to the field of production maintenance equipment. As Figure 1As shown in the figure, the gear disassembly and assembly fixture includes a lifting frame 1, a fixing mechanism 2, and a connecting component 3. The lifting frame 1 is in an inverted L shape and is mainly used to support the weights of the fixing mechanism 2, the connecting component 3, and the gear 4. A lifting cross bar is provided at the upper end of the lifting frame 1 to facilitate lifting the fixing mechanism 2, the connecting component 3, and the gear 4. The fixing mechanism 2 is provided at the lower end of the lifting frame 1, and a receiving groove 212 is provided on the fixing mechanism 2. Since the gear 4 is in a cylindrical structure and the receiving groove 212 is an arc-shaped groove, the arc-shaped receiving groove 212 is adapted to the outer shape of the gear 4. Preferably, the central angle of the receiving groove 212 is 90°, which is used to partially receive the gear 4. One end of the connecting component 3 is connected to the fixing mechanism 2, and the other end passes through the gear weight reduction hole 41 of the gear 4 and is detachably connected to the gear 4. The lifting frame 1 is configured to place the fixing mechanism 2, the connecting component 3, and the gear 4 together in the installation groove of the diesel engine frame, so that the gear 4 is detachably connected to the end of the camshaft.

[0031] In a gear disassembly and assembly fixture of the present invention, by arranging the fixing mechanism 2 at the lower end of the lifting frame 1 and providing a receiving groove 212 on the fixing mechanism 2 to receive part of the gear 4, the gear 4 is limited and avoided. If only the receiving groove 212 is provided to receive the gear 4, the gear 4 can shake in the receiving groove 212, which is not convenient for subsequent installation work. Without damaging the existing structure of the gear 4 and without arranging redundant connection structures, one end of the connecting component 3 passes through the gear weight reduction hole 41, so that the gear weight reduction hole 31 is detachably connected to the connecting component 3, achieving the purpose of detachable connection between the connecting component 3 and the gear 4. At the same time, the detachable connection has the advantages of convenient disassembly and assembly, low cost, and reusable. Connect the other end of the connecting component 3 to the fixing mechanism 2. The fixing mechanism 2 and the connecting component 3 cooperate to abut the gear 4 against the inner wall of the receiving groove 212 and fit as closely as possible, realizing the pressing and fixing of the gear 4, so that the gear 4 no longer shakes when arranged in the receiving groove 212, preventing the collision between the gear 4 and the diesel engine frame during installation and protecting the gear 4. During the installation process, use the lifting frame 1 to place the fixing mechanism 2, the connecting component 3, and the gear 4 together in the installation groove of the diesel engine frame, so that the gear 4 is detachably connected to the end of the camshaft, realizing the installation of the gear 4.

[0032] Compared with the prior art using a suspension rope method, the gear disassembly and assembly fixture of the present invention has a simple structure and convenient disassembly and assembly. The gear 4 is limited and avoided by arranging the fixing mechanism 2; the existing gear 4 is pressed and fixed by arranging the connecting component 3. The fixing mechanism 2 and the connecting component 3 cooperate to make the gear 4 no longer shake when arranged in the receiving groove 212, ensuring operation safety and facilitating subsequent installation work. Using the gear disassembly and assembly fixture of this embodiment not only saves installation time and manpower, but also protects the personal safety of the installation personnel.

[0033] Further, as Figure 1As shown in the figure, a lifting hole 11 is provided at the upper end of the lifting frame 1. By providing the lifting hole 11 on the lifting frame 1, the hook is hung into the lifting hole 11, and the gear disassembly and assembly fixture and the gear 4 are lifted, and the fixing mechanism 2, the connecting component 3 and the gear 4 are jointly placed in the installation groove of the diesel engine frame. During the installation process, since the gear disassembly and assembly fixture and the gear 4 are relatively heavy themselves, by providing the lifting hole 11 and hanging the hook into the lifting hole 11 and using the hook to lift, not only the installation time is saved and the manpower is saved, but also the safety of the operation is ensured.

[0034] Furthermore, as Figure 1 shown, the fixing mechanism 2 includes a side plate 21. A receiving groove 212 is provided on the side plate 21. One side of the side plate 21 is connected to the lifting frame 1, and the other side is connected to the connecting component 3. In this embodiment, the side plate 21 of the gear installation fixture is vertically arranged. A first mounting plate is welded on the side plate 21, and a first mounting hole is provided on the first mounting plate; a second mounting plate is welded on the lifting frame 1, and a second mounting hole is provided on the second mounting plate. The first bolt passes through the first mounting hole and the second mounting hole to connect the first mounting plate and the second mounting, and the nut abutted against the outside of the second mounting plate is tightened to achieve the purpose of connecting the side plate 21 and the lifting frame 1. The other side of the side plate 21 is connected to the connecting component 3 to achieve the purpose of connecting the fixing mechanism 2 and the connecting component 3. By providing the side plate 21, the lifting frame 1 and the connecting component 3 are connected together.

[0035] Furthermore, as Figure 1 shown, the fixing mechanism 2 further includes a roller 22 and a roller shaft 221. The roller shaft 221 passes through the roller 22 and is connected to the side plate 21, so that the roller 22 can rotate relative to the roller shaft 221, and the roller 22 can abut against the teeth of the gear 4. By providing the roller 22 and the roller shaft 221, the structure of the roller 22 is simple and compact, and the occupied space area is small. The roller shaft 221 passes through the roller 22 and is fixedly connected to the side plate 21. The gear 4 is arranged in the receiving groove 212, and the gear 4 abuts against the roller 22. The roller 22 plays a role in supporting the gear 4. The roller 22 can rotate relative to the roller shaft 221, so that the gear 4 can also rotate relative to the roller shaft 221. If the roller 22 is not provided, the gear 4 is connected to the fixing mechanism 2 through the connecting component 3, and there may be a risk of the gear 4 falling without support; by providing the roller 22, the gear 4 abuts against the roller 22. The roller 22 has a high compressive strength and can withstand high pressure, preventing safety accidents caused by the falling of the gear 4. At the same time, the roller 22 and the gear 4 can rotate. During the installation process, when the connecting component 3 is not aligned with the gear weight reduction hole 41, the roller 22 and the gear 4 are in rolling cooperation to achieve the alignment of the gear weight reduction hole 41 and the connecting component 3.

[0036] Furthermore, the roller 22 is made of nylon material. The nylon material has a certain mechanical strength and good resilience, which can play a role in contact buffering. By making the roller 22 of nylon material, when the gear 4 abuts against the roller 22, the roller 22 can play a role in contact buffering; when the gear 4 and the roller 22 roll relative to each other, the wear of the gear 4 is reduced, and the tooth surface of the gear 4 is protected. Compared with the prior art of installing the gear by a suspension rope, in the gear disassembly and assembly jig of this embodiment, the gear 4 abuts against the roller 22, and the roller 22 has good resilience, reducing the wear between the tooth surface of the gear 4 and the fixing mechanism 2.

[0037] Furthermore, as Figure 1 and Figure 2 shown, the number of the side plates 21 is two, and the two side plates 21 are arranged parallel and opposite to each other, and a reinforcing member 23 is arranged between the two side plates 21. By arranging the two side plates 21 parallel and opposite to each other and arranging the reinforcing member 23 between the two side plates 21, the structural strength of the side plates 21 is increased. The side plate 21 is provided with a receiving groove 212 to receive part of the gear 4. If the structural strength of the side plate 21 is low and it is damaged, it will cause safety hazards such as the inclination or dropping of the gear 4. By arranging the reinforcing member 23, the structural strength of the side plate 21 is increased to prevent safety accidents.

[0038] Furthermore, as Figure 1 and Figure 2 shown, a plurality of connecting components 3 are provided, and an included angle is formed between two adjacent connecting components 3. If only one connecting component 3 is provided, the connection between the gear 4 and the fixing mechanism 2 is not stable enough, and the gear 4 is prone to inclination or dropping. By providing a plurality of connecting components 3, the connection stability between the gear 4 and the fixing mechanism 2 is ensured; if the connecting components 3 are only arranged parallel or perpendicular, due to the heavy weight of the gear 4, the connection between the connecting components 3 and the gear 4 is still not stable enough. By arranging an included angle between two adjacent connecting components 3, a triangular structure is formed between the adjacent connecting components 3 and the side plate 21. According to the principle of the stability of the triangular structure, the structural stability of the connecting components 3 is enhanced, thereby enhancing the fixing stability of the gear 4.

[0039] Specifically, as Figure 2As shown, the connecting component 3 includes a connecting arm 31. One end of the connecting arm 31 is detachably connected to the side plate 21 through a first connecting piece 311, and the other end is detachably connected to the gear weight reduction hole 41 through a second connecting piece 312. The first connecting piece 311 is specifically a second bolt, and the second connecting piece 312 is specifically a third bolt. Connect one end of the connecting arm 31 to the side plate 21 with the second bolt and tighten it with a nut. The connection is reliable, the structure is simple, and the disassembly and assembly are convenient. Pass the third bolt through the gear weight reduction hole 41, and the nut abuts against the connecting arm 31. Tighten the third bolt and the nut to achieve the purpose of connecting the gear 4 and the connecting arm 31. In this embodiment, the gear disassembly and assembly jig is provided with two sets of connecting components 3. Each set of connecting components 3 is provided with two connecting arms 31. These two connecting arms 31 are arranged parallel and opposite to each other. One end of the two connecting arms is respectively connected to the two side plates 21, and the other end is connected through the second connecting piece 312. This embodiment provides two connection methods for the connecting arm 31. One is that the connecting arm 31 is bolted to the side plate 21 and parallel to the top end of the side plate 21, and the other is that the connecting arm 31 is bolted to the side plate 21 and arranged at a certain angle with the side plate 21.

[0040] Furthermore, as Figure 2 shown, the connecting component 3 further includes a sleeve 32. The sleeve 32 is passed through the gear weight reduction hole 41, and the second connecting piece 312 is passed through the connecting arm 31 and the sleeve 32, so that the connecting arm 31 can abut against the side of the gear 4. The sleeve 32 is arranged between the connecting arm 31 and the gear weight reduction hole 41 to prevent the third bolt from directly contacting the gear weight reduction hole 41 and prevent the gear weight reduction hole 41 from being damaged by the third bolt. Preferably, a first mounting hole is provided on the connecting arm 31, and a second mounting hole is provided on the sleeve 32. Pass the sleeve 32 through the gear weight reduction hole 41, and then pass the third bolt through the first mounting hole and the second mounting hole. The inner wall of the connecting arm 31 can abut against the side of the gear 4, and the nut abuts against the outside of the connecting arm 31. Tighten the nut to prevent the gear 4 from rotating. If the sleeve 32 is not provided and only the third bolt is passed through the gear weight reduction hole 41, the third bolt directly contacts the gear weight reduction hole 41, which is likely to cause damage to the gear weight reduction hole 41. By passing the sleeve 32 through the gear weight reduction hole 41, the outer wall of the sleeve 32 abuts against the inner wall of the gear weight reduction hole 41, and the third bolt passes through the first mounting hole and the second mounting hole and tightens the nut to achieve the purpose of fastening the gear 4.

[0041] Furthermore, as Figure 2As shown in the figure, a positioning block 211 is provided on the side plate 21, and a positioning groove is provided on the positioning block 211. The positioning groove is clamped to the roller 221. By providing the positioning block 211 on the side plate 21 and providing the positioning groove on the positioning block 211 to clamp the roller 221, the circumferential rotation of the roller 221 is restricted. If the positioning block 211 is not provided, the rotation of the roller 22 drives the rotation of the roller 221. The long-term rotation is likely to cause the connection between the roller 221 and the side plate 21 to become loose, resulting in the detachment of the roller 22. By providing the positioning block 211 and providing the positioning groove on the positioning block 211, the roller 221 is clamped in the positioning groove, restricting the rotation of the roller 221 and enhancing the connection stability between the roller 221 and the side plate 21.

[0042] The working process of the gear installation jig provided in this embodiment:

[0043] First, place the gear 4 in the receiving groove 212 so that the roller 22 abuts against the tooth surface of the gear 4. Then, pass the sleeve 32 through the gear weight reduction hole 41 so that the outer wall of the sleeve 32 abuts against the inner wall of the gear weight reduction hole 41. Rotate the gear 4 to align the second installation hole on the sleeve 32 with the first connection hole on the connecting arm 31. Pass the third bolt through the first connection hole and the second connection hole, and tighten the nut against the outer side of the connecting arm 31 so that the connecting arm 31 abuts against the side of the gear 4. After fixing the gear 4, hang the hook into the lifting hole 11, and place the fixing mechanism 2, the connecting component 3, and the gear 4 together in the installation groove of the diesel engine frame through the lifting frame 1. Then, pass the gear bolt through the camshaft gear installation hole and the gear installation hole 42, and the nut abuts against the side of the gear 4 away from the camshaft. Tighten the nut to fasten the gear 4 to the end of the camshaft, realizing the installation of the gear 4.

[0044] After the installation is completed, first remove the third bolt and the nut to separate the side of the gear 4 from the connecting arm 31, and sequentially draw out the third bolt and the sleeve 32 from the gear weight reduction hole 41. Secondly, remove the second bolt and the nut to separate the connecting arm 31 from the side plate 21 and remove the connecting arm 31. After disassembling the connecting component 3, first move the hook downward to drive the lifting frame 1 and the fixing mechanism 2 to move downward, separating the gear 4 from the receiving groove 212, and then use the hook to lift out the lifting frame 1 and lift out the fixing mechanism 2 to complete the disassembly work of the gear disassembly and assembly jig and the gear 4.

[0045] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and defined, the first feature being “above” or “below” the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being “under”, “beneath” and “underneath” the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0047] In the description of this embodiment, the orientation or positional relationships such as “above”, “below”, “right” and the like are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms “first” and “second” are only used for distinction in description and have no special meanings.

[0048] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations to the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A gear disassembly and assembly fixture, characterized in that, Comprising: Lifting frame (1); Fixing mechanism (2), which is arranged at the lower end of the lifting frame (1), and a receiving groove (212) is arranged on the fixing mechanism (2), and the receiving groove (212) is used for partially receiving the gear (4); Connecting assembly (3), one end of which is connected to the fixing mechanism (2), and the other end passes through the gear weight reduction hole (41) of the gear (4) and is detachably connected to the gear (4); The lifting frame (1) is configured to jointly place the fixing mechanism (2), the connecting assembly (3) and the gear (4) into the installation groove of the diesel engine frame, so that the gear (4) is detachably connected to the end of the camshaft; The fixing mechanism (2) includes side plates (21), the receiving groove (212) is arranged on the side plates (21), one side of the side plates (21) is connected to the lifting frame (1), and the other side is connected to the connecting assembly (3); The connecting assembly (3) includes a connecting arm (31), one end of the connecting arm (31) is detachably connected to the side plate (21) through a first connecting piece (311), and the other end is detachably connected to the gear weight reduction hole (41) through a second connecting piece (312); The connecting assembly (3) further includes a sleeve (32), the sleeve (32) passes through the gear weight reduction hole (41), and the second connecting piece (312) passes through the connecting arm (31) and the sleeve (32), so that the connecting arm (31) can abut against the side of the gear (4); A plurality of the connecting assemblies (3) are provided, and an included angle is provided between two adjacent connecting assemblies (3).

2. The gear disassembly and assembly fixture according to claim 1, wherein, The fixing mechanism (2) further includes a roller (22) and a roller shaft (221), the roller shaft (221) passes through the roller (22) and is connected to the side plate (21), the roller (22) can rotate relative to the roller shaft (221), and the roller (22) can abut against the teeth of the gear (4).

3. The gear disassembly and assembly jig according to claim 2, characterized in that, The roller (22) is made of nylon material.

4. The gear disassembly and assembly fixture according to claim 2, wherein, A positioning block (211) is arranged on the side plate (21), and a positioning groove is arranged on the positioning block (211), and the positioning groove is clamped to the roller shaft (221).

5. The gear disassembly and assembly fixture according to claim 1, wherein The number of the side plates (21) is two, the two side plates (21) are arranged in parallel and facing each other, and a reinforcing member (23) is arranged between the two side plates (21).

6. The gear disassembly and assembly fixture according to claim 1, wherein A lifting hole (12) is arranged on the lifting frame (1).

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