Disassembling and assembling device for limiting check ring between transmission shafts

Abstract

The utility model discloses a speed changer inter-shaft limiting check ring dismounting device which comprises a first clamping arm and a second clamping arm which are arranged in a crossed mode, the first clamping arm and the second clamping arm are connected in a pivoted mode, the first ends of the first clamping arm and the second clamping arm are grab handles, the opposite second ends are provided with clamping heads, and the clamping heads are in an arc shape. The clamping heads of the first clamping arm and the second clamping arm are matched to form a clamping opening for clamping the limiting check ring. A friction surface is arranged on the inner side of the chuck, a telescopic rod is arranged at the second end of the first clamping arm and the second clamping arm and comprises an inner rod and an outer rod, the chuck is arranged at the end of the inner rod, a fixing hole is formed in the side face of the inner rod, and a positioning hole is correspondingly formed in the side wall of the outer rod in the telescopic direction of the rod. And fixing parts penetrate through the positioning holes and the fixing holes to fix the telescopic rods. By utilizing the lever principle and the friction force between the limiting check ring and the device, the limiting check ring can be easily and conveniently disassembled. The device is high in universality and wide in application range, and operability and safety of disassembly and assembly of the limiting check ring are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gearbox bench testing, and particularly relates to a gearbox inter-axle limit retaining ring disassembly and assembly device. Background Art

[0002] After the transmission sample is assembled or tested, it is necessary to disassemble and inspect the transmission to verify the product status and failure mode. At present, when disassembling and assembling the gear shaft of the transmission sample, due to the limited disassembly and assembly space and the lack of a dedicated shaft limit ring disassembly and assembly device, it is necessary to find several tools to combine and disassemble each time, which is not easy to operate, time-consuming and labor-intensive, and can easily cause hand injuries.

[0003] CN210440468U discloses a bearing that is easy to disassemble and install, comprising an outer ring, an inner ring and a ball, the ball being rotatably installed between the outer ring and the inner ring, the bearing also comprising a mounting seat, the mounting seat comprising a semicircular lower limit ring and an upper limit ring, the lower limit ring and the upper limit ring respectively clamping the upper and lower parts of the outer ring, the two lower limit rings being fixed to a positioning plate through a support plate, the two sides of the lower limit ring being connected to the upper limit ring through a movable connecting mechanism, the movable connecting mechanism comprising a second connecting block connected to the outer wall edge of the lower limit ring and a first connecting block connected to the outer wall edge of the upper limit ring, a connecting rod being inserted on the second connecting block, the connecting rod passing through a limiting hole set on the first connecting block and having a non-circular end plate connected to the upper end, the utility model can realize rapid disassembly and assembly of the bearing, and is easy to replace and maintain.

[0004] CN203650291U discloses a special pliers for dust cap of optical fiber connector, including a left pliers body, a right pliers body, and a fixed pin shaft, the front of the left and right pliers bodies are pliers heads, the rear of the pliers handles, the inner side of the pliers heads are jaws, the bottom of the jaws is provided with a pusher, the left pliers body is hinged with the right pliers body through the fixed pin shaft, the hinged ends of the left and right pliers handles are provided with stoppers, and the left and right pliers handles are provided with insulating protective sleeves. The utility model can accurately put the dust cap in a predetermined position through the pusher, and at the same time limit the telescopic scale of the special pliers, and limit the minimum opening distance of the special pliers opening through the stopper, effectively solve the use of force, prevent damage to the optical fiber connector, simple operation, reduce the error rate of pure manual operation, provide a quick guarantee for optical communication maintenance work, and improve work efficiency.

[0005] However, there is no disassembly and assembly device for the limit retaining ring of the transmission shaft in the prior art, which cannot solve the problem that the operating space is limited, the time and effort is wasted, and the hand injury is easily caused when removing the limit retaining ring. Utility Model Content

[0006] The purpose of the utility model is to provide a transmission shaft limit ring disassembly and assembly device, which utilizes the lever principle and the friction between the limit ring and the device to realize easy and convenient removal of the limit ring. The device has strong versatility and a wide range of applications, and improves the operability and safety of the limit ring disassembly and assembly. It solves the problem of limited operating space, time-consuming and labor-intensive operation, and easy hand injuries when removing the limit ring.

[0007] The specific contents of the plan are as follows:

[0008] A transmission shaft limit ring disassembly and assembly device comprises a first clamp arm and a second clamp arm arranged crosswise, wherein the first clamp arm and the second clamp arm are pivotally connected, the first ends of the first and second clamp arms are handles, and the opposite second ends are provided with a clamp head, which is arc-shaped, and the clamp heads of the first and second clamp arms cooperate to form a clamping opening for clamping the limit ring.

[0009] Furthermore, a friction surface is provided on the inner side of the chuck to increase the friction force between the chuck and the limit retaining ring.

[0010] Furthermore, a telescopic rod is provided at the second end of the first and second clamp arms, and the clamp head is arranged at the end of the telescopic rod.

[0011] Furthermore, the telescopic rod includes an inner rod and an outer rod, the clamp is arranged at the end of the inner rod, the outer rod is hollow inside, the inner rod is arranged inside the outer rod, and can slide relative to the outer rod to achieve telescopic movement, and the size of the clamp is adjusted by adjusting the length of the telescopic rod to adapt to limit rings of different sizes.

[0012] Furthermore, a fixing hole is provided on the side of the inner rod, and a positioning hole is provided on the side wall of the corresponding outer rod in the telescopic direction of the rod. Through telescoping, the fixing hole can be connected with the positioning hole, and a fixing component is used to pass through the positioning hole and the fixing hole to fix the telescopic rod.

[0013] Furthermore, the fixing hole or the positioning hole is provided with a thread, and a bolt is passed through the positioning hole to be threadedly connected with the fixing hole.

[0014] Furthermore, a supporting component is provided at the end of the outer rod. The supporting component is arc-shaped and cooperates with the clamp to form an open "O"-shaped clamping opening to increase the contact area and friction force between the clamping opening and the limit retaining ring.

[0015] Furthermore, the first clamp arm and the second clamp arm are hingedly connected via a fastening bolt and a locking nut, and the first clamp arm and the second clamp arm can be loosened or fixed by loosening or tightening the locking nut.

[0016] Furthermore, the friction surface on the inner side of the chuck is a serrated friction surface.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model utilizes the principle of lever and the friction between the limit retaining ring and the device, so as to realize easy and convenient removal of the limit retaining ring. The device of the utility model includes a telescopic rod, and the size of the clamping mouth can be adjusted by adjusting the length of the telescopic rod and the opening and closing angle of the clamping arm, so as to adapt to limit retaining rings of different sizes and specifications, and has strong versatility.

[0019] 2. The device provided by the utility model has a simple structure, low manufacturing cost, light weight, and is conducive to reducing labor intensity. The entire device is easy to operate, saves material costs, effectively improves the safety of disassembly and assembly operations, and further improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a transmission shaft limit ring disassembly and assembly device according to Embodiment 1 of the utility model;

[0021] Figure 2 This is a schematic diagram of a transmission shaft limit ring disassembly and assembly device according to Embodiment 2 of the present utility model;

[0022] Figure 3 This is a schematic diagram of the first structure of the fixed telescopic rod described in the second embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the second structure of the fixed telescopic rod according to the second embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the transmission shaft limit ring disassembly and assembly device described in Example 3 of the utility model.

[0025] In the figure:

[0026] 1. First clamp arm; 2. Second clamp arm; 3. Connecting part; 4. Handle; 5. Clamp;

[0027] 51. Friction surface; 6. Telescopic rod; 61. Inner rod; 62. Outer rod; 7. Gasket; 8. Positioning hole; 9. Fixing hole; 10. Fixing component; 11. Support component. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0030] It should be noted that the directions or positional relationships indicated by the terms "front", "rear", "inside", "outside", "left", "right", etc. in the present invention are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] It is particularly important to point out that any symbol and / or number in the specification which is not marked in the accompanying drawings is not a drawing mark.

[0032] The following is a detailed description with reference to the accompanying drawings.

[0033] See also Figure 1 , Embodiment 1 provides a transmission shaft limit ring disassembly and assembly device, including a first clamp arm 1 and a second clamp arm 2 arranged crosswise, the two are pivotally connected by a connecting component 3, the connecting component 3 can be a bolt, an anchor bolt or a pin, etc.; one end of the first and second clamp arms is a handle 4, and the other end opposite is a chuck 5, the chuck 5 is arc-shaped, and the two chucks 5 of the first and second clamp arms cooperate to form a clamping mouth so as to fit with the limit ring to be disassembled. In order to increase the friction between the chuck and the limit ring, a padding material that increases the friction, such as a rough surface textile, rubber, etc., can be set between the chuck and the limit ring; preferably, in this embodiment, a friction surface 51 is set on the inner side of the chuck, and the texture on the friction surface 51 is preferably serrated, and can also be parallel lines or grids, etc. When in use, the first and second clamp arms are opened so that the clamping mouth clamps the outer extension of the limit retaining ring, and the inner side of the clamp head fits the limit retaining ring as closely as possible. Then, the handle is squeezed and the handle is shaken up and down to move the limit retaining ring. When the limit retaining ring is aligned with the spline groove under the action of friction, the limit retaining ring can be easily removed. After the inspection or test, the device can also be used to install the limit retaining ring back to its original position, so as to achieve the purpose of disassembling and installing the limit retaining ring.

[0034] At the same time, the device can also be used to disassemble and assemble locking nuts at special positions.

[0035] See also Figure 2The transmission shaft limit retaining ring disassembly and assembly device provided in the second embodiment is additionally provided with a telescopic rod 6 on the basis of the first embodiment, wherein the telescopic rod comprises an inner rod 61 and an outer rod 62, wherein the outer rod 62 is integrally formed with the grip 4, and may also be connected by welding, bolts or riveting, etc.; the chuck 5 is arranged at the end of the inner rod 61, the outer rod 62 is hollow inside, the inner rod 61 is arranged inside the outer rod 62, and may slide relative to the outer rod 62, thereby realizing telescoping, and the size of the chuck is adjusted by adjusting the length of the telescopic rod to adapt to limit retaining rings of different sizes.

[0036] A fixing hole 9 is provided on the side of the inner rod, and a positioning hole 8 is provided on the side wall of the corresponding outer rod 62 along the extension direction of the rod. In this embodiment, a gasket 7 is preferably provided on the side wall of the outer rod 62, and the positioning hole 8 is provided on the gasket 7, or the positioning hole can be directly provided on the side wall of the outer rod 62. There can be a plurality of positioning holes 8, and the fixing hole 9 can be connected with the positioning hole 8 through extension and contraction, and the telescopic rod 6 is fixed by using a fixing component 10 to pass through the positioning hole and the fixing hole.

[0037] See also Figure 3 , which is the first structure for fixing the telescopic rod. The fixing hole 9 can be a through hole or a blind hole; the positioning hole 8 is a through hole, preferably, a thread is provided in the fixing hole 9, and the fixing component 10 is a bolt, and the fixing component 10 is used to pass through the positioning hole 8 and be threadedly connected with the fixing hole 9; threads can also be provided on the inner wall of the positioning hole 8, and the fixing component 10 is threadedly connected with the positioning hole 8 and then extends into the fixing hole 9 for limited fixing.

[0038] See also Figure 4 , which is the second structure for fixing the telescopic rod. The fixing hole 9 is a through hole, and a positioning hole 8 is set on the upper and lower side walls of the outer rod 62 corresponding to the fixing hole. No threads are required inside the fixing hole 8 and the positioning hole 9. The fixing component 10 includes a bolt and a nut. The bolt passes through the two positioning holes 8 and the fixing hole 9, and is fixed with a nut at the end that passes through. This fixing form is simpler, more convenient and faster.

[0039] The connecting member 3 in this embodiment is preferably hingedly connected by a fastening bolt 31 and a locking nut 32, and the first clamp arm and the second clamp arm can be loosened or fixed by loosening or tightening the locking nut. After the device clamps the limit retaining ring, the locking nut is tightened, and the operator does not need to hold the handle tightly throughout the whole process, making the operation more labor-saving.

[0040] See also Figure 5In the third embodiment, a support component 11 is newly provided at the end of the outer rod on the basis of the second embodiment. The support component 11 is arc-shaped and cooperates with the clamp to form an open "O"-shaped clamping mouth to increase the contact area and friction between the clamping mouth and the limit retaining ring. A friction surface can also be provided on the inner side of the support component 11 to further increase the friction force. When in use, first loosen the locking nut 32, remove the fixing component 10, adjust the opening angle of the first and second clamping arms and the length of the telescopic rod, so that the inner diameter of the "O"-shaped clamp is larger than the diameter of the limit retaining ring; then make the limit retaining ring located in the "O"-shaped clamp, adjust the opening angle of the first and second clamping arms, make the supporting component 11 fit the limit retaining ring as much as possible, then shorten the length of the telescopic rod 6, make the inner side of the clamp 5 fit the limit retaining ring as much as possible, and make multiple fine adjustments during the process until the device can firmly clamp the limit retaining ring; insert the fixing component 10 into the limit hole and the fixing hole to fix the telescopic rod 6, finally tighten the locking nut 32, shake the handle 4 up and down to allow the limit retaining ring to move, and then remove the limit retaining ring.

[0041] In summary, the transmission shaft limit ring disassembly and assembly device provided by the embodiment of the utility model can realize easy and convenient removal of the limit ring. The device has strong versatility and a wide range of applications, and improves the operability and safety of the limit ring disassembly and assembly. It solves the problem of limited operating space, time-consuming and labor-intensive operation, and easy hand injuries when removing the limit ring.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A transmission shaft limit ring disassembly and assembly device, characterized in that: The invention comprises a first clamp arm (1) and a second clamp arm (2) which are arranged crosswise, wherein the first clamp arm (1) and the second clamp arm (2) are pivotally connected, the first end of the first clamp arm and the second clamp arm are handles (4), and the opposite second ends are provided with clamp heads (5), the clamp heads (5) are arc-shaped, and the clamp heads (5) of the first clamp arm and the second clamp arm cooperate to form a clamping opening of a clamping limit retaining ring.

2. The transmission inter-shaft limit ring disassembly and assembly device according to claim 1, characterized in that: A friction surface (51) is provided on the inner side of the clamp (5) to increase the friction force between the clamp (5) and the limit retaining ring.

3. The transmission inter-shaft limit ring disassembly and assembly device according to claim 1 or 2, characterized in that: A telescopic rod (6) is provided at the second end of the first and second clamp arms, and a clamp head (5) is arranged at the end of the telescopic rod (6).

4. The transmission inter-shaft limit ring disassembly and assembly device according to claim 3, characterized in that: The telescopic rod (6) comprises an inner rod (61) and an outer rod (62). The clamp (5) is arranged at the end of the inner rod (61). The outer rod (62) is hollow inside. The inner rod (61) is arranged inside the outer rod (62) and can slide relative to the outer rod (62) to achieve telescopic movement. The size of the clamp is adjusted by adjusting the length of the telescopic rod (6) to adapt to limit retaining rings of different sizes.

5. The transmission inter-shaft limit ring disassembly and assembly device according to claim 4, characterized in that: The side of the inner rod (61) is provided with a fixing hole (9), and the side wall of the corresponding outer rod (62) is provided with a positioning hole (8) along the extension direction of the rod. Through extension and retraction, the fixing hole (9) can be connected with the positioning hole (8), and the telescopic rod (6) is fixed by a fixing component (10) passing through the positioning hole (8) and the fixing hole (9).

6. The transmission inter-shaft limit ring disassembly and assembly device according to claim 5, characterized in that: The fixing hole (9) or the positioning hole (8) is provided with a thread, and a bolt is passed through the positioning hole (8) to be threadedly connected with the fixing hole (9).

7. The transmission inter-shaft limit ring disassembly and assembly device according to claim 6, characterized in that: The end of the outer rod (62) is provided with a supporting component (11), which is arc-shaped and cooperates with the clamp (5) to form an open "O"-shaped clamping opening, so as to increase the contact area and friction force between the clamping opening and the limit retaining ring.

8. The transmission inter-shaft limit ring disassembly and assembly device according to claim 3, characterized in that: The first clamp arm (1) and the second clamp arm (2) are hingedly connected via a fastening bolt (31) and a locking nut (32), and the first clamp arm (1) and the second clamp arm (2) can be loosened or fixed by loosening or tightening the locking nut (32).

9. The transmission inter-shaft limit ring disassembly and assembly device according to claim 2, characterized in that: The inner friction surface (51) of the clamp (5) is a sawtooth friction surface.

Images