Spiral bevel gear speed reducer with adjustable back clearance

Abstract

The utility model relates to the technical field of speed reducers, in particular to a spiral bevel gear speed reducer with an adjustable back clearance, which comprises a speed reducer body, a limiting structure is arranged on the surface of the speed reducer body, the limiting structure comprises two fixing boxes, the surfaces of the two fixing boxes are fixedly connected with the speed reducer body, and the two fixing boxes are fixedly connected with the speed reducer body. Limiting frames are slidably connected to the inner wall of the fixing box, a balancing frame is fixedly installed on the surfaces of the limiting frames and slidably penetrates through the fixing box, the surfaces of the balancing frames are in threaded connection with rotating cylinders, the surfaces of the two limiting frames are each provided with two limiting holes, and clamping plates are slidably connected to the inner walls of the limiting holes. Every two of the four clamping plates form a group, and top plates are fixedly mounted on the surfaces of the two groups of clamping plates. According to the spiral bevel gear speed reducer, the defect that in the prior art, when the back clearance of the spiral bevel gear speed reducer is adjusted, the spiral bevel gear speed reducer is prone to shaking, and adjustment of the back clearance of the spiral bevel gear speed reducer by workers is affected is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducers, in particular to a backlash-adjustable spiral bevel gear speed reducer. Background Technique

[0002] The spiral bevel gear speed reducer is a special type of speed reducer, with spiral gears and bevel gears as the core components, and is widely used in various mechanical transmission systems. Due to its high efficiency, smoothness and strong load-bearing capacity, the spiral bevel gear speed reducer has become a key component in many industrial applications.

[0003] Regarding the above and existing related technologies, the inventor believes that the following defects often exist: the existing spiral bevel gear speed reducer can adjust the backlash. When adjusting the backlash of the spiral bevel gear speed reducer, the spiral bevel gear speed reducer is prone to shaking, which affects the staff's adjustment of the backlash of the spiral bevel gear speed reducer.

[0004] Therefore, the utility model provides a backlash-adjustable spiral bevel gear speed reducer. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defect that when adjusting the backlash of the spiral bevel gear speed reducer in the prior art, the spiral bevel gear speed reducer is prone to shaking, which affects the staff's adjustment of the backlash of the spiral bevel gear speed reducer, and a backlash-adjustable spiral bevel gear speed reducer is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a backlash-adjustable spiral bevel gear speed reducer, including a speed reducer body, a limiting structure is arranged on the surface of the speed reducer body, the limiting structure includes two fixed boxes, the surfaces of the two fixed boxes are fixedly connected with the speed reducer body, a limiting frame is slidably connected to the inner wall of the fixed box, a balance frame is fixedly installed on the surface of the limiting frame, the balance frame slidably penetrates the fixed box, and a rotating cylinder is threadedly connected to the surface of the balance frame.

[0007] The effect achieved by the above components is that by setting the limiting structure, when adjusting the backlash of the spiral bevel gear speed reducer, the spiral bevel gear speed reducer can be limited on the workbench, so that the spiral bevel gear speed reducer will not shake, which is convenient for the staff to adjust the backlash of the spiral bevel gear speed reducer.

[0008] Preferably, two limiting holes are opened on the surfaces of the two limiting frames, a clamping plate is slidably connected to the inner wall of the limiting hole, the four clamping plates are in two groups, and a top plate is fixedly installed on the surfaces of the two groups of clamping plates, and the surface of the top plate is slidably connected to the limiting frame.

[0009] The effect achieved by the above components is that the top plate can assist the limiting frame to fix the speed reducer body.

[0010] Preferably, clamping pads are fixedly installed on the surfaces of both of the limiting frames. The clamping pads are elastic pads, and the surfaces of the clamping pads are slidably connected to the top plate.

[0011] The effect achieved by the above components is that the clamping pads can use elastic force to squeeze the top plate, so that the top plate and the limiting frame are fixed, achieving the effect of fixing the top plate and the limiting frame.

[0012] Preferably, four iron blocks are fixedly installed on the surface of the reducer body, and two magnets are fixedly installed on the surfaces of both of the limiting frames. The surfaces of the magnets are abutted against the iron blocks.

[0013] The effect achieved by the above components is that the magnets can be adsorbed on the iron blocks, so that the limiting frames cannot slide, achieving the effect of restricting the sliding of the limiting frames.

[0014] Preferably, an auxiliary structure is provided on the surface of the reducer body. The auxiliary structure includes a protective plate. The protective plate is located on the surface of the reducer body. Two connecting rods are rotatably inserted into the interior of the protective plate. A blocking block is fixedly installed on the surface of the connecting rod. An extension block is fixedly installed on the surface of the blocking block. Two square plates are fixedly installed on the surface of the reducer body. Concave holes are formed in the surfaces of the square plates. The inner walls of the concave holes are slidably connected to the connecting rods. The size of the concave holes is adapted to the size of the blocking blocks.

[0015] The effect achieved by the above components is that by providing the auxiliary structure, when the reducer is not in use, the connection part of the reducer can be shielded, so that sundries cannot accumulate inside the reducer.

[0016] Preferably, two support blocks are fixedly installed on the surface of the reducer body. The surfaces of the support blocks are slidably connected to the connecting rods.

[0017] The effect achieved by the above components is that the connecting rods can slide along the support blocks to the inner walls of the concave holes.

[0018] In summary:

[0019] 1. In the present utility model, when it is necessary to adjust the backlash of the spiral bevel gear reducer, make the reducer and the limiting frames contact the upper and lower edges of the workbench, and then rotate the rotating cylinder. The rotating cylinder moves downward by means of the thread. After the rotating cylinder moves a certain distance, the surface of the rotating cylinder contacts the fixed box. At this time, the surfaces of the limiting frames and the reducer squeeze the workbench. When adjusting the backlash of the spiral bevel gear reducer, the reducer will not shake. By providing the limiting structure, when adjusting the backlash of the spiral bevel gear reducer, the spiral bevel gear reducer can be limited on the workbench, so that the spiral bevel gear reducer will not shake, facilitating the staff to adjust the backlash of the spiral bevel gear reducer.

[0020] 2. In the present utility model, when the speed reducer is not in use, first move the connecting rod along the inner wall of the concave hole on the square plate along the support block, and the stopper on the connecting rod will pass through the concave hole by means of the extension block. At this time, the protective plate on the connecting rod blocks the speed reducer. Then rotate the stopper. After the stopper rotates a certain angle, the surface of the stopper presses the square plate, and at this time the protective plate is fixed on the speed reducer. By setting the auxiliary structure, when the speed reducer is not in use, the connection part of the speed reducer can be blocked, so that sundries cannot accumulate inside the speed reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 of the present utility model Figure 1 is a side view structural schematic diagram;

[0023] Figure 3 of the present utility model Figure 2 is an enlarged view at A of the present utility model;

[0024] Figure 4 of the present utility model Figure 2 is a partial structural schematic diagram;

[0025] Figure 5 of the present utility model Figure 2 is a disassembly structural schematic diagram.

[0026] Legend: 1, speed reducer body; 2, limiting structure; 201, fixed box; 202, iron block; 203, magnet; 204, top plate; 205, clamping plate; 206, limiting hole; 207, clamping pad; 208, limiting frame; 209, balance frame; 210, rotating cylinder; 3, auxiliary structure; 31, protective plate; 32, connecting rod; 33, support block; 34, square plate; 35, concave hole; 36, stopper; 37, extension block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Referring to Figure 1 as shown, the present utility model provides a technical solution: a backlash-adjustable spiral bevel gear speed reducer, including a speed reducer body 1. A limiting structure 2 is provided on the surface of the speed reducer body 1. By setting the limiting structure 2, when adjusting the backlash of the spiral bevel gear speed reducer, the spiral bevel gear speed reducer can be limited on the workbench, so that the spiral bevel gear speed reducer will not shake, which is convenient for the staff to adjust the backlash of the spiral bevel gear speed reducer. An auxiliary structure 3 is provided on the surface of the speed reducer body 1. By setting the auxiliary structure 3, when the speed reducer is not in use, the connection part of the speed reducer can be blocked, so that sundries cannot accumulate inside the speed reducer.

[0028] Next, specifically describe the specific settings and functions of its limiting structure 2 and auxiliary structure 3.

[0029] Referring to Figure 2 and Figure 3 shown in the figure, in this embodiment: The limit structure 2 includes two fixed boxes 201. The surfaces of the two fixed boxes 201 are fixedly connected to the reducer body 1. A limit frame 208 is slidably connected to the inner wall of the fixed box 201. A balance frame 209 is fixedly installed on the surface of the limit frame 208. The balance frame 209 slidably penetrates the fixed box 201. A rotating cylinder 210 is threadedly connected to the surface of the balance frame 209. Two limit holes 206 are opened on the surfaces of the two limit frames 208. A clamping plate 205 is slidably connected to the inner wall of the limit hole 206. The four clamping plates 205 are grouped in pairs. Two top plates 204 are fixedly installed on the surfaces of the two groups of clamping plates 205. The surface of the top plate 204 is slidably connected to the limit frame 208. The top plate 204 can assist the limit frame 208 to fix the reducer body 1. Two clamping pads 207 are fixedly installed on the surfaces of the two limit frames 208. The clamping pad 207 is an elastic pad. The surface of the clamping pad 207 is slidably connected to the top plate 204. The clamping pad 207 can use elastic force to squeeze the top plate 204, so that the top plate 204 and the limit frame 208 are fixed between them, achieving the effect of fixing the top plate 204 and the limit frame 208. Four iron blocks 202 are fixedly installed on the surface of the reducer body 1. Two magnets 203 are fixedly installed on the surfaces of the two limit frames 208. The surface of the magnet 203 abuts against the iron block 202. The magnet 203 can be adsorbed on the iron block 202, so that the limit frame 208 cannot slide, achieving the effect of restricting the sliding of the limit frame 208.

[0030] Referring to Figure 3 , Figure 4 and Figure 5 shown in the figure, specifically, the auxiliary structure 3 includes a protection plate 31. The protection plate 31 is located on the surface of the reducer body 1. Two connecting rods 32 are rotatably inserted into the interior of the protection plate 31. A stop block 36 is fixedly installed on the surface of the connecting rod 32. An extension block 37 is fixedly installed on the surface of the stop block 36. Two square plates 34 are fixedly installed on the surface of the reducer body 1. A concave hole 35 is opened on the surface of the square plate 34. The inner wall of the concave hole 35 is slidably connected to the connecting rod 32. The size of the concave hole 35 is adapted to the size of the stop block 36. Two support blocks 33 are fixedly installed on the surface of the reducer body 1. The surface of the support block 33 is slidably connected to the connecting rod 32. The connecting rod 32 can slide along the support block 33 to the inner wall of the concave hole 35.

[0031] Working principle: When it is necessary to adjust the backlash of the spiral bevel gear reducer, first slide the limit frame 208 downward. After the limit frame 208 slides a certain distance, stop sliding the limit frame 208. Then slide the top plate 204. The top plate 204 slides in a direction away from the limit frame 208. After the top plate 204 slides a certain distance supported by the clamping plate 205, stop sliding the top plate 204. Then make the reducer and the limit frame 208 contact the upper and lower edges of the workbench. Then rotate the rotating cylinder 210. The rotating cylinder 210 moves downward by means of the thread. After the rotating cylinder 210 moves a certain distance, the surface of the rotating cylinder 210 contacts the fixed box 201. At this time, the surfaces of the limit frame 208 and the reducer press against the workbench. When adjusting the backlash of the spiral bevel gear reducer, the reducer will not shake. By setting the limit structure 2, when adjusting the backlash of the spiral bevel gear reducer, the spiral bevel gear reducer can be limited on the workbench, so that the spiral bevel gear reducer will not shake, which is convenient for the staff to adjust the backlash of the spiral bevel gear reducer.

[0032] When the reducer is not in use, first move the connecting rod 32 along the support block 33 on the inner wall of the concave hole 35 of the square plate 34. The stop block 36 on the connecting rod 32 will pass through the concave hole 35 by means of the extension block 37. At this time, the protective plate 31 on the connecting rod 32 shields the reducer. Then rotate the stop block 36. After the stop block 36 rotates a certain angle, the surface of the stop block 36 presses against the square plate 34. At this time, the protective plate 31 is fixed on the reducer. By setting the auxiliary structure 3, when the reducer is not in use, the connection part of the reducer can be shielded, so that sundries cannot accumulate inside the reducer.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "connection" 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, and it can be the communication inside two components. 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 situations.

Claims

1. A backlash adjustable spiral bevel gear reducer, comprising a reducer body (1), characterized in that: A limiting structure (2) is provided on the surface of the reducer body (1), the limiting structure (2) comprising two fixed boxes (201), the surfaces of the two fixed boxes (201) being fixedly connected to the reducer body (1), the inner wall of the fixed box (201) being slidably connected to a limiting frame (208), a balancing frame (209) being fixedly mounted on the surface of the limiting frame (208), the balancing frame (209) slidably passing through the fixed box (201), and a rotating cylinder (210) being threadedly connected to the surface of the balancing frame (209).

2. The backlash adjustable spiral bevel gear reducer according to claim 1, characterized in that: Two limiting holes (206) are provided on the surfaces of the two limiting frames (208); the inner walls of the limiting holes (206) are slidably connected with a clamping plate (205); the four clamping plates (205) are arranged in groups of two; a top plate (204) is fixedly mounted on the surfaces of the two groups of clamping plates (205); and the surface of the top plate (204) is slidably connected to the limiting frames (208).

3. The backlash adjustable spiral bevel gear reducer according to claim 2, characterized in that: A clamping pad (207) is fixedly mounted on the surface of the two limit frames (208); the clamping pad (207) is an elastic pad; and the surface of the clamping pad (207) is slidably connected to the top plate (204).

4. The backlash-adjustable spiral bevel gear reducer according to claim 1, characterized in that: Four iron blocks (202) are fixedly mounted on the surface of the reducer body (1), and two magnets (203) are fixedly mounted on the surfaces of the two limit frames (208), with the surfaces of the magnets (203) abutting against the iron blocks (202).

5. The backlash-adjustable spiral bevel gear reducer according to claim 1, characterized in that: An auxiliary structure (3) is provided on the surface of the reducer body (1), and the auxiliary structure (3) comprises a protective plate (31), the protective plate (31) is located on the surface of the reducer body (1), two connecting rods (32) are rotatably inserted inside the protective plate (31), a stopper (36) is fixedly mounted on the surface of the connecting rod (32), and an extension block (37) is fixedly mounted on the surface of the stopper (36), and two square plates (34) are fixedly mounted on the surface of the reducer body (1), a concave hole (35) is opened on the surface of the square plate (34), the inner wall of the concave hole (35) is slidably connected to the connecting rod (32), and the size of the concave hole (35) is matched with the size of the stopper (36).

6. The backlash-adjustable spiral bevel gear reducer according to claim 5, characterized in that: Two support blocks (33) are fixedly mounted on the surface of the reducer body (1), and the surfaces of the support blocks (33) are slidably connected to the connecting rods (32).

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