Polishing device for eccentric bushing of speed reducer

Abstract

The utility model relates to the technical field of reducer eccentric bushing machining, and discloses a reducer eccentric bushing polishing device which comprises a concentric-square-shaped frame, an air cylinder is installed on the top of the concentric-square-shaped frame, the output end of the air cylinder is fixedly connected with a connecting box, a rotating motor is installed in the connecting box, and the output end of the rotating motor is fixedly connected with a polishing disc. Through the arrangement of the driving assembly, in the rotating process of the bidirectional lead screw, under the action of the driving gear and the driven gear, the threaded rod rotates, and the threaded cylinder moves towards the surface of the eccentric sleeve until the threaded cylinder abuts against the outer side of the eccentric sleeve, so that internal and external clamping of the eccentric sleeve is achieved, and the eccentric sleeve is fixed more stably; after the polishing work is completed, the air cylinder drives the polishing disc to reset, and in the process, the abutting plate and the abutting piece are driven to reset, so that clamping of the eccentric bushing is relieved, the eccentric bushing is convenient to take down, the eccentric bushing is mounted and taken down more quickly, and the working efficiency of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the eccentric bush machining technical field of speed reducer especially relates to a speed reducer eccentric bush polishing device. BACKGROUND

[0002] The eccentric bush of speed reducer is the key part for adjusting assembly precision and prolonging service life in speed reducer, and the eccentric bush is a thin-walled part with high machining precision, so it is difficult to machine, and the eccentric function is realized through the combination of the internal eccentric sleeve (its inner hole is not centered) and the external outer ring and bearing.

[0003] A speed reducer eccentric bush polishing device is disclosed in the Chinese utility model patent with the publication number CN221474789U, which comprises a polishing device, an eccentric bush is placed on the polishing device to polish the surface of the eccentric bush, the eccentric bush is placed on the top of the supporting frame, the adjusting screw is rotated on the outer frame, the adjusting screw is rotated and moves downward, the sliding plate is driven to move downward, the pressure rod is pressed downward in the process of moving downward of the sliding plate to drive the outer pressure rod to move downward, the outer pressure rod is pressed on the outer surface of the eccentric bush to limit and fix the eccentric bush.

[0004] According to the related technology in the above, the inventor believes that the following defects exist: the device needs to limit and fix the eccentric bush before polishing, and after completing the polishing, the fixation of the eccentric bush needs to be released, so that the eccentric bush can be taken down, which makes the steps of polishing the eccentric bush more complicated and affects the overall working efficiency of the device, and the size of the eccentric bush is different, so the clamping position of the device needs to be adjusted according to the size of the eccentric bush to improve the application range of the device. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a speed reducer eccentric bush polishing device.

[0006] The utility model adopts the following technical scheme: a speed reducer eccentric bush polishing device, including the back type frame, the top of back type frame installs the air cylinder, the output fixedly connected with the connecting box of air cylinder, the inside of connecting box installs the rotating motor, the output fixedly connected with the polishing disc of rotating motor, the left side of back type frame installs the drive assembly, and the bottom of back type frame inner wall installs the limit component.

[0007] The drive assembly comprises a long plate, the long plate is sleeved on the outside of the output shaft of the air cylinder, the left side of the long plate is fixedly connected with a lifting tooth plate, the surface of the lifting tooth plate is meshed with a connecting gear, one end of the middle shaft of the connecting gear is rotatably connected to the left side of the back type frame, and the bottom of the long plate is fixedly connected with a counterweight.

[0008] The limiting assembly comprises an H-shaped plate and a bidirectional screw rod, the bottom of the H-shaped plate is fixedly connected to the bottom of the inner wall of the back-shaped frame, one end of the bidirectional screw rod is rotatably connected to the inner wall of the back-shaped frame, the other end of the bidirectional screw rod and the other end of the middle shaft of the connecting gear are both sleeved with a pulley, the two pulleys are transmissionally connected through a synchronous belt, the outer side of the bidirectional screw rod is screwedly connected with two symmetrically arranged vertical plates, the inside of the vertical plate is screwedly connected with an adjusting screw rod, one end of the adjusting screw rod is rotatably connected with an abutting plate, the surface of the bidirectional screw rod is sleeved with two symmetrically arranged driving gears, the surface of the driving gear is meshedly connected with a driven gear, the axial center of the driven gear is penetratedly connected with a threaded rod, one end of the threaded rod is rotatably connected to the inner wall of the back-shaped frame, the outer side of the threaded rod is screwedly connected with a threaded cylinder, one end of the threaded cylinder is fixedly connected with an abutting piece.

[0009] As a further improvement of the above-mentioned scheme, the abutting piece comprises an abutting frame and a connecting frame, the inner wall of the abutting frame is rotatably connected with a connecting cylinder, the inside of the connecting cylinder is screwedly connected with a small screw rod, the small screw rod is rotatably connected to the surface of the connecting frame, the top and the bottom of the abutting frame are fixedly connected with clamping blocks, the top and the bottom of the inner wall of the connecting frame are provided with clamping grooves matched with the clamping blocks, so that the distance of the abutting frame is conveniently adjusted.

[0010] As a further improvement of the above-mentioned scheme, the surface of the threaded cylinder is fixedly connected with a clamping strip, the surface of the H-shaped plate is provided with a through hole through which the clamping strip and the threaded cylinder pass, so that the normal work of the threaded cylinder is ensured.

[0011] As a further improvement of the above-mentioned scheme, the surface of the abutting plate is fixedly connected with two limiting plates, the limiting plates are slidably arranged in the inside of the vertical plate, so that the normal movement of the abutting plate is ensured.

[0012] As a further improvement of the above-mentioned scheme, the surface of the lifting tooth plate is fixedly connected with a vertical strip plate, the left side of the back-shaped frame is provided with a vertical groove for the movement of the vertical strip plate, so that the normal lifting movement of the lifting tooth plate is ensured.

[0013] As a further improvement of the above-mentioned scheme, the outer side of the bidirectional screw rod is provided with two rotating bearings, the rotating bearings are arranged on the surface of the H-shaped plate, so that the normal work of the bidirectional screw rod is ensured.

[0014] As a further improvement of the above-mentioned scheme, the top of the H-shaped plate is provided with a straight groove, the vertical plate is slidably arranged in the inside of the straight groove, so that the normal movement of the vertical plate is ensured.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1. The utility model discloses a drive assembly is set, under the action of driving gear and driven gear in the process of bidirectional screw rod rotation, screw rod rotates, and the threaded cylinder moves under the action of screw rod to the surface of eccentric sleeve, until abuts at the outside of eccentric sleeve, thereby realize the inside and outside clamping of eccentric sleeve, make the eccentric sleeve be fixed more stable, after completing polishing work, the cylinder resets with polishing disc, in this process, will reset with abutment plate and abutment piece reset, thereby release the clamping of eccentric sleeve, make the eccentric sleeve installation and take down become more fast, improve the work efficiency of device.

[0017] 2. The utility model discloses a limiting component is set, according to the size of eccentric sleeve of speed reducer that needs processing, rotates small screw rod, with connecting frame moves to the abutment frame, thereby adjusted the length of abutment frame, rotates threaded rod, with abutment plate moves to threaded cylinder, thereby change the initial position of abutment plate, through the advance adjustment of the overall length of abutment piece and the initial position of abutment plate, make polishing disc reach the work position, abutment piece and abutment plate can just abut on the surface and inner wall of eccentric sleeve, make the device can adapt to eccentric sleeve of different size, improve the use range of device. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure schematic diagram of polishing disc, long board and lifting toothed plate of the utility model;

[0020] Figure 3 It is the internal structure schematic diagram of abutment piece of the utility model;

[0021] Figure 4 It is the structure schematic diagram of vertical board, adjusting screw rod and abutment plate of the utility model.

[0022] MAIN SYMBOL EXPLANATION

[0023] 1, back type frame;2, cylinder;3, polishing disc;4, long board;5, lifting toothed plate;6, connecting gear;7, counterweight;8, H-shaped board;9, bidirectional screw rod;10, vertical board;11, adjusting screw rod;12, abutment plate;13, driving gear;14, driven gear;15, screw rod;16, threaded cylinder;17, abutment piece. DETAILED DESCRIPTION

[0024] Below, combining the drawings and specific implementation, the utility model is described further, need explanation is, under the premise that does not conflict, the following description each embodiment between or each technical feature between can be arbitrary combination and form new embodiment.

[0025] EMBODIMENT:

[0026] Please combine Figures 1-4 The eccentric sleeve polishing device of the embodiment comprises a back-shaped frame 1, a gas cylinder 2 is installed on the top of the back-shaped frame 1, a connecting box is fixedly connected to the output end of the gas cylinder 2, a rotary motor is installed in the connecting box, a polishing disc 3 is fixedly connected to the output end of the rotary motor, a driving assembly is installed on the left side of the back-shaped frame 1, and a limiting assembly is installed on the bottom of the inner wall of the back-shaped frame 1.

[0027] The driving assembly is used for controlling the polishing disc 3 to move up and down, the driving assembly comprises a long plate 4, the long plate 4 is sleeved on the outside of the output shaft of the gas cylinder 2, a lifting toothed plate 5 is fixedly connected to the left side of the long plate 4, a vertical strip plate is fixedly connected to the surface of the lifting toothed plate 5, a vertical groove for the vertical strip plate to move is formed in the left side of the back-shaped frame 1, the normal lifting movement of the lifting toothed plate 5 is ensured, a connecting gear 6 is meshingly connected to the surface of the lifting toothed plate 5, one end of the middle shaft of the connecting gear 6 is rotatably connected to the left side of the back-shaped frame 1, and a counterweight 7 is fixedly connected to the bottom of the long plate 4.

[0028] The limiting assembly is used for limiting and fixing the eccentric sleeve of the speed reducer, and the limiting assembly comprises an H-shaped plate 8 and a bidirectional screw rod 9. Two rotating bearings are installed on the outer side of the bidirectional screw rod 9, the rotating bearings are installed on the surface of the H-shaped plate 8, the normal work of the bidirectional screw rod 9 is ensured, the bottom of the H-shaped plate 8 is fixedly connected to the bottom of the inner wall of the back-shaped frame 1, one end of the bidirectional screw rod 9 is rotatably connected to the inner wall of the back-shaped frame 1, the other end of the bidirectional screw rod 9 and the other end of the middle shaft of the connecting gear 6 are both sleeved with a belt pulley, the two belt pulleys are transmissionally connected through a synchronous belt, two symmetrical vertical plates 10 are threadedly connected to the outer side of the bidirectional screw rod 9, a linear slot is formed in the top of the H-shaped plate 8, the vertical plate 10 is slidably arranged in the linear slot, the normal movement of the vertical plate 10 is ensured, an adjusting screw rod 11 is threadedly connected to the inside of the vertical plate 10, one end of the adjusting screw rod 11 is rotatably connected to an abutting plate 12, two limiting plates are fixedly connected to the surface of the abutting plate 12, the limiting plates are slidably arranged in the inside of the vertical plate 10, the normal movement of the abutting plate 12 is ensured, two symmetrical driving gears 13 are sleeved with the surface of the bidirectional screw rod 9, a driven gear 14 is meshingly connected to the surface of the driving gear 13, a threaded rod 15 is connected to the axial center of the driven gear 14, one end of the threaded rod 15 is rotatably connected to the inner wall of the back-shaped frame 1, a threaded cylinder 16 is threadedly connected to the outer side of the threaded rod 15, a clamping strip is fixedly connected to the surface of the threaded cylinder 16, a through hole is formed in the surface of the H-shaped plate 8 for the clamping strip and the threaded cylinder 16 to pass through, the normal work of the threaded cylinder 16 is ensured, one end of the threaded cylinder 16 is fixedly connected to an abutting piece 17, the abutting piece 17 comprises an abutting frame and a connecting frame, a connecting cylinder is rotatably connected to the inner wall of the abutting frame, a small screw rod is threadedly connected to the inside of the connecting cylinder, the small screw rod is rotatably connected to the surface of the connecting frame, clamping blocks are fixedly connected to the top and the bottom of the abutting frame, clamping grooves matched with the clamping blocks are formed in the top and the bottom of the inner wall of the connecting frame, so that the distance of the abutting frame extending out can be conveniently adjusted.

[0029] The implementation principle of the eccentric sleeve polishing device in the embodiment of the application is as follows: the eccentric sleeve of the speed reducer is placed on the surface of the H-shaped plate 8, the cylinder 2 is started to make the cylinder 2 with the connecting box and the long plate 4 move up and down, after the polishing disc 3 moves to the working position, the driving motor is started to make the polishing disc 3 polish the surface of the eccentric sleeve, in this process, the long plate 4 will make the lifting gear plate 5 move downward, the connecting gear 6 rotates under the action of the lifting gear plate 5, the bidirectional screw rod 9 rotates under the action of the synchronous belt, so that the two vertical plates 10 move in opposite directions until the abutting plates 12 on the two vertical plates 10 abut against the inner wall of the eccentric sleeve.

[0030] In the process, the driving gear 13 and driven gear 14 under the action of the threaded rod 15, threaded cylinder 16 under the action of threaded rod 15 to the surface of the eccentric sleeve moves until the abutment in the outer side of the eccentric sleeve, so as to realize the inner and outer clamping of eccentric sleeve, so that the eccentric sleeve is fixed more stable, after completing the polishing work, the cylinder 2 with the polishing disc 3 reset, the process, will take with the abutment plate 12 and abutment piece 17 reset, thereby removing the clamping of the eccentric sleeve, convenient to take down the eccentric sleeve, realize the polishing disc 3 to reach the working position, automatically complete the limit fixing of eccentric sleeve, polishing disc 3 reset, automatically remove the limit fixing of eccentric sleeve, so that the installation and take down the eccentric sleeve becomes more fast, improve the work efficiency of the device.

[0031] According to the size of the eccentric sleeve of the speed reducer to be processed, rotate the small screw rod, so that the abutment frame moves along the connecting frame, thereby adjusting the extension length of the abutment frame, rotate the threaded rod 15, so that the threaded cylinder 16 moves with the abutment plate 12, thereby changing the initial position of the abutment plate 12, by adjusting the overall length of the abutment piece 17 and the initial position of the abutment plate 12 in advance, so that the polishing disc 3 reaches the working position, the abutment piece 17 and the abutment plate 12 can just abut on the surface and inner wall of the eccentric sleeve, so that the device can adapt to different sizes of eccentric sleeve, improve the use range of the device.

[0032] The above embodiment is only the preferred embodiment of the present application, which cannot be used to limit the scope of the present application, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the present application shall belong to the scope of the present application.

Claims

1. A polishing device for an eccentric sleeve of a speed reducer, characterized in that, Including back type frame (1), the top of back type frame (1) is installed with air cylinder (2), the output end of air cylinder (2) is fixedly connected with connecting box, the inside of connecting box is installed with rotary motor, the output end of rotary motor is fixedly connected with polishing disc (3), the left side of back type frame (1) is installed with drive assembly, the bottom of the inner wall of back type frame (1) is installed with limiting assembly; The drive assembly includes a long plate (4) that is sleeved on the outside of the output shaft of the air cylinder (2), a lifting toothed plate (5) fixedly connected to the left side of the long plate (4), a connecting gear (6) engagedly connected to the surface of the lifting toothed plate (5), and one end of the middle shaft of the connecting gear (6) rotatably connected to the left side of the back type frame (1), and a counterweight (7) fixedly connected to the bottom of the long plate (4). The limiting assembly includes an H-shaped plate (8) fixedly connected to the bottom of the inner wall of the back type frame (1), a bidirectional screw rod (9) rotatably connected to the inner wall of the back type frame (1) at one end, and the other end of the bidirectional screw rod (9) and the other end of the middle shaft of the connecting gear (6) are both sleeved with pulleys, the two pulleys are drivingly connected by a synchronous belt, the outer side of the bidirectional screw rod (9) is threadedly connected with two symmetrical vertical plates (10), the inside of each vertical plate (10) is threadedly connected with an adjusting screw rod (11), one end of the adjusting screw rod (11) is rotatably connected with an abutment plate (12), the surface of the bidirectional screw rod (9) is sleeved with two symmetrical driving gears (13), the surface of each driving gear (13) is engagedly connected with a driven gear (14), a threaded rod (15) penetrates through the shaft center of the driven gear (14), one end of the threaded rod (15) is rotatably connected to the inner wall of the back type frame (1), the outer side of the threaded rod (15) is threadedly connected with a threaded cylinder (16), and one end of the threaded cylinder (16) is fixedly connected with an abutment piece (17).

2. The polishing device for the eccentric sleeve of a speed reducer according to claim 1, wherein The abutment piece (17) includes an abutment frame and a connecting frame, a connecting cylinder is rotatably connected to the inner wall of the abutment frame, a small screw rod is threadedly connected to the inside of the connecting cylinder, the small screw rod is rotatably connected to the surface of the connecting frame, clamping blocks are fixedly connected to the top and bottom of the abutment frame, and clamping grooves matched with the clamping blocks are formed in the top and bottom of the inner wall of the connecting frame.

3. The polishing device for the eccentric sleeve of a speed reducer according to claim 1, wherein The surface of the threaded cylinder (16) is fixedly connected with a clamping strip, and the surface of the H-shaped plate (8) is provided with a through hole through which the clamping strip and the threaded cylinder (16) pass.

4. The polishing apparatus for an eccentric sleeve of a speed reducer according to claim 1, wherein The surface of the abutment plate (12) is fixedly connected with two limiting plates, and the limiting plates are slidingly arranged in the inside of the vertical plate (10).

5. The polishing apparatus for an eccentric sleeve of a speed reducer according to claim 1, wherein The surface of the lifting toothed plate (5) is fixedly connected with a vertical strip plate, and a vertical groove for the movement of the vertical strip plate is formed in the left side of the back type frame (1).

6. The polishing apparatus for an eccentric sleeve of a speed reducer according to claim 1, wherein Two rotating bearings are mounted on the outer side of the bidirectional screw rod (9) and mounted on the surface of the H-shaped plate (8).

7. The polishing apparatus for an eccentric sleeve of a speed reducer according to claim 1, wherein A linear groove is formed in the top of the H-shaped plate (8), and the vertical plate (10) is slidingly arranged in the inside of the linear groove.

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