Buffer device for driving roller

Abstract

The utility model relates to the technical field of driving roller protection devices, in particular to a buffering device for a driving roller, which comprises a speed reducer flange plate, a bearing seat, a coupler and a pneumatic disc brake, the speed reducer flange plate is used for being fixedly connected with a speed reducer, and the bearing seat is used for being fixedly connected with a machine shell on a polishing machine or a film laminating machine. One end of the coupler is rotationally connected with the speed reducer flange plate, the other end of the coupler is rotationally connected with the bearing seat, the brake disc and the motor chain wheel are arranged in the middle of the coupler in a sleeved mode, and the pneumatic disc brake is fixedly connected to the side portion of the bearing seat and movably connected with the brake disc. And a transmission chain is sleeved between the motor chain wheel and a driving chain wheel on the driving roller. According to the buffering device for the driving roller, the transmission chain can be prevented from being broken by hard dragging, the speed reducer and the servo motor can be stopped to avoid damage, and the service life of the transmission chain, the service life of the speed reducer and the service life of the servo motor are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of active roller protection devices, in particular to a buffer device for an active roller. Background Art

[0002] The reducer and servo motor on the polishing machine or laminating machine directly drive the active roller to rotate, and then drive the driven roller and chain to rotate. The sudden stop of the active roller will cause the chain to break frequently and damage the reducer and servo motor. In severe cases, the chain will break two to three times a day. Connecting the chain every day will increase the labor intensity, and multiple machine shutdowns will affect work efficiency.

[0003] There is an urgent need to design a buffer device for the active roller to reduce the frequent chain breaking caused by the emergency stop of the active roller, reduce the damage to the reducer and servo motor, reduce the labor maintenance cost, and at the same time reduce the machine downtime, save time for machine production to produce more products, and improve work efficiency. Utility Model Content

[0004] In order to solve the technical problems of frequent chain breaking and damage to the reducer and servo motor caused by the sudden stop of the active roller on the polishing machine or laminating machine, the utility model provides a buffer device for the active roller, which can not only prevent the transmission chain from being broken by hard pulling, but also stop the reducer and servo motor to avoid damage, thereby improving the service life of the transmission chain, reducer and servo motor.

[0005] The utility model provides a buffer device for an active roller, comprising a reducer flange, a bearing seat, a coupling and a pneumatic disc brake, wherein the reducer flange is used to be fixedly connected to the reducer, the bearing seat is used to be fixedly connected to the casing of a polishing machine or a laminating machine, one end of the coupling is rotatably connected to the reducer flange, and the other end of the coupling is rotatably connected to the bearing seat, a brake disc and a motor sprocket are sleeved in the middle of the coupling, the pneumatic disc brake is fixedly connected to the side of the bearing seat, and the pneumatic disc brake and the brake disc are movably connected, and a transmission chain is sleeved between the motor sprocket and the active sprocket on the active roller.

[0006] Furthermore, the pneumatic disc brake is provided with a brake groove, the brake groove includes two parallel brake surfaces, and the disc surface of the brake disc is located between the two brake surfaces and is parallel to them.

[0007] Furthermore, a first bearing is disposed within the reducer flange, a first sleeve is disposed between the reducer flange and the first bearing, and an end of the coupling passes through the first bearing and is fixedly connected to an output end of the reducer. When the reducer is started, the coupling and the first bearing are driven to rotate.

[0008] Furthermore, a first end cap is provided at one end of the reducer flange away from the reducer, and the end of the coupling passes through the first end cap and the first bearing in sequence. The first end cap is used to press the end of the coupling to ensure that the coupling remains stable.

[0009] Furthermore, a sealing ring is provided between the first end cover and the coupling, and between the reducer flange and the right end of the coupling. The sealing ring prevents lubricating oil from leaking between the first end cover and the coupling, and between the reducer flange and the coupling, thereby improving overall sealing.

[0010] Furthermore, a second bearing is provided in the bearing seat, a second sleeve is provided between the bearing seat and the second bearing, and an end of the coupling is fixedly connected to the second bearing. When the reducer is started, it drives the coupling and the second bearing to rotate.

[0011] Furthermore, a second end cap is provided at one end of the bearing seat, and the end of the coupling passes through the second end cap and is fixedly connected to the second bearing. The function of the second end cap is to press the end of the coupling to ensure that the coupling remains stable.

[0012] Furthermore, the buffer device further comprises a support, the support being fixedly connected to the housing, and the bearing seat being arranged on the support, and the support supporting the bearing seat so as to enable the bearing seat to be fixed to the housing.

[0013] Compared with the prior art, the present invention has the following technical effects:

[0014] When the buffer device is in use, the reducer flange is installed on the reducer of the polishing machine or laminating machine, and the bearing seat is installed on the housing of the polishing machine or laminating machine. The two ends of the coupling are rotatably connected to the reducer flange and bearing seat, and the coupling must be fixedly connected to the output end of the reducer. Generally, the input end of the reducer is fixedly connected to the output shaft of the servo motor.

[0015] When the active roller stops suddenly, the pneumatic disc brake in the utility model is started (the pneumatic disc brake is air-intaken), and the pneumatic disc brake contacts the brake disc to stop the brake disc from rotating, thereby stopping the coupling from rotating. The coupling stops rotating, which can prevent the transmission chain from being broken by hard pulling, and secondly, shut down the reducer to avoid damage. When the reducer stops, it will drive the servo motor to stop, thereby preventing the servo motor from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic cross-sectional view of a buffer device for an active roller of the utility model;

[0017] Figure 2 This utility model Figure 1A schematic diagram of the structure of the middle A;

[0018] The reference numerals in the accompanying drawings are:

[0019] 1. Reducer flange; 11. First bearing; 12. First bushing; 13. First end cover; 14. Sealing ring; 2. Bearing seat; 21. Second bearing; 22. Second bushing; 23. Second end cover; 3. Coupling; 4. Pneumatic disc brake; 5. Brake disc; 6. Motor sprocket; 7. Support. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-2 The figure shows a buffer device for a driving roller, comprising a reducer flange 1, a bearing seat 2, a coupling 3, and a pneumatic disc brake 4. The reducer flange 1 is fixedly connected to the reducer, the bearing seat 2 is fixedly connected to the housing of a polishing machine or laminating machine, one end of the coupling 3 is rotatably connected to the reducer flange 1, and the other end of the coupling 3 is rotatably connected to the bearing seat 2. A brake disc 5 and a motor sprocket 6 are sleeved in the middle of the coupling 3. The pneumatic disc brake 4 is fixedly connected to the side of the bearing seat 2 and movably connected to the brake disc 5. A transmission chain is sleeved between the motor sprocket 6 and the driving sprocket of the driving roller, specifically between the motor sprocket 6 and the driving sprocket of the driving roller of the polishing machine or laminating machine. In this embodiment, the pneumatic disc brake 4 is a DBF-L10 model. The coupling 3 is a LM105 plum blossom coupling 3. It is worth noting that the buffer device of this embodiment is not limited to use on a polishing machine or a laminating machine, but can also be used on other equipment using an active roller.

[0022] When the buffer device is in use, the reducer flange 1 is mounted on the reducer of the polishing machine or laminating machine (not shown in the figure, it is located to the right of the buffer device), the bearing seat 2 is mounted on the housing of the polishing machine or laminating machine (not shown in the figure), and the ends of the coupling 3 are rotatably connected to the reducer flange 1 and the bearing seat 2. The coupling 3 is also fixedly connected to the output end of the reducer. Generally, the input end of the reducer (not shown in the figure) is fixedly connected to the output shaft of the servo motor.

[0023] After the servo motor drives the reducer to start, it will drive the coupling 3 to rotate, and then drive the motor sprocket 6, the transmission chain, the active sprocket and the active roller to rotate. The transmission chain is responsible for transmission to enable the active roller to rotate.

[0024] When the active roller stops suddenly, the pneumatic disc brake 4 in this embodiment is activated (the pneumatic disc brake 4 is supplied with air). The pneumatic disc brake 4 contacts the brake disc 5, causing the brake disc 5 to stop rotating, thereby stopping the coupling 3. The coupling 3 stops rotating, firstly, to prevent the transmission chain from being broken by force, and secondly, to shut down the reducer to prevent damage. When the reducer stops, it will drive the servo motor to stop, thereby preventing damage to the servo motor. After the pneumatic disc brake 4 is evacuated, the pneumatic disc brake 4 and the brake disc 5 are separated, and the coupling 3 can then rotate normally.

[0025] The buffer device of this embodiment can not only prevent the transmission chain from being broken by hard pulling, but also prevent the speed reducer and servo motor from being damaged, thereby increasing the service life of the transmission chain, speed reducer and servo motor.

[0026] As one possible embodiment, the pneumatic disc brake 4 is provided with a brake groove, which includes two parallel braking surfaces. The disc surface of the brake disc 5 is located between and parallel to the two braking surfaces. The structure of the pneumatic disc brake 4 is conventional and will not be further described here. When air is introduced into the pneumatic disc brake 4, the disc surface of the brake disc 5 contacts one of the braking surfaces, causing the brake disc 5 to stop rotating. After the air is exhausted from the pneumatic disc brake 4, the disc surface of the brake disc 5 separates from one of the braking surfaces, and the coupling 3 can then rotate normally.

[0027] In one embodiment, a first bearing 11 is installed within the reducer flange 1. A first sleeve 12 is disposed between the reducer flange 1 and the first bearing 11. The end of the coupling 3 passes through the first bearing 11 and is fixedly connected to the output end of the reducer. In this embodiment, the first bearing 11 is a spherical roller bearing model 22214C. When the reducer is started, it drives the coupling 3 and the first bearing 11 to rotate.

[0028] As an embodiment, a first end cap 13 is provided at the end of the reducer flange 1 away from the reducer, and the end of the coupling 3 passes through the first end cap 13 and the first bearing 11 in sequence. The first end cap 13 is fixedly connected to the reducer flange 1 with bolts. The function of the first end cap 13 is to press the end of the coupling 3 to ensure that the coupling 3 remains stable.

[0029] As an embodiment, a sealing ring 14 is provided between the first end cover 13 and the coupling 3, and between the reducer flange 1 and the right end of the coupling 3. The sealing ring 14 prevents lubricating oil from leaking between the first end cover 13 and the coupling 3, and between the reducer flange 1 and the coupling 3, thereby improving the overall sealing performance.

[0030] In one embodiment, a second bearing 21 is disposed within the bearing seat 2, a second sleeve 22 is disposed between the bearing seat 2 and the second bearing 21, and the end of the coupling 3 is fixedly connected to the second bearing 21. In this embodiment, the second bearing 21 is a deep groove ball bearing. When the reducer is started, it drives the coupling 3 and the second bearing 21 to rotate.

[0031] As an embodiment, a second end cap 23 is provided at one end of the bearing seat 2, and the end of the coupling 3 passes through the second end cap 23 and is fixedly connected to the second bearing 21. The second end cap 23 is fixedly connected to the bearing seat 2 with bolts. The function of the second end cap 23 is to press the end of the coupling 3 to ensure that the coupling 3 remains stable.

[0032] As an embodiment, the buffer device further includes a support 7, which is fixedly connected to the housing, and the bearing seat 2 is disposed on the support 7. The support 7 supports the bearing seat 2, and a screw hole is provided on the support 7. The support 7 is fixedly connected to the housing of the polishing machine or laminating machine by bolts, thereby fixing the bearing seat 2 to the housing.

[0033] As an implementable embodiment, screw holes are provided on the reducer flange 1, and the reducer flange 1 is fixedly connected to the reducer of the polishing machine or the laminating machine by using bolts.

[0034] The embodiments described above are only preferred embodiments of the present invention and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art, it is of course possible to easily make other implementation methods by replacing or changing the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A buffer device for an active roller, characterized in that: The invention comprises a reducer flange (1), a bearing seat (2), a coupling (3) and a pneumatic disc brake (4), wherein the reducer flange (1) is used for being fixedly connected to the reducer, the bearing seat (2) is used for being fixedly connected to the housing of a polishing machine or a laminating machine, one end of the coupling (3) is rotatably connected to the reducer flange (1), and the other end of the coupling (3) is rotatably connected to the bearing seat (2), a brake disc (5) and a motor sprocket (6) are sleeved on the middle part of the coupling (3), the pneumatic disc brake (4) is fixedly connected to the side of the bearing seat (2), and the pneumatic disc brake (4) and the brake disc (5) are movably connected, and a transmission chain is sleeved between the motor sprocket (6) and the active sprocket on the active roller.

2. The buffer device according to claim 1, characterized in that The pneumatic disc brake (4) is provided with a brake groove, the brake groove includes two parallel brake surfaces, and the disc surface of the brake disc (5) is located between the two brake surfaces and is parallel to the two brake surfaces.

3. The buffer device according to claim 1, characterized in that A first bearing (11) is provided in the reducer flange (1), a first sleeve (12) is provided between the reducer flange (1) and the first bearing (11), and an end of the coupling (3) passes through the first bearing (11) and is fixedly connected to the output end of the reducer.

4. The buffer device according to claim 3, characterized in that: A first end cover (13) is provided at one end of the reducer flange (1) away from the reducer, and an end of the coupling (3) passes through the first end cover (13) and the first bearing (11) in sequence.

5. The buffer device according to claim 4, characterized in that: A sealing ring (14) is provided between the first end cover (13) and the coupling (3), and between the reducer flange (1) and the right end of the coupling (3).

6. The buffer device according to claim 1, characterized in that A second bearing (21) is provided in the bearing seat (2), a second sleeve (22) is provided between the bearing seat (2) and the second bearing (21), and an end portion of the coupling (3) is fixedly connected to the second bearing (21).

7. The buffer device according to claim 6, characterized in that A second end cover (23) is provided at one end of the bearing seat (2), and an end of the coupling (3) passes through the second end cover (23) and is fixedly connected to the second bearing (21).

8. The buffer device according to claim 1, characterized in that The buffer device further comprises a support (7), the support (7) is fixedly connected to the housing, and the bearing seat (2) is arranged on the support (7).

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