High-precision rotary speed reducer for coal mine gas extraction machinery

Abstract

The utility model relates to the technical field of speed reducers, in particular to a high-precision rotary speed reducer for coal mine gas extraction machinery, which comprises a box body, a transmission shaft and an output shaft are rotatably connected in the box body, a first gear is fixedly sleeved on the shaft wall of the transmission shaft, a second gear is fixedly sleeved on the shaft wall of the output shaft, and the first gear is meshed with the second gear. The first gear and the second gear are meshed with each other, and the inner wall of the top end of the box body is fixedly connected with a hanging plate. If the output shaft deviates, the induction ring pushes the moving plate to move along the inner wall of the groove, the spring is compressed, the connecting rod and the adapter block can be driven to move, the side wall of the adapter block is tightly pressed on the side wall of the adapter seat, and the output shaft is driven to rotate. The controller can carry out power supply alarm processing on the alarm through the first electric wire, the patch cord and the second electric wire, the deviation of the output shaft can be found in time and adjusted, and the transmission effect of the speed reducer can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a high-precision rotary reducer for coal mine gas extraction machinery. Background Art

[0002] During coal mining, gas in the coal seam is extracted through a series of technologies and equipment to ensure the safety of the mine and reduce the harm of gas to workers and equipment. In the prior art, in order to increase the torque of the pump body and improve the gas extraction efficiency of the pump body during coal mine gas extraction, a reducer auxiliary transmission is required to ensure the use effect of the pump body. During the use of the reducer, if the transmission shaft shakes or tilts and cannot be discovered in time, it will affect the stability of the reducer transmission to the pump body and affect the transmission effect of the pump body. Therefore, the utility model designs a high-precision rotary reducer for coal mine gas extraction machinery. Utility Model Content

[0003] The purpose of the utility model is to solve the problem in the prior art that during the use of the reducer, if the transmission shaft shakes or tilts, it cannot be discovered in time, which will affect the stability of the reducer's transmission to the pump body and the transmission effect of the pump body. A high-precision rotary reducer for coal mine gas extraction machinery is proposed to solve the problem that during the use of the reducer, if the transmission shaft shakes or tilts, it cannot be discovered in time, which will affect the stability of the reducer's transmission to the pump body and the transmission effect of the pump body.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A high-precision rotary reducer for coal mine gas extraction machinery comprises a housing, wherein a transmission shaft and an output shaft are rotatably connected inside the housing, a first gear is fixedly sleeved on the shaft wall of the transmission shaft, a second gear is fixedly sleeved on the shaft wall of the output shaft, the first gear and the second gear are meshed with each other, a hanging plate is fixedly connected to the inner wall of the top end of the housing, a controller is fixedly connected to the inner wall of the hanging plate, a groove is provided on the inner wall of the hanging plate located in the cavity, a movable plate is slidably provided on the inner wall of the hanging plate located in the groove, a spring is fixedly connected to the side wall of the movable plate, an end of the spring facing away from the movable plate is fixedly connected to the inner wall of the hanging plate located in the groove, a connecting rod is fixedly connected to the side wall of the movable plate, an adapter block is fixedly connected to the inner wall of the hanging plate located in the groove, and an alarm is provided at the bottom of the hanging plate.

[0006] Preferably, a connecting frame is fixedly connected to the side wall of the box body, and a first bolt is threadedly connected to the connecting portion between the connecting frame and the box body.

[0007] Preferably, a stabilizing ring is rotatably sleeved on the shaft wall of the transmission shaft, a connecting plate is fixedly connected to the side wall of the stabilizing ring, and a side of the connecting plate facing away from the stabilizing ring is fixedly connected to the inner wall of the box.

[0008] Preferably, a second bolt is threadedly connected to the connection between the hanging plate and the box body.

[0009] Preferably, a cavity is formed in the inner wall of the hanging plate, the shaft body of the output shaft penetrates through the cavity, an induction ring is fixedly sleeved on the shaft body of the output shaft inside the cavity, and the side wall of the induction ring is slidably arranged on the inner wall of the hanging plate where the cavity is located.

[0010] Preferably, a plurality of balls are arranged to roll around the inner wall of the induction ring, and the side walls of the plurality of balls are respectively arranged to roll on the inner wall of the hanging plate where the cavity is located.

[0011] Preferably, a first wire and a second wire are electrically connected to the side walls of the controller and the alarm respectively, the end parts of the first wire and the second wire respectively extend to the side wall of the adapter seat, and a patch cord is arranged inside the adapter block.

[0012] Preferably, the side of the moving plate opposite to the induction ring is set as an arc surface, and a rubber protection pad is fixedly connected to the inner wall of the arc surface of the moving plate.

[0013] Preferably, a guide block is fixedly connected to the side wall of the moving plate, a guide groove is formed in the inner wall of the hanging plate where the groove is located, and the guide block is slidably arranged on the inner wall of the guide groove.

[0014] Compared with the prior art, the utility model provides a high-precision rotary reducer for a coal mine gas extraction machine, which has the following beneficial effects:

[0015] 1. If the output shaft is offset, the induction ring will push the moving plate to displace along the inner wall of the groove, the spring will be compressed, the connecting rod and the adapter block can be driven to move, and the side wall of the adapter block will be pressed against the side wall of the adapter seat until the controller can supply power to the alarm for alarm processing through the first wire, the patch cord and the second wire, so that the offset of the output shaft can be detected and adjusted in time, and the transmission effect of the reducer can be ensured.

[0016] 2. The rotation of the transmission shaft can drive the first gear to rotate, the rotation of the first gear can drive the second gear to rotate, and the rotation of the second gear makes the output shaft rotate, so that speed reduction transmission processing can be carried out, the use stability of the reducer can be improved, the stabilizing ring and the connecting plate can improve the stability of the first gear and the transmission shaft, and the induction ring rotates along the inner wall of the cavity of the hanging plate, which can improve the rotation stability of the output shaft.

[0017] 3. The friction between the induction ring and the inner wall of the cavity of the hanging plate can be reduced through the balls on the side wall of the induction ring, the rotation stability can be improved, the rubber protection pad can improve the protection effect on the moving plate to prevent the moving plate from being worn, and the guide block slides along the inner wall of the guide groove, which can improve the moving stability of the moving plate. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural view of the present utility model;

[0019] Figure 2 is Figure 1 an enlarged schematic structural view of the partial A part in;

[0020] Figure 3 is Figure 1 a three-dimensional structural view of the connecting plate in;

[0021] Figure 4 is Figure 2 a three-dimensional structural view of the moving plate in;

[0022] Figure 5 is Figure 2 a three-dimensional structural view of the induction ring in.

[0023] In the figure: 1 box body, 2 transmission shaft, 3 output shaft, 4 first gear, 5 second gear, 6 connecting frame, 7 first bolt, 8 stabilizing ring, 9 connecting plate, 10 hanging plate, 11 second bolt, 12 induction ring, 13 ball, 14 controller, 15 moving plate, 16 spring, 17 connecting rod, 18 adapter block, 19 adapter seat, 20 first wire, 21 second wire, 22 alarm, 23 guide block, 24 rubber protective pad, 25 patch cord. Detailed Description of the Preferred Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Embodiment 1

[0026] Refer to Figures 1-5, A high-precision rotary reducer for a coal mine gas extraction machine, comprising a box body 1. Inside the box body 1, a transmission shaft 2 and an output shaft 3 are rotatably connected. A first gear 4 is fixedly sleeved on the shaft wall of the transmission shaft 2, and a second gear 5 is fixedly sleeved on the shaft wall of the output shaft 3. The first gear 4 and the second gear 5 are meshed with each other. The inner wall of the top end of the box body 1 is fixedly connected with a hanging plate 10. The inner wall of the hanging plate 10 is fixedly connected with a controller 14. The inner wall of the hanging plate 10 where it is located in the cavity is provided with a groove. A moving plate 15 is slidably arranged on the inner wall of the groove of the hanging plate 10. A spring 16 is fixedly connected to the side wall of the moving plate 15. The end of the spring 16 away from the moving plate 15 is fixedly connected to the inner wall of the groove of the hanging plate 10. A connecting rod 17 is fixedly connected to the side wall of the moving plate 15. The end of the connecting rod 17 away from the moving plate 15 is fixedly connected with a transfer block 18. A transfer seat 19 is fixedly connected to the inner wall of the groove of the hanging plate 10. An alarm 22 is arranged at the bottom of the hanging plate 10.

[0027] A connecting frame 6 is fixedly connected to the side wall of the box body 1. At the connection of the connecting frame 6 and the box body 1, a first bolt 7 is simultaneously threadedly connected. A stabilizing ring 8 is rotatably sleeved on the shaft wall of the transmission shaft 2. A connecting plate 9 is fixedly connected to the side wall of the stabilizing ring 8. The side of the connecting plate 9 away from the stabilizing ring 8 is fixedly connected to the inner wall of the box body 1. The connection between the hanging plate 10 and the box body 1 is threadedly connected with a second bolt 11. A cavity is formed in the inner wall of the hanging plate 10. The shaft body of the output shaft 3 penetrates through the cavity. An induction ring 12 is fixedly sleeved on the shaft body of the output shaft 3 inside the cavity.

[0028] The side walls of the controller 14 and the alarm 22 are electrically connected with a first wire 20 and a second wire 21 respectively. The ends of the first wire 20 and the second wire 21 respectively extend to the side wall of the transfer seat 19. A transfer wire 25 is arranged inside the transfer block 18.

[0029] During use, the connecting frame 6 can be fixedly arranged at a specified position through the first bolt 7, which can improve the stability of the placement of the box body 1. Then, when the transmission shaft 2 rotates, it can drive the first gear 4 to rotate. When the first gear 4 rotates, it can drive the second gear 5 to rotate. When the second gear 5 rotates, the output shaft 3 rotates, and speed reduction transmission processing can be carried out, which can improve the use stability of the reducer. The stabilizing ring 8 and the connecting plate 9 can improve the stability of the first gear 4 and the transmission shaft 2. The induction ring 12 rotates along the inner wall of the cavity of the hanging plate 10, which can improve the rotation stability of the output shaft 3. If the output shaft 3 is offset, the induction ring 12 will push the moving plate 15 to displace along the inner wall of the groove, causing the spring 16 to be compressed. It can drive the connecting rod 17 and the transfer block 18 to move, so that the side wall of the transfer block 18 is tightly pressed against the side wall of the transfer seat 19 until the controller 14 can supply power to the alarm 22 for alarm processing through the first wire 20, the transfer wire 25 and the second wire 21. It can be timely detected and adjusted when the output shaft 3 is offset, and the transmission effect of the reducer can be ensured.

[0030] Example 2

[0031] Refer to Figures 1-5 , the side wall of the induction ring 12 is slidably arranged on the inner wall of the suspension plate 10 located in the cavity, and a plurality of balls 13 are arranged around the inner wall of the induction ring 12 in a rolling manner. The side walls of the plurality of balls 13 are respectively arranged on the inner wall of the suspension plate 10 located in the cavity in a rolling manner.

[0032] The balls 13 on the side wall of the induction ring 12 can reduce the friction between the induction ring 12 and the inner wall of the cavity of the suspension plate 10, and can improve the stability of rotation.

[0033] Example 3

[0034] Refer to Figures 1-5 , one side of the moving plate 15 relative to the induction ring 12 is set as an arc surface. A rubber protection pad 24 is fixedly connected to the inner wall of the arc surface of the moving plate 15. A guide block 23 is fixedly connected to the side wall of the moving plate 15. A guide groove is opened on the inner wall of the suspension plate 10 located in the groove. The guide block 23 is slidably arranged on the inner wall of the guide groove.

[0035] The rubber protection pad 24 can improve the protection effect on the moving plate 15 and prevent the moving plate 15 from being worn. The guide block 23 slides along the inner wall of the guide groove, which can improve the stability of the movement of the moving plate 15.

Claims

1. A high-precision rotary reducer for coal mine gas extraction machinery, comprising a housing (1), characterized in that: The housing (1) is rotatably connected to a transmission shaft (2) and an output shaft (3); a first gear (4) is fixedly sleeved on the shaft wall of the transmission shaft (2); a second gear (5) is fixedly sleeved on the shaft wall of the output shaft (3); the first gear (4) and the second gear (5) are meshed with each other; a hanging plate (10) is fixedly connected to the inner wall of the top end of the housing (1); a controller (14) is fixedly connected to the inner wall of the hanging plate (10); a groove is provided on the inner wall of the cavity where the hanging plate (10) is located; the hanging plate (10) is located in the groove. A movable plate (15) is slidably provided on the inner wall, a spring (16) is fixedly connected to the side wall of the movable plate (15), one end of the spring (16) facing away from the movable plate (15) is fixedly connected to the inner wall of the hanging plate (10) located in the groove, a connecting rod (17) is fixedly connected to the side wall of the movable plate (15), one end of the connecting rod (17) facing away from the movable plate (15) is fixedly connected to a transfer block (18), the inner wall of the hanging plate (10) located in the groove is fixedly connected to a transfer seat (19), and an alarm (22) is provided at the bottom of the hanging plate (10).

2. A high-precision rotary reducer for coal mine gas extraction machinery according to claim 1, characterized in that: A connecting frame (6) is fixedly connected to the side wall of the box body (1), and a first bolt (7) is threadedly connected to the connecting portion between the connecting frame (6) and the box body (1).

3. The high-precision rotary reducer for coal mine gas extraction machinery according to claim 1, characterized in that: A stabilizing ring (8) is rotatably sleeved on the shaft wall of the transmission shaft (2), a connecting plate (9) is fixedly connected to the side wall of the stabilizing ring (8), and the side of the connecting plate (9) facing away from the stabilizing ring (8) is fixedly connected to the inner wall of the box body (1).

4. The high-precision rotary reducer for coal mine gas extraction machinery according to claim 1, characterized in that: A second bolt (11) is threadedly connected at the connection point between the hanging plate (10) and the box body (1).

5. The high-precision rotary reducer for coal mine gas extraction machinery according to claim 1, characterized in that: The inner wall of the hanging plate (10) is provided with a cavity, the shaft body of the output shaft (3) is arranged to pass through the cavity, an induction ring (12) is fixedly sleeved on the shaft body of the output shaft (3) located inside the cavity, and the side wall of the induction ring (12) is slidably arranged on the inner wall of the hanging plate (10) located in the cavity.

6. The high-precision rotary reducer for coal mine gas extraction machinery according to claim 5, characterized in that: A plurality of balls (13) are provided rollingly around the inner wall of the induction ring (12), and the side walls of the plurality of balls (13) are respectively rollingly provided on the inner wall of the hanging plate (10) located in the cavity.

7. The high-precision rotary reducer for coal mine gas extraction machinery according to claim 1, characterized in that: The side walls of the controller (14) and the alarm (22) are electrically connected to a first electric wire (20) and a second electric wire (21), respectively; the ends of the first electric wire (20) and the second electric wire (21) extend to the side walls of the adapter seat (19), respectively; and an adapter wire (25) is provided on the inner wall of the adapter block (18).

8. The high-precision rotary reducer for coal mine gas extraction machinery according to claim 1, characterized in that: One side of the movable plate (15) relative to the induction ring (12) is arranged as an arc surface, and a rubber protective pad (24) is fixedly connected to the inner wall of the movable plate (15) located on the arc surface.

9. The high-precision rotary reducer for coal mine gas extraction machinery according to claim 1, characterized in that: A guide block (23) is fixedly connected to the side wall of the movable plate (15); a guide groove is provided on the inner wall of the groove of the hanging plate (10); and the guide block (23) is slidably arranged on the inner wall of the guide groove.

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