Transmission mechanism of underground coal mine creeper

Abstract

The utility model discloses a transmission mechanism of an underground coal mine creeper. The transmission mechanism comprises a speed reducer shaft and a chain wheel shaft which are located on the side of a mine car track. The end, close to the sprocket shaft, of the reducer shaft is connected with a first connecting disc. The end, close to the speed reducer shaft, of the chain wheel shaft is connected with a second connecting disc. The first connecting disc and the second connecting disc are connected through a transmission disc; a first straight groove and a second straight groove are formed in the two side faces of the transmission disc respectively, a first positioning strip matched with the first straight groove is arranged on the end face of the first connecting disc, and a second positioning strip matched with the second straight groove is arranged on the end face of the second connecting disc. The connecting end structure of the speed reducer shaft and the chain wheel shaft can be standardized through the first connecting disc and the second connecting disc, then the first connecting disc and the second connecting disc are connected through the transmission disc, and shaft deviation generated between the speed reducer shaft and the chain wheel shaft can be tolerated through the connecting mode. And the influence of shaft offset on the transmission mechanism is reduced as much as possible.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission equipment of a coal mine climbing machine, in particular to a transmission mechanism of a coal mine underground climbing machine. Background Art

[0002] A climbing machine is a device that pushes vehicles from a low place to a high place on an inclined track. In coal mines, climbing machines are usually used as the power mechanism of mine cars to drive mine cars to run on inclined tracks.

[0003] The crawler consists of a reducer and a sprocket, which are driven by a transmission mechanism. The sprocket then drives the mine car through a chain. In actual use, due to the heavy load of the mine car, the shaft between the sprocket and the reducer is misaligned, causing the transmission mechanism to malfunction. Utility Model Content

[0004] The utility model aims to provide a transmission mechanism for a crawler machine in a coal mine, so as to reduce the shaft offset between the sprocket shaft and the reducer shaft.

[0005] The utility model adopts the following technical solutions: a transmission mechanism of a climbing machine in a coal mine, comprising a reducer shaft and a sprocket shaft located on the side of the mine car track;

[0006] The end of the reducer shaft close to the sprocket shaft is connected with a first connecting plate;

[0007] The end of the sprocket shaft close to the reducer shaft is connected with a second connecting plate;

[0008] The first connecting disk and the second connecting disk are connected via a transmission disk;

[0009] Among them, the two sides of the transmission plate are respectively provided with a first straight groove and a second straight groove, the end surface of the first connecting plate is provided with a first positioning strip matching the first straight groove, and the end surface of the second connecting plate is provided with a second positioning strip matching the second straight groove.

[0010] Furthermore, the cross-sections of the first positioning bar and the second positioning bar are both rectangular.

[0011] Furthermore, the first straight groove and the second straight groove both pass through the axis of the transmission plate.

[0012] Furthermore, the small angle formed by the first straight groove and the second groove is greater than or equal to 30° and less than or equal to 90°.

[0013] Furthermore, the transmission disc is provided with an axial hole, and the axial hole extends from one side surface of the transmission disc to the other side surface.

[0014] Furthermore, the diameters of the first connecting disk, the second connecting disk and the transmission disk are equal.

[0015] Furthermore, the first connecting disc and the reducer shaft are key-connected;

[0016] The second connecting plate and the sprocket shaft are key-connected.

[0017] The beneficial effect of the present invention is that the present invention can standardize the connection end structure of the reducer shaft and the sprocket shaft through the first connecting plate and the second connecting plate, and then connect the first connecting plate and the second connecting plate through the transmission plate. This connection method can tolerate the axial offset between the reducer shaft and the sprocket shaft, and minimize the impact of the axial offset on the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a transmission mechanism of a coal mine underground climbing machine in an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the use structure of the first connecting disk in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the use structure of the second connecting disk in an embodiment of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the transmission plate in the embodiment of the present utility model.

[0022] Among them: 10. reducer; 11. reducer shaft; 20. sprocket; 21. sprocket shaft; 31. first connecting plate; 32. second connecting plate; 33. transmission plate. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] The utility model discloses a transmission mechanism of a climbing machine in a coal mine. Figure 1 As shown, it includes a reducer shaft 11 and a sprocket shaft 21 located below the mine car track; the end of the reducer shaft 11 close to the sprocket shaft 21 is connected to a first connecting plate 31; the end of the sprocket shaft 21 close to the reducer shaft 11 is connected to a second connecting plate 32; the first connecting plate 31 and the second connecting plate 32 are connected by a transmission plate 33; wherein, as Figure 2 、 Figure 3 and Figure 4 As shown, a first straight groove and a second straight groove are respectively provided on the two side surfaces of the transmission disk 33, a first positioning strip matching the first straight groove is provided on the end surface of the first connecting disk 31, and a second positioning strip matching the second straight groove is provided on the end surface of the second connecting disk 32.

[0025] The utility model can standardize the connection end structure of the reducer shaft and the sprocket shaft through the first connecting plate and the second connecting plate, and then connect the first connecting plate and the second connecting plate through the transmission plate. This connection method can tolerate the axial offset between the reducer shaft and the sprocket shaft, and minimize the impact of the axial offset on the transmission mechanism.

[0026] In the present invention, when the reducer 10 vibrates and causes the reducer shaft 11 to deflect, the first connecting plate 31 will deflect under the influence of the reducer shaft 11. This is because the first positioning bar thereon will be displaced relative to the first straight groove. However, this will not have any impact on the sprocket shaft 21 on the other side. Similarly, when the sprocket 20 deflects under the influence of the chain (mine car), it will not affect the stability of the reducer shaft 11.

[0027] The cross-sections of the first positioning bar and the second positioning bar are both rectangular. The rectangular design can provide more contact surfaces between the positioning bar and the straight groove, thereby increasing the limiting effect and preventing circumferential offset between the two.

[0028] In addition, the cross-section of the positioning bar and the straight groove can also be a regular hexagon, a semicircle, a diamond, etc. These different shapes have different characteristics and can be selected according to needs.

[0029] In this embodiment, the first straight groove and the second straight groove both pass through the axis of the transmission plate 33. This ensures that the two straight grooves are located at the center of the transmission plate 33 as much as possible, making the length of the straight grooves larger and the allowable axis offset larger.

[0030] As a specific embodiment, the small angle formed by the first straight groove and the second groove is greater than or equal to 30 degrees and less than or equal to 90 degrees. Most preferably, the angle is 90 degrees. This arrangement can reduce the radial force generated by the shaft offset on the transmission plate 33, thereby reducing the mechanical performance requirements of the transmission plate 33.

[0031] Furthermore, the transmission disc 33 has an axial hole extending from one side of the transmission disc 33 to the other. This axial hole design reduces the weight of the transmission disc 33, thereby reducing the weight of the equipment. However, the first and second positioning bars still pass through the diameter of the first connecting disc 31 or the second connecting disc 32, which also helps accommodate larger shaft offsets.

[0032] The diameters of the first connecting disk 31 , the second connecting disk 32 and the transmission disk 33 are equal, which is beneficial to the angle design of the positioning bar.

[0033] In one embodiment, the first connecting plate 31 is key-connected to the reducer shaft 11, and the second connecting plate 32 is key-connected to the sprocket shaft 21. The key connection can increase the connection strength.

Claims

1. A transmission mechanism for a coal mine underground climbing machine, characterized in that: It includes a speed reducer shaft (11) and a sprocket shaft (21) located on the side of the mine car track; The end of the reducer shaft (11) close to the sprocket shaft (21) is connected to a first connecting plate (31); The end of the sprocket shaft (21) close to the reducer shaft (11) is connected to a second connecting plate (32); The first connecting disk (31) and the second connecting disk (32) are connected via a transmission disk (33); Wherein, a first straight groove and a second straight groove are respectively provided on the two side surfaces of the transmission disk (33), a first positioning strip matching the first straight groove is provided on the end surface of the first connecting disk (31), and a second positioning strip matching the second straight groove is provided on the end surface of the second connecting disk (32).

2. The transmission mechanism of the underground climbing machine for coal mines according to claim 1, characterized in that: The cross sections of the first positioning strip and the second positioning strip are both rectangular.

3. The transmission mechanism of the underground climbing machine for coal mines according to claim 1, characterized in that: The first straight groove and the second straight groove both pass through the axis of the transmission plate (33).

4. The transmission mechanism of the underground climbing machine in a coal mine according to claim 2 or 3, characterized in that: The small included angle formed by the first straight groove and the second groove is greater than or equal to 30° and less than or equal to 90°.

5. The transmission mechanism of the underground climbing machine in a coal mine according to claim 2, characterized in that: The transmission disc (33) is provided with an axial center hole, and the axial center hole extends from one side surface of the transmission disc (33) to the other side surface.

6. The transmission mechanism of the underground climbing machine in a coal mine according to claim 5, characterized in that: The diameters of the first connecting disc (31), the second connecting disc (32) and the transmission disc (33) are equal.

7. The transmission mechanism of the underground climbing machine in a coal mine according to claim 5, characterized in that: The first connecting disk (31) and the reducer shaft (11) are key-connected; The second connecting plate (32) and the sprocket shaft (21) are key-connected.

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