Transmission structure of walking box of thin seam mining machine

Abstract

The utility model discloses a transmission structure of a walking box of a thin seam coal mining machine, which relates to the technical field of coal mining equipment and comprises a coal mining machine walking box body, a transmission walking wheel and a driving walking wheel which are mutually meshed and connected are rotatably arranged in the coal mining machine walking box body, and the driving walking wheel comprises a transmission shaft. An upper connecting plate and a lower connecting plate are arranged on the transmission shaft, and a plurality of pins are arranged between the upper connecting plate and the lower connecting plate; the pin structure is arranged on the upper connecting plate and the lower connecting plate to replace a cycloid gear, so that the whole structure is simpler, the machining is simple and convenient, the production and use cost is reduced, the pin is detachably arranged on the upper connecting plate and the lower connecting plate through the matching of the bolt and the nut, and the production efficiency is improved. The pin can be horizontally limited through the through groove formed in the upper connecting plate and the groove formed in the lower connecting plate, and the bolt penetrates through the hollow part of the pin and the lower connecting plate to vertically limit the pin.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining equipment, in particular to a transmission structure of a traveling box of a thin coal seam coal mining machine. Background Art

[0002] Coal mining machine is one of the main equipment in the comprehensive mining equipment. It is a large and complex system integrating mechanical, electrical and hydraulic functions. Coal mining machine can effectively reduce physical labor and improve safety, thereby achieving the goals of high output, high efficiency and low consumption.

[0003] The traditional travel box includes a transmission travel wheel and a driving travel wheel. One end of the transmission travel wheel is connected to the power end, and the driving travel wheel is connected to the output shaft of the coal mining machine. The power end will drive the transmission travel wheel to rotate, and the transmission travel wheel drives the meshing connected driving travel wheel to rotate. The driving travel wheel then drives the output shaft and the roller installed on the output shaft to rotate, thereby causing the roller to produce a cutting effect on the coal seam.

[0004] like Figure 1 , 2 As shown, the traditional driving walking wheel is a cycloid gear structure, in which a cycloid gear 4a and a web 4b on one side of the cycloid gear 4a are arranged on the transmission shaft 4. However, the structure of the walking wheel is complicated, and the machining center needs to be programmed to produce the milling tooth shape during machining, which makes production difficult, costly and time-consuming. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a transmission structure for a traveling box of a thin coal seam coal mining machine. By arranging a pin structure on the upper connecting plate and the lower connecting plate to replace the cycloid gear, the overall structure is simpler and easier to process, thereby reducing the cost of production and use.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a transmission structure of a thin coal seam coal mining machine walking box, including a coal mining machine walking box body, in which a transmission walking wheel and a driving walking wheel that are rotatably arranged and meshed with each other are arranged, and the driving walking wheel includes a transmission shaft, and an upper connecting plate and a lower connecting plate are arranged on the transmission shaft, and a plurality of pins are arranged between the upper connecting plate and the lower connecting plate.

[0007] Preferably, the number of the pins is 5.

[0008] Preferably, each of the pins is detachably arranged on the upper connecting plate and the lower connecting plate.

[0009] Preferably, the upper connecting plate is provided with a plurality of through slots, the lower connecting plate is provided with a plurality of grooves, each of the pins is inserted in the through slots and the grooves, a first countersunk hole is provided on the lower connecting plate and below each groove, the pin is a hollow structure and a second countersunk hole is provided on the top, bolts are provided in the hollow part of the pin and the second countersunk hole, and a nut threadably connected to the bolt is provided in the first countersunk hole.

[0010] Preferably, a positioning block is provided on the outer wall of each of the pins near the top, a plurality of positioning grooves are formed on the upper connecting plate, and the positioning block is arranged in the positioning grooves.

[0011] The utility model provides a transmission structure of a traveling box of a thin coal seam coal mining machine, which has the following beneficial effects:

[0012] 1. The utility model provides a pin structure on the upper connecting plate and the lower connecting plate to replace the cycloid gear, so that the overall structure is simpler, the processing is simpler, and the production and use costs are reduced;

[0013] 2. The utility model enables the column pin to be detachably arranged on the upper connecting plate and the lower connecting plate through the cooperation of bolts and nuts. The through grooves provided on the upper connecting plate and the grooves provided on the lower connecting plate can limit the column pin horizontally, and the bolts passing through the hollow part of the column pin and the lower connecting plate can limit the column pin vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of a conventional driving wheel;

[0015] Figure 2 It is a partial structural cross-sectional view of a conventional driving wheel;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the transmission running wheel and the driving running wheel of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the utility model when the column pin is detachably arranged on the upper connecting plate and the lower connecting plate;

[0019] Figure 6 This is a top view of the utility model when the column pin is detachably arranged on the upper connecting plate and the lower connecting plate.

[0020] In the figure: 1. coal mining machine travel box body; 2. transmission travel wheel; 3. driving travel wheel; 4. transmission shaft; 4a. cycloidal gear; 4b. web; 5. upper connecting plate; 5-1. through groove; 5-2. positioning groove; 6. lower connecting plate; 6-1. first countersunk hole; 6-2. groove; 7. pin; 7-1. second countersunk hole; 7-2. positioning block; 8. bolt; 9. nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 3-6 As shown, a transmission structure of a traveling box of a thin coal seam coal mining machine comprises a traveling box body 1 of the coal mining machine, wherein a transmission traveling wheel 2 and a driving traveling wheel 3 which are meshed and connected with each other are rotatably arranged in the traveling box body 1 of the coal mining machine, wherein the driving traveling wheel 3 comprises a transmission shaft 4, wherein an upper connecting plate 5 and a lower connecting plate 6 are arranged on the transmission shaft 4, and a plurality of column pins 7 are arranged between the upper connecting plate 5 and the lower connecting plate 6; the number of the column pins 7 is 5; each of the column pins 7 is detachably arranged on the upper connecting plate 5 and the lower connecting plate 6; a plurality of through grooves 5-1 are provided on the upper connecting plate 5, and a plurality of grooves are provided on the lower connecting plate 6 6-2, each of the pins 7 is inserted in the through groove 5-1 and the groove 6-2, a first countersunk hole 6-1 is provided on the lower connecting plate 6 and below each groove 6-2, the pin 7 is a hollow structure and a second countersunk hole 7-1 is provided on the top, a bolt 8 is provided in the hollow part of the pin 7 and the second countersunk hole 7-1, a nut 9 threadedly connected to the bolt 8 is provided in the first countersunk hole 6-1; a positioning block 7-2 is provided near the top of the outer wall of each pin 7, a plurality of positioning grooves 5-2 are provided on the upper connecting plate 5, and the positioning block 7-2 is provided in the positioning groove 5-2.

[0023] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0024] According to the instruction manual Figure 3-4It can be seen that as an embodiment of the utility model, multiple pins 7 on the driving walking wheel 3 are arranged between the upper connecting plate 5 and the lower connecting plate 6, and the transmission shaft 4 is arranged at the center position of the upper connecting plate 5 and the lower connecting plate 6. The diameter of the pin 7 can be adapted to the tooth gap of the driving walking wheel 2. When in use, the power end drives the connected driving walking wheel 2 to rotate, and the driving walking wheel 2 and the multiple pins 7 on the driving walking wheel 3 are meshed with each other, so that the driving walking wheel 2 drives the multiple pins 7 to rotate, and the pins 7 drive the upper connecting plate 5 and the lower connecting plate 6 and drive the transmission shaft 4 to rotate. The transmission shaft 4 drives the output shaft to rotate through the spline, and the output shaft drives the roller installed thereon to rotate to complete the coal mining work; the utility model replaces the cycloid gear by arranging a pin structure on the upper connecting plate 5 and the lower connecting plate 6, so that the overall structure is simpler, the processing is simpler, and the production and use costs are reduced.

[0025] Specifically, the number of the pins 7 is 5 to achieve the best use effect.

[0026] As another embodiment of the present utility model, Figure 5-6 Described, each pin 7 is detachably arranged on the upper connecting plate 5 and the lower connecting plate 6, and the specific connection method is: during installation, each pin 7 is inserted into the through groove 5-1 of the upper connecting plate 5 and the bottom is arranged on the groove 6-2 opened in the lower connecting plate 6, the nut 9 is arranged in the first countersunk hole 6-1 opened in the lower connecting plate 6, the screw part of the bolt 8 is inserted into the hollow part of the pin 7, and the bottom of the screw passes through the lower connecting plate 6, the nut of the bolt 8 is screwed so that the screw and the nut 9 are threadedly connected, and the nut of the bolt 8 is located in the second countersunk hole 7-1 opened at the top of the pin 7 after fixing, the through groove 5-1 opened on the upper connecting plate 5 and the groove 6-2 opened on the lower connecting plate 6 can horizontally limit the pin 7, and the bolt 8 passing through the hollow part of the pin 7 and the lower connecting plate 6 can vertically limit the pin 7, thereby preventing the pin 7 from deflecting.

[0027] Specifically, a positioning block 7-2 is provided on the outer wall of each pin 7 near the top, and a plurality of positioning grooves 5-2 are provided on the upper connecting plate 5. The positioning block 7-2 is arranged in the positioning groove 5-2. The positioning groove 5-2 limits the positioning block 7-2. The positioning block 7-2 is connected to the pin 7 to prevent the pin 7 from rotating during the engagement process with the transmission walking wheel 2.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission structure of a traveling box of a thin coal seam coal mining machine, comprising a traveling box body (1) of the coal mining machine, wherein a transmission traveling wheel (2) and a driving traveling wheel (3) which are meshed and connected with each other are rotatably arranged in the traveling box body (1), characterized in that: The driving walking wheel (3) comprises a transmission shaft (4), an upper connecting plate (5) and a lower connecting plate (6) are arranged on the transmission shaft (4), and a plurality of pins (7) are arranged between the upper connecting plate (5) and the lower connecting plate (6).

2. The transmission structure of the traveling box of a thin coal seam coal mining machine according to claim 1 is characterized in that: The number of the pins (7) is 5.

3. The transmission structure of the traveling box of a thin coal seam shearer according to claim 1 is characterized in that: Each of the pins (7) is detachably arranged on the upper connecting plate (5) and the lower connecting plate (6).

4. The transmission structure of the traveling box of a thin coal seam coal mining machine according to claim 3 is characterized in that: The upper connecting plate (5) is provided with a plurality of through grooves (5-1), the lower connecting plate (6) is provided with a plurality of grooves (6-2), each of the pins (7) is inserted into the through grooves (5-1) and the grooves (6-2), a first countersunk hole (6-1) is provided on the lower connecting plate (6) and below each groove (6-2), the pin (7) is a hollow structure and a second countersunk hole (7-1) is provided above, a bolt (8) is provided in the hollow part of the pin (7) and the second countersunk hole (7-1), and a nut (9) threadedly connected to the bolt (8) is provided in the first countersunk hole (6-1).

5. The transmission structure of the traveling box of a thin coal seam shearer according to claim 4 is characterized in that: A positioning block (7-2) is arranged on the outer wall of each of the pins (7) near the top, a plurality of positioning grooves (5-2) are provided on the upper connecting plate (5), and the positioning block (7-2) is arranged in the positioning groove (5-2).

Images