Guiding and supporting device of coal mining machine

Abstract

The utility model discloses a guide supporting device of a coal mining machine, which relates to the technical field of coal mining machines and comprises a sliding shoe component and a damping component. The sliding shoe assembly comprises a supporting frame and a sliding shoe body which is installed on the supporting frame and moves along a sliding way of the scraper conveyor. The damping assembly comprises two fixing seats which are oppositely arranged up and down, damping boxes mounted on the fixing seats and a connecting plate for connecting the two damping boxes; the damping box comprises a box body, a cavity with openings in the two ends is formed in the middle of the box body, and the interior of the cavity is divided into two damping cavities arranged side by side through a partition plate. A central shaft is arranged in the center of the damping cavity, and an elastic material is arranged between the central shaft and the damping cavity; wherein one central shaft is fixed on the corresponding fixed seat, and the other central shaft is fixed on the connecting plate. Through structural optimization of the sliding shoe assembly and the damping assembly, the moving stability and the damping effect of the coal mining machine on the sliding way of the scraper conveyor are improved, the service life of the coal mining machine is prolonged, and the coal mining efficiency and quality are improved.

Description

A guide support device for a coal mining machine Technical Field

[0001] This utility model relates to the field of coal mining machine technology, and in particular to a guiding support device for a coal mining machine. Background Technology

[0002] During coal mining, the coal mining machine needs to move on the slide of the scraper conveyor. Due to the complex geological conditions of the coal seam, the operation of the coal mining machine will generate significant vibration and impact. Traditional guide support devices usually use rigid connections or simple rubber pads for shock absorption, but the shock absorption effect is limited, which can easily lead to accelerated wear of the slippers and even affect the stable operation of the coal mining machine. Summary of the Invention

[0003] The purpose of this invention is to provide a guiding support device for a coal mining machine. By optimizing the structure of the slipper assembly and the shock absorption assembly, the device improves the stability and shock absorption effect of the coal mining machine on the scraper conveyor slide, extends the service life of the coal mining machine, and improves the efficiency and quality of coal mining.

[0004] To achieve the above objectives, this utility model provides a guiding support device for a coal mining machine, including a slipper assembly and a shock-absorbing assembly. The slipper assembly includes a support frame and a slipper body mounted on the support frame and moving along the scraper conveyor track. The shock-absorbing assembly includes two fixed seats arranged vertically opposite each other, a shock-absorbing box mounted on the fixed seats, and a connecting plate connecting the two shock-absorbing boxes. The upper fixed seat is mounted on the coal mining machine, and the lower fixed seat is mounted on the slipper assembly. The shock-absorbing box includes a box body, and a cavity with openings at both ends is provided in the middle of the box body. The cavity is divided into two shock-absorbing chambers arranged side by side by a partition. A central shaft is provided at the center of the shock-absorbing chamber, and an elastic material is provided between the central shaft and the shock-absorbing chamber. One of the central shafts is fixed on the corresponding fixed seat, and the other central shaft is fixed on the connecting plate.

[0005] With the above structure, the slipper assembly enables the coal mining machine to move on the scraper conveyor track, while the shock absorption assembly buffers vibrations and stabilizes the machine. When the coal mining machine is subjected to vertical or lateral impact, the external force is transmitted to the central shaft through the fixed seat. The central shaft compresses the elastic material, generating shear deformation, and dissipates vibration energy through internal friction. When the pressure is removed, the elastic material rebounds, and the device returns to its initial position; thus, multi-directional vibrations can be mitigated. Through structural optimization of the slipper assembly and shock absorption assembly, the stability and vibration damping effect of the coal mining machine on the scraper conveyor track are improved, extending the service life of the coal mining machine and enhancing coal mining efficiency and quality.

[0006] Preferably, the slipper body is rotatably mounted on the support frame via a hinge shaft. A limiting groove is provided on the slipper body in the circumferential direction of the hinge shaft, and the bottom of the support frame is rotatably mounted in the limiting groove. When the slipper body rotates a certain angle, the bottom of the support frame is locked against the groove wall of the limiting groove and cannot continue to rotate. By limiting the excessive rotation of the slipper body through the limiting groove, the stable movement of the coal mining machine on the scraper conveyor slide is ensured, improving coal mining accuracy and efficiency.

[0007] Preferably, the swing range of the slipper is -15° to 15°. This swing range can meet the movement requirements of the coal mining machine under complex working conditions, while ensuring the stability of the slipper assembly 1.

[0008] Preferably, the central shaft has a cross-shaped cross section, dividing the damping cavity into four rectangular sections. Each section is filled with elastic material, and the elastic material is in contact with the damping cavity or the central shaft on all sides. This structural design allows the elastic material to be evenly distributed within the damping cavity, improving the damping effect.

[0009] Preferably, the elastic material is a rectangular shape that conforms to the shape of the damping cavity, with the lengths of its two ends not less than the length of the damping cavity. This structural design ensures that the elastic material can fully fill the damping cavity, providing stable damping performance.

[0010] Preferably, circular columns are respectively provided at both ends of the central shaft, with the columns extending out of the damping cavity. End caps are fixedly installed at the openings at both ends of the damping cavity, and the end caps are provided with through holes for the circular columns to extend out. The circular columns can rotate at a certain angle within the through holes. The end caps press the two ends of the elastic material into the damping cavity. Through this structural design, the damping box can have a certain degree of adaptive adjustment capability when subjected to forces in different directions, further improving the flexibility and damping effect of the damping assembly. The end caps press the two ends of the elastic material into the damping cavity, and the pre-compression force ensures that the elastic material is always in close contact with the damping cavity, avoiding cavity noise or material displacement during vibration.

[0011] Preferably, the connecting plate and the central shaft, and the fixed seat and the central shaft are fixedly connected by screws, with at least two screws at each connection point. This structural design ensures the strength and reliability of the connection.

[0012] Preferably, the elastic material is made of rubber. This structural design ensures that the elastic material can fully fill the damping cavity, providing stable damping performance.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] This utility model provides a guiding support device for a coal mining machine, which solves the technical problem that existing guiding support devices for coal mining machines cannot ensure stable operation due to vibration. This utility model improves the movement stability and vibration reduction effect of the coal mining machine on the scraper conveyor slide by optimizing the structure of the slipper assembly and the shock absorption assembly, thereby extending the service life of the coal mining machine and improving the efficiency and quality of coal mining. Attached Figure Description

[0015] Figure 1 is a structural schematic diagram of a guide support device for a coal mining machine according to the present invention;

[0016] Figure 2 is a side sectional view of Figure 1;

[0017] Figure 3 is a schematic diagram of the sliding shoe assembly;

[0018] Figure 4 is a schematic diagram of the shock absorption box;

[0019] Figure 5 is a schematic diagram of the structure of the shock absorber box with the end cover removed in Figure 4;

[0020] Figure 6 is a schematic diagram of the central shaft and the elastic material.

[0021] In the figure, 1 is the slipper assembly, 11 is the support frame, 12 is the slipper body, 121 is the limiting groove, 13 is the hinge shaft, 2 is the shock absorption assembly, 21 is the fixed seat, 211 is the upper fixed seat, 212 is the lower fixed seat, 22 is the shock absorption box, 221 is the box body, 222 is the partition, 223 is the central shaft, 2231 is the circular column, 224 is the elastic material, 225 is the end cap, 2251 is the through hole, and 23 is the connecting plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] The orientations mentioned in this specification are based on the orientation of the guiding support device of the coal mining machine of this utility model when it is working normally. They do not limit the orientation during storage and transportation, and only represent relative positional relationships, not absolute positional relationships.

[0024] As shown in Figures 1 and 2, a guiding support device for a coal mining machine includes a slipper assembly 1 and a shock-absorbing assembly 2. The slipper assembly 1 is used to enable the coal mining machine to move on the scraper conveyor slide, while the shock-absorbing assembly 2 serves to buffer vibrations and stabilize the coal mining machine.

[0025] As shown in Figures 1 and 3, the slipper assembly 1 includes a support frame 11 and a slipper body 12. The support frame 11 provides a mounting base for the slipper body 12, which is mounted on the support frame 11 and can move along the scraper conveyor track.

[0026] Furthermore, the slipper body 12 is rotatably mounted on the support frame 11 via a hinge shaft 13. A limiting groove 121 is provided on the slipper body 12 in the circumferential direction of the hinge shaft 13, and the bottom of the support frame 11 is rotatably mounted in the limiting groove 121. When the coal mining machine encounters an uneven track or is subjected to external forces during operation, the slipper body 12 can rotate flexibly within a certain range around the hinge shaft 13 to adapt to changes in the track. After the slipper body 12 rotates a certain angle, the bottom of the support frame 11 is engaged with the groove wall of the limiting groove 121. The limiting groove 121 restricts excessive rotation of the slipper body 12, ensuring stable movement of the coal mining machine on the scraper conveyor track and improving coal mining accuracy and efficiency.

[0027] Preferably, the swing range of the slipper body 12 is -15° to 15°. Such a swing range can not only meet the movement requirements of the coal mining machine under complex working conditions, but also ensure the stability of the slipper assembly 1.

[0028] As shown in Figures 2 and 4-6, the shock absorption assembly 2 includes two fixed seats 21 arranged vertically opposite each other, a shock absorption box 22 mounted on the fixed seats 21, and a connecting plate 23 connecting the two shock absorption boxes 22.

[0029] The mounting bases 21 are arranged vertically opposite each other, namely an upper mounting base 211 and a lower mounting base 212. The upper mounting base 211 is installed on the coal mining machine, and the lower mounting base 212 is installed on the slipper assembly 1. Both the upper mounting base 211 and the lower mounting base 212 are provided with mounting holes for fixed installation. This connection method integrates the shock-absorbing assembly 2 between the coal mining machine and the slipper assembly 1, achieving the shock absorption function.

[0030] The shock absorber box 22 includes a box body 221. The box body 221 has a cavity with openings at both ends in its middle. The cavity is divided into two parallel shock absorber chambers by a partition 222. A central shaft 223 is located at the center of each shock absorber chamber, and an elastic material 224 is placed between the central shaft 223 and the shock absorber chamber. One central shaft 223 is fixed to a corresponding mounting base 21, and the other central shaft 223 is fixed to a connecting plate 23. When the coal mining machine is subjected to vibration, the elastic material 224 undergoes elastic deformation, absorbing and buffering the vibration energy, thereby reducing the impact of vibration on the coal mining machine.

[0031] Furthermore, the central shaft 223 has a cross-shaped cross section, dividing the damping cavity into four rectangular sections. Each section is filled with elastic material 224, and the elastic material 224 is in contact with the damping cavity or the central shaft 223 on all sides. This design allows the elastic material 224 to be evenly distributed within the damping cavity, improving the damping effect.

[0032] Preferably, the elastic material 224 is a rectangular shape that conforms to the shape of the interval, and the length of its two ends is not less than the length of the damping cavity, so as to ensure that the elastic material 224 can fully fill the damping cavity and provide stable damping performance.

[0033] Preferably, circular columns 2231 are respectively provided at both ends of the central shaft 223, and the circular columns 2231 extend out of the damping cavity. Threaded holes are provided on the circular columns 2231 for fixing to the fixed base 21 or connecting plate 23. End caps 225 are fixedly installed at the openings at both ends of the damping cavity, and the end caps 225 are fixedly installed on the openings at both ends of the damping cavity by screws, thus closing the openings at both ends of the damping cavity. Through holes 2251 are provided on the end caps 225 for the circular columns 2231 to extend out, and the circular columns 2231 can rotate within the through holes 2251; this design allows the damping box 22 to have a certain degree of adaptive adjustment capability when subjected to forces in different directions, further improving the flexibility and damping effect of the damping assembly 2. The end caps 225 press the two ends of the elastic material 224 into the damping cavity, and the pre-compression force ensures that the elastic material 224 is always tightly fitted with the damping cavity, avoiding cavity noise or material displacement during vibration.

[0034] Preferably, the connecting plate 23 and the central shaft 223, and the fixed seat 21 and the central shaft 223 are fixedly connected by screws, with at least two screws provided at each connection position to ensure the firmness and reliability of the connection.

[0035] Elastic material 224 is made of rubber. Rubber has good elasticity and damping properties, which can effectively absorb and buffer vibration energy, while being low in cost and easy to process and replace.

[0036] As shown in Figures 1-6, the working principle of a guide support device for a coal mining machine is as follows:

[0037] When the coal mining machine is subjected to vertical or lateral impact, the external force is transmitted to the central shaft 223 through the fixed seat 21. The cross-shaped central shaft 223 compresses the elastic material 224, generating shear deformation, and dissipates the vibration energy through internal friction of the material.

[0038] When the pressure is removed, the elastic material 224 rebounds and the device returns to its initial position; because the gap between the central shaft 223 of the main force-bearing component and the box 221 is filled with elastic material 224 made of rubber, it can absorb vibrations from multiple directions.

[0039] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A guiding support device for a coal mining machine, characterized in that: The system includes a sliding shoe assembly and a shock-absorbing assembly. The sliding shoe assembly includes a support frame and a sliding shoe body mounted on the support frame and moving along the scraper conveyor track. The shock-absorbing assembly includes two fixed seats arranged vertically opposite each other, a shock-absorbing box mounted on the fixed seats, and a connecting plate connecting the two shock-absorbing boxes. The upper fixed seat is mounted on the coal mining machine, and the lower fixed seat is mounted on the sliding shoe assembly. The shock-absorbing box includes a box body with a cavity with openings at both ends in the middle. The cavity is divided into two side-by-side shock-absorbing chambers by a partition. A central shaft is provided at the center of each shock-absorbing chamber, and an elastic material is provided between the central shaft and the shock-absorbing chamber. One of the central shafts is fixed to the corresponding fixed seat, and the other central shaft is fixed to the connecting plate.

2. The guiding support device for a coal mining machine according to claim 1, characterized in that: The slipper body is rotatably mounted on the support frame via a hinge shaft. A limiting groove is provided on the slipper body in the circumferential direction of the hinge shaft. The bottom of the support frame is rotatably mounted in the limiting groove. When the slipper body rotates a certain angle, the bottom of the support frame is stuck on the groove wall of the limiting groove and cannot continue to rotate.

3. The guiding support device for a coal mining machine according to claim 2, characterized in that: The swing range of the slipper is -15° to 15°.

4. The guiding support device for a coal mining machine according to claim 1, characterized in that: The central shaft has a cross-shaped cross section, which divides the damping cavity into four rectangular sections. Each section is filled with the elastic material, and the elastic material is in contact with the damping cavity or the central shaft on all sides.

5. The guiding support device for a coal mining machine according to claim 4, characterized in that: The elastic material is a rectangular shape that conforms to the shape of the interval, and the length of its two ends is not less than the length of the damping cavity.

6. The guiding support device for a coal mining machine according to claim 5, characterized in that: A circular column is provided at each end of the central shaft, the circular column extends out of the damping cavity, and end caps are fixedly installed at the opening positions of the two ends of the damping cavity. The end caps are provided with through holes for the circular column to extend out. The circular column can rotate at a certain angle within the through holes. The end caps press the two ends of the elastic material into the damping cavity.

7. The guiding support device for a coal mining machine according to claim 1, characterized in that: The connecting plate and the central shaft, and the fixed base and the central shaft are fixedly connected by screws, with at least two screws provided at each connection position.

8. The guiding support device for a coal mining machine according to claim 1, characterized in that: The elastic material is rubber.

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