Antiskid device of coal mining machine
By arranging friction bumps at the bottom of the friction plate of the shearer's anti-skid device and using a gear rack and pinion to drive the limit block to move, the existing technology solves the problem of the shearer's anti-skid device holding tight friction under large inclination angles. Solve the problem of deficiencies and achieve a more efficient anti-slip effect and safety.
Patent Information
- Application Number
- CN202421335477.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The existing anti-slip device of coal mining machine is insufficient to hold the friction when mining coal at a high inclination angle, which can easily cause the equipment to slide or tilt, posing safety hazards.
An anti-skid device for a coal shearer is designed. By setting friction bumps at the bottom of the friction plate, multiple sets of friction bumps are used to increase the friction between the friction plate and the ground, and through the cooperation of gears and racks, the limit blocks are driven to move. To achieve anti-slip limit.
It effectively improves the anti-slip effect of the shearer body, enhances stability and safety under large inclination angles, and avoids the risk of equipment sliding or toppling.
Smart Images
Figure CN222376479U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mining machines, in particular to an anti-skid device for coal mining machines. Background Art
[0002] Coal mining machine is one of the important equipment for realizing mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency and low consumption. Coal seams with larger inclination angles will be encountered during coal mining, and special arrangements and preparations for the equipment are required to prevent accidents. According to the "Coal Mine Safety Regulations": When the inclination of the coal seam is greater than 15°, the coal mining machine must have a reliable anti-skid device. However, in the prior art, brake-type anti-skid devices, disc brake anti-skid devices, and anti-skid winches often have insufficient holding friction when mining at large inclination angles. When the friction is insufficient, it will easily cause the entire equipment to slide or tip over, thereby causing safety hazards to coal mining equipment and personnel. Therefore, it is necessary to improve the existing devices to meet actual needs. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides an anti-skid device for a coal mining machine, which has the advantages of good anti-skid effect and solves the above-mentioned technical problems.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mining machine anti-skid device, comprising a coal mining machine body and a slide rail, a slide box is symmetrically installed at the bottom end of the coal mining machine body, a motor one is fixedly installed at the side end of the slide box, a bidirectional screw is fixedly installed on the output shaft of the motor one, a slider is symmetrically threaded on the outer wall of the bidirectional screw, an adjusting arm is hingedly installed on the bottom end of the slider, a hinge seat is fixedly installed on the bottom end of the adjusting arm, a friction plate is fixedly installed on the bottom end of the hinge seat, a bracket is symmetrically installed on the bottom end of the coal mining machine body, a motor two is fixedly installed on the bottom end of the bracket, a rotating shaft is fixedly installed on the output shaft of the motor two, a gear is fixedly installed on the outer wall of the rotating shaft, a rack is movably installed on the bottom end of the coal mining machine body, and a limiting block is fixedly installed on the side end of the rack.
[0007] Preferably, friction bumps are installed in an array at the bottom end of the friction plate.
[0008] Through the above technical solution, by setting the friction protrusions, when the friction plate moves toward the ground, the friction protrusions contact the ground, so that multiple groups of friction protrusions are used to increase the friction between the friction plate and the ground, thereby increasing the anti-slip effect of the device body.
[0009] Preferably, the gear and rack are meshed.
[0010] Through the above technical solution, the gear and the rack are meshed, so when the gear rotates, the two sets of racks move relative to each other, and the movement of the rack drives the limit block to move.
[0011] Preferably, a limiting bolt is fixedly installed at the bottom end of the coal mining machine body, and the inner wall of the rack is sleeved on the outer wall of the limiting bolt.
[0012] Through the above technical solution, by setting the limiting bolt, the movement of the rack can be limited, thereby improving the stability of the rack movement.
[0013] Preferably, the side end array of the limit block is equipped with protrusions.
[0014] Through the above technical solution, the protrusion is made of rubber material, so when the protrusion contacts the side end of the slide rail, the friction force is increased while avoiding wear on the inner wall of the slide rail.
[0015] Compared with the prior art, the utility model provides a coal mining machine anti-skid device, which has the following beneficial effects:
[0016] 1. The utility model starts motor 1, which drives the bidirectional screw to rotate. The rotation of the bidirectional screw drives the two sets of sliders to move relative to each other. The movement of the slider drives the top ends of the two sets of adjusting arms to gradually approach each other. At this time, the bottom ends of the adjusting arms move downward. The downward movement of the adjusting arms drives the friction plates to move downward. At this time, the friction protrusions at the bottom ends of the friction plates contact the ground, thereby increasing the friction between the coal mining machine body and the ground, thereby improving the anti-skid effect of the coal mining machine body.
[0017] 2. The utility model starts motor 2, which drives the shaft to rotate. The shaft rotation drives the gear to rotate. The gear rotation drives the two sets of racks to move relative to each other. The relative movement of the two sets of racks drives the limit block at the side end of the rack to move toward the side end of the slide rail until the protrusion at the side end of the limit block contacts the side end of the slide rail, thereby utilizing the protrusion to achieve anti-skid limiting of the coal mining machine body, further improving the anti-skid effect of the coal mining machine body. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the anti-skid device for coal mining machine of the utility model structure;
[0019] Figure 2 It is a side view cutaway schematic diagram of the anti-skid device for coal mining machine of the utility model structure;
[0020] Figure 3 This is a schematic cross-sectional view of the anti-skid device for coal mining machines according to the utility model;
[0021] Figure 4 The utility model structure Figure 2A is a partial enlarged schematic diagram;
[0022] Figure 5 The utility model structure Figure 3 A partial enlarged schematic diagram of B in the figure.
[0023] Among them: 1. Coal mining machine body; 2. Slide rail; 3. Slide box; 4. Motor 1; 5. Bidirectional screw; 6. Slider; 7. Adjustment arm; 8. Articulated seat; 9. Friction plate; 10. Bracket; 11. Motor 2; 12. Rotating shaft; 13. Gear; 14. Rack; 15. Limit block; 16. Friction bump; 17. Limit bolt; 18. Bump. DETAILED DESCRIPTION
[0024] 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.
[0025] See also Figure 1-5 A coal mining machine anti-skid device comprises a coal mining machine body 1 and a slide rail 2, a slide box 3 is symmetrically installed at the bottom end of the coal mining machine body 1, a motor 4 is fixedly installed at the side end of the slide box 3, a bidirectional screw rod 5 is fixedly installed on the output shaft of the motor 4, a slider 6 is symmetrically threadedly sleeved on the outer wall of the bidirectional screw rod 5, an adjusting arm 7 is hingedly installed at the bottom end of the slider 6, an articulated seat 8 is fixedly installed at the bottom end of the adjusting arm 7, a friction plate 9 is fixedly installed at the bottom end of the articulated seat 8, a bracket 10 is symmetrically installed at the bottom end of the coal mining machine body 1, a motor 2 11 is fixedly installed at the bottom end of the bracket 10, a rotating shaft 12 is fixedly installed on the output shaft of the motor 2 11, a gear 13 is fixedly installed on the outer wall of the rotating shaft 12, a rack 14 is movably installed at the bottom end of the coal mining machine body 1, and a limiting block 15 is fixedly installed on the side end of the rack 14.
[0026] Specifically, a friction lug 16 is installed in an array at the bottom of the friction plate 9. The advantage is that by setting the friction lug 16, when the friction plate 9 moves toward the ground, the friction lug 16 contacts the ground, thereby utilizing multiple groups of friction lugs 16 to increase the friction between the friction plate 9 and the ground, thereby increasing the anti-slip effect of the device body.
[0027] Specifically, the gear 13 and the rack 14 are meshed with each other. The advantage is that the gear 13 and the rack 14 are meshed with each other, so when the gear 13 rotates, the two sets of racks 14 move relative to each other, and the movement of the rack 14 drives the limit block 15 to move.
[0028] Specifically, a limiting bolt 17 is fixedly installed at the bottom end of the coal mining machine body 1, and the inner wall of the rack 14 is sleeved on the outer wall of the limiting bolt 17. The advantage is that by setting the limiting bolt 17, the movement of the rack 14 can be limited, thereby improving the stability of the movement of the rack 14.
[0029] Specifically, the side end array of the limit block 15 is installed with a protrusion 18, and the advantage is that the protrusion 18 is made of rubber material, so when the protrusion 18 contacts the side end of the slide rail 2, it increases the friction force while avoiding wear on the inner wall of the slide rail 2.
[0030] When in use, by starting motor 14, motor 14 drives the bidirectional screw rod 5 to rotate, and the rotation of the bidirectional screw rod 5 drives the two groups of sliders 6 to move relative to each other, and the movement of the slider 6 drives the top ends of the two groups of adjusting arms 7 to gradually approach each other, at this time, the bottom end of the adjusting arm 7 moves downward, and the downward movement of the adjusting arm 7 drives the friction plate 9 to move downward, at this time, the friction protrusion 16 at the bottom end of the friction plate 9 contacts the ground, thereby increasing the friction between the coal mining machine body 1 and the ground, thereby improving the anti-skid effect of the coal mining machine body 1, by starting motor 2 11, motor 2 11 drives the rotating shaft 12 to rotate, the rotation of the rotating shaft 12 drives the gear 13 to rotate, the rotation of the gear 13 drives the two groups of racks 14 to move relative to each other, and the two groups of racks 14 move relative to each other to drive the limit block 15 at the side end of the rack 14 to move toward the side end of the slide rail 2 until the protrusion 18 at the side end of the limit block 15 contacts the side end of the slide rail 2, thereby utilizing the protrusion 18 to achieve anti-skid limiting of the coal mining machine body 1, further improving the anti-skid effect of the coal mining machine body 1.
[0031] 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 coal mining machine anti-skid device, comprising a coal mining machine body (1) and a slide rail (2), characterized in that: A slide box (3) is symmetrically mounted on the bottom end of the coal mining machine body (1), a motor 1 (4) is fixedly mounted on the side end of the slide box (3), a bidirectional screw rod (5) is fixedly mounted on the output shaft of the motor 1 (4), a slider (6) is symmetrically threadedly sleeved on the outer wall of the bidirectional screw rod (5), an adjusting arm (7) is hingedly mounted on the bottom end of the slider (6), a hinge seat (8) is fixedly mounted on the bottom end of the adjusting arm (7), a friction plate (9) is fixedly mounted on the bottom end of the hinge seat (8), a bracket (10) is symmetrically mounted on the bottom end of the coal mining machine body (1), a motor 2 (11) is fixedly mounted on the bottom end of the bracket (10), a rotating shaft (12) is fixedly mounted on the output shaft of the motor 2 (11), a gear (13) is fixedly mounted on the outer wall of the rotating shaft (12), a rack (14) is movably mounted on the bottom end of the coal mining machine body (1), and a limit block (15) is fixedly mounted on the side end of the rack (14).
2. The anti-skid device for coal mining machine according to claim 1, characterized in that: The bottom end of the friction plate (9) is provided with friction protrusions (16) in an array.
3. The anti-skid device for coal mining machine according to claim 1, characterized in that: The gear (13) and the rack (14) are meshed with each other.
4. The anti-skid device for coal mining machine according to claim 1, characterized in that: A limiting bolt (17) is fixedly mounted on the bottom end of the coal mining machine body (1), and the inner wall of the rack (14) is sleeved on the outer wall of the limiting bolt (17).
5. The anti-skid device for coal mining machine according to claim 1, characterized in that: The side ends of the limiting blocks (15) are arrayed with projections (18).