A side tipping mine car for coal mine transportation
By using hydraulic drive and automatic cleaning mechanism, the problem of material residue after unloading from the side-tipping mine car is solved, realizing automatic unloading and cleaning, and improving transportation efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG LONGMAY HEGANG MINING CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-14
AI Technical Summary
After unloading, existing side-tipping mine cars tend to leave coal and mineral materials, especially wet coal or sticky gangue, adhering to the inner walls of the car, resulting in a large amount of material residue that requires manual cleaning, reducing transportation efficiency and increasing labor intensity.
A side-tipping mine car for coal mining was designed. The car is driven to tip over by a hydraulic cylinder. Through mechanisms such as push plates, scrapers, and swing plates, the material is automatically unloaded and the stubborn material on the inner wall is scraped off. At the same time, the stability of the device is improved by using counterweights and chute structures.
It enables automatic material unloading and cleaning of stubborn materials on the inner wall without manual intervention, improving transportation efficiency, enhancing the stability of the device, and reducing the occurrence of rollover accidents.
Smart Images
Figure CN224491037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mine cars, and more specifically, to a side-tipping mine car for coal mine transportation. Background Technology
[0002] Coal mine transportation is a crucial link in underground production. Side-tipping mine cars, as a traditional transportation device, are widely used for short-distance transfer of materials such as coal and gangue. Their working principle involves using a hydraulic or mechanical tipping mechanism to tilt the car to the side, allowing the material to be unloaded by gravity.
[0003] However, existing side-tipping mine cars rely solely on gravity to unload materials. Since coal minerals (especially wet coal or sticky gangue) tend to adhere to the inner walls of the car, a large amount of material often remains after the side-tipping unloading, requiring manual cleaning. This not only reduces transportation efficiency but also increases labor intensity.
[0004] Therefore, we have made improvements to this and proposed a side-tipping mine car for coal mine transportation. Utility Model Content
[0005] The purpose of this utility model is to solve the problem that current side-tipping mine cars rely solely on gravity to unload materials. Since coal minerals (especially wet coal or sticky gangue) easily adhere to the inner wall of the car, a large amount of material is often left after the side-tipping unloading, requiring manual cleaning, which not only reduces transportation efficiency but also increases labor intensity.
[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a side-tipping mine car for coal mine transportation, comprising a base, a shell at the bottom of the base, a first support frame symmetrically arranged fixedly connected to the right side of the shell, a first rotating support rotatably connected between the two first support frames, a hydraulic cylinder fixedly connected to the top of the first rotating support, a second support frame symmetrically arranged fixedly connected to the left side of the base, a second rotating support rotatably connected between the two second support frames, a mine car fixedly connected to the top of the second rotating support, the mine car having a U-shaped cross-section, the bottom of the mine car contacting the top of the base, the output end of the hydraulic cylinder rotatably connected to the bottom of the mine car, first pillars symmetrically arranged fixedly connected to both the front and rear sides of the mine car, a side-tipping cover rotatably connected to the surface of the first pillars, the interior of the side-tipping cover contacting the surface of the mine car, a fixed plate symmetrically arranged fixedly connected to the top of the base, a connecting plate rotatably connected to the surface of each of the two fixed plates, the end of the connecting plate away from the fixed plate rotatably connected to the surface of the side-tipping cover, and a cleaning mechanism provided inside the mine car.
[0007] As a preferred technical solution of the present application, the cleaning mechanism includes a third push plate, the surface of the third push plate is slidably connected to the inside of the ore car, convex columns are fixedly connected to both sides inside the ore car, and the inside of the third push plate is slidably connected to the surface of the convex columns. Slide rails are fixedly connected to both sides of the top of the ore car.
[0008] As a preferred technical solution of the present application, a top plate is fixedly connected to the top of the third push plate, connecting rods are fixedly connected to both sides of the top plate, the surface of the connecting rods is slidably connected to the inside of the slide rail, and a scraper is fixedly connected to the surface of the third push plate.
[0009] As a preferred technical solution of the present application, first push plates are rotatably connected to the front and rear sides of the side flip cover, second columns are fixedly connected to the front and rear sides of the ore car, the surface of the second columns is rotatably connected to the inside of the first push plates, and a second push plate is rotatably connected to one end of the first push plate away from the side flip cover. Arc-shaped sliding frames are fixedly connected to the front and rear sides of the ore car.
[0010] As a preferred technical solution of the present application, a sliding column is fixedly connected to the inside of one end of the second push plate close to the arc-shaped sliding frame. The cross-section of the sliding column is in a middle shape. The surface of the sliding column slides with the inside of the arc-shaped sliding frame. A swing plate is rotatably connected to the surface of the sliding column. The surface of the swing plate is fixedly connected to one end of the connecting rod away from the top plate. Third columns are fixedly connected to the front and rear sides of the ore car.
[0011] As a preferred technical solution of the present application, a first chute is provided on the surface of the swing plate, the inside of the first chute contacts the surface of the third column, arc-shaped grooves are provided on the front and rear sides of the side flip cover, the inside of the arc-shaped grooves slides with the surface of the second column, and through grooves are provided on the front and rear sides of the side flip cover. The inside of the through groove slides with the surface of the connecting rod.
[0012] As a preferred technical solution of the present application, symmetrically arranged notch openings are provided on the right side of the base, symmetrically arranged second chutes are provided on the top of the base, the inside of the second chute and the notch opening on the same side are interconnected, a counterweight is slidably connected to the inside of the notch opening, and a push rod is fixedly connected to the top of the counterweight. The surface of the push rod slides with the inside of the second chute, the left side of the push rod contacts the surface of the sliding column, and symmetrically arranged baffles are fixedly connected to the bottom of the base. The left side of the baffle contacts the right side of the counterweight.
[0013] As a preferred technical solution of this application, the base has equidistant circular grooves inside, the inside of the circular grooves is connected to the inside of the slot opening, the inside of the circular grooves is provided with ball bearings, the inside of the circular grooves is in contact with the surface of the ball bearings, and the surface of the ball bearings is in contact with the bottom of the counterweight.
[0014] As a preferred technical solution of this application, a monitor is fixedly connected to the surface of the base, and a remote controller is fixedly connected to the surface of the base.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In the scheme of this application:
[0017] 1. With the first push plate, second push plate, swing plate, scraper, and third push plate set up, when the side-flipping cover rotates around the axis of the first support column, the rotation of the side-flipping cover drives the first push plate to rotate around the axis of the second support column, thereby pushing the second push plate diagonally downward, so that the second push plate drives the sliding column to slide from the leftmost end to the rightmost end of the arc-shaped sliding frame, thereby causing the bottom of the swing plate to swing from the left side to the right side. Under the restriction of the third support column, the swing of the bottom of the swing plate drives the top of the swing plate to swing in the opposite direction, so that the top of the swing plate drives the connecting rod to slide from the right end to the left end inside the slide rail frame. The movement of the connecting rod drives the top plate to move, and the movement of the top plate drives the third push plate to move. When the mine car is tipped over, the third push plate pushes out the material remaining inside the mine car, and at the same time drives the scraper to scrape off the stubborn material adhering to the inner wall of the mine car. No manual cleaning is required, reducing labor intensity and increasing transportation efficiency.
[0018] 2. By using a sliding column, push rod, second chute, slot opening, and counterweight, when the mine car overturns and the sliding column swings from left to right, the sliding column pushes the push rod to slide inside the second chute. The push rod moves and causes the counterweight to slide out from inside the slot opening to the right, thus achieving the effect of automatically adjusting the counterweight on the left and right sides of the base. This prevents the left side of the base from being overloaded and overturning when the mine car overturns and is unloading, increasing the stability of the device and reducing overturning accidents. Attached Figure Description
[0019] Figure 1 A structural schematic diagram of a side-tipping mine car for coal transportation provided in this application;
[0020] Figure 2 A schematic diagram of the structure of the mine car in the side-tipping mine car used for coal transportation provided in this application;
[0021] Figure 3 A schematic diagram of the side-tipping cover in a coal mine transport side-tipping car provided in this application;
[0022] Figure 4A schematic diagram of the structure of the second pusher plate in the side-tipping mine car for coal transportation provided in this application;
[0023] Figure 5 This is a schematic diagram of the trough opening of the side-tipping mine car used for coal transportation provided in this application.
[0024] The image shows:
[0025] 1. Base; 2. Housing; 3. Mine car; 4. Monitor; 5. Remote controller; 6. First support frame; 7. First rotating support; 8. Hydraulic cylinder; 9. Side flip cover; 10. Fixing plate; 11. Connecting plate; 12. First support column; 13. First push plate; 14. Second support column; 15. Arc groove; 16. Second push plate; 17. Sliding column; 18. Swing plate; 19. First slide groove; 20. Third support column; 21. Arc sliding frame; 22. Slide rail frame; 23. Connecting rod; 24. Top plate; 25. Third push plate; 26. Through groove; 27. Second support frame; 28. Second rotating support; 29. Groove opening; 30. Counterweight; 31. Baffle; 32. Push rod; 33. Second slide groove; 34. Scraper; 35. Protruding column; 36. Circular groove; 37. Ball bearing. Detailed Implementation
[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0027] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0030] Example 1
[0031] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5A side-tipping mine car for coal mine transportation includes a base 1, a housing 2 at the bottom of the base 1, a power device inside the housing 2 that drives the two side wheels to rotate, a first support frame 6 symmetrically arranged fixedly connected to the right side of the housing 2, a first rotating support 7 rotatably connected between the two first support frames 6, a hydraulic cylinder 8 fixedly connected to the top of the first rotating support 7, and a pump station used in conjunction with the hydraulic cylinder 8 also located in the housing 2, a second support frame 27 symmetrically arranged fixedly connected to the left side of the base 1, a second rotating support 28 rotatably connected between the two second support frames 27, a mine car 3 fixedly connected to the top of the second rotating support 28, the mine car 3 having a U-shaped cross-section, the bottom of the mine car 3 contacting the top of the base 1, the output end of the hydraulic cylinder 8 rotatably connected to the bottom of the mine car 3, thereby activating the hydraulic cylinder 8 to push the mine car 3 up, and then causing the mine car 3 to rotate around the axis of the second rotating support 28, thus completing the side-tipping function of the mine car 3.
[0032] Furthermore, such as Figure 1 , Figure 2 , Figure 3 As shown, the front and rear sides of the mine car 3 are fixedly connected with symmetrically arranged first support columns 12. The surface of the first support column 12 is rotatably connected with a side flip cover 9. The inside of the side flip cover 9 is in contact with the surface of the mine car 3. The top of the base 1 is fixedly connected with symmetrically arranged fixed plates 10. The surfaces of the two fixed plates 10 are rotatably connected with connecting plates 11. The end of the connecting plate 11 away from the fixed plate 10 is rotatably connected to the surface of the side flip cover 9. The mine car 3 is equipped with a cleaning mechanism. When the mine car 3 is pushed up by the hydraulic cylinder 8, the side flip cover 9 will not be pushed up under the pull of the connecting plate 11, but will rotate around the axis of the first support column 12, thereby forming a gap between the left side of the side flip cover 9 and the mine car 3, so that the material inside the mine car 3 is unloaded from the gap due to gravity.
[0033] Furthermore, such as Figure 4 As shown, the cleaning mechanism includes a third push plate 25, the surface of which is slidably connected to the interior of the mine car 3. Both sides of the interior of the mine car 3 are fixedly connected to protruding posts 35. The interior of the third push plate 25 is slidably connected to the surface of the protruding posts 35. The protruding posts 35 make the third push plate 25 more stable during sliding, preventing tilting. Both sides of the top of the mine car 3 are fixedly connected to slide rail frames 22. The top of the third push plate 25 is fixedly connected to a top plate 24. Both sides of the top plate 24 are fixedly connected to connecting rods 23. The surface of the connecting rods 23 is slidably connected to the interior of the slide rail frames 22. Scrapers 34 are fixedly connected to both sides and the bottom of the third push plate 25. The third push plate 25 pushes out the residual material inside the mine car 3, and the scrapers 34 scrape away the stubborn material adhering to the inner wall of the mine car 3.
[0034] Furthermore, such as Figure 1 , Figure 2 , Figure 3 As shown, on both the front and rear sides of the side flip cover 9, there are first push plates 13 rotatably connected. On both the front and rear sides of the ore car 3, there are second support columns 14 fixedly connected. The surface of the second support column 14 is rotatably connected to the inside of the first push plate 13. One end of the first push plate 13 away from the side flip cover 9 is rotatably connected to a second push plate 16. On both the front and rear sides of the ore car 3, there are arc-shaped sliding frames 21 fixedly connected. Inside one end of the second push plate 16 close to the arc-shaped sliding frame 21, there is a sliding column 17 fixedly connected. The cross-section of the sliding column 17 is in the shape of a Chinese character 'zhong'. The surface of the sliding column 17 slides with the inner wall of the arc-shaped sliding frame 21. At the same time, the 'zhong'-shaped setting of the sliding column 17 prevents the sliding column 17 from separating from the arc-shaped sliding frame 21, ensuring the smooth operation of the device. The surface of the sliding column 17 is rotatably connected to a swing plate 18. The surface of the swing plate 18 is fixedly connected to one end of the connecting rod 23 away from the top plate 24. On both the front and rear sides of the ore car 3, there are third support columns 20 fixedly connected. There is a first sliding groove 19 on the surface of the swing plate 18. The inside of the first sliding groove 19 contacts the surface of the third support column 20. When the side flip cover 9 rotates around the axis of the first support column 12, the side flip cover 9 rotates to drive the first push plate 13 to rotate around the axis of the second support column 14, thereby pushing the second push plate 16 obliquely downward, causing the second push plate 16 to drive the sliding column 17 to slide from the leftmost end to the rightmost end of the arc-shaped sliding frame 21, and then causing the bottom of the swing plate 18 to swing from the left side to the right side. Under the restriction of the third support column 20, the swing at the bottom of the swing plate 18 drives the top of the swing plate 18 to swing in the opposite direction, so that the top of the swing plate 18 drives the connecting rod 23 to slide from the right end to the left end inside the slide rail frame 22. The movement of the connecting rod 23 drives the movement of the top plate 24, and the movement of the top plate 24 drives the movement of the third push plate 25, finally realizing the function of automatically pushing out the materials inside the ore car 3 by the third push plate 25 when the ore car 3 is overturned.
[0035] Further, as Figure 1 、 Figure 2 、 Figure 3 shown, on both the front and rear sides of the side flip cover 9, there are arc-shaped grooves 15. The inside of the arc-shaped grooves 15 slides with the surface of the second support column 14. On both the front and rear sides of the side flip cover 9, there are through grooves 26. The inside of the through grooves 26 slides with the surface of the connecting rod 23, preventing the side flip cover 9 from colliding with the surfaces of the second support column 14 and the connecting rod 23 during movement.
[0036] Embodiment 2
[0037] The side-tipping ore car for coal mine transportation provided in Embodiment 1 is further optimized. Specifically, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 5As shown, the right side of the base 1 has symmetrically arranged slots 29, and the top of the base 1 has symmetrically arranged second sliding grooves 33. The interiors of the second sliding grooves 33 and the slots 29 on the same side are interconnected. A counterweight 30 is slidably connected inside the slots 29. A push rod 32 is fixedly connected to the top of the counterweight 30. The surface of the push rod 32 is slidably connected to the interior of the second sliding groove 33. The surface of the sliding column 17 is in contact with the left side of the push rod 32. A baffle 31 is fixedly connected to the bottom of the base 1, and the left side of the baffle 31 is in contact with the right side of the counterweight 30. When the mine car 3 overturns and the sliding column 17 swings from left to right, the sliding column 17 pushes the push rod 32 to slide inside the second sliding groove 33. The movement of the push rod 32 causes the counterweight 30 to slide out from the interior of the slots 29 to the right, thereby achieving the effect of adjusting the counterweight on the left and right sides of the base 1 and preventing the left side of the base 1 from overturning due to excessive weight when the mine car 3 overturns.
[0038] Furthermore, such as Figure 5 As shown, the base 1 has equidistant circular grooves 36 inside, the inside of the circular grooves 36 is connected to the inside of the slot 29, and a ball 37 is provided inside the circular grooves 36. The inside of the circular grooves 36 is in contact with the surface of the ball 37, and the surface of the ball 37 is in contact with the bottom of the counterweight 30, so as to reduce the resistance of the push rod 32 pushing the counterweight 30.
[0039] Furthermore, such as Figure 1 As shown, a monitor 4 is fixedly connected to the surface of the base 1. The monitor 4 captures images through an infrared camera, transmits the data to the backend system through a switch, and pushes the image to the user's monitor for comprehensive monitoring of the situation inside the mine. The monitor 4 is an existing structure and will not be described in detail here. A remote controller 5 is fixedly connected to the surface of the base 1. The user sends control commands through computer software. The commands are transmitted to the remote controller 5 through communication and drive the actuator, enabling the device to remotely handle problems. The remote controller 5 is an existing structure and will not be described in detail here.
[0040] The operation of the side-tipping mine car for coal transportation provided by this utility model is as follows: The operator observes the situation inside the mine through the monitor 4. When the device reaches the designated unloading point, the hydraulic cylinder 8 is remotely activated through the remote controller 5 to push the mine car 3 up. Since the bottom left side of the mine car 3 is fixedly connected to the second rotating support 28, and the second rotating support 28 is rotatably installed on the second support frame 27, the mine car 3 rotates around the axis of the second rotating support 28. When the mine car 3 is pushed up by the hydraulic cylinder 8, the side-tipping cover 9 will not be pushed up under the pull of the connecting plate 11, but will rotate around the axis of the first support column 12, thereby forming a gap between the left side of the side-tipping cover 9 and the mine car 3, so that the material inside the mine car 3 is unloaded from the gap due to gravity.
[0041] Under the combined constraint of the connecting rod 23, the third support column 20, and the sliding column 17, the swing plate 18 rotates synchronously with the mine car 3 when the mine car 3 is pushed and rotated by the hydraulic cylinder 8. Simultaneously, when the side-flipping cover 9 rotates around the axis of the first support column 12, the rotation of the side-flipping cover 9 drives the first push plate 13 to rotate around the axis of the second support column 14, thereby pushing the second push plate 16 diagonally downwards. This causes the second push plate 16 to drive the sliding column 17 to slide from the leftmost end to the rightmost end of the arc-shaped sliding frame 21, thus causing the bottom of the swing plate 18 to swing from the left to the right. Under the constraint of column 20, the swing of the bottom of the swing plate 18 causes the top of the swing plate 18 to swing in the opposite direction, thereby causing the top of the swing plate 18 to drive the connecting rod 23 to slide from the right end to the left end inside the slide rail frame 22. The movement of the connecting rod 23 drives the top plate 24 to move, and the movement of the top plate 24 drives the third push plate 25 to move. Finally, when the mine car 3 overturns, the third push plate 25 pushes out the material remaining inside the mine car 3, and at the same time drives the scraper 34 to scrape off the stubborn material adhering to the inner wall of the mine car 3. No manual cleaning is required, reducing labor intensity and increasing transportation efficiency.
[0042] At the same time, when the mine car 3 overturns and the sliding column 17 swings from left to right, the sliding column 17 pushes the push rod 32 to slide inside the second slide groove 33. The push rod 32 moves and drives the counterweight block 30 to slide out from the inside of the groove 29 to the right, thereby achieving the effect of adjusting the counterweight on the left and right sides of the base 1. This prevents the left side of the base 1 from being overloaded and overturning when the mine car 3 overturns and unloads, increases the stability of the device, and reduces overturning accidents.
[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A side-tipping mine car for coal mine transportation, characterized in that, The system includes a base (1), a housing (2) at the bottom of the base (1), a first support frame (6) symmetrically arranged fixedly connected to the right side of the housing (2), a first rotating support (7) rotatably connected between the two first support frames (6), a hydraulic cylinder (8) fixedly connected to the top of the first rotating support (7), a second support frame (27) symmetrically arranged fixedly connected to the left side of the base (1), a second rotating support (28) rotatably connected between the two second support frames (27), a mine car (3) fixedly connected to the top of the second rotating support (28), the mine car (3) having a U-shaped cross-section, and the bottom of the mine car (3) being connected to the base (1). The top of the base (1) is in contact with the bottom of the mine car (3). The output end of the hydraulic cylinder (8) is rotatably connected to the bottom of the mine car (3). The front and rear sides of the mine car (3) are fixedly connected with symmetrically arranged first pillars (12). The surface of the first pillars (12) is rotatably connected with a side flap (9). The inside of the side flap (9) is in contact with the surface of the mine car (3). The top of the base (1) is fixedly connected with symmetrically arranged fixed plates (10). The surfaces of the two fixed plates (10) are rotatably connected with connecting plates (11). The end of the connecting plate (11) away from the fixed plate (10) is rotatably connected to the surface of the side flap (9). The mine car (3) is equipped with a cleaning mechanism inside.
2. The side-tipping mine car for coal mine transportation according to claim 1, characterized in that, The cleaning mechanism includes a third push plate (25), the surface of which is slidably connected to the interior of the mine car (3), and protruding columns (35) are fixedly connected to both sides of the interior of the mine car (3). The interior of the third push plate (25) is slidably connected to the surface of the protruding columns (35), and slide rail frames (22) are fixedly connected to both sides of the top of the mine car (3).
3. A side-tipping mine car for coal mine transportation according to claim 2, characterized in that, The top of the third push plate (25) is fixedly connected to a top plate (24), and connecting rods (23) are fixedly connected to both sides of the top plate (24). The surface of the connecting rods (23) is slidably connected to the inside of the slide rail frame (22), and a scraper (34) is fixedly connected to the surface of the third push plate (25).
4. A side-tipping mine car for coal mine transportation according to claim 3, characterized in that, The front and rear sides of the side flap (9) are rotatably connected to a first push plate (13), and the front and rear sides of the mine car (3) are fixedly connected to a second support column (14). The surface of the second support column (14) is rotatably connected to the interior of the first push plate (13). The end of the first push plate (13) away from the side flap (9) is rotatably connected to a second push plate (16). The front and rear sides of the mine car (3) are fixedly connected to an arc-shaped sliding frame (21).
5. A side-tipping mine car for coal mine transportation according to claim 4, characterized in that, One end of the second push plate (16) close to the arc-shaped sliding frame (21) is fixedly connected with a sliding column (17). The cross-section of the sliding column (17) is in a Chinese character 'zhong' shape. The surface of the sliding column (17) slides inside the arc-shaped sliding frame (21). A swing plate (18) is rotatably connected to the surface of the sliding column (17). One end of a connecting rod (23) away from the top plate (24) is fixedly connected to the surface of the swing plate (18). Third support columns (20) are fixedly connected to both the front and rear sides of the mine car (3).
6. A side-tipping mine car for coal mine transportation according to claim 5, characterized in that, A first chute (19) is formed on the surface of the swing plate (18). The surface of the third support column (20) contacts the inside of the first chute (19). Arc-shaped grooves (15) are formed on both the front and rear sides of the side flip cover (9). The surface of the second support column (14) slides inside the arc-shaped grooves (15). Through grooves (26) are formed on both the front and rear sides of the side flip cover (9). The surface of the connecting rod (23) slides inside the through grooves (26).
7. A side-tipping mine car for coal mine transportation according to claim 6, characterized in that, Symmetrically arranged notch openings (29) are formed on the right side of the base (1). Symmetrically arranged second chutes (33) are formed on the top of the base (1). The inside of the second chute (33) and the notch opening (29) on the same side are interconnected. A counterweight block (30) is slidably connected inside the notch opening (29). A push rod (32) is fixedly connected to the top of the counterweight block (30). The surface of the push rod (32) slides inside the second chute (33). The left side of the push rod (32) contacts the surface of the sliding column (17). Symmetrically arranged baffles (31) are fixedly connected to the bottom of the base (1). The left side of the baffle (31) contacts the right side of the counterweight block (30).
8. A side-tipping mine car for coal mine transportation according to claim 7, characterized in that, Equidistantly arranged circular grooves (36) are formed inside the base (1). The inside of the circular groove (36) is connected to the inside of the notch opening (29). A ball (37) is arranged inside the circular groove (36). The surface of the circular groove (36) contacts the surface of the ball (37). The surface of the ball (37) contacts the bottom of the counterweight block (30).
9. A side-tipping mine car for coal mine transportation according to claim 8, characterized in that, A monitor (4) is fixedly connected to the surface of the base (1). A remote controller (5) is fixedly connected to the surface of the base (1).