Coal mine annular parking lot toppled by gravity and use method of coal mine annular parking lot

Abstract

The coal mine annular parking lot comprises an annular track formed by sequentially connecting a material line A, a material line B and a material line C. A car pusher is slidably connected into the material line A. A mine car body is arranged on the top of the outer side of the material line A. A car pushing device is arranged on the material line B. The mine car main body and the car pusher are matched with each other to move above the material line A, the material line B and the material line C; the overturning assembly is located at the top of the material line B, and a gravity dumping mechanism, a screening mechanism and a smashing and recycling mechanism are arranged in the overturning assembly; and the turnout switching assembly is located at the top of the outer side of the material line C. Efficient circulating transportation and automatic unloading of the mine car are achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal mine ground transportation equipment, and particularly relates to a coal mine ring-shaped yard utilizing gravity dumping and a use method of the coal mine ring-shaped yard utilizing gravity dumping. BACKGROUND

[0002] In underground coal mine transportation, a monorail as an important transportation equipment has the advantages of flexible operation and strong adaptability. A ring-shaped yard utilizes the gravity potential formed by the slope difference of a roadway, and a mine car automatically slides along a descending track when fully loaded, and an empty car returns through an ascending track, thereby reducing power consumption. Such a design is commonly seen in a shaft bottom yard of an inclined shaft or a vertical shaft, and is particularly suitable for a mine area with a large inclination angle.

[0003] Continuous operation of a mine car is achieved through a ring-shaped line, the turning operation of a traditional dead-end yard is avoided, and the transportation efficiency is improved. For example, a ring-shaped shaft bottom yard allows a mine car to enter and exit on both sides of a shaft, and forms a closed loop. Therefore, it has become a popular research direction in recent years. SUMMARY A first object of the present application is to provide a coal mine ring-shaped yard utilizing gravity dumping, and to realize efficient and automatic unloading of a mine car.

[0004] In order to achieve the above object, the technical solution adopted by the present application is as follows: a coal mine ring-shaped yard utilizing gravity dumping comprises: a ring-shaped track composed of material lines A, B and C connected in sequence, a pusher machine is slidably connected inside the material line A, a mine car body is arranged on the top of the outside of the material line A, and the mine car body and the pusher machine are arranged to move above the material lines A, B and C in cooperation with each other; a turnover assembly is arranged on the top of the material line B, and the turnover assembly is internally provided with a gravity dumping mechanism, a screening mechanism and a crushing and recycling mechanism; a turnout switching assembly is arranged on the top of the outside of the material line C.

[0005] As a preferred technical solution of the present application, the turnover assembly comprises a high tipping car, a rotating shaft A and a hydraulic rod, the high tipping car is arranged on one side of the outside of the material line B, the rotating shaft A is rotatably connected inside the high tipping car, the rotating shaft A is rotatably connected to the middle of the inside of the high tipping car, the hydraulic rod is hingedly connected to the bottom of the outside of the high tipping car, and the extension end of the hydraulic rod is hingedly connected to the outside of the rotating shaft A.

[0006] As a preferred technical scheme of the present application, the gravity pouring mechanism comprises a limiting angle, a rotating shaft B, a fixed plate and a buckle; the rotating shaft A is rotatably connected with the rotating shaft B at one end away from the high tipping car, the fixed plate is hingedly connected to the outside of the rotating shaft B, the limiting angle is arranged on the side of the rotating shaft A close to the rotating shaft B, the limiting angle is used in cooperation with the fixed plate, and the buckle is fixedly connected to the outside of the fixed plate away from the rotating shaft B.

[0007] As a preferred technical scheme of the present application, the screening mechanism comprises a receiving box, a large-filter-hole sieve plate, a shock-resistant servo motor, a rotating shaft C, an adjustable baffle and a limiting block; the receiving box is fixedly connected to the top of the outside of the high tipping car, the large-filter-hole sieve plate is fixedly connected to the inside of the middle of the receiving box, the shock-resistant servo motor is fixedly connected to one side of the outside of the receiving box, the rotating shaft C is fixedly connected to the output end of the shock-resistant servo motor, the rotating shaft C rotates in the receiving box, the adjustable baffle is fixedly connected to the outside of the rotating shaft C, and the limiting block is fixedly connected to the bottom of the outside of the receiving box and used for limiting the adjustable baffle.

[0008] As a preferred technical scheme of the present application, the crushing and recycling mechanism comprises a fine-particle discharge port, a large-particle discharge port, a splash plate, a conveying belt, a crushing module and a communication conveying belt; the fine-particle discharge port is arranged at the bottom of the outside of the receiving box, the large-particle discharge port is arranged at the bottom of the outside of the receiving box close to the fine-particle discharge port, the splash plate is arranged at the bottom of the fine-particle discharge port, the conveying belt is arranged in the splash plate, the crushing module is arranged at the bottom of the large-particle discharge port, the communication conveying belt is fixedly connected to the output end of the crushing module, and the communication conveying belt communicates with the splash plate.

[0009] As a preferred technical scheme of the present application, the turnout switching mechanism comprises a sliding-out track, a connecting block, a track changer and a pneumatic cylinder; the sliding-out track is arranged on one side of the outside of the material line B, the pneumatic cylinder is arranged on the outside of the material line C, the connecting block is fixedly connected to the telescopic end of the pneumatic cylinder, the track changer is fixedly connected to the top of the connecting block, and the track changer is used in cooperation with the material line C, the material line B and the sliding-out track.

[0010] As a preferred technical scheme of the present application, the high tipping car is provided with a trolley machine on the outside, the trolley machine is fixedly connected with a water storage bag at the output end, the water storage bag is fixedly connected with a flow guide pipe at the output end, a water spraying head is fixedly connected to the top of the outside of the receiving box, and the water spraying head and the flow guide pipe are in communication with each other on the outside.

[0011] As a preferred technical scheme of the present application, the vibrating block is fixedly connected to the top of the outside of the rotating shaft A, and the vibrating block collides with the receiving box when the vibrating block is close to the receiving box.

[0012] The second object of the present application is to provide a method for using a coal mine ring-shaped yard for gravity dumping, realizing efficient circulating transportation and automatic unloading of mine cars.

[0013] In order to achieve the above object, the technical solution adopted by the present application is: a method for using a coal mine ring-shaped yard for gravity dumping, realizing the movement of mine materials on a ring-shaped track composed of material line A, material line B and material line C through the cooperation of a mine car main body and a car pushing machine, realizing transportation and automatic unloading.

[0014] The present application has the following beneficial effects: the coal mine ring-shaped yard for gravity dumping of the present application can complete circulating operation, realize rapid ground transportation, high-position car dumping and the like, is simple and convenient to maintain, greatly improves transportation efficiency and reduces maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of a coal mine ring-shaped yard for gravity dumping of the present application.

[0016] Figure 2 is a structural schematic view of a bulldozer in the coal mine ring-shaped yard for gravity dumping of the present application.

[0017] Figure 3 is a structural schematic view of a mine car main body in the coal mine ring-shaped yard for gravity dumping of the present application.

[0018] Figures 4 to 8 is a partial structural schematic view of a different perspective of a turnover assembly in the coal mine ring-shaped yard for gravity dumping of the present application; Figure 9 is a structural schematic view of a turnout switching assembly in the coal mine ring-shaped yard for gravity dumping of the present application.

[0019] In the figure: 1. material line A, 2. material line B, 3. material line C, 4. mine car main body, 5. car pushing machine, 51. car frame, 6. high-position car dumper, 7. rotating shaft A, 8. hydraulic rod, 9. limiting angle, 10. rotating shaft B, 11. fixed plate, 12. buckle, 13. receiving box, 14. large filter hole sieve plate, 15. anti-vibration servo motor, 16. rotating shaft C, 17. adjustable baffle, 18. limiting block, 19. fine particle discharge port, 20. large particle discharge port, 21. splash plate, 22. conveying belt, 23. crushing module, 24. transmission belt. DETAILED DESCRIPTION

[0020] The technical solution of the present application will be described in detail below in combination with the description of the drawings and specific embodiments.

[0021] Embodiment 1 As Figure 1As shown, a gravity-operated coal mine circular yard according to the present invention includes a circular track composed of material lines A1, B2, and C3 connected in sequence, a tilting assembly, and a switchgear assembly. Figure 2 As shown, a trolley machine 5 is slidably connected inside the material line A1, such as... Figure 3 As shown, a mine car body 4 is installed on the top of the outer side of material line A1. The mine car body 4 and the pusher 5 cooperate with each other to move above material line A1, material line B2 and material line C3.

[0022] The tilting assembly is located at the top of material line B2. Inside the tilting assembly are a gravity tilting mechanism, a screening mechanism, and a crushing and recycling mechanism. When the main body of the mine car 4 passes by, the mine car can be tilted and tilted to ensure that the ore inside is unloaded. After the unloaded frame is screened by the screening mechanism, the smaller sized ore is directly recycled, and the larger sized ore is crushed into smaller sizes by the crushing and recycling mechanism and then recycled.

[0023] The switchboard switching component is located on the top outside of material line C3, and can realize track switching of pusher 5 according to different working conditions.

[0024] Example 2 like Figures 1 to 3 As shown, similar to Embodiment 1, Embodiment 2 of the present invention provides a coal mine circular yard utilizing gravity tilting, comprising a circular track composed of material lines A1, B2, and C3 connected in sequence, a tilting assembly, and a switchgear assembly. Figure 2 As shown, a pusher 5 is slidably connected inside material line A1, and a mine car body 4 is set on the top of the outer side of material line A1. The mine car body 4 and the pusher 5 cooperate with each other to move above material line A1, material line B2 and material line C3.

[0025] Combination Figures 3 to 6 Unlike Embodiment 1, the tipping assembly includes a high-level tipper 6, a rotating shaft A 7, and a hydraulic rod 8; a high-level tipper 6 is provided on one side of the material line B 2, the rotating shaft A 7 is rotatably connected inside the high-level tipper 6, the rotating shaft A 7 is rotatably connected to the middle of the inner side of the high-level tipper 6, and a hydraulic rod 8 is hinged to the bottom of the outer side of the high-level tipper 6, the telescopic end of the hydraulic rod 8 is hinged to the outer side of the rotating shaft A 7.

[0026] The high-level tipper 6 drives the rotating shaft A 7 and hydraulic rod 8 to rotate, which can lift the main body 4 of the mine car and tilt it to prepare for subsequent unloading.

[0027] Example 3 like Figure 1As shown, similar to Embodiment 2, Embodiment 3 of the present invention provides a coal mine circular yard utilizing gravity tilting, comprising a circular track composed of material lines A1, B2, and C3 connected in sequence, a tilting assembly, and a switchgear assembly. Figure 2 As shown, a pusher 5 is slidably connected inside material line A1, and a mine car body 4 is set on the top of the outer side of material line A1. The mine car body 4 and the pusher 5 cooperate to move above material lines A1, B2, and C3. Figures 4 to 6 As shown, the tipping assembly includes a high-level tipper 6, a rotating shaft A 7, and a hydraulic rod 8; a high-level tipper 6 is provided on one side of the material line B 2, the rotating shaft A 7 is rotatably connected inside the high-level tipper 6, the rotating shaft A 7 is rotatably connected to the middle of the inner side of the high-level tipper 6, and a hydraulic rod 8 is hinged to the bottom of the outer side of the high-level tipper 6, the telescopic end of the hydraulic rod 8 is hinged to the outer side of the rotating shaft A 7.

[0028] Unlike Example 2, in Example 3, a gravity-operated coal mine circular yard of the present invention, such as... Figure 5 , Figure 6 and Figure 9 As shown, the gravity tipping mechanism includes a limiting angle 9, a rotating shaft B 10, a fixed plate 11, and a buckle 12. The rotating shaft A 7 is rotatably connected to the rotating shaft B 10 at the end away from the high-level tipper 6. The fixed plate 11 is hinged to the outside of the rotating shaft B 10. A limiting angle 9 is provided on the side of the rotating shaft A 7 near the rotating shaft B 10. The limiting angle 9 works in conjunction with the fixed plate 11. The buckle 12 is fixedly connected to the outside of the fixed plate 11 at the end away from the rotating shaft B 10. The buckle 12 limits the movement of the mine car body 4.

[0029] As the rotating shaft A7 rotates, it will drive the rotating shaft B10 to rotate as well. Then, through the limit angle 9 and the fixed plate 11, the main body 4 of the mine car, which is fitted with the buckle 12, will tilt and complete the unloading.

[0030] Example 4 like Figure 1 As shown, similar to Embodiment 3, Embodiment 4 of the present invention, a coal mine circular yard utilizing gravity tilting, also includes a circular track composed of material lines A1, B2, and C3 connected in sequence, a tilting assembly, and a switchgear assembly. Figure 2 As shown, a pusher 5 is slidably connected inside material line A1, and a mine car body 4 is set on the top of the outer side of material line A1. The mine car body 4 and the pusher 5 cooperate to move above material lines A1, B2, and C3. Figures 4 to 6As shown, the turnover assembly includes a high tipping machine 6, a rotating shaft A 7 and a hydraulic rod 8; the high tipping machine 6 is provided on the outer side of the material line B 2, the rotating shaft A 7 is rotatably connected inside the high tipping machine 6, the rotating shaft A 7 is rotatably connected to the middle inside of the high tipping machine 6, and the hydraulic rod 8 is hingedly connected to the bottom outside of the high tipping machine 6, and the extension end of the hydraulic rod 8 is hingedly connected to the outside of the rotating shaft A 7.

[0031] As shown in Figure 5 , Figure 6 and Figure 9 , the gravity pouring mechanism includes a limiting angle 9, a rotating shaft B 10, a fixed plate 11 and a buckle 12. The rotating shaft B 10 is rotatably connected to one end of the rotating shaft A 7 away from the high tipping machine 6, the fixed plate 11 is hingedly connected to the outside of the rotating shaft B 10, the limiting angle 9 is formed on one side of the rotating shaft A 7 close to the rotating shaft B 10, the limiting angle 9 is used in cooperation with the fixed plate 11, and the buckle 12 is fixedly connected to the end of the outside of the fixed plate 11 away from the rotating shaft B 10, and the buckle 12 limits the mine car body 4.

[0032] Different from example 3, in the coal mine ring-shaped yard of the application utilizing gravity pouring of example 4, as shown in Figures 4 to 9 , the screening mechanism includes a receiving box 13, a large filter hole sieve plate 14, a shock servo motor 15, a rotating shaft C 16, an adjustable baffle 17 and a limiting block 18; the receiving box 13 is fixedly connected to the top outside of the high tipping machine 6, the large filter hole sieve plate 14 is fixedly connected to the middle inside of the receiving box 13, the shock servo motor 15 is fixedly connected to one side of the outside of the receiving box 13, the rotating shaft C 16 is fixedly connected to the output end of the shock servo motor 15, the rotating shaft C 16 rotates inside the receiving box 13, the adjustable baffle 17 is fixedly connected to the outside of the rotating shaft C 16, and the limiting block 18 is fixedly connected to the bottom outside of the receiving box 13 and limits the adjustable baffle 17.

[0033] The crushing and recycling mechanism includes a fine particle discharge port 19, a large particle discharge port 20, a splash plate 21, a conveying belt 22, a crushing module 23 and a communication conveying belt 24; the fine particle discharge port 19 is formed on the bottom outside of the receiving box 13, the large particle discharge port 20 is formed on the bottom outside of the receiving box 13 close to the fine particle discharge port 19, the splash plate 21 is provided on the bottom of the fine particle discharge port 19, the conveying belt 22 is provided inside the splash plate 21, the crushing module 23 is provided on the bottom of the large particle discharge port 20, the communication conveying belt 24 is fixedly connected to the output end of the crushing module 23, and the communication conveying belt 24 communicates with the splash plate 21.

[0034] The small size of the falling ore is discharged from the fine particle discharge port 19 through the conveying belt 22 after passing through the screening hole on the large filter screen plate 14. The large size of the falling ore is crushed into small size by the crushing module 23 after being discharged from the large particle discharge port 20 above the large filter screen plate 14, and finally conveyed to the conveying belt 22 by the conveying belt 24.

[0035] Embodiment 5 The same as embodiment 4, embodiment 5 is a coal mine ring track using gravity pouring of the application, which also includes a ring track composed of material line A 1, material line B 2 and material line C 3 in turn, a turnover assembly and a turnout switching assembly. As shown in Figure 2 , the trolley machine 5 is slidingly connected inside the material line A 1, and the mine car body 4 is arranged at the top outside of the material line A 1. The mine car body 4 and the trolley machine 5 are mutually matched to move above the material line A 1, the material line B 2 and the material line C 3. As shown in Figures 4 to 6 , the turnover assembly includes a high tipping car 6, a rotating shaft A 7 and a hydraulic rod 8. The high tipping car 6 is arranged outside one side of the material line B 2. The rotating shaft A 7 is rotatably connected inside the high tipping car 6 and rotatably connected to the middle inside of the high tipping car 6. The hydraulic rod 8 is hingedly connected to the bottom outside of the high tipping car 6, and the extension end of the hydraulic rod 8 is hingedly connected to the outside of the rotating shaft A 7.

[0036] As shown in Figure 5 , Figure 6 , and Figure 9 , the gravity pouring mechanism includes a limiting angle 9, a rotating shaft B 10, a fixed plate 11 and a buckle 12. The rotating shaft B 10 is rotatably connected to one end of the rotating shaft A 7 away from the high tipping car 6. The fixed plate 11 is hingedly connected to the outside of the rotating shaft B 10. The limiting angle 9 is arranged on one side of the rotating shaft A 7 close to the rotating shaft B 10. The limiting angle 9 is used in cooperation with the fixed plate 11. The buckle 12 is fixedly connected to one end of the outside of the fixed plate 11 away from the rotating shaft B 10, and limits the mine car body 4.

[0037] As shown in Figures 4 to 9 , the screening mechanism includes a receiving box 13, a large filter screen plate 14, a shock-resistant servo motor 15, a rotating shaft C 16, an adjustable baffle 17 and a limiting block 18. The receiving box 13 is fixedly connected to the top outside of the high tipping car 6. The large filter screen plate 14 is fixedly connected to the middle inside of the receiving box 13. The shock-resistant servo motor 15 is fixedly connected to one side of the outside of the receiving box 13. The output end of the shock-resistant servo motor 15 is fixedly connected to the rotating shaft C 16. The rotating shaft C 16 rotates inside the receiving box 13. The adjustable baffle 17 is fixedly connected to the outside of the rotating shaft C 16. The limiting block 18 is fixedly connected to the bottom outside of the receiving box 13, and limits the adjustable baffle 17.

[0038] The crushing recovery mechanism comprises a fine particle discharge port 19, a large particle discharge port 20, a splash plate 21, a conveying belt 22, a crushing module 23 and a communication conveying belt 24. The fine particle discharge port 19 is arranged at the bottom of the outside of the receiving box 13. The large particle discharge port 20 is arranged at the bottom of the outside of the receiving box 13 near the fine particle discharge port 19. The splash plate 21 is arranged at the bottom of the fine particle discharge port 19. The conveying belt 22 is arranged in the splash plate 21. The crushing module 23 is arranged at the bottom of the large particle discharge port 20. The communication conveying belt 24 is connected to the output end of the crushing module 23. The communication conveying belt 24 is in communication with the splash plate 21.

[0039] Different from example 4, in the coal mine ring-shaped yard of the application for gravity pouring of example 5, as shown in the figure, Figure 7 The turnout switching mechanism comprises a sliding track 29, a connecting block 30, a rail changer 31 and a cylinder 32. The sliding track 29 is arranged on one side of the outside of the material line B 2. The cylinder 32 is arranged on the outside of the material line C 3. The connecting block 30 is connected to the telescopic end of the cylinder 32. The rail changer 31 is connected to the top of the connecting block 30. The rail changer 31 is used in cooperation with the material line C 3, the material line B 2 and the sliding track 29.

[0040] The starting of the cylinder 32 can realize the movement of the connecting block 30 in the sliding track 29, so that the different positions of the rail changer 31 realize the connection with the material line B 2, thereby realizing whether the trolley machine 5 drives away from the ring-shaped track composed of the material line A 1, the material line B 2 and the material line C 3 in turn.

[0041] Example 6 As shown in the figure, Figure 8 Different from example 5, in the coal mine ring-shaped yard of the application for gravity pouring of example 6, the trolley machine 5 is arranged on the outside of the high-position tumbler 6. The water storage bag 26 is connected to the output end of the trolley machine 5. The water storage bag 26 is connected to the output end of the water guide pipe 27. The water spraying head 28 is connected to the top of the outside of the receiving box 13. The water spraying head 28 is in communication with the water guide pipe 27, so that the receiving box 13 can be cleaned regularly.

[0042] The vibration block 33 is connected to the top of the outside of the rotating shaft A 7. When the vibration block 33 collides with the receiving box 13 near the receiving box 13, it can ensure that the ore material will not be accumulated in the receiving box 13.

Claims

1. A coal mine circular yard utilizing gravity dumping, comprising a circular track composed of material line A (1), material line B (2), and material line C (3) connected in sequence, characterized in that: The material line A (1) is slidably connected to a pusher (5), and a mine car body (4) is set on the top of the outer side of the material line A (1). The mine car body (4) and the pusher (5) cooperate with each other to move above the material line A (1), the material line B (2) and the material line C (3). The overturning component is located at the top of the material line B (2). The overturning component is equipped with a gravity tilting mechanism, a screening mechanism and a crushing and recycling mechanism. The switchboard switching assembly is located on the top outside of material line C (3).

2. The coal mine circular yard utilizing gravity tilting as described in claim 1, characterized in that, The overturning assembly includes a high-level tipper (6), a rotating shaft A (7), and a hydraulic rod (8); a high-level tipper (6) is provided on one side of the material line B (2), the rotating shaft A (7) is rotatably connected inside the high-level tipper (6), the rotating shaft A (7) is rotatably connected in the middle of the inner side of the high-level tipper (6), and a hydraulic rod (8) is hinged to the bottom of the outer side of the high-level tipper (6), and the telescopic end of the hydraulic rod (8) is hinged to the outer side of the rotating shaft A (7).

3. The coal mine circular yard utilizing gravity tilting as described in claim 2, characterized in that, The gravity tipping mechanism includes a limiting angle (9), a rotating shaft B (10), a fixing plate (11), and a buckle (12); the rotating shaft A (7) is rotatably connected to the rotating shaft B (10) at the end away from the high-level tipper (6), and the fixing plate (11) is hinged to the outside of the rotating shaft B (10). The limiting angle (9) is opened on the side of the rotating shaft A (7) close to the rotating shaft B (10). The limiting angle (9) is used in conjunction with the fixing plate (11). The buckle (12) is fixed to the outside of the fixing plate (11) away from the rotating shaft B (10). The buckle (12) limits the movement of the mine car body (4).

4. The coal mine circular yard utilizing gravity tipping as described in claim 3, characterized in that, The screening mechanism includes a receiving box (13), a large-pore screen plate (14), an anti-vibration servo motor (15), a rotating shaft C (16), an adjustable baffle (17), and a limiting block (18). The receiving box (13) is fixed to the top of the outer side of the high-level tipper (6). The large-pore screen plate (14) is fixed to the middle of the inner side of the receiving box (13). The anti-vibration servo motor (15) is fixed to one side of the outer side of the receiving box (13). The rotating shaft C (16) is fixed to the output end of the anti-vibration servo motor (15). The rotating shaft C (16) rotates inside the receiving box (13). The adjustable baffle (17) is fixed to the outer side of the rotating shaft C (16). The limiting block (18) is fixed to the bottom of the outer side of the receiving box (13). The limiting block (18) limits the adjustable baffle (17).

5. The coal mine circular yard utilizing gravity tilting as described in claim 4, characterized in that, The crushing and recycling mechanism includes a fine particle outlet (19), a large particle outlet (20), a splash guard (21), a conveyor belt (22), a crushing module (23), and a connecting conveyor belt (24). The bottom of the receiving box (13) is provided with a fine particle outlet (19). The bottom of the receiving box (13) is provided with a large particle outlet (20) near the fine particle outlet (19). The bottom of the fine particle outlet (19) is provided with a splash guard (21). The inside of the splash guard (21) is provided with a conveyor belt (22). The bottom of the large particle outlet (20) is provided with a crushing module (23). The output end of the crushing module (23) is fixedly connected to the connecting conveyor belt (24). The connecting conveyor belt (24) is connected to the splash guard (21).

6. The coal mine circular yard utilizing gravity tilting as described in claim 5, characterized in that, The switching mechanism includes a sliding track (29), a connecting block (30), a track changer (31), and a cylinder (32). The sliding track (29) is provided on one side of the material line B (2), and the cylinder (32) is provided on the outside of the material line C (3). The connecting block (30) is fixedly connected to the telescopic end of the cylinder (32), and the track changer (31) is fixedly connected to the top of the connecting block (30). The track changer (31) is used in conjunction with the material line C (3), the material line B (2), and the sliding track (29).

7. The coal mine circular yard utilizing gravity tilting as described in claim 6, characterized in that, A cart pusher (5) is provided on the outside of the high-level tipper (6). A water storage bladder (26) is fixedly connected to the output end of the cart pusher (5). A guide pipe (27) is fixedly connected to the output end of the water storage bladder (26). A water spray head (28) is fixedly connected to the top of the outside of the receiving box (13). The outside of the water spray head (28) is connected to the guide pipe (27).

8. The coal mine circular yard utilizing gravity tilting as described in claim 7, characterized in that, A vibration block (33) is fixed to the top of the outer side of the rotating shaft A (7). The vibration block (33) collides with the receiving box (13) when the rotating shaft A (7) approaches the receiving box (13).

9. The method of using the coal mine circular yard using gravity dumping as described in any one of claims 1-8, wherein the ore material is moved on the circular track composed of material line A (1), material line B (2), and material line C (3) by the cooperation of the mine car body (4) and the pusher (5), thereby realizing transportation and automated unloading.

Images