A thin coal seam shuttle car based on synchronous gear space steering mechanism

Abstract

The present invention relates to a thin coal seam shuttle car based on a synchronous gear space steering mechanism, and belongs to the technical field of underground coal mine transportation vehicles. The present invention comprises a receiving part, a walking part, a steering mechanism, an intermediate frame, a discharge part, a driving control and a cable winding device. The receiving part and the intermediate frame are connected by bolts, the discharge part and the intermediate frame are hingedly connected by a pin shaft, the steering mechanism is connected to the intermediate frame, the driving control and the cable winding device are installed on the intermediate frame, and the steering mechanism is based on a synchronous gear space steering mechanism. The present invention broadens the application scope of the shuttle car, improves the mining efficiency of thin coal seams, and reduces the labor intensity of workers.

Description

Technical Field

[0001] This invention relates to a thin coal seam shuttle car based on a synchronous gear spatial steering mechanism, belonging to the technical field of underground coal mine transportation vehicles. Background Technology

[0002] In recent years, with the successful promotion of fully mechanized mining and longwall mining technologies and the continuous increase in mining intensity, the reserves of thick coal seams and above in some mines are decreasing, and thin coal seams have become the main mining seams. To ensure balanced mine production capacity, extend the service life of mines, and improve resource recovery rates, efficient mining of thin coal seams has become a critical issue urgently needing to be addressed in the current coal industry. Therefore, selecting appropriate mining methods and developing tunneling, support, and hauling equipment suitable for thin coal seam conditions plays a vital role in improving the efficiency of extreme coal resource mining and the sustainable development of old mining areas.

[0003] Thin coal seam mining has a lower mining height, which significantly limits the overall height of the shuttle car, making conventional shuttle cars unsuitable. Therefore, a new shuttle car for thin coal seams needs to be developed. Furthermore, most existing shuttle cars, both domestically and internationally, use a synchronous shaft steering mechanism. The synchronous shaft is located below the chain track, in the middle of the car's length. Its disadvantages include occupying space above the chain track, reducing the overall coal loading capacity, and affecting ground clearance. Since thin coal seam shuttle cars have a relatively small overall height, a new steering mechanism needs to be designed to meet the requirements of thin coal seam shuttle cars. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a thin coal seam shuttle car based on a synchronous tooth spatial steering mechanism.

[0005] This invention adopts the following technical solution: a spatial steering mechanism based on synchronous gears, comprising a hub I, a longitudinal tie rod I, a rocker arm I, a rocker arm II, a longitudinal tie rod II, a steering cylinder, a hub II, an upper steering arm II, a lower steering arm II, a lower steering arm I, an upper steering arm I, a hub III, a lower steering arm III, a lateral tie rod I, a lateral tie rod II, a lower steering arm IV, and a hub IV. The lower steering arm I and the upper steering arm I are respectively connected to the hub I. The upper steering arm II and the lower steering arm II are respectively connected to the hub II. The lower steering arm III is connected to the hub III, and the lower steering arm IV is connected to the hub IV. The two ends of tie rod I are hinged to lower steering arm III and lower steering arm I, respectively. The two ends of tie rod II are hinged to lower steering arm IV and lower steering arm II, respectively. The two ends of longitudinal tie rod I are hinged to upper steering arm I and rocker arm I, respectively. The two ends of longitudinal tie rod II are hinged to upper steering arm II and rocker arm II, respectively. The other end of rocker arm I is a rotating fixed gear end. The other end of rocker arm II is a rotating fixed gear end. The gears of rocker arm I and rocker arm II are identical and mesh with each other. One end of the steering cylinder is rotating fixed, and the other end of the steering cylinder is hinged to the middle of rocker arm II.

[0006] A thin coal seam shuttle car based on a synchronous gear spatial steering mechanism includes a receiving section, a traveling section, a steering mechanism, an intermediate frame, an unloading section, and a driving control and cable winding device. The receiving section and the intermediate frame are bolted together, the unloading section is hinged to the intermediate frame with a pin, the steering mechanism is connected to the intermediate frame, and the driving control and cable winding device is mounted on the intermediate frame. The steering mechanism is based on a synchronous gear spatial steering mechanism.

[0007] The receiving section's main function is to receive coal transported by the thin coal seam mining equipment, while avoiding the swaying of the equipment's tail chute; therefore, its height is relatively low compared to the rest of the machine. The traveling section drives the entire vehicle. The steering mechanism is a synchronous gear spatial steering mechanism, which allows for precise steering at a specified angle during thin coal seam shuttle operation. The intermediate frame mainly expands the volume to meet the vehicle's loading capacity. The unloading section's main function is to dump coal from the receiving section and intermediate frame onto the feed crusher or conveyor belt. The driving controls provide comfortable operation for the thin coal seam shuttle driver. The cable reel device ensures that the cable accompanying the vehicle is reeled in or unloaded according to the vehicle's speed during forward or backward movement, preventing the cable from being pulled apart or crushed. The receiving section and intermediate frame are bolted together, the unloading section is hinged to the intermediate frame with a pin, the steering mechanism is connected to both the intermediate frame and the traveling section, and the driving controls and cable reel device are all mounted on the intermediate frame.

[0008] When the steering mechanism is working, rocker arm I and rocker arm II maintain highly synchronized movement under the action of synchronizer gears. When the steering cylinder piston rod extends, rocker arm II rotates counterclockwise around point B, and longitudinal tie rod II moves under the drive of rocker arm II; the rotational angular displacement of rocker arm II is the same as that of rocker arm I, but in the opposite direction. The rotation of rocker arm I drives longitudinal tie rod I to move; longitudinal tie rod I drives upper steering arm I to rotate clockwise, and longitudinal tie rod II drives upper steering arm II to rotate counterclockwise, with upper steering arm I and upper steering arm II rotating at the same angle; wheel hub I and wheel hub II simultaneously rotate at angles of the same magnitude but in opposite directions. The rotation of wheel hub I drives lower steering arm I, lateral tie rod I, and lower steering arm III to move, and wheel hub III rotates at a certain angle; the rotation of wheel hub II drives lower steering arm II, lateral tie rod II, and lower steering arm IV to move, and wheel hub IV rotates at a certain angle; the angular displacement of wheel hub III is the same as that of wheel hub IV.

[0009] Compared with existing technologies, this invention broadens the application range of shuttle cars, improves the efficiency of thin coal seam mining, and reduces the labor intensity of workers. Simultaneously, this invention patent proposes a novel steering mechanism that significantly reduces the overall height of the vehicle while meeting the load capacity requirements, satisfying the design requirements of thin coal seam shuttle cars. This steering mechanism can achieve consistent swing angles of tires on the same side, improving steering accuracy. This invention patent has significant market potential. Attached Figure Description

[0010] Figure 1I is a schematic diagram of the structure arrangement of a thin coal seam shuttle car based on a synchronous tooth spatial steering mechanism;

[0011] Figure 2 Schematic diagram II of a thin coal seam shuttle structure arrangement based on a synchronous tooth spatial steering mechanism;

[0012] Figure 3 This is a schematic diagram showing the connection between the intermediate frame and the receiving section;

[0013] Figure 4 This is a schematic diagram of the unloading section;

[0014] Figure 5 Schematic diagram I of the synchronous gear steering mechanism;

[0015] Figure 6 Schematic diagram II of the synchronous gear steering mechanism;

[0016] Figure 7 Schematic diagrams of rocker arm I and rocker arm II;

[0017] Figure 8 This is a schematic diagram showing the connection between the steering arm and the wheel hub;

[0018] In the diagram: 1-Receiving section, 2-Traveling section, 3-Steering mechanism, 4-Intermediate frame, 5-Unloading section, 6-Driving control, 7-Cable winding device, 8-Hub I, 9-Longitudinal tie rod I, 10-Rocker arm I, 11-Rocker arm II, 12-Longitudinal tie rod II, 13-Steering cylinder, 14-Hub II, 15-Upper steering arm II, 16-Lower steering arm II, 17-Lower steering arm I, 18-Upper steering arm I, 19-Hub III, 20-Lower steering arm III, 21-Horizontal tie rod I, 22-Horizontal tie rod II, 23-Lower steering arm IV, 24-Hub IV, A-Rocker arm I 10 and intermediate frame 4 rotary connection point, B-Rocker arm II 11 and intermediate frame 4 rotary connection point, C-Steering cylinder 13 and intermediate frame 4 rotary connection point. Detailed Implementation

[0019] like Figure 1 , 2As shown in Figures 3 and 4, a thin coal seam shuttle car based on a synchronous gear spatial steering mechanism consists of a receiving section 1, a traveling section 2, a steering mechanism 3, an intermediate frame 4, an unloading section 5, a driving control 6, and a cable winding device 7. The receiving section 1 primarily receives coal transported by the thin coal seam mining equipment, while avoiding the swaying of the equipment's transport tail chute; therefore, its height is relatively low compared to the rest of the machine. The traveling section 2 drives the entire vehicle. The steering mechanism 3 is a synchronous gear spatial steering mechanism, which enables steering at a specified angle during thin coal seam shuttle car operation. The intermediate frame 4 primarily increases the overall vehicle loading capacity. The unloading section 5 primarily dumps coal from the receiving section 1 and the intermediate frame 4 onto a feed crusher or conveyor belt. The driving control 6 provides comfortable operation for the thin coal seam shuttle car driver. The cable winding device 7 is a power supply device for the vehicle, capable of synchronously winding and unwinding the cable as the vehicle moves forward or backward.

[0020] like Figure 5 , 6 As shown in Figures 7 and 8, a spatial steering mechanism based on synchronous gears includes a wheel hub I8, a longitudinal tie rod I9, a rocker arm I10, a rocker arm II11, a longitudinal tie rod II12, a steering cylinder I3, a wheel hub II14, an upper steering arm II15, a lower steering arm II16, a lower steering arm I17, an upper steering arm I18, a wheel hub III19, a lower steering arm III20, a lateral tie rod I21, a lateral tie rod II22, a lower steering arm IV23, and a wheel IV24. The lower steering arm I17 and the upper steering arm I18 are respectively connected to the wheel hub I8, and the upper steering arm II15 and the lower steering arm II16 are respectively connected to the wheel hub II14. The lower steering arm... III20 is connected to wheel hub III19, lower steering arm IV23 is connected to wheel hub IV24, the two ends of tie rod I21 are hinged to lower steering arm III20 and lower steering arm I17 respectively, the two ends of tie rod II22 are hinged to lower steering arm IV23 and lower steering arm II16 respectively, the two ends of longitudinal tie rod I9 are hinged to upper steering arm I18 and rocker arm I10 respectively, the two ends of longitudinal tie rod II12 are hinged to upper steering arm II15 and rocker arm II11 respectively, the gear end of rocker arm I10 is fixed by rotation, the gear end of rocker arm II11 is fixed by rotation; one end of steering cylinder 13 is fixed by rotation, and the other end is hinged to rocker arm II11.

[0021] When the steering mechanism is working, under the action of the steering cylinder 13, rocker arms I 10 and II 11 move with the same angular displacement but opposite directions. When the piston rod of the steering cylinder 13 extends, rocker arm II 11 rotates counterclockwise around point B. The longitudinal tie rod II 12 moves under the drive of rocker arm II 11. Under the action of the synchronizing gear, rocker arms I 10 and II 11 rotate with equal angular displacement but opposite directions. The rotation of rocker arm I 10 drives the longitudinal tie rod I 9 to move; the longitudinal tie rod I 9 drives the upper steering arm I 18 to rotate clockwise, and the longitudinal tie rod II 12 drives the upper steering arm II 15 to rotate counterclockwise. The upper steering arms I 17 and II 15 rotate at the same angle; wheel hubs I 8 and II 14 simultaneously rotate at angles of the same magnitude but opposite directions. The rotation of wheel hub I8 drives the lower steering arm I17, tie rod I21, and lower steering arm III20 to move, while wheel hub III19 rotates at a certain angle; the rotation of wheel hub II14 drives the lower steering arm II15, tie rod II22, and lower steering arm IV23 to move, while wheel hub IV24 rotates at a certain angle; the angular displacement of wheel hub III19 is the same as that of wheel hub IV24.

Claims

1. A synchronous gear space steering mechanism, characterized in that: The invention comprises a wheel hub I (8), a longitudinal tie rod I (9), a rocker arm I (10), a rocker arm II (11), a longitudinal tie rod II (12), a steering cylinder (13), a wheel hub II (14), an upper steering arm II (15), a lower steering arm II (16), a lower steering arm I (17), an upper steering arm I (18), a wheel hub III (19), a lower steering arm III (20), a transverse tie rod I (21), a transverse tie rod II (22), a lower steering arm IV (23) and a wheel hub IV (24), wherein the wheel hub I (8) is respectively connected to the lower steering arm I (17) and the upper steering arm I (18), the wheel hub II (14) is respectively connected to the upper steering arm II (15) and the lower steering arm II (16), the lower steering arm III (20) is connected to the wheel hub III (19), and the lower steering arm IV (23) is connected to the wheel hub IV (24). The two ends of the tie rod I (21) are respectively hinged to the lower steering arm III (20) and the lower steering arm I (17); the two ends of the tie rod II (22) are respectively hinged to the lower steering arm IV (23) and the lower steering arm II (16); the two ends of the longitudinal tie rod I (9) are respectively hinged to the upper steering arm I (18) and the rocker arm I (10); the two ends of the longitudinal tie rod II (12) are respectively hinged to the upper steering arm II (15) and the rocker arm II (11); the other end of the rocker arm I (10) is a rotationally fixed gear end; the other end of the rocker arm II (11) is a rotationally fixed gear end; the gears of the rocker arm I (10) and the rocker arm II (11) are completely the same and mesh with each other; one end of the steering cylinder (13) is rotationally fixed, and the other end of the steering cylinder (13) is hinged to the middle of the rocker arm II (11).

2. A thin coal seam shuttle car based on a synchronous tooth space steering mechanism, comprising a receiving part (1), a walking part (2), a steering mechanism (3), an intermediate frame (4), a discharge part (5), a driving control (6) and a cable winding device (7), characterized in that: The receiving part (1) and the intermediate frame (4) are connected by bolts, the unloading part (5) and the intermediate frame (4) are hingedly connected by a pin shaft, the steering mechanism (3) is connected to the intermediate frame (4), the driving control (6) and the cable winding device (7) are installed on the intermediate frame, and the steering mechanism (3) is the synchronous tooth space steering mechanism in claim 1.

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