Unloading curved rail for mining dump truck

Abstract

The invention discloses an unloading curved rail for a mining dump truck, and relates to the technical field of mining transportation, the unloading curved rail comprises a plurality of rail sleepers, a side mounting rack and a driving base, two groups of transportation rails are fixedly mounted at the tops of the rail sleepers, and a transportation auxiliary rail is fixedly mounted at the top of the rail sleepers and located between the two transportation rails; bottom mounting frames are fixedly mounted at the tops of the rail sleepers, rail lifting frames are fixedly mounted at the tops of the bottom mounting frames, a top transverse rail is fixedly mounted in the center of the top of each rail lifting frame, and discharging bent rails are fixedly mounted on the two corresponding sides of each top transverse rail. And guide mounting frames are fixedly mounted at the top of the rail pillow and located on the two corresponding sides of the rail lifting frame. The hydraulic control type rotary guide rail has the beneficial effects that by adopting the hydraulic control type rotary guide rail, the position of the rotary guide rail can be controlled according to whether a mine car needs to unload in a stock bin or not in the using process; therefore, the discharging position can be flexibly controlled in the using process, and discharging is more convenient.

Description

Technical Field

[0001] This invention relates to the field of mining transportation technology, specifically to an unloading curved track for mining dump trucks. Background Technology

[0002] Mining dump trucks are a type of rail-mounted mining car, specifically designed for short-distance transport of ore, waste rock, materials, or personnel in confined spaces and harsh environments such as underground mine roadways and tunnels. Their core features are compact size, maneuverability, and robust explosion-proof design. By incorporating a self-unloading mechanism, when the vehicle reaches the unloading point, the unloading wheels on the truck bed rise along the unloading curved rail, forcing the truck bed to tilt to one side and opening the side door, allowing materials to be unloaded. As the vehicle continues forward, the unloading wheels disengage from the curved rail, the truck bed returns to its original position under its own weight, and the side door closes. This type of mining car is extremely common in the current mining industry. While dump trucks typically use an unloading crankshaft mounted on a rail, current technology requires multiple unloading points. Controlling the existing unloading crankshaft usually involves workers changing the rail, which is inconvenient. Therefore, we propose an unloading curved rail for mining dump trucks. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an unloading curved track for mining dump trucks, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an unloading curved rail for a mining dump truck, comprising several track sleepers, side mounting frames, and a drive base. Two sets of transport rails are fixedly installed on the top of each track sleeper. A secondary transport rail is fixedly installed on the top of each track sleeper, located between the two transport rails. A bottom mounting frame is fixedly installed on the top of each of the track sleepers. A rail lifting frame is fixedly installed on the top of each of the bottom mounting frames. A top horizontal rail is fixedly installed at the center of the top of the rail lifting frame. Unloading curved rails are fixedly installed on both sides corresponding to the top horizontal rail. Guide mounting frames are fixedly installed on both sides of the lifting frame. A rotating guide rail is rotatably connected to the top of the guide mounting frame. A connecting block is fixedly installed on one side of the rotating guide rail. A hydraulic rod is rotatably installed on one side of the side mounting frame. The output end of the hydraulic rod is rotatably connected to the connecting block. Track wheels are provided on both sides of the drive base. The track wheels cooperate with the transport track and the transport sub-track. A mine car body is rotatably installed on one side of the top of the drive base. A linkage mechanism is fixedly installed on one side of the bottom of the mine car body. The linkage mechanism cooperates with the top horizontal rail, the unloading curved rail, and the rotating guide rail.

[0005] Preferably, in this invention, the linkage mechanism includes an outer connecting frame, a linkage arm is rotatably mounted inside the outer connecting frame, and a discharge auxiliary wheel is rotatably mounted on one side of the linkage arm. The top horizontal rail, the discharge curved rail, and the rotation guide rail all cooperate with the discharge auxiliary wheel. By utilizing the cooperation between the discharge auxiliary wheel and the rotation guide rail, the discharge auxiliary wheel can move along the rotation guide rail into the discharge curved rail and gradually rise above the discharge curved rail, thereby affecting the angle of the mine car body and thus unloading.

[0006] Preferably, in this invention, a plurality of top mounting frames are fixedly installed on the top of the top horizontal rail and the top of the two unloading curved rails. A top restraint frame is fixedly installed inside the plurality of top mounting frames. When the unloading auxiliary wheel moves to a higher position, the center of gravity of the mine car body shifts. Thus, the top restraint frame can be used to block the unloading auxiliary wheel from above, preventing the unloading auxiliary wheel from moving further upward, thereby controlling the center of gravity of the mine car body.

[0007] Preferably, in this invention, a limiting component is provided inside the outer connecting frame to limit the rotation angle of the linkage arm inside the outer connecting frame. The limiting component is a metal block provided inside the outer connecting frame, which prevents the linkage arm from continuing to rotate to the left.

[0008] Preferably, in this invention, the track lifting frame is made by fixing and installing vertical and diagonal trusses, and a rear support rod is fixedly installed on one side of the track lifting frame. The bottom of the rear support rod is fixedly connected to the top of the bottom mounting frame, which increases the stability of the track lifting frame installation.

[0009] Preferably, in this invention, the bottom of the track sleeper is provided with anchor bolts, and the anchor bolts are pre-embedded in concrete at the corresponding positions in the mine tunnel, making the connection between the track sleeper and the ground more stable and easier to use.

[0010] Preferably, in this invention, both unloading curved tracks are inwardly concave arc structures. During the continuous rotation of the mine car body, the unloading auxiliary wheel actually moves in an arc with the rotation point of the mine car body and the drive base as the center. The unloading curved track with the inner arc structure can cooperate with the arc movement of the unloading auxiliary wheel, thereby preventing the unloading auxiliary wheel from detaching from the top of the unloading curved track.

[0011] Preferably, in this invention, a hydraulic station is connected to the outside of the hydraulic rod, and a remote control mechanism is provided inside the hydraulic station. The remote control mechanism allows the hydraulic station to control the extension and retraction of the hydraulic rod, thereby facilitating remote control without the need for operator intervention.

[0012] Preferably, in this invention, the drive base includes a traction motor, a reducer, a brake, and a coupling. The coupling is fixedly connected to one side of the track wheel. The drive base, as a power source, can drive the mine car body to move and stop.

[0013] This invention provides an unloading curved track for mining dump trucks, which has the following beneficial effects: 1. The unloading curved rail of this mining dump truck adopts a hydraulically controlled rotatable rotating guide rail. During use, the position of the rotating guide rail can be controlled according to whether the mining truck needs to unload at this hopper, so that the unloading position can be flexibly controlled during use, making unloading more convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a side view of the invention in the unloading state; Figure 5 This is a schematic diagram of the rotating guide rail of the present invention; Figure 6 This is a schematic diagram of the hydraulic system of the present invention.

[0015] In the diagram: 1. Rail sleeper; 2. Transport rail; 3. Transport auxiliary rail; 4. Bottom mounting frame; 5. Rail lifting frame; 6. Top cross rail; 7. Unloading curved rail; 8. Guide mounting frame; 9. Rotating guide rail; 10. Connecting block; 11. Hydraulic station; 12. Side mounting frame; 13. Hydraulic rod; 14. Rear support rod; 15. Mine car body; 16. Drive base; 17. Rail wheel; 18. External connecting frame; 19. Linkage arm; 20. Unloading auxiliary wheel; 21. Top mounting frame; 22. Top restraint frame. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] Please see Figures 1 to 6This invention provides a technical solution: an unloading curved rail for a mining dump truck, comprising several track sleepers 1, side mounting frames 12, and a drive base 16. Two sets of transport rails 2 are fixedly installed on the top of the track sleepers 1. A secondary transport rail 3 is fixedly installed on the top of the track sleepers 1 and between the two transport rails 2. A bottom mounting frame 4 is fixedly installed on the top of several track sleepers 1. A track lifting frame 5 is fixedly installed on the top of several bottom mounting frames 4. A top horizontal rail 6 is fixedly installed at the center of the top of the track lifting frame 5. Unloading curved rails 7 are fixedly installed on both sides of the top horizontal rail 6. Each of the drive base 16 is fixedly equipped with a guide mounting frame 8. A rotating guide rail 9 is rotatably connected to the top of the guide mounting frame 8. A connecting block 10 is fixedly installed on one side of the rotating guide rail 9. A hydraulic rod 13 is rotatably installed on one side of the side mounting frame 12. The output end of the hydraulic rod 13 is rotatably connected to the connecting block 10. Track wheels 17 are provided on both sides of the drive base 16. The track wheels 17 cooperate with the transport track 2 and the transport sub-track 3. A mine car body 15 is rotatably installed on one side of the top of the drive base 16. A linkage mechanism is fixedly installed on one side of the bottom of the mine car body 15. The linkage mechanism cooperates with the top horizontal rail 6, the unloading curved rail 7, and the rotating guide rail 9.

[0018] The linkage mechanism includes an outer connecting frame 18, with a linkage support arm 19 rotatably installed inside the outer connecting frame 18. A discharge auxiliary wheel 20 is rotatably installed on one side of the linkage support arm 19. The top horizontal rail 6, the discharge curved rail 7, and the rotation guide rail 9 all cooperate with the discharge auxiliary wheel 20. By utilizing the cooperation between the discharge auxiliary wheel 20 and the rotation guide rail 9, the discharge auxiliary wheel 20 can move along the rotation guide rail 9 into the discharge curved rail 7 and gradually rise above the discharge curved rail 7, thereby affecting the angle of the mine car body 15 and thus unloading.

[0019] Several top mounting brackets 21 are fixedly installed on the top of the top horizontal rail 6 and the top of the two unloading curved rails 7. A top restraint bracket 22 is fixedly installed inside the several top mounting brackets 21. When the unloading auxiliary wheel 20 moves to a higher position, the center of gravity of the mine car body 15 shifts. The top restraint bracket 22 can then block the unloading auxiliary wheel 20 from above, preventing it from moving further upward, thereby controlling the center of gravity of the mine car body 15.

[0020] The outer connecting frame 18 is equipped with a limiting component to restrict the rotation angle of the linkage arm 19 inside the outer connecting frame 18. The limiting component is a metal block installed inside the outer connecting frame 18, which prevents the linkage arm 19 from continuing to rotate to the left.

[0021] The track lifting frame 5 is made of vertical and diagonal trusses. A rear support rod 14 is fixedly installed on one side of the track lifting frame 5. The bottom of the rear support rod 14 is fixedly connected to the top of the bottom mounting frame 4, which increases the stability of the track lifting frame 5 installation.

[0022] Among them, the bottom of the track sleeper 1 is equipped with anchor bolts, and the anchor bolts are embedded in the corresponding position of the mine tunnel by concrete, which makes the connection between the track sleeper 1 and the ground more stable and more convenient to use.

[0023] Both unloading curved rails 7 are inwardly concave arc structures. During the continuous rotation of the mine car body 15, the unloading auxiliary wheel 20 actually moves in an arc with the rotation point of the mine car body 15 and the drive base 16 as the center. The unloading curved rail 7 with the inner arc structure can cooperate with the arc movement of the unloading auxiliary wheel 20, thereby preventing the unloading auxiliary wheel 20 from detaching from the top of the unloading curved rail 7.

[0024] The hydraulic rod 13 is connected to a hydraulic station 11 on its outer side. The hydraulic station 11 is equipped with a remote control mechanism. The remote control mechanism allows the hydraulic station 11 to control the extension and retraction of the hydraulic rod 13, thus facilitating remote control without the need for operator intervention.

[0025] The drive base 16 includes a traction motor, a reducer, a brake, and a coupling. The coupling is fixedly connected to one side of the track wheel 17. The drive base 16 serves as a power source and can move and stop the mine car body 15.

[0026] In summary, when the mine dump truck uses the unloading curved rail, as the mine car body 15 approaches the hopper, the operator controls the hydraulic rod 13 to extend via the hydraulic station 11, causing the rotating guide rail 9 to move towards the unloading auxiliary wheel 20. During this movement, the unloading auxiliary wheel 20 contacts the rotating guide rail 9 and follows it onto the unloading curved rail 7. As the height of the unloading curved rail 7 gradually increases, the mine car body 15 rotates to one side around the rotating connection point between the mine car body 15 and the drive base 16 to ensure normal movement. This tilts the entire mine car body 15, allowing the ore or gangue inside to be poured into the corresponding hopper. Because the unloading auxiliary wheel 20 becomes unbalanced due to excessive tilt angle when it moves to a higher position, a top restraint frame 22 is installed above the unloading curved rail 7 and the top horizontal rail 6 located at a higher position. The top restraint frame 22 restricts the unloading auxiliary wheel 20 from above, so that the unloading auxiliary wheel 20 moves in the following sequence: rotation guide rail 9 - unloading curved rail 7 - top horizontal rail 6 - unloading curved rail 7 - rotation guide rail 9. When the ore inside the mine car body 15 does not need to be poured into the hopper, the hydraulic station 11 only needs to control the hydraulic rod 13 to shorten, so that the rotation guide rail 9 and the unloading curved rail 7 are on the same line, so that the unloading auxiliary wheel 20 cannot contact the rotation guide rail 9.

[0027] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of shaft-shaped parts are connected by bearings, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this invention is mainly used to protect mechanical devices, this invention will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned herein, and the external controller is a conventional known device.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A curved unloading track for a mining dump truck, comprising a plurality of track sleepers (1), a side mounting bracket (12), and a drive base (16), characterized in that: Two sets of transport rails (2) are fixedly installed on the top of the sleeper (1). A transport subrail (3) is fixedly installed on the top of the sleeper (1) and between the two transport rails (2). A bottom mounting frame (4) is fixedly installed on the top of several sleepers (1). A rail lifting frame (5) is fixedly installed on the top of several bottom mounting frames (4). A top horizontal rail (6) is fixedly installed at the center of the top of the rail lifting frame (5). Unloading curved rails (7) are fixedly installed on both sides of the top horizontal rail (6). A guide mounting frame (8) is fixedly installed on the top of the sleeper (1) and on both sides of the rail lifting frame (5). The top of the guide mounting frame (8) is rotatably connected to... There is a rotating guide rail (9), a connecting block (10) is fixedly installed on one side of the rotating guide rail (9), a hydraulic rod (13) is rotatably installed on one side of the side mounting bracket (12), the output end of the hydraulic rod (13) is rotatably connected to the connecting block (10), and track wheels (17) are provided on both sides of the driving base (16). The track wheels (17) cooperate with the transport track (2) and the transport sub-track (3). The mine car body (15) is rotatably installed on one side of the top of the driving base (16), and a linkage mechanism is fixedly installed on one side of the bottom of the mine car body (15). The linkage mechanism cooperates with the top horizontal rail (6), the unloading curved rail (7), and the rotating guide rail (9).

2. The unloading curved track for a mining dump truck according to claim 1, characterized in that: The linkage mechanism includes an outer connecting frame (18), a linkage arm (19) is rotatably installed inside the outer connecting frame (18), and a discharge auxiliary wheel (20) is rotatably installed on one side of the linkage arm (19). The top horizontal rail (6), the discharge curved rail (7), and the rotation guide rail (9) are all in cooperation with the discharge auxiliary wheel (20).

3. The unloading curved track for a mining dump truck according to claim 1, characterized in that: Several top mounting brackets (21) are fixedly installed on the top of the top horizontal rail (6) and the top of the two unloading curved rails (7), and a top restraint bracket (22) is fixedly installed inside the several top mounting brackets (21).

4. The unloading curved track for a mining dump truck according to claim 2, characterized in that: The external connecting frame (18) is provided with a limit component inside.

5. The unloading curved track for a mining dump truck according to claim 1, characterized in that: The track lifting frame (5) is made by fixing and installing vertical and diagonal trusses. A rear support rod (14) is fixedly installed on one side of the track lifting frame (5), and the bottom of the rear support rod (14) is fixedly connected to the top of the bottom mounting frame (4).

6. The unloading curved track for a mining dump truck according to claim 1, characterized in that: The bottom of the track sleeper (1) is provided with anchor bolts, and the anchor bolts are embedded in the corresponding position of the mine roadway by concrete.

7. The unloading curved track for a mining dump truck according to claim 1, characterized in that: Both of the aforementioned unloading curved tracks (7) are inwardly concave arc-shaped structures.

8. The unloading curved track for a mining dump truck according to claim 1, characterized in that: The hydraulic rod (13) is connected to a hydraulic station (11) on the outside, and the hydraulic station (11) is equipped with a remote control mechanism.

9. The unloading curved track for a mining dump truck according to claim 1, characterized in that: The drive base (16) includes a traction motor, a reducer, a brake and a coupling, which is fixedly connected to one side of the track wheel (17).

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