Mining transport vehicle

Abstract

The utility model discloses a mining transport vehicle, which relates to the technical field of coal mining and comprises a chassis, a dumping device, a lifting platform and a cargo bucket. The self-unloading device comprises a tray and a telescopic rod. The tray is hinged to the chassis. The two ends of the telescopic rod are hinged to the chassis and the tray correspondingly so that the tray can be driven to rotate through stretching of the telescopic rod. The lifting table is provided with a fixed end and a lifting end capable of getting close to and away from the fixed end. The fixed end is fixedly connected with the tray. The hopper is fixedly connected with the lifting end. Compared with the prior art, the mining transport vehicle can provide help for maintenance work in a roadway.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a mining transport vehicle. Background Technology

[0002] Pipelines and lines are installed on the roof of underground coal mine roadways, and regular maintenance is required to ensure construction safety. Currently, this maintenance work is often carried out using ladders, requiring operators to climb with tools, which is inefficient and unsafe. Underground coal mine transport vehicles mainly include forklifts and trucks, which typically only have material transport functions and cannot provide lifting assistance for underground maintenance work. Utility Model Content

[0003] The purpose of this utility model is to provide a mining transport vehicle to solve the problems existing in the above-mentioned related technologies, so as to enable the transport vehicle to assist in the maintenance work in the tunnel.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model discloses a mining transport vehicle, comprising:

[0006] Chassis;

[0007] The self-unloading device includes a pallet and a telescopic rod; the pallet is hinged to the chassis; both ends of the telescopic rod are respectively hinged to the chassis and the pallet, so as to drive the pallet to rotate by the extension and retraction of the telescopic rod;

[0008] A lifting platform has a fixed end and a lifting end that can move closer to and further away from the fixed end; the fixed end is fixedly connected to the tray.

[0009] The cargo bin is fixedly connected to the lifting end.

[0010] Preferably, the mining transport vehicle further includes a folding boom, which has a fixed base and a suspended end that can move relative to the fixed base; the fixed base is fixedly connected to the chassis.

[0011] Preferably, the folding boom is a hydraulic boom, and the telescopic rod is a hydraulic telescopic rod; a hydraulic drive system is also installed on the chassis, which provides power to the folding boom and the telescopic rod.

[0012] Preferably, the hydraulic drive system also provides power for the braking and steering of the mining transport vehicle.

[0013] Preferably, the hydraulic drive system includes an oil tank, an oil pump motor, and a triple pump, wherein the three pump heads of the triple pump are designated as pump head one, pump head two, and pump head three; the oil pump motor drives the triple pump; pump head one is connected to the telescopic rod and the folding boom via hydraulic lines; pump head two is connected to the brake cylinder on the chassis for braking via hydraulic lines; and pump head three is connected to the steering cylinder on the chassis for steering via hydraulic lines.

[0014] Preferably, the mining transport vehicle further includes a battery pack fixed to the chassis; the battery pack supplies power to the oil pump motor, and a controller is provided between the battery pack and the oil pump motor, the controller being fixed to the chassis.

[0015] Preferably, the mining transport vehicle further includes a drive motor fixed to the chassis, the drive motor driving the wheels on the chassis to rotate; the battery pack supplies power to the drive motor, and a second controller is provided between the battery pack and the drive motor, the second controller being fixed to the chassis.

[0016] Preferably, the mining transport vehicle further includes a remote controller and a main controller fixed to the chassis; the main controller has a signal receiving unit for receiving control signals from the remote controller; the main controller is electrically connected to both controller one and controller two to output control signals to controller one and controller two respectively.

[0017] Preferably, the battery pack is an explosion-proof lithium iron phosphate battery pack.

[0018] Preferably, the wheels on the chassis are rubber wheels.

[0019] This utility model achieves the following technical advantages compared to related technologies:

[0020] When the telescopic boom is in its initial state, the pallet is horizontal. After the mining transport vehicle is driven to the area under the pipeline and line requiring maintenance, the lifting end of the hoisting platform is raised, causing the pallet to move upwards. The pallet carries the workers, maintenance tools, and replacement parts to the designated height, facilitating maintenance work. During this process, workers do not need to climb ladders or carry maintenance tools and replacement parts, reducing labor intensity and risk, and improving maintenance efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view of a mining transport vehicle in one of the examples of this utility model;

[0023] Figure 2 This is a top view of a mining transport vehicle in one of the examples of this utility model;

[0024] Figure 3 This is a left view of a mining transport vehicle in one of the examples of this utility model;

[0025] In the diagram: 1-cab; 2-battery pack; 3-controller two; 4-controller one; 5-main controller; 6-folding boom; 7-oil pump motor; 8-drive transmission system; 9-chassis; 10-cargo bin; 11-lifting platform; 12-valve group; 13-pallet. Detailed Implementation

[0026] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The purpose of this utility model is to provide a mining transport vehicle to solve the problems existing in the above-mentioned related technologies, so as to enable the transport vehicle to assist in the maintenance work in the tunnel.

[0028] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. In this embodiment, the front end of the mining transport vehicle is... Figure 1 The left-middle end, the rear end of the mining transport vehicle is Figure 1 Right middle end.

[0029] Reference Figures 1 to 3 This embodiment provides a mining transport vehicle, including a chassis 9, a self-unloading device, a lifting platform 11, and a cargo bin 10.

[0030] The self-unloading device includes a pallet 13 and a telescopic rod. The pallet 13 is hinged to the chassis 9. Both ends of the telescopic rod are hinged to the chassis 9 and the pallet 13 respectively, so that the pallet 13 can be rotated by the extension and retraction of the telescopic rod. The lifting platform 11 has a fixed end and a lifting end that can approach and move away from the fixed end. The fixed end is fixedly connected to the pallet 13. The hopper 10 is fixedly connected to the lifting end.

[0031] The working principle of the mining transport vehicle in this embodiment is as follows:

[0032] When the telescopic boom is in its initial state, the pallet 13 is horizontal. After the mining transport vehicle is driven to the area under the pipeline and line requiring maintenance, the lifting end of the lifting platform 11 is raised, causing the cargo bucket 10 to move upwards. The cargo bucket 10 carries the workers, maintenance tools, and replacement parts to a designated height, facilitating maintenance work. During this process, workers do not need to climb ladders or carry maintenance tools and replacement parts, reducing labor intensity and risk, and improving maintenance efficiency.

[0033] In some examples, the mining transport vehicle also includes a folding boom 6, which has a fixed base and a suspended end capable of moving relative to the fixed base. The fixed base is fixedly connected to the chassis 9.

[0034] It should be noted that some trucks have a cargo bed 10 with the ability to automatically unload goods at an angle, but manual handling is still required when loading goods. When the cargo bed 10 automatically unloads goods at an angle, the goods fall directly to the ground, which can easily cause damage to some of the goods.

[0035] In this embodiment, the folding boom 6 is folded up when not in use, without affecting the passage of mining transport vehicles. After the vehicle stops at the designated position, the folding boom 6 unfolds. The folding boom 6 can not only load goods onto the cargo bin 10, but also place the goods on the cargo bin 10 on the ground. This not only avoids the process of manually loading goods, but also improves the stability of unloading goods and avoids damage to goods due to violent collisions.

[0036] The rated lifting capacity of the folding boom 6 can be flexibly selected according to the different goods to be lifted, such as 2 tons, 2.5 tons, 3 tons, etc.

[0037] In some examples, the width of the mining transport vehicle is 1300–1500 mm, preferably 1400 mm. The length of the mining transport vehicle is 4800–5200 mm, and the height is 1800–2100 mm. These dimensions give the mining transport vehicle good maneuverability in confined spaces, thus expanding its range of motion. These dimensions refer to the size of the mining transport vehicle when the cargo bucket 10 is not tilted or raised, and the folding boom 6 is in the folded state.

[0038] In some examples, the folding boom 6 is a hydraulic boom, the telescopic rod is a hydraulic telescopic rod, and the lifting platform 11 is a hydraulic lifting platform. A hydraulic drive system is also installed on the chassis 9, providing power to the folding boom 6, the telescopic rod, and the lifting platform 11. Compared to electric drive, hydraulic drive is more suitable for high-load scenarios such as lifting heavy objects with the folding boom 6 and tilting the self-unloading device's tilting hopper 10. The folding boom 6, the telescopic rod, and the lifting platform 11 can adopt conventional structures in the art.

[0039] In some examples, the hydraulic drive system also powers the braking and steering of the mining transport vehicle. Specifically, the chassis 9 is equipped with a brake cylinder for braking and a steering cylinder for steering, both powered by the hydraulic drive system. The brake cylinder and steering cylinder can be installed using conventional methods in the art.

[0040] In some examples, the hydraulic drive system includes an oil tank, an oil pump motor 7, and a triple pump, with three pump heads designated as Pump Head 1, Pump Head 2, and Pump Head 3. The oil pump motor 7 drives the triple pump, and the three pump heads can operate independently. Pump Head 1 is connected to the folding boom 6, the telescopic boom, and the lifting platform 11 via hydraulic lines. Pump Head 2 is connected to the brake cylinder on the chassis 9 via hydraulic lines. Pump Head 3 is connected to the steering cylinder on the chassis 9 via hydraulic lines. Appropriate control valves can be installed on each hydraulic line as needed; all or some of the control valves are integrated into a valve assembly 12.

[0041] A transfer box can be installed between the oil pump motor 7 and the triple pump to distribute the power output of the oil pump motor 7 to the three pump heads.

[0042] In some examples, the mining transport vehicle also includes a battery pack 2 fixed to the chassis 9. The battery pack 2 supplies power to the oil pump motor 7, and a controller 4 is provided between the battery pack 2 and the oil pump motor 7. The controller 4 is fixed to the chassis 9 and is used to control the flow of current between the battery pack 2 and the oil pump motor 7.

[0043] The controller 4 has a DC-AC conversion circuit, which is used to convert the DC power provided by the battery pack 2 into the AC power required by the oil pump motor 7.

[0044] The battery pack 2 and the folding boom 6 are both located between the cab 1 and the cargo box 10 to prevent direct damage to the battery pack 2 and the folding boom 6 when the mining vehicle is hit from the front or rear, thus protecting the battery pack 2 and the folding boom 6.

[0045] In some examples, the mining transport vehicle also includes a drive motor fixed to the chassis 9, which drives the wheels on the chassis 9 to rotate. The battery pack 2 supplies power to the drive motor, and a controller 3 is provided between the battery pack 2 and the drive motor. The controller 3 is fixed to the chassis 9 and is used to control the flow of current between the battery pack 2 and the drive motor.

[0046] The drive motor transmits power to the wheels through a transmission structure. The drive motor and the transmission structure are integrated into a single unit, namely the drive transmission system 8. The transmission structure can adopt conventional structural forms in the art. In this embodiment, the drive motor is preferably a switched reluctance motor.

[0047] In some examples, the mining transport vehicle also includes a remote controller and a main controller 5 fixed to the chassis 9. The main controller 5 has a signal receiving unit for receiving control signals from the remote controller. The main controller 5 is electrically connected to controller 4 and controller 3 respectively to output control signals to controller 4 and controller 3 respectively.

[0048] The main controller 5, by sending control signals to controller 4, can control the actions of the brake cylinder, steering cylinder, folding boom 6, telescopic boom, and lifting platform 11, respectively, to achieve braking, steering, deployment and folding of the folding boom 6, extension and retraction of the telescopic boom, and lifting of the lifting end of the mining transport vehicle. The main controller 5, by sending control signals to controller 3, can provide power for the forward and reverse rotation of the wheels. Therefore, workers do not need to be inside the cab 1; they can wirelessly control the mining transport vehicle from outside using a remote control, improving worker safety and meeting the needs of mining transport vehicles in dangerous areas of underground coal mine roadways.

[0049] In some examples, battery pack 2 is an explosion-proof lithium iron phosphate battery pack. Compared with ternary lithium batteries, lithium iron phosphate batteries have higher thermal stability, which improves safety.

[0050] In some examples, the wheels on chassis 9 are rubber wheels, such as natural rubber wheels, nitrile rubber wheels, and polyurethane rubber wheels, for trackless transportation. Compared to rail transport using metal wheels, trackless transport using rubber wheels avoids gas explosions caused by friction sparks, improves safety, and reduces noise.

[0051] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A mining transport vehicle, characterized in that, include: Chassis; The self-unloading device includes a pallet and a telescopic rod; the pallet is hinged to the chassis; both ends of the telescopic rod are respectively hinged to the chassis and the pallet, so as to drive the pallet to rotate by the extension and retraction of the telescopic rod; A lifting platform has a fixed end and a lifting end that can move closer to and further away from the fixed end; the fixed end is fixedly connected to the tray. The cargo bin is fixedly connected to the lifting end.

2. The mining transport vehicle according to claim 1, characterized in that: It also includes a folding boom having a fixed base and a suspended end movable relative to the fixed base; the fixed base is fixedly connected to the chassis.

3. The mining transport vehicle according to claim 2, characterized in that: The folding boom is a hydraulic boom, and the telescopic rod is a hydraulic telescopic rod; a hydraulic drive system is also installed on the chassis, which provides power to the folding boom and the telescopic rod.

4. The mining transport vehicle according to claim 3, characterized in that: The hydraulic drive system also provides power for the braking and steering of the mining transport vehicle.

5. The mining transport vehicle according to claim 4, characterized in that: The hydraulic drive system includes an oil tank, an oil pump motor, and a triple pump. The three pump heads of the triple pump are designated as pump head one, pump head two, and pump head three. The oil pump motor drives the triple pump. Pump head one is connected to the telescopic rod and the folding boom via hydraulic lines. Pump head two is connected to the brake cylinder on the chassis via hydraulic lines. Pump head three is connected to the steering cylinder on the chassis via hydraulic lines.

6. The mining transport vehicle according to claim 5, characterized in that: It also includes a battery pack fixed to the chassis; the battery pack supplies power to the oil pump motor, and a controller is provided between the battery pack and the oil pump motor, the controller being fixed to the chassis.

7. The mining transport vehicle according to claim 6, characterized in that: It also includes a drive motor fixed to the chassis, which drives the wheels on the chassis to rotate; the battery pack supplies power to the drive motor, and a second controller is provided between the battery pack and the drive motor, which is fixed to the chassis.

8. The mining transport vehicle according to claim 7, characterized in that: It also includes a remote controller and a main controller fixed on the chassis; the main controller has a signal receiving unit for receiving control signals from the remote controller; the main controller is electrically connected to both controller one and controller two to output control signals to controller one and controller two respectively.

9. The mining transport vehicle according to claim 6, characterized in that: The battery pack is an explosion-proof lithium iron phosphate battery pack.

10. The mining transport vehicle according to claim 1, characterized in that: The wheels on the chassis are rubber wheels.

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