A flatbed truck with double cabs applied to the coal industry

Abstract

The present application discloses a flatbed truck with a double cab for use in the coal industry, which includes: a frame; a first cab provided at the first end of the frame; a second cab provided at the second end of the frame; and a hydraulic system installed inside the frame; wherein the hydraulic system is respectively connected to the first cab and the second cab to enable two-way driving of the first cab and the second cab. By providing the first cab at the first end of the frame and the second cab at the second end of the frame, and connecting the hydraulic system to the first cab and the second cab respectively to achieve two-way driving of the first cab and the second cab, it is not restricted by the conditions of the workplace and can be used without turning around, making it flexible and convenient to use.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a flatbed truck with a double cab used in the coal industry. Background Art

[0002] With the rapid development of the coal industry, more and more automated equipment is being used in the coal industry, and many traditional production and transportation methods can no longer meet the requirements. In the process of coal mining, many equipment, materials and other items need to be continuously transported to the working tunnels of coal mines. The existing transportation vehicles are mostly trackless rubber-wheeled vehicles or rail transport vehicles and special transport vehicles.

[0003] These modes of transportation all have certain shortcomings. Special transport vehicles and rubber-tyred trackless vehicles are limited by their structure and workplace conditions, require a large space to turn around, and are not flexible enough to use. Summary of the invention

[0004] 1. Technical issues to be solved:

[0005] The purpose of the present invention is to provide a flatbed truck with a double cab for use in the coal industry to solve the problem of insufficient flexibility in use.

[0006] (II) Technical solution:

[0007] In order to solve the above technical problems, the present application provides a flatbed truck with a double cab for use in the coal industry, which includes: a frame; a first cab, arranged at the first end of the frame; a second cab, arranged at the second end of the frame; and a hydraulic system, installed inside the frame; wherein the hydraulic system is respectively connected to the first cab and the second cab to enable the first cab and the second cab to be driven in both directions.

[0008] In some embodiments, optionally, a steering tire set is installed at the lower portion of the frame.

[0009] In some embodiments, optionally, the hydraulic system includes a main pump, which is connected to a travel drive motor group, which is connected to the steering tire group and is used to control the travel of the steering tire group, and the main pump is connected to a forward control valve and a reverse control valve and is used to control the forward and backward movement of the steering tire group.

[0010] In some embodiments, optionally, the travel drive motor group includes a first travel drive motor, a second travel drive motor, a third travel drive motor and a second travel drive motor.

[0011] In some embodiments, optionally, the first traveling drive motor and the second traveling drive motor are both connected to a parking control valve, and the parking control valve is connected to the steering tire set to enable manual braking.

[0012] In some embodiments, optionally, the third traveling drive motor and the fourth traveling drive motor are both connected to a first brake valve in the first cab and a second brake valve in the second cab, and the first brake valve and the second brake valve are connected to the steering tire set for braking.

[0013] In some embodiments, optionally, the hydraulic system further includes a steering control pump, and the steering control pump is connected to a plurality of steering control valves, and the steering control valves are connected to steering cylinders for controlling the steering of the flatbed truck.

[0014] In some embodiments, optionally, the hydraulic system further includes a control pump, and the control pump is connected to the parking control valve, the first brake valve, and the second brake valve.

[0015] In some embodiments, optionally, the hydraulic system further includes a throttle control valve, and the throttle control valve is connected to the control pump, and the throttle control valve is connected to the first brake valve, the second brake valve, a plurality of the steering control valves, and the parking control valve, and the throttle control valve is connected to a throttle control cylinder.

[0016] In some embodiments, optionally, a power compartment is provided at the lower part of the frame, and the hydraulic system is installed inside the power compartment.

[0017] (III) Advantageous Effects:

[0018] For the technical solution provided in this application, a first cab is provided at the first end of the frame, and a second cab is provided at the second end of the frame. The hydraulic system is respectively connected to the first cab and the second cab to realize two-way driving of the first cab and the second cab. Therefore, it is not restricted by the conditions of the working place and can be used without turning around, and is flexible and convenient to use.

[0019] Based on the following detailed description of the specific embodiments of this application in conjunction with the drawings, those skilled in the art will more clearly understand the above and other purposes, advantages, and features of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Some specific embodiments of this application will be described in detail hereinafter with reference to the drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1Side view of a flatbed truck with a double cab applied to the coal industry according to an embodiment of the present application;

[0022] Figure 2 Schematic structural diagram of the hydraulic system of a flatbed truck with a double cab applied to the coal industry according to an embodiment of the present application.

[0023] Reference numerals:

[0024] 1. Frame;

[0025] 2. First cab;

[0026] 3. Steering tire group;

[0027] 4. Power compartment;

[0028] 5. Second cab;

[0029] 6. Main pump;

[0030] 7. Steering control pump;

[0031] 8. Control pump;

[0032] 9. Forward control valve;

[0033] 10. Reverse control valve;

[0034] 11. First travel drive motor;

[0035] 12. Second travel drive motor;

[0036] 13. Third travel drive motor;

[0037] 14. Fourth travel drive motor;

[0038] 15. First steering control valve;

[0039] 16. Second steering control valve;

[0040] 17. Parking control valve;

[0041] 18. Third steering control valve;

[0042] 19. Fourth steering control valve;

[0043] 20. First brake valve;

[0044] 21. Second brake valve;

[0045] 22. Throttle control valve;

[0046] 23. First steering cylinder;

[0047] 24. Second steering cylinder;

[0048] 25. Third steering oil cylinder

[0049] 26. Fourth steering oil cylinder

[0050] 27. Throttle control cylinder Detailed implementation mode

[0051] The following will further introduce the present application in detail through specific embodiments in conjunction with the accompanying drawings. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0052] In the description of the present application, it should be noted that unless there are clear regulations and limitations, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. It can be the communication inside two components. "First", "second", "third", and "fourth" do not represent any sequence relationship, and are only for the convenience of description for distinction. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0053] Due to the problem that the current flatbed truck is not flexible enough to use, the present application provides a flatbed truck with a double cab applied to the coal industry.

[0054] The following will describe the product in detail through basic design, extended design, and replacement design.

[0055] Embodiment 1:

[0056] As Figure 1 shown, a flatbed truck with a double cab applied to the coal industry includes: a frame 1, a first cab 2 is provided at the first end of the frame 1, a second cab 5 is provided at the second end of the frame 1, and a hydraulic system is installed inside the frame 1. Among them, the hydraulic system is respectively connected to the first cab 2 and the second cab 5 so that the first cab 2 and the second cab 5 can achieve two-way driving.

[0057] The first cab 2 is provided at the first end of the frame 1, the second cab 5 is provided at the second end of the frame 1, and the hydraulic system is respectively connected to the first cab 2 and the second cab 5 to achieve two-way driving of the first cab 2 and the second cab 5. Therefore, it is not restricted by the working site conditions and can be used without turning around. It is flexible and convenient to use, and is not restricted by the site road conditions and space size, nor by the size of materials and equipment. It can transport the required materials and equipment to the designated working position.

[0058] Of course, the size of the frame 1 is adapted to the diameter of the mine to avoid the problem of the flatbed truck getting stuck. Furthermore, the frame 1 is made of stainless steel.

[0059] Optionally, the first cab 2 and the second cab 5 have the same structure and are basically no different from existing cabs. Both are used for driving flatbed trucks, are not restricted by workplace conditions, can be used without turning around, and are flexible and convenient to use.

[0060] In this embodiment, the first cab 2 includes a first handbrake lever, a first accelerator pedal and a first steering wheel. The first handbrake lever is connected to the parking control valve 17, the first accelerator pedal is connected to the accelerator control valve 22, and the first steering wheel is connected to the steering shaft of the steering tire group 3. By pulling the first handbrake lever, a signal is given to the control pump 8, and the control pump 8 controls the parking control valve 17 to open, prompting the steering tire group 3 to stop working and complete manual braking. A signal is given to the control pump 8 through the first accelerator pedal, and the control pump 8 controls the accelerator control valve 22 to open, completing refueling and reducing oil. The steering shaft is driven to rotate by the first steering wheel to prompt the steering tire group to change direction.

[0061] In this embodiment, the second cab 5 includes a second handbrake lever, a second accelerator pedal and a second steering wheel. The second handbrake lever is connected to the parking control valve 17, the second accelerator pedal is connected to the accelerator control valve 22, and the second steering wheel is connected to the steering shaft of the steering tire group 3. By pulling the second handbrake lever, a signal is given to the control pump 8, and the control pump 8 controls the parking control valve 17 to open, prompting the steering tire group 3 to stop working and complete manual braking. A signal is given to the control pump 8 through the second accelerator pedal, and the control pump 8 controls the accelerator control valve 22 to open, completing refueling and reducing oil. The second steering wheel drives the steering shaft to rotate, prompting the steering tire group to change direction.

[0062] Embodiment 2:

[0063] This embodiment is a newly added design based on Embodiment 1. Figure 1 As shown, optionally, a steering tire group 3 is installed at the lower part of the frame 1. The steering tire group 3 includes a first steering tire, a second steering tire, a third steering tire and a fourth steering tire, and the number of steering tires can be determined according to actual conditions.

[0064] It should be noted here that the first steering tire, the second steering tire, the third steering tire and the fourth steering tire are all existing steering tires.

[0065] Embodiment 3:

[0066] As Figure 2 shown, further, the hydraulic system includes a main pump 6, which is connected to a traveling drive motor group, and the traveling drive motor group is connected to the steering tire group 3 for controlling the traveling of the steering tire group 3 and providing power to the steering tire group 3. The main pump 6 is connected to a forward control valve 9 and a reverse control valve 10 for controlling the forward and backward movement of the steering tire group 3.

[0067] Among them, the main pump 6 is an existing pump, and any pump commonly used in existing automobiles can be used, and any known model can be used.

[0068] It should be noted here that: the forward control valve 9 is an existing forward control, and the reverse control valve 10 connection is an existing reverse control valve.

[0069] Embodiment 4:

[0070] This embodiment is a newly added design based on Embodiment 3. As Figure 2 shown, optionally, the traveling drive motor group includes a first traveling drive motor 11, a second traveling drive motor 12, a third traveling drive motor 13, and a fourth traveling drive motor 14. Among them, the first traveling drive motor 11, the second traveling drive motor 12, the third traveling drive motor 13, and the fourth traveling drive motor 14 are all existing traveling drive motors.

[0071] Embodiment 5:

[0072] This embodiment is a newly added design based on Embodiment 3. As Figure 2 shown, optionally, the first traveling drive motor 11 and the second traveling drive motor 12 are both connected to a parking control valve 17, and the parking control valve 17 is connected to the steering tire group 3 to achieve manual braking.

[0073] It should be noted here that: the parking control valve 17 is an existing parking control valve.

[0074] Embodiment 6:

[0075] This embodiment is a newly added design based on Embodiment 3. As Figure 2 shown, optionally, the third traveling drive motor 13 and the fourth traveling drive motor 14 are both connected to a first brake valve 20 in the first cab 2 and a second brake valve 21 in the second cab 5, and the first brake valve 20 and the second brake valve 21 are connected to the steering tire group 3 for braking.

[0076] Among them, the first brake valve 20 and the second brake valve 21 are both existing brake valves.

[0077] Example 7:

[0078] This example is a newly added design based on Example 3. As Figure 2 shown, the hydraulic system further includes a steering control pump 7, the steering control pump 7 is connected to a plurality of steering control valves, and the steering control valves are connected to steering cylinders for controlling the steering of the flatbed truck.

[0079] Among them, the plurality of steering control valves are respectively a first steering control valve 15, a second steering control valve 16, a third steering control valve 18, and a fourth steering control valve 19. The plurality of steering cylinders are respectively a first steering cylinder 23, a second steering cylinder 24, a third steering cylinder 25, and a fourth steering cylinder 26. The first steering control valve 15 is connected to the first steering cylinder 23, the second steering control valve 16 is connected to the second steering cylinder 24, the third steering control valve 18 is connected to the third steering cylinder 25, and the fourth steering control valve 19 is connected to the fourth steering cylinder 26.

[0080] It should be noted here that: the first steering control valve 15, the second steering control valve 16, the third steering control valve 18, and the fourth steering control valve 19 are all existing steering control valves, and various models can be used. The first steering cylinder 23, the second steering cylinder 24, the third steering cylinder 25, and the fourth steering cylinder 26 are all existing steering cylinders, and various models can be used.

[0081] Example 8:

[0082] This example is a newly added design based on Example 3. As Figure 2 shown, the hydraulic system further includes a control pump 8, and the control pump 8 is connected to the parking control valve 17, the first brake valve 20, and the second brake valve 21. Among them, the control pump 8 is an existing pump, and any pump commonly used in existing automobiles can be used, and known models can be used.

[0083] Example 9:

[0084] This example is a newly added design based on Example 3. As Figure 2 shown, optionally, the hydraulic system further includes a throttle control valve 22, the throttle control valve 22 is connected to the control pump 8, the throttle control valve 22 is connected to the first brake valve 20, the second brake valve 21, a plurality of steering control valves, and the parking control valve 17, and the throttle control valve 22 is connected to a throttle control cylinder 27. Among them, the throttle control valve 22 is an existing throttle control valve, and the throttle control cylinder 27 is an existing throttle control cylinder.

[0085] Embodiment 10:

[0086] This embodiment is a newly added design based on Embodiment 1. As Figure 1 shown, optionally, a power compartment 4 is provided at the lower part of the frame 1, and the hydraulic system is installed inside the power compartment 4.

[0087] During specific use:

[0088] This flatbed truck adopts full hydraulic drive control, and the engine drives a group of series pumps.

[0089] 1. The main pump 6 drives the first traveling drive motor 11, the second traveling drive motor 12, the third traveling drive motor 13, and the fourth traveling drive motor 14 to control the driving of the vehicle, and is connected through the forward control valve 9 and the reverse control valve 10 of the vehicle to control the forward and reverse of the vehicle;

[0090] 2. The steering control pump 7 controls the first steering cylinder 23, the second steering cylinder 24, the third steering cylinder 25, and the fourth steering cylinder 26 connected thereto respectively through the first steering control valve 15, the second steering control valve 16, the third steering control valve 18, and the fourth steering control valve 19, and is respectively connected to the first steering tire, the second steering tire, the third steering tire, and the fourth steering tire to control the steering of the vehicle;

[0091] 3. The control pump 8 is for vehicle braking and throttle control. The parking control valve 17 is used to control the parking function. The first brake valve 20 and the second brake valve 21 are respectively distributed in two cabs to control the braking function. The throttle control valve 22 controls the throttle size adjustment cylinder to control the vehicle speed.

[0092] 4. A set of control boxes is placed in the first cab 2 and the second cab 5 respectively. When entering the first cab 2, the control box inside the first cab 2 is activated, and at the same time, the control box inside the second cab 5 is automatically locked. The control system consists of an operation box and a human-machine interface. The operation box consists of an operation handle and status buttons. The function of the operation handle is to control the forward and backward movement and steering of the vehicle. The functions of the status control knobs are: key switch, emergency stop, parking brake, steering adjustment, slow speed adjustment, anti-slip adjustment control. The human-machine interface uses a self-developed bus communication display screen, which can realize the function of human-machine interaction during the operation of the vehicle. The main functions include: display of the operation status, system fault alarm, recording of important parameters during the operation process, etc. The operation box and the human-machine interface communicate with the vehicle central control unit through an industrial bus to complete data transmission and control functions. Before starting the locomotive, first turn on the parking brake knob. After the human-machine interface displays "N", push the universal handle of the operation box to realize the forward and backward movement and steering functions of the vehicle. The human-machine interface displays "D" and "R" representing the forward and backward movement of the vehicle. When steering, the turn signals of the vehicle are turned on, and at the same time, the steering status monitoring light on the human-machine interface is turned on. When parking, the handle returns to the zero position, and the vehicle stops. Before getting off, turn the parking brake knob to the closed state, and the human-machine interface displays "P".

[0093] At this time, the first steering control valve 15 and the second steering control valve 16 are activated to control the front-wheel steering function of the vehicle. The third steering control valve 18 and the fourth steering control valve 19 are locked, and the steering tire group 3 is in the 0-degree position, and the turning function of the vehicle can be normally controlled.

[0094] The first brake valve 20 and the second brake valve 21 are distributed in the first cab 2 and the second cab 5. When entering the first cab 2, step on the first brake valve 20 in the first cab 2 to control the braking function of the vehicle. When the foot releases the brake pedal, the braking function is lost. Similarly, the working mode of entering the second cab 5 is the same.

[0095] The parking handles in the first cab 2 and the second cab 5 generate electrical signals, which can operate the parking control valve 17 to complete the parking function; when entering the first cab 2, the parking handle inside it is activated, and the parking handle inside the second cab 5 is locked.

[0096] The accelerator pedals in the first cab 2 and the second cab 5 generate electrical signals, which can operate the accelerator control valve 22, and through the accelerator control cylinder 27, control the size of the accelerator and adjust the driving speed of the vehicle. When entering the first cab 2, the accelerator pedal inside it is activated, and the accelerator pedal inside the second cab 5 is locked.

[0097] There are gear levers for vehicle forward and reverse in the first driver's cab 2 and the second driver's cab 5, which generate electrical signals to control the forward and reverse movement of the vehicle. When entering the first driver's cab 2, the forward and reverse handle inside it is activated, and the forward and reverse handle in the second driver's cab 5 is locked. When the forward and reverse gear lever in the first driver's cab 2 is shifted to the forward gear, the vehicle moves forward; when shifted to the reverse gear, the vehicle moves backward. When entering the second driver's cab 5, since the front and rear directions of the vehicle's driving direction are reversed, the forward signal at this time acts on the vehicle reverse control valve 10 to control the vehicle's movement.

[0098] As described above, only the preferred specific implementation mode of this application is provided, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the technical field of this application within the technical scope disclosed in this application should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A flatbed truck with a double cab applied to the coal industry, comprising: A frame; A first cab, provided at the first end of the frame; A second cab, provided at the second end of the frame; And A hydraulic system, installed inside the frame; wherein, the hydraulic system is respectively connected to the first cab and the second cab to enable two-way driving of the first cab and the second cab; A steering tire set is installed at the lower part of the frame; The hydraulic system includes a main pump, the main pump is connected to a traveling drive motor set, the traveling drive motor set is connected to the steering tire set for controlling the traveling of the steering tire set, the main pump is connected to a forward control valve and a reverse control valve for controlling the forward and backward movement of the steering tire set; The traveling drive motor set includes a first traveling drive motor, a second traveling drive motor, a third traveling drive motor and a fourth traveling drive motor; The main pump is a bidirectional variable hydraulic pump, the bidirectional variable hydraulic pump includes an A oil port, a B oil port and a swash plate, the first traveling drive motor, the second traveling drive motor, the third traveling drive motor and the fourth traveling drive motor all include a first hydraulic oil inlet and a second hydraulic oil inlet, any one of the first hydraulic oil inlets is directly connected to the A oil port, and any one of the second hydraulic oil inlets is directly connected to the B oil port; the forward control valve and the reverse control valve are both two-position four-way directional control valves; one end of the swash plate is connected to the B port of the forward control valve, and the other end of the swash plate is connected to the B port of the reverse control valve; the T ports of the forward control valve and the reverse control valve are both connected to the fuel tank; the P ports of the forward control valve and the reverse control valve are both connected to the outlet of a shuttle valve; the shuttle valve further includes a first inlet and a second inlet, the first inlet is connected to the A oil port, and the second inlet is connected to the B oil port.

2. The flatbed truck with a double cab applied to the coal industry according to claim 1, characterized in that: The first traveling drive motor and the second traveling drive motor are both connected to a parking control valve, and the parking control valve is connected to the steering tire set to enable manual braking.

3. The flatbed truck with a double cab applied to the coal industry according to claim 2, characterized in that: The third traveling drive motor and the fourth traveling drive motor are both connected to a first brake valve in the first cab and a second brake valve in the second cab, and the first brake valve and the second brake valve are connected to the steering tire set for braking.

4. The flatbed truck with a double cab applied to the coal industry according to claim 3, characterized in that: The hydraulic system further includes a steering control pump, the steering control pump is connected to a plurality of steering control valves, and the steering control valves are connected to steering cylinders for controlling the steering of the flatbed truck.

5. The flatbed truck with a double cab applied to the coal industry according to claim 4, characterized in that: The hydraulic system further includes a control pump, and the control pump is connected to the parking control valve, the first brake valve, and the second brake valve.

6. The flatbed truck with a double cab applied to the coal industry according to claim 5, characterized in that: The hydraulic system further includes a throttle control valve, the throttle control valve is connected to the control pump, the throttle control valve is connected to the first brake valve, the second brake valve, a plurality of the steering control valves, and the parking control valve, and the throttle control valve is connected to a throttle control cylinder.

7. The flatbed truck with a double cab applied to the coal industry according to claim 1, characterized in that: A power compartment is provided at the lower part of the frame, and the hydraulic system is installed inside the power compartment.

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