A pure electric driving two-way driving muck transport vehicle

Abstract

The utility model relates to the technical field of transport vehicle, especially a pure electric drive two -way driving's muck transport vehicle. Its technical scheme includes: main driver's cabin, frame unit and power module, power module sets up on the frame unit, and main driver's cabin and camera are arranged in the head and tail of frame unit respectively, and main driver's cabin is equipped with display screen, and camera is electrically connected with display screen through electric control system and is used for mirror image projection to the image behind the vehicle on display screen, and frame unit is provided with drive suspension unit and driven suspension unit and realizes multimode steering through hydraulic control unit, and electric control system and hydraulic control unit constitute two -way driving mode control system in coordination. The utility model through the collaborative design of pure electric drive and two -way driving control system, realized the zero emission, low noise operation and two -way safe driving of tunnel construction vehicle without turning round, significantly improved the operation efficiency and driving safety of tunnel transportation.

Description

Technical Field

[0001] This utility model relates to the field of transport vehicle technology, and in particular to a pure electric bidirectional muck transport vehicle. Background Technology

[0002] In construction environments with confined spaces such as tunnels and mines, dump trucks are crucial transportation tools. However, the widely used traditional fuel-powered dump trucks have revealed numerous problems in these conditions. First, their internal combustion engines produce large amounts of toxic and harmful exhaust gases when operating in enclosed spaces, severely deteriorating the construction environment, endangering the health of workers, and failing to meet the requirements of green construction development.

[0003] Secondly, due to the limited space in tunnels, turning around is extremely difficult, or even impossible, greatly reducing transportation efficiency. Although some bidirectional driving vehicles exist on the market, they usually adopt a scheme with two cabs arranged symmetrically front and rear. This structure not only increases the overall manufacturing cost and weight of the vehicle, but also makes the vehicle's passability worse because the additional cab occupies valuable space, making it unsuitable for extreme working conditions.

[0004] Furthermore, traditional dump trucks have a single steering mode and a large turning radius, resulting in insufficient maneuverability in narrow curves inside tunnels, requiring multiple adjustments to pass through, further impacting operational efficiency. Additionally, when exiting a tunnel, the need for long-distance reversing creates large blind spots and poses high safety risks.

[0005] Therefore, we propose a pure electric bidirectional muck truck to solve the existing problems. Utility Model Content

[0006] The purpose of this invention is to address the problems existing in the background technology by proposing a pure electric bidirectional muck truck.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pure electric bidirectional driving muck truck, comprising a main cab, a frame unit and a power module, wherein the power module is mounted on the frame unit to provide a pure electric power source for the whole vehicle; The driver's cab is located at the front end of the frame unit. A display screen is installed in the driver's cab. A camera is installed at the rear end of the frame unit. The camera and the display screen are electrically connected through an electronic control system to project images of the rear of the vehicle onto the display screen. The frame unit is equipped with a drive suspension unit and a driven suspension unit. The drive suspension unit and the driven suspension unit achieve multi-mode steering through a hydraulic control unit. The frame unit is also equipped with a cargo box assembly. The electronic control system and the hydraulic control unit work together to form a two-way driving mode control system. The system is configured to: lock the front wheel steering and switch to rear wheel steering controlled by the steering wheel in the rear driving mode, while setting the vehicle's gear operation logic to correspond to the opposite direction of travel.

[0008] Preferably, in the rear driving mode, the steering input of the steering wheel and the steering output of the rear wheels are in opposite directions; and the forward gear of the gear lever corresponds to the vehicle moving backward, and the reverse gear corresponds to the vehicle moving forward.

[0009] Preferably, the power module includes a high-capacity battery and its mounting bracket. The power module is fixed to the lower middle section of the vehicle frame unit by the mounting bracket. The high-capacity battery is equipped with a battery management system (BMS) to provide electrical energy for the vehicle's driving, braking, steering, and lifting.

[0010] Preferably, the drive suspension unit includes a drive motor, a drive shaft, leaf springs, a steering drive axle, tires, and wheel rims. The drive suspension unit is mounted below the vehicle frame unit via leaf springs and suspension mounting brackets to achieve vehicle drive.

[0011] Preferably, the driven suspension unit includes a leaf spring, a steering brake axle, a tire, and a wheel rim. The driven suspension unit is mounted below the vehicle frame unit via the leaf spring and suspension mounting bracket, and is used to cooperate with the drive suspension unit to realize vehicle driving and steering.

[0012] Preferably, the hydraulic control unit includes a housing, a steering proportioning valve group, an accumulator, a main relief valve, a pressure sensor, and a pressure gauge. The hydraulic control unit is installed on the side of the frame unit near the driver's cab and is used to control the vehicle's steering actions and the lifting actions of the cargo box assembly.

[0013] Preferably, the cargo box assembly includes a cargo box body, a lifting cylinder, and a lifting mechanism. The lifting cylinder is connected to the hydraulic control unit, and the cargo box body is connected to the vehicle frame unit through the lifting cylinder and the lifting mechanism.

[0014] Preferably, the electronic control system includes an electronic control module, a battery device, a starting control circuit, a gear shifting device, an instrument device, and lighting and signaling devices. The electronic control system is installed on the side of the frame unit near the hydraulic control unit. The starting control circuit has a neutral start protection function. The electronic control system is electrically connected to the output terminal of the power module and realizes centralized control of driving, steering, braking and lifting through the electronic control module. The switching logic of the two-way driving mode control system is executed by the electronic control module.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model completely eliminates exhaust emissions in tunnels by using a power module to provide a pure electric power source for the vehicle, improves the working environment, and achieves green construction with zero emissions and low noise. At the same time, the pure electric drive has high energy conversion efficiency and significantly lower operating costs than traditional fuel vehicles. Through a two-way driving mode control system composed of an electronic control system and a hydraulic control unit, combined with a mirror projection system consisting of a rear camera and a display screen in the driver's cab, two-way safe driving under a single driver's cab is realized. In the rear driving mode, the driver can operate the vehicle to drive in the opposite direction without turning around, which perfectly solves the industry pain point that vehicles cannot turn around in narrow tunnels and greatly shortens the vehicle's turnaround time in the tunnel. Thanks to the multi-mode steering function enabled by the hydraulic control unit, the vehicle can flexibly switch steering modes according to operating conditions. Especially in rear driving mode, the system automatically locks the front wheels and switches to steering wheel control for the rear wheels, with the steering input and output being inversely related. This design gives the vehicle the same intuitive handling when reversing as when driving forward, reducing the difficulty of operation and the risk of misoperation for the driver, and improving safety. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a side view of the structure of this utility model.

[0017] Figure label: 1. Display screen; 2. Driver's cab; 3. Chassis unit; 4. Power module; 5. Camera; 6. Cargo box assembly; 7. Drive suspension unit; 8. Driven suspension unit; 9. Hydraulic control unit; 10. Electronic control system. Detailed Implementation

[0018] 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.

[0019] Example 1 like Figures 1-4As shown, the present invention proposes a pure electric bidirectional driving muck truck, including a main cab 2, a frame unit 3 and a power module 4. The power module 4 is installed in the lower middle part of the frame unit 3 and is fixedly connected to the frame structure through a mounting bracket, forming the pure electric drive power source of the whole vehicle. The power module 4 is equipped with a large-capacity battery and a battery management system (BMS) to provide electrical energy output for the vehicle's driving, braking, steering and cargo box lifting, so as to realize pure electric operation and low-noise transportation.

[0020] The main driver's cab 2 is located at the front end of the frame unit 3 and is used by the driver to operate the vehicle's driving, steering and control functions. The display screen 1 is installed in the front center of the main driver's cab 2 and is used to display the rear image and control information of the vehicle in real time. The camera 5 is fixed at the rear end of the frame unit 3 and is electrically connected to the display screen 1 through the electronic control system 10. It is used to collect the driving scene of the rear of the vehicle and project the image onto the display screen 1, so that the driver can perform reverse observation and two-way driving operation in the main driver's cab 2.

[0021] The frame unit 3 is the load-bearing basic structure of the whole vehicle, and it is equipped with the drive suspension unit 7 and the driven suspension unit 8. It is used to support the weight of the whole vehicle and realize multi-mode steering. The drive suspension unit 7 includes a drive motor, drive shaft, leaf spring, steering drive axle, tire and rim. The drive suspension unit 7 is connected to the lower part of the frame unit 3 through the leaf spring and suspension mounting bracket to realize the power output and road surface adaptation of the vehicle.

[0022] The driven suspension unit 8 includes leaf springs, a steering and braking axle, tires, and wheel rims. The driven suspension unit 8 is connected to the frame unit 3 through a suspension mounting bracket. It works in conjunction with the drive suspension unit 7 to achieve smooth vehicle driving and assisted steering control, ensuring the stability and controllability of the vehicle under complex road conditions.

[0023] Example 2 like Figures 1-4 As shown, the present invention proposes a pure electric bidirectional driving muck truck. Compared with Embodiment 1, this embodiment further includes: a hydraulic control unit 9 arranged on the side of the frame unit 3 near the main cab 2. The hydraulic control unit 9 includes a housing, a steering proportion valve group, an accumulator, a main overflow valve, a pressure sensor and a pressure gauge. The hydraulic control unit 9 is connected to the drive suspension unit 7 and the driven suspension unit 8 to adjust the hydraulic pressure and realize multi-mode steering control of the vehicle in different operating scenarios. At the same time, the hydraulic control unit 9 is connected to the cargo box assembly 6 to control the lifting and lowering of the cargo box.

[0024] The cargo box assembly 6 is mounted on the upper middle part of the frame unit 3 and includes the cargo box body, lifting cylinder, and lifting mechanism. The lifting cylinder is hydraulically connected to the hydraulic control unit 9 and is driven by the cylinder to tilt and lift the cargo box body to complete the loading and unloading of slag. The lifting mechanism is hinged to the frame unit 3 and is used to support the smooth movement of the cargo box body during the lifting and returning process.

[0025] The electronic control system 10 is located on the side of the frame unit 3 near the hydraulic control unit 9. It includes an electronic control module, a battery device, a starting control circuit, a gear shifting device, an instrument device, and lighting and signaling devices. The electronic control system 10 is electrically connected to the power module 4. The electronic control module centrally controls the driving, steering, braking, and lifting. The starting control circuit has a neutral start protection function to ensure operational safety.

[0026] The electronic control system 10 and the hydraulic control unit 9 work together to form a two-way driving mode control system. When the vehicle enters the rear driving mode, the electronic control module automatically locks the front wheel steering, activates the rear wheel steering function controlled by the steering wheel, and switches the gear logic to correspond to the opposite direction of the vehicle's driving direction; when the steering wheel is turned to the left, the rear wheels turn to the right, and when the steering wheel is turned to the right, the rear wheels turn to the left; the forward gear of the gear lever corresponds to the vehicle moving backward, and the reverse gear corresponds to the vehicle moving forward. Through this control strategy, the driver can observe the rear view of the vehicle from the main cab 2 using the display screen 1 to complete reverse driving without the need for a second cab, achieving efficient two-way operation in tunnels and narrow spaces.

[0027] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pure electric bidirectional driving muck truck, comprising a main cab (2), a frame unit (3), and a power module (4), characterized in that: The power module (4) is mounted on the frame unit (3) to provide a pure electric drive power source for the whole vehicle; The main driver's cab (2) is located at the front end of the frame unit (3). The main driver's cab (2) is equipped with a display screen (1). The rear end of the frame unit (3) is equipped with a camera (5). The camera (5) and the display screen (1) are electrically connected through an electronic control system (10) to project the image of the rear of the vehicle onto the display screen (1). The frame unit (3) is provided with a drive suspension unit (7) and a driven suspension unit (8). The drive suspension unit (7) and the driven suspension unit (8) achieve multi-mode steering through a hydraulic control unit (9). The frame unit (3) is also provided with a cargo box assembly (6). The electronic control system (10) and the hydraulic control unit (9) work together to form a two-way driving mode control system. The system is configured to: lock the front wheel steering and switch to rear wheel steering controlled by the steering wheel in the rear driving mode, while setting the vehicle's gear operation logic to correspond to the opposite direction of driving.

2. The pure electric bidirectional driving muck truck according to claim 1, characterized in that: In the rear driving mode, the steering input of the steering wheel and the steering output of the rear wheels are in opposite directions; and the forward gear of the gear lever corresponds to the vehicle moving backward, while the reverse gear corresponds to the vehicle moving forward.

3. The pure electric bidirectional driving muck truck according to claim 1, characterized in that: The power module (4) includes a large-capacity battery and its mounting bracket. The power module (4) is fixed to the lower middle section of the frame unit (3) by the mounting bracket. The large-capacity battery is equipped with a battery management system (BMS) to provide power for the vehicle's driving, braking, steering and lifting.

4. A pure electric bidirectional driving muck transport vehicle according to claim 1, characterized in that: The drive suspension unit (7) includes a drive motor, a drive shaft, a leaf spring, a steering drive axle, a tire, and a wheel rim. The drive suspension unit (7) is mounted below the frame unit (3) via the leaf spring and the suspension mounting bracket to achieve vehicle drive.

5. A pure electric bidirectional driving muck transport vehicle according to claim 1, characterized in that: The driven suspension unit (8) includes a leaf spring, a steering brake axle, a tire and a rim. The driven suspension unit (8) is mounted below the frame unit (3) via the leaf spring and the suspension mounting bracket, and is used to cooperate with the drive suspension unit (7) to realize vehicle driving and steering.

6. A pure electric bidirectional driving muck truck according to claim 1, characterized in that: The hydraulic control unit (9) includes a housing, a steering proportion valve group, an accumulator, a main relief valve, a pressure sensor, and a pressure gauge. The hydraulic control unit (9) is installed on the side of the frame unit (3) near the driver's cab (2) and is used to control the steering action of the vehicle and the lifting action of the cargo box assembly (6).

7. A pure electric bidirectional driving muck transport vehicle according to claim 1, characterized in that: The cargo box assembly (6) includes a cargo box body, a lifting cylinder and a lifting mechanism. The lifting cylinder is connected to the hydraulic control unit (9), and the cargo box body is connected to the frame unit (3) through the lifting cylinder and the lifting mechanism.

8. A pure electric bidirectional driving muck truck according to claim 1, characterized in that: The electronic control system (10) includes an electronic control module, a battery device, a starting control circuit, a gear shifting device, an instrument device, and a lighting and signaling device. The electronic control system (10) is installed on the side of the frame unit (3) near the hydraulic control unit (9). The starting control circuit has a neutral start protection function. The electronic control system (10) is electrically connected to the output end of the power module (4) and realizes centralized control of driving, steering, braking and lifting through the electronic control module. The switching logic of the two-way driving mode control system is executed by the electronic control module.

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