Pure electric double-head concrete mixer truck

Abstract

The utility model discloses a pure electric double-head concrete mixer truck which comprises a truck frame, a front cab and a rear cab are arranged at the two ends of the upper portion of the truck frame respectively, a pure electric mixing tank is installed in the middle of the upper portion of the truck frame and driven by an upper motor, and a steering mechanism and a driving motor for driving the steering mechanism are installed below the truck frame. The steering mechanism comprises steering axles, the steering axles are divided into a front group and a rear group, each group comprises two axles, namely a driving steering axle and a driven steering axle, and a driving motor drives the two groups of driving steering axles through a transfer case. Driving of the vehicle and operation of the stirring tank are driven by the driving motor and the upper motor respectively, a transmission system is simplified, the transmission efficiency is improved, the types of parts of the transmission system of the whole vehicle are reduced, meanwhile, air pollution and noise pollution are reduced, and the service life of the vehicle is prolonged. And the cabs at the two ends of the double-end concrete mixer truck can perform steering control on the wheels at the two ends, so that the double-end concrete mixer truck can run bidirectionally without turning around, and is compact in structure, ingenious in layout and wide in application range.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete mixer trucks, specifically to a pure electric double-head concrete mixer truck. Background Technology

[0002] In the construction industry, concrete mixer trucks are generally used to transport concrete for projects with large concrete demand. A concrete mixer truck, also known as a concrete mixer transport truck, is a device used for mixing and transporting concrete. Currently, most concrete mixer trucks on the market are diesel-powered and single-head drive. These vehicles are limited by poor ventilation and difficulty in turning during tunnel construction, resulting in low efficiency and high pollution. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a pure electric dual-head concrete mixer truck.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pure electric double-head concrete mixer truck includes a frame, with a front cab and a rear cab respectively located at the upper two ends of the frame, and a pure electric mixing tank installed in the middle of the upper part. The mixing tank is driven by an upper motor, and a steering mechanism and a drive motor for driving the steering mechanism are installed under the frame.

[0006] As a preferred embodiment of the above solution, the steering mechanism includes a steering axle, which is divided into two groups, front and rear, connected to both ends of the bottom surface of the vehicle frame. Each group has two axles, namely a drive steering axle and a driven steering axle. The drive motor drives the two groups of drive steering axles through a transfer case.

[0007] As a preferred embodiment of the above scheme, a tie rod is hinged to the steering knuckle of the drive steering axle and the driven steering axle respectively. The other end of the tie rod is hinged to the steering arm. The steering arm is rotatably mounted on the frame through a steering arm pin seat. The two steering arms are connected by a tie rod. Steering cylinders are installed on both the drive steering axle and the driven steering axle. The steering cylinders are hinged to the steering knuckles at both ends through the tie rods. A centering cylinder is installed above the drive steering axle. One end of the centering cylinder is mounted on a cylinder support on the frame, and the other end is hinged to the steering arm between the drive steering axle and the driven steering axle.

[0008] As a preferred embodiment of the above solution, the steering cylinder has a single-piston, double-piston rod structure, with the cylinder barrel fixed on the steering axle and the piston rod hinged to the side steering knuckle arms of the steering knuckles at both ends via a tie rod.

[0009] As a preferred embodiment of the above solution, the steering mechanism further includes a centering cylinder, one end of which is mounted on a cylinder support on the vehicle frame, and the other end is hinged to a steering arm between the drive steering axle and the driven steering axle.

[0010] As a preferred embodiment of the above scheme, the upper motor drives the mixing tank to rotate via a reducer to achieve agitation and unloading.

[0011] As a preferred embodiment of the above scheme, an electrical control box and a hydraulic station are installed on the frame, located on one side of the front cab. The electrical control system in the electrical control box is connected to the drive motor and the superstructure motor through wiring, and the hydraulic station is connected to the steering cylinder and the centering cylinder through pipelines.

[0012] As a preferred embodiment of the above solution, a battery box is also installed under the vehicle frame, and a power battery connected to the drive motor and the superstructure motor is installed inside the battery box.

[0013] Due to the above structure, the beneficial effects of this utility model are as follows:

[0014] The vehicle's movement and the mixing tank's operation are driven by the drive motor and the superstructure motor, respectively, which simplifies the transmission system, improves transmission efficiency, and reduces the number of parts in the overall vehicle transmission system. It also reduces air and noise pollution. Moreover, both cabs of the dual-head concrete mixer truck can control the steering of both wheels, allowing for bidirectional travel without turning around. It has a compact structure, ingenious layout, and wide applicability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the steering mechanism structure of this utility model;

[0018] Figure 3 for Figure 2 A magnified view of a portion of the image. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] like Figures 1 to 3 As shown, this embodiment provides a pure electric double-head concrete mixer truck, including a frame 1. The upper two ends of the frame 1 are respectively provided with a front cab 2 and a rear cab 3. A pure electric mixing tank 4 is installed in the upper middle part. The mixing tank is driven by an upper motor 18. A steering mechanism and a drive motor 8 for driving the steering mechanism are installed under the frame 1.

[0021] Specifically:

[0022] The steering mechanism includes a steering axle, which is divided into two groups, front and rear, connected to both ends of the bottom surface of the frame 1. Each group has two axles: a drive steering axle 9 and a driven steering axle 10. The drive motor 8 drives the two groups of drive steering axles 9 through a transfer case. Wheels 11 are mounted on both the drive steering axle 9 and the driven steering axle 10. A tie rod I 13 is hinged to the steering knuckle of each of the drive steering axle 9 and the driven steering axle 10. The other end of the tie rod I 13 is hinged to a steering swing arm 14. The steering swing arm 14 is rotatably mounted on the frame 1 through a steering swing arm pin seat. The two steering swing arms 14 are connected by a tie rod II 15. A steering cylinder 16 is mounted on both the drive steering axle 9 and the driven steering axle 10. The steering cylinder 16 is hinged to the steering knuckles at both ends through a tie rod. The steering cylinder 16 has a single-piston, double-piston rod structure. The cylinder barrel is fixed on the steering axle, and the piston rod is hinged to the side steering knuckle arms of the steering knuckles at both ends through a tie rod.

[0023] The steering mechanism also includes a centering cylinder 17, one end of which is mounted on a cylinder support on the frame 1, and the other end is hinged to a steering arm 14 between the drive steering axle 9 and the driven steering axle 10.

[0024] An electrical control box 5 and a hydraulic station 6 are mounted on the frame 1, located on one side of the front cab 2. The electrical control system in the electrical control box 5 is connected to the drive motor 8 and the superstructure motor 18, and is used to control the vehicle's movement and the rotation speed and steering of the mixing tank 4. The superstructure motor 18 drives the mixing tank 4 to rotate through a reducer to achieve agitation and unloading. The hydraulic station 6 is connected to the steering cylinder 16 and the centering cylinder 17 through pipelines to provide hydraulic power for them.

[0025] A battery box 7 is also installed below the frame 1. The battery box 7 contains a power battery that is connected to the drive motor 8 and the superstructure motor 18 to provide them with power.

[0026] The working principle of the above structure:

[0027] The vehicle's movement and the mixing tank's operation are driven by the drive motor and the superstructure motor, respectively, which simplifies the transmission system, improves transmission efficiency, reduces the number of parts in the overall vehicle transmission system, and also reduces air and noise pollution. Moreover, both cabs of the dual-head concrete mixer truck can control the steering of both wheels, allowing it to travel in both directions without turning around.

[0028] The steering mechanism in this embodiment is part of the steering system of a dual-head concrete mixer truck. The steering system mainly consists of a steering pump, power steering unit, electro-proportional directional valve, centering solenoid valve, steering cylinder, centering cylinder, steering arm, steering tie rod, and angle sensor. The steering axle in the steering mechanism is divided into front and rear groups. The front and rear steering axles are operated separately and in conjunction with each other via an angle sensor and controller, providing multi-mode steering. An electro-hydraulic composite steering system is used, with the vehicle's steering mode selected via buttons: front axle steering, figure-eight steering, and diagonal driving mode. When the driving mode is front axle steering, the power steering unit at one end is operated, and the other wheel is in the center position and locked by the corresponding centering cylinder. When the driving modes are figure-eight and diagonal driving, the steering operation is performed by operating the power steering unit through the driver's cab steering wheel, pushing the front group steering. The front group steering angle signal controls the rear group steering to achieve figure-eight and diagonal driving. Conversely, the steering operation is performed by operating the power steering unit through the other driver's cab steering wheel, pushing the rear group steering. The rear group steering angle signal controls the front group steering to achieve figure-eight and diagonal driving.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pure electric double-head concrete mixer truck, characterized in that: The vehicle includes a frame, with a front cab and a rear cab located at the upper two ends of the frame, and a pure electric mixing tank installed in the middle of the upper part. The mixing tank is driven by an upper motor, and a steering mechanism and a drive motor for driving the steering mechanism are installed below the frame.

2. The pure electric double-head concrete mixer truck according to claim 1, characterized in that: The steering mechanism includes a steering axle, which is divided into two groups, front and rear, connected to both ends of the bottom surface of the vehicle frame. Each group has two axles, namely a drive steering axle and a driven steering axle. The drive motor drives the two groups of drive steering axles through a transfer case.

3. A pure electric double-head concrete mixer truck according to claim 2, characterized in that: A tie rod is hinged to the steering knuckle of the drive steering axle and the driven steering axle respectively. The other end of the tie rod is hinged to the steering arm. The steering arm is rotatably mounted on the frame through the steering arm pin seat. The two steering arms are connected by the tie rod. Steering cylinders are installed on both the drive steering axle and the driven steering axle. The steering cylinders are hinged to the steering knuckles at both ends through the tie rod.

4. A pure electric double-head concrete mixer truck according to claim 3, characterized in that: The steering cylinder has a single-piston, double-piston rod structure. The cylinder barrel is fixed on the steering axle, and the piston rod is hinged to the side steering knuckle arms at both ends of the steering knuckle via a tie rod.

5. A pure electric double-head concrete mixer truck according to claim 1, characterized in that: The steering mechanism also includes a centering cylinder, one end of which is mounted on a cylinder support on the vehicle frame, and the other end is hinged to a steering arm between the drive steering axle and the driven steering axle.

6. A pure electric double-head concrete mixer truck according to claim 1, characterized in that: The motor in the upper part drives the mixing tank to rotate through a reducer to achieve agitation and unloading.

7. A pure electric double-head concrete mixer truck according to claim 1, characterized in that: The vehicle frame is equipped with an electrical control box and a hydraulic station, located on one side of the front cab. The electrical control system in the electrical control box is connected to the drive motor and the superstructure motor via wiring, and the hydraulic station is connected to the steering cylinder and the centering cylinder via pipelines.

8. A pure electric double-head concrete mixer truck according to claim 1, characterized in that: A battery box is also installed under the vehicle frame, and the battery box contains a power battery that is connected to the drive motor and the superstructure motor.

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