Pump trucks, also known as concrete pump trucks, use pressure to continuously transport concrete along the pipeline. It consists of a pump body and a conveying pipe. According to the structure, it is divided into piston type, extrusion type and water pressure diaphragm type. The pump body is mounted on the chassis of the car, and then equipped with a telescopic or tortuous cloth boom to form a pump truck.
The concrete pump truck was modified on the chassis of the truck. It is equipped with a motion and power transmission, a pumping and stirring device, a cloth device and other auxiliary devices on the chassis.
The power of the concrete pump truck transmits the power of the engine to the hydraulic pump group or the rear axle through the power transfer box, and the hydraulic pump pushes the piston to drive the concrete pump to work. The concrete is then transported to a certain height and distance using the booms and ducts on the pump truck.
In addition to driving the pump truck, the engine of the concrete pump truck is also used to drive the working device such as the pumping mechanism, the stirring mechanism and the distributing mechanism.
The power of each working device of the concrete pump truck comes from the automobile engine.
When the concrete pump truck is working, the power of the automobile engine is transmitted to the transfer case through the gearbox, and then transferred to the hydraulic pump or the rear axle of the chassis through the transfer case.
When the driver issues an instruction to switch to the pumping position, the pneumatic solenoid valve controls the cylinder on the transfer case to push the fork, and the fork pushes the split gear to switch to the pumping position, while cutting off the power to the rear axle, so that the car is at Parking status. Conversely, switch to the driving position.
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