What can we learn from the structure of a trailer concrete pump

The trailer concrete pump is mainly composed of main power system, pump system, hydraulic and electric control system.

(1) the main power system.
The impulsion of concrete trailer pump has two types: diesel engine and electric motor, diesel engine pump’s advantage is well adaptable ability. In some construction sites, the motor power supply can’t satisfy the requirement of high power, because of the power requirements of large displacement concrete pump are general more than 100 kw, the diesel engine can ignore this problem. This is why the customers prefer a diesel engine pump. The advantage of the motor pump is low price and less noise, to the increasing requirements of environmental protection of urban construction, the motor pump is more appropriate.
(2)the pumping system.
This system is the actuator for concrete pump. It is used to transfer the concrete mixing content along the pipeline to the scene of the casting. Under normal circumstances, the pumping condition has two transmission mode of high pressure- small displacement and low pressure- large displacement, the user can according to the concrete conveying height (or distance) and the displacement demands to make right choice. The high pressure and low pressure switch can be made by replace the hose, valve block position, rotation and manual reversing valve, etc., most of the new product development, fully automatic high and low voltage switching technology has been adopted rotating electric control button, high and low voltage switch can be completed fast and convenient in an instant. In addition, new products adopt the technology of automatic output piston, as long as you press a button, and the concrete piston can be returned to the cistern, using this technology can shorten the time of the concrete piston installation, reduce the labor intensity of operators greatly. At the same time, you can withdraw concrete abrasion of piston seal to check for concrete, or for cleaning and maintenance at any necessary time to extend the service life of the piston.
(3) the hydraulic and electric control system.
Hydraulic system has open system and closed system. Open system the advantage of low hydraulic oil temperature and high cleanliness. Closed system with the advantages of small hydraulic tank, compact structure, most of domestic products adopt these two systems. Electric control system is with PLC control generally, some products are equipped with text display and touch button-a good man-machine communication interface. The concrete pump monitor distributed in all parts send signals to PLC controller, PLC controller via text display shows the working state of concrete pump. When it is abnormal, the system protect procedure start immediately, with the protection of the program to protect concrete pump from damage, the text display shows the cause of the problem at the same time, this can be convenient for fault diagnosis and maintenance.