In order to complete certain required functions Low speed high torque hydraulic motor The composition of components is called hydraulic press circuit. The hydraulic press circuit is a whole composed of the given main purposes and regulations, which is called the hydraulic system. The hydraulic system is generally composed of three parts and auxiliary equipment.

Part of driving force: Hydraulic motor of plate bending machine Hydraulic oil pump - used to convert mechanical kinetic energy into liquid pressure energy; Sometimes the accumulator is also used as an emergency or auxiliary power device.

Operation part: pressure regulating valves of various working pressures, total flows, directions, etc., are used to complete the manipulation of fitness movement speed, directions, interaction forces, etc. of the implementing components, and also to complete overpressure protection, system control, etc.

Part of implementation: oil cylinder Oil motor To convert the working pressure energy of liquid into mechanical kinetic energy.

Auxiliary equipment: pipeline, energy accumulator, filtering device, oil tank, cooling tower, electric heater, barometer, steam flowmeter, etc.

     Operating principle of hydraulic motor The hydraulic system can be divided into two types of system software and closed test system software according to the fluid circulation system method. The characteristics of the open system software: the pump enters the pipeline from the oil tank, and the rear seat returns to the oil tank when the oil is working. The advantages are simple structure, good heat discharge and response standards, and wide application. The defect is that the oil tank has a large volume, and there are many opportunities for gas and oil to touch, which is very easy to penetrate.

The characteristics of the closed test system software: the oil suction and discharge ports of the pump are immediately connected with the oil inlet and outlet ports of the components of the hydraulic press to produce a closed circulation system. In order to better compensate for leakage damage, it is generally necessary to have an auxiliary compensation for the gasoline pump and fuel tank. The advantage of this kind of system software is that the oil tank volume is small, the structure is compact, and there are few opportunities for gas to enter the hydraulic oil. The defect is that the system structure is complex, the standard deviation of heat removal is high, and the filter precision is high, so the application is less