Hydraulic press speed control circuit is to adjust and change the speed of the actuator circuit, also known as speed control circuit. Hydraulic press manufacturer A kind of use of liquid static pressure to liquid as the working medium, according to the principle of PASCAL made for the transfer of energy to process metal, plastic, rubber, wood, powder and other products of machinery. Single column hydraulic press is generally composed of the machine (main engine), power system and hydraulic control system. Hydraulic press classification valve hydraulic press, liquid hydraulic press, engineering hydraulic press. Hydraulic press manufacturers follow PASCAL's law when liquids transfer pressure in a closed container. The hydraulic transmission system of four-column hydraulic press is composed of power mechanism, control mechanism, executive mechanism, auxiliary mechanism and working medium. The power mechanism usually adopts the oil pump as the power mechanism, which is generally the product type oil pump. 300t hydraulic press in order to meet the motion speed of the actuator, choose one oil pump or several oil pumps. Gear pump with low pressure (oil pressure less than 2.5MP); Vane pump with medium pressure (oil pressure less than 6.3MP); Piston pump for high pressure (oil pressure less than 32.0MP). It is one of the advantages of hydraulic transmission to realize stepless adjustment of actuator speed.
The throttle speed control loop of hydraulic press is divided into throttle speed control loop and throttle speed control loop according to the different query. According to the installation position of heavy valves, it can be divided into three throttling modes: entry turbulence channel, return turbulence channel and return flow channel. Various throttling speed control circuit by the main pump, flow valve, relief valve and actuator composition, by regulating the flow valve area and flow into the actuator to change the load speed, flow valve is the key function of the circuit.
