Replace the original Herculen motor For buffer control circuit, we have explained the basic premise of oil motor marking in the column of four column hydraulic machine symbol diagram. Welcome to watch.

When the motor stops rotating, the hydraulic reversing valve of the hydraulic press hydraulic press in the system is pushed into the reverse proportion position. The reverse proportion action of the hydraulic reversing valve of the hydraulic press hydraulic press on the figure is O type, that is, the closed brake plate tube. At this time, the motor has a development prospect of rotation due to the torque formula, Therefore, the oil return port of the motor leads to a momentary high pressure (that is, it leads to pressure destruction). The pressure of this high pressure oil exceeds the linear pressure of the speed control valve. According to the overflow effect of the speed control valve, the high pressure oil at the oil return port of the oil motor is discharged to the oil inlet of the motor according to the speed control valve.

As the brake plate pipe is closed, the lubricating oil at the motor oil inlet can not be made up immediately when the motor is rotating, which will lead to suction. The pressure oil returning to the oil inlet overflows to the motor oil inlet, which can ease the difficulty of motor suction and make up the lubricating oil for the oil inlet.

Because Operating principle of hydraulic motor It can rotate in two directions on both sides, so there are two speed regulating valves in the buffer control circuit. You can watch videos online according to your columns. The control circuit of DC transformer is mostly based on the basic premise of DC transformer of speed regulating valve, so the speed regulating valve is not simple and clear, and its main purpose is quite big.

Buffer control circuit of hydraulic cylinder

The basic premise of the buffer of the hydraulic cylinder is the same as that of the oil motor. When the hydraulic reversing valve of the system hydraulic press hydraulic press changes speed, the torque formula of the hydraulic cylinder movement fitness will cause a momentary high pressure inside the hydraulic cylinder. This high pressure will be released according to the buffer valve to maintain the reliability of the hydraulic cylinder movement fitness.

As shown in the figure, when the hydraulic cylinder lands, the automobile relay 4 is powered on, and high pressure oil is fed into the rod cavity. However, due to the motion fitness torque formula of the hydraulic cylinder, high pressure is generated in the rod cavity at a moment, and this high pressure can be discharged according to the buffer valve 5.