Oil motor Caching principle: when the motor stops rotating, the hydraulic reversing valve of the hydraulic press in the system also enters an inversely proportional position. The inversely proportional function of the hydraulic reversing valve of the hydraulic press in the figure is O, that is, when the motor also has a tendency to rotate due to the inertia torque, the pump nozzle of the motor will instantly cause high pressure (that is, pressure shock during work), which is a high pressure oil, The pressure in its operation exceeds the linearity of the speed control valve. Therefore, according to the overflow function of the speed control valve, the high pressure oil in the oil return hole of the oil motor will be discharged to the oil inlet of the motor according to the speed control valve.

After the oil delivery pipe is turned off, the motor oil inlet cannot make up the oil immediately when the motor rotates, which will lead to suction, while the pressure oil in the oil return hole overflows to the motor oil inlet hole during operation, which can reduce the difficulty of motor suction, and then make up the oil in the oil inlet hole.

Since the oil motor can rotate in two directions Hydraulic motor of scissors truck Two rate regulating valves are set to adjust the cache file control circuit. This working group can watch the film according to part of the audience. Most of the pressure adjustment control circuits use the basic pressure adjustment principle of the speed control valve to complete the pressure adjustment, so it is unnecessary to think that the speed control valve is simple and easy to understand, and its scope of application is very common.

Oil cylinder cache file control circuit

The basic principle of the cache file of the hydraulic cylinder is similar to that of the oil motor. When the hydraulic reversing valve of the system hydraulic press adjusts the speed Low speed high torque hydraulic motor The inertia torque of the liquid hydraulic cylinder for exercise will cause the liquid hydraulic cylinder to generate high pressure in a moment. According to the effect of the pressure regulating valve, the high pressure will be discharged to maintain the reliability of the liquid hydraulic cylinder for exercise.

When the oil cylinder lands, the automobile relay 4 is powered on, and the rod cavity enters the high pressure automobile oil tank, but because Cycloidal hydraulic motor of snow sweeper The moving inertia moment of the oil cylinder promotes the rod cavity to generate high pressure in a moment, and then the high pressure can be released according to the cache file 5.