1. The hydraulic motor with the same base serial number, there are 3 kinds of design pressure, and the standard pressure is 10, 16, 20MPa, how to choose the right type of specifications that are more suitable for the equipment situation? It is necessary to pay attention to improving the efficiency of the motor, and in the case of small starting torque, low speed ratio and large torque, the important factor that endangers the effective power of the transmission system is pump efficiency. For hydraulics with the same starting torque, reducing the operating pressure of the system can improve the efficiency of the pump. Therefore, the standard pressure should be 10MPa, the actual working pressure should also choose a relatively low specification, the smaller the starting torque, the lower the speed ratio, the lower the working pressure, the more advantageous. On the contrary, for the case of large starting torque and relatively high speed, the important factor that endangers the effective power of the transmission system is mechanical efficiency, so the standard pressure of 16MPa or 20MPa should be selected. Secondly, in the case of low-speed stability standards, it is necessary to pay attention to the larger displacement of the hydraulic motor, the better the low-speed stability, it is also related to the large working pressure, the lower the working pressure, the better the low-speed stability.
2. Row two hydraulic motors of the same different base type, how to choose a reasonable specification? This is related to the application situation and the use period regulations, for short-term gap operation, all maintenance period cumulative working time is short, you can choose the base type serial number relatively small specifications, but for the daily cumulative operation time, the use period and the requirement for a relatively long period of mechanical equipment, should try to use the base type serial number relatively large specifications, if necessary should choose the pressure specifications, but relatively low working pressure environment application, this can significantly improve the service life.
