延长液压柱塞泵使用寿命的有效方法（An effective method to prolong the service life of hydraulic piston pump）.docVIP

延长液压柱塞泵使用寿命的有效方法（An effective method to prolong the service life of hydraulic piston pump） The volumetric efficiency mainly depends on the efficiency of the hydraulic system of hydraulic pump, when the volume dropped to 72% efficiency, the need to carry out routine maintenance, replacement of bearings and seals of aging, to replace or repair the gap beyond the friction with the deputy, the properties of restored. 1, hydraulic pump: straight axis swashplate pump is divided into two types of pressure supply type, self suction type. The pressure supply type hydraulic pump mostly uses the pressure tank, and also has the hydraulic pump itself to supply the oil pump to supply the pressure oil to the hydraulic pump inlet. The self suction hydraulic pump has a strong self suction capacity, so it does not need external force to supply oil. The hydraulic oil tank with air pressure supply can operate the machine after every time the machine is started, the hydraulic pressure tank can not be used until the air pressure is reached. Such as the lack of hydraulic pressure when the tank as a machine, inside the pump will cause breaking off and slide whip, abnormal wear body will cause the pump return plate and the plate. The use of supplementary oil pump plunger pump, the use of 3000h, the operator shall check the plunger pump 1-2 times a day, check the hydraulic pump running sound is normal. If it is found that the hydraulic cylinder speed down or stuffy car, it should check the repair of the oil pump, check whether the edge of the impeller scraping phenomenon, the internal gear pump clearance is too large. 2, for self absorption plunger pump, hydraulic tank oil shall not be lower than the oil standard limit, to maintain sufficient quantities of hydraulic oil. The higher the cleanliness of hydraulic oil, the longer the service life of hydraulic pump. Part 3, hydraulic pump bearings are the most important bearing, if the bearing clearance, it can not guarantee that the internal fri