柱塞式液压升降泵在使用到一定的时期后,有些零件会产生不同程度的磨损,需要修理。磨损的主要部位有: 1.偏心轴和轴套的磨损: 2.前后压板磨损; 3.柱塞与柱塞孔的磨损; 4.阀门与阀门座磨损: 5.控制滑阀与密封环磨损; 6.安全阀磨损。现将这些零件的修复工艺分述如下。一、偏心轴和轴套 1.凸轮和轴颈磨损当凸轮和轴颈的椭圆度和锥度大于0.04毫米时,应予修理。在磨床上将凸轮和轴 Plunger hydraulic lift pump in use to a certain period of time, some parts will have different degrees of wear and tear, need to be repaired. The main parts wear: 1. eccentric shaft and sleeve wear: 2. before and after the platen wear; 3. Plunger and plunger hole wear; 4. Valve and valve seat wear: 5. Control valve and seal ring wear ; 6. Safety valve wear. The repair process of these parts are as follows. First, the eccentric shaft and sleeve 1. Cam and journal wear When the cam and journal ovality and taper is greater than 0.04 mm, should be repaired. Place the cam and shaft on the grinder