Talking about the disassembly and assembly method of gear oil pump
A gear pump is a type of positive displacement pump. It consists of two gears, a pump body, and a front and rear cover. When the gear rotates, the volume of the space on the disengagement side of the gear changes from small to large. The volume of the space on the engaging side changes from large to small, and the liquid is squeezed into the pipeline.The suction chamber and the discharge chamber are separated by the meshing line of the two gears.The pressure at the outlet of a gear pump depends entirely on the resistance at the pump outlet.When the gear pump works, the driving wheel rotates with the motor and drives the driven wheel to rotate.The pump body is equipped with a safety valve. When the discharge pressure exceeds the prescribed pressure, the transported liquid can automatically open the safety valve to return the high-pressure liquid to the suction pipe. 1. Remove the gear oil pump from the original platform: During maintenance, the pump can be removed from the pump table or the pump can be disassembled without moving the pump and connecting pipeline by removing the intermediate coupling. 2. If necessary, remove the safety valve: If a safety valve is installed on the gear oil pump, loosen the bolt connecting the safety valve to the pump cover or pump body, and then the safety valve can be removed. 3. Remove the rear cover of the gear oil pump: 1. If there is a safety valve on the back cover.The back cover can be removed integrally with the safety valve; 2. Before removing the rear cover, make a mark on the relative position of the pump cover and the pump body, remove the rear cover bolts, and remove the rear cover.Note: When the back cover of the pump is removed, the driven gear is usually connected to the gear pumping. The back cover should be avoided to prevent the driven gear from falling down and causing personal injury or gear damage. 4. Removal of the back cover gasket When there is no new gasket and the old gasket is not damaged, the old gasket can still be used.