Durable vacuum oil pumping device

The utility model belongs to the technical field of oil pumping devices, and particularly relates to a durable vacuum oil pumping device. The device comprises a vacuum tank, a vacuumizing device for vacuumizing the vacuum tank, at least one vacuum oil pumping tank communicated with a gas path of the vacuum tank, and an oil liquid storage device communicated with an oil path of the vacuum oil pumping tank, the volume of the vacuum tank is larger than or equal to two times that of the vacuum oil pumping tank. According to the vacuum oil pumping device, the volume of the vacuum tank is larger than or equal to two times of that of the vacuum oil pumping tank, when oil pumping is carried out on a workpiece to be subjected to oil pumping, the vacuum pump is started once to vacuumize the vacuum tank, oil pumping work can be carried out at least twice, the starting and stopping times of the vacuum pump are reduced, and the working efficiency is improved. The situation that in the prior art, a hydraulic pump needs to