Reconstruction of the shaft end seal of the pumping unit reducer Liu Wendong, Zhou Xuewen, Li Guoqiang, Wu Xiaojun Shengli Oilfield Gudao Oil Production Plant, Dongying, Shandong 257231, Shandong Province, a fishing pump reducer shaft often leaks oil, resulting in bearings and gears not available Cooling lubrication reduces the life of the equipment. And the oil production team needs to stop and scrub the oil frequently. The addition of motor oil not only affects the efficiency of crude oil production, but also increases manpower. To this end, we have made technical modifications to the gearbox.
Analysis of oil leakage at the 1 shaft end After unpacking, it was found that the main reason for the oil leakage of the gearbox was that the gearbox was sealed only by the cover seal and the felt. The seal design was relatively simple, and the wear of the seal caused the equipment to run. Oil spill.
2 Solution Add the oil retaining plate to the drive shaft output shaft of the reduction gearbox, reduce the cover to improve the shaft end seal and improve the sealing performance. Reform the bushing and cover of the reduction gearbox to increase the sealing process.
3 Conclusion After the completion of the reduction of the gearbox, the test machine was successful. We have successively rebuilt more than ten sets. After tracking and returning, there was no oil spill and the expected results were achieved.
System and development work.
1 especially into the 630 lathe 2. Pneumatic clamp 3. Combination boring tool 4. Power head 5. The center of the workpiece is adjusted to a straight line to ensure the coaxiality of the left and right bearing holes; 2 to ensure the positioning accuracy, each time the workpiece is clamped The dust shoulders on the workpiece and the special pneumatic clamp positioning surface must be blown clean with an air gun.
5 Application effect The tooling fixture adopting the new scheme has been guaranteed since the production and operation of the tooling, including the roundness of the coaxiality. The product qualification rate can be processed by about 120 on the original working day; the labor intensity of the operator is reduced. At the same time, the conversion of general-purpose equipment into special equipment has been realized, saving 560,000 yuan for the enterprise, and it can form processing capacity in the shortest time, and respond to customer requirements, bringing great economic benefits to the enterprise.
Editor Li Minghui
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