ZQ500 reducer shaft end seal reform practice

ZQ500 2018 - reducer shaft end seal reform practice 08 - 24 for ZQ500 reducer reducer shaft end leakage problems, proposed to the shaft end instead of packing seal skeleton oil seal, has received the good effect. （ 1) Problem analysis ZQ500 reducer used in production is more, a common fault is common in use, the shaft with a transparent cover sealing effect is bad, lubricating oil regularly along the axis high speed and low speed shaft leakage, not only cause environmental pollution, but also caused by poor lubrication gearbox transmission part wear serious, leading to frequent maintenance, affect the stable operation of the equipment. And although magnetic seal installation effect is good, high cost. （ 2) Improvement measures ZQ500 reducer shaft end seal for asbestos packing seal, packing seal friction due to the shaft and packing will be fever, packing seal is easy to wear and use cycle short, often lead to leakage, the transparent cover structure as shown in figure 1. Compared with packing seal, made up of rubber and spring skeleton seal, has a large range of radial runout of the axis of rotation value allows, shaft seal for atmospheric environment, etc. According to the skeleton seal sealing performance is good, use for a long period, and they are in the speed reducer through the structure of the cover in a reasonable manner after modification, to switch to a 50 mm * 85 mm * 12 mm of skeleton oil seal, modified through cover structure as shown in figure 2. （ 3) Effect after inspection through change of packing seal for skeleton oil seal, the sealing effect is good, the axial end of half an year to not leak phenomenon, reduces the maintenance frequency caused by leakage, reduce the maintenance workload and difficulty of maintenance, and greatly reduce the consumption of lubricating oil.