An assembly for protecting and removing high-speed input and output shafts

Abstract

The invention provides an assembly used for protecting and dismounting a high-speed input shaft and an output shaft. The assembly comprises a hollow protective jacket, a special nut, O-shaped rings and anti-loosening bolts, wherein fastening screw holes are uniformly formed in the surface of the hollow protective jacket in the radial direction of the hollow protective jacket; the special nut is connected with outer threads of the hollow protective jacket; a ring of grooves is formed at the inner side of the bottom of the special nut; a ring of inward step surfaces is arranged at the outer side of the top of the special nut; the O-shaped rings are arranged in the grooves in a matched mode; and the anti-loosening bolts are connected in the fastening screw holes in a screw-thread fit mode. According to the assembly, shaft neck abrasion loss of a high-speed shaft can be reduced, the service life of the high-speed shaft is prolonged, and an oil leakage phenomenon is avoided; the dismounting of the assembly is convenient and the cost is low; and the current high-speed shaft can be mounted on the high-speed shaft neck by only needing to change the inner diameter and the bearing inner diameter of framework oil seal.

Description

technical field [0001] The invention belongs to the technical field of high-speed shaft protection, and in particular relates to a protection device for journals of high-speed input shafts and output shafts in various reduction boxes. Background technique [0002] At this stage, various enterprises mostly use electric motors to drive various types of gearboxes to achieve a predetermined transmission ratio, and use the transmission shaft to transmit power to the equipment to achieve a certain speed. Some of the high-speed input shafts and output shafts of various types of gearboxes are outside the box body, and will gradually lose their functional accuracy under the influence of air, water and corrosive media. There is also a part that is protected by lubricating grease inside the box, but the journal is severely worn when disassembling and assembling the bearing. After a period of use, the oil seal at the journal is damaged and leaks oil, or the journal is worn out by the oi...

AI Technical Summary

Problems solved by technology

However, the outer circle of the journal wears quickly, the replacement cost is high, the adjustment time of the bearing clearance is long, the maintenance is inconvenient, and the production time is delayed

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