Assembling and disassembling tool for gear shaft round nut

Abstract

The invention relates to an assembling and disassembling tool for a gear shaft round nut. The assembling and disassembling tool comprises a brake clamp and an assembling and disassembling clamp. A positioning shaft 4 of the brake clamp is fixedly installed at one end of a stand column 2 and is provided with an external spline matched with an internal spline of a gear shaft 3. The other end of the stand column 2 is installed on a base 1, and the stand column 2 can extend to the interior of the gear shaft 3 from the bottom. The external spline on the positioning shaft 4 is meshed with the internal spline of the gear shaft 3. A spanner 6 of the assembling and disassembling clamp is matched with the external outline of the round nut 8 and fixedly connected with the round nut 8. A torque multiplier is fixedly installed on a connecting rod 7. The assembling and disassembling tool for the gear shaft round nut is simple in principle, convenient to operate and reliable in use, the round nut can be safely and conveniently locked and disassembled, the round nut is not damaged, and the use reliability of the round nut is ensured.

Description

technical field [0001] The invention relates to a loading and unloading tool, in particular to a loading and unloading tool for gear shaft round nuts. Background technique [0002] In the helicopter reducer, there are some gear shafts with high speed and large axial load, and the reliability of the bearings is better when the round nuts and stop washers are used to lock the bearings. Such as figure 1 As shown, it is a gear shaft structure of a certain helicopter. The gear is fixed on the shaft shoulder through interference fit; there is an internal spline on the top of the gear shaft, and the outer shaft shoulder near the end face is the bearing mating surface, and the other end of the bearing is used The round nut is locked by thread. The structure of the round nut is as figure 2 As shown, the inner surface has threads, which are screwed with the threads at the end of the gear shaft. The round nut has 4 lugs, and there are threaded holes on the lugs to facilitate the pl...

AI Technical Summary

Problems solved by technology

Since the round nut matches the external thread at the end of the gear shaft and requires a large tightening torque for the round nut, a large torque is required when disassembling. Due to the structural limitations of the round nut, it is easy to cause The surface of the round nut is scratched or the round nut is damaged due to uneven torque, which affects the reliability of use, so special tools are required for assembly and disassembly

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