A transmission shaft dynamic balance calibration support seat

By designing a dynamic balancing calibration support for the drive shaft of a turboshaft engine, the matching problem between the existing support and the drive shaft was solved, enabling safe and rapid calibration and lightweighting of the drive shaft, thus improving work efficiency and safety.

CN224499790UActive Publication Date: 2026-07-14HEFEI ASROCK AERO ENGINE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI ASROCK AERO ENGINE TECH CO LTD
Filing Date
2025-09-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing dynamic balancing machine support base cannot be matched with the small diameter drive shaft of the turboshaft engine, resulting in interference and poor compatibility, which affects the quality and safety of the dynamic balancing calibration of the drive shaft.

Method used

A dynamic balancing calibration support for a drive shaft is designed, comprising a base plate, a support assembly, and a limiting assembly. The support assembly is fixed by bolts, and the limiting assembly consists of a baffle, a baffle base, and limiting bolts. The distance of the limiting bolts can be adjusted to accommodate drive shafts of different lengths, and aluminum alloy material is used to reduce weight.

Benefits of technology

The dynamic balancing calibration of the turboshaft engine drive shaft was achieved, which improved safety and compatibility, shortened installation time, reduced weight, and lowered maintenance costs.

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    Figure CN224499790U_ABST
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Abstract

The utility model discloses a transmission shaft dynamic balance calibration support seat, including bottom plate and support subassembly, the bottom plate passes through bolt fixed dynamic balancing machine, the support subassembly includes support, the support passes through bolt and bottom plate fixed, two support bearings for supporting transmission shaft are installed to the both ends of support respectively, the recess is seted up in the middle part of support, and its front end is seted up a rectangular hole, the rectangular hole extends and penetrates bottom plate, the rectangular hole is used for the belt of dynamic balancing machine to enter, one limit component is arranged at the both sides of bottom plate respectively, is used for guaranteeing the safety of personnel and workpiece when dynamic balance calibration, the transmission shaft of certain type vortex shaft engine can be balanced and calibrated to the present application, simultaneously, through the standard connecting hole of bottom plate and original dynamic balancing machine quick docking, adjustable limit bolt distance is adjusted, is suitable for the fine diameter transmission shaft of different length (180 220mm) of same type, and the replacement installation time is shortened to 10 minutes, and the work efficiency is improved.
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