High-bearing-precision adjustable floating spline comprehensive test bench and test method

Abstract

The invention provides a high-bearing-precision adjustable floating spline comprehensive test bench and a test method. The test bench comprises a loading assembly, a load assembly and a connection support adjusting assembly, wherein mounting heights of the loading assembly and the loading assembly are the same, it is guaranteed that the input and the output of the floating spline pair are kept at the same horizontal height, the outer spline supporting seat and the inner spline supporting seat share the same base, and centering of inner and outer splines is easily guaranteed during machining; a flange connected with the spline pair is matched with a flat key through the boss, the groove and the flat key, coaxiality of the inner spline and the outer spline can be guaranteed, high-precision installation of the spline pair is achieved, and the full-thread bolt is installed on the other side of the flange, so disassembly of the spline pair is facilitated; an angular displacement table is connected with a bearing seat, eccentricity of the spline pair is changed by adjusting the angular displacement table, and the floating amount of the spline pair is changed by rotating a fine thread bolt on the supporting seat; the angular displacement table only plays a role in connection and does not bear loads, and the bearing seat is directly fixed on the supporting seat.

Description

technical field [0001] The invention relates to the technical field of floating spline testing, in particular to a high-bearing precision adjustable floating spline comprehensive test bench and a testing method. Background technique [0002] In the aviation power transmission system, according to the working state, the spline pair can be divided into two types: fixed type and floating type. The two parts of the fixed spline pair are relatively fixed in the axial direction so as to transmit the torque of the two parts. While the floating spline pair transmits torque, it allows one part to have certain angular and axial displacement relative to the other part. Floating splines are widely used due to load-sharing requirements of aerodynamic power transmission systems. The allowable extrusion stress of the floating spline pair is significantly smaller than that of the fixed spline pair. In the actual working process, the aeronautical involute spline pair, under the action of ...

AI Technical Summary

Problems solved by technology

For example, in the patent with application number 201610805212.6, the bearing capacity of the displacement platform is limited, and it cannot withstand the high-frequency vibration of the spline, which limits the bearing capacity of the entire test device; The effect of precision

The patent with application number 201710148016.0 is suitable for measuring the fretting wear of the floating spline pair, but it cannot accurately adjust the floating amount and eccentricity

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