Rotary bending fatigue tester of aviation conduit assembly

Abstract

A rotary bending fatigue tester of an aviation conduit assembly is designed for solving technical problems of prior equipment, such as low test precision, low test efficiency and the like. The tester comprises a synchronous belt transmission mechanism, a main shaft mechanism, a main support vertical plate, a deflection adjusting mechanism, a tailstock shaft / pipe installation mechanism, a worktable and a mounting mechanism. The tester distributes power by the synchronous belt transmission mechanism; the main support vertical plate and the tailstock shaft / pipe installation mechanism guarantee coaxial precision in an assembling and locating period via a U-shaped through channel formed on the worktable; the deflection adjusting mechanism uses a shaft inclined hole mounting mode; and the tailstock shaft / pipe installation mechanism uses a detachably changeable design. The rotary bending fatigue tester of the aviation conduit assembly has the following benefits: the transmission mechanism has compact structure, the shaft inclined hole mounting mode in the deflection adjusting mechanism effectively adjusts up a usable pivot angle of a self-aligning bearing; and mobility and detachable design of the tailstock shaft / pipe installation mechanism improve applicability and generality of the equipment. Tests for different strengths of different pipes / shafts can be performed simultaneously on same equipment, so that testing efficiency is improved, and cost and production cycle are both reduced.

Description

Technical field: [0001] The invention relates to a testing device, in particular to a rotating bending fatigue testing machine for an aviation catheter assembly. It belongs to the field of experimental testing equipment. Background technique: [0002] Bending fatigue is the most common form of fatigue failure in most mechanical systems. Therefore, it is necessary to study the bending fatigue characteristics of parts and materials to improve the reliability of the design. The use of rotating bending fatigue testing machine to measure the fatigue life of materials under a certain stress state and draw the S-N curve of material fatigue is the most important tool and means to study the fatigue fracture of materials. At present, domestic rotary bending fatigue testing machines generally have the disadvantages of complex equipment structure, low test accuracy and efficiency, while similar foreign products are relatively expensive and inconvenient to maintain. At the same time, t...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of complex equipment structure, low test accuracy and efficiency, and the relatively expensive price of foreign similar products and inconvenient maintenance, the present invention provides a rotary bending fatigue testing machine for aviation catheter components. It is composed of synchronous belt transmission mechanism, main shaft mechanism, main support vertical plate, deflection adjustment mechanism, tailstock shaft / pipe installation and fixing mechanism, worktable and counting mechanism

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