External thread self-locking nut vibration test tooling

Abstract

The invention relates to the field of fastener testing, in particular to an external-threaded self-locking nut vibration test tool. The external-threaded self-locking nut vibration test tool comprises a housing, a vibration shaft and a vibration nut, wherein a connecting seat fixedly connected with a vibration machine is arranged on the housing, the vibration shaft is radially and movably assembled in an installing hole formed in the housing and is in clearance fit with the hole wall of the installing hole, an inner folded edge is arranged at the rear end of the vibration nut, the rear end of the vibration nut is matched with the housing in a limiting mode, the vibration shaft is inserted into the vibration nut from front to rear and is matched with the vibration nut through an outer folded edge arranged at the front end of the vibration nut in an anti-fall mode, inner threads for being matched with a tested nut in a threaded mode so as to enable the tested nut to press the vibration shaft are arranged at the front portion of the vibration nut, a blocking part for being matched with the housing in an anti-fall mode is arranged at the rear end of the vibration shaft, and the vibration shaft can vibrate in the radial direction and cannot break away from the housing in the axial direction under the effects of the blocking part and the vibration nut. The external-threaded self-locking nut vibration test tool can be used for looseness prevention performance detection of external-threaded self-locking nuts.

Description

technical field [0001] The invention relates to the field of fastener testing, in particular to a vibration test tool for self-locking nuts with external threads. Background technique [0002] Conventional nuts are all internal threads, and external thread nuts are mainly used for fastening the bearings of aerospace engines, and are widely used in the fields of aviation and aerospace engines. In view of the particularity of its use environment, it is required that the external thread self-locking nut can still be fastened without loosening under the high-frequency vibration generated when the engine is running. This requires that the external thread self-locking nut must be Vibration test is carried out to simulate real high-frequency conditions and test the anti-loosening performance of self-locking nuts with external threads. However, most of the conventional vibration fixtures are only suitable for self-locking nuts with internal threads, and there is currently no test f...

AI Technical Summary

Problems solved by technology

However, most of the conventional vibration fixtures are only suitable for self-locking nuts with internal threads, and there is no test fixture on the market that can be used for vibration tests of self-locking nuts with external threads.

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