Device and method for testing unscrewing of self-locking nuts of grouped movable supporting plates

Abstract

The invention relates to a device and a method for testing unscrewing of self-locking nuts of grouped movable supporting plates. The device comprises a rigid fixing plate, a convex shoulder loading bolt and a loading nut, wherein more than three through holes are formed in the rigid fixing plate, and each through hole is used for corresponding to a respective self-locking nut mounting position ona self-locking nut bracket. The device further comprises at least two groups of bolt assemblies or at least two fastening bolts. The bolt assemblies are used for penetrating through the correspondingthrough holes in the rigid fixing plate and the corresponding self-locking nuts so as to fix the self-locking nut supports to the rigid fixing plate; and the fastening bolts are used for penetrating through the corresponding through holes in the rigid fixing plate and screwed into the corresponding self-locking nuts. According to the device and the method, the self-locking nut bracket is fixed onthe rigid fixing plate, so that the integral fixation of the self-locking nuts of the grouped movable supporting plates without rivet hole structures is realized, and the unscrewing test of the grouped movable supporting plate self-locking nuts without rivet hole structures and with a plurality of self-locking nuts arranged on the bracket is realized.

Description

technical field [0001] The invention belongs to the technical field of fasteners, and in particular relates to a test device for unscrewing self-locking nuts of grouped floating pallets. Background technique [0002] In the connecting structure of aerospace vehicles, due to the small opening spacing of the connecting structure of the substrate and the limitation of the space position, ordinary self-locking nuts and self-locking nuts such as single-ear, double-ear, and angle-shaped pallets cannot be installed. In order to meet the structural connection requirements, a group of floating pallet self-locking nuts is designed, that is, multiple pallet self-locking nuts are arranged side by side on a bracket. [0003] In the prior art, such as the loading bolt disclosed by the Chinese utility model patent whose authorized announcement number is CN202748185U and the pallet self-locking nut using the loading bolt, when the test device is in use, the bracket of the pallet self-lockin...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a test device for unscrewing self-locking nuts of grouped floating pallets to solve the problem that the test device in the prior art cannot be applied to the structure without rivet holes on the bracket and a plurality of self-locking nuts are arranged side by side on the bracket For the technical problem that the self-locking nuts of the groups of traveling pallets cannot be applied, the present invention also provides a test method for unscrewing the self-locking nuts of the group of traveling pallets

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