Friction type anti-loosening structure of underwater clamp connector

Abstract

The invention provides a friction type anti-loosening structure of an underwater clamp connector. The friction type anti-loosening structure comprises a clamp handle, a clamp handle fixing plate, a clamp handle rotating block, a threaded rod, a threaded sleeve, a torsion joint, a guide plate and a pressing plate. Reticulated knurling is arranged on the contact surfaces of the clamping handle and aclose bolt of the clamp connector, so that the friction coefficient of the clamping handle and the close bolt is increased; a lug is arranged outside the threaded sleeve and capable of limiting the circumferential direction and the axial movement of the threaded sleeve through being assembled and rotated by a certain angle with a shell plate of the connector, so that the linear movement of the threaded rod is ensured; when the threaded sleeve and the threaded rod are rusted and cannot be screwed off, a remote control robot carries a manipulator to axially pull the threaded rod out of one sideof a pressing plate of the shell plate, wherein the pressing plate plays a limiting role, and the pressing plate can be pulled off so that a locking device and the close bolt can be separated; the guide plate is used for limiting the rotation of the clamp handle; and the torsion joint is provided with an interface combined with a torsion wrench, and a ROV carries the torsion wrench to realize therotation of the threaded rod, so that the pressure of the clamp handle and the close bolt is provided, and the anti-loosening purpose is finally realized.

Description

technical field [0001] The invention relates to an anti-loosening structure, in particular to a frictional anti-loosening structure of an underwater clamp connector. Background technique [0002] The three-lobed horizontal clamp connector relies on the bolt to lock the three-lobed clamp. The bolt itself has a certain self-locking ability. In order to prevent vibration from making the self-locking invalid and increase its reliability, the existing thread is due to its The structure has good self-locking performance, and it is a commonly used fastening type anti-loosening and locking structure. However, threaded connections may be subjected to all kinds of variable loads under working conditions, including extremely severe vibration and shock loads. Under the action of fluctuating load, the failure of threaded connection is usually caused by its own loosening and fatigue damage. In general, the anti-vibration loosening life of the threaded connection is much shorter than the...

AI Technical Summary

Problems solved by technology

Common frictional anti-loosening is to use gaskets, self-locking nuts and double nuts to increase friction and prevent loosening. However, due to factors such as friction coefficient and pre-tightening force, its reliability is worse than other methods.

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