Friction-type anti-loosening structure of underwater clamp connector

Abstract

The invention provides a frictional anti-loosening structure of an underwater clamp connector, which includes a clamping hand, a clamping plate, a clamping rotary block, a threaded rod, a threaded sleeve, a twist joint, a guide plate, and a pressure plate. There is knurling on the contact surface between the hand and the clamp connector, which can increase the friction coefficient between the hand and the bolt. The circumferential and axial movement of the threaded sleeve can ensure the linear movement of the threaded rod; when the threaded sleeve and the threaded rod are rusted and cannot be unscrewed, the remote control robot carries the manipulator to axially pull the threaded rod out from the side of the shell plate pressure plate , where the pressure plate acts as a limiter, which can pull the pressure plate off to ensure that the locking device and the pull-in bolt can be separated; the function of the guide plate is to limit the rotation of the card hand; the twist joint is equipped with an interface combined with a torque wrench, and is carried by ROV The torque wrench realizes the rotation of the threaded rod, thereby providing the pressure to clamp the hand and pull the bolt closer, and finally achieve the purpose of anti-loosening.

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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