Novel locking fastener

A new type of technology for loose fasteners, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., can solve problems such as looseness, low reliability of nut pads, and difficulty in processing, so as to prevent loosening of threads, Good use effect, effect of inhibiting loosening

Active Publication Date: 2012-09-05
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many existing anti-loosening technologies for nuts, but the anti-loosening of large nuts used in places with high strength, large loads and repeated shocks is still a key technical problem
Several existing anti-loosening methods, such as the use of large round nuts and nut washers, are difficult to process, and the reliability of the nut washers is not high under repeated high-strength impact loads; the method of double nuts and internal thread locking screws It is also prone to loosening under the action of large axial force

Method used

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  • Novel locking fastener
  • Novel locking fastener

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: A novel anti-loosening fastener, it comprises that it comprises screw mandrel 1, nut 3, gland 5, locking screw 6, adjusting gasket 4, it is characterized in that: when nut 3 wants to loosen due to long-term vibration impact When disengaged, the screw 1 does not move, the nut 3 rotates, the end surface of the nut 3 and the gland 5 are rigidly connected by the locking screw 6, and the head of the gland 5 is screwed into the screw 1 due to the thread of another direction of rotation. The movement trends of the two threads are different, thereby completely suppressing the loosening of the nut 4 . The invention is applied in a straightening machine system, and avoids the loosening of threads caused by long-term repeated vibration and impact.

Embodiment 2

[0020] Embodiment 2: It is basically the same as Embodiment 1, except that the nut 3 itself adopts an inner locking screw, thereby further restraining the loosening of the thread.

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Abstract

The invention belongs to metallurgical equipment fasteners, and particularly relates to a novel locking fastener applicable to a straightener system. The novel locking fastener at least comprises a screw rod (1) and a nut (3), and is characterized in that when the screw rod (1) and the nut (3) are screwed together, the bottom end of the nut (3) is fixedly connected with a pressure cover (5) through a locking screw (6), and the head of the pressure cover (5) is screwed in the screw rod (1) in a threaded way. The novel locking fastener has the advantages of being good in locking effect and easy to process and implement, and ensuring that a user can easily observe whether the thread is loosened.

Description

technical field [0001] The invention belongs to metallurgical equipment fasteners, and is particularly suitable for a novel anti-loosening fastener used in straightening machine systems. Background technique [0002] There are many kinds of existing anti-loosening technologies for nuts, but the anti-loosening of large nuts used in places with high strength, large loads and repeated shocks is still a key technical problem. Several existing anti-loosening methods, such as the use of large round nuts and nut washers, are difficult to process, and the reliability of the nut washers is not high under repeated high-strength impact loads; the method of double nuts and internal thread locking screws It is also prone to loosening under the action of a large axial force. Contents of the invention [0003] The purpose of the present invention is to provide a new type of anti-loosening fastener, which has good anti-loosening effect, is easy to process and implement, and is easy to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/08
Inventor 周文浩赵西韩马强刘磊王仕杰陈灿李勤勇
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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