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Tensioned locking nut

A technology of anti-loosening nuts and nuts, which is applied in the direction of nuts, screws, bolts, etc., can solve the problems of poor anti-loosening effect, time-consuming and laborious, inconvenient disassembly and assembly, and achieve the effect of reliable anti-loosening, simple use, and convenient disassembly and assembly

Inactive Publication Date: 2019-11-01
郑州海富机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the use of bolts, methods such as double nuts, spring washers, thread locking glue, cotter pins, slotted nuts, and stop washers are generally used to prevent bolts and nuts from loosening. The existing methods have poor anti-loosening effects and are time-consuming and laborious. , high cost or inconvenient assembly and disassembly

Method used

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  • Tensioned locking nut

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] Make the convex nut 4 rotate on the screw rod 1, (apply suitable pre-tightening force) to press the workpiece 1 and the workpiece 2 together; screw the sleeve nut 3 on the convex nut 4; screw the convex nut 2 into the sleeve nut 3 , and then (applying a suitable pre-tightening force) make the convex nut 2, the convex nut 4 and the sleeve nut 3 tense; like this, the convex nut 2 and the convex nut 4 are mutually tightened by the sleeve nut 3 and squeeze the screw rod 1, thereby effectively Prevent the nut assembly from rotating freely on the screw rod 1, and play an anti-loosening effect.

[0015] For the present invention above, on the premise of not departing from the design concept of the present invention, various deformations and improvements made by those skilled in the art to the technical solution of the pr...

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PUM

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Abstract

The invention relates to a tensioned locking nut. The nut is of a three-module structure; convex nuts 2 and 4 at the two ends realize rotary tensioning through a sleeve nut 3 in middle besides of screwing with a screw rod 1; the thread lead of the screwed parts of the convex nuts 2 and 4 at the two ends and the screw rod 1 is equal to the thread lead of the screw rod 1; the thread lead of the screwed parts of the convex nuts 2 and 4 and the sleeve nut 3 in middle is larger than the thread lead of the screw rod 1; the convex nuts 2 and 4 at the two ends can be flexibly rotated on the screw rod1 before rotary tensioning with the sleeve nut 3; and the convex nuts 2 and 4 at the two ends are rotationally tensioned with the sleeve nut 3 to generate central extrusion force on the screw rod 1 tostop free rotation of nut modules relative to the screw rod 1 to achieve a locking effect.

Description

technical field [0001] The invention relates to the connection and anti-loosening of bolts, in particular to tension type anti-loosening nuts. Background technique [0002] Bolt connection is widely used in daily life and industrial production and manufacturing. Loosening of bolts and nuts due to external forces such as vibration and impact will result in reduced equipment reliability, reduced service life, and premature damage. In severe cases, it will cause casualties and other major accidents. Therefore, the reliability of bolted connections, especially the anti-loosening of bolts in key parts, is particularly important. In the use of bolts, methods such as double nuts, spring washers, thread locking glue, cotter pins, slotted nuts, and stop washers are generally used to prevent bolts and nuts from loosening. The existing methods have poor anti-loosening effects and are time-consuming and laborious. , high cost or inconvenient disassembly and assembly. Contents of the ...

Claims

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Application Information

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IPC IPC(8): F16B39/12F16B39/30
CPCF16B39/12F16B39/126F16B39/30
Inventor 傅东有
Owner 郑州海富机电设备有限公司