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Nut rotation type ball screw pair with anti-loosening device

A ball screw pair, nut rotation technology, applied in the direction of transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of falling off, low reliability, loose locking device, etc., to reduce the possibility of looseness performance, improve reliability

Inactive Publication Date: 2015-11-18
NANJING TECHN EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual use process, due to manufacturing errors and assembly errors, the actual locking force may be much smaller than the theoretical locking force, resulting in the locking device may loosen or even fall off, so the reliability of the original design is not high

Method used

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  • Nut rotation type ball screw pair with anti-loosening device

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Comparison scheme
Effect test

Embodiment Construction

[0011] A nut rotating ball screw pair with an anti-loosening device, comprising a ball screw 1, a ball nut pair 2, a housing 3 containing rolling bearings and a nut sleeve 7, the ball nut pair and the nut sleeve are set on the ball screw and Connect with the shell. A lock nut 4 is arranged outside the nut sleeve, and an inner end of the lock nut is connected to the end of the housing, and a stop washer 5 and a circlip 6 are arranged at the other end of the lock nut. The lock nut, the stop washer and the elastic circlip are all sleeved on the nut sleeve. The elastic circlip is arranged on the outside of the stop washer.

[0012] When working, the ball screw is fixed in place. The power source drives the ball nut pair to rotate and move linearly along the raceway. The nut sleeve is installed on the ball nut pair, and the ball nut pair is regarded as one, and the housing (including the rolling bearing) is installed outside it. The housing is driven by the ball nut pair to mov...

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PUM

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Abstract

The invention discloses a nut rotation type ball screw pair with an anti-loosening device. The nut rotation type ball screw pair comprises a ball screw, a ball nut pair, a shell containing a rolling bearing, and a nut sleeve. The ball nut pair and the sleeve nut are arranged on the ball screw in a sleeving manner and connected with the shell. A locking nut is arranged on the outer side of the nut sleeve. One end of the locking nut is connected with the end of the shell. The other end of the locking nut is provided with a stop gasket and an elastic check ring. The possibility that a traditional nut rotation type ball lead screw pair locking device gets loose is reduced to the maximum extent, and the reliability of the nut rotation type ball screw pair is greatly improved.

Description

technical field [0001] The invention relates to a ball screw pair, in particular to a nut rotation type ball screw pair with an anti-loosening device. The invention minimizes the possibility of loosening of the locking device of the traditional nut-rotating ball screw pair, and greatly improves the reliability of the nut-rotating ball screw pair. Background technique [0002] At present, the locking effect of the nut rotating type ball screw pair locking device mainly depends on the end surface friction guarantee of the lock nut itself. However, in the actual use process, due to manufacturing errors and assembly errors, the actual locking force may be far less than the theoretical locking force, resulting in the locking device may loosen or even fall off, so the reliability of the original design is not high. Contents of the invention [0003] In order to overcome the problems existing in the prior art, the object of the present invention is to provide a nut rotating ball...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/22
CPCF16H25/20
Inventor 冯宇陶明明丁改改黄育全
Owner NANJING TECHN EQUIP MFG
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