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Locknut

An anti-loosening nut and anti-loosening technology, which is applied in the direction of nuts, screws, bolts, etc., can solve the problems of single anti-loosening structure, unusable, large tightening torque, etc., so as to improve the anti-loosening effect, facilitate installation and maintenance, and improve reliability sexual effect

Inactive Publication Date: 2013-01-16
SANY HEAVY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The anti-loosening structure is single, which cannot meet the reliability requirements under frequent vibrations;
[0005] 2. In order to ensure the anti-loosening effect, the required tightening torque is relatively large, especially in coal mines where the installation and maintenance environment is poor, the number of nuts is large, and the maintenance time is long;
[0006] 3. After the anti-loosening nut is disassembled, it cannot be used again, or the anti-loosening effect cannot be guaranteed after re-use

Method used

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Embodiment Construction

[0040] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0041] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

[0042] figure 1 It is a three-dimensional structure schematic diagram of an embodiment of the locknut according to the present invention.

[0043] Such as figure 1 As shown, the present invention provides ...

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Abstract

The invention provides a locknut which comprises a nut body and a locking structure. The locking structure comprises an elastic ring and a wedge locking structure. The elastic ring is disposed at a first end of the nut body. The wedge locking structure is disposed on the end face of a second end of the nut body. A double-locking structure is used, locking effect of the nut is improved, and reliability of threaded connection is further improved. The locknut needs small tightening torque and can be mounted and dismounted by using common tools such as a common wrench or a pneumatic wrench, and accordingly, mounting and maintenance are more convenient, and the locknut is reusable.

Description

technical field [0001] The invention relates to the technical field of fasteners, and more specifically, to a locknut. Background technique [0002] The threaded connection of some parts of fully mechanized coal mining equipment requires nuts not only to have good anti-loosening performance under heavy load, high impact and vibration environment, easy to maintain and install, but also to be able to adapt to multiple disassembly and installation. While ensuring the reliability of the connection, it must also have a compact structure. The existing anti-loosening means mainly include anti-loosening gaskets, anti-loosening nuts, steel wires connected in series on the nuts, stop washers, double nuts, and the use of Spirax nuts. It is difficult to meet the anti-loosening requirements, and the tightening torque is large, which is extremely inconvenient for maintenance; Spirax nuts have high requirements for bolt thread processing, and they cannot be used after disassembly; the dou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B37/00F16B39/26F16B39/282
Inventor 高国康张鑫李世旭
Owner SANY HEAVY EQUIP
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