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A hexagonal slotted self-locking nut

A self-locking nut, nut body technology, applied in the direction of nuts, screws, bolts, etc., to reduce stress concentration, eliminate installation defects, and improve nut strength

Active Publication Date: 2020-05-12
AEROSPACE PRECISION PROD INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the installation parts of aerospace general equipment and key equipment are often slopes with a certain inclination angle, and conventional self-locking nuts are also difficult to meet the installation requirements of such special parts

Method used

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  • A hexagonal slotted self-locking nut
  • A hexagonal slotted self-locking nut
  • A hexagonal slotted self-locking nut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to better understand the present invention, the present invention will be further described below in conjunction with specific drawings. It should be pointed out that, in the case of no conflict, the features of different embodiments can be combined with each other.

[0023] Hexagonal slotted self-locking nut of the present invention ( Figure 1-6 ), the nut body surrounds the central axis to form a central through hole along the axis, the central through hole is provided with a thread 1, the tail of the nut body is a locking part 2 composed of six hexagonal petals 21, and the hexagonal petals 21 surround The shafts are evenly distributed, and interval grooves 22 are formed between adjacent hexagonal petals 21. The inner surface of the hexagonal petals 21 is provided with the thread 1, and the three-dimensional cross-sectional shape surrounded by the outer peripheral surfaces of the hexagonal petals 21 is similar to a hexagonal shape. The position of the inter...

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PUM

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Abstract

The invention provides a hexagon slotted self-locking nut. An axial central through hole is formed by a nut body around a central axis, the inside of the central through hole is provided with threads,and the tail portion of the nut body is a locking part composed of six hexagonal segments; the hexagonal segments is evenly distributed around the central axis, interval grooves are formed in the positions between every two adjacent hexagonal segments, and the threads are arranged in the inner side surfaces of the hexagonal segments; and a shape of a three-dimensional cross-section surrounded bythe peripheral surfaces of the hexagonal segments resembles a hexagonal shape, the positions of the interval grooves on the cross-section is located at the corners of the hexagonal shape, and the hexagonal segments inclines and tightens from the root to the tip toward the central axis. Further, inwardly directed protrusions are arranged on the middle parts of the hexagonal segments on the cross-section. The hexagon slotted self-locking nut has high cycle circulating locking capacity, high vibration resistance, and strong adaptability to the installation position.

Description

technical field [0001] The invention belongs to the technical field of fastener design and manufacture, and in particular relates to a novel hexagonal slotted self-locking nut. Background technique [0002] Self-locking nuts are often used in the field of mechanical equipment installation, but the self-locking cycle of conventional self-locking nuts is relatively low, usually only 5-15 locking cycles. The vibration resistance is also poor, usually 1500-3000 high-load and low-load vibration cycles. With the development of new equipment in my country's aerospace field, there is an urgent need for a self-locking nut that can provide high-period locking performance and high vibration resistance. In addition, the installation parts of aerospace general equipment and key equipment are often slopes with a certain inclination angle, and conventional self-locking nuts are difficult to meet the installation requirements of such special parts. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B37/00F16B39/282
CPCF16B37/00F16B39/282
Inventor 王燕芳王修保宁广西张晓斌万冰华杨知硕甘美
Owner AEROSPACE PRECISION PROD INC LTD