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Lock nut and lock method of elastic lock nut for brake disc

A technology for anti-loosening nuts and brake discs, which is applied in the direction of nuts, screws, bolts, etc., which can solve the problems of limited application range, low installation efficiency, and limited anti-loosening degree, and achieves obvious anti-loosening effect, easy operation and extended life Effect

Pending Publication Date: 2017-08-29
株洲中车轨道交通装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention proposes an elastic anti-loosening nut for brake discs with simple structure, convenient use and high installation efficiency in order to solve the problems of limited anti-loosening degree, complex structure, low installation efficiency and limited application range provided by current lock nuts. Anti-loosening method and anti-loosening nut

Method used

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  • Lock nut and lock method of elastic lock nut for brake disc
  • Lock nut and lock method of elastic lock nut for brake disc
  • Lock nut and lock method of elastic lock nut for brake disc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like Figure 1-Figure 3As shown, the structure of the elastic anti-loosening nut in the present invention includes a nut body 1, an anti-loosening ring 3 and a connecting block 2, and two connecting blocks 2 are arranged radially symmetrically along the upper end surface of the nut body 1; the anti-loosening ring 3 is located at Above the nut body 1, the anti-loosening ring 3 and the nut body 1 are connected into a whole through two connecting blocks 2. The anti-loosening ring 3 is centered on the connection with the two connecting blocks 2, and the two sides are inclined downward to form a direction toward the nut body. Two hypotenuses 31 in direction 1; nut body 1, connection block 2, and anti-loosening ring 3 are all provided with thread 4, the pitch of thread 4 on connection block 2 is the same as that of thread 4 on nut body 1, and the anti-loosening ring 3. The pitch of the thread 4 at the connection part 32 of the connecting block 2 is the same as the pitch of th...

specific Embodiment 2

[0048] The difference between this embodiment and the first embodiment is as follows: the pitch of the thread 4 at the midpoint of the two hypotenuses 31 of the anti-loosening ring 3 is inclined toward the direction of the nut body 1, and the pitch of the thread 4 is 0.68 times that of the thread 4 of the nut body 1.

[0049] The height of anti-loosening ring 3 is 1.5 times of thread pitch.

[0050] The two radial faces between the anti-loosening ring 3 and the nut body 1 on both sides of each connecting block 2 are planes, and the joints between the two ends of the plane and the anti-loosening ring 3 and the nut body 1 are rounded, like Figure 4 shown.

[0051] The height of the connection block is 1.1 times the pitch.

specific Embodiment 3

[0052] The difference between this embodiment and the above-mentioned embodiment is as follows: the pitch of the thread 4 at the midpoint of the two hypotenuses 31 of the anti-loosening ring 3 is inclined toward the direction of the nut body 1, and the pitch of the thread 4 is 0.72 times of the pitch of the thread 4 of the nut body 1 .

[0053] The height of anti-loosening ring 3 is 1 times pitch.

[0054] The two radial surfaces between the anti-loosening ring 3 and the nut body 1 on both sides of each connecting block 2 are planes, and chamfers are provided at the joints between the two ends of the plane and the anti-loosening ring 3 and the nut body 1, like Figure 5 shown.

[0055] The height of the connection block is 1.2 times the pitch.

[0056] The above-mentioned embodiment also relates to a method for preventing loosening of the elastic locking nut used for the brake disc. An anti-loosening ring is arranged on the upper end of the nut body, and the anti-loosening r...

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Abstract

The invention discloses a lock nut and a lock method of an elastic lock nut for a brake disc. A lock ring is arranged at the upper end of a nut body and connected with the nut body through two connection blocks which are radially and symmetrically arranged along the upper end of the nut body, the lock ring, the connection blocks and the nut body are all provided with internal threads, and the lock ring and the nut body are different in thread pitch. Since the lock ring is provided with the internal thread different from that of the nut body in thread pitch, after the elastic lock nut is locked to a bolt, zero-clearance close fit between the bolt and the whole elastic lock nut formed by the nut body and the lock ring which are different in thread pitch can be realized under elastic deformation of the lock ring, and looseness caused by relative movement between the elastic lock nut and the bolt is avoided. By changing of the thread pitch, looseness prevention is realized, and easiness in operation, evident locking effects and long service life are achieved. In addition, the lock nut is simple in structure and suitable for mechanical batch production.

Description

technical field [0001] The invention relates to a method for preventing loosening of a locknut and a locknut, in particular to a method for preventing loosening of an elastic locknut for a brake disc and a locknut, and belongs to the technical field of fasteners. Background technique [0002] In rail locomotives, the disc brake technology is generally used to replace the original tread brake, and the disc brake can be divided into two types: wheel disc and axle disc. The wheel brake is to fix the brake disc on the On the wheel, with the rotation of the wheel, the end plane of the brake disc and the brake pad form a fixed friction pair, and the kinetic energy is converted into heat energy through friction, so that the driving vehicle is forcibly decelerated or even stopped, or the stopped vehicle is stabilized. Vehicles, or keep the speed of vehicles running downhill stable, which is directly related to the safety of vehicle operation. Therefore, as a key component in the op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B37/00F16B39/24
CPCF16B37/00F16B39/24
Inventor 江国固
Owner 株洲中车轨道交通装备有限公司
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