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Anti-backlash type steering transmission shaft steel ball retainer

A technology for steering transmission shafts and cages, which is applied in the direction of couplings, elastic couplings, mechanical equipment, etc., and can solve problems such as abnormal noise and lack of anti-backlash function, so as to prevent abnormal noise, reduce spline wear, and eliminate gap effect

Pending Publication Date: 2020-12-11
NORTHERN HEAVY IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this structure is that the steel ball cage only fixes the steel balls and has no anti-backlash function. Aft

Method used

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  • Anti-backlash type steering transmission shaft steel ball retainer
  • Anti-backlash type steering transmission shaft steel ball retainer
  • Anti-backlash type steering transmission shaft steel ball retainer

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Embodiment Construction

[0016] Referring to the accompanying drawings, a backlash-removing steel ball cage for a steering transmission shaft includes a ball bowl 1, a steel ball cage 2, a C-shaped opening 3, an eccentric cylinder 4, a cylinder 5, a transmission sleeve 6, and a transmission shaft 7. The steel ball cage 2 is provided with 6 rows of parallel ball bowls 1 for fixing the steel balls, which has a large bearing torque, and three rows of C-shaped openings 3 are arranged at 120° around the steel ball cage 2; the C-shaped openings 3 have a raised shape It is arc-shaped, and the middle of the C-shaped opening 3 is a hollow structure; the C-shaped opening 3 is composed of two eccentric cylinders 4 and 5, forming an elastically deformable arc surface, and the connection between the cylinder 5 and the transmission shaft 7 and the transmission sleeve 6 Fairway interference fit, the circular arc surface and the drive shaft sleeve tightly fit to eliminate radial clearance during work;

[0017] The st...

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Abstract

The invention discloses an anti-backlash type steering transmission shaft steel ball retainer. Six rows of parallel ball bowls used for fixing steel balls are arranged on the steel ball retainer, thebearing torque is large, and three rows of C-shaped openings are formed in the circumference of the steel ball retainer by 120 degrees; bulges of the C-shaped openings are in arc shapes, and the middles of the C-shaped openings are of hollow structures; each C-shaped opening comprises two eccentric cylinders and a cylinder, an elastically-deformable arc surface is formed, the cylinder is in interference fit with ball grooves of a transmission shaft and a transmission shaft sleeve, and the arc surface is in close fit with the transmission shaft sleeve to eliminate a radial gap during working; and the bulges of the C-shaped openings are in the arc shapes and are in interference fit with the ball grooves of the transmission shaft and the transmission shaft sleeve. According to the anti-backlash type steering transmission shaft steel ball retainer, after the steel balls, the shaft and the shaft sleeve are abraded to generate gaps, the radial gaps are eliminated through C-shaped stressing,abnormal sounds are avoided, the six rows of steel balls transmit the torque, the bearing torque is larger and more reliable, and the retainer is excellent in abrasion resistance, high in volume stability and long in service life and is applied to the technical field of automobiles.

Description

technical field [0001] The invention relates to an anti-backlash type steering transmission shaft steel ball cage in the technical field of automobiles, in particular to a steel ball cage suitable for anti-backlash type steering transmission shafts of automobiles. Background technique [0002] At present, the steel ball cage of the existing automobile steering transmission shaft is generally arranged in a cylindrical shape, and several reinforcing ribs are evenly distributed on its surface. There are several ball bowls on each reinforcing rib, which are used to place steel balls. The steering torque is transmitted in the ball path formed by the shaft and bushing. The main disadvantage of this structure is that the steel ball cage only fixes the steel balls and does not have the function of eliminating backlash. After long-term use, there will be gaps between the steel balls, shafts and bushings due to wear and tear, and abnormal noises will occur. Compared with the existing...

Claims

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Application Information

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IPC IPC(8): F16D3/224
CPCF16D3/224F16D2003/22303
Inventor 张晓雷蔡永强刘晓丹陈波李剑
Owner NORTHERN HEAVY IND GRP CO LTD
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