Automotive steering tie rod

A steering tie rod, automobile technology, applied in the direction of steering tie rod, steering mechanism, vehicle parts, etc.

Inactive Publication Date: 2013-08-21
HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defect that the existing automobile steering tie rod threaded connection is prone to hidden bending deformation and accumulates to fatigue fracture, the present invention provides a convenient Automobile Steering Tie Rod for Early Inspection of Bending and Deformation

Method used

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  • Automotive steering tie rod
  • Automotive steering tie rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, an automobile steering tie rod includes a straight rod body 2 and a joint rod 3, one end of the straight rod body 2 is provided with an external thread, and one end of the joint rod 3 is provided with an internal thread, and the straight rod body 2 and the joint rod 3 are connected into one body through threads The other end of the straight rod body 2 is integrally provided with a ball head 4, which is connected with the steering rack of the steering arm, and the other end of the joint rod 3 is hinged with the wheel steering knuckle. The total length of the straight rod body 2 from the ball head 4 to the threaded end surface is 224 mm. The straight rod body 2 includes three parts, the inner section, the middle section and the outer section, which are connected in sequence. There are steps between adjacent sections. The ball head 4 is located on the inner section, and the diameter of the inner section is 13mm. The diameter is 19mm, an...

Embodiment 2

[0019] An automobile steering tie rod, the length of the necking section 1 is 30 mm, the diameter of the necking section 1 is 12.2 mm, the ratio of the length of the necking section 1 to the total length of the straight rod body 2 is about 0.13, and the center of the necking section 1 to The ratio of the distance from the center of the necking section 1 of the straight rod body 2 to the center of the ball head of the straight rod body 2 and the length of the straight rod body 2 is about 0.67. The ratio of mid-section diameters of 2 is about 0.87. All the other are with embodiment 1.

[0020] When the tie rod in this embodiment is irreversibly bent, the bending part is also in the necking section 1. Compared with the prototype steering tie rod without the necking section 1, the pressure resistance is lower, but it is still under normal conditions. The steering function can be performed normally.

Embodiment 3

[0022] An automobile steering tie rod, the length of the necking section 1 is 20 mm, the diameter of the necking section 1 is 12 mm, the ratio of the length of the necking section 1 to the total length of the straight rod body 2 is about 0.09, and the center of the necking section 1 to the straight The ratio of the distance from the center of the necking section 1 of the rod body 2 to the center of the ball head of the straight rod body 2 to the length of the straight rod body 2 is about 0.70. All the other are with embodiment 1.

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Abstract

The invention discloses an automotive steering tie rod which comprises a straight body and a connector rod. One end of the straight body is connected with one end of the connector rod in a threaded manner. The other end of the straight body is connected with a steering rack of a steering arm. The other end of the tie rod is connected with a wheel knuckle. The straight body is provided with a reducing necked segment. A bent deformed part of the steering tie rod is shifted from the hidden position to a visible position through a weakened structure, so that fatigue degree of the steering tie rod during use can be known timely, countermeasures to eliminate potential hazards can be taken timely and severe safety accidents caused by continuous development of the potential hazards is avoided.

Description

technical field [0001] The invention relates to an automobile steering device, more specifically, it relates to an automobile steering tie rod. Background technique [0002] One of the existing steering tie rods of automobiles uses a threaded connection to connect the straight rod body and the joint rod that constitute the steering tie rod. The market often reports that the steering tie rods will break when this type of connection is used. Investigation Later, it was found that the straight rod body of the broken tie rod was obviously bent and deformed near the thread transition at the end, and the fracture showed obvious signs of fatigue fracture. The bending strength of the tie rod is the weakest at the transition from the thread to the rod body, and it is most likely to bend when the steering tie rod is squeezed, but because the bending part is located at the end of the straight rod body, it is close to the joint rod, and the joint rod itself is bent Yes, the bent part i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D7/20
Inventor 李永生门永新韩淼龙杨萍陈勇赵福全
Owner HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST
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