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Axle and suspension connecting structure of semi-trailer

A semi-trailer axle and coupling structure technology, applied to the cantilever, suspension, elastic suspension and other directions installed on the pivot, to achieve superior mechanical properties, eliminate stress damage, and prolong fatigue life

Active Publication Date: 2011-02-16
GUANGDONG FUHUA MACHINERY EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an axle suspension connection and fixing structure that fully guarantees the strength of the axle body in view of the technical defects existing in the welding connection of the suspension and the axle in the prior art. The strength of the shaft body, the connection is firm and reliable

Method used

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  • Axle and suspension connecting structure of semi-trailer
  • Axle and suspension connecting structure of semi-trailer
  • Axle and suspension connecting structure of semi-trailer

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

[0021] Air suspension front bracket 1 Shock absorber 2 Leaf spring 3

[0022] U-shaped bolt 4 axle 5 suspension support plate 6

[0023] Gas spring 7 Air suspension rear bracket 8 Positioning slot 9

[0024] Flange 10 Inner convex part 11 Locating pin rod 12

[0025] Now take the air suspension as an example to further illustrate the present invention.

[0026] Such as figure 1 , figure 2 As shown, the air suspension system is composed of the following main components: air suspension front bracket 1, air suspension rear bracket 8, shock absorber 2, leaf spring 3, gas spring 7, suspension support plate 6. The suspension system is an air suspension using a gas spring, and the U-bolt 4 fixes the axle 5 on the suspension support plate 6 to realize the connection between the axle and the suspension. In order to prevent the circ...

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PUM

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Abstract

The invention relates to the technical field of key parts of a semi-trailer and relates to an axle and suspension connecting structure of the semi-trailer. The structure comprises an axle, a suspension system and a connecting piece arranged on an axle body and a suspension bracket of the suspension system; and a positioning structure for preventing the circumferential and axial relative displacement generated by the axle and the suspension bracket is arranged on the matching surface of the axle and the suspension bracket. The structure removes a welding working procedure of the axle body and the suspension bracket, still makes the axle body keep a good strength structure while achieving the firm connection between the axle body and the suspension and avoids the stress damage caused by thewelding; and the axle has superior mechanical performance; compared with the prior welding structure, the fatigue life of the axle is prolonged by more than 20 percent; and the axle has prominent effect.

Description

technical field [0001] The invention relates to a coupling structure of a semitrailer axle and a suspension system. Background technique [0002] The axle of the semi-trailer and the frame of the semi-trailer are firmly connected by the suspension system. At present, leaf spring suspension and air suspension are commonly used, and air suspension can improve the ride comfort and comfort of the car more than leaf spring suspension. , improve the safety of transported goods, and reduce the damage to the road surface, play a role in maintaining the road, and thus gradually get more applications. In today's semi-trailer international market, the connection structure between the suspension and the axle is basically clamped with U-shaped bolts, and then the axle is fixed on the suspension system by welding to achieve the purpose of anti-rotation and preventing axial movement of the axle. . Especially on the air suspension, the connection with the axle of the semi-trailer is basic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G7/00
CPCB60G2204/4306B60G9/003B60G2206/30B60G2202/152
Inventor 吴志强
Owner GUANGDONG FUHUA MACHINERY EQUIP MFG CO LTD
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