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Special combined front suspension for large-scale bus

A composite, front suspension technology, applied in the direction of suspension, elastic suspension, vehicle components, etc., can solve the problems of poor ride comfort, difficulty in popularization, high rigidity, etc., to achieve high-frequency vibration isolation and good ride comfort sex, light weight effect

Inactive Publication Date: 2009-08-12
ZHONGTONG BUS HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the traditional leaf spring suspension also has many advantages such as accurate positioning of the front axle, not easy to shift, and easy adjustment. The biggest defect of the leaf spring suspension is that as an elastic element, it has high rigidity, is not soft, and has poor ride comfort. The height of the vehicle varies with the load. change etc.
It is difficult to popularize and promote, and there is an urgent need

Method used

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  • Special combined front suspension for large-scale bus
  • Special combined front suspension for large-scale bus

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention will be described in further detail with 12 meters of two-step bus prototype examples.

[0026] Such as figure 1 , figure 2 As shown, the guide leaf spring 1 is respectively provided with an air spring airbag 3 , an air spring airbag support 17 , a shock absorber 3 and a lateral stabilizing torsion bar 4 .

[0027] Guide leaf spring 1 is made up of the main piece that the leaf spring of identical front axle load-carrying capacity hangs and the hook piece of the main piece that plays insurance role, and two leaf springs up and down are jointly used as guide element.

[0028] The two ends of the main piece of the guide leaf spring 1 are provided with leaf spring supports 5 respectively, and the polyurethane backing plates 6 and the bottom frame support back plate 7 are arranged on the top of the leaf spring support 5 in sequence, and the center of the bottom frame support back plate 7 is provided with...

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Abstract

The invention relates to a composite front suspension special for a large coach, comprising a guide leaf spring; the guide leaf spring is respectively provided with an air spring sac and a bracket, a damper and a lateral stability torsion bar. The invention maintains the original good performance of the air spring, thereby overcoming the acute shortcomings of the air spring front suspension guided by multiple connecting bars; and the invention has simple structure, accurate front axle positioning, safety and reliability, light self-weight and low cost.

Description

technical field [0001] The invention relates to a front suspension for a vehicle, in particular to a composite front suspension specially used for a large passenger car in which a leaf spring is used as a guide element and an air spring is carried. Background technique [0002] The air spring front suspension specially used for buses, European high-end buses all adopt the air spring independent front suspension with transverse four-links invented by German Neoplan in the early years. The group produces it in batches and provides it as an independent assembly product to various places, but the price is high, and only a small number of high-end buses are used in China. [0003] At present, the most widely used air suspension in China is the North American system and the common air suspension for heavy-duty trucks. It is composed of the air spring front suspension guided by the longitudinal four-link of the I-beam front axle, and the four-link rear suspension guided by the four...

Claims

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Application Information

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IPC IPC(8): B60G11/46
Inventor 罗高华李冀荣高振波郭婷霞路斌郭洪强孙海强
Owner ZHONGTONG BUS HLDG
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