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Lightweight bus chassis

A lightweight, vehicle underframe technology, applied to vehicle components, substructure, transportation and packaging, etc., can solve the problems of unsuitable lightweight electric buses, unfavorable lightweight design of the whole vehicle, and heavy weight, so as to maintain strength , weight reduction, firm connection effect

Inactive Publication Date: 2016-05-04
东莞三新电动汽车技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the existing double longitudinal beam chassis structure is relatively complex, its own weight is relatively heavy, and its manufacture is complicated, which is not conducive to the lightweight design of the vehicle, especially not suitable for lightweight electric buses

Method used

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  • Lightweight bus chassis
  • Lightweight bus chassis
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1 to Figure 3 As shown, the lightweight bus chassis of the present invention includes a plurality of longitudinal beams used to form the chassis. Among these longitudinal beams, there are front longitudinal beams and rear longitudinal beams connected front and rear, and the front longitudinal beams follow the rear longitudinal beams. The rear longitudinal beams are in the same direction but not collinear. These two longitudinal beams are profile beams. At the front and rear joints, there are two transfer beams connected to the front longitudinal beam and the rear longitudinal beam. The transfer beams are profile beams. Beams, so that the two longitudinal beams and the two transfer beams form a cross-shaped structure at the front and rear connections to realize the front and rear connections; since each transfer beam is connected to the front longitudinal beam and the rear longitudinal beam, Connect the two profile beams in the same direction but not coll...

Embodiment 2

[0038] Such as Figure 4 to Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that there are a plurality of front upper longitudinal beams 21 and a plurality of front upper cross beams 22 arranged above the front part, and the front upper longitudinal beams 21 and front upper cross beams 22 are intersected and connected to form a front The upper substructure layer 400, the front upper substructure layer 400 is connected to the basic structure layer 300 at the front through a plurality of vertical beams; the front upper part of the basic structure layer 300 can effectively improve the front part of the undercarriage by connecting the front upper substructure 400. height and strength.

[0039] There are multiple middle longitudinal beams 23 and middle cross beams 24 arranged in the middle, and a plurality of middle longitudinal beams 23 are respectively arranged in parallel on the inner side and two outer sides of the middle part of the basic structur...

Embodiment 3

[0043] Such as Figure 6 to Figure 7 As shown, the difference between the present embodiment and the second embodiment is that, on the basis of the vehicle underframe described in the second embodiment, the middle and upper longitudinal beams 27 and the middle and upper beams 28 are arranged above the middle of the present embodiment. Longitudinal beams 27 and upper and middle beams 28 are intersected and connected to form an upper and middle substructure layer 700, and the upper and middle substructure layer 700 is connected with the basic structure layer 300 above the middle part through a plurality of vertical beams; adding the upper and middle substructure layer 700 can further strengthen the car. Improve the mechanical properties of the chassis, while reducing the number of steps in the chassis. A plurality of vertical beams are connected between the middle upper substructure layer 700 and the basic structure layer 300, which can further improve the overall rigidity of th...

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PUM

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Abstract

The invention relates to the technical field of automobiles, in particular to a lightweight underframe for a bus. The lightweight underframe comprises a plurality of longitudinal girders for forming a chassis. The longitudinal girders comprise front and rear longitudinal girders which are connected in forward and backward directions. The front and rear longitudinal girders are in the same direction, but are non-collinear. The longitudinal girders are profile girders. Two transition girders connected with the front and rear longitudinal girders are arranged at each forward-backward joint, and are profile girders, so that the longitudinal girders and the two transition girders form a frame-shaped structure at the forward-backward joint to realize forward-backward connection. The longitudinal girders and the transition girders form the frame-shaped structures, so that the lightweight underframe is simple in structure and easy to manufacture and assemble, and the use of excessive additional connecting parts is avoided; each girder has two joints in the vicinity of the frame-shaped structures, so that the lightweight underframe is firm in connection, and the safety is ensured; and compared with the prior art adopting double spatial longitudinal girders, the lightweight underframe adopting the profile girders is easy to connect, the weight of the whole bus is reduced, and the connecting strength is ensured.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a lightweight bus chassis. Background technique [0002] Whether it is a traditional car or a new energy vehicle, the lightweight of the body has become a research hotspot, but for electric vehicles, the significance of lightweight is greater, and the requirements for lightweight are higher. In order to achieve a significant lightweight effect, it is necessary to find new solutions in terms of materials, structures and manufacturing processes. [0003] Most pickup trucks and buses adopt a double longitudinal beam chassis load-bearing structure. A series of installation points are arranged on the longitudinal beams to install chassis components and compartments. Therefore, the two longitudinal beams are not only the installation base, but also the main force-bearing structural parts. Due to the installation of various parts on the chassis of the car, the longitudinal beam has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D21/02
Inventor 宗志坚
Owner 东莞三新电动汽车技术有限公司