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Underframe of all-aluminum carriage

A technology for carriages and underframes, which is applied to vehicle components, substructures, transportation and packaging, etc., can solve the problems of low welding strength, scattered force, easy failure, etc., and achieves low processing costs, distributed stress and simplified bottom beam Effect

Pending Publication Date: 2020-12-25
ALNAN ALUMINIUM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of low welding strength and easy failure at the aluminum alloy connection node, and makes great contributions to the distribution of the overall force of the carriage, reducing the stress of the connection node, and improving the firmness and reliability of the connection point

Method used

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  • Underframe of all-aluminum carriage
  • Underframe of all-aluminum carriage
  • Underframe of all-aluminum carriage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1~3 As shown, as shown, an underframe of an all-aluminum carriage includes a bottom frame 1, a bottom beam 2 and an auxiliary longitudinal beam 3, the bottom beam 2 and the auxiliary longitudinal beam 3 are cross-connected, and the auxiliary longitudinal beam 3 It is connected with the frame 7 of the vehicle body, and the secondary longitudinal beam 3 is configured as a channel structure provided with openings in the horizontal direction. Bolt 6, the beam double support 4 includes a base 401 arranged in pairs and a slot 402 arranged above the middle of the base 401, the bottom beam 2 is fixed in the slot 402, and the bolts 6 pass through in turn Through the base 401, the upper side of the auxiliary longitudinal beam 3 and the cover pad 5, the bolt 6 and the sleeve pad 5 are screwed and fastened; the connecting structure of the auxiliary longitudinal beam 3 and the vehicle body frame 7 includes Support block 8, U-shaped bolt 9, pressure plate 10 and nut ...

Embodiment 2

[0041] Such as Figure 1~3 As shown, an underframe of an all-aluminum carriage includes a bottom frame 1, a bottom beam 2 and an auxiliary longitudinal beam 3. The bottom frame 1 includes four bottom frame 1 beams connected in a rectangular shape, and each of the bottom beams 2 Both sides of the auxiliary longitudinal beam 3 are connected with the beams of the bottom frame 1 to form the chassis of the carriage.

[0042] Such as figure 2 As shown, the bottom beam 2 and the auxiliary longitudinal beam 3 are cross-connected, the auxiliary longitudinal beam 3 is connected to the vehicle body frame 7, and the auxiliary longitudinal beam 3 is configured as a channel structure provided with openings in the horizontal direction. The connection structure between the bottom beam 2 and the auxiliary longitudinal beam 3 includes a double beam support 4, a sleeve pad 5 and a bolt 6, and the double beam support 4 includes a base 401 arranged in pairs and a plug set above the middle of the...

Embodiment 3

[0053] The difference between this implementation and the above-mentioned embodiment 2 is that a single support is used to connect the bottom frame of the front and rear of the car and the auxiliary longitudinal beam, and the length of the support block 8 along the longitudinal direction of the auxiliary longitudinal beam 3 is 110mm, and it can mainly It is used to avoid the stress concentration problem at the connection node, and avoids the weight increase caused by the too long support block 8 .

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Abstract

The invention provides an underframe of an all-aluminum carriage. The underframe comprises a bottom frame, bottom cross beams and auxiliary longitudinal beams; the bottom cross beam is connected withthe auxiliary longitudinal beams in a crossed mode, the auxiliary longitudinal beams are connected with a crossbeam of a vehicle body, and each auxiliary longitudinal beams is of a groove-shaped structure with a horizontal opening; and cross beam double supports are adopted to connect the bottom cross beams and the auxiliary longitudinal beams, a single support is adopted to connect the vehicle head and tail bottom frame and the auxiliary longitudinal beams, and supporting blocks are adopted to support connecting joints of the auxiliary longitudinal beams. According to the underframe of an all-aluminum carriage, the auxiliary longitudinal beam structure and the bottom cross beams are simplified, the size is small, the weight of a carriage is reduced, simple bolt connection is adopted, theinstallation process is simplified, the bearing capacity is high, the problems that the aluminum alloy is low in welding strength and prone to losing efficacy at the connecting joints are solved, andthe stress on the whole carriage is dispersed, the stress of the connecting joints is reduced, and the firmness and reliability of the connecting joints are improved.

Description

technical field [0001] The invention belongs to the field of aluminum carriages, in particular to an underframe of an all-aluminum carriage. Background technique [0002] In the automotive industry, the lightweight of automobiles has become a global development trend. In the field of trucks, the weight reduction of truck compartments can achieve lightweight, which plays an important role in reducing vehicle energy consumption and increasing rated cargo capacity. Especially for new energy trucks, due to the large mass of the battery itself, the demand for weight reduction in the cabin is even stronger. Aluminum alloy materials have excellent characteristics such as light weight, high strength, high corrosion resistance, not easy to fade, long life, and recyclability. At present, aluminum alloy materials have gradually replaced steel materials in the weight reduction design of truck compartments. [0003] For example, Chinese patent CN 106080806B discloses an underframe of an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/02
CPCB62D21/02
Inventor 尹昌波徐光帅邹甫正孔德俊
Owner ALNAN ALUMINIUM CO LTD
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