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Connection structure and passenger car aluminum alloy framework

A connection structure and connection angle technology, which is applied to the superstructure, the superstructure of the passenger car, and the connection between the subassemblies of the superstructure, can solve the problem of reducing the structural strength of the welded joint, reducing the reliability of the aluminum alloy connection, and being replaceable In order to achieve the effect of good replaceability and maintainability, avoid the loss of structural strength, and realize modularization and platform operation

Active Publication Date: 2019-09-20
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the aluminum alloy skeleton, after the aluminum alloy skeleton is connected by welding technology, the structural strength of the welded joint is greatly reduced, and welding deformation will also occur, which greatly reduces the reliability of the aluminum alloy connection; after the aluminum alloy skeleton is connected by riveting technology, Although the strength of the connection is guaranteed, the connection process is complicated and the cost is high
Regardless of whether the aluminum alloy frame is welded or riveted, when the bus is damaged due to a collision during driving, the damaged aluminum alloy frame will not be disassembled and replaced, and its replaceability and maintainability are poor.

Method used

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  • Connection structure and passenger car aluminum alloy framework
  • Connection structure and passenger car aluminum alloy framework
  • Connection structure and passenger car aluminum alloy framework

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 2a~Figure 5 Shown is a schematic diagram of the "T"-shaped connection structure of the aluminum alloy skeleton, and the connection structure material is an aluminum alloy material. The first profile 1 and the second profile 2 are connected at the joint by two connecting corner blocks 3 (4). The connecting corner block has a first connecting plane and a second connecting plane, the first profile includes a first mounting surface, the second profile includes a second mounting surface, and the first connecting plane It is connected to the first mounting surface of the first profile, and the second connection plane is connected to the second mounting surface of the second profile. Such as Figure 3a As shown, the first connection plane and the second connection plane of the connection corner block are respectively provided with a hole, such as Figure 3b As shown, the first connecting plane and the second connecting plane of the connecting corner block are re...

Embodiment 2

[0035] Such as Figure 6a~8b As shown, the second profile is an aluminum alloy rectangular tube 9, and the first profile and the second profile are connected by a connecting corner block 11 (12). The first profile 1 and the aluminum alloy rectangular tube 9 form a certain angle between 30° and 150°.

[0036] Such as Figure 7a-Figure 7d Shown are two types of connecting corner blocks. The two connecting planes of the connecting corner block 11 (12) are respectively 90° and 135° to match the "L"-shaped connection between the aluminum alloy profile and the rectangular tube. The two connecting planes of the connecting corner block 11 (12) are provided with outer bosses, and one of the outer bosses is provided with an inner concave hole (step hole) to match the flange of the blind rivet nut 10; The boss can be inserted into the groove of the first profile 1 when connecting, and a mounting hole is opened on the outer boss to match the bolting of the fastening bolt 6.

[0037] Such as ...

Embodiment 3

[0040] Such as Figure 9-11 Shown is a schematic diagram of the "bridging" structure of the aluminum alloy skeleton. The first profile is the rear wall cross beam 15 and the vertical beam 14 (18), and the second profile is the top wall bending beam 17 and the side wall bending beam 13. The "bridging" connection structure connects the rear wall cross beam 15 with the top wall curved beam 17 and the rear wall vertical beam 14 (18) and the side wall curved beam 13 through the connecting block 16. The connecting plane of the rear wall cross beam 15 and the rear wall vertical beam 14 (18) forms an angle of 90° with the connecting plane of the top wall and the side wall.

[0041] The two connecting planes of the connecting corner block 16 are provided with outer bosses, and one of the outer bosses is provided with a stepped hole to match the rivet nut 10 on the connecting plane of the rear wall beam 15 or the rear wall vertical beam 18 Flange; The other outer boss can be inserted int...

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PUM

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Abstract

The invention provides a connection structure and a passenger car aluminum alloy framework. The connection structure comprises connection corner blocks, a first sectional material and a second sectional material. Each connection corner block is provided with a first connection plane and a second connection plane. The first sectional material comprises a first installation face. The second sectional material comprises a second installation face. The first connection planes are connected with the first installation face of the first sectional material. The second connection planes are connected with the second installation face of the second sectional material. The first installation face is concaved in the length direction of the first installation face to form a first groove with an opening. The connection structure further comprises a first limiting bolt, a first fastening bolt and a first connection sliding block. The first connection sliding block is arranged in the first groove in a sliding manner. The first limiting bolt penetrates through the first connection sliding block and the first installation face to fix the first connection sliding block into the first groove, and the first fastening bolt sequentially penetrates through the first connection face and the first limiting bolt and is in threaded connection with the first limiting bolt.

Description

Technical field [0001] The application relates to a connecting structure and an aluminum alloy frame of a passenger car. Background technique [0002] With the increasing tension of international energy and the improvement of environmental protection requirements, the lightweight of automobiles has received widespread attention. The most effective measure to achieve lightweight passenger cars is to use aluminum alloy instead of steel in the passenger car frame, which not only can achieve lightweight and reduce fuel consumption, but also has the characteristics of high body strength and good safety performance. [0003] Compared with the steel structure frame, the connection technology of the aluminum alloy frame of the passenger car has a big difference. The traditional steel frame can be directly connected by welding technology. For the aluminum alloy frame, after the aluminum alloy frame is connected by welding technology, the structural strength of the welded joint is greatly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D27/06B62D31/02
CPCB62D27/065B62D31/02
Inventor 左克生张海涛长海博文李震董其鹏秦简王东涛
Owner SUZHOU UNIV