CN201856593U

CN201856593U - Swing arm for vehicle suspension

Info

Publication number: CN201856593U
Application number: CN201020160114XU
Authority: CN
Inventors: 吴宪; 朱卫; 张振宇; 李国华; 邵杰; 张松峰
Original assignee: Wuxi Tongjie Auto Design Co Ltd
Current assignee: Wuxi Tongjie Auto Design Co Ltd
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2011-06-08
Anticipated expiration: 2020-04-15

Abstract

Provided is a swing arm for vehicle suspension, comprising at least three supporting members that are a first supporting member (3), a second supporting member (4), and a third supporting member (5), and a double housing connecting piece (7) connecting the supporting members. The double housing connecting piece (7) is formed by the superposing and welding of an upper housing (1) and a lower housing (2) in a vertical direction. The cross section of at least a part of the double housing connecting piece (7) is U-shaped. The swing arm is light in weight, high in strength and low in producing cost.

Description

Be used for the swing arm of vehicle suspension

Technical field

The utility model relates to a kind of swing arm that is used for vehicle suspension, especially goes up lower casing welded type QL.

Background technology

Connect the swing arm of using in wheel steering joint and the subframe etc. at vehicle and generally serve as QL.When this swing arm of design, need to consider a plurality of targets that the some of them target is conflicting, in order to make structure lightweight as much as possible, preferably swing arm is made thin-walled or is used light material, also will guarantee its load-carrying capacity but then.Should be taken into account also in addition to be contained in the car load when running into different loads that the stress that indivedual positions run into is very big and other position stress are very little.

At present, the swing arm of traditional vehicle suspension manufactures foundry goods or Forging Parts with it, causes its weight obviously to increase like this.In order to make weight light as much as possible, component strength is high as much as possible, and makes every effort to make swing arm geometric configuration and the load that is subjected to be complementary, if only improve from manufacturing process, limitation is very big, and when batch producing the manufacturing process complexity, cost is very high.Shell-type is up and down also made in traditional swing arm, but the reinforced rib of going up lower casing is a lot, and this difficulty of processing for Sheet Metal Forming Technology is big, and to the requirement height of mould, manufacturing cost increases.

The utility model content

The technical problems to be solved in the utility model provides a kind of new-type last lower casing welded type QL, its light weight, intensity height, low cost of manufacture.

Be used for the swing arm of vehicle suspension, comprise at least 3 supporting members: first supporting member, second supporting member and the 3rd supporting member, with 1 double type attaching parts that supporting member is linked together, described double type attaching parts is by upper casing and the vertically stacked weld together of lower casing, and the local at least cross-sectional plane of described double type attaching parts is " recessed " font.

Compare traditional foundry goods or press forging structure, traditional reinforced rib has been saved in this swing arm, has reduced the requirement to mould, has alleviated weight, because each parts of attaching parts can adapt with stress better through design.Owing to alleviated weight and saved material, thereby reduced cost.

Further be improved to, " recessed " font groove of double type attaching parts 7 is positioned on the upper casing 1.The wall thickness of described upper casing can further reduce material requested, cost-cutting greater than the wall thickness of lower casing.Described second supporting member, the 3rd supporting member and double type attaching parts weld together.Described first supporting member and and the double type attaching parts be screwed onto together.

As mentioned above, the structure of the swing arm that is made of a plurality of parts should be matched with suffered stress, except suitable selection material, also can mate by the physical dimension of each part, particularly, the wall thickness of each parts and shape adapt with suffered load respectively, adjust the depth that has that it's too late of " recessed " font groove as the load degree that is subjected to according to each several part.

Description of drawings

Describe in detail by accompanying drawing below

Fig. 1 is the block diagram of the swing arm of the utility model embodiment;

Fig. 2 is the birds-eye view of swing arm shown in Figure 1;

Fig. 3 is the upward view of swing arm shown in Figure 1;

Fig. 4 is the left view of swing arm shown in Figure 1;

Fig. 5 is the cross sectional view of swing arm shown in Figure 2 along the A-A line;

Fig. 6 is the cross sectional view of swing arm shown in Figure 2 along the B-B line;

Fig. 7 is the cross sectional view of upper casing 1 shown in Figure 2 along the A-A line;

Fig. 8 is the cross sectional view of upper casing 1 shown in Figure 2 along the B-B line;

Reference numeral:

Upper casing 1, lower casing 2, the first supporting members 3, the second supporting members 4, the three supporting members 5, bolt 6, double type attaching parts 7.

The specific embodiment

Fig. 1 to Fig. 4 has showed a left swing arm that is used for vehicle suspension, this swing arm has three supporting members: first supporting member 3, second supporting member 4, the 3rd supporting member 5, they link together by double type attaching parts 7, second supporting member 4 here and the 3rd supporting member 5 are designed to the sleeve of a through hole respectively, directly be welded on double type attaching parts 7, first supporting member, 3 design balling-up pin forms, and link together by bolt 6 and double type attaching parts 7, second supporting member 4 is basically perpendicular to the main extended surface at double type attaching parts 7 places, and the 3rd supporting member 5 is basic in the main extended surface at double type attaching parts 7 places.Double type attaching parts 7 is by upper casing 1 and the vertically stacked weld together of lower casing 2, and its local at least cross-sectional plane is " recessed " font.

From Fig. 5 to Fig. 8 as can be seen, upper casing 1 becomes " recessed " font with the cross section that lower casing 2 surrounds double type attaching parts 7, " recessed " font groove is positioned on the upper casing 1, and its depth, shape differ, the load degree that is subjected to according to each several part is adjusted recessed dark size, and the life-span of attaching parts 7 just is guaranteed like this.

In addition, come as can be seen from Fig. 5, Fig. 6, the wall thickness of upper casing 1 takes simply to dock Type of Welding greater than the wall thickness of lower house 2 between upper casing 1 and the lower casing 2, can with low costly make.

Claims

1. be used for the swing arm of vehicle suspension, comprise at least 3 supporting members: first supporting member (3), second supporting member (4) and the 3rd supporting member (5), with 1 double type attaching parts (7) that supporting member is linked together, described double type attaching parts (7) is by upper casing (1) and the vertically stacked weld together of lower casing (2), it is characterized in that the local at least cross-sectional plane of described double type attaching parts (7) is " recessed " font.

2. according to the described swing arm that is used for vehicle suspension of claim 1, it is characterized in that " recessed " font groove of described double type attaching parts (7) is positioned on the upper casing (1).

3. according to the described swing arm that is used for vehicle suspension of claim 1, it is characterized in that the wall thickness of described upper casing (1) is greater than the wall thickness of lower casing (2).

4. according to the described swing arm that is used for vehicle suspension of claim 1, it is characterized in that described second supporting member (4), the 3rd supporting member (5) and double type attaching parts (7) weld together.

5. according to the described swing arm that is used for vehicle suspension of claim 1, it is characterized in that described first supporting member (3) and double type attaching parts (7) are screwed onto together.