CN203331767U

CN203331767U - Automobile rear lower swing arm

Info

Publication number: CN203331767U
Application number: CN2013203645184U
Authority: CN
Inventors: 史广才; 石明祥; 印传芬; 董泽
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2013-06-25
Filing date: 2013-06-25
Publication date: 2013-12-11
Anticipated expiration: 2023-06-25

Abstract

The utility model relates to an automobile rear lower swing arm which comprises a rear lower swing arm body. The rear lower swing arm body is a stamping part formed in an impact-molding mode, the right section of the rear lower swing arm body is in a U shape, and the two sides of a U-shaped opening are respectively provided with a flanging. A spring disc is arranged in the middle of the rear lower swing arm body, a buffering limit plate is arranged on the left portion of the rear lower swing arm body, and a protrusion is arranged in the middle of the buffering limit plate. A lining is arranged on the right end potion of the rear lower swing arm body, a reinforcing plate is fixedly connected with the two flangings on the two sides of the U-shaped opening in the right portion of the rear lower swing arm body, and a box-shaped structure with a square section is formed. The automobile rear lower swing arm is high in strength, and can prevent stress concentration and fatigue damage of the end connected with a rear auxiliary automobile frame.

Description

A kind of rear lower swing arms of automobiles

Technical field

The utility model relates to automobile component, is specifically related to a kind of rear lower swing arms of automobiles.

Background technology

Rear lower swing arms of automobiles, for connecting rear brake and Rear secondary frame for vehicle, transmits power and the path of motion of controlling wheel between wheel and Rear secondary frame for vehicle.The structure (referring to Fig. 1, Fig. 2 and Fig. 3) of existing rear lower swing arms of automobiles, comprise rear lower swing arm body 12, the middle part of described rear lower swing arm body 12 is provided with a spring holder 17, left part at described rear lower swing arm body 12 is provided with a buffer limit plate 15, be provided with a project-welding nut 14 on described rear lower swing arm body left part, the left end of described rear lower swing arm body is connected with the steering swivel of rear brake; The section of described rear lower swing arm body 2 right parts is one " U " font, two lining attachment faces 22 up and down of described rear lower swing arm body 2 right parts offer respectively two corresponding mounting holes, the two ends of one lining 13 coordinate with two mounting holes respectively, and the right-hand member of described rear lower swing arm body is connected with Rear secondary frame for vehicle.The quality of the rear lower swing arm of employing veneer moulding is little, and (unsprung weight refers to the non-weight supported by automobile suspension system, as tire, wheel hub, brake etc. to reduce unsprung weight.); But, in wheel bounce and the braking procedure that advances, the end that rear lower swing arm is connected with Rear secondary frame for vehicle is stressed large.And the section of " U " character form structure is subject to twisting resistance when larger at rear lower swing arm, easily stress is concentrated and fatigue damage, has potential safety hazard.In addition, the right alignment of two mounting holes of rear lower swing arm right part is difficult for assurance, and right alignment is poor, affects the assembling of lining.Therefore, need to the structure of rear lower swing arms of automobiles be improved further.

Summary of the invention

The purpose of this utility model is the deficiency existed for prior art, and a kind of rear lower swing arms of automobiles is provided, and not only intensity is high for it, can also prevent the concentrated and fatigue damage of the stress of the end that is connected with Rear secondary frame for vehicle.

The technical solution of the utility model is as follows:

A kind of rear lower swing arms of automobiles, comprise rear lower swing arm body, is that a stamping forming sheet metal component and right part section are " U " shape, and the both sides of " U " shape opening are respectively equipped with flange; Be provided with a spring holder at the middle part of described rear lower swing arm body; Left part at described rear lower swing arm body is provided with a buffer limit plate, and the middle part of this buffer limit plate is provided with projection, and the left end of described rear lower swing arm body is connected with the steering swivel of rear brake; Right part at described rear lower swing arm body is provided with lining; One brace panel is fixedly connected with two flange of described rear lower swing arm body right part " U " shape opening, forms the box type construction that section is " mouth " font, and the right-hand member of described rear lower swing arm body is connected with Rear secondary frame for vehicle.

Further, also comprise a lining outer tube, the outer wall of this lining outer tube and the top of described rear lower swing arm body right-hand member with below be fixedly connected with, described lining is located in this lining outer tube, to facilitate the lining assembling.

Further, be provided with a project-welding nut on described rear lower swing arm body left part.

Further, the middle part of described brace panel is provided with reinforced rib, to improve the intensity of rear lower swing arm body right-hand member.

The utility model can be by having set up a brace panel on the flange at rear lower swing arm body right part, make the section of existing " U " character form structure become the box type construction of " mouth " font, the box type construction of " mouth " font can actv. reduces stress to be concentrated and fatigue damage, has improved the intensity of rear lower swing arm body; Simultaneously the utility model adopt lining outer tube and the top of rear lower swing arm body with below be fixedly connected with by, improved the assembly precision of lining.

The accompanying drawing explanation

Fig. 1 is the prior art structural representation;

Fig. 2 is the A-A cutaway view (section is " U " font) of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is structural representation of the present utility model;

Fig. 5 is the C-C cutaway view (section is " mouth " font) of Fig. 4;

Fig. 6 is the D-D cutaway view of Fig. 4.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Embodiment mono-: referring to a kind of rear lower swing arms of automobiles shown in Fig. 4 to Fig. 6, comprising rear lower swing arm body 2, is that a stamping forming sheet metal component and right part section are " U " shape, and the both sides of " U " shape opening are respectively equipped with flange 21; Be provided with a spring holder 7 at the middle part of described rear lower swing arm body 2, be used for assembling coil spring; Left part at described rear lower swing arm body 2 is provided with a buffer limit plate 1, and the middle part of this buffer limit plate 1 is provided with projection 11; Be provided with lining 3 in the right part of described rear lower swing arm body 2; One brace panel 5 is fixedly connected with two flange 21 of described rear lower swing arm body 2 right parts " U " shape opening, forms the box type construction that section is " mouth " font.Be provided with a project-welding nut 4 on described rear lower swing arm body left part.The middle part of described brace panel 5 is provided with reinforced rib 51.

Embodiment bis-: also comprise a lining outer tube 6, the outer wall of this lining outer tube and the top of described rear lower swing arm body 2 right-hand members with below be fixedly connected with, described lining 3 is located in this lining outer tube.All the other are identical with embodiment mono-.

Referring to Fig. 5, brace panel 5 passes through CO ₂the protection weldering is welded with the flange 21 of rear lower swing arm body 2 right parts; the section that is connected an end with subframe is become the box type construction of " mouth " font by " U " character form structure; actv. has reduced the stress of flange position 21 to be concentrated and fatigue damage, has improved the intensity of rear lower swing arm.

Claims

1. a rear lower swing arms of automobiles, comprise rear lower swing arm body (2), is that a stamping forming sheet metal component and right part section are " U " shape, and the both sides of " U " shape opening are respectively equipped with flange (21); Be provided with a spring holder (7) at the middle part of described rear lower swing arm body (2);

Left part at described rear lower swing arm body (2) is provided with a buffer limit plate (1), and the middle part of this buffer limit plate (1) is provided with projection (11); Be provided with lining (3) in the right part of described rear lower swing arm body (2); It is characterized in that:

One brace panel (5) is fixedly connected with two flange (21) of described rear lower swing arm body (2) right part " U " shape opening, forms the box type construction that section is " mouth " font.

2. a kind of rear lower swing arms of automobiles according to claim 1, it is characterized in that: also comprise a lining outer tube (6), the outer wall of this lining outer tube and the top of described rear lower swing arm body (2) right-hand member with below be fixedly connected with, described lining (3) is located in this lining outer tube.

3. a kind of rear lower swing arms of automobiles according to claim 1 and 2, is characterized in that: on described rear lower swing arm body left part, be provided with a project-welding nut (4).

4. a kind of rear lower swing arms of automobiles according to claim 1 and 2, it is characterized in that: the middle part of described brace panel (5) is provided with reinforced rib (51).