CN213138412U

CN213138412U - Single trailing arm assembly and vehicle

Info

Publication number: CN213138412U
Application number: CN202022264296.1U
Authority: CN
Inventors: 邵佳驼; 卢元甲; 王岩
Original assignee: BAIC Group ORV Co ltd
Current assignee: BAIC Group ORV Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-05-07
Anticipated expiration: 2030-10-13

Abstract

The utility model provides a single trailing arm assembly and vehicle, single trailing arm assembly, include: the single longitudinal arm body comprises a straight arm end and a bent arm end connected with the straight arm end, wherein a bushing installation ring structure is respectively arranged at a first end of the straight arm end, which is far away from the bent arm end, a second end of the straight arm end, which is connected with the bent arm end, and a third end of the bent arm end, which is far away from the straight arm end; a bushing mounted within the bushing mounting ring structure. Through will single trailing arm body design structure as an organic whole can reduce the problem that the fracture became invalid easily appears in the welding area to a certain extent, improves the life of single trailing arm assembly.

Description

Single trailing arm assembly and vehicle

Technical Field

The utility model relates to an automobile manufacturing technical field, in particular to single trailing arm assembly and vehicle.

Background

One end of a single longitudinal arm assembly of the cross-country vehicle is connected with an axle, the other end of the single longitudinal arm assembly is connected with a frame, and the cross-country vehicle has the functions of transmitting force and moment and controlling the movement of wheels and is a key part on a vehicle body.

In the traditional design, the single trailing arm assembly adopts an upper longitudinal pull rod and a lower longitudinal pull rod which are formed by pressing a longitudinal pull rod body and a bushing. The single longitudinal arm body is generally formed by welding a connecting rod and two end round pipes, the connecting rod and the two end round pipes are made of steel pipes, and because the welding areas of the connecting rod and the round pipes are intersecting lines, strict intersecting lines are difficult to achieve in actual production, the width of a welding seam of the welding area is inconsistent, and the welding seam is not welded sufficiently due to the defect that the welding seam is welded deeply. The problem that the welding area of the single trailing arm assembly is easy to crack and lose efficacy due to the bad use condition of the off-road vehicle, and the defects of heavy weight and the like exist because the connecting rod and the round pipe are made of steel. And the bush is a revolution body structure, and has the defect that the rigidity in a single direction cannot be adjusted.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a single trailing arm assembly and vehicle for among the solution prior art, the problem of fracture inefficacy appears easily in the welding region of single trailing arm assembly.

In order to solve the technical problem, an embodiment of the utility model provides a following technical scheme:

the utility model discloses one of them embodiment provides a single trailing arm assembly, a serial communication port, include:

the single longitudinal arm body comprises a straight arm end and a bent arm end connected with the straight arm end, wherein a bushing installation ring structure is respectively arranged at a first end of the straight arm end, which is far away from the bent arm end, a second end of the straight arm end, which is connected with the bent arm end, and a third end of the bent arm end, which is far away from the straight arm end;

a bushing mounted within the bushing mounting ring structure.

Optionally, the single trailing arm body is integrally formed by using an integral forging process.

Optionally, the single trailing arm body is made of an aluminum alloy material.

Optionally, the cross section of the single trailing arm body is of an I-shaped structure.

Optionally, the cross-section of the single trailing arm body gradually increases from the first end to the second end.

Optionally, an inner frame is arranged in the bushing, and a middle protruding portion protruding along the axis of the bushing is arranged on the inner frame.

Optionally, the inner frame is further provided with a middle through hole penetrating through the middle protruding portion and two side through holes symmetrically arranged relative to the middle through hole.

Optionally, the inner frame is made of an aluminum alloy material.

Optionally, the bushing is connected with the bushing mounting ring structure in an interference fit manner.

The embodiment of the utility model provides a still provide a vehicle, including foretell single trailing arm assembly.

The utility model has the advantages that:

the utility model provides a single trailing arm assembly, include: the single longitudinal arm body comprises a straight arm end and a bent arm end connected with the straight arm end, wherein a bushing installation ring structure is respectively arranged at a first end of the straight arm end, which is far away from the bent arm end, a second end of the straight arm end, which is connected with the bent arm end, and a third end of the bent arm end, which is far away from the straight arm end; a bushing mounted within the bushing mounting ring structure. Through designing single trailing arm body structure as an organic whole, can reduce the problem that the fracture became invalid easily appears in welding area to a certain extent, improve the life of single trailing arm assembly.

Drawings

Fig. 1 is a schematic structural diagram of a single trailing arm assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a single trailing arm body according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a single trailing arm body according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a bushing according to an embodiment of the present invention.

Description of reference numerals:

1-single trailing arm body; 2-straight arm end; 3-bending the arm end; 4-installing a ring structure on the bushing; 5-a bushing; 6-inner skeleton; 7-a middle protrusion; 8-a middle through hole; 9-side vias.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses the problem of fracture inefficacy appears easily in the welding area to single trailing arm assembly, a single trailing arm assembly and vehicle is provided.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a single trailing arm assembly, including:

the single longitudinal arm comprises a single longitudinal arm body 1 and a single longitudinal arm body, wherein the single longitudinal arm body comprises a straight arm end 2 and a bent arm end 3 connected with the straight arm end 2, a first end of the straight arm end 2, which is far away from the bent arm end 3, a second end of the straight arm end 2, which is connected with the bent arm end 3, and a third end of the bent arm end 3, which is far away from the straight arm end 2, are respectively provided with a bushing installation ring structure 4;

a bushing 5 mounted within the bushing mounting ring structure 4.

In addition, in the present embodiment, the trailing arm body 1 includes: the straight arm end 2, the bent arm end 3 and the bushing installation ring structure 4 are designed into an integral structure, so that the problem that the welding area of the single longitudinal arm body is prone to cracking and failure is solved to a certain extent, and the service life of the single longitudinal arm assembly is prolonged.

The single longitudinal arm body 1 is integrally formed by adopting an integral forging process.

It should be noted that, the single trailing arm body 1 is integrally formed by adopting an integral forging process, and then is subjected to aging treatment, so that the mechanical property of the single trailing arm body can be improved.

The single longitudinal arm body 1 is made of an aluminum alloy material.

It should be noted that the single trailing arm body 1 is made of a lightweight material, so that the weight of the single trailing arm body 1 is reduced, and the fuel economy can be improved. Preferably, in the present embodiment, the single trailing arm body 1 is made of an aluminum alloy material.

The cross section of the single longitudinal arm body 1 is of an I-shaped structure.

As shown in fig. 3, the cross section of the single trailing arm body 1 has an i-shaped structure, which can improve the safety and reliability of the single trailing arm body 1.

The cross section of the single trailing arm body 1 gradually increases from the first end to the second end.

It should be noted that the section of the single trailing arm body 1 is gradually increased from the first end to the second end, and the structural design can effectively transfer load and ensure strength and rigidity.

An inner framework 6 is arranged in the lining 5, and a middle protruding part 7 protruding along the axis of the lining is arranged on the inner framework 6.

The inner framework 6 is also provided with a middle through hole 8 which penetrates through the middle protruding part 7 and two side through holes 9 which are symmetrically arranged relative to the middle through hole 8.

It should be noted that, as shown in fig. 4, the bushing 5 is a revolving body structure, and by designing two side through holes 9 and the relative positions of the two side through holes 9, the rigidity in a certain direction can be adjusted, and the vibration filtering capability of the bushing 5 is improved.

The inner frame 6 is made of an aluminum alloy material.

The inner frame 6 is made of a lightweight material, so that the weight of the liner 5 is reduced, and the fuel economy can be improved. Preferably, in the present embodiment, the inner frame 6 is made of an aluminum alloy material.

The bushing 5 is connected with the bushing mounting ring structure 4 in an interference fit manner.

It should be noted that the single trailing arm body 1 is manufactured by adopting an integral forging process, and after the through hole is designed on the inner framework 6 of the bushing 5, the bushing 5 and the bushing mounting ring structure 4 are pressed together in an interference fit manner.

The vehicle provided with the single trailing arm assembly can reduce the problem that the welding area of the single trailing arm assembly is easy to crack and lose efficacy to a certain extent, reduce the weight of the single trailing arm assembly, improve the fuel economy, and adjust the rigidity in a certain direction and improve the vibration filtering capacity of the bushing by designing the through hole on the inner framework of the bushing.

The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims

1. A single trailing arm assembly, comprising:

the single longitudinal arm body (1) comprises a straight arm end (2) and a bent arm end (3) connected with the straight arm end (2), wherein a first end of the straight arm end (2) far away from the bent arm end (3), a second end of the straight arm end (2) connected with the bent arm end (3), and a third end of the bent arm end (3) far away from the straight arm end (2) are respectively provided with a bushing installation ring structure (4);

a bushing (5) mounted within the bushing mounting ring structure (4).

2. The single trailing arm assembly according to claim 1 wherein the single trailing arm body (1) is integrally formed using a one-piece forging process.

3. The single trailing arm assembly according to claim 1 wherein the single trailing arm body (1) is made of an aluminum alloy material.

4. The single trailing arm assembly according to claim 1 wherein the cross-section of the single trailing arm body (1) is an i-shaped structure.

5. The single trailing arm assembly according to claim 1 wherein the cross-section of the single trailing arm body (1) increases gradually from the first end to the second end.

6. Single trailing arm assembly according to claim 1 wherein an inner frame (6) is provided within the liner (5), the inner frame (6) being provided with an intermediate projection (7) projecting along the liner axis.

7. Single trailing arm assembly according to claim 6 wherein the inner frame (6) is further provided with a central through hole (8) passing through the central protrusion (7) and two side through holes (9) symmetrically arranged with respect to the central through hole (8).

8. Single trailing arm assembly according to claim 6, characterised in that the inner frame (6) is made of an aluminium alloy material.

9. The single trailing arm assembly according to claim 1 wherein the bushing (5) is connected with the bushing mounting ring structure (4) in an interference fit.

10. A vehicle comprising a single trailing arm assembly according to any one of claims 1 to 9.