CN219295135U - Torsion beam type suspension for new energy vehicle - Google Patents

Abstract

The utility model discloses a torsion beam type suspension for a new energy vehicle, which comprises a left integrated arm, a right integrated arm and a torsion beam; the left integrated arm is structured as follows: comprises a longitudinal arm, a hinge piece, a flange plate, a shock absorber bracket and a spring bracket, wherein the longitudinal arm adopts a flexible endXiang Gang Sex terminalProgressively smaller in cross-sectionVariable cross-sectionThe structure is that the hinge piece is fixed on the flexible end of the longitudinal arm, the flange plate, the shock absorber bracket and the spring bracket are fixed on the rigid end of the longitudinal arm, and one end of the torsion beam is connected with the longitudinal arm and the spring bracket into a whole; the structure of the right integrated arm is the same as that of the left integrated arm; the described torsionA through groove is arranged on the bottom surface of the force beam along the length direction; the utility model adopts a light and compact design, is suitable for vehicles with multiple types, and is convenient for popularization and application.

Description

Torsion beam type suspension for new energy vehicle

Technical Field

The utility model belongs to the field of torsion beam suspensions for vehicles, and particularly relates to a torsion beam suspension for a new energy vehicle.

Background

In recent years, new energy automobiles are vigorously developed, user demands in the subdivision field are more and more focused when a host factory pushes out automobile types, and electric, personalized and intelligent trends are introduced; new energy automobiles meeting the requirements of mass markets are continuously introduced, and torsion beam type suspensions which are relatively simple in structure, reasonable in space layout, excellent in durability, high in comfort and relatively economical in cost are favored around practicality.

The torsion beam structure is one of key components of the automobile chassis, and mainly plays a role in transfer so as to balance up-and-down runout of wheels, reduce shaking of the automobile and ensure stable running of the automobile.

The beam used in the torsion beam structure is manufactured by gradually applying technologies such as hydraulic forming, thermoforming and the like from the past closed structure to the present, but the weight of the beam is still relatively large in order to improve the light weight degree.

The torsion beam structure is characterized in that the connecting arms are various in form and too diversified in shape due to the strength and structural requirements of the left connecting arm and the right connecting arm.

The existing torsion beam type suspension structure is characterized in that the left and right connecting arms and two ends of the cross beam are in lap joint welding, the stress is large, the torsion beam type suspension structure belongs to stress concentration areas, fatigue cracking and other phenomena are easy to occur, and the service life of the torsion beam is restricted.

Disclosure of Invention

The utility model provides a torsion beam type suspension structure for a new energy vehicle, and aims to solve the problems of heavy weight and short service life of the existing product.

In order to solve the technical problems, the technical scheme of the utility model is as follows: a new forms of energy vehicular torsion beam type suspension, its characterized in that: the device comprises a left integrated arm, a right integrated arm and a torsion beam; the left integrated arm is structured as follows: comprises a longitudinal arm, a hinge piece, a flange plate, a shock absorber bracket and a spring bracket, wherein the longitudinal arm adopts a flexible endTowards the rigid endProgressively smaller in cross-sectionVariable cross-sectionThe structure is that the hinge piece is fixed on the flexible end of the longitudinal arm, the flange plate, the shock absorber bracket and the spring bracket are fixed on the rigid end of the longitudinal arm, and one end of the torsion beam is connected with the longitudinal arm and the spring bracket into a whole; the structure of the right integrated arm is the same as that of the left integrated arm, and a longitudinal arm and a spring bracket in the right integrated arm are connected with the other end part of the torsion beam into a whole; and a through groove is formed in the bottom surface of the torsion beam along the length direction.

The technical scheme is further defined, and the longitudinal arm is an arc-shaped pipe.

The technical scheme is further improved, and the outer circular surface of the longitudinal arm is provided with a wire harness bracket.

The technical scheme is further limited, one end of the spring support is attached to the outer circular surface of the trailing arm, and the other end of the spring support is attached to the surface of the torsion beam.

The technical scheme is further improved, the end part of the torsion beam is attached to the longitudinal arm, and reinforcing plates are arranged in the two end parts of the torsion beam.

The beneficial effects are that: the rigidity setting of the torsion beam and the adjustment of the hinge position correspondingly change the ratio of load to rigidity in a certain range so as to solve the problems of insufficient bearing capacity of the existing suspension and large performance difference such as riding comfort caused by different loads; the torsion beam adopts a channel steel-shaped structure, which is beneficial to light weight, and solves the problems of complex design structure, difficult molding, large occupation ratio and the like of the closed torsion beam in the prior market; the longitudinal arm, the spring support and the torsion beam are of an integral structure, so that the possibility of damage to the joint of the torsion beam and the longitudinal arm can be reduced, and the stable operation of the torsion beam structure of the automobile is ensured; the utility model adopts a light and compact design, is suitable for vehicles with multiple types, and is convenient for popularization and application.

Drawings

Fig. 1 is a structural diagram of the present utility model.

Fig. 2 is a partial enlarged view of fig. 1.

Fig. 3 is a view showing a trailing arm structure according to the present utility model.

Fig. 4 is a view showing a structure of a torsion beam according to the present utility model.

Detailed Description

As shown in fig. 1 and 2, a torsion beam type suspension for a new energy vehicle comprises a left integrated arm 1, a right integrated arm 2 and a torsion beam 3; the structure of the left integrated arm 1: comprising a trailing arm 101, a hinge 102, a flange 103, a damper bracket 104 and a spring bracket 105, the trailing arm being adapted from a flexible endTowards the rigid endProgressively smaller in cross-sectionVariable cross-sectionThe structure is that the hinge piece is fixed on the flexible end of the longitudinal arm, the flange plate, the shock absorber bracket and the spring bracket are fixed on the rigid end of the longitudinal arm, and one end of the torsion beam is connected with the longitudinal arm and the spring bracket into a whole; the structure of the right integrated arm is the same as that of the left integrated arm, and a longitudinal arm and a spring bracket in the right integrated arm are connected with the other end part of the torsion beam into a whole;

as shown in fig. 1, 2 and 3, the trailing arm 101 is an arc-shaped pipe, and is a tube-shaped trailing arm with a special-shaped variable cross section, and the load of bearing runout can be reasonably and effectively dispersed and transferred to a vehicle body by adopting a rigid connection torsion beam; the structure is favorable for light weight, and the strength requirement is not influenced;

as shown in fig. 1 and 2, the outer circumferential surface of the trailing arm 101 is provided with a harness bracket 106, which facilitates the fixation of the harness;

as shown in fig. 1 and 2, the hinge 102 is composed of an outer cylinder and a bushing, the outer cylinder is welded with the torsion beam, and the bushing is press-fitted into the bushing outer cylinder; the reliability of the hinge is ensured due to the specific tendency and the unidirectional movement structure;

as shown in fig. 1 and 2, one end of the spring bracket 105 is attached to the outer circumferential surface of the trailing arm, and the other end of the spring bracket is attached to the surface of the torsion beam, so that the welding area can be increased, and the strength of the joint can be improved;

as shown in fig. 4, a through groove 301 is provided on the bottom surface of the torsion beam 3 along the length direction, and the end of the torsion beam is attached to the trailing arm; the slot type torsion beam is beneficial to light weight, and does not influence the strength requirement; bonding can increase the welding area, thereby improving the strength of the joint;

as shown in fig. 4, reinforcing plates 302 are disposed in both end portions of the torsion beam 3, and are used for dispersing stress concentrated in the middle position of the trailing arm and in both end positions of the beam.

And (3) assembly description: the hinge piece on the torsion beam, the shock absorber and the pressure spring fixed on the shock absorber bracket and the spring bracket are connected with the vehicle body, and the flange plate is fixedly connected with the bearing on the hub; the jumping of the tire is transferred to the torsion beam suspension through the rim and the hub bearing, the torsion beam suspension is transferred to the vehicle body through the hinge joint, the main spring and the auxiliary spring, and the jumping is weakened in multiple stages and multiple channels.

Claims (5)

1. A new forms of energy vehicular torsion beam type suspension, its characterized in that: the device comprises a left integrated arm, a right integrated arm and a torsion beam; the left integrated arm is structured as follows: the torsion beam comprises a longitudinal arm, a hinge piece, a flange plate, a shock absorber support and a spring support, wherein the longitudinal arm adopts a variable cross-section structure with a gradually reduced cross section from a flexible end to a rigid end; the structure of the right integrated arm is the same as that of the left integrated arm, and a longitudinal arm and a spring bracket in the right integrated arm are connected with the other end part of the torsion beam into a whole; and a through groove is formed in the bottom surface of the torsion beam along the length direction.

2. The torsion beam type suspension for a new energy vehicle according to claim 1, wherein: the longitudinal arm is an arc-shaped pipe.

3. The torsion beam type suspension for a new energy vehicle according to claim 1 or 2, wherein: and a wire harness bracket is arranged on the outer circular surface of the longitudinal arm.

4. A torsion beam type suspension for a new energy vehicle according to claim 3, wherein: one end of the spring support is attached to the outer circular surface of the trailing arm, and the other end of the spring support is attached to the surface of the torsion beam.

5. The torsion beam type suspension for a new energy vehicle according to claim 1 or 2 or 4, wherein: and the end parts of the torsion beam are attached to the longitudinal arms, and reinforcing plates are arranged in the two end parts of the torsion beam.

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