CN222610860U - Independent suspension using torsion bar spring and vehicle - Google Patents

Abstract

The application provides an independent suspension adopting a torsion bar spring, which comprises a torsion bar spring body, a ball pin assembly and a swing arm assembly, wherein the outer end part of the torsion bar spring body is arranged on a vehicle body through a vehicle body end mounting bracket, at least one positioning assembly is arranged in the middle section of the torsion bar spring body and used for connecting the torsion bar spring body to the vehicle body or a vehicle frame, the inner end part of the torsion bar spring body is connected with the first end of a ball pin seat of the ball pin assembly, the ball pin is arranged on the ball pin seat, the second end of the ball pin seat is connected with one end of the swing arm body, and the swing arm body is connected with the vehicle frame or a subframe through a swing arm fixing bracket at the other end. The independent suspension adopting the torsion bar spring has a simple structure, has good space arrangement performance, can provide good suspension rigidity and damping performance, and can improve the operability and stability of a vehicle. The application also provides a vehicle with the independent suspension.

Description

Independent suspension adopting torsion bar spring and vehicle

Technical Field

The application relates to the technical field of automobile suspensions, in particular to an independent suspension adopting a torsion bar spring, and simultaneously relates to a vehicle using the independent suspension adopting the torsion bar spring.

Background

In the automotive manufacturing field, independent suspension systems are widely used to improve the comfort, handling and stability of automobiles. Independent suspension systems allow each wheel to move independently to accommodate road irregularities and vehicle handling requirements. Currently, common independent suspension systems include macpherson suspensions, dual wishbone suspensions, multi-link suspensions, and the like.

However, existing independent suspension systems have some limitations in some respects. For example, common independent suspensions employ coil springs to provide the support and shock absorbing functions of the suspension system, however, coil springs require a relatively large amount of space, which is limited in use for many vehicles with limited chassis arrangement space.

Therefore, torsion bar springs are used to replace coil springs in the prior art to overcome the technical defects, but the independent suspension system adopting the torsion bar springs provided by the prior art has obvious defects, particularly has too complex structure and cannot be well suitable for vehicles with limited chassis arrangement space, and the independent suspension system adopting the torsion bar springs provided by the prior art cannot provide the requirement of flexibly adjusting the installation size.

Disclosure of utility model

The application provides an independent suspension adopting a torsion bar spring, which aims to solve the problem that the structure is too complex in the prior art, and in some preferred embodiments based on the independent suspension, the installation size can be flexibly adjusted to adapt to the requirements of specific vehicles to different vehicle types in the specific installation process. The application also provides a vehicle using the independent suspension adopting the torsion bar spring.

The embodiment of the application provides an independent suspension adopting a torsion bar spring, which comprises a torsion bar spring body, a ball pin assembly and a swing arm assembly;

The outer end of the torsion bar spring body is mounted on a vehicle body through a vehicle body end mounting bracket, at least one positioning component is arranged in the middle section of the torsion bar spring body and used for connecting the torsion bar spring body to the vehicle body or the vehicle frame, the inner end of the torsion bar spring body is connected with the first end of a ball pin seat of a ball pin component, the ball pin is arranged on the ball pin seat, the second end of the ball pin seat is connected with one end of a swing arm body, and the swing arm body is connected with the vehicle frame or the auxiliary vehicle frame through a swing arm fixing bracket at the other end.

Optionally, spline connection is adopted between the outer end part of the torsion bar spring body and the vehicle body end mounting bracket.

Optionally, the locating component includes pressure equipment bush and rather than complex clamp, and both cooperation hoops on the outer diameter face of torsion bar spring body middle section realizes with the connection of automobile body or frame through the bolt fastening structure that sets up at pressure equipment bush wing portion.

Optionally, the structure that the end part of the inner side section of the torsion bar spring body is connected with the first end of the ball pin seat of the ball pin assembly adopts an adjustable connection structure.

Optionally, the second end of the ball pin seat is connected with the structure of the swing arm body, and an adjustable connection structure is adopted.

Optionally, the adjustable connection mechanism is a bolt connection or a threaded connection.

Optionally, the Y-dimension of the independent suspension can be adjusted by the adjustable connection structure.

Optionally, the torsion bar spring body adopts a structure with bending.

Optionally, the ball pin seat is integrally in a V-shaped structure.

Alternatively, an independent suspension employing a torsion bar spring as described in any one of the above.

Compared with the prior art, the independent suspension adopting the torsion bar spring comprises a torsion bar spring body, a ball pin assembly and a swing arm assembly, wherein the outer end part of the torsion bar spring body is arranged on a vehicle body through a vehicle body end mounting bracket, at least one positioning assembly is arranged at the middle section of the torsion bar spring body to connect the torsion bar spring body to the vehicle body or the vehicle frame, the inner side section end part of the torsion bar spring body is connected with the first end of a ball pin seat of the ball pin assembly, the ball pin is arranged on the ball pin seat, the second end of the ball pin seat is connected with the swing arm body, and the swing arm body is connected with the vehicle frame or the auxiliary vehicle frame through a swing arm fixing bracket.

In the preferred embodiment of the application, the structure that the end part of the inner side end of the torsion bar spring body is connected with the first end of the ball pin seat of the ball pin assembly adopts an adjustable connecting structure, and similarly, the structure that the second end of the ball pin seat is connected with the swing arm body can also adopt an adjustable connecting structure, and the Y-direction size of the independent suspension can be adjusted through the adjustable connecting structure so as to meet different occasions of requirements, thereby effectively increasing the adaptability of the independent suspension structure adopting the torsion bar spring to the use occasions.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a side view of an independent suspension employing torsion bar springs provided in an embodiment of the present application;

FIG. 2 is a top view of an independent suspension employing torsion bar springs according to an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 of an independent suspension employing torsion bar springs in accordance with an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along B-B in FIG. 2 of an independent suspension employing torsion bar springs according to an embodiment of the present application;

FIG. 5 is a side view of an independent suspension employing torsion bar springs according to an embodiment of the present application;

FIG. 6 is a cross-sectional view taken along section C-C of FIG. 5 of an independent suspension employing torsion bar springs in accordance with an embodiment of the present application;

Fig. 7 is an isometric view of an independent suspension employing torsion bar springs according to an embodiment of the present application.

Reference numerals:

The automobile body end installing support 1, locating component 2, pressure equipment bush 2-1, clamp 2-2, torsion bar spring body 3, ball pin subassembly 4, ball pin seat 4-1, ball pin 4-2, swing arm subassembly 5, swing arm body 5-1, swing arm fixed bolster 5-2.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than those herein described, and those skilled in the art will readily appreciate that the present application may be similarly embodied without departing from the spirit or essential characteristics thereof, and therefore the present application is not limited to the specific embodiments disclosed below.

A specific embodiment of an independent suspension employing a torsion bar spring according to the present application will be described in detail. Fig. 1 to 5 are drawings of the present application for explaining the technical solutions involved in the embodiments.

The embodiment of the application provides an independent suspension adopting a torsion bar spring.

The embodiment of the application provides an independent suspension adopting a torsion bar spring, the structure of which is shown in fig. 1-5, and the independent suspension adopting the torsion bar spring comprises a torsion bar spring body 3, a ball pin assembly 4 and a swing arm assembly 5.

Wherein, the body end installing support 1 is connected with one end of the torsion bar spring body 3, and an adjustable connecting structure or a fixed structure is adopted. The adjustable connection structure includes, but is not limited to, a bolt, a threaded connection, and the like. The body end mount bracket 1 is a connection structure for fixing components such as a chassis or an engine to a vehicle body, and the body end mount bracket 1 is required to bear not only the weight of the vehicle but also various dynamic loads during running. The mode of connecting the vehicle body end mounting bracket with the automobile can adopt modes of bolt connection, welding, bonding, buckling connection, spline connection and the like. The body end mounting bracket 1 may be mounted to a plurality of locations of the vehicle, for example, the body end mounting bracket 1 may be used to connect an engine to a vehicle body, absorb vibrations generated by the engine, and the body end mounting bracket 1 connects a suspension system to the vehicle body, providing support for the suspension system.

In the embodiment of the application, the outer end part of the torsion bar spring body 3 is mounted on a vehicle body or a vehicle frame through the vehicle body end mounting bracket 1. The outer end part of the torsion bar spring body 3 is in spline connection with the vehicle body end mounting bracket 1, and a person skilled in the art can select other connection modes such as bolt connection, welding, buckle connection and the like according to actual requirements. The middle section of the torsion bar spring body 3 is provided with at least one positioning component 2 for connecting the torsion bar spring body 3 to a vehicle body or frame. In the preferred embodiment of the application, the positioning assembly 2 comprises a press-fit bushing 2-1 and a clamp 2-2 matched with the press-fit bushing, wherein the press-fit bushing 2-1 and the clamp 2-2 are matched and hooped on the outer diameter surface of the middle section of the torsion bar spring body 3, and the connection with the vehicle body or the vehicle frame is realized through a bolt fixing structure arranged on the wing part of the press-fit bushing 2-1, so that the connection mode can provide good space arrangement performance and can be suitable for vehicles with limited chassis arrangement space. Those skilled in the art may also choose to add other common positioning components, such as rubber bushings, etc., according to actual needs.

The torsion bar spring body 3 is an important innovative part of the present embodiment. The torsion bar spring body 3 is usually made of high-strength steel, has good elasticity and durability, is a long strip-shaped metal rod, and is fixed at two ends, wherein the outer end part is mounted on a vehicle body or a vehicle frame through a vehicle body end mounting bracket 1 as described above, the middle rod body can be twisted, the positioning assembly 2 is arranged in the middle of the torsion bar spring body, so that the torsion bar spring body is connected to the vehicle body or the vehicle frame, and the other end of the torsion bar spring body 3 is connected with one end of a ball pin assembly 4 and finally connected to a swing arm assembly 5 through the ball pin assembly 4. The torsion bar spring body 3 utilizes its material elasticity, can the elastic support weight of vehicle, keep balance and the stability of vehicle, absorb impact and vibration, when the vehicle is traveling on uneven road surface, torsion deformation of torsion bar spring body 3 can absorb impact and vibration, and torsion bar spring body 3 after torsion has the trend of recovering to original state, this provides elastic restoring force for suspension system, in addition, torsion bar spring body 3 can also provide stable wheel location, help improving the controllability and the stability of vehicle, adapt to different driving conditions, simultaneously, compared with metal spring, the stress distribution that torsion bar spring produced when torsion is more even, help reducing metal fatigue.

The torsion bar spring body 3 is an elongated rod member, the volume and the occupied space of the torsion bar spring body are relatively small, and compared with the traditional coil spring or the steel plate spring, the torsion bar spring does not need a large curling space; the torsion bar spring absorbs and releases energy through torsion, the force transmission mode does not need additional mechanical parts, such as a spring seat of a spiral spring or a bracket of a steel plate spring, so that the force transmission is more efficient, the elastic energy stored by the torsion bar spring per unit volume is larger, the torsion bar spring can provide more energy storage under the same volume, the design of the whole suspension system can be simplified due to the compactness of the torsion bar spring, the number of suspension components is reduced, the space is saved, the torsion bar springs can be designed into different lengths and rigidities according to the requirement, the torsion bar springs can adapt to various space limitations, the automatic adjustment of the height of a vehicle body can be easily realized by adjusting the installation angle of the fixed end of the torsion bar spring, and the rigidity of the torsion bar spring is allowed to be adjusted by some torsion bar spring designs, the performance of the suspension can be adjusted under the condition that the torsion bar spring is not changed, the torsion bar spring is generally provided with better durability due to the structural characteristics, the torsion bar spring can bear long-time repeated loading without fatigue damage and lubrication, the potential maintenance cost and the problem that the maintenance and the maintenance condition are also relatively simple, and the connection condition of the torsion bar spring is required to be maintained relatively simply.

In this embodiment, the torsion bar spring can adopt the structure that has the kink, for example adopts L type structure, and one end provides moment of torsion, and one end replaces the swing arm, so, torsion bar spring both can replace ordinary coil spring to provide rigidity for whole car, can act as a part of swing arm again for simple structure, the cost is lower, and to a great extent has saved the arrangement space of arranging the space, especially wheel limit, can have bigger tire envelope, provides more optimizing space for turning to.

In a preferred embodiment of the present application, the ball stud assembly 4 includes a ball stud receptacle 4-1 and a ball stud 4-2. The ball pin 4-1 has one spherical end and the other rod-shaped end, the spherical end is matched with the inner spherical surface provided by the ball pin seat 4-1 to provide a hinge point, the ball pin seat 4-1 is of a V-shaped structure as a whole, one end of the V-shape is a first end and is connected with the end part of the inner side section of the torsion bar spring body 3, the connecting structure can adopt an adjustable connecting structure, for example, the adjustable connecting structure adopts a bolt connection or a threaded connection, the other end of the V-shape of the ball pin seat 4-1 is a second end and is connected with the swing arm body 5, and the connection can also adopt an adjustable connecting structure, for example, the adjustable connecting structure adopts a bolt connection or a threaded connection. Through adopting adjustable connection structure, both can adjust ball keyway Y to size (i.e. width direction size), satisfy the motorcycle type of more wheel base, can lock each other again and avoid deviate from, can adjust length in the electrodeless in a certain extent, adapt to more common problems of the suspension of platform truck, save spare part development cycle, practice thrift material management cost, mould cost etc..

In the embodiment of the application, the swing arm assembly 5 comprises a swing arm body 5-1 and a swing arm fixing bracket 5-2. The swing arm body 5-1 is connected with the frame or the auxiliary frame through a swing arm fixing bracket 5-2.

The swing arm body 5-1 may be straight, curved or have a specific shape to adapt to different suspension layouts and vehicle performance requirements, and the swing arm body 5-1 may be provided with one or more connection points for connection with other suspension components such as wheels, shock absorbers, stabilizer bars, etc. In this embodiment, one end of the swing arm body 5-1 is connected with the second end of the V-shape of the ball pin seat 4-1, and the other end of the swing arm body 5-1 is connected with the swing arm fixing bracket 5-2 by bolts, welding or clamps, and then is connected to the frame or the subframe by the swing arm fixing bracket 5-2.

The swing arm fixing bracket 5-2 may be provided with a bolt hole or a screw hole for connection with the vehicle body or other components of the suspension system. The main function of the swing arm fixing bracket 5-2 is to fix the swing arm body 5-1 to the frame or the auxiliary frame, so as to ensure the stability of the suspension system.

In the embodiment of the present application, when the swing arm body 5-1 is used in combination with the swing arm fixing bracket 5-2, they are responsible for transmitting dynamic loads of the wheels to the vehicle body and ensuring the correct relative positions between the wheels and the vehicle body.

The independent suspension using the torsion bar spring is used for the vehicle, and thus the embodiment of the vehicle using the independent suspension is obtained. When in use, a pair of wheels can be symmetrically used on the wheels with the same front and back positions, and the wheels can also be used on all the wheels. According to the specific installation environment, the adjustable connecting structure can be utilized to adjust the adjustable connecting structure, so that the adjustable connecting structure is suitable for different assembly requirements of each installation position.

The embodiment of the application provides an independent suspension adopting a torsion bar spring and a vehicle using the independent suspension. The independent suspension comprises a torsion bar spring body 3, a ball pin assembly 4 and a swing arm assembly 5. The torsion bar spring body 3 is connected to a vehicle body or a vehicle frame through the positioning assembly 2, the inner side end of the torsion bar spring body 3 is connected with the first end of the ball pin seat 4-1 of the ball pin assembly 4, and the second end of the ball pin seat 4-1 is connected with the swing arm body 5. In the preferred embodiment of the application, the ball pin seat 4-1 is connected with the torsion bar spring body 3 and the swing arm body 5-1 of the swing arm assembly 5 through bolts, so that the Y-direction size (width direction size) of the ball pin seat can be adjusted, the ball pin seat can be mutually locked to avoid falling out, and the length can be adjusted steplessly in a certain range. The independent suspension adopting the torsion bar spring has the advantages of simple structure, good space arrangement performance, good suspension rigidity and damping performance, and low cost, and the installation size of the independent suspension can be flexibly adjusted through the adjustable connecting structure so as to adapt to different use occasions.

While the application has been described in terms of preferred embodiments, it is not intended to be limiting, but rather, it will be apparent to those skilled in the art that various changes and modifications can be made herein without departing from the spirit and scope of the application as defined by the appended claims.

Claims (10)

1. An independent suspension adopting a torsion bar spring is characterized by comprising a torsion bar spring body (3), a ball pin assembly (4) and a swing arm assembly (5);

The torsion bar spring comprises a torsion bar spring body (3), a ball pin seat (4-1) and a ball pin (4-2), wherein the outer end part of the torsion bar spring body (3) is arranged on a vehicle body through a vehicle body end mounting bracket (1), at least one positioning component (2) is arranged in the middle section of the torsion bar spring body (3) to connect the torsion bar spring body (3) to the vehicle body or the vehicle frame, the inner end part of the torsion bar spring body (3) is connected with the first end of the ball pin seat (4-1) of the ball pin component (4), the ball pin (4-2) is arranged on the ball pin seat (4-1), the second end of the ball pin seat (4-1) is connected with one end of a swing arm body (5-1), and the swing arm body (5-1) is connected with the vehicle frame or the auxiliary vehicle frame through a swing arm fixing bracket (5-2) at the other end.

2. The independent suspension employing a torsion bar spring according to claim 1, wherein spline connection is employed between the outer end portion of the torsion bar spring body (3) and the vehicle body end mounting bracket (1).

3. The independent suspension adopting the torsion bar spring according to claim 1, wherein the positioning assembly (2) comprises a press-fit bushing (2-1) and a clamp (2-2) matched with the bushing, the press-fit bushing and the clamp are matched with the middle section of the torsion bar spring body (3) on the outer diameter surface of the middle section of the torsion bar spring body, and the connection with the vehicle body or the vehicle frame is realized through a bolt fixing structure arranged on a wing part of the press-fit bushing (2-1).

4. The independent suspension adopting the torsion bar spring according to claim 1, wherein the structure that the end part of the inner side end of the torsion bar spring body (3) is connected with the first end of the ball pin seat (4-1) of the ball pin assembly (4) adopts an adjustable connection structure.

5. The independent suspension using torsion bar spring according to claim 1, wherein the second end of the ball socket (4-1) is connected to the swing arm body (5-1) by an adjustable connection structure.

6. Independent suspension employing torsion bar spring according to claim 4 or 5, characterized in that,

The adjustable connecting structure is in bolted connection or threaded connection.

7. The independent suspension employing a torsion bar spring according to claim 6, wherein the Y-dimension of the independent suspension can be adjusted by the adjustable connection structure.

8. Independent suspension with torsion bar spring according to claim 1, characterized in that the torsion bar spring body (3) is of a bent structure.

9. The independent suspension employing a torsion bar spring according to claim 1, wherein the ball socket (4-1) has a V-shaped structure as a whole.

10. A vehicle having an independent suspension, characterized in that an independent suspension employing a torsion bar spring according to any one of claims 1-9 is employed.