CN203937477U - A kind of automobile suspension system - Google Patents

Abstract

The utility model discloses an automobile suspension system, which comprises a torsion rubber spring, a longitudinal swing arm, a limit block, a shock absorber, a side pull rod, an axle, a vehicle frame or a vehicle body and wheels. There is a side tie rod on the top, one end of the side tie rod is connected with the axle, and the other end is connected with the frame or body, and shock absorbers are arranged symmetrically on the axle, the upper end of each shock absorber is connected with the frame or body, and the lower end is connected with the axle. Both ends of the axle are symmetrically arranged with longitudinal swing arms, one end of each longitudinal swing arm is connected with the axle, and the other end is connected with the vehicle frame or vehicle body through a torsion rubber spring, and the limit block is installed on the longitudinal swing arm through bolts. In the automobile suspension system of the utility model, the torsion rubber spring not only assumes the function of connecting the longitudinal swing arm with the frame or the vehicle body, but also assumes the function of the elastic element of the suspension system, so that the metal elastic elements necessary for the traditional suspension can be eliminated. Save cost and reduce weight.

Description

A car suspension system

technical field

The utility model relates to the technical field of automobile suspension, in particular to an automobile suspension system with torsion rubber spring.

Background technique

The car suspension is one of the important assemblies on the car. Its main task is to transmit all the forces and moments acting between the wheels and the frame (or body), and to ease the impact load transmitted to the frame (or body) by the road. Attenuate the vibration caused by this to ensure the smooth running and handling stability of the car. Among them, the rational design of the stiffness and damping of the suspension system plays a vital role in ensuring the performance of the vehicle.

There are many types of car suspensions. The elastic elements of small car suspension systems generally use metal coil springs and hydraulic cylinder shock absorbers to attenuate vibrations. The traditional automobile suspension system has problems such as the system stiffness and damping change curve are difficult to match the actual driving conditions, the number of parts is large, the suspension system has a large self-weight, and the noise is large.

Utility model content

The purpose of this utility model is to provide a new type of automobile suspension system. The stiffness and damping of the suspension system change with the change of driving conditions. Noise generated during vibration of components.

In order to achieve the above purpose, the utility model provides an automobile suspension system, which includes torsion rubber springs, longitudinal swing arms, limit blocks, shock absorbers, side tie rods, axles, vehicle frames or vehicle bodies and wheels, and the two ends of the axles are respectively To connect the wheels, a side tie rod is arranged on the axle, one end of the side tie rod is connected to the axle, the other end is connected to the frame or the body, and shock absorbers are arranged symmetrically on the axle, and the upper end of each shock absorber is connected to the frame or body. The lower end is connected to the axle, and longitudinal swing arms are arranged symmetrically at both ends of the axle. One end of each longitudinal swing arm is connected to the axle, and the other end is connected to the frame or the vehicle body through a torsion rubber spring. On the swing arm, the torsion rubber spring includes a metal outer bushing and a metal inner bushing, the metal inner bushing is located inside the metal outer bushing, and a rubber body is arranged between the metal inner bushing and the metal outer bushing to connect the two. It is fixedly connected, and a metal stopper is set at one end of the rubber body, and an outer flange structure is set at the other end. In the automobile suspension system of the utility model, the torsion rubber spring not only assumes the function of connecting the longitudinal swing arm with the frame or the vehicle body, but also assumes the function of the elastic element of the suspension system, so that the metal elastic elements necessary for the traditional suspension can be eliminated. Save cost and reduce weight. A metal stopper is set at one end of the rubber body to increase the compression of the rubber body, thereby improving the torsion, axial and radial bearing capacity of the torsion rubber spring, and the other end is set with an outer flange structure to ease the torsion of the rubber spring shaft Directional vibration and shock.

As a further improvement of the utility model, a plurality of metal cylinders uniformly distributed along the circumferential direction are compounded inside the rubber body. The addition of metal cylinders further improves the torsional and radial bearing capacity of the torsion rubber spring.

Wherein, a side tie rod is arranged on one side of the axle or two side tie rods are symmetrically arranged on the axle; the limit block includes a rubber part and a metal bottom plate with bolts, the cross-sectional edge of the rubber part is concave-convex, and the lower end of the rubber part It is fixedly connected with the metal bottom plate with bolts through the vulcanization process; the cross-sectional edge of the rubber part is concave-convex to provide nonlinear mechanical characteristics; the spring of the internal valve of the shock absorber adopts a variable-pitch helical spring. The variable pitch coil spring has nonlinear mechanical characteristics, so that the shock absorber can provide dynamic variable damping characteristics.

Compared with the traditional automobile suspension system, the torsion rubber spring used in the utility model not only undertakes the function of connecting the longitudinal swing arm with the frame or the vehicle body, but also undertakes the function of the elastic element of the suspension system, so that the metal parts necessary for the traditional suspension can be eliminated. Elastic elements save cost and reduce weight. When the vehicle body structure is provided with a vehicle frame, the side tie rods, shock absorbers and trailing arms are all connected to the vehicle frame; Connect directly to the body. Torsion rubber springs can provide nonlinear mechanical properties to meet the needs of vehicle dynamic load changes. At the same time, the rubber material is used as the elastic element, which can also avoid the noise generated by the metal elastic element when it vibrates. The non-linear mechanical characteristics of the concave-convex limit block on the vertical edge and the shock absorber including the variable-pitch coil spring can also dynamically change the stiffness and damping of the suspension system according to the load state of the suspension system. The vehicle handling stability and smooth performance. Therefore, the automobile suspension system of the present invention has the characteristics of less space occupation, light weight, low noise and low cost.

Description of drawings

Figure 1 is a perspective view of the utility model;

Figure 2 is a perspective view of the torsion rubber spring;

Figure 3 is a front view of the torsion rubber spring;

Figure 4 is a sectional view along the A-A direction of Figure 3;

Figure 5 is a sectional view along the B-B direction of Figure 3;

Figure 6 is a perspective view of the limit block;

Figure 7 is the front view of the limit block;

Figure 8 is a C-C sectional view of Figure 7;

Figure 9 is a front view of the shock absorber;

Figure 10 is a D-D sectional view of Figure 9;

Figure 11 is the front view of the variable pitch spring;

Figure 12 is the deformation-load diagram of the variable pitch spring;

Among them, 1-torsion rubber spring, 1-1-metal outer bushing, 1-2-metal stopper, 1-3-rubber body, 1-4-metal cylinder, 1-5-metal inner bushing, 2- Trailing arm, 3-limit block, 3-1-rubber parts, 3-2-metal base plate with bolts, 4-shock absorber, 4-1-variable pitch coil spring, 4-2-valve, 5- Side tie rod, 6-axle, 7-frame or body, 8-wheel.

Detailed ways

The preferred technical solutions of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in the figure, an automobile suspension system of the present utility model includes a torsion rubber spring 1, a longitudinal swing arm 2, a limit block 3, a shock absorber 4, a side tie rod 5, an axle 6, a vehicle frame or a vehicle body 7 and The wheels 8 are connected to the wheels 8 at both ends of the axle 6, and a side tie rod 5 is arranged on the axle 6. One end of the side tie rod 5 is connected to the axle 6, and the other end is connected to the vehicle frame or the vehicle body 7. One or two side tie rods 5 can be provided. A side tie rod 5 is arranged on one side of the axle 6 or two side tie rods 5 are symmetrically arranged on the axle 6, and a shock absorber 4 is arranged symmetrically on the axle 6, and the upper end of each shock absorber 4 is connected to the vehicle frame or the vehicle body. 7, the lower end is connected to the axle 6, and a longitudinal swing arm 2 is arranged symmetrically at both ends of the axle 6. One end of each longitudinal swing arm 2 is connected to the axle 6, and the other end is connected to the vehicle frame or vehicle body 7 through the torsion rubber spring 1. connection, the limit block 3 is installed on the longitudinal swing arm 2 through bolts, the torsion rubber spring 1 includes a metal outer bushing 1-1 and a metal inner bushing 1-5, and the metal inner bushing 1-5 is located on the metal outer shaft Inside the sleeve 1-1, a rubber body 1-3 is set between the metal inner shaft sleeve 1-5 and the metal outer shaft sleeve 1-1 to connect the two fixedly, and a metal stopper is set at one end of the rubber body 1-3 1-2, the other end is provided with an outer flange structure, and a plurality of metal cylinders 1-4 uniformly distributed along the circumferential direction are compounded inside the rubber body 1-3, wherein the limiting block 3 includes rubber parts 3-1 and The metal bottom plate 3-2 with bolts, the cross-sectional edge of the rubber part 3-1 is concave-convex, and the lower end of the rubber part 3-1 is fixedly connected with the metal bottom plate 3-2 with bolts through a vulcanization process; the shock absorber 4 The spring of internal valve 4-2 adopts variable pitch helical spring 4-1.

In the automobile suspension system of the utility model, the torsion rubber spring not only assumes the function of connecting the longitudinal swing arm with the frame or the vehicle body, but also assumes the function of the elastic element of the suspension system, so that the metal elastic elements necessary for the traditional suspension can be eliminated. Save cost and reduce weight. When the vehicle body structure is provided with a vehicle frame, the side tie rods, shock absorbers and trailing arms are all connected to the vehicle frame; Connect directly to the body. A metal stopper is set at one end of the rubber body to increase the compression of the rubber body, thereby improving the torsional, axial and radial bearing capacity of the torsion rubber spring. Axial vibration and shock.

The addition of metal cylinders further improves the torsional and radial bearing capacity of the torsion rubber spring.

The concave-convex shape of the section edge of the rubber part can provide nonlinear mechanical characteristics; the variable-pitch helical spring has nonlinear mechanical characteristics, so that the shock absorber can provide dynamic variable damping characteristics.

The embodiments described above are some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.

When the car is running, the wheel jumps up, driving the axle and one end of the trailing arm to jump up, the trailing arm twists, the torsion rubber spring acts as an elastic element, the wheel continues to jump up, and the upper part of the limit block contacts the frame or body to play a non-stop Linear limit bearing action. In the process of wheel jumping, the shock absorber provides corresponding damping force as the load increases to attenuate the vibration of the vehicle, thereby improving the handling stability and smoothness of the vehicle.

The torsion rubber spring used in the suspension system of the utility model not only undertakes the function of connecting the longitudinal swing arm with the vehicle frame or the vehicle body, but also undertakes the function of the elastic element of the suspension system, so that the metal elastic elements necessary for the traditional suspension can be eliminated, saving energy. cost, reduced weight. The use of rubber material as the elastic element can also avoid the noise generated by the metal elastic element when it vibrates. The nonlinear mechanical characteristics of the torsion rubber spring, the concave-convex limit block on the vertical edge, and the shock absorber including the variable-pitch coil spring can dynamically change the stiffness and damping of the suspension system according to the load state of the suspension system. Therefore, vehicle handling stability and smooth performance are improved. Therefore, the automobile suspension system of the present invention has the characteristics of less space occupation, light weight, low noise and low cost.

Claims (5)

1. An automobile suspension system, characterized in that it includes a torsion rubber spring (1), a longitudinal swing arm (2), a limit block (3), a shock absorber (4), a side tie rod (5), and an axle ( 6), the frame or body (7) and the wheels (8), the two ends of the axle (6) are respectively connected to the wheels (8), and the side tie rod (5) is arranged on the axle (6), and one end of the side tie rod (5) is connected to the The axle (6) is connected, and the other end is connected with the vehicle frame or the vehicle body (7), and the shock absorber (4) is arranged symmetrically on the axle (6), and the upper end of each shock absorber (4) is connected with the vehicle frame or the vehicle body (7). ), the lower end is connected to the axle (6), and a longitudinal swing arm (2) is arranged symmetrically at both ends of the axle (6). One end of each longitudinal swing arm (2) is connected to the axle (6), and the other end is passed through The torsion rubber spring (1) is connected with the frame or body (7), the limit block (3) is installed on the longitudinal swing arm (2) through bolts, and the torsion rubber spring (1) includes a metal outer bushing (1- 1) and the metal inner bushing (1-5), the metal inner bushing (1-5) is located inside the metal outer bushing (1-1), and the metal inner bushing (1-5) and the metal outer bushing A rubber body (1-3) is arranged between (1-1) to connect them fixedly, and a metal stopper (1-2) is arranged at one end of the rubber body (1-3), and an outer flange structure is arranged at the other end. 2. An automobile suspension system according to claim 1, characterized in that: one side tie rod (5) is arranged on one side of the axle (6) or two side tie rods are symmetrically arranged on the axle (6) ( 5). 3. The automobile suspension system according to claim 1, characterized in that: the rubber body (1-3) is compounded with a plurality of metal cylinders (1-4) uniformly distributed along the circumferential direction. 4. The automobile suspension system according to claim 1, characterized in that: the limit block (3) includes a rubber part (3-1) and a metal bottom plate (3-2) with bolts, and the rubber part The edge of the section of (3-1) is concave-convex, and the lower end of the rubber part (3-1) is fixedly connected with the metal bottom plate (3-2) with bolts. 5. An automobile suspension system according to claim 1 or 2 or 3 or 4, characterized in that: the spring of the internal valve (4-2) of the shock absorber (4) adopts a variable pitch coil spring (4 -1).