Non-independent suspension

Abstract

The present invention relates to the field of automobile technology, and discloses a non-independent suspension device, including an automobile axle, a longitudinal arm, a coil spring and a shock absorber. A transverse thrust rod device is respectively provided on both sides of the automobile axle, and the two transverse thrust rod devices correspond to each other head to tail. The transverse thrust rod device includes a thrust rod body, the rear end of the thrust rod body is hinged to the automobile axle, and the head end of the thrust rod body is connected to a sliding part, and the sliding part enables the thrust rod body to slide laterally relative to the automobile body and to swing up and down. The technical problem to be solved is that the single longitudinal arm non-independent suspension with a transverse thrust rod in the prior art has a lateral displacement of the end of the transverse thrust rod relative to the vehicle body, thereby causing the defect of vehicle instability. The present invention effectively eliminates the lateral displacement of the transverse thrust rod and the automobile axle connection end relative to the vehicle body caused by wheel bouncing, eliminates the vehicle instability caused thereby, and improves the driving comfort.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, and in particular to a non-independent suspension device. Background Art

[0002] As people's living standards continue to improve, cars have brought a lot of convenience to people's travel. At the same time, with the continuous updating of products in the automobile market, the requirements for products will also increase accordingly, especially in terms of handling stability and vehicle comfort.

[0003] A common phenomenon in some cars is the instability or uncontrollable deviation of the vehicle, especially in high-speed conditions and complex road conditions. Vehicles with poor stability can easily cause subjective fatigue and panic in the driver, seriously affecting driving safety. In addition to quality assurance and manufacturing errors, the stability of the vehicle and the motion coordination of related systems are the basis for structural design to ensure performance.

[0004] In the traditional single trailing arm non-independent suspension with a transverse thrust rod, when the wheel bounces and causes the vehicle axle to bounce, due to the restraint of the connection end with the vehicle body, the transverse thrust rod and the vehicle axle connection end can only do pendulum motion with the other end as the center of the circle. The motion trajectory is as follows: Figure 1 As shown in A', the end of the lateral thrust rod thus produces a lateral displacement relative to the vehicle body. The lateral displacement is as follows Figure 1 As shown in W, when the car is driving at high speed, one of the wheels will jump momentarily, making the vehicle unstable. Summary of the invention

[0005] In view of the shortcomings of the background technology, the present invention provides a non-independent suspension device. The technical problem to be solved is that the single-trailing-arm non-independent suspension with a lateral thrust rod in the prior art has a lateral displacement of the end of the lateral thrust rod relative to the vehicle body, thereby causing the defect of vehicle instability.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A non-independent suspension device includes a vehicle axle, a longitudinal arm, a coil spring and a shock absorber, wherein the two longitudinal arms are symmetrically arranged at the two ends of the vehicle axle, the two coil springs are respectively arranged at the two ends of the vehicle axle through spring seats, the two shock absorbers are respectively arranged at the two ends of the vehicle axle, and a transverse thrust rod device is respectively provided on both sides of the vehicle axle, and the two transverse thrust rod devices correspond to each other head to tail. The transverse thrust rod device includes a thrust rod body, the rear end of the thrust rod body is hinged to the vehicle axle, and the head end of the thrust rod body is connected to a sliding part, and the sliding part enables the thrust rod body to slide laterally relative to the vehicle body and to swing up and down.

[0008] Preferably, the sliding portion includes a mounting seat with a U-shaped structure, the mounting seat is sleeved outside the thrust rod body, the mounting seat includes a top plate and wing plates symmetrically arranged on both sides of the top plate, the top plate is fixedly connected to the automobile body, the wing plate has an arc-shaped waist hole longitudinally opened, and a strip hole transversely opened, a first sliding column is arranged at the head end of the thrust rod body, the first sliding column is slidably connected to the strip hole, and a second sliding column is arranged on the middle side of the first sliding column on the thrust rod body, and the second sliding column is slidably connected to the arc-shaped waist hole.

[0009] Preferably, the top of the coil spring is connected to the automobile body via a buffer block.

[0010] Preferably, a steel sleeve is welded to the tail end of the thrust rod body, and a sliding bushing is installed on the steel sleeve.

[0011] Preferably, a first sleeve is welded to the thrust rod body, and the first sliding column is rotatably connected to the thrust rod body via the first sleeve.

[0012] Preferably, a second sleeve is welded to the thrust rod body, and the second sliding column is rotatably connected to the thrust rod body via the second sleeve.

[0013] Preferably, a first retaining ring is sleeved and installed on the first sliding column, the first retaining ring is located outside the mounting seat, and a locking pin is installed on the first sliding column outside the first retaining ring.

[0014] Preferably, the edge of the arc-shaped waist hole is connected with a guide frame made of POM plastic, a second retaining ring is sleeved and installed on the second sliding column outside the guide frame, and a fastener is installed outside the second retaining ring.

[0015] Compared with the prior art, the present invention has the beneficial effects of effectively eliminating the lateral displacement of the lateral thrust rod and the automobile axle connection end relative to the vehicle body caused by wheel bounce, eliminating the vehicle instability caused thereby, and improving driving comfort.

[0016] At the same time, since the aforementioned lateral displacement is eliminated, the lateral displacement of the longitudinal arm, shock absorber, coil spring and tire is also eliminated, which brings many advantages. The lateral displacement of the longitudinal arm is eliminated, and the service life of the rubber bushing is improved; the lateral swing of the shock absorber is eliminated, the lateral friction of the shock absorber is reduced, and the service life of the shock absorber is improved; the lateral swing of the coil spring is eliminated, the lateral force of the coil spring, buffer block and spring seat device is reduced, and the service life of the device is improved; the lateral force of the tire is eliminated, and the longitudinal stiffness characteristics of the tire are improved, so that the longitudinal driving and braking characteristics of the tire at high speed are steadily improved. In summary, the present invention has a significant improvement over the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention has the following accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the prior art;

[0019] Figure 2 It is a schematic diagram of the present invention;

[0020] Figure 3 It is a schematic diagram of the motion trajectory of the lateral thrust rod device of the present invention;

[0021] Figure 4 is a schematic diagram of the lateral thrust rod device of the present invention;

[0022] Figure 5 This is an exploded view of the transverse thrust rod device of the present invention. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] like Figure 2-5 As shown, the non-independent suspension device includes a vehicle axle 2, a longitudinal arm 4, a coil spring 5 and a shock absorber 6, the two longitudinal arms 4 are symmetrically arranged at the two ends of the vehicle axle 2, the two coil springs 5 ​​are respectively arranged at the two ends of the vehicle axle 2 through spring seats 8, the two shock absorbers 6 are respectively arranged at the two ends of the vehicle axle 2, and a transverse thrust rod device is respectively provided on both sides of the vehicle axle 2, and the two transverse thrust rod devices correspond to each other head to tail. The transverse thrust rod device includes a thrust rod body 1, the rear end of the thrust rod body 1 is hinged to the vehicle axle 2, and the head end of the thrust rod body 1 is connected to a sliding part, which enables the thrust rod body 1 to slide laterally relative to the vehicle body and to swing up and down.

[0025] The sliding portion includes a mounting seat 3 of a U-shaped structure, which is sleeved on the outside of the thrust rod body 1. The mounting seat 3 includes a top plate 31 and wing plates 32 symmetrically arranged on both sides of the top plate 31. The top plate 31 is fixedly connected to the automobile body. The wing plate 32 has an arc-shaped waist hole 33 in the longitudinal direction and a strip hole 34 in the transverse direction. A first sliding column 11 is arranged at the end of the thrust rod body 1, and the first sliding column 11 is slidably connected to the strip hole 34. A second sliding column 12 is arranged on the middle side of the first sliding column 11 on the thrust rod body 1, and the second sliding column 12 is slidably connected to the arc-shaped waist hole 33.

[0026] Taking the transverse thrust rod device on one side of the automobile axle 2 as an example, the thrust rod body 1 can realize the following movements, such as the motion trajectories A, B and C in the figure. The motion trajectory B means that the thrust rod body 1 can move in the strip hole 34 in the transverse direction, and the motion trajectory C means that the thrust rod body 1 can swing up and down in the arc waist hole 33 with the end in the strip hole 34 as the center of the circle. Since the head end of the thrust rod body 1 is not fixed in the transverse direction and can move laterally along the strip hole 34, when the wheel bounce causes the automobile axle 2 to bounce up and down, the tail end of the thrust rod body 1 also moves straight up and down, such as the motion trajectory A, rather than the motion trajectory A', and the head end of the thrust rod body 1 cooperates with the movement of the connecting end of the thrust rod body 1 and the automobile axle 2, so as to generate the motion trajectories B and C, thereby eliminating the lateral displacement; the transverse thrust rod device on the other side of the automobile axle 2, because the up and down jumping end of the automobile axle 2 is connected to the head end of the transverse thrust rod device, that is, the connecting end with the vehicle body, there is no lateral displacement relative to the vehicle body.

[0027] The top of the coil spring 5 is connected to the automobile body through a buffer block 7. The buffer block 7 increases the force-bearing area of ​​the coil spring 5, so that the force of the coil spring 5 is more uniform and the elastic shock-absorbing effect is better.

[0028] A steel sleeve 17 is welded to the hinged end of the thrust rod body 1 and the automobile axle 2, and a sliding bushing 18 is installed in the steel sleeve 17. The sliding bushing 18 is rotatably connected to the automobile axle 2 through a sliding sleeve 19, so that the thrust rod body 1 and the automobile axle 2 are hinged and can slide slightly in the axial direction, making the movement smoother.

[0029] A first sleeve 13 is welded on the thrust rod body 1, and the first sliding column 11 is rotatably connected to the thrust rod body 1 through the first sleeve 13. In this way, the first sliding column 11 can rotate relative to the thrust rod body 1 and can also slide relative to the strip hole 34, further improving the smoothness of movement.

[0030] A second sleeve 14 is welded on the thrust rod body 1, and the second sliding column 12 is rotatably connected to the thrust rod body 1 through the second sleeve 14. In this way, the second sliding column 12 can rotate relative to the thrust rod body 1 and can also slide relative to the arc-shaped waist hole 33, further improving the smoothness of movement.

[0031] A first retaining ring 15 is sleeved and installed on the first sliding column 11 . The first retaining ring 15 is located outside the mounting seat 3 . A locking pin 16 is installed on the first sliding column 11 outside the first retaining ring 15 .

[0032] The edge of the arc-shaped waist hole 33 is connected with a guide frame 35 made of POM plastic. A second retaining ring 36 is sleeved on the second sliding column 12 outside the guide frame 35. A fastener is installed outside the second retaining ring 36. The fastener can be a nut 37. POM plastic has good sliding properties and is injected with grease. The whole structure is simple and reliable.

[0033] The above is based on the present invention as an inspiration. Through the above description, relevant staff can make various changes and modifications without departing from the technical idea of ​​this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A non-independent suspension device, comprising a vehicle axle, a longitudinal arm, a coil spring and a shock absorber, wherein the two longitudinal arms are symmetrically arranged at both ends of the vehicle axle, the two coil springs are respectively arranged at both ends of the vehicle axle through spring seats, and the two shock absorbers are respectively arranged at both ends of the vehicle axle, characterized in that: A transverse thrust rod device is respectively provided on both sides of the automobile axle, and the two transverse thrust rod devices correspond to each other head to tail, and the transverse thrust rod device comprises a thrust rod body, the tail end of the thrust rod body is hinged to the automobile axle, and the head end of the thrust rod body is connected to a sliding part, and the sliding part enables the thrust rod body to slide laterally relative to the automobile body and swing up and down; The sliding part includes a mounting seat of a U-shaped structure, the mounting seat is sleeved outside the thrust rod body, the mounting seat includes a top plate and wing plates symmetrically arranged on both sides of the top plate, the top plate is fixedly connected to the automobile body, the wing plate has an arc-shaped waist hole longitudinally opened, and a strip hole transversely opened, a first sliding column is arranged at the head end of the thrust rod body, the first sliding column is slidably connected to the strip hole, and a second sliding column is arranged on the middle side of the first sliding column on the thrust rod body, and the second sliding column is slidably connected to the arc-shaped waist hole; A steel sleeve is welded at the tail end of the thrust rod body, and a sliding bushing is installed on the steel sleeve; A first sleeve is welded on the thrust rod body, and the first sliding column is rotatably connected to the thrust rod body through the first sleeve; A second sleeve is welded on the thrust rod body, and the second sliding column is rotatably connected to the thrust rod body through the second sleeve; A first retaining ring is sleeved and installed on the first sliding column. The first retaining ring is located outside the mounting seat. A locking pin is installed on the first sliding column outside the first retaining ring.

2. The non-independent suspension device according to claim 1, characterized in that: The top of the coil spring is connected to the automobile body through a buffer block.

3. The non-independent suspension device according to claim 1, characterized in that: The edge of the arc-shaped waist hole is connected with a guide frame made of POM plastic, and a second retaining ring is sleeved and installed on the second sliding column outside the guide frame, and a fastener is installed outside the second retaining ring.

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