CN212555716U - FSAE racing car double-cross-arm suspension anti-tilting device - Google Patents

Abstract

The utility model discloses a double-wishbone suspension anti-tilting device for FSAE racing cars, which comprises two wishbone suspensions, wherein each wishbone suspension comprises a stand column connected on the wheel edge, the edge of the stand column is connected with one end of a push rod through a joint bearing, the other end of the push rod is connected with a rocker through a shaft, the rocker is connected on a frame through rotation, the rocker is also connected with a torsion arm connecting rod and a torsion arm in sequence, the two torsion arms are fixedly connected through a torsion bar spring, and the two ends of the torsion bar spring are both connected on the frame through the torsion arm; on the basis of a common double-cross-arm independent suspension, a torsion bar spring is introduced to serve as an anti-roll bar, and meanwhile, the effect of a third spring is achieved, so that the requirement for arrangement space of the anti-roll bar of the formula car is greatly reduced, the mass of the system is obviously reduced on the original basis, and the controllability of the car is improved from two aspects of car roll gradient control and car weight control.

Description

FSAE racing car double-cross-arm suspension anti-tilting device

Technical Field

The utility model belongs to the technical field of vehicle engineering equipment, concretely relates to FSAE cycle racing double wishbone suspension anti-tilt device.

Background

College formula motorcycle race usually adopts two cross arm formula independent suspensions, when the vehicle turned to at a high speed, because the vehicle received the effect of lateral force, the automobile body can take place great heeling, is unfavorable for the motion state and the riding comfort of control vehicle, thus FSAE motorcycle race will install anti-roll rod additional more, controls the gradient that heels when the vehicle turned. The conventional anti-roll bar is U-shaped or T-shaped.

The U-shaped anti-roll bar system is simple and easy to manufacture, and consists of a connecting rod, a torsion arm, a torsion bar and a frame connecting piece, and the length of the effective torsion arm can be usually adjusted. However, the required layout space is large, and particularly, the torsion bar needs to pass through the lower part of the vehicle body, so that the ground clearance of the vehicle body is not easy to control, and the airflow at the lower part of the vehicle body is easy to disturb, which is not beneficial to increasing the downward pressure of the vehicle.

The T-shaped anti-roll bar system is more compact and can be completely arranged in the vehicle body, the torsion arm and the torsion bar form a T shape, and the effective length of the torsion arm is usually adjustable. However, in order to lower the spring stiffness of the two original shock absorbers and enhance the tire grip, a third shock absorber needs to be added to the T-shaped anti-roll bar, and when two wheels bounce upwards relative to the vehicle body at the same time, the third shock absorber is compressed. Therefore, because the third shock absorber is introduced, the mass of the system is obviously increased and decreased, which is not beneficial to the controllability of the vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a FSAE cycle racing double wishbone suspension anti-tilt device has solved the required big and great problem of quality in space of arranging of current equation cycle racing suspension anti-tilt system.

The technical scheme that the utility model adopted is, a two xarm suspension anti-tilting devices of FSAE cycle racing, including two xarm suspensions, every xarm suspension is including connecting the stand on the wheel limit, and the stand edge passes through joint bearing and connects push rod one end, and the push rod other end shakes the piece through the hub connection, shakes the piece and connects on the frame through rotating, shakes the piece and still connects gradually knuckle arm connecting rod, torque arm, through torsion bar spring fixed connection between two torque arms, and torsion bar spring both ends are all worn out the torque arm and are connected on the frame.

The utility model discloses a characteristics still lie in:

the rocking piece is triangle-shaped or fan-shaped, and the first angle of rocking piece passes through the hub connection push rod other end, and the second angle is connected on the frame through rotating, and the third angle passes through hub connection torque arm connecting rod.

The swinging piece is connected to the frame through a bearing.

The position of the rocker piece close to the torsion arm connecting rod is also connected with one end of a shock absorber, and the other end of the shock absorber is connected to the frame.

The edge of the upright post is also respectively connected with an upper control arm and a lower control arm through a joint bearing.

The upper control arm, the lower control arm, the torsion bar spring and the shock absorber are connected to the frame through the frame fixing lug.

The utility model has the advantages that:

this novel two xarm suspension anti-tipping devices of FSAE cycle racing to general two xarm independent suspensions are the basis, introduce torsion bar spring as anti-tipping rod, play the effect of third spring simultaneously, make the equation cycle racing anti-tipping rod arrange the space demand and significantly reduce, make the quality of system have obvious the reduction on former basis simultaneously, improve the nature controlled of vehicle in two aspects of the gradient control that heels from the vehicle and vehicle weight control.

Drawings

Fig. 1 is a schematic structural view of a double-wishbone suspension anti-tilting device of an FSAE racing car of the present invention.

In the figure, 1, an upper control arm, 2, a lower control arm, 3, a push rod, 4, a rocker, 5, a torsion arm, 6, a torsion bar spring, 7, a fixed lug, 8, a torsion arm connecting rod, 9, an upright post and 10, a shock absorber.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model relates to a FSAE cycle racing double wishbone suspension anti-tilt device, as shown in FIG. 1, including two wishbone suspensions, every wishbone suspension is including connecting the stand 9 on the wheel limit, and 3 one ends of joint bearing connection push rod are passed through at the stand 9 edge, and 3 other ends of push rod are through the hub connection shake piece 4, shake piece 4 and connect on the frame through rotating, shake piece 4 and still connect gradually knuckle arm connecting rod 8, knuckle arm 5, through 6 fixed connection of torsion bar spring between two knuckle arms 5, and torsion bar spring 6 both ends are all worn out knuckle arm 5 and are connected on the frame.

The rocker 4 is triangular or fan-shaped, the first angle of the rocker 4 is connected with the other end of the push rod 3 through a shaft, the second angle is connected on the frame through rotation, and the third angle is connected with the torque arm connecting rod 8 through a shaft.

The swinging piece 4 is connected to the frame through a bearing.

The position of the swinging piece 4 close to the torsion arm connecting rod 8 is also connected with one end of a shock absorber 10, and the other end of the shock absorber 10 is connected on the frame.

The edge of the upright post 9 is also respectively connected with the upper control arm 1 and the lower control arm 2 through joint bearings.

The upper control arm 1, the lower control arm 2, the torsion bar spring 6 and the shock absorber 10 are all connected to the frame through the frame fixing lug 7.

The utility model relates to a function of each part among FSAE cycle racing double wishbone suspension anti-tilt device is as follows:

the upper control arm 1 is of a triangular structure formed by connecting one ends of two single rods through shafts, the shaft connecting part is connected to the upright post 9, and the other two free ends are connected to the frame through the fixing lug 7, so that the longitudinal degree of freedom of a wheel edge system of the racing car can be controlled, and the wheel edge system is fixedly connected with the frame.

The lower control arm 2 is an N-shaped structure formed by sequentially connecting three single rods, one free end and one corner of the lower control arm are connected to the upright post 9, the other free end and the other corner of the lower control arm are connected to the frame, the longitudinal degree of freedom of a wheel edge system of the racing car can be controlled, the wheel edge system is fixedly connected with the frame, and the toe-in-front angle of a wheel can be adjusted.

The push rod 3 can transmit the position change of the upright post 9, which is stressed, to the swinging piece 4.

One corner of the swinging piece 4 is connected to the frame through a bearing, one corner is connected with the torque arm connecting rod 8, and the other corner is connected with the push rod 3.

One end of the torque arm 5 is fixedly connected with a torsion bar spring 6 and is fixedly connected to the frame, the other end of the torque arm is connected with a torque arm connecting rod 8, and when the torque arm connecting rod 8 moves, the torque arm 5 also moves.

When one vehicle is bouncing, the torsion bar spring 6 can make the rotation angles of the left and right torsion arms 5 relative to the vehicle body unequal.

The utility model relates to a FSAE cycle racing double wishbone suspension anti-tilt device's application method does:

when the wheel on one side jumps upwards, the upwards jumping force acts on the upright post 9 on the side, the upright post 9 jumps upwards, so that the upper control arm 1 and the lower control arm 2 rotate around the joint bearing, the push rod 3 pushes the swinging piece 4 to rotate, and the rotation of the swinging piece 4 drives the shock absorber 10 to compress, thereby playing a shock absorption role. When the rocker rotates, the motion of the torque arm connecting rod 8 is also driven, so that the torque arm 5 rotates, the torque of the rotation of the torque arm 5 acts on the torsion bar spring 6, the torsion bar spring 6 acts on the torque arm 5 on the other side, the torque arm 5 on the other side rotates towards the direction close to the rocker 4, the rocker 4 rotates under the drive of the torsion bar spring, the shock absorber 10 on the side is compressed, the push rod 3 on the side also moves upwards to drive the stand column 9 on the side to move upwards, and the torsion bar spring 6 can twist, so that the rotating angles of the left torsion arm 5 and the right torsion arm 5 are different, so that the stand column 9 on the other side also moves upwards when the stand column 9 on one side moves upwards, and the motion stroke of the stand column 9 on the other side is slightly smaller than the stroke of the stand column 9 on one side which originally moves.

When the vehicle is over-bent, the outer upright 9 is the upright 9 which moves upwards, the angular stiffness of the suspension is properly supplemented due to the action of the cross arm suspension and the torsion bar spring 6, the upward movement of the outer upright 9 is blocked, and meanwhile, the extension degree of the inner upright 9 is also inhibited, so that the anti-tilt effect is achieved. Moreover, because the torsion bar spring 6 is mounted on the frame only for limiting the relative position without involving the rotation, the anti-roll system does not increase the suspension stiffness when the left and right wheels move upwards simultaneously, and does not cause additional tire grip loss, thereby playing the role of a third spring in the traditional T-shaped anti-roll bar system.

In this way, the utility model relates to a FSAE cycle racing double wishbone suspension anti-tilt device to on the basis of general double wishbone independent suspension, introduce torsion bar spring as anti-roll bar, play the effect of third spring simultaneously, make the equation cycle racing anti-roll bar arrange the space demand and significantly reduce, make the quality of system have obvious the reduction on former basis simultaneously, improve the nature controlled of vehicle in two aspects of the gradient control that heels from the vehicle and vehicle weight control.

Claims (6)

1. The utility model provides a two xarm suspension anti-tilting device of FSAE cycle racing, its characterized in that, includes two xarm suspensions, every the xarm suspension is including connecting stand (9) on the wheel limit, stand (9) edge is through joint bearing connection push rod (3) one end, push rod (3) other end is through hub connection swinging plate (4), swinging plate (4) are connected on the frame through rotating, swinging plate (4) still connect gradually torque arm connecting rod (8), torque arm (5), two through torsion bar spring (6) fixed connection between torque arm (5), just torsion bar spring (6) both ends are all worn out torque arm (5) and are connected on the frame.

2. The FSAE racing double wishbone suspension anti-roll device according to claim 1, characterized in that the rocker (4) is triangular or fan-shaped, the first corner of the rocker (4) is connected to the other end of the push rod (3) through a shaft, the second corner is connected to the frame through rotation, and the third corner is connected to the torsion arm connecting rod (8) through a shaft.

3. The FSAE racing double wishbone suspension anti-roll device according to claim 1, characterized in that the rocker blade (4) is connected to the frame by bearings.

4. The FSAE racing double wishbone suspension anti-roll device of claim 1, characterized in that the rocker (4) is further connected to one end of a shock absorber (10) at a location near the torsion arm connecting rod (8), and the other end of the shock absorber (10) is connected to the vehicle frame.

5. The FSAE racing double wishbone suspension anti-roll device according to claim 1, characterized in that the edges of the upright (9) are further connected to the upper control arm (1) and the lower control arm (2) by knuckle bearings, respectively.

6. The FSAE racing double wishbone suspension anti-roll device of claim 5, characterized in that the upper control arm (1), lower control arm (2), torsion bar spring (6), shock absorber (10) are all connected to the frame by frame fixing tab (7).

Images