CN211808915U - Adjustable stabilizer bar with bidirectional rigidity - Google Patents

Abstract

The utility model belongs to the technical field of automobiles, in particular to an adjustable lateral stabilizer bar with bidirectional rigidity. The stabilizer bar includes a T-bar, an adjustment washer, a stabilizer bar fixing bracket, a deflection bracket, a push/pull rod, a spring, a spring fixing bracket, a triangle arm, a triangle arm fixing bracket, a suspension rod and a virtual tire; On the basis that the stabilizer bar can only provide anti-roll characteristics, it increases the pitching rigidity of the car during acceleration and deceleration, and can be adjusted by adding or removing spacers on the rectangular vertical bar and adjusting the telescopic sleeve of the circular crossbar bracket. Adjustment of stiffness and roll stiffness. On the basis of the characteristics of the stabilizer bar, the structure stabilizer bar takes into account the function of the third spring, partially simplifies the suspension structure, and ensures the proper roll and pitch characteristics under different driving conditions, and improves the wheel adhesion conditions. Make the car have better turning and acceleration performance and improve the handling stability of the car.

Description

An adjustable stabilizer bar with bidirectional stiffness

technical field

The utility model belongs to the technical field of automobiles, in particular to an adjustable lateral stabilizer bar with bidirectional rigidity.

Background technique

In the process of formula car racing, the maneuverability of the car is an important factor that reflects the quality of a car. It affects the driver's driving style and is an important factor in whether the driver can exert the limit of the car. For different competitions, different tracks, and even different drivers, due to different driving styles, the required roll and pitch stiffness are also different, which requires adjusting these parameters according to different conditions, so that the car can give full play to its performance. limit.

As an auxiliary element of the vehicle suspension structure, the stabilizer bar is used to prevent the body from excessively rolling during cornering. However, the traditional structure of the stabilizer bar can only provide a fixed roll stiffness and cannot resist the pitching state of the racing car caused by the acceleration and deceleration of the car. In order to resist the pitching state of the racing car, part of it can be offset by the spring stiffness of the suspension spring itself. pitching, but this effect is difficult to achieve the desired effect, so part of it is through the introduction of the third spring structure. When the car is pitching, the force on the tire can be transmitted to the third through the force transmission mechanism of the suspension. On the spring, the spring is compressed or pulled, which hinders the violent pitching state of the car and improves the anti-pitching ability of the car. Since the pitching state of the car is resisted by the third spring, the rolling state of the car needs to be resisted by the stabilizer bar of the car, which will make the structure of the car more complicated, and there is no way to adjust the car in different conditions. The required pitch and roll stiffness cannot fully exploit the dynamic performance of the car.

SUMMARY OF THE INVENTION

The utility model provides a simple structure, which can take into account the anti-pitch characteristics of the third spring and the anti-roll characteristics of the stabilizer bar, and can adjust the pitch and roll stiffness under different driving conditions. The adjustable lateral stabilizer bar solves the above-mentioned shortcomings of the existing stabilizer bar.

The technical problems of the present utility model are described as follows in conjunction with the accompanying drawings:

An adjustable lateral stabilizer bar with bidirectional stiffness, the stabilizer bar includes a set of T-bars composed of a rectangular vertical bar 12 and a circular cross bar 13, an adjustment washer 11, a pair of stabilizer bar fixing brackets 1, a A set of deflection brackets 2, two push/pull rods 4, a set of springs 5, a set of spring fixing brackets 6, a pair of triangular arms 16, a pair of triangular arm fixing brackets 18, two suspension rods 20 and virtual tires 21; two One end of the suspension rod 20 is respectively connected with the hub of the virtual tire 21, and the other end is connected with the triangular arm 16 through the fourth hinged hole bolt 19; the triangular arm 16 is fixed on the vehicle body by the triangular arm fixing bracket 18, And rotate around the axis of the triangle arm fixing bracket 18; the triangle arm 16 is connected with the suspension spring through the second hinge hole bolt 14 on it; the third hinge hole bolt 15 on the triangle arm 16 is connected to the suspension spring. One end of the push/pull rod 4 on both sides is connected; the other end of the push/pull rod 4 is connected with the deflection bracket 2 through the first hinge hole bolt 3; The sleeves and spring bosses on the two bolts 8 and 9 separate the upper and lower parts by a certain distance and fix them; the rectangular vertical rod 12 passes through the center hole of the deflection bracket 2 and is hinged with one end of the middle spring 5; The other end of the spring 5 is fixed on the vehicle body through the spring fixing bracket 6; the rectangular vertical rod 12 is provided with two bolt holes for fixing the adjusting washer 11 for adjusting the torsional stiffness; the rectangular vertical rod 12 and the The center hole of the cross bar 13 is matched; the two ends of the cross bar 13 are connected with the stabilizer bar fixing bracket 1 ; the stabilizer bar fixing bracket 1 is fixed on the vehicle body by bolts.

The rectangular vertical rod 12 is provided with a section of diamond-shaped sheet-like structure 12.1 which is connected to the lower piece of the deflection bracket 2 to transmit the rotation and longitudinal displacement of the deflection support 2 to the rectangular vertical rod 12; the lower end of the rectangular vertical rod 12 is a section of square The boss is embedded in the central hole of the circular crossbar 13; the circular crossbar 13 is circular in cross section, and both ends are connected with the spline grooves of the stabilizer bar fixing bracket 1 through splines.

The beneficial effects of the present utility model are:

An adjustable lateral stabilizer bar with bidirectional stiffness designed by the utility model can bear both the anti-pitch characteristics of the third spring and the anti-roll characteristics of the stabilizer bar, and can also be properly adjusted under different driving conditions. Adjust the anti-pitch and roll characteristics of the car to give full play to the dynamic performance of the car. It not only simplifies the structure, makes the structure more compact, reduces the weight, is easy to adjust, but also can ensure the continuous output of power.

Description of drawings

Fig. 1 is the top view schematic diagram of the utility model;

2 is a schematic front view of the utility model;

Fig. 3 is a sectional view at A-A in Fig. 1;

Fig. 4 is the left side view schematic diagram of the utility model;

Fig. 5 is the axonometric schematic diagram of the utility model;

Fig. 6 is the motion trajectory diagram when the utility model does pitch motion;

Fig. 7 is the motion trajectory diagram when the utility model does roll motion;

Fig. 8 is the state diagram when the rigidity of the utility model is maximum;

FIG. 9 is a state diagram when the stiffness of the utility model is the smallest.

In the figure: 1. Stabilizing bar fixing bracket; 2. Deflection bracket; 3. The first hinged hole bolt; 4. Push/pull rod; 5. Spring; 6. Spring fixing bracket; 7. Spring fixing bolt; 8. The first Bolt; 9. Second bolt; 10. Third bolt; 11. Adjusting gasket; 12. Rectangular vertical rod; 12.1. Diamond-shaped sheet structure; 13. Circular cross-bar; 14. Second hinged hole bolt; 15 , the third hinged hole bolt; 16, the triangle arm; 17, the triangle arm fixing nut; 18, the triangle arm fixing bracket; 19, the fourth hinged hole bolt; 20, the suspension rod; 21, the virtual tire.

Detailed ways

1-5, an adjustable lateral stabilizer bar with bidirectional stiffness, the stabilizer bar includes a set of T-bars composed of a rectangular vertical bar 12 and a circular cross bar 13, an adjustment washer 11, a pair of stabilizer Rod fixing bracket 1, a set of deflection brackets 2, two push/pull rods 4, a set of springs 5, a set of spring fixing brackets 6, a pair of triangular arms 16, a pair of triangular arm fixing brackets 18, two suspension rods 20 and virtual tires 21.

One end of the two suspension rods 20 is respectively connected with the hub of the virtual tire 21, and the other end is connected with the triangular arm 16 through the fourth hinged hole bolt 19; the triangular arm 16 is fixed by the triangular arm fixing bracket 18 and the triangular arm The nut 17 is fixed on the body and rotates around the axis of the triangular arm fixing bracket 18; the triangular arm 16 is connected with the suspension spring through the second hinge hole bolt 14 on it; Three hinge hole bolts 15 are connected with one end of the push/pull rod 4 on both sides; the other end of the push/pull rod 4 is connected with the deflection bracket 2 through the first hinge hole bolt 3; the deflection support 2 is divided into upper and lower Two pieces, and the upper and lower parts are separated by a certain distance and fixed by the sleeves and spring bosses on the first and second bolts 8 and 9; the rectangular vertical rod 12 passes through the center hole of the deflection bracket 2 and is connected to the middle One end of the spring 5 is hinged; the other end of the spring 5 is fixed on the vehicle body through the spring fixing bracket 6; the rectangular vertical rod 12 is provided with a piece of diamond-shaped sheet structure 12.1 connected with the lower piece of the deflection bracket 2 to deflect the deflection The rotation and longitudinal displacement of the bracket 2 are transmitted to the rectangular vertical rod 12 ; the rectangular vertical rod 12 has two bolt holes for fixing the adjusting washer 11 for adjusting the torsional rigidity, and is fixed by the third bolt 10 . The lower end of the rectangular vertical bar 12 is a section of square boss embedded in the central hole of the circular cross bar 13; In the keyway, the bracket 1 of the stabilizer bar can make a certain lateral displacement along the direction of the spline to adjust the length of the torsion bar under force, and finally the bracket 1 of the stabilizer bar is fixed to the vehicle body by bolts.

The working principle of the utility model is:

Referring to FIG. 6, when the racing car is pitching, the left and right wheels move up and down at the same time, for example, the left and right vehicles jump upward at the same time, then the upward jump of the wheel acts on the triangular arm 16 through the suspension rod 20, and the triangular arm 16 fixes the bracket around the triangular arm The axis of 18 rotates, the left triangular arm rotates counterclockwise, and the right triangular arm rotates clockwise, causing the push/pull rods 4 on both sides to simultaneously pull the deflection bracket 2 to move forward. When the spring 5 is compressed, the circular cross bar 13 of the T-bar rotates, resulting in torsional deformation, and then the spring 5 and the circular cross bar 13 react to the wheels, exerting a downward pressure on the wheels on both sides. force, preventing the wheels on both sides from jumping up.

Referring to Figure 7, when the car is rolling, the left and right wheels jump in opposite directions. For example, the left wheel jumps up and the right wheel jumps down. The up jump of the left wheel acts on the left side through the left suspension rod. The triangular arm 16 on the left side rotates counterclockwise around the axis of the triangular arm fixing bracket 18, and the left push/pull rod 4 pulls the deflection bracket 2 to move forward on the left side, and the right wheel jumps through The right suspension rod acts on the right triangular arm 16, the right triangular arm 16 rotates counterclockwise around the axis of the triangular arm fixing bracket 18, and pulls the right side of the deflection bracket 2 backward through the right push/pull rod 4 The movement causes the deflection bracket 2 to rotate clockwise around the axis of the longitudinal rod. At this time, the spring 5 and the circular crossbar 13 do not move, the rectangular vertical rod 12 rotates, and a torsional deformation occurs, and then the torque of the rectangular vertical rod 12 reacts to the two. The side wheels exert an opposite force on each of the wheels on both sides, the left wheel is forced downward, and the right wheel is forced upward, preventing the body from rolling.

Refer to Figure 8 and Figure 9. At the same time, when it is necessary to adjust the pitch and roll stiffness of the racing car, the following methods can be used. Taking increasing the pitch and roll stiffness as an example, in order to increase the pitch stiffness, the stabilizer bar fixing bracket 1 can be The two ends move to increase the torsional stiffness of the lateral torsion bar, thereby increasing the pitch stiffness of the car. The roll stiffness can also be changed by appropriately adjusting the stiffness of the spring 5, but the purpose of the spring 5 is mainly to increase the stability of the structure, and The deflection bracket 2 can be displaced back and forth. In order to increase the roll stiffness, the adjusting shims 11 can be added to the rectangular vertical rod 12 to increase the torsional section coefficient of the rectangular rod, thereby increasing the torsional stiffness of the rectangular vertical rod 12, thereby increasing the rolling stiffness of the racing car.

Claims (2)

1. The adjustable transverse stabilizer bar with the bidirectional rigidity is characterized by comprising a set of T-shaped bars consisting of rectangular vertical bars (12) and circular cross bars (13), an adjusting gasket (11), a pair of stabilizer bar fixing supports (1), a set of deflection supports (2), two push/pull rods (4), a set of springs (5), a set of spring fixing supports (6), a pair of triangular arms (16), a pair of triangular arm fixing supports (18), two suspension bars (20) and a virtual tire (21); one ends of the two suspension rods (20) are respectively connected with a wheel hub of a virtual tire (21), and the other ends of the two suspension rods are connected with the triangular arm (16) through a fourth hinged hole bolt (19); the triangular arm (16) is fixed on the vehicle body through a triangular arm fixing support (18) and rotates around the axis of the triangular arm fixing support (18); the triangular arm (16) is connected with the suspension spring through a second hinged hole bolt (14) on the triangular arm; a third hinged hole bolt (15) on the triangular arm (16) is connected with one end of the push/pull rod (4) at two sides; the other end of the push/pull rod (4) is connected with the deflection bracket (2) through a first hinged hole bolt (3); the deflection bracket (2) is divided into an upper piece and a lower piece, and the upper piece and the lower piece are separated by a certain distance and fixed through sleeves and spring bosses on the first bolt (8) and the second bolt (9); the rectangular vertical rod (12) penetrates through a central hole of the deflection bracket (2) and is hinged with one end of the middle spring (5); the other end of the spring (5) is fixed on the vehicle body through a spring fixing support (6); the rectangular vertical rod (12) is provided with two bolt holes for fixing and adjusting an adjusting gasket (11) for adjusting the torsional rigidity; the rectangular vertical rods (12) are matched with the central holes of the cross rods (13); two ends of the cross rod (13) are connected with the stabilizer bar fixing support (1); the stabilizer bar fixing support (1) is fixed on the vehicle body through bolts.

2. The adjustable stabilizer bar with bidirectional stiffness as recited in claim 1, characterized in that a diamond-shaped sheet structure (12.1) is disposed on the rectangular vertical bar (12) and connected to the lower piece of the deflection bracket (2) to transmit the rotation and longitudinal displacement of the deflection bracket (2) to the rectangular vertical bar (12); the lower end of the rectangular vertical rod (12) is provided with a section of square boss embedded into a central hole of the circular cross rod (13); the cross section of the round cross rod (13) is round, and two ends of the round cross rod are connected with spline grooves of the stabilizer bar fixing support (1) through splines.

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