Vehicle chassis angle regulator for racing car
By introducing a telescopic damping spring structure into the racing chassis suspension system, fixed to the chassis straight arm or triangle arm, the problem of body roll when the car is cornered is solved, and the vehicle's handling stability and driving quality are improved.
Patent Information
- Application Number
- CN202420509919.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The prior art is difficult to effectively reduce the body roll when a car turns, and the connecting force of the straight arm and triangular arm of the chassis is insufficient, which affects the handling stability of the vehicle.
Design a racing vehicle chassis angle adjuster, by fixing one end of the damping spring on the chassis suspension straight arm or triangle arm, and the other end is fixed to other fixing points of the frame near the chassis H arm or suspension straight arm triangular arm, using Telescopic structure dynamic damping is used to reduce body roll and improve linearity of straight-line driving.
The connection damping between the chassis straight arm or triangle arm and the body is effectively increased, which reduces the body roll, improves the stability and driving quality of the vehicle, and ensures that the body roll is controlled within a controllable range when curved at high speeds.
Smart Images
Figure CN222157124U_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of automobile chassis, and in particular relates to a chassis angle adjuster for a racing car that effectively reduces the body roll when the racing car is turning and improves the straight-line driving quality. Background Art
[0002] The chassis anti-roll bar is an important part of the automobile suspension system. The anti-roll bar is also called the lateral stabilizer bar. It has a great influence on the car's handling, especially when going through a bend. The function of the anti-roll bar is to use the rebound force generated by the twisting of the bar body to suppress the body roll. However, in the modified vehicles used for competition, some modified vehicles have cancelled the chassis anti-roll bar and replaced it with a dedicated chassis kit in order to achieve their special purpose of racing. After the anti-roll bar is cancelled, the anti-roll function can only be taken care of by the chassis kit, such as using a hardened shock absorber, shock absorber spring, chassis straight arm with smaller gap, triangle arm and fisheye connection, but this involves strengthening the connection point, and cannot provide a stronger connection force, and cannot fundamentally solve the vehicle roll caused by the up and down movement of the chassis straight arm and triangle arm when the vehicle is turning. Therefore, it is necessary to provide a stronger chassis connection force for the chassis straight arm and triangle arm of the racing vehicle and reduce the body roll. Summary of the invention
[0003] In view of the deficiencies and gaps in the prior art, the present invention is no longer confined to the continuous strengthening of the connection points between the chassis straight arm or triangle arm and the frame in the prior art, but innovatively fixes one end of the chassis angle adjuster on the automobile chassis suspension straight arm or triangle arm, and the other end is fixed on the chassis H arm or other fixed points of the frame near the suspension straight arm triangle arm, so as to achieve the purpose of reducing the angle change when the vehicle body moves. The present invention provides a vehicle angle adjuster for racing cars and a connection method thereof, and the damper can adjust the dynamic damping by telescoping. One end of the chassis angle adjuster is fixed on the automobile chassis suspension straight arm or triangle arm, and the other end is fixed on the chassis H arm or other fixed points of the frame near the suspension straight arm triangle arm. The inner diameter of the fixing hoop is circular or rectangular or customized according to the special shape of the connection point, so as to achieve the purpose of reducing the roll of the vehicle when cornering, and at the same time improve the linearity of the vehicle when driving in a straight line.
[0004] In order to achieve the above goals, we adopt the following technical solutions.
[0005] A vehicle angle chassis adjuster for racing cars comprises a damping spring, a left-end fixing hoop and a right-end fixing hoop, wherein the left-end fixing hoop on the left-end fixing hoop is bolted to the left-end fixing ring of the damping spring, and the right-end fixing hoop on the right-end fixing hoop is bolted to the right-end fixing ring of the damping spring. After the damping spring is connected to the fixing hoops at both ends, a telescopic structure is formed.
[0006] Preferably, the damping spring includes three settings, a two-end neck spring, a middle neck spring and a single-side neck spring. The length of the spring is between 3 mm and 550 mm, the wire diameter is in the range of 0.1 mm to 20 mm, and the inner diameter is in the range of 2 mm to 100 mm. The ratio of different spring wire necks a and c to the coil is designed to increase the straight line a and c of the spring as much as possible, reduce the ratio of the coil, and increase the wire diameter of the coil. The telescopic structure composed of the fixing hoops at both ends and the damping spring increases damping when stretched and returns to the initial position when contracted.
[0007] Preferably, the left-end fixing hoop and the right-end fixing hoop are annular or U-shaped fixing hoops or straight-through fixers, the radius of the annular hoop is between 2 mm and 80 mm, the U-shaped fixing hoop is between 2 mm and 150 mm, the width is between 5 mm and 150 mm, and the diameter of the straight-through fixer is between 2 mm and 20 mm. One end of the chassis angle adjuster is fixed to the straight arm or triangular arm of the automobile chassis suspension, and the other end is fixed to the chassis H arm or to other fixed points of the frame near the straight arm triangular arm of the suspension. The inner diameter of the fixing hoop is circular or rectangular or customized according to the special shape of the connection point.
[0008] In addition, the proportion of the length of the middle spring coil portion of the two-end neck spring to the total length of the spring is not less than 80%, the proportion of the length of the middle spring coil portion of the middle neck spring to the total length of the spring is not higher than 80% (inclusive) and not lower than 40% (inclusive), and the proportion of the length of the single-side spring coil portion of the single-side neck spring to the total length of the spring is not higher than 40%.
[0009] The above technical solution has the following beneficial effects:
[0010] Our technical solution dynamically strengthens the connection damping between the straight arm or triangle arm and the vehicle body, increases the connection strength, alleviates the body roll caused by the angle change and excessive change of the chassis straight arm or triangle arm when the car is turning, and generally increases the stability of the straight arm or triangle arm during movement. The stretching structure of the spring strengthens the connection strength between the straight arm or triangle arm and the suspension. When the vehicle body rolls, the spring structure on one side becomes longer and the damping becomes larger, achieving the effect of reducing the angle change of the straight arm or triangle arm. When the vehicle body returns to the correct position, it returns to the set initial position due to the elastic properties of the structure.
[0011] The design of directly connecting the left-end fixing hoop and the right-end fixing hoop to the damping spring not only simplifies the steps, but also reduces the weight of the entire regulator, thereby minimizing the impact of the weight on the chassis when the regulator moves.
[0012] Use two-end neck springs, middle neck springs and single-side neck springs, and design different ratios of spring line necks a and c to coils. Increase the straight line a and c of the spring as much as possible, reduce the ratio of the coil, and increase the wire diameter of the coil. This can not only ensure the damping of the spring, but also reduce the weight of the spring, reduce the vibration of the spring caused by the movement of the car, make the spring run more stably, and the car run more linearly.
[0013] The angle change of the straight arm or triangular arm of the automobile chassis includes the angle change of the straight arm or triangular arm when the vehicle rolls and the vibration amplitude change of the straight arm or triangular arm when the vehicle moves in a straight line. The chassis angle adjuster can effectively reduce the angle change of the straight arm or triangular arm when the vehicle rolls and the vibration amplitude of the straight arm or triangular arm when the vehicle moves in a straight line, thereby improving the driving quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram showing the structure of a chassis angle adjuster for a racing vehicle without being installed on the vehicle.
[0015] Figure 2 It is a schematic diagram showing the structure of a chassis angle adjuster for a racing vehicle. The slightly stretched state of the vehicle when it is stationary after installation.
[0016] Figure 3 This is a schematic diagram showing the plan view of the left end fixing hoop.
[0017] Figure 4 This is a schematic diagram showing the plan view of the right end fixing hoop
[0018] Figure 5 This is a schematic diagram showing a two-end neck spring.
[0019] Figure 6 This is a schematic diagram showing the middle neck spring.
[0020] Figure 7 It is a schematic representation of a unilateral neck spring diagram
[0021] Figure 8 is a schematic representation of a straight-through fixture diagram
[0022] Fig. 9 It is a schematic representation of the total length of the spring. b is the length of the spring from the left end point to the right end point.
[0023] The parts in the figure are: 1 left end fixing hoop 3 damping spring 4 right end fixing hoop 5 right end spring coil 6 left end spring coil 7 right end fixing hoop bolt 8 left end fixing hoop bolt a is the distance between the spring damping coil and the fixing hoop
[0024] Left end fixing hoop Right end fixing hoop Two end neck springs Middle neck spring Single side neck spring Right end fixing hoop bolt Left end fixing hoop bolt Right end spring coil Left end spring coil These names are just for illustration to distinguish the names, not professional terms, and have no other meanings
[0025] Common spring materials include carbon spring steel, alloy spring steel and non-ferrous metal alloys. Implementation
[0026] The following is an explanation of the implementation of the present invention. In addition, in each of the drawings, the scale of the drawings is sometimes enlarged for the convenience of explanation and is different from the actual scale. The material of the fixing hoop is a common metal in the art.
[0027] 1. A vehicle angle chassis adjuster for racing, comprising a damping spring, a left end fixing hoop and a right end fixing hoop, wherein the left end fixing hoop on the left end fixing hoop is bolted to the left end fixing ring of the damping spring, and the right end fixing hoop on the right end fixing hoop is bolted to the right end fixing ring of the damping spring. After the damping spring is connected to the fixing hoops at both ends, it is a telescopic structure. The length of the spring is between 3 mm and 550 mm, the wire diameter is in the range of 0.1 mm to 20 mm, and the inner diameter is in the range of 2 mm to 100 mm. The radius of the circle of the fixing hoops at both ends is between 2 mm and 80 mm, the U-shaped fixing hoop is between 2 mm and 150 mm, and the width is between 5 mm and 150 mm. The diameter of the straight-through fixture is between 2 mm and 20 mm. In addition, the length of the middle spring coil part of the two-end neck spring accounts for no less than 80% of the total length of the spring, the length of the middle spring coil part of the middle neck spring accounts for no more than 80% (inclusive) and no less than 40% (inclusive) of the total length of the spring, and the length of the single-side spring coil part of the single-side neck spring accounts for no more than 40% of the total length of the spring.
[0028] The wire diameter of the two-end neck spring is 1.5 mm, the length is 105 mm, the inner diameter of the whole spring is 18 mm, the length of the spring straight neck a and c parts is 20 mm, the inner diameter of the spring coils at both ends is 10 mm, and the material is spring steel. The inner diameter of the left end fixing hoop is 22 mm, the outer diameter is 45 mm, the thickness is 20 mm, and the material is aluminum alloy. The other end is a straight-through fixture with a diameter of 8 mm. The 22 mm port of this damper fixing hoop is set on the chassis triangle arm of the car, and the 8 mm port of the straight-through fixture is fixed to the fixed point above the frame triangle arm.
[0029] 2. A vehicle angle chassis adjuster for racing, comprising a damping spring, a left end fixing hoop and a right end fixing hoop, wherein the left end fixing hoop on the left end fixing hoop is bolted to the left end fixing ring of the damping spring, and the right end fixing hoop on the right end fixing hoop is bolted to the right end fixing ring of the damping spring. After the damping spring is connected to the fixing hoops at both ends, it is a telescopic structure. The wire diameter of the middle neck spring is 2.2 mm, the length is 108 mm, the inner diameter of the whole spring is 22 mm, and the straight neck a and c parts of the spring are 60 mm long and made of spring steel. The inner diameter of the left end fixing hoop is 35 mm, the outer diameter is 60 mm, the thickness is 25 mm, and the material is aluminum. The right end is a U-shaped fixing hoop, 90 mm long and 60 mm wide. The 35 mm port of the damper fixing hoop is mounted on the lower straight arm of the car, and the U-shaped fixing hoop is fixed to the fixed point above the straight arm of the frame.
[0030] 3. The wire diameter of the single-side neck spring is 2.0 mm, the total length is 100 mm, the inner diameter of the whole spring is 16 mm, the length of the spring straight neck a and c parts is 80 mm, the inner diameter of the spring coils at both ends is 10 mm, and the material is spring steel. The inner diameter of the left end fixing hoop is 22 mm, the outer diameter is 45 mm, the thickness is 20 mm, and the material is made of aluminum alloy. The other end is a straight-through fixture with a diameter of 8 mm. The 22 mm port of this damper fixing hoop is set on the chassis triangle arm of the car, and the 8 mm port of the straight-through fixture is fixed to the fixed point above the frame triangle arm.
[0031] 4. The wire diameter of the two-end neck spring is 10 mm, the total length is 300 mm, the inner diameter of the whole spring is 18 mm, the length of the spring straight neck a and c parts is 50 mm, the inner diameter of the spring coil at both ends is 10 mm, and the material is spring steel. The inner diameter of the left end fixing hoop is 50 mm, the thickness is 20 mm, and the material is made of aluminum alloy. The other end is a straight-through fixture with a diameter of 20 mm. The 50 mm port of this damper fixing hoop is set on the chassis triangle arm of the car, and the 20 mm port of the straight-through fixture is fixed to the fixed point above the frame triangle arm.
[0032] 5. The wire diameter of the two-end neck spring is 0.5 mm, the total length is 105 mm, the inner diameter of the whole spring is 10 mm, the length of the a and c parts on both sides of the spring straight neck is 20 mm, the inner diameter of the spring coil at both ends is 10 mm, and the material is spring steel. The inner diameter of the left end fixing hoop is 23 mm, the thickness is 20 mm, and the material is made of aluminum alloy. The other end is a straight-through fixture with a diameter of 6 mm. The 23 mm port of this damper fixing hoop is set on the chassis triangle arm of the car, and the 6 mm port of the straight-through fixture is fixed to the fixed point above the frame triangle arm.
[0033] 6. Car elk test to verify the function of chassis angle adjuster. Take the modified Nissan S15 model for racing as an example, install 2JZ engine, large turbine, 350z gearbox, chassis install large angle competition kit, modified spring, modified shock absorber core. When our angle adjuster is not installed, first change the line test at a speed of 75 kilometers per hour. The front of the car is relatively stable, the body roll is not serious, the front of the car is relatively stable when swinging, the front of the car is not brought to the left cone barrel, and the rear of the car slides obviously. Then increase the cornering speed to 80 kilometers per hour. After increasing the speed, although the front of the car rolls more seriously than the rear of the car, the vehicle will swing when exiting the corner, but it can still meet the cornering standard. Now it is still the Nissan S15 model, but the chassis angle adjuster described in the claim is installed on the double-sided suspension, with a spring wire diameter of 1.5 mm, an inner diameter of 16 mm, and a spring length of 150 mm. It first passes at a speed of 75 kilometers per hour to meet the cornering standard, and the entire body roll is not very serious. The speed is increased to 80 kilometers per hour, and the body rolls a certain amount, but it meets the cornering standard, and the swing amplitude of the front of the car is very small. The speed is increased to 90 kilometers per hour, meeting the cornering standard, and the body does not have a serious roll, and the swing amplitude of the front of the car is controllable. This shows that under the setting of this chassis angle adjuster installed on the vehicle, the strengthening effect on the front suspension of the chassis is obvious. After the before and after comparison, it is shown that our technical solution, the racing chassis angle adjuster, has a significant inhibitory effect on the change of the body roll angle, and the vehicle roll is significantly suppressed, which can improve the vehicle's racing performance.
[0034] Our technology's telescopic structure combining damping spring and fixing hoop can effectively reduce the angle change and vibration change of the chassis straight arm triangle arm by directly connecting the fixing point of the racing chassis straight arm triangle arm and the frame, thereby achieving the purpose of reducing the body roll of the sports vehicle and improving the straight-line driving quality.
[0035] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of this technical solution, and the specific data given are only the preferred embodiment of the technical solution. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of this technical solution shall fall within the protection scope of this technical solution.
Claims
1. A chassis angle adjuster for a racing vehicle, characterized by: The invention comprises a damping spring, a left-end fixing hoop and a right-end fixing hoop; wherein a left-end fixing hoop bolt (8) on the left-end fixing hoop (1) is connected to a left-end fixing ring (6) of the damping spring, and a right-end fixing hoop bolt (7) on the right-end fixing hoop (4) is connected to a right-end fixing ring (5) of the damping spring; and the damping spring (3) forms a telescopic structure after being connected to the fixing hoops at both ends.
2. The chassis angle adjuster for a racing vehicle according to claim 1, characterized in that: The damping spring includes three settings, a two-end neck spring, a middle neck spring and a single-side neck spring. The length of the spring is between 3 mm and 550 mm, the wire diameter is in the range of 0.1 mm to 20 mm, and the inner diameter is in the range of 2 mm to 100 mm. The ratio of different spring wire necks a and c to the coil is designed to increase the straight line a and c of the spring as much as possible, reduce the ratio of the coil, and increase the wire diameter of the coil. The telescopic structure composed of the fixing hoops at both ends and the damping spring increases damping when stretched and returns to the initial position when contracted.
3. The chassis angle adjuster for a racing vehicle according to claim 1, characterized in that: The left-end fixing hoop and the right-end fixing hoop are annular or U-shaped fixing hoops or straight-through fixers. The radius of the annular hoop is between 2 mm and 80 mm, the radius of the U-shaped fixing hoop is between 2 mm and 150 mm, the width is between 5 mm and 150 mm, and the diameter of the straight-through fixer is between 2 mm and 20 mm. One end of the chassis angle adjuster is fixed on the straight arm or triangular arm of the automobile chassis suspension, and the other end is fixed on the chassis H arm or on the frame fixing point near the suspension straight arm triangular arm. The inner diameter of the fixing hoop is circular or rectangular or customized according to the special shape of the connection point.