Vehicle chassis angle regulator for racing car

Abstract

The utility model particularly relates to a vehicle chassis angle regulator for a racing car, which can effectively reduce car body roll when the racing car turns and improve the linear driving quality. The chassis angle regulator comprises a spring fixing rod, a damping spring, a left end fixing hoop and a right end fixing hoop. According to the adjustor, dynamic damping is adjusted in a telescopic mode, one end of the chassis angle adjustor is fixed to a suspension straight arm or a triangular arm of an automobile chassis, the other end of the chassis angle adjustor is fixed to a chassis H arm or a frame fixing point close to the suspension straight arm or the triangular arm, the connecting force of the chassis H arm and the frame fixing point is improved, and the purpose of reducing side tipping when an automobile turns is achieved. And meanwhile, the linearity of the vehicle during straight driving is improved.

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 point 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 improve their connection force and 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 telescopic adjustment. 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 chassis angle adjuster for racing cars comprises a spring fixing rod, a damping spring, a left-end fixing hoop and a right-end fixing hoop; wherein the left-end fixing hoop is connected to the outer cylinder connecting hole of the spring fixing rod by a left-end fixing hoop bolt, and the right-end fixing hoop is connected to the inner rod connecting hole of the spring fixing rod by a right-end fixing hoop bolt, the left-end spring fixing hook of the damping spring is buckled in the left-end spring hook fixing groove, and the right-end spring fixing hook is buckled in the right-end spring hook fixing groove, the spring fixing rod comprises an outer cylinder and an inner rod, and is a composite telescopic structure with the damping spring and is connected by a spring fixing hook.

[0006] Preferably, the spring fixing rod is a low damping rod, which is divided into an outer tube and an inner rod. The starting length of the spring fixing rod is between 5 mm and 550 mm, and the fully stretched length is between 10 mm and 1200 mm. The outer tube is fixed and the inner rod is inside the outer tube and sealed with a sealing ring. The spring fixing rod fixes the spring and limits.

[0007] Preferably, the damping spring includes three settings, a two-end neck spring, a middle neck spring and a single-side neck spring. The damping spring wire diameter is between 0.2 mm and 20 mm, the inner diameter is between 5 mm and 100 mm, and the length is between 5 mm and 500 mm. The damping spring is sleeved outside the spring fixing rod and has a composite telescopic structure with the spring fixing rod. The damping is increased when stretched, and returns to the initial position together with the inner rod of the spring fixing rod when contracted.

[0008] 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 5 mm and 80 mm, the length of the U-shaped fixing hoop is between 5 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 40 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.

[0009] Preferably, when the length of the inner rod of the spring fixing rod of the composite structure of the spring and the spring fixing rod in parallel is relatively small, when the inner rod of the spring fixing rod is pulled out, the inner rod will be unidirectionally clamped and limited by the outer rod sealing ring, and the entire damper becomes a hard connection.

[0010] Preferably, another assembly structure of the damping spring and the spring fixing rod is that the spring fixing rod is outside and the damping spring is inside the spring fixing tube. One end of the damping spring is fixed to the closed end inside the outer tube of the spring fixing rod, and the other end is fixed to the inner rod of the spring fixing rod inserted into the outer tube end, and is sealed and fixed with a sealing ring.

[0011] 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%.

[0012] The above technical solution has the following beneficial effects:

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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

[0017] Figure 1 It is a schematic diagram showing the structure of a new type of anti-roll bar damper for automobiles without being installed on the vehicle.

[0018] Figure 2 It is a schematic diagram showing the structure of a new type of anti-roll bar damper for automobiles. It shows the slightly stretched state of the vehicle when it is stationary after installation.

[0019] Figure 3 This is a schematic diagram showing the outer cylinder of the spring fixing rod.

[0020] Figure 4This is a schematic diagram showing the spring fixing rod inner rod diagram

[0021] Figure 5 This is a schematic diagram showing the plan view of the left end fixing hoop.

[0022] Figure 6 This is a schematic diagram showing the plan view of the right end fixing hoop

[0023] Figure 7 This is a schematic diagram showing a two-end neck spring.

[0024] Figure 8 This is a schematic diagram showing the middle neck spring.

[0025] Fig. 9 It is a schematic representation of a unilateral neck spring diagram

[0026] Fig.10 is a schematic representation of a straight-through fixture diagram

[0027] Fig.11 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.

[0028] The parts in the figure are 1 damping spring 2 left end fixing hoop 3 spring fixing rod outer tube 4 right end fixing hoop bolt 5 left end fixing hoop bolt 6 spring fixing rod inner rod 7 left end spring fixing hook 8 right end spring fixing hook 9 spring fixing rod inner rod connecting hole 11 right end spring hook fixing groove 12 right end fixing hoop 13 left end spring hook fixing groove 14 spring fixing rod outer tube connecting hole a is the distance between the spring coil and the spring fixing hook left end fixing hoop right end fixing hoop two end neck spring middle neck spring one-side neck spring right end fixing hoop bolt left end fixing hoop bolt spring fixing rod inner rod left end spring fixing hook right end spring fixing hook spring fixing rod inner rod connecting hole right end spring hook fixing groove right end fixing hoop left end spring hook fixing groove spring fixing rod outer tube connecting hole These names are just for illustration to distinguish the names, not professional terms, and have no other meanings. Common spring materials include carbon spring steel, alloy spring steel and non-ferrous metal alloys DETAILED DESCRIPTION

[0029] 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.

[0030] 1. A chassis angle adjuster for a racing vehicle, comprising a spring fixing rod, a damping spring, a left-end fixing hoop and a right-end fixing hoop, wherein the left-end fixing hoop is connected to the outer tube connection hole of the spring fixing rod by bolts, and the right-end fixing hoop is connected to the inner rod connection hole of the spring fixing rod by bolts, the left-end spring fixing hook of the damping spring is buckled in the left-end spring hook fixing groove, and the right-end spring fixing hook is buckled in the right-end spring hook fixing groove, the spring fixing rod comprises an outer tube and an inner rod, and is a composite telescopic structure with the damping spring, and is connected with a spring fixing hook. The metal spring wire diameter is between 0.2 mm and 20 mm, the inner diameter is between 5 mm and 100 mm, and the length is between 5 mm and 500 mm. The starting length of the spring fixing rod is between 5 mm and 550 mm, and the fully stretched length is between 10 mm and 1200 mm. The radius of the fixing hoop circle is between 5 mm and 80 mm, the U-shaped length is between 5 mm and 150 mm, the width is between 5 mm and 200 mm, and the diameter of the straight-through fixer is between 2 mm and 40 mm. 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%.

[0031] 2. The outer tube of the spring fixing rod is 72 mm long and 15 mm in diameter. The inner rod of the middle spring fixing rod is 40 mm long and 6 mm in diameter. It is made of aluminum alloy and fixed to the outer tube with a sealing ring. The wire diameter of the two end neck springs is 1.5 mm. The straight neck a and c parts of the spring are 10 mm long. The total length of the spring is 70 mm. The inner diameter of the entire spring is 18 mm. The material is spring steel. The damping spring is fixed in the fixing grooves at both ends of the outer tube and the inner rod of the spring fixing rod. The inner diameter of the left end fixing hoop is 22 mm, the outer diameter is 45 mm, and the thickness is 20 mm. It is made of aluminum alloy. The right end fixing hoop is a straight-through fixer with a diameter of 10 mm and is made of stainless steel. The 22 mm port of this damper fixing hoop is set on the anti-chassis triangle arm of the car, and the 10 mm port of the fixing hoop is set on the frame fixing point.

[0032] 3. The outer tube of the spring fixing rod is 300 mm long and 30 mm in diameter. The inner rod of the middle spring fixing rod is 200 mm long and 15 mm in diameter. It is made of stainless steel and sealed with a sealing ring. The wire diameter of the two end neck springs is 5 mm and the total length is 400 mm. The length of the a and c parts on both sides of the spring straight neck is 30 mm. The inner diameter of the entire spring is 40 mm and the material is manganese steel. The damping spring is fixed in the fixing grooves at both ends of the outer tube and the inner rod of the spring fixing rod. The inner diameter of the left end fixing hoop is 80 mm and the thickness is 20 mm. It is made of aluminum alloy. The right end fixing hoop is a straight-through fixer with a diameter of 30 mm and is made of stainless steel. The 80 mm port of this damper fixing hoop is mounted on the lower straight arm of the racing car, and the 30 mm port of the fixing hoop is mounted on the frame fixing point above the lower straight arm.

[0033] 4. The outer tube of the spring fixing rod is 45 mm long and 10 mm in diameter. The inner rod of the middle spring fixing rod is 35 mm long and 6 mm in diameter. It is made of carbon fiber and fixed to the outer tube with a sealing ring. The wire diameter of the two end neck springs is 0.5 mm and the total length is 41 mm. The a and c parts on both sides of the spring straight neck are 8 mm long. The inner diameter of the entire spring is 20 mm and the material is spring steel. The damping spring is fixed in the fixing grooves at both ends of the outer tube and the inner rod of the spring fixing rod. The inner diameter of the left end fixing hoop is 23 mm and the thickness is 20 mm. It is made of aluminum alloy. The right end fixing hoop is a U-shaped fixing hoop, 150 mm long and 8 mm wide. It is made of stainless steel. The 23 mm port of this damper fixing hoop is mounted on the car triangle arm, and the U-shaped fixing hoop port is mounted on the frame fixing point above the triangle arm.

[0034] 5. Another assembly structure of the damping spring and the spring fixing rod is that the spring fixing rod is outside and the damping spring is inside the spring fixing tube. The outer tube is connected to the left end fixing hoop, and the inner rod is connected to the right end fixing hoop, which is made of aluminum alloy. One end of the damping spring is fixed to the closed end inside the outer tube of the spring fixing rod, and the other end is fixed to the end of the inner rod of the spring fixing rod inserted into the outer tube. When static, the inner rod is pulled out of the outer tube by one-third. The outer tube has a diameter of 30 mm and a length of 150 mm. The inner rod has a diameter of 8 mm and a length of 80 mm. It is sealed and fixed with a sealing ring. The wire diameter of the middle neck spring is 0.6 mm, the diameter is 20 mm, and the length is 80 mm. The material is spring steel. The inner diameter of the left end fixing hoop is 23 mm and it is fixed on the car triangular arm. The right end U-shaped fixing hoop is 15 mm long and 8 mm wide and is fixed on the fixed point above the triangular arm.

[0035] 6 When the length of the inner rod of the spring fixing rod of the composite structure of the spring and the spring fixing rod in parallel is relatively small, the inner rod of the spring fixing rod is pulled out, and the inner rod will be unidirectionally clamped and limited by the outer rod sealing ring, and the entire damper becomes a hard connection. The outer tube of the spring fixing rod is 102 mm long and 15 mm in diameter. The inner rod of the middle spring fixing rod is 40 mm long and 6 mm in diameter. It is made of aluminum alloy and is fixed to the outer tube with a sealing ring. The wire diameter of the single-side neck spring is 2.5 mm, the total length of the spring is 120 mm, the straight neck a and c parts of the spring are 100 mm long, the inner diameter of the entire spring is 18 mm, and the material is spring steel. The spring coil is fixed on one side of the outer tube of the spring fixing rod. The damping spring is fixed in the fixing grooves at both ends of the outer tube and the inner rod of the spring fixing rod. The inner diameter of the left end fixing hoop is 15 mm, the outer diameter is 45 mm, the thickness is 20 mm, and the material is made of aluminum alloy. The right end fixing hoop is a straight-through fixing device with a diameter of 8 mm and a material of stainless steel. The 15 mm port of this damper fixing hoop is mounted on the chassis triangle arm, and the 88 mm port of the fixing hoop is mounted on the oblique upper fixing point of the frame.

[0036] 7. The outer tube of the spring fixing rod is 100 mm long and 16 mm in diameter. The inner rod of the middle spring fixing rod is 60 mm long and 8 mm in diameter. It is made of aluminum alloy and fixed to the outer tube with a sealing ring. The wire diameter of the middle neck spring is 1.5 mm. The straight neck a and c parts of the spring are 40 mm long. The total length of the spring is 80 mm. The inner diameter of the entire spring is 18 mm. The material is spring steel. The damping spring is fixed in the fixing grooves at both ends of the outer tube and the inner rod of the spring fixing rod. The inner diameter of the left end fixing hoop is 22 mm, the outer diameter is 45 mm, and the thickness is 20 mm. It is made of aluminum alloy. The right end fixing hoop is a straight-through fixer with a diameter of 20 mm and is made of stainless steel. The 22 mm port of this damper fixing hoop is mounted on the lower straight arm of the racing car, and the 20 mm port of the fixing hoop is mounted on the fixed point above the lower straight arm.

[0037] 8. The outer tube of the spring fixing rod is 105 mm long and 16 mm in diameter. The inner rod of the middle spring fixing rod is 60 mm long and 8 mm in diameter. It is made of aluminum alloy and fixed to the outer tube with a sealing ring. The wire diameter of the single-side neck spring is 1.6 mm. The straight neck a and c parts of the spring are 65 mm long. The total length of the spring is 80 mm. The inner diameter of the entire spring is 19 mm. The material is spring steel. The part with the coil of the single-side neck spring should be sleeved on one side of the outer tube of the spring fixing rod. The damping spring is fixed in the fixing grooves at both ends of the outer tube and the inner rod of the spring fixing rod. 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 right end fixing hoop is a straight-through fixer with a diameter of 40 mm and a material of stainless steel. The 22 mm port of this damper fixing hoop is set on the racing triangle arm, and the 40 mm port of the fixing hoop is set at the fixing point above the triangle arm.

[0038] 9. 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.

[0039] Our technology's composite telescopic structure of damping spring and spring fixing rod can effectively reduce the angle change and vibration change of the chassis straight arm triangle arm by 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.

[0040] 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 spring fixing rod, a damping spring, a left fixing hoop and a right fixing hoop; wherein the left fixing hoop (2) is connected to the spring fixing rod outer cylinder connection hole (14) by a left fixing hoop bolt (5), and the right fixing hoop (12) is connected to the spring fixing rod inner rod connection hole (9) by a right fixing hoop bolt (4); the left spring fixing hook (7) of the damping spring is buckled in the left spring hook fixing groove (13), and the right spring fixing hook (8) is buckled in the right spring hook fixing groove (11); the spring fixing rod comprises an outer cylinder (3) and an inner rod (6), and is a composite telescopic structure with the damping spring (1), and is connected with the spring fixing hook.

2. The chassis angle adjuster for a racing vehicle according to claim 1, characterized in that: The spring fixing rod is a low damping rod, which is divided into an outer tube and an inner rod. The starting length of the spring fixing rod is between 5 mm and 550 mm, and the fully stretched length is between 10 mm and 1200 mm. The outer tube is fixed and the inner rod is inside the outer tube and sealed with a sealing ring. The spring fixing rod fixes the spring and limits.

3. 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 wire diameter of the damping spring is between 0.2 mm and 20 mm, the inner diameter is between 5 mm and 100 mm, and the length is between 5 mm and 500 mm. The damping spring is sleeved outside the spring fixing rod and has a composite telescopic structure with the spring fixing rod. The damping is increased when stretched, and returns to the initial position together with the inner rod of the spring fixing rod when contracted.

4. 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 5 mm and 80 mm, the length of the U-shaped fixing hoop is between 5 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 40 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.

5. The chassis angle adjuster for a racing vehicle according to claim 1, characterized in that: For the angle adjuster, when the length of the inner rod of the spring fixing rod of the composite structure of the spring and the spring fixing rod in parallel is relatively small, when the inner rod of the spring fixing rod is pulled out, the inner rod will be unidirectionally clamped and limited by the outer rod sealing ring, and the entire damper becomes a hard connection.

6. A chassis angle adjuster for a racing vehicle according to claim 1, Its characteristics are: Another assembly structure of the damping spring and the spring fixing rod is that the spring fixing rod is outside and the damping spring is inside the spring fixing tube. One end of the damping spring is fixed to the closed end inside the outer tube of the spring fixing rod, and the other end is fixed to the inner rod of the spring fixing rod inserted into the outer tube end, and is sealed and fixed with a sealing ring.

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