A rotary push type automobile independent suspension

The rotary push independent suspension solves the problems of tire wear and suspension complexity by rotating the swing frame and transmitting force through torsion springs, thereby improving the vehicle's vertical driving and smoothness, reducing costs and space occupancy, and enhancing stability and handling.

CN115230416BActive Publication Date: 2025-09-23刘常珠
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Patent Information

Application Number
CN202210992591.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-18
Publication Date
2025-09-23
Estimated Expiration
2042-08-18

AI Technical Summary

Technical Problem

Existing automobile suspensions cannot keep tires perpendicular to the ground during driving, resulting in severe wear on the inside of the tires. In addition, the suspension structure is complex, costly, and lacks stability and comfort.

Method used

The rotary push-type independent suspension is adopted to limit the vertical movement of the wheel by rotating the swing frame and the wheel driver. The shock absorption mechanism and the torsion spring force transmission method are combined to ensure the vertical state of the wheel. The torsion spring is used instead of the coil spring to reduce space occupation and production costs.

Benefits of technology

Reduce tire wear, improve vehicle smoothness and comfort, reduce suspension costs, enhance stability and handling performance, reduce suspension space occupation, and improve overall vehicle performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of automobile suspension equipment, and discloses a rotary push-type automobile independent suspension, comprising a rotating swing frame, wherein control arms are rotatably provided at the upper and lower ends of the rotating swing frame; a wheel driver and a shock absorbing mechanism connected to the wheel driver are provided in the rotating swing frame; in a working state, the wheel driver is subjected to an external force to move in a vertical direction in the rotating swing frame, and pushes the shock absorbing mechanism to move synchronously; the present invention has a simple structure and stable performance, and can ensure that the tires of the vehicle are perpendicular to the ground when the vehicle is driving, thereby reducing wear on the inner side of the tires and extending the service life of the tires.
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Description

Technical Field

[0001] The present invention relates to the technical field of automobile suspension equipment, in particular to a rotary push type automobile independent suspension. Background Art

[0002] Currently, the automotive suspension systems available on the market include leaf spring non-independent suspension, torsion beam semi-independent suspension, double wishbone independent suspension, multi-link independent suspension, and McPherson strut independent suspension. Each of these suspension systems has its own advantages and disadvantages. Different suspension systems provide varying levels of cushioning, shock absorption, and force transmission, resulting in significantly different vibrations, ride comfort, and handling.

[0003] For example, leaf spring non-independent suspension is generally not installed on family cars and is mainly suitable for trucks, pickup trucks and other models with higher load-bearing capacity. Its advantages are high height and strong load-bearing capacity. Its disadvantages are poor comfort and easy wear.

[0004] Torsion beam semi-independent suspension is mostly used in mid- and low-end models and has greater stability; the disadvantage is that the wheels on both sides are affected by the suspension, resulting in poor comfort.

[0005] The disadvantage of double wishbone independent suspension is that it has a high manufacturing cost and is usually only installed on higher-priced mid-to-high-end models. It is rare to see this type of suspension on ordinary family cars.

[0006] The disadvantages of McPherson independent suspension are weak stability, weak anti-roll ability, low durability, and nodding phenomenon when braking.

[0007] The disadvantages of multi-link independent suspension are higher cost and poor stability.

[0008] However, none of the suspensions mentioned above can keep the tires perpendicular to the ground during movement. When driving, the tires and the ground will form a small figure eight state, causing greater wear on the inner side of the tires. Summary of the Invention

[0009] The purpose of the present invention is to provide a rotary push type automobile independent suspension with a simple structure and stable performance, which can ensure that the tires are perpendicular to the ground when the vehicle is driving, reduce the wear on the inner side of the tires, and extend the service life of the tires.

[0010] The present invention adopts the following technical solutions:

[0011] A rotary push-type independent suspension for an automobile comprises a rotating swing frame, wherein control arms are rotatably provided at both the upper and lower ends of the rotating swing frame; a wheel driver and a shock absorbing mechanism connected to the wheel driver are provided within the rotating swing frame; in a working state, the wheel driver is subjected to an external force to move in a vertical direction within the rotating swing frame, and pushes the shock absorbing mechanism to move synchronously.

[0012] Preferably, the wheel transmission device is provided with a sliding rod at both upper and lower ends, and each of the sliding rods is slidably connected to the rotating frame.

[0013] Preferably, the control arm is rotatably arranged on the rotating frame through a rotating frame rotation controller.

[0014] Preferably, the shock absorbing mechanism includes a pusher hinged on the wheel driver and a torsion spring provided on the rotating frame, wherein the top end of the torsion spring abuts against the pusher and the bottom end abuts against an automatic adjuster provided on the rotating frame.

[0015] Preferably, the pushing member and the torsion spring are provided in two groups and are symmetrically distributed on both sides of the rotating frame.

[0016] Preferably, the pushing member includes a push rod hinged on the wheel driver, the push rod is hinged with a rotating push plate, a support column is protruding from one side of the top of the rotating push plate, and the top of the torsion spring is pressed against the support column; the bottom end of the rotating push plate is hinged on the rotating frame.

[0017] Preferably, the rotary push plate is L-shaped.

[0018] Preferably, the rotating frame includes two upper and lower support plates arranged in parallel, and the two support plates are detachably connected by a support rod; a mounting plate is vertically arranged on the support plate located below; wherein the torsion spring and the automatic adjuster are both arranged on the mounting plate, and the bottom end of the rotating push plate is hinged on the mounting plate.

[0019] Compared with the prior art, the present invention has the following advantages: by limiting the wheel driver to move in the vertical direction, the present invention ensures that the wheel can always remain perpendicular to the ground during operation, reduces the wear between the inner side of the wheel tire and the ground, and extends the service life of the tire.

[0020] Furthermore, by hingedly arranging a push rod and a rotating push rod on the wheel driver to push the torsion spring to deform, the upward force on the wheel driver can be converted into a lateral horizontal thrust, and the horizontal thrust is converted into a downward pressure by pushing the torsion spring, which can quickly reduce the vibration of the frame, thereby effectively improving the smoothness and comfort of the vehicle during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0022] Figure 2 A side view of an embodiment of the present application;

[0023] Figure 3 This is a top view of an embodiment of the present application. DETAILED DESCRIPTION

[0024] The present invention will be described clearly and completely below with reference to the accompanying drawings and embodiments:

[0025] like Figures 1 to 3 As shown, the present invention relates to a rotary push-type independent suspension for automobiles, comprising a rotating rotating frame 1, wherein the upper and lower ends of the rotating rotating frame 1 are provided with a rotating frame rotation controller 2, so that the rotating rotating frame 1 can rotate relative to the control arm 3 during operation; the rotating frame rotation controller 2 is an outer cylindrical shell, and a bearing structure is provided inside; the control arm 3 is provided on one side of the rotating frame rotation controller 2, and the end of the control arm 3 away from the rotating frame rotation controller 2 is connected to the vehicle frame to play the role of transmitting external force to the vehicle body; a wheel driver 4 is provided in the rotating rotating frame 1, and the upper and lower ends of the wheel driver 4 are vertically provided with a The sliding rod 5 slidably connected to the rotating rotating frame 1 can limit the position of the wheel driver 4, making it move vertically up and down, ensuring that the wheel always remains perpendicular to the ground during operation and turning, reducing wear on the inner side of the tire; the vehicle driver is provided with an axle 6 for connecting to the wheel, and a shock-absorbing mechanism connected to the wheel driver 4 is provided on the end of the rotating rotating frame 1 away from the wheel; in the working state, the wheel driver 4 is moved in the vertical direction inside the rotating rotating frame 1 by the external force transmitted by the axle 6, thereby driving the shock-absorbing mechanism to move synchronously, so as to achieve the purpose of alleviating vehicle vibration.

[0026] The shock-absorbing mechanism includes pushers symmetrically hinged on both sides of the wheel driver 4, and torsion springs 7 symmetrically arranged on the rotating frame 1. The top end of each torsion spring 7 extends obliquely upward and abuts on the pusher, and the bottom end abuts on the automatic adjuster 8 arranged on the rotating frame 1. When working, the axle 6 transmits the vibration force transmitted by the wheel to the wheel driver 4. After the wheel driver 4 is subjected to the upward external force transmitted by the axle 6, it moves vertically, driving the pusher to move synchronously, thereby pushing the torsion spring 7 to move, so as to achieve the purpose of alleviating the vibration caused by the vehicle bouncing to the vehicle body and reducing the frequency of the wheel bouncing up and down. number, ensuring the smooth operation of the vehicle; in the present invention, the torsion spring 7 is used to replace the spiral spring used in the traditional automobile suspension, which can reduce the space occupied by the suspension, reduce the overall size of the suspension, reduce the production cost, and improve the convenience of maintenance; and the torsion spring 7 has higher toughness and better strength than the compression spring, so that it can have excellent shock absorption performance; in addition, the torque and rotational force generated by the torsion spring 7 can also automatically adjust the balance of the car during operation, effectively preventing the shaking and excessive shock caused by excessive vibration of the car body, and playing a better protective role for the vehicle's safety system.

[0027] In the present invention, the automatic adjuster 8 is a cylindrical metal structure. Its design not only provides support for the protruding portion of the torsion spring 7 at the bottom, ensuring stability when the top of the torsion spring 7 is pushed by the pusher, but also adjusts the hardness of the torsion spring 7 by adjusting its diameter, enabling better support for the vehicle, suppressing roll in corners, and significantly improving the vehicle's handling performance. It comprehensively addresses the vibrations caused by uneven roads and small bumps during driving. It also absorbs the energy of road impact, reducing the bounce caused by the vehicle passing through a pothole. It can limit wheel bounce to a single occurrence or prevent the vehicle from bouncing during operation. It also maintains the cyclical grip of the wheels and tires. This ensures that the vehicle remains level even when significantly affected by road conditions, allowing it to more effectively adapt to changing road conditions.

[0028] Furthermore, the pushing member includes a push rod 9 hinged on the wheel transmission device 4, and the push rod 9 is hinged with a rotating push plate 10. The rotating push plate 10 is L-shaped, and a support column 11 is protruded from the top of the rotating push plate 10 close to the side of the rotating rotating frame 1, and the top of one end of the torsion spring 7 is pressed against the support column 11; the bottom end of the rotating push plate 10 is hinged on the rotating rotating frame 1; when working, the wheel transmission device 4 drives the push rod 9 to move through the external force transmitted by the wheel, and the push rod 9 pushes the rotating push plate 10 to rotate laterally around the hinge point at the bottom of the rotating push plate 10, and the rotating plate pushes the torsion spring 7 to move downward around the setting point. Then, after the torsion spring 7 is compressed to a certain extent, the wheel is pushed to its original position along the original path through the reverse action force of its own reset, thereby achieving the purpose of vehicle shock absorption. In the present invention, the upward force transmitted from the axle 6 to the wheel actuator 4 is converted into a lateral horizontal thrust, which is then converted into a downward pressure through the rotation of the torsion spring 7. This allows the external force transmitted from the wheel to the vehicle body to be ultimately converted into a downward force, thereby reducing the vibration of the vehicle frame and effectively improving the smoothness and comfort of the vehicle during driving. This force transmission method is simple and direct. In addition, the suspension of the present invention adopts a simple rod design, which allows the suspension to be placed close to the center of the tire, reducing space occupation. At the same time, it can lower the center of gravity of the vehicle body, greatly improving the stability and roll of the vehicle body. In addition, the present invention adopts a force transmission structure that cooperates with the push rod 9 and the rotating push plate 10, which can achieve the full transmission of external force by the suspension, so that the vehicle can provide the best adhesion to the wheel at any time and place during driving, thereby improving the stability of the vehicle body when cornering or on bumpy roads.

[0029] In the present invention, the rotating frame 1 preferably includes two upper and lower support plates 1-1 arranged in parallel, and the two support plates 1-1 are detachably connected by a support rod 1-2; two symmetrically arranged mounting plates 1-3 are vertically arranged on the lower support plate 1-1; wherein each sliding rod 5 is slidably connected to the support plate 1-1 at the corresponding end; each torsion spring 7 and automatic adjuster 8 are arranged on the mounting plate 1-3 at the corresponding end, and the bottom end of each rotating push plate 10 is hinged to the corresponding mounting plate 1-3.

[0030] The present invention not only ensures that the wheels remain perpendicular to the ground during operation by limiting the trajectory of the wheel actuator 4, thus reducing significant wear on the inner side of the tire caused by the ground, but also features a small suspension cross-section, high tensile and torsional strength, omnidirectional force transmission, and maximum motion transmission, resulting in greater stability and superior anti-roll performance. It effectively balances handling and comfort, resolving the mismatch between these two. Furthermore, the independent suspension of the present invention effectively suppresses vehicle roll, providing improved torsional rigidity at high speeds and during cornering, enhancing overall vehicle performance. The suspension can automatically adjust vehicle balance via torsion springs 7, which also provide shock absorption. Using torsion springs 7 as shock absorbers replaces existing coil springs, simplifying the suspension structure. The torsion springs 7 can also replace guide structures, acting as a lateral stabilizer. The arrangement of the torsion springs 7 increases the distance the tire can travel up and down, effectively reducing unsprung mass, further reducing vehicle weight, and improving suspension responsiveness.

Claims

1. A rotary push type independent suspension for automobile, characterized by: The invention comprises a rotating rotating frame, wherein control arms are rotatably provided at the upper and lower ends of the rotating rotating frame; a wheel driver and a shock absorbing mechanism connected to the wheel driver are provided in the rotating rotating frame; the shock absorbing mechanism comprises a pushing member hinged on the wheel driver, and a torsion spring provided on the rotating rotating frame, the top end of the torsion spring abuts against the pushing member, and the bottom end abuts against an automatic adjuster provided on the rotating rotating frame; in a working state, the wheel driver is subjected to an external force to move in a vertical direction in the rotating rotating frame, and drives the shock absorbing mechanism to move synchronously.

2. The rotary push type automobile independent suspension according to claim 1, characterized in that: Sliding rods are provided at the upper and lower ends of the wheel transmission device, and each of the sliding rods is slidably connected to the rotating frame.

3. The rotary push type automobile independent suspension according to claim 1, characterized in that: The control arm is rotatably arranged on the rotating frame through a rotating frame rotation controller.

4. The rotary push type automobile independent suspension according to claim 1, characterized in that: The pushing member and the torsion spring are both provided in two groups and are symmetrically distributed on both sides of the rotating frame.

5. The rotary push type automobile independent suspension according to claim 1, characterized in that: The pushing member includes a push rod hinged on the wheel driver, the push rod is hinged with a rotating push plate, a support column is protruding from one side of the top of the rotating push plate, and the top of the torsion spring is pressed against the support column; the bottom end of the rotating push plate is hinged on the rotating frame.

6. The rotary push type automobile independent suspension according to claim 5, characterized in that: The rotating push plate is L-shaped.

7. The rotary push type automobile independent suspension according to claim 6, characterized in that: The rotating frame includes two upper and lower support plates arranged in parallel, and the two support plates are detachably connected by a support rod; a mounting plate is vertically arranged on the support plate located below; wherein the torsion spring and the automatic adjuster are both arranged on the mounting plate, and the bottom end of the rotating push plate is hinged on the mounting plate.

Citation Information

Patent Citations

  • Sliding pillar type suspension device

    JP2010018209A