A suspension structure

Abstract

This utility model relates to the field of unmanned vehicle suspension, and discloses a suspension structure including two trailing arms, which are respectively fixed to the left and right ends of a torsion beam. A first trapezoidal plate is fixed to the top surface of the torsion beam, and a second trapezoidal plate is fixed to the inner wall of the torsion beam. A support plate is fixed to the bottom surface of the second trapezoidal plate, and the bottom surface of the support plate is fixed to the inner wall of the torsion beam. Two connecting plates are fixed to the bottom surface of the second trapezoidal plate, and the bottom surface of the connecting plates is fixed to the inner wall of the torsion beam. In this utility model, the cooperation of the first trapezoidal plate, the second trapezoidal plate, the support plate, and the connecting plates enhances the overall structural strength and rigidity of the torsion beam, effectively preventing large-scale vibrations of the vehicle body from causing bending or deformation of the torsion beam. This improves the bending resistance and durability of the torsion beam, optimizes the stress distribution of the torsion beam, reduces stress concentration, and extends its service life.

Description

Technical Field

[0001] This utility model relates to the technical field of unmanned vehicle suspension, specifically a suspension structure. Background Technology

[0002] With the continuous development of the vehicle transportation industry, both passenger and freight vehicles have higher requirements for space. Larger vehicles mean a corresponding increase in passenger or cargo capacity. The chassis is generally mounted on the axle, which is usually equipped with suspension structures and shock absorbers, mainly used to ensure the balance and support of the chassis, ensuring smooth vehicle operation.

[0003] In existing torsion beam suspensions, when a wheel on one side is under pressure, the crossbeam undergoes elastic torsion, absorbing some of the vibration. The crossbeam itself acts as a lateral stabilizer bar, providing anti-roll stiffness.

[0004] However, it has the following disadvantages: when the torsion beam undergoes elastic torsion, the stress of the wheel is concentrated on the torsion beam, which makes the torsion beam prone to twisting or deformation, thereby reducing the bending resistance and durability of the torsion beam. Utility Model Content

[0005] The purpose of this invention is to provide a suspension structure that solves the problem that when a torsion beam undergoes elastic torsion, the stress of the wheel is concentrated on the torsion beam, causing the torsion beam to be easily twisted or deformed, thereby reducing the bending resistance and durability of the torsion beam.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a suspension structure, including two longitudinal arms, the two longitudinal arms being fixed to the left and right ends of a torsion beam respectively, a first trapezoidal plate being fixed to the top surface of the torsion beam, a second trapezoidal plate being fixed to the inner wall of the torsion beam, a support plate being fixed to the bottom surface of the second trapezoidal plate, the bottom surface of the support plate being fixed to the inner wall of the torsion beam, and two connecting plates being fixed to the bottom surface of the second trapezoidal plate, the bottom surface of the connecting plates being fixed to the inner wall of the torsion beam.

[0007] Preferably, one end of the longitudinal arm is fixed with a rubber bushing.

[0008] Preferably, a mounting plate is fixed on the torsion beam, the mounting plate is fixed to the longitudinal arm, and a helical spring is fixed on the top surface of the mounting plate.

[0009] Preferably, a fixing block is fixed on the longitudinal arm, and a shock absorber is fixed on the top surface of the fixing block.

[0010] Preferably, the torsion beam has several ventilation holes.

[0011] Preferably, the longitudinal arms are V-shaped and symmetrically distributed at both ends of the torsion beam.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] First, the combination of the first trapezoidal plate, the second trapezoidal plate, the support plate, and the connecting plate enhances the overall structural strength and rigidity of the torsion beam, effectively preventing bending or deformation of the torsion beam due to large-scale vibrations of the vehicle body. This improves the bending resistance and durability of the torsion beam, optimizes the stress distribution, reduces stress concentration, and extends its service life. Rubber bushings adapt to different directions and angles of motion, ensuring the stability and ride comfort of the suspension system.

[0014] Second, coil springs support the weight of the vehicle body and provide cushioning during driving. When the wheels encounter uneven road surfaces, the coil springs are compressed or stretched to absorb the impact and maintain vehicle stability. Shock absorbers absorb and dissipate vibration energy caused by uneven road surfaces, reducing the transmission of these vibrations to the vehicle body. By providing damping force, shock absorbers control the vibration amplitude of the suspension system, allowing the wheels to better contact the road surface and improving vehicle grip. The combined use of coil springs and shock absorbers forms an effective vibration control system, improving the vehicle's dynamic performance. Vent holes balance the air pressure inside and outside the torsion beam. Inside the torsion beam, due to temperature changes and moisture evaporation, a certain pressure difference may form. Vent holes allow air circulation, thus alleviating potential stress problems caused by this pressure difference and protecting the structural integrity of the torsion beam. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 This is a breakdown diagram of an embodiment.

[0017] Figure 3 This is a schematic diagram showing the disassembled support plate and connecting plate in an embodiment.

[0018] In the diagram: 1. Longitudinal arm; 2. Torsion beam; 3. First trapezoidal plate; 4. Second trapezoidal plate; 5. Support plate; 6. Connecting plate; 7. Rubber bushing; 8. Mounting plate; 9. Helical spring; 10. Fixing block; 11. Vibration damper; 12. Vent hole. Detailed Implementation

[0019] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figures 1-3As shown, a suspension structure includes two trailing arms 1, which are respectively fixed to the left and right ends of a torsion beam 2. A first trapezoidal plate 3 is fixed to the top surface of the torsion beam 2, and a second trapezoidal plate 4 is fixed to the inner wall of the torsion beam 2. A support plate 5 is fixed to the bottom surface of the second trapezoidal plate 4, and the bottom surface of the support plate 5 is fixed to the inner wall of the torsion beam 2. Two connecting plates 6 are fixed to the bottom surface of the second trapezoidal plate 4, and the bottom surface of the connecting plates 6 is fixed to the inner wall of the torsion beam 2. A rubber bushing 7 is fixed to one end of the trailing arm 1.

[0021] During use, the cooperation of the first trapezoidal plate 3, the second trapezoidal plate 4, the support plate 5, and the connecting plate 6 enhances the overall structural strength and rigidity of the torsion beam 2, effectively preventing bending or deformation of the torsion beam 2 due to large-scale vibrations of the vehicle body. This improves the bending resistance and durability of the torsion beam 2, optimizes the stress distribution of the torsion beam 2, reduces stress concentration, and extends its service life. The rubber bushing 7 adapts to different movement directions and angle changes, ensuring the stability and ride comfort of the suspension system.

[0022] like Figures 1-3 As shown, a mounting plate 8 is fixed on the torsion beam 2, the mounting plate 8 is fixed to the longitudinal arm 1, a helical spring 9 is fixed on the top surface of the mounting plate 8, a fixing block 10 is fixed on the longitudinal arm 1, and a shock absorber 11 is fixed on the top surface of the fixing block 10.

[0023] In use, the coil spring 9 supports the weight of the vehicle body and provides cushioning during vehicle movement. When the wheels encounter uneven road surfaces, the coil spring 9 is compressed or stretched to absorb impact and maintain vehicle stability. The shock absorber 11 absorbs and dissipates vibration energy caused by uneven road surfaces, reducing the transmission of these vibrations to the vehicle body. By providing damping force, the shock absorber 11 controls the vibration amplitude of the suspension system, allowing the wheels to better contact the road surface and improving the vehicle's grip. The combined use of the coil spring 9 and the shock absorber 11 forms an effective vibration control system, improving the vehicle's dynamic performance.

[0024] like Figures 1-3 As shown, the torsion beam 2 has several ventilation holes 12, and the longitudinal arm 1 is V-shaped and symmetrically distributed at both ends of the torsion beam 2.

[0025] During use, the air pressure inside and outside the torsion beam 2 can be balanced through the vent 12. Inside the torsion beam 2, due to temperature changes and moisture evaporation, a certain air pressure difference may be formed. The vent 12 allows air to circulate, thereby alleviating the stress problems that may be caused by this air pressure difference and protecting the structural integrity of the torsion beam 2.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A suspension structure comprising two trailing arms (1) each fixed to a left and right end of a torsion beam (2), characterized in that, The top surface of the torsion beam (2) is fixed with a first trapezoidal plate (3), the inner wall of the torsion beam (2) is fixed with a second trapezoidal plate (4), the bottom surface of the second trapezoidal plate (4) is fixed with a support plate (5), the bottom surface of the support plate (5) is fixed to the inner wall of the torsion beam (2), and the bottom surface of the second trapezoidal plate (4) is fixed with two connecting plates (6), the bottom surface of the connecting plates (6) is fixed to the inner wall of the torsion beam (2).

2. The suspension structure according to claim 1, characterized in that: A rubber bushing (7) is fixed to one end of the longitudinal arm (1).

3. A suspension structure according to claim 1, characterized in that: A mounting plate (8) is fixed on the torsion beam (2), the mounting plate (8) is fixed to the longitudinal arm (1), and a helical spring (9) is fixed on the top surface of the mounting plate (8).

4. A suspension structure according to claim 2, characterized in that: A fixing block (10) is fixed on the longitudinal arm (1), and a shock absorber (11) is fixed on the top surface of the fixing block (10).

5. A suspension structure according to claim 3, characterized in that: The torsion beam (2) has several ventilation holes (12).

6. A suspension structure according to claim 4, characterized in that: The longitudinal arm (1) is V-shaped and symmetrically distributed at both ends of the torsion beam (2).

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