Suspension test equipment

Abstract

The embodiment of the utility model provides suspension testing equipment. The device is applied to the technical field of general experiment and detection equipment. The device comprises a bottom plate, wheels and a suspension, hydraulic cylinders are uniformly distributed at four corners of the bottom plate and are used for simulating load and / or road surface change when the vehicle runs; the wheels are uniformly distributed above the bottom plate and are movably connected with the bottom plate through a limiting group; the suspension is mechanically connected with a supporting plate in the wheel through a steering knuckle; and an angle sensor is arranged on a cantilever group of the suspension. Therefore, the problem of disconnection of theory and practice in suspension system teaching and experimental tests can be solved.

Description

Technical Field

[0001] This utility model relates to the field of general experimental and testing equipment technology, and in particular to suspension testing equipment. Background Technology

[0002] As a core assembly that determines handling stability and safety, the structural design and performance optimization of the vehicle suspension system have become a research focus in the field of vehicle engineering. In the traditional teaching model, the teaching of suspension systems generally suffers from the problem of disconnect between theory and practice. Students and related researchers find it difficult to deeply understand the working principle and dynamic characteristics of the suspension system through abstract structural drawings or simulation software. Summary of the Invention

[0003] In view of this, the present invention provides a suspension testing device, the device comprising:

[0004] Floor, wheels, and suspension;

[0005] Hydraulic cylinders are evenly distributed at the four corners of the base plate. The hydraulic cylinders are used to simulate the load and / or road surface changes when the vehicle is in motion.

[0006] The wheels are evenly distributed on the top of the base plate and are movably connected to the base plate through a limit assembly;

[0007] The suspension is mechanically connected to the support plates in the wheels via steering knuckles;

[0008] Angle sensors are installed on the cantilever assembly of the suspension.

[0009] Preferably, the limiting group includes a first limiting group and a second limiting group; the first limiting group is disposed on the front and rear wheels located on the first side of the base plate; the second limiting group is disposed on the front and rear wheels located on the second side of the base plate.

[0010] Preferably, the first limiting group includes a wheel groove fixing seat opened on the wheel and a track wheel located therein, and an H-shaped track fixed to the base plate by fasteners, and the front and rear wheels located on the first side of the base plate are movably connected to the base plate through the track wheel; the second limiting group includes a limiting seat, and the front and rear wheels located on the second side of the base plate are stably connected to the base plate through the limiting seat.

[0011] Preferably, the suspension also includes a main frame and a hydraulic station; the hydraulic station is located in the middle of the main frame.

[0012] Preferably, the cantilever groups are symmetrically distributed at the front and rear of the main frame; the cantilever groups include a first cantilever group and a second cantilever group, and both pairs of cantilever groups are mirror symmetrical structures; the symmetrical structures are connected by crossbeams, which are set on the upper surface of the main frame.

[0013] Preferably, the mirror-symmetric structure includes: a double fork arm, a double fork arm mounting base, and a gas spring; the double fork arm, the double fork arm mounting base, and the gas spring are mechanically connected by a connecting shaft.

[0014] Preferably, limit structures are provided on both sides of the crossbeam.

[0015] Preferably, the angle sensor bracket is located at the lower part of the double fork arm fixing base, and the fixing link is connected to the lower swing arm in the double fork arm.

[0016] Preferably, a solenoid valve assembly mounting plate and a pipe fitting mounting plate are also provided in the middle of the main frame.

[0017] Preferably, the hydraulic station is mounted in the middle of the main frame via a fixed base.

[0018] In this invention, the modular structural design combined with a data acquisition system not only enables basic experiments such as suspension stiffness characteristics, damping characteristics, and vibration modes, but also allows for the development of active suspension control teaching equipment, thus solving the problem of the disconnect between theory and practice in suspension system teaching and experimental testing.

[0019] It should be understood that the description in the Summary Section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0020] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. The drawings are provided for a better understanding of the invention and are not intended to limit the invention. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0021] Figure 1 A perspective view of a suspension testing device provided in an embodiment of the present invention is shown;

[0022] Figure 2 This figure shows a front view of a suspension testing device provided in an embodiment of the present invention;

[0023] Figure 3 The image shows a right view of a suspension testing device provided in an embodiment of the present invention;

[0024] Figures 4-6 This illustration shows a partially enlarged view of a suspension testing device provided in an embodiment of the present invention;

[0025] Figure 7 An exemplary operating console provided by an embodiment of the present invention is shown.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Base plate, 11. Hydraulic cylinder, 2. Wheel, 211. First limit group, 212. Suspension, 3. Cantilever group, 32. First cantilever group, 321. Second cantilever group, 322. Double wishbone, 323. Double wishbone mounting base, 324. Gas spring, 325. Main frame, 31. Hydraulic station, 33. Steering knuckle, 4. Support plate, 5. Angle sensor, 6. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0030] In view of the problems mentioned in the background art, this utility model provides a suspension testing device.

[0031] Specifically, the device includes: a base plate 1, wheels 2 and suspension 3; hydraulic cylinders 11 are evenly distributed at the four corners of the base plate 1, and the hydraulic cylinders 11 are used to simulate the load and / or road surface changes when the vehicle is driving;

[0032] The wheels 2 are evenly distributed above the base plate 1 and are movably connected to the base plate 1 through the limiting group; the suspension 3 is mechanically connected to the support plate 5 in the wheel 2 through the steering knuckle 4; the cantilever group 32 of the suspension 3 is equipped with an angle sensor 6.

[0033] In this way, actual experiments on suspension stiffness characteristics, damping characteristics, and vibration modes can be conducted based on real automotive suspension structures. It can also be combined with active suspension control development teaching equipment, solving the problem of the disconnect between theory and practice in suspension system teaching and experimental testing.

[0034] The suspension testing equipment disclosed in this utility model will now be described in detail with reference to the accompanying drawings and preferred embodiments.

[0035] like Figures 1-3 As shown, the suspension testing equipment includes a base plate 1, wheels 2, and suspension 3.

[0036] The base plate 1 is the fundamental support component of the entire equipment. Hydraulic cylinders 11 are evenly distributed at the four corners of the base plate 1. These hydraulic cylinders 11 are key components for simulating the load and / or road surface changes when a vehicle is driving. To simulate a vehicle driving on a bumpy road, the hydraulic cylinders 11 can be controlled to extend and retract vertically, thereby causing the base plate 1 to undulate in a manner similar to a bumpy road surface, thus simulating the impact of actual road conditions on the suspension. To simulate the front and rear load changes when a vehicle accelerates or brakes, the hydraulic cylinders 11 on the front and rear sides can be controlled to produce different extension and retraction amounts, thereby simulating the corresponding load changes.

[0037] The wheel 2 is located above the base plate 1 and is movably connected to the base plate 1 through a limiting group, which includes a first limiting group 211 and a second limiting group 212.

[0038] like Figure 4 As shown, the first limiting group 211 is provided on the front and rear wheels located on the first side of the base plate 1; the first limiting group 211 includes a wheel groove fixing seat opened on the wheel and a track wheel located therein, and an H-shaped track fixed on the base plate 1 by fasteners. The front and rear wheels located on the first side of the base plate 1 are movably connected to the base plate 1 through the track wheel.

[0039] like Figure 5 As shown, the second limiting group 212 is disposed on the front and rear wheels located on the second side of the base plate 1. The first limiting group 211 and the second limiting group 212 include limiting seats. The front and rear wheels located on the second side of the base plate 1 are stably connected to the base plate 1 through the limiting seats.

[0040] In this invention, an asymmetrical limit assembly design is adopted on both sides. For basic teaching such as static load testing, the second limit seat can provide stable support and simplify operation. For advanced experiments such as dynamic tilt testing, the track wheel on the first side is used to achieve lateral movement. It can simulate lateral sliding or asymmetrical road impact when a vehicle is turning, while ensuring that the base plate remains stable during high-frequency vibration or high-load experiments. This meets the multi-dimensional experimental requirements of suspension and takes into account the ease of use and stability of the teaching equipment.

[0041] It should be noted that if H-shaped track wheels are used on both sides, although omnidirectional movement can be achieved, it will increase the complexity of the track and the requirements for installation accuracy. By using a design with one side fixed and the other side movable, the core experimental requirements are met while reducing the difficulty of track processing and assembly.

[0042] like Figures 1-3As shown, the suspension 3 is mechanically connected to the support plate 5 in the wheel 2 through the steering knuckle 4. The steering knuckle 4 enables the wheel 2 to make steering movements within a certain range, thereby simulating the steering situation of the wheel when the vehicle is turning. When the bottom plate 1 moves under the action of the hydraulic cylinder 11, this movement is transmitted to the wheel 2 through the suspension 3. At the same time, the wheel 2 makes corresponding movements under the restriction of the limit group, thereby simulating the interaction between the suspension and the wheel when the vehicle is driving.

[0043] like Figures 1-3 As shown, the suspension 3 also includes a main frame 31 and a hydraulic station 33. The hydraulic station 33 is mounted in the middle of the main frame via a hydraulic station mounting bracket. The hydraulic station 33 is the power source for the entire suspension system, providing the necessary hydraulic power to achieve active control of the suspension 3. When simulating different road conditions, the hydraulic station 33 can adjust the stiffness and damping of the suspension 3 as needed, allowing the suspension 3 to better adapt to different driving conditions.

[0044] like Figures 1-3 As shown, the cantilever groups 32 are symmetrically distributed at the front and rear of the main frame. They include a first cantilever group 321 and a second cantilever group 322. Both pairs of cantilever groups are mirror symmetrical structures. The symmetrical structures are connected by crossbeams. The crossbeams are set on the upper surface of the main frame. Limiting structures are set on both sides of the crossbeams. The crossbeams and limiting structures enhance the overall structural strength of the suspension system.

[0045] Furthermore, the mirror-symmetric structure includes a double wishbone 323, a double wishbone mounting base 324, and a gas spring 325. The double wishbone 323, the double wishbone mounting base 324, and the gas spring 325 are mechanically connected by a connecting shaft. The double wishbone 323 can effectively control the movement trajectory of the wheel, and the gas spring 325 has elastic and damping characteristics, which can simulate the vehicle to absorb and buffer the vibration and impact transmitted from the road surface.

[0046] like Figure 2 and Figure 6 As shown, an angle sensor 6 is installed on the cantilever assembly 32 of the suspension 3. The bracket of the angle sensor 6 is located at the lower part of the double wishbone mounting base 324. The fixed link is connected to the lower control arm in the double wishbone 323, so as to monitor the angle change of the double wishbone in real time and feed these data back to the data acquisition system. By analyzing these angle data, we can gain a deeper understanding of the working status and dynamic characteristics of the suspension system under different working conditions.

[0047] like Figures 1-3As shown, a solenoid valve assembly mounting plate is also provided on the upper surface of the middle part of the main frame 31, and a pipe fitting mounting plate is also provided on the middle side surface. The solenoid valve assembly is mounted on this mounting plate, which can control the flow direction and flow rate of hydraulic oil according to the control signal of the hydraulic station, thereby realizing precise control of the suspension system; the pipe fitting mounting plate provides the corresponding hydraulic oil pipe mounting positions.

[0048] It is understandable that the above suspension testing equipment can be paired with, for example... Figure 7 The experiment was conducted on the control panel shown.

[0049] During the test experiment, the motion parameters of the hydraulic cylinder 11 are first set according to the experimental purpose to simulate different vehicle driving loads and road surface changes. If a suspension stiffness characteristic experiment is to be conducted, the hydraulic cylinder 11 can be controlled to extend and retract at a certain frequency and amplitude to simulate the vehicle driving on roads with different degrees of bumpiness. At this time, the movement of the chassis 1 is transmitted to the wheels 2 through the suspension 3. The wheels 2 move accordingly under the restriction of the limit group. The angle sensor 6 monitors the angle change of the cantilever group 32 in real time and transmits the data to the control panel. At the same time, the hydraulic station controls the flow of hydraulic oil through the solenoid valve group according to the experimental requirements to adjust the stiffness and damping of the suspension.

[0050] When conducting fault detection / repair experiments, relevant fault modes and parameters can be selected / set through the control panel to enable the suspension equipment to simulate relevant faults.

[0051] The suspension testing equipment disclosed in this utility model has the following beneficial effects:

[0052] This device recreates the core structure of a vehicle suspension system, visually demonstrating the system's structure and transmission control logic. Through a dynamic mechanical feedback system, it recreates the component deformation during suspension operation. It can be further integrated with an intelligent control panel to expand the development of active suspension control. Through reasonable structural design and functional configuration, it effectively solves the problem of the disconnect between theory and practice in suspension system teaching, providing a good experimental device for teaching and research in the field of vehicle engineering.

[0053] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A suspension testing apparatus characterized by, The device includes: The base plate (1), wheels (2) and suspension (3); Hydraulic cylinders (11) are evenly distributed at the four corners of the base plate (1). The hydraulic cylinders (11) are used to simulate the load and / or road surface changes when the vehicle is driving. The wheels (2) are evenly distributed above the base plate (1) and are movably connected to the base plate (1) through a limiting group; The suspension (3) is mechanically connected to the support plate (5) in the wheel (2) via the steering knuckle (4); An angle sensor (6) is provided on the cantilever assembly (32) of the suspension (3).

2. The apparatus of claim 1, wherein, The limiting group includes a first limiting group (211) and a second limiting group (212); the first limiting group (211) is disposed on the front and rear wheels located on the first side of the base plate (1); the second limiting group (212) is disposed on the front and rear wheels located on the second side of the base plate (1).

3. The apparatus of claim 2, wherein, The first limiting group (211) includes a wheel groove fixing seat opened on the wheel and a track wheel located therein, and an H-shaped track fixed on the base plate (1) by fasteners. The front and rear wheels located on the first side of the base plate (1) are movably connected to the base plate (1) through the track wheel. The second limiting group (212) includes a limiting seat. The front and rear wheels located on the second side of the base plate (1) are stably connected to the base plate (1) through the limiting seat.

4. The apparatus of claim 1, wherein, The suspension (3) also includes a main frame (31) and a hydraulic station (33); the hydraulic station (33) is located in the middle of the main frame (31).

5. The apparatus of claim 4, wherein, The cantilever groups (32) are symmetrically distributed at the front and rear of the main frame (31); the cantilever groups (32) include a first cantilever group (321) and a second cantilever group (322), both pairs of cantilever groups are mirror symmetrical structures; the symmetrical structures are connected by crossbeams, which are set on the upper surface of the main frame (31).

6. The apparatus of claim 4, wherein, The cantilever assembly (32) includes: a double fork arm (323), a double fork arm mounting base (324), and a gas spring (325); the double fork arm (323), the double fork arm mounting base (324), and the gas spring (325) are mechanically connected by a connecting shaft.

7. The apparatus of claim 5, wherein, Limiting structures are provided on both sides of the crossbeam.

8. The apparatus of claim 6, wherein, The angle sensor (6) bracket is located at the lower part of the double fork arm fixing seat (324), and the fixing link is connected to the lower swing arm in the double fork arm (323).

9. The apparatus of claim 4, wherein, The main frame (31) is also provided with a solenoid valve assembly mounting plate and a pipe fitting mounting plate in the middle.

10. The apparatus of claim 4, wherein, The hydraulic station (33) is mounted in the middle of the main frame (31) via a fixed base.

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