Suspension leveling device for automobile chassis

Abstract

The utility model relates to the field of automobile engineering, and discloses an automobile chassis suspension leveling device, which comprises a suspension system and is characterized in that a leveling structure is arranged, so that when the chassis suspension system of a vehicle needs to be leveled and adjusted, the horizontal state of the suspension of the vehicle chassis is sensed through a horizontal sensor; the horizontal sensor uploads data to a microcontroller in the vehicle, and the microcontroller controls a driving motor to drive a threaded screw rod to rotate, so that a leveling block ascends and descends in a suspension system and drives a lower fixing sleeve to ascend and descend vertically, and the purpose of adjusting the vertical horizontal angle of a lower rocker arm is achieved; the two ends of the four suspension systems on the left side, the right side, the front end and the rear end are all located on the same horizontal line, precise adjustment of the suspension systems is achieved, and balance and stability of a vehicle on different road surfaces are guaranteed. Compared with a traditional hydraulic or pneumatic system, the leveling structure has the advantages that the adjusting accuracy is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile engineering, in particular to an automobile chassis suspension leveling device. Background Art

[0002] The automobile chassis suspension system is a key component of the automobile. It is composed of springs, shock absorbers, stabilizer bars (anti-roll bars) and swing arms. Its main function is to support the body, absorb road impact, and ensure good contact between the wheels and the ground. This system not only affects the vehicle's driving stability, ride comfort and handling stability, but also determines the performance of the car under different road conditions. Suspension systems can be divided into McPherson, double wishbone, multi-link, torsion beam and air suspension according to their different structures and working principles. Each type of suspension has its own unique advantages and applicable scenarios. For example, the McPherson suspension has a simple structure and low cost, and is suitable for front suspension; the double wishbone suspension provides excellent handling performance and comfort, and is suitable for high-performance models; and the air suspension can change the suspension hardness by adjusting the air pressure, providing more flexible suspension adjustment numbers. In short, the design and adjustment of the suspension system play a decisive role in the overall performance of the car.

[0003] According to the Chinese patent authorization announcement: CN219058425U, a vehicle chassis leveling device suitable for battery replacement of new energy vehicles is disclosed, which is specifically used in new energy vehicle battery replacement stations to solve the problem that the vehicle chassis cannot be in a horizontal state due to the different suspensions of different vehicles and the different tire pressures of the four tires during the battery replacement process. The RGV unlocking platform has the problem that the battery pack and the vehicle chassis are not parallel in the Z direction during the battery replacement process, resulting in unreasonable force on the electric plug of the battery pack and unsuccessful recognition of the unlocking mechanism during the plugging and unplugging process. The device includes four welding frames (1) evenly distributed and fixed on both sides of the RGV walking frame. The welding frame (1) is provided with: a mounting plate (11), a vertical plate (12), a flat plate (13), a flanged copper sleeve (2), a guide shaft (3), a spring (4), two limit blocks (5), and a buffer nylon block (6). However, the vehicle chassis suspension leveling device still has shortcomings when used. Traditional chassis suspension leveling devices generally use air compressors or hydraulic pumps as power sources to realize the jacking operation of the two ends of the vehicle chassis suspension system, thereby achieving the leveling purpose. However, these leveling devices have certain limitations in practical applications. First, the air compressor and hydraulic pump are insufficient in terms of adjustment accuracy, which may affect the leveling effect of the suspension system. Secondly, due to the relatively complex structure of these devices, they may have a high failure rate during use. In addition, the maintenance requirements of air compressors and hydraulic pumps are relatively frequent. For example, the hydraulic system needs to regularly add hydraulic oil and other maintenance measures, which undoubtedly increases the overall maintenance cost. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a vehicle chassis suspension leveling device, which solves the problems of complex structure, high failure rate and high maintenance cost in the use of the existing air compressor or hydraulic pump.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a vehicle chassis suspension leveling device, including a suspension system, the suspension system including a mounting frame, an upper rocker arm and a lower rocker arm, the upper ends of the two side surfaces of the mounting frame are rotatably connected to the upper rocker arms, the lower ends of the two side surfaces of the mounting frame are rotatably connected to the lower rocker arms, the lower end of the mounting frame is installed with a leveling structure, the leveling structure includes a fixing plate and a leveling block, the fixing plate is installed on the lower surface of the mounting frame, a level sensor is installed in the middle part of the upper surface of the fixing plate, both ends of the lower surface of the fixing plate are fixedly connected to a motor box, a driving motor is installed inside the motor box, the output end of the driving motor is transmission-connected to a threaded screw, the surface of the threaded screw is threadedly connected to a leveling block, the outer surface of the lower rocker arm is fixedly connected to a lower fixing sleeve, and a rigid spring is arranged between the lower fixing sleeve and the leveling block;

[0006] Auxiliary anti-seismic structures are installed on both sides of the mounting frame, and the auxiliary anti-seismic structures include dampers. Grooves are opened on the surfaces of both sides of the mounting frame, and a fixing rod is fixedly connected to the inside of the groove, and a lifting block is slidably connected to the surface of the fixing rod, and an upper fixed sleeve is fixedly connected to the outer surface of the upper rocker arm, and a connecting rod is rotatably connected to one side of the lifting block, and one end of the connecting rod away from the lifting block is fixedly connected to one end of the damper, and the other end of the damper is rotatably connected to the surface of the upper fixed sleeve through the connecting rod.

[0007] Preferably, the mounting frame and the upper rocker arm and the lower rocker arm are rotatably connected to each other via a rotating shaft.

[0008] Preferably, the ends of the upper rocker arm and the lower rocker arm away from the mounting frame are both rotatably connected to rotating wheels.

[0009] Preferably, the top end of the threaded screw is fixedly connected to a limiting block.

[0010] Preferably, an auxiliary spring structure is installed between the lower surface of the lifting block and the inner bottom end of the groove, and the auxiliary spring structure is arranged on the surface of the fixing rod.

[0011] Preferably, the fixing plate is detachably mounted on the lower surface of the mounting frame by means of mounting bolts.

[0012] Preferably, a through hole is provided in the middle portion of the surface of the fixing plate.

[0013] Preferably, a shock absorber is arranged between the upper end of the rear side surface of the mounting frame and the lower rocker arm, one end of the shock absorber is rotatably connected to the upper end of the rear side of the mounting frame, and the other end of the shock absorber is rotatably connected to the side surface of the lower rocker arm.

[0014] Beneficial Effects

[0015] The utility model provides a vehicle chassis suspension leveling device. Compared with the prior art, it has the following beneficial effects:

[0016] 1. In the utility model, through the leveling structure, when the chassis suspension system of the vehicle needs to be leveled and adjusted, the horizontal state of the chassis suspension of the vehicle is sensed by the horizontal sensor, and the horizontal sensor uploads the data to the microcontroller inside the vehicle. The microcontroller controls the drive motor to drive the screw rod to rotate, so that the leveling block is lifted and lowered inside the suspension system, and the lower fixed sleeve is driven to lift and lower, so as to achieve the purpose of adjusting the upper and lower horizontal angles of the lower rocker arm, so that the two ends of the four suspension systems on the left and right sides and the front and rear ends are on the same horizontal line, and the suspension system is accurately adjusted to ensure the balance and stability of the vehicle on different road surfaces; compared with the traditional hydraulic or pneumatic system, the leveling structure improves the accuracy of adjustment and reduces the maintenance cost; at the same time, it reduces the failure rate and improves the overall reliability and service life of the vehicle;

[0017] 2. In the utility model, by setting up an auxiliary anti-seismic structure, when the vehicle is traveling on a more bumpy road, it can not only be shock-proofed by the shock absorber in the suspension system at the lower end of the chassis, but also be lifted and lowered inside the groove by the lifting block, one side of the lifting block is connected to the upper rocker arm through a connecting rod and a damper, and the purpose of auxiliary anti-seismic is achieved by the damper, and the auxiliary spring structure arranged at the lower end of the lifting block surface further reduces the vibration, thereby improving the shock-proof effect of the vehicle on bumpy roads, and significantly increasing the ride comfort and vehicle stability; at the same time, the auxiliary spring structure further reduces the vibration and extends the service life of the vehicle and its suspension system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a vehicle chassis suspension leveling device proposed by the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the bottom end of a vehicle chassis suspension leveling device proposed by the utility model;

[0020] Figure 3 The utility model provides a vehicle chassis suspension leveling device Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4This is a three-dimensional schematic diagram from another angle of the automobile chassis suspension leveling device proposed by the utility model.

[0022] Legend:

[0023] 1. Suspension system; 101. Mounting frame; 102. Rotating shaft; 103. Upper rocker arm; 104. Lower rocker arm; 105. Shock absorber; 106. Rotating wheel; 2. Leveling structure; 201. Fixing plate; 202. Mounting bolts; 203. Through hole; 204. Driving motor; 205. Level sensor; 206. Threaded screw; 207. Limit block; 208. Leveling block; 209. Lower fixed sleeve; 210. Rigid spring; 3. Auxiliary anti-seismic structure; 301. Groove; 302. Fixing rod; 303. Lifting block; 304. Auxiliary spring structure; 305. Connecting rod; 306. Damper; 307. Upper fixed sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 The utility model provides two technical solutions, which specifically include the following embodiments:

[0026] Embodiment 1:

[0027] A vehicle chassis suspension leveling device comprises a suspension system 1, wherein the suspension system 1 comprises a mounting frame 101, an upper rocker arm 103 and a lower rocker arm 104, wherein the upper ends of both side surfaces of the mounting frame 101 are rotatably connected to the upper rocker arms 103, and the lower ends of both side surfaces of the mounting frame 101 are rotatably connected to the lower rocker arms 104, and a leveling structure 2 is mounted at the lower end of the mounting frame 101, and the leveling structure 2 comprises a fixing plate 201 and a leveling block 208, wherein the fixing plate 201 is mounted on the lower surface of the mounting frame 101, and the fixing plate 201 is mounted on the upper surface of the fixing plate 201. The intermediate part is equipped with a level sensor 205, which is a prior art, and the model of the level sensor 205 is AXISENSE-G. The two ends of the lower surface of the fixed plate 201 are fixedly connected with motor boxes, and a driving motor 204 is installed inside the motor box. The output end of the driving motor 204 is connected to a threaded screw 206, and the surface of the threaded screw 206 is connected to a leveling block 208. This transmission method makes the movement of the leveling block 208 smoother and more accurate, and improves the leveling efficiency. The outer surface of the lower rocker arm 104 is fixedly connected with a lower fixed sleeve 209, and a rigid spring 210 is arranged between the lower fixed sleeve 209 and the leveling block 208. Such a connection enhances the elastic reset ability of the suspension system 1 and prolongs the service life of the suspension system 1. The mounting frame 101 and the upper rocker arm 103 and the lower rocker arm 104 are rotatably connected to each other via a rotating shaft 102. The ends of the upper rocker arm 103 and the lower rocker arm 104 away from the mounting frame 101 are rotatably connected to a rotating wheel 106. The top of the threaded screw 206 is fixedly connected to a limit block 207. This design prevents the leveling block 208 from excessive lifting and lowering, ensuring the safety and reliability of the leveling process. The fixing plate 201 is detachably mounted on the lower surface of the mounting frame 101 by means of mounting bolts 202. This installation method facilitates the maintenance and replacement of the device and reduces maintenance costs. A through hole 203 is provided in the middle part of the surface of the fixing plate 201, which facilitates the installation of sensors and other components, optimizes the structural design of the device, and reduces the complexity of installation.

[0028] When using the automobile chassis suspension leveling device, first, the level sensor 205 detects the horizontal state of the vehicle chassis suspension and transmits the data to the microcontroller inside the vehicle. Then, the microcontroller controls the drive motor 204 according to the sensor data, and the drive motor 204 drives the threaded screw 206 to rotate, thereby causing the leveling block 208 to be accurately raised and lowered inside the suspension system 1. The lifting and lowering of the leveling block 208 drives the lower fixed sleeve 209 to move up and down, thereby adjusting the upper and lower horizontal angles of the lower rocker arm 104, ensuring that the four ends of the suspension system 1 on the left and right sides and the front and rear ends are all on the same horizontal line. This process realizes the precise adjustment of the suspension system 1 and ensures the balance and stability of the vehicle on different road surfaces. In addition, compared with traditional hydraulic or pneumatic systems, the leveling structure 2 has higher adjustment accuracy, lower maintenance cost, and reduced failure rate, which effectively improves the overall reliability and service life of the vehicle. When maintaining and replacing the device, the mounting bolts 202 on the fixing plate 201 can be used for quick disassembly and installation, reducing maintenance costs and installation complexity.

[0029] Embodiment 2:

[0030] On the basis of the first embodiment, auxiliary anti-seismic structures 3 are installed on both sides of the mounting frame 101. The auxiliary anti-seismic structures 3 include dampers 306, which are helpful to effectively reduce the vibration of the vehicle body and improve the driving stability when the vehicle is driving on a bumpy road. Grooves 301 are opened on the surfaces of both sides of the mounting frame 101. The interior of the groove 301 is fixedly connected with a fixing rod 302. The surface of the fixing rod 302 is slidably connected with a lifting block 303. The outer surface of the upper rocker arm 103 is fixedly connected with an upper fixed sleeve 307. One side of the lifting block 303 is rotatably connected with a connecting rod 305. One end of the connecting rod 305 away from the lifting block 303 is fixedly connected to one end of the damper 306. The other end of the damper 306 is rotatably connected to the upper fixed sleeve 307 through the connecting rod 305. The surface of the sleeve 307 allows the shock-absorbing force to be transmitted evenly, thereby enhancing the overall shock resistance of the suspension system 1 and achieving effective transmission of the shock-absorbing force, making the suspension system 1 more efficient in absorbing vibrations. An auxiliary spring structure 304 is installed between the lower surface of the lifting block 303 and the inner bottom end of the groove 301. The auxiliary spring structure 304 is arranged on the surface of the fixing rod 302 to provide additional buffering during the shock-absorbing process, reduce the impact on the vehicle body, and extend the service life of the suspension system 1. A shock absorber 105 is arranged between the upper end of the rear side surface of the mounting frame 101 and the lower rocker arm 104. One end of the shock absorber 105 is rotatably connected to the upper end of the rear side of the mounting frame 101, and the other end of the shock absorber 105 is rotatably connected to the side surface of the lower rocker arm 104.

[0031] When the vehicle is traveling on a bumpy road, the auxiliary anti-seismic structure 3 begins to play a role. First, the damper 306 is connected to the upper rocker arm 103 and the lifting block 303 through the connecting rod 305 to achieve uniform transmission of the shock-absorbing force and enhance the anti-seismic ability of the suspension system 1. At the same time, the auxiliary spring structure 304 provides additional buffering for the lifting block 303 and the groove 301 to reduce the impact on the vehicle body. The shock absorber 105 is connected to the rear side of the mounting frame 101 and the lower rocker arm 104 to provide additional shock-absorbing support to ensure the stability of the vehicle. As the road surface bumps, the lifting block 303 rises and falls in the groove 301, and the damper 306 and the auxiliary spring structure 304 work together to further reduce vibration and extend the service life of the suspension system 1. Such a design not only improves the shock-absorbing effect of the vehicle on bumpy roads, significantly increases ride comfort and vehicle stability, but also ensures the service life of the vehicle and its suspension system 1.

[0032] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A vehicle chassis suspension leveling device, comprising a suspension system (1), characterized in that: The suspension system (1) comprises a mounting frame (101), an upper rocker arm (103) and a lower rocker arm (104); the upper ends of both side surfaces of the mounting frame (101) are rotatably connected to the upper rocker arms (103); the lower ends of both side surfaces of the mounting frame (101) are rotatably connected to the lower rocker arms (104); a leveling structure (2) is mounted at the lower end of the mounting frame (101); the leveling structure (2) comprises a fixing plate (201) and a leveling block (208); the fixing plate (201) is mounted on the lower surface of the mounting frame (101); A level sensor (205) is installed in the middle part of the upper surface, and motor boxes are fixedly connected to both ends of the lower surface of the fixing plate (201), a driving motor (204) is installed inside the motor box, and a threaded screw (206) is drivingly connected to the output end of the driving motor (204), and a leveling block (208) is threadedly connected to the surface of the threaded screw (206), and a lower fixed sleeve (209) is fixedly connected to the outer surface of the lower rocker arm (104), and a rigid spring (210) is arranged between the lower fixed sleeve (209) and the leveling block (208); Auxiliary anti-seismic structures (3) are installed on both sides of the mounting frame (101), and the auxiliary anti-seismic structures (3) include dampers (306). Grooves (301) are provided on both side surfaces of the mounting frame (101), and a fixing rod (302) is fixedly connected inside the groove (301), and a lifting block (303) is slidably connected to the surface of the fixing rod (302). An upper fixed sleeve (307) is fixedly connected to the outer surface of the upper rocker arm (103), and a connecting rod (305) is rotatably connected to one side of the lifting block (303), and one end of the connecting rod (305) away from the lifting block (303) is fixedly connected to one end of the damper (306), and the other end of the damper (306) is rotatably connected to the surface of the upper fixed sleeve (307) through the connecting rod (305).

2. The automobile chassis suspension leveling device according to claim 1, characterized in that: The mounting frame (101), the upper rocker arm (103) and the lower rocker arm (104) are rotatably connected to each other via a rotating shaft (102).

3. The automobile chassis suspension leveling device according to claim 1, characterized in that: The ends of the upper rocker arm (103) and the lower rocker arm (104) away from the mounting frame (101) are both rotatably connected to a rotating wheel (106).

4. The automobile chassis suspension leveling device according to claim 1, characterized in that: The top end of the threaded screw rod (206) is fixedly connected to a limiting block (207).

5. The automobile chassis suspension leveling device according to claim 1, characterized in that: An auxiliary spring structure (304) is installed between the lower surface of the lifting block (303) and the inner bottom end of the groove (301), and the auxiliary spring structure (304) is arranged on the surface of the fixing rod (302).

6. The automobile chassis suspension leveling device according to claim 1, characterized in that: The fixing plate (201) is detachably mounted on the lower surface of the mounting frame (101) via mounting bolts (202).

7. The automobile chassis suspension leveling device according to claim 1, characterized in that: A through hole (203) is provided in the middle portion of the surface of the fixing plate (201).

8. The automobile chassis suspension leveling device according to claim 1, characterized in that: A shock absorber (105) is provided between the upper end of the rear side surface of the mounting frame (101) and the lower rocker arm (104), one end of the shock absorber (105) is rotatably connected to the upper end of the rear side of the mounting frame (101), and the other end of the shock absorber (105) is rotatably connected to the side surface of the lower rocker arm (104).

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