Active suspension of driverless vehicle

Abstract

The utility model discloses an active suspension of an unmanned vehicle, and relates to the field of active suspensions. Comprising an active suspension body, a protection mechanism is arranged on the surface of a shock absorber, a telescopic mechanism is arranged on the surface of the shock absorber, the protection mechanism comprises a bearing, the outer ring of the bearing is fixedly connected to the inner wall of the shock absorber, and a telescopic rod is fixedly connected between the opposite sides of a first connecting frame and a second connecting frame; the other end of the telescopic rod is fixedly sleeved with a second protection plate, the telescopic mechanism comprises a first shell, the first shell is fixedly connected to the top of the bearing inner ring, the inner wall of the first shell is slidably connected with a second shell, and the inner wall of the first shell is fixedly connected with a rack; and by arranging the protection mechanism, a first protection plate and a second protection plate rotate under the action of wind power, and the first protection plate and the second protection plate achieve the effects of blocking and changing the flying path of the pebbles. Stone and other sundries are effectively prevented from entering the shock absorber, the service life of the shock absorber is prolonged, and the driving safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of active suspensions, and more specifically to an active suspension for a driverless vehicle. Background Art

[0002] An active suspension is a suspension system that can dynamically and adaptively adjust according to driving conditions of a vehicle. It adds a controllable force device to a passive suspension system. Through information received by vehicle sensors, the active suspension can real-time judge and adjust its stiffness and damping characteristics, so that the suspension system is always in the best shock absorption state. This adjustment not only reduces the vibration of the vehicle body and the noise between the tires and the road surface, but also improves the handling stability, ride comfort and passing performance of the vehicle, thus providing the most comfortable riding experience.

[0003] An active suspension includes structures such as elastic elements, shock absorbers and guiding devices. When the vehicle is driving on complex road conditions, especially on a road with many stones, there is a risk that stones enter the shock absorber. Once the spring is stuck by a stone, the performance of the shock absorber is easily affected, resulting in a reduction in the driving smoothness of the vehicle. If the stone is stuck in the spring for a long time, it is also easy to cause damage to the spring or other related components. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an active suspension for a driverless vehicle aiming at the above problems of the prior art. Through the cooperation of a protection mechanism and a telescopic mechanism, it effectively prevents sundries such as stones from entering the interior of the shock absorber, prolongs the service life of the shock absorber, and improves driving safety.

[0005] The utility model includes an active suspension body. A shock absorber is fixedly connected to the top of the active suspension body. A protection mechanism is arranged on the surface of the shock absorber, and a telescopic mechanism is arranged on the surface of the shock absorber;

[0006] The protection mechanism includes bearings. The outer ring of the bearings is fixedly connected to the inner wall of the shock absorber. The number of the bearings is two. A first connecting frame is fixedly connected to the top of the inner ring of one bearing, and a second connecting frame is fixedly connected to the top of the inner ring of the other bearing. The first connecting frame and the second connecting frame are used in cooperation. A telescopic rod is fixedly connected between the opposite sides of the first connecting frame and the second connecting frame. A first protection plate is fixedly sleeved at one end of the telescopic rod, and a second protection plate is fixedly sleeved at the other end of the telescopic rod. The first protection plate and the second protection plate are used in cooperation;

[0007] The telescopic mechanism includes a first outer shell fixedly connected to the top of the inner ring of the bearing. A second outer shell is slidably connected to the inner wall of the first outer shell. One end of the second outer shell is fixedly connected to the top of the inner ring of the bearing. Two racks are fixedly connected to the inner wall of the first outer shell. A gear is rotatably connected to the inner wall of the second outer shell, and the surface of the gear meshes with the inner wall of the rack.

[0008] Preferably, a limiting groove is formed on one side of the second connecting frame, and a limiting block is fixedly connected to one side of the first connecting frame. The surface of the limiting block contacts the inner wall of the limiting groove.

[0009] Preferably, a sliding groove is formed on the surface of the first protection plate, and a sliding block is fixedly connected to one side of the second protection plate. The surface of the sliding block contacts the inner wall of the sliding groove.

[0010] Preferably, a ball is rotatably connected to the inner wall of the sliding block, and the surface of the ball contacts the inner wall of the sliding groove.

[0011] Preferably, two grooves are formed on the inner wall of the second outer shell. Preferably

[0012] A support rod is rotatably connected to the inner wall of the groove, and the gear is fixedly connected to the surface of the support rod. Preferably, both the first protection plate and the second protection plate are made of steel plate material, and both the first protection plate and the second protection plate are arc-shaped.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. By providing a protection mechanism, when the vehicle is running, with the bearing as the rotation center point, the first protection plate and the second protection plate rotate under the action of wind force. The first protection plate and the second protection plate play a role in blocking and changing the flying path of the stones, preventing the stones from entering the shock absorber and reducing potential damage to the shock absorber.

[0015] 2. By providing a telescopic mechanism, the first outer shell and the second outer shell can be telescoped, and can be adjusted accordingly according to the telescopic movement of the shock absorber to ensure full coverage of the shock absorber, effectively preventing sundries such as stones from entering the shock absorber, thereby extending the service life of the shock absorber and improving driving safety.

[0016] 3. Through the design of the limiting groove and the limiting block, a telescopic path for the first connecting frame and the second connecting frame is provided, ensuring that these two connecting frames can be adjusted accordingly following the movement of the shock absorber, maintaining synchronous movement with the shock absorber, and improving the stability and reliability of the system. Description of the Drawings

[0017] Figure 1This is a three-dimensional view of the overall structure of the present utility model.

[0018] Figure 2 This is a schematic structural view of the shock absorber and bearing of the present utility model.

[0019] Figure 3 This is a schematic structural view of the protection mechanism of the present utility model.

[0020] Figure 4 This is a sectional view of the telescopic mechanism structure of the present utility model.

[0021] Figure 5 This is an exploded view of the partial structure of the protection mechanism of the present utility model.

[0022] Figure 6 This is a schematic structural view of the first protection plate, slider and ball of the present utility model.

[0023] Each mark in the figure is: 1, active suspension body; 2, shock absorber; 3, protection mechanism; 301, bearing; 302, first connecting frame; 303, second connecting frame; 304, telescopic rod; 305, first protection plate; 306, second protection plate; 4, telescopic mechanism; 401, first outer shell; 402, second outer shell; 403, gear; 404, rack; 5, limit groove; 6, limit block; 7, chute; 8, slider; 9, ball; 10, groove; 11, support rod. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 to 6, this embodiment provides an active suspension for a driverless vehicle, including an active suspension body 1. A shock absorber 2 is fixedly connected to the top of the active suspension body 1. A protection mechanism 3 is arranged on the surface of the shock absorber 2, and a telescopic mechanism 4 is arranged on the surface of the shock absorber 2; The protection mechanism 3 includes bearings 301. The outer ring of the bearings 301 is fixedly connected to the inner wall of the shock absorber 2. The number of bearings 301 is two. A first connecting frame 302 is fixedly connected to the top of the inner ring of one bearing 301, and a second connecting frame 303 is fixedly connected to the top of the inner ring of the other bearing 301. The first connecting frame 302 and the second connecting frame 303 are used in cooperation. A telescopic rod 304 is fixedly connected between the opposite sides of the first connecting frame 302 and the second connecting frame. A first protection plate 305 is fixedly sleeved at one end of the telescopic rod 304, and a second protection plate 306 is fixedly sleeved at the other end of the telescopic rod 304. The first protection plate 305 and the second protection plate 306 are used in cooperation; By setting the protection mechanism 3, when the vehicle is driving, with the bearings 301 as the rotation center point, the first protection plate 305 and the second protection plate 306 rotate under the action of wind force. The first protection plate 305 and the second protection plate 306 play a role in blocking and changing the flying path of stones, preventing stones from entering the inside of the shock absorber 2 and causing potential damage to the shock absorber 2.

[0026] The telescopic mechanism 4 includes a first outer shell 401. The first outer shell 401 is fixedly connected to the top of the inner ring of the bearing 301. A second outer shell 402 is slidably connected to the inner wall of the first outer shell 401. One end of the second outer shell 402 is fixedly connected to the top of the inner ring of the bearing 301. Two racks 404 are fixedly connected to the inner wall of the first outer shell 401. A gear 403 is rotatably connected to the inner wall of the second outer shell 402. The surface of the gear 403 meshes with the inner wall of the rack 404; By setting the telescopic mechanism 4, through the telescopic first outer shell 401 and second outer shell 402, corresponding adjustments can be made according to the telescopic action of the shock absorber 2 to ensure full coverage of the shock absorber 2, effectively preventing sundries such as stones from entering the inside of the shock absorber 2, thereby prolonging the service life of the shock absorber 2 and improving driving safety.

[0027] A limiting groove 5 is opened on one side of the second connecting frame 303, and a limiting block 6 is fixedly connected to one side of the first connecting frame 302. The surface of the limiting block 6 contacts the inner wall of the limiting groove 5; By setting the limiting groove 5 and the limiting block 6, a telescopic path can be provided for the first connecting frame 302 and the second connecting frame 303, ensuring that the first connecting frame 302 and the second connecting frame 303 can make corresponding adjustments following the action of the shock absorber 2 and maintaining synchronous movement with the shock absorber 2.

[0028] The surface of the first protective plate 305 is provided with a sliding groove 7, and one side of the second protective plate 306 is fixedly connected with a sliding block 8. The surface of the sliding block 8 is in contact with the inner wall of the sliding groove 7. By providing the sliding groove 7 and the sliding block 8, a path is provided for the expansion and contraction of the first protective plate 305 and the second protective plate 306. When the shock absorber 2 is compressed or extended, the sliding block 8 will move correspondingly along the sliding groove 7, thereby driving the protective plate to expand and contract correspondingly.

[0029] A ball 9 is rotatably connected to the inner wall of the sliding block 8, and the surface of the ball 9 is in contact with the inner wall of the sliding groove 7. By providing the ball 9, the friction force when the sliding block 8 moves can be reduced, making the sliding block 8 move more smoothly.

[0030] The inner wall of the second housing 402 is provided with two grooves 10. By providing the grooves 10, a space for the gear 403 to rotate can be provided, ensuring the stability of the installation of the gear 403.

[0031] A support rod 11 is rotatably connected to the inner wall of the groove 10, and the gear 403 is fixedly connected to the surface of the support rod 11. By providing the support rod 11, the gear 403 can rotate more stably, providing additional support and fixation for the gear 403, thereby reducing the shaking and unstable factors during the rotation of the gear 403.

[0032] Both the first protective plate 305 and the second protective plate 306 are made of steel plate material, and both the first protective plate 305 and the second protective plate 306 are arc-shaped. By setting the first protective plate 305 and the second protective plate 306 to be arc-shaped, the path of the flying stones can be changed, preventing the stones from directly hitting the shock absorber 2.

[0033] The working principle of the present utility model is given below:

[0034] When the vehicle is moving, the gravel on the road will splash towards the shock absorber 2. The wind generated by the vehicle's movement will drive the first protective plate 305 and the second protective plate 306 to rotate. The bearing 301 serves as the center point of rotation, which can reduce the resistance when the first protective plate 305 and the second protective plate 306 rotate, making the rotation of the first protective plate 305 and the second protective plate 306 smoother. The rotation of the first protective plate 305 and the second protective plate 306 plays a role in blocking and changing the flight path of the gravel, preventing the gravel from directly flying towards the shock absorber 2. When the vehicle jolts, the shock absorber 2 will compress accordingly to absorb and reduce the vibration. The compression of the shock absorber 2 is transmitted through the first connecting frame 302, the second connecting frame 303, and the telescopic rod 304, thereby driving the first protective plate 305 and the second protective plate 306 to perform telescopic movements. The provision of the limiting groove 5 and the sliding groove 7 provides a clear movement path for the limiting block 6 and the sliding block 8. This not only ensures that the first protective plate 305 and the second protective plate 306 can perform telescopic movements along a predetermined trajectory. At the same time, the friction between the sliding block 8 and the sliding groove 7 can be reduced through the ball 9, so that the telescopic movements of the first protective plate 305 and the second protective plate 306 are smoother, avoiding the occurrence of jamming phenomena. The shock absorber 2 can be protected through the first outer shell 401 and the second outer shell 402, preventing the stray gravel from entering the shock absorber 2. The support rod 11 in the groove 10 can fix the gear 403. When jolting occurs and the shock absorber 2 compresses, the gear 403 moves on the surface of the rack 404, and the first outer shell 401 and the second outer shell 402 will also contract accordingly, being able to maintain close fit with the shock absorber 2. When the shock absorber 2 extends, the first outer shell 401 and the second outer shell 402 will also expand accordingly to ensure full coverage of the shock absorber 2, being able to prevent the gravel from damaging the shock absorber 2.

[0035] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. An active suspension for a driverless vehicle, characterized in that: It includes an active suspension body (1), a shock absorber (2) is fixedly connected to the top of the active suspension body (1), a protection mechanism (3) is arranged on the surface of the shock absorber (2), and a telescopic mechanism (4) is arranged on the surface of the shock absorber (2); the protection mechanism (3) includes bearings (301), the outer ring of the bearings (301) is fixedly connected to the inner wall of the shock absorber (2), the number of the bearings (301) is two, a first connecting frame (302) is fixedly connected to the top of the inner ring of one of the bearings (301), a second connecting frame (303) is fixedly connected to the top of the inner ring of the other bearing (301), the first connecting frame (302) and the second connecting frame (303) are used in cooperation, a telescopic rod (304) is fixedly connected between the opposite sides of the first connecting frame (302) and the second connecting frame (303), a first protection plate (305) is fixedly sleeved at one end of the telescopic rod (304), a second protection plate (306) is fixedly sleeved at the other end of the telescopic rod (304), and the first protection plate (305) and the second protection plate (306) are used in cooperation; the telescopic mechanism (4) includes a first outer shell (401), the first outer shell (401) is fixedly connected to the top of the inner ring of the bearing (301), a second outer shell (402) is slidably connected to the inner wall of the first outer shell (401), one end of the second outer shell (402) is fixedly connected to the top of the inner ring of the bearing (301), two racks (404) are fixedly connected to the inner wall of the first outer shell (401), two gears (403) are rotatably connected to both sides of the inner wall of the second outer shell (402), and the number of the gears (403) is two, and the two gears (403) are respectively engaged with the two racks (404).

2. The active suspension of an autonomous vehicle according to claim 1, characterized in that: A limiting groove (5) is formed on one side of the second connecting frame (303), a limiting block (6) is fixedly connected to one side of the first connecting frame (302), and the surface of the limiting block (6) is in contact with the inner wall of the limiting groove (5).

3. The active suspension of an autonomous vehicle according to claim 1, wherein: A sliding groove (7) is formed on the surface of the first protection plate (305), a sliding block (8) is fixedly connected to one side of the second protection plate (306), and the surface of the sliding block (8) is in contact with the inner wall of the sliding groove (7).

4. The active suspension of an autonomous vehicle according to claim 3, wherein: A ball (9) is rotatably connected to the inner wall of the sliding block (8), and the surface of the ball (9) is in contact with the inner wall of the sliding groove (7).

5. The active suspension of an autonomous vehicle according to claim 1, wherein: Two grooves (10) are formed on the inner wall of the second outer shell (402).

6. The active suspension of an autonomous vehicle according to claim 5, characterized in that: A support rod (11) is rotatably connected to the inner wall of the groove (10), and the gear (403) is fixedly connected to the surface of the support rod (11).

7. The active suspension of an autonomous vehicle according to claim 1, wherein: Both the first protection plate (305) and the second protection plate (306) are made of steel plate material, and both the first protection plate (305) and the second protection plate (306) are arc-shaped.

Images