CN114393966A - Slide rail type air composite suspension - Google Patents

Slide rail type air composite suspension Download PDF

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Publication number
CN114393966A
CN114393966A CN202210057080.9A CN202210057080A CN114393966A CN 114393966 A CN114393966 A CN 114393966A CN 202210057080 A CN202210057080 A CN 202210057080A CN 114393966 A CN114393966 A CN 114393966A
Authority
CN
China
Prior art keywords
swing arm
axle
air spring
hinged
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210057080.9A
Other languages
Chinese (zh)
Inventor
南洋
任传波
马克辉
陈雅洁
周鹏程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University of Technology
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Shandong University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University of Technology filed Critical Shandong University of Technology
Priority to CN202210057080.9A priority Critical patent/CN114393966A/en
Publication of CN114393966A publication Critical patent/CN114393966A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/48—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
    • B60G11/56—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also fluid springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0155—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B60G17/01933—Velocity, e.g. relative velocity-displacement sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B60G17/0523—Regulating distributors or valves for pneumatic springs
    • B60G17/0526—Distributor units, e.g. for retractable wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/42—Electric actuator

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention discloses a slide rail type air composite suspension, and aims to provide a novel multifunctional composite suspension structure which can effectively reduce the vibration of a vehicle body, can adjust the minimum ground clearance, and is simple in structure and convenient to install. The air spring type air spring comprises a swing arm support frame, an air spring air storage tank, a displacement sensor and an electric control unit. The sliding rail type air composite suspension structure designed by the invention can enable the swing arm support frame to move up and down when the tire is excited by the road surface to generate a large amount of vibration, the vibration of the tire is absorbed on the axle, the vibration of the vehicle body is effectively reduced, the operation stability and the driving smoothness of the vehicle are improved, and meanwhile, the electric control unit sends an inflation or deflation instruction to the air spring according to the identification signal of the displacement sensor, so that the trafficability characteristic and the high-speed stability are effectively improved.

Description

Slide rail type air composite suspension
The invention relates to the technical field of automobile suspensions, in particular to a sliding rail type air composite suspension.
Background
The suspension system is an important system in the automobile, connects the automobile body and the wheels, and has the functions of transferring force and torsion acting between the wheels and the automobile body, buffering impact force of road surface unevenness on the automobile body, and further reducing vibration of the automobile body so as to ensure that the automobile can run smoothly; the suspension system comprises a shock absorber, a shock absorption spring, an upper swing arm, a lower swing arm and the like. The suspension system also determines how well the vehicle is traveling and handling stability. When the automobile is driven on the road surface, the automobile is subjected to vibration and impact due to the change of the unevenness of the road surface, part of the impact force is absorbed by the tire, part of the impact force is absorbed by a suspension system between the tire and the automobile body, but most of the energy is transmitted to the automobile body to generate vibration, so that the driving smoothness and the steering stability of the automobile are reduced.
In the existing automobile suspension, the upper and lower swing arms are rigidly connected with an automobile body or a frame, so that no elastic deformation exists, and no buffering effect exists; the vibration absorber and the spiral spring are flexibly connected, elastic deformation exists, and the vibration absorber can play a role in buffering, so that vibration absorption and vehicle body supporting are achieved. The structure is simple in structure and low in cost, but the vibration reduction performance is poor, the comfort is limited, the connection and installation are not fastened due to long-time driving, the vibration reduction performance is further reduced, the suspension is damaged due to jolt of the road surface, the vibration of the vehicle body is larger, the service life is shortened, and the safety factor is low.
In view of the above, a novel suspension system is proposed to solve the above problems.
Disclosure of Invention
The invention aims to provide a slide rail type air composite suspension, which isolates vibration impact energy caused by road surface unevenness, reduces the vibration of a vehicle body, and improves the operation stability and the driving smoothness of a vehicle.
The invention relates to a slide rail type air composite suspension, which comprises an axle, an upper swing arm, a lower swing arm, a damping spring and a damper, and is characterized in that:
the device also comprises a mounting plate, a swing arm supporting frame, an air spring air storage tank, a displacement sensor and an electric control unit.
The mounting plate shaft on the automobile mounting plate is connected with the hub shaft of the tire through a shaft and is relatively static; one end of the upper swing arm is hinged with an upper swing arm mounting column on the mounting plate, and the other end of the upper swing arm is hinged with an upper swing arm mounting column of the swing arm supporting frame; one end of the lower swing arm is hinged with a lower swing arm mounting column on the mounting plate, and the other end of the lower swing arm is hinged with a lower swing arm mounting column of the swing arm supporting frame; the guide rail sliding block is arranged in a groove of the axle, and a gap is reserved between the groove and the guide rail sliding block, so that the axle and the swing arm supporting frame can move up and down; one end of the shock absorber is hinged with the lower mounting base of the lower swing arm, and the other end of the shock absorber is hinged with the upper mounting base of the axle; the air spring is arranged above the axle and used for bearing the vehicle body; the displacement sensor is arranged on the axle; one end of the electric control unit is connected with the displacement sensor, and the other end of the electric control unit is connected with the air spring air storage tank; the air spring air storage tank is connected with an air spring.
The guide rail sliding blocks of the swing arm supporting frame are movably connected with the axle, the guide rail sliding blocks are installed in the grooves of the axle, gaps are reserved between the guide rail sliding blocks and the grooves, and the swing arm supporting frame can move in the vertical direction in different degrees according to different received impacts.
One end of the upper swing arm is hinged to an upper swing arm mounting column on the mounting plate, the other end of the upper swing arm is hinged to an upper swing arm mounting column of the swing arm supporting frame, and the upper swing arm and the swing arm supporting frame can rotate freely.
One end of the lower swing arm is hinged to the lower swing arm mounting column on the mounting plate, the other end of the lower swing arm is hinged to the lower swing arm mounting column of the swing arm supporting frame, and the lower swing arm and the swing arm supporting frame can rotate freely.
The two sides of the axle are provided with grooves, the guide rail sliding blocks are arranged in the grooves, and gaps are reserved between the guide rail sliding blocks and the grooves and can move up and down.
The displacement sensor is arranged on one side of the axle and connected with the electric control unit.
The electric control unit is installed on one side of the axle, the input end of the electric control unit is connected with the displacement sensor, and the output end of the electric control unit is connected with the air spring air storage tank.
One end of the air spring air storage tank is connected with the electric control unit, the other end of the air spring air storage tank is connected with the air spring, the electric control unit transmits a signal to the electric control unit according to the displacement sensor, and the air spring is judged to be inflated or deflated.
The working principle of the slide rail type air composite suspension is as follows: the tyre is impacted by the excitation of the road surface, the residual vibration impact is continuously transmitted to the hub shaft and then to the mounting plate after being buffered by the tyre, and the mounting plate continuously transmits the impact force to the upper swing arm and the lower swing arm; the vibration of the upper swing arm and the lower swing arm is continuously transmitted to the swing arm supporting frame, the swing arm supporting frame vibrates up and down, so that the vibration energy transmitted to the axle by the tire is reduced, the vibration energy of the automobile body is more effectively reduced through further vibration isolation of the air spring, and the driving smoothness of the automobile is improved; meanwhile, the tire can be better attached to the ground by the vertical vibration of the swing arm supporting frame, and the operation stability of the vehicle is improved. The displacement sensor can identify the obstacle ground, transmits the obstacle ground to the electric control unit, and the electric control unit further transmits the obstacle ground to the air spring air storage tank, inflates the air spring, raises the height of the vehicle body, increases the minimum ground clearance, the approach angle and the departure angle of the vehicle, and improves the trafficability characteristic of the vehicle. The displacement sensor identifies a flat road surface, and the air spring is controlled by the electric control unit to deflate, so that the height of the mass center of the vehicle body is reduced, and the high-speed stability of the vehicle can be effectively improved.
The invention has the following beneficial effects:
1. the sliding rail type air composite suspension is simple in structure, the guide rail is designed in an embedded mode, and design space is saved.
2. According to the sliding rail type air composite suspension, the friction force is very small when the linear guide rail moves, and the sliding rail type air composite suspension is suitable for moving parts which move at high speed and frequently.
3. According to the slide rail type air composite suspension, vibration energy generated by the suspension due to the unevenness of the road surface can be absorbed, so that the vibration of the suspension is restrained, the vibration of an axle is reduced, so that the transfer energy of the vibration energy to a vehicle body is reduced, the vibration displacement of the vehicle body is reduced, and the driving smoothness and the operation stability of a vehicle are improved.
4. The slide rail type air composite suspension can adjust the longitudinal position of the swing arm supporting frame according to the influence of the unevenness of the road surface, so that the minimum ground clearance of a vehicle is effectively adjusted, and the trafficability and high-speed stability of the vehicle are improved.
5. According to the slide rail type air composite suspension, the inflation or deflation state of the air spring can be adjusted according to the displacement amount identified by the displacement sensor, so that the minimum ground clearance of a vehicle is further adjusted, and the trafficability and high-speed stability of the vehicle are improved.
Drawings
FIG. 1 is a schematic view of a slide rail type air composite suspension mounting structure of the present invention;
FIG. 2 is a schematic view of a structure of a vehicle axle in a slide rail type air composite suspension according to the present invention;
FIG. 3 is a schematic structural diagram of a swing arm support frame in a slide rail type air composite suspension according to the present invention;
FIG. 4 is a schematic view of a mounting plate structure in a slide rail type air composite suspension according to the present invention;
FIG. 5 is a schematic diagram of the upper swing arm structure in the slide rail type air composite suspension according to the present invention;
FIG. 6 is a schematic structural diagram of a lower swing arm in the slide rail type air composite suspension according to the present invention;
in the figure: 1. an air spring; 2. an axle; 2a, a groove; 3. a base is arranged on the shock absorber; 4. a damping spring; 5. a shock absorber; 6. an upper swing arm; 6a, 6b, 6c, 6d, upper swing arm mounting holes; 7. mounting a plate; 7a and 7b, and an upper swing arm mounting column; 7c and 7d, and a lower swing arm mounting column; 7e, mounting a plate shaft; 8. a base is arranged below the shock absorber; 9. a lower swing arm; 9a, 9b, 9c, 9d, lower swing arm mounting holes; 10. a swing arm support frame; 10a, mounting a column on the upper swing arm; 10b, a guide rail slide block; 10c, a lower swing arm mounting column; 11. an air spring air reservoir; 12. an electronic control unit; 13. and a displacement sensor.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The invention relates to a slide rail type air composite suspension, which comprises an axle 2, an upper swing arm 6, a lower swing arm 9, a damping spring 4 and a damper 5, and is characterized in that:
the air spring type air spring device further comprises a mounting plate 7, a swing arm supporting frame 10, an air spring 1, an air spring air storage tank 11, a displacement sensor 13 and an electric control unit 2.
The mounting plate shaft 7e on the automobile mounting plate 7 is connected with a hub shaft of a tire through a shaft and is relatively static; one ends 6a and 6b of the upper swing arm 6 are hinged with upper swing arm mounting columns 7a and 7b on the mounting plate 7, and the other ends 6c and 6d of the upper swing arm 6 are hinged with an upper swing arm mounting column 10a of a swing arm supporting frame 10; one ends 9a and 9b of the lower swing arm 9 are hinged with lower swing arm mounting columns 7c and 7d on the mounting plate 7, and the other ends 9c and 9d of the lower swing arm 9 are hinged with a lower swing arm mounting column 10c of the swing arm supporting frame 10; the rail sliding blocks 10b are arranged in the grooves 2a of the axle, and a gap is reserved between the grooves 2a and the rail sliding blocks 10b, so that the axle and the swing arm supporting frame 10 can move up and down; one end of the shock absorber 5 is hinged to a shock absorber lower mounting base 8 of the lower swing arm, and the other end of the shock absorber 5 is hinged to a shock absorber upper mounting base 3 of the axle; the air spring 1 is arranged above the axle 2 and used for bearing the vehicle body; the displacement sensor 13 is arranged on the axle 2; one end of the electric control unit 12 is connected with the displacement sensor 13, and the other end is connected with the air spring air storage tank 11; the air spring air storage tank 11 is connected with the air spring 1.
The guide rail sliding blocks 10b of the swing arm supporting frame 10 are movably connected with the axle 2, the guide rail sliding blocks 10b are installed in the grooves 2a of the axle, gaps are reserved between the guide rail sliding blocks 10b and the grooves 2a, and the swing arm supporting frame 10 can move up and down in different degrees according to different impacts.
One end of the upper swing arm 6 is hinged with the upper swing arm mounting columns 7a and 7b on the mounting plate 7, the other ends 6c and 6d of the upper swing arm 6 are hinged with the upper swing arm mounting column 10a of the swing arm support frame 10, and the upper swing arm 6 and the swing arm support frame 10 can rotate freely.
One end 9a, 9b of the lower swing arm 9 is hinged with a lower swing arm mounting column 7c, 7d on the mounting plate 7, the other end 9c, 9d of the lower swing arm 9 is hinged with a lower swing arm mounting column 10c of the swing arm support frame 10, and the lower swing arm 9 and the swing arm support frame 10 can freely rotate.
Grooves 2a are formed in two sides of the axle 2, guide rail sliders 10b are installed in the grooves 2a, and gaps are reserved between the guide rail sliders 10b and the grooves 2a and can move up and down.
The displacement sensor 13 is installed on one side of the vehicle axle 2 and connected with the electronic control unit 12.
The electric control unit 12 is arranged on one side of the axle 2, the input end of the electric control unit is connected with the displacement sensor 13, and the output end of the electric control unit is connected with the air spring air storage tank 11.
One end of the air spring air storage tank 11 is connected with the electric control unit 12, the other end of the air spring air storage tank 11 is connected with the air spring 1, the electric control unit 12 transmits a signal to the electric control unit 12 according to the displacement sensor 13, and the air spring 1 is judged to be inflated or deflated.
The road excitation generates impact on the tire, the residual vibration impact is continuously transmitted to the mounting plate 7 through the buffering of the tire, and the mounting plate 7 continuously transmits the impact force to the upper swing arm 6 and the lower swing arm 9; the vibration of the upper swing arm 6 and the lower swing arm 9 is continuously transmitted to the swing arm support frame 10, the swing arm support frame 10 vibrates up and down, so that the vibration energy transmitted to the axle 2 is reduced, the vibration energy of the automobile body is more effectively reduced through further vibration isolation of the air spring 1, and the driving smoothness of the automobile is improved; meanwhile, the up-and-down vibration of the swing arm support frame 10 can enable the tire to be better attached to the ground, and the operation stability of the vehicle is improved. Displacement sensor 13 distinguishable obstacle ground transmits for electrical unit 12, and electrical unit 12 and then transmits for air spring gas holder 11, inflates air spring 1, raises the automobile body height, has increased minimum ground clearance, approach angle and the departure angle of vehicle, has improved the trafficability characteristic of vehicle. The displacement sensor 13 recognizes a flat road surface, and the air spring 1 is controlled by the electric control unit 12 to deflate, so that the height of the mass center of the vehicle body is reduced, and the high-speed stability of the vehicle can be effectively improved.
Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the invention as claimed.

Claims (2)

1. The utility model provides a compound suspension of slide rail formula air, includes axle (2), goes up swing arm (6), lower swing arm (9), damping spring (4), shock absorber (5), its characterized in that:
the air spring device further comprises a mounting plate (7), a swing arm support frame (10), an air spring (1), an air spring air storage tank (11), a displacement sensor (13) and an electric control unit (2).
The mounting plate shaft (7e) on the automobile mounting plate (7) is connected with a hub shaft of a tire through a shaft and is relatively static; one ends (6a) and (6b) of the upper swing arm (6) are hinged with upper swing arm mounting columns (7a) and (7b) on the mounting plate (7), and the other ends (6c) and (6d) of the upper swing arm (6) are hinged with an upper swing arm mounting column (10a) of a swing arm support frame (10); one ends (9a) and (9b) of the lower swing arm (9) are hinged with lower swing arm mounting columns (7c) and (7d) on the mounting plate (7), and the other ends (9c) and (9d) of the lower swing arm (9) are hinged with a lower swing arm mounting column (10c) of the swing arm support frame (10); the rail sliding block (10b) is arranged in a groove (2a) of the axle, and a gap is reserved between the groove (2a) and the rail sliding block (10b) so that the axle and the swing arm support frame (10) can move up and down; one end of the shock absorber (5) is hinged with a shock absorber lower mounting base (8) of the lower swing arm, and the other end of the shock absorber is hinged with a shock absorber upper mounting base (3) of the axle; the air spring (1) is arranged above the axle (2) and used for bearing the vehicle body; the displacement sensor (13) is arranged on the axle (2); one end of the electric control unit (12) is connected with the displacement sensor (13), and the other end is connected with the air spring air storage tank (11); the air spring air storage tank (11) is connected with the air spring (1).
The guide rail sliding blocks (10b) of the swing arm supporting frame (10) are movably connected with the axle (2), the guide rail sliding blocks (10b) are installed in the grooves (2a) of the axle, gaps are reserved between the guide rail sliding blocks (10b) and the grooves (2a), and the swing arm supporting frame (10) can move in the vertical direction in different degrees according to different received impacts.
2. A slide air hybrid suspension according to claim 1, wherein: grooves (2a) are formed in two sides of the axle (2), the guide rail sliding blocks (10b) are installed in the grooves (2a), and gaps are reserved between the guide rail sliding blocks (10b) and the grooves (2a) and can move up and down.
CN202210057080.9A 2022-01-19 2022-01-19 Slide rail type air composite suspension Pending CN114393966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210057080.9A CN114393966A (en) 2022-01-19 2022-01-19 Slide rail type air composite suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210057080.9A CN114393966A (en) 2022-01-19 2022-01-19 Slide rail type air composite suspension

Publications (1)

Publication Number Publication Date
CN114393966A true CN114393966A (en) 2022-04-26

Family

ID=81231510

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210057080.9A Pending CN114393966A (en) 2022-01-19 2022-01-19 Slide rail type air composite suspension

Country Status (1)

Country Link
CN (1) CN114393966A (en)

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