CN112455174A - Air suspension system and vehicle - Google Patents
Air suspension system and vehicle Download PDFInfo
- Publication number
- CN112455174A CN112455174A CN201910843281.XA CN201910843281A CN112455174A CN 112455174 A CN112455174 A CN 112455174A CN 201910843281 A CN201910843281 A CN 201910843281A CN 112455174 A CN112455174 A CN 112455174A
- Authority
- CN
- China
- Prior art keywords
- lower guide
- guide arm
- suspension system
- shaped thrust
- axle
- 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
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 97
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000035939 shock Effects 0.000 claims abstract description 26
- 239000006096 absorbing agent Substances 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 9
- 238000013016 damping Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/27—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid 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
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
Abstract
The invention discloses an air suspension system and a vehicle, wherein the air suspension system comprises at least one air spring, at least one shock absorber and a guide mechanism, wherein the guide mechanism comprises a V-shaped thrust rod, two lower guide arm supports and two lower guide arms.
Description
Technical Field
The invention relates to the field of machinery, in particular to an air suspension system and a vehicle.
Background
The ride system of a vehicle typically includes wheels, a frame, axles, and suspensions. The axle is connected to the frame via a suspension. Wheels are mounted at both ends of the axle. The suspension is used for transmitting force and moment acting between the wheels and the vehicle frame, buffering impact force transmitted to the vehicle frame or the vehicle body from an uneven road surface, and attenuating vibration caused by the impact force so as to ensure that the vehicle can run smoothly.
The air suspension is a common suspension, and has the advantages of good driving smoothness, small road impact, capability of realizing height adjustment of a vehicle frame and the like. The single-bridge double-air-bag air suspension has the advantages of simple structure, low cost and the like, and is widely adopted in the current air suspension scheme.
The existing single-axle double-airbag air suspension 1P mainly comprises three parts, namely a guide mechanism 10P, a damping mechanism 20P and an air spring 30P, wherein the guide mechanism 10P generally adopts a flexible guide arm 11P and a transverse thrust 12P rod structure, and as shown in the attached drawing 1, the guide arm 11 is fixedly connected with an axle through a U-shaped bolt and is hinged with a frame through a rubber bushing. The guide arm 11P serves for longitudinal guidance, not shown for the axle and the frame. Further, the guide arm 11P can be elastically deformed, and the air spring 30P can be acted in series. When the axle is twisted, the left and right guide arms 11P are deformed in opposite directions, suppressing the lateral inclination of the vehicle, and at the same time, functioning as a lateral stabilizer. The lateral thrust rod 12P is transversely attached to the frame and axle and receives lateral forces from the vehicle.
The single-bridge double-airbag structure has the advantages of simple structure and light weight, but has some problems. One of the problems is that the guide arm 11P needs to be designed with a limited life span in order to ensure a certain deflection, which makes the guide arm 11P need to be replaced periodically. The limit of the guide mechanism 10P is applied, when the axle twists, the guide arm 11P interferes with the movement of the lateral thrust rod 12P, the interference needs to be eliminated by the additional elastic deformation of the rubber bushing and the frame, when the road condition is poor and the jumping stroke of the axle is large, the deformation load of the rubber bushing and the frame is large, and the problems of local cracking of the frame, tearing of the rubber bushing and the like are easy to occur. The guide mechanism 10P is similar to a single-trailing-arm suspension, the change of the inclination angle of the axle is large in the jumping process of the suspension, and if the matching is not good, the efficiency and the service life of the universal joint of the transmission shaft are greatly influenced.
In addition, the interfaces of the suspension, the axle and the frame are completely different from the leaf spring balance suspension, and the mould opening of the interfaces of the suspension, the axle and the frame is required to be redesigned. The whole development investment is large, and the development verification period is long
Disclosure of Invention
It is an object of the present invention to provide an air suspension system and a vehicle in which a guide arm of the air suspension system can be designed based on an infinite life.
It is another object of the present invention to provide an air suspension system and a vehicle in which a bush and a frame of the air suspension system of the vehicle can be free from the need to withstand an additional deformation load caused by the movement interference from a guide mechanism.
It is another object of the present invention to provide an air suspension system and a vehicle in which the lower guide arm assembly of the air suspension system of the vehicle is highly integrated.
Another object of the present invention is to provide an air suspension system and a vehicle, wherein part of the parts of the air suspension system of the vehicle and the original leaf spring balanced suspension can be commonly used.
According to one aspect of the present invention, there is provided an air suspension system for a vehicle, wherein the air suspension system comprises:
two air springs;
a V-shaped thrust rod, wherein the V-shaped thrust rod has three ends, two lateral ends and a middle end;
a lower guide arm assembly, wherein said lower guide arm assembly comprises a left guide arm and a right guide arm;
two lower guide arm supports, wherein two of said lower guide arm supports are respectively fixed to said vehicle frame and extend downward from said vehicle frame, said left guide arm is hinged to said lower guide arm on the left side, said right guide arm is hinged to said lower guide arm on the right side, wherein two of said side ends of said V-shaped thrust rod are respectively mounted to said vehicle frame, said middle end of said V-shaped thrust rod is supported to an axle of the vehicle, wherein said V-shaped thrust rod is respectively hinged to said vehicle frame and said axle, wherein said axle is hingedly supported to said lower guide arm assembly to form a parallelogram guide mechanism.
According to one aspect of the present invention, there is provided an air suspension system for a vehicle, wherein a frame of the vehicle comprises two side-by-side longitudinal beams, wherein the air suspension system comprises:
at least one air spring;
at least one vibration damper; and
a guiding mechanism, wherein said guiding mechanism comprises a V-shaped thrust bar, at least two V-shaped thrust bar supports, two lower guide arm supports and two lower guide arms, wherein two of said lower guide arm supports extend respectively across two of said longitudinal beams of the vehicle frame, each of said lower guide arm supports is mounted with one of said lower guide arms, wherein each of said lower guide arm supports has a high end and a low end, wherein the vehicle frame is located at said high end of said lower guide arm support, and said lower guide arm is located at said low end of said lower guide arm support, wherein said V-shaped thrust bar has two lateral ends and a middle end, said lateral ends of said V-shaped thrust bar are hinged to said V-shaped thrust bar supports, said V-shaped thrust bar supports are connected to two of said longitudinal beams of the vehicle frame, wherein a vehicle axle of the vehicle is provided with an upper support and a lower support, respectively, wherein said intermediate end portion of said V-shaped thrust rod is attached to said upper bracket and said lower guide arm is attached to said lower bracket, wherein said air spring has a high end and a low end, wherein said high end of said air spring is attached to the frame and said low end of said air spring is attached to said lower guide arm, wherein said shock absorber has a high end and a low end, wherein said high end of said shock absorber is attached to the frame and wherein said low end of said shock absorber is attached to said lower guide arm.
According to an embodiment of the present invention, each of the lower guide arms has an air spring mounting hole for mounting the air spring, a lower guide arm support mounting hole for mounting the lower guide arm support, and an axle mounting hole for mounting the lower support, wherein the axle mounting hole is located between the air spring mounting hole and the lower guide arm support mounting hole.
According to an embodiment of the present invention, the air spring and the lower guide arm support are respectively located at both end portions of the lower guide arm.
According to an embodiment of the present invention, the lower guide arm has a damper mounting hole, wherein the damper mounting hole is located between the lower guide arm bracket mounting hole and the axle mounting hole, wherein the damper hole is closer to the lower guide arm bracket mounting hole than the axle mounting hole.
According to an embodiment of the present invention, the guiding mechanism further comprises at least two torsion bars arranged side by side, wherein the torsion bars are located between and connected to the two lower guide arms, and when the lower guide arms have a tendency to move in opposite directions, the torsion bars are deformed to resist the tendency of the lower guide arms to move in opposite directions.
According to an embodiment of the present invention, the torsion bar is a spring steel bent pipe, and the torsion bar is respectively mounted to the two lower guide arms by interference coupling and flat key positioning.
According to an embodiment of the present invention, the lower guide arm has a torsion bar mounting hole, wherein the torsion bar mounting hole is located between the air spring mounting hole and the lower guide arm bracket mounting hole.
According to an embodiment of the present invention, the upper bracket extends outward from the axle and is located at a middle position of the axle.
According to an embodiment of the present invention, the number of the lower brackets is two, and the lower brackets extend downward from two ends of the axle respectively.
According to an embodiment of the present invention, the air suspension system further comprises two V-shaped thrust rod supports, wherein two of the V-shaped thrust rod supports are respectively disposed on two of the longitudinal beams of the frame and located inside the frame, the V-shaped thrust rod is supported by the V-shaped thrust rod supports, wherein the V-shaped thrust rod supports and the lower guide arm supports are respectively located inside and outside the same portion of the frame.
According to an embodiment of the invention, each of said lower guide arms is hinged to said lower guide arm carrier and to the axle, respectively.
According to an embodiment of the invention, said V-shaped thrust rods are hinged to the frame and the axle, respectively.
According to an embodiment of the invention, the projection of the lower guide arm and the V-shaped thrust rod on the longitudinal plane of the vehicle can form a parallelogram.
According to an embodiment of the present invention, the number of the shock absorbers is two, each of the lower guide arms supports one of the shock absorbers, the number of the air springs is two, and each of the lower guide arms supports one of the air springs.
According to another aspect of the present invention, there is provided a vehicle comprising:
a drive system; and
a ride system, wherein said ride system is drivably coupled to said drive system, wherein said ride system comprises two axles, a frame, four wheels, and an air suspension system, wherein each two of said wheels are mounted to one of said axles, wherein said air suspension system is coupled to said axle to said frame.
An air suspension system for a vehicle, wherein a frame of the vehicle includes two longitudinal beams, comprising:
at least one air spring;
at least one vibration damper; and
a guide mechanism, wherein said guide mechanism comprises a V-shaped thrust bar, at least two V-shaped thrust bar supports, a lower guide arm support and two lower guide arms, wherein two of said lower guide arm supports extend respectively across two longitudinal beams of said vehicle frame, each of said lower guide arm supports is mounted to one of said lower guide arms, wherein each of said lower guide arm supports has a high end and a low end, wherein the vehicle frame is located at said high end of said lower guide arm support, and said lower guide arm is located at said low end of said lower guide arm support, wherein said V-shaped thrust bar has two lateral ends and a middle end, said two lateral ends of said V-shaped thrust bar are hinged to said V-shaped thrust bar supports, said V-shaped thrust bar supports are connected to two of said longitudinal beams of the vehicle frame, wherein a vehicle axle of the vehicle is provided with an upper support and a lower support, respectively, wherein said intermediate end portion of said V-shaped thrust rod is attached to said upper bracket and said lower guide arm is attached to said lower bracket, wherein said air spring has a high end and a low end, wherein said high end of said air spring is attached to the frame and said low end of said air spring is attached to said lower guide arm, wherein said shock absorber has a high end and a low end, wherein said high end of said shock absorber is attached to said frame, wherein said low end of said shock absorber is attached to said lower guide arm assembly.
According to an embodiment of the present invention, the lower guide arm assembly includes two lower guide arms, wherein the two lower guide arms are respectively hinged to the axle through the lower supports, and the two lower guide arms are respectively hinged to the lower guide arm supports on the same side.
According to an embodiment of the present invention, the lower guide arm assembly further includes two torsion bars, wherein the two torsion bars are connected to the two lower guide arms, respectively, in a crossing manner.
According to an embodiment of the present invention, the air spring and the lower guide arm support are respectively located at two ends of the lower guide arm at the same side.
According to an embodiment of the present invention, the number of the lower guide arm assemblies is two, the lower guide arm assemblies are respectively located in front of and behind the lower guide arm support, the number of the air springs is four, and each of the lower guide arms is supported with one of the air springs.
According to another aspect of the present invention, there is provided a vehicle, wherein the vehicle includes:
a drive system; and
a travel system, wherein said travel system is drivably connected to said drive system, wherein said travel system comprises two axles, a frame, four wheels, and an air suspension system, wherein each two of said wheels are mounted to one of said axles, wherein said air suspension system is connected to said axle to said frame, wherein said air suspension system comprises:
at least one air spring;
at least one vibration damper; and
a guide mechanism, wherein said guide mechanism comprises a V-shaped thrust rod, V-shaped thrust rod supports, two lower guide arm supports and a lower guide arm assembly, wherein each of said lower guide arm supports has a high end and a low end, said high end is connected to the outboard side of the vehicle, said low end is connected to the lower guide arm assembly, wherein said V-shaped thrust rod has two side ends and a middle end, said two side ends of said V-shaped thrust rod are respectively mounted to said V-shaped thrust rod supports, said V-shaped thrust rod supports are mounted to the inboard side of the vehicle frame at the same position as the lower guide arm supports, wherein a vehicle axle of the vehicle is respectively provided with an upper support and a lower support, wherein said middle end of said V-shaped thrust rod is connected to said upper support, said lower guide arm assembly is connected to said lower support, wherein said air spring has a high end and a low end, wherein said high end of said air spring is attached to said frame and said low end of said air spring is attached to said lower guide arm, wherein said shock absorber has a high end and a low end, wherein said high end of said shock absorber is attached to said frame, and wherein said low end of said shock absorber is attached to said lower guide arm.
Drawings
FIG. 1 is a schematic diagram of a single bridge dual air bag air suspension according to the prior art.
FIG. 2 is a schematic diagram of a vehicle according to a preferred embodiment of the present invention.
FIG. 3 is a schematic view of an air suspension system according to a preferred embodiment of the present invention, illustrating the air suspension system mounted to a vehicle frame and an axle mounted to the air suspension system.
Fig. 4 is a schematic view of the air suspension system according to the above preferred embodiment of the present invention, illustrating the air suspension system of a single axle.
Fig. 5 is a partial schematic view of a guide structure of the air suspension system according to the above preferred embodiment of the present invention.
Fig. 6 is a schematic view of an axle of the vehicle according to the above preferred embodiment of the present invention, illustrating the axle provided with an upper bracket and a lower bracket.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 2 to 6, an air suspension system 1 according to a preferred embodiment of the present invention is illustrated. The air suspension system 1 can be applied to a vehicle 1000. The vehicle 1000 comprises a vehicle body 100 and a traveling system 200, wherein the traveling system 200 comprises at least one axle 201, at least one wheel 202, a frame 203, and the air suspension system 1.
The vehicle body 100 may include a driving system 101, a braking system, a steering system, a control system, etc., wherein the traveling system 200 is drivably connected to the driving system 101, and the braking system, the steering system, and the control system are respectively mounted to the frame 203 of the traveling system 200. The braking system is used for braking the wheels 202, the steering system is used for steering the wheels 202, and the running system 200, the driving system 101, the braking system and the steering system are respectively and controllably connected to the control system. The control system may be implemented as a steering wheel or as a remote control. The vehicle 1 may be an unmanned vehicle. Optionally, the vehicle 1 is a heavy-duty traction vehicle.
The air suspension system 1 is mounted to the vehicle frame 203, and the axle 201 is mounted to the air suspension system 1. The wheels 203 are mounted to the axle 201.
The air suspension system 1 can transmit force and moment acting between the wheel 203 and the vehicle frame 203 during the running of the vehicle 1000, and cushion the impact force transmitted to the vehicle frame 203 or the vehicle body from an uneven road surface, and damp the vibration caused thereby to ensure smooth running of the vehicle.
The air suspension system 1 comprises a guide mechanism 10, a damping mechanism 20 and at least one air spring 30, wherein the air spring 30 can bear and transmit vertical load, and the impact caused by uneven road surface, emergency braking, acceleration and turning or the influence caused by the change of the position of a vehicle body is alleviated. The air spring 30 is capable of maintaining a resilient connection between the frame 203 and the axle 201. The damping mechanism 20 serves to damp vibrations due to the elastic system. The guide mechanism 10 enables the wheel 203 to move relative to the body of the vehicle 1000 according to a certain movement locus while transmitting various forces and moments other than vertical forces.
The axle 201 is attached to the guide mechanism 10 of the air suspension system 1, both ends of the damper mechanism 20 are attached to the guide mechanism 10 and the frame 203, respectively, and both ends of the air spring 30 are attached to the guide mechanism 10 and the frame 203, respectively. The shock absorbing mechanism 20 and the air spring 30 are located between the vehicle frame 203 and the guide mechanism 10, and the vehicle frame 203 is connected to the guide mechanism 10.
Specifically, the guiding mechanism 10 includes at least one V-shaped thrust rod 11, two V-shaped thrust rod supports 50, two lower guide arm supports 12, and a lower guide arm assembly 13, wherein the V-shaped thrust rod 11 is located above the lower guide arm supports 12 and the lower guide arm assembly 13, the V-shaped thrust rod 11 is connected to the frame 203 through the V-shaped thrust rod supports 50, and the lower guide arm assembly 13 is connected to the frame 203 through the lower guide arm supports 12.
The V-shaped thrust rod 11 has three end portions, two side end portions 111 and a middle end portion 112, wherein the V-shaped thrust rod 11 includes a first partial thrust rod 113 and a second partial thrust rod 114, wherein an included angle is formed between the first partial thrust rod 113 and the second partial thrust rod 114, so that the first partial thrust rod 113 and the second partial thrust rod 114 present a V shape.
The side end 111 of the V-shaped thrust rod 11 is connected to the V-shaped thrust rod holder 50, the V-shaped thrust rod holder 50 is fixed to the inside of the vehicle frame 203, and the side end 111 of the V-shaped thrust rod 11 is connected to the vehicle frame 203 through the V-shaped thrust rod holder 50. The intermediate end 112 of the V-shaped thrust rod 11 is attached to the axle 201.
The lower guide arm supports 12 are formed by extending downward from the vehicle frame 203. The lower guide arm assembly 13 includes two lower guide arms 131, one end of each lower guide arm support 12 is fixed to the frame 203, and the other end of the lower guide arm support 12 is connected to the lower guide arms 131.
The frame 203 includes two longitudinal beams, wherein the two longitudinal beams are respectively located at the left and right sides, and the longitudinal beams are located in the length direction of the vehicle 1000. One of the stringers is provided with one of the lower guide arm supports 12 and the V-shaped thrust rod support 50.
The lower guide arm 131 is connected to the vehicle frame 203 through the lower guide arm support 12. Specifically, the lower guide arm 131 on the left side is connected to the lower guide arm support 12 on the same side, and the lower guide arm 131 on the right side is connected to the lower guide arm support 12 on the same side.
For the axle 201, the V-shaped thrust rod 11 is connected to the axle 201 and located above the axle 201, while the lower guide arm 131 of the lower guide arm assembly 13 is connected below the axle 201.
The damper mechanism 20 includes at least two dampers 21, wherein the dampers 21 are supported by the lower guide arm 131, one end of the damper 21 is connected to the lower guide arm 131, and the other end of the damper 21 is connected to the frame 203. Specifically, the damper 21 has a high end and a low end, wherein the high end of the damper 21 is located at a higher position than the low end of the damper 21. The high end of the shock absorber 21 is connected to the frame 203, and the low end of the shock absorber 21 is connected to the lower guide arm of the lower guide arm assembly 13.
For the lower guide arm 131 of the lower guide arm assembly 13, the lower guide arm 131 is connected between the lower guide arm support 12 and the axle 201 for guiding, and the other end of the lower guide arm 131 is connected with the lower end of the air spring 30 for bearing. The lower guide arm 131 has the functions of connection guiding and bearing, the function integration of the whole lower guide arm assembly 13 is high, and the structure of the air suspension system 11 is simplified
Further, the lower guide arm assembly 13 includes at least two torsion bars 132, wherein the torsion bars 132 are located between the two lower guide arms 131.
When the vehicle 1000 rolls and the two ends of the axle 201 bounce in opposite directions, the left and right guide arms 131 move in opposite directions, the torsion bar 132 of the lower guide arm 131 is torsionally deformed to resist the tendency of the axle 201 to twist, and the lower guide arm assembly 13 can act as a lateral stabilizer.
Specifically, each lower guide arm 131 of the lower guide arm assembly 13 has at least one torsion bar mounting hole 1311, an axle mounting hole 1312, and a lower guide arm bracket mounting hole 1313, wherein the torsion bar mounting hole 1311 is used for mounting to the torsion bar 132, the axle mounting hole 1312 is used for coupling to the axle 201, and the lower guide arm bracket mounting hole 1313 is used for coupling to the lower guide arm bracket 12.
The axle mounting hole 1312, the torsion bar mounting hole 1311, and the lower guide arm bracket mounting hole 1313 are sequentially arranged at the lower guide arm 131. The torsion bar mounting holes 1311 are located between the axle mounting holes 1312 and the lower guide arm bracket mounting holes 1313.
The number of the torsion bar mounting holes 1311 corresponds to the number of the torsion bars 132. Alternatively, the torsion bar 132 is implemented as a spring steel elbow that is mounted to the two lower guide arms 131 and between the two lower guide arms 131 by interference fit and flat key positioning.
When both ends of the axle 201, which are mounted to the lower guide arm assembly 13 through the axle mounting holes 1312, are twisted, the two lower guide arms 131, which are respectively connected to the axle 201, have a tendency to twist, and at this time, the torsion bar 132, which is connected between the two lower guide arms 131, can be torsionally deformed to resist the tendency of the axle 201 to twist, so that the entire guide arm assembly can function as a lateral stabilizer.
Further, the air suspension system 1 includes a plurality of bushings 40, wherein one of the bushings 40 is mounted to the lower guide arm bracket mounting hole 1313, and the lower guide arm bracket 12 has a high end and a low end, wherein the high end of the lower guide arm bracket 12 is connected to the vehicle frame 203 and the low end of the lower guide arm bracket 12 is connected to the lower guide arm 131. The lower guide arm 131 and the lower guide arm support 12 are coupled by the bushing 40 being mounted to the lower guide arm support mounting hole 1313.
Alternatively, the bushing 40 mounting the lower guide arm bracket mounting hole 1313 may be implemented as a rubber bushing 40.
It is worth mentioning that the bushing 40 located at the lower guide arm support mounting hole 1313 and the lower guide arm support 12 located at the vehicle frame 203 are coupled in an articulated manner, so that the lower guide arm 131 of the lower guide arm assembly 13 is articulated to the lower end of the lower guide arm support 12. The other bushing 40 is mounted to the axle mounting hole 1312, and the axle 201 and the lower guide arm 131 of the lower guide arm assembly 13 are coupled by the way in which the bushing 40 is mounted to the axle mounting hole 1312. Alternatively, the bushing 40 mounted to the axle mounting hole 1312 may be implemented as a rubber bushing 40.
It is worth mentioning that the bushing 40 located in the axle mounting hole 1312 is hinged to the axle 201.
Specifically, the axle 201 is provided with an upper bracket 2011 and a lower bracket 2012, wherein the upper bracket 2011 is provided at the axle 201, and preferably, the upper bracket 2011 is located at a middle position of the axle 201. The V-shaped thrust rod 11 is attached to the upper mount 2011.
The lower bracket 2012 is located at the vehicle axle 201, and the vehicle axle 201 is connected to the lower guide arm 131 of the lower guide arm assembly 13 through the lower bracket 2012. Preferably, the number of the lower seats 2012 is two, and two of the lower seats 2012 are respectively located at two sides of the upper seat 2011 and located inside two hubs of the axle 201.
The lower guide arm 131 is hingedly connected to the axle 201 through the bushing 40 mounted to the axle mounting hole 1312 of the lower guide arm 131.
Further, the middle end of the V-shaped thrust rod 11 is hinged to the upper seat 2011 provided to the axle 201.
The air suspension system 1 further includes at least two V-shaped thrust rod mounts 50, wherein the V-shaped thrust rod mounts 50 are located on the frame 203 and are located inboard of the side rails of the frame 203. Each of the stringers is provided with one of the V-shaped thrust rod mounts 50.
The side end 111 of the V-shaped thrust rod 11 is connected to the V-shaped thrust rod bracket 50, so that the V-shaped thrust rod 11 is supported to the side member of the vehicle frame 203 by the V-shaped thrust rod bracket 50.
For the V-shaped thrust rod 11, there are three pivot points, two at the two longitudinal beams of the frame 203 and one at the axle 201. Since the V-shaped thrust rod 11 can bear a side load, the horizontal movement of the axle 201 is limited, and the movement of the V-shaped thrust rod is coordinated with the movement of the lower guide arm 131, and no movement interference exists, so that each of the bushings 40 and the frame 203 cannot bear an additional deformation load caused by the movement interference.
Alternatively, the V-shaped thrust rod support 50 and the lower guide arm support 12 are attached to the inside and outside of the same portion of the vehicle frame 203, respectively. In other words, the V-shaped thrust rod support 50 is located inside the vehicle frame 203, and the lower guide arm support 12 is located outside the vehicle frame 203. The lower guide arm support 12 has a high end and a low end, wherein the high end of the lower guide arm support 12 is located at a higher position than the low end of the lower guide arm support 12. The high end of the lower guide arm support 12 corresponds in position to the V-shaped thrust rod support 50.
For the entire air suspension system 1, the V-shaped thrust rod 11 is located above the lower guide arm 131. The V-shaped thrust rods 11 are respectively hinged to the vehicle frame 203 and the vehicle axle 201, and the lower guide arms 131 are respectively hinged to the lower guide arm holders 12 provided to the vehicle frame 203 and the vehicle axle 201.
The axle 201 is connected to the frame 203 via the upper V-shaped thrust rod 11 and the lower guide arm 131 of the lower guide arm assembly 13. On the longitudinal plane of the vehicle 1000, the V-shaped thrust rod 11 and the lower guide arm 131 of the lower guide arm assembly 13 constitute a parallelogram guide mechanism. Alternatively, in the lateral projection of the vehicle 1000, the V-shaped thrust rod 11 and the lower guide arm assembly 13 form a parallelogram guide mechanism.
When the air suspension system 1 is bouncing up and down due to external force, the inclination angle of the axle 201 is not changed.
It is worth mentioning that, because the lower guide arm 131 is hinged to the axle 201, the lower guide arm 131 does not need to provide flexibility, so that the lower guide arm 131 can be designed for an infinite life, and the user does not need to replace the lower guide arm 131 periodically, thereby facilitating the use of the entire air suspension system 1.
Further, in the present embodiment, each axle 201 corresponds to two air springs 30, and the air springs 30 are located between the vehicle frame 203 and the lower guide arm 131 of the lower guide arm assembly 13. Optionally, the air spring 30 is located at one end of the lower guide arm 131. One end of the lower guide arm 131 may be provided with an air spring holder 60. The air spring 30 is mounted to the air spring support 60.
That is, the air spring 30 has a high end and a low end, wherein the high end of the air spring 30 is located at a position higher than the low end of the air spring 30, the high end of the air spring 30 is connected to the frame 203, and the low end of the air spring 30 is connected to the lower guide arm of the lower guide arm assembly 13 through the air spring support 60. The air spring 30 may be a bladder type air spring or a diaphragm type air spring. It will of course be appreciated by those skilled in the art that the type of air spring 30 is not limited to the examples described above.
The lower guide arm 131 has an air spring bracket mounting hole 1314, wherein the air spring bracket mounting hole 1314 and the lower guide arm bracket mounting hole 1313 are located at both ends, respectively. The air spring support mounting hole 1314 is used for mounting the air spring support 60. The air spring support 60 may be fixedly mounted to the guide arm 131 by means of bolts or the like.
One of the axles 201 corresponds to two of the air springs 30, and the two air springs 30 are respectively mounted on the two lower guide arms 131.
Further, the connection and guiding manner of the axle 201 and the frame 203 is substantially the same as that of the parallelogram guiding mechanism 10 of the current leaf spring balanced suspension, so that the V-shaped thrust rod 11, the V-shaped thrust rod support 50, the lower guide arm 131 connected to the axle 201, the lower guide arm support 12, and the like of the air suspension system 1 provided by the invention can be used in a cross-platform manner with a leaf spring balanced suspension, and thus, there is no need to redesign a mold for the interface positions of the air suspension system 1, the frame 203, and the axle 201 provided by the invention, so as to facilitate the practicability of the air suspension system 1.
Further, the air suspension system 1 can be applied not only to one of the axles 201 of the vehicle 1000, but also to both of the axles 201 of the vehicle 1000.
One of the axles 201 is located at the front, the other axle 201 is located at the rear, and the air suspension system 1 provides two of the V-shaped thrust rods 11, two of the lower guide arm assemblies 13 and two of the lower guide arm brackets 12.
Two of the V-shaped thrust rods 11 are oppositely disposed to the frame 203. Specifically, the air suspension system 1 includes two V-shaped thrust rod mounts 50, wherein the two V-shaped thrust rod mounts 50 are respectively located at two longitudinal beams of the vehicle frame 203. The V-shaped thrust rods 11 are respectively located at the front and rear sides of the V-shaped thrust rod support 50.
The two side end portions 111 of the front one of the V-shaped thrust rods 11 are connected to the front sides of the two V-shaped thrust rod holders 50, respectively. The two side end portions 111 of the other V-shaped thrust rod 11 at the rear are connected to the rear sides of the two V-shaped thrust rod holders 50.
The two V-shaped thrust levers 11 are respectively hinged to the V-shaped thrust lever support 50. The front one of the V-shaped thrust levers 11 is hinged to the vehicle axle 201 located forward, and the rear one of the V-shaped thrust levers 11 is hinged to the vehicle axle 201 located rearward.
The number of the lower guide arm assemblies 13 is two, and the number of the lower guide arms 131 is four. In the side member on the side of the vehicle frame 203, one of the lower guide arms 131 extends forward from the lower guide arm support 12, and the other lower guide arm 131 extends rearward from the lower guide arm support 12. The two lower guide arms 131 are respectively hinged to the lower guide arm support 12.
As for the lower guide arms 131, one of the air springs 30 is supported at an end of the corresponding one of the lower guide arms 131 remote from the lower guide arm support 12.
The vehicle axle 201 located at the front is mounted to the left and right lower guide arms 131 of the lower guide arm assembly 13 located at the front, and the vehicle axle 201 located at the front is located between the lower guide arm bracket 12 and the air spring 30 located at the front.
The rear axle 201 is mounted to the left and right lower guide arms 131 of the rear lower guide arm assembly 13, and the rear axle 201 is located between the lower guide arm bracket 12 and the rear air spring 30.
That is, the four air springs are respectively located outside the axle 201 and on the lower guide arm 131 of the lower guide arm assembly 13. The upper end of the air spring 30 is connected to the frame 203, and the lower end of the air spring 30 is connected to the lower guide arm 131. The air spring 30 can play a role in bearing and buffering energy storage.
The number of the shock absorbers 21 of the shock absorbing mechanism 20 is four, and each of the shock absorbers 21 is located between the vehicle frame 203 and the lower guide arm 131 of the lower guide arm assembly 13 and is mounted to the vehicle frame 203 and the lower guide arm 131, respectively. The damper 21 can perform vibration damping and limiting functions.
Each of the lower guide arms 131 is provided with one of the damper seats 70, wherein the damper seats 70 are located inside the lower guide arms 131, and each of the dampers 21 is mounted to the damper seats 70.
The air suspension system 1 provided by the invention realizes the application of the V-shaped thrust rod 11 and the parallelogram structure in a single-axle double-air-bag dependent air suspension, ensures that the time dip angle of the axle 201 is unchanged in the jumping range, and avoids the problem of motion interference existing in the conventional two-air-bag air suspension structure.
The air suspension system 1 provided by the invention provides the lower guide arm assembly 13 which integrates the functions of guiding, supporting and preventing heeling, the structure of the whole air suspension system 1 is simplified, and the integration and the light weight of parts are realized.
The air suspension system 1 provided by the invention realizes the sharing of partial parts of the balanced suspension with the leaf spring through the ingenious design of the parallelogram structure and the arrangement of related parts, so that the parts can be used universally across platforms, and the manufacturing and testing costs are reduced.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (21)
1. An air suspension system for a vehicle having a frame including two side-by-side rails, comprising:
at least one air spring;
at least one vibration damper; and
a guide mechanism, wherein said guide mechanism comprises a V-shaped thrust bar, at least two V-shaped thrust bar supports, two lower guide arm supports and two lower guide arms, wherein two of said lower guide arm supports extend respectively across two of said stringers of the vehicle frame, each of said lower guide arm supports having connected thereto one of said lower guide arms, wherein each of said lower guide arm supports has a high end and a low end, wherein the vehicle frame is located at said high end of said lower guide arm support, and said lower guide arm is located at said low end of said lower guide arm support, wherein said V-shaped thrust bar has two lateral ends and a middle end, said two lateral ends of said V-shaped thrust bar being respectively mounted to two V-shaped thrust bar supports fixed inside the vehicle frame, wherein a vehicle axle of the vehicle is respectively provided with an upper support and a lower support, wherein said middle end of said V-shaped thrust bar is connected to said upper support, said lower guide arm being attached to said lower bracket, wherein said air spring has a high end and a low end, wherein said high end of said air spring is attached to the frame and said low end of said air spring is attached to said lower guide arm, wherein said shock absorber has a high end and a low end, wherein said high end of said shock absorber is attached to the frame, wherein said low end of said shock absorber is attached to said lower guide arm.
2. The air suspension system of claim 1, wherein each of said lower guide arms has an air spring mounting hole for mounting said air spring, a lower guide arm bracket mounting hole for attaching said lower guide arm bracket, and an axle mounting hole for mounting said lower bracket, wherein said axle mounting hole is located between said air spring mounting hole and said lower guide arm bracket mounting hole.
3. The air suspension system of claim 2, wherein said air spring and said lower pilot arm support are located at both ends of said lower pilot arm, respectively.
4. The air suspension system of claim 2, wherein said lower pilot arm has a damper mounting hole, wherein said damper mounting hole is located between said lower pilot arm bracket mounting hole and said axle mounting hole, wherein said damper hole is closer to said lower pilot arm bracket mounting hole than to said axle mounting hole.
5. The air suspension system of claim 2, wherein said steering mechanism further comprises at least two torsion bars arranged side-by-side, wherein said torsion bars are located between and connected to said lower steering arms, respectively, and deform to resist the tendency of said lower steering arms to move in opposite directions when said lower steering arms have a tendency to move in opposite directions.
6. The air suspension system of claim 5, wherein said torsion bar is a spring steel elbow and is mounted to each of said lower guide arms by interference fit and flat key location.
7. The air suspension system of claim 5, wherein said lower pilot arm has a torsion bar mounting hole, wherein said torsion bar mounting hole is located between said air spring mounting hole and said lower pilot arm bracket mounting hole.
8. An air suspension system according to any one of claims 1 to 7 wherein said upper bracket extends outwardly from and is located at an intermediate position of said axle.
9. An air suspension system according to any one of claims 1 to 7 wherein said lower seats are two in number and extend downwardly from each end of said axle.
10. The air suspension system of any one of claims 1 to 7, further comprising two V-shaped thrust bar supports, wherein two of said V-shaped thrust bar supports are attached to two of said side rails of said vehicle frame, respectively, and located inside said vehicle frame, and said V-shaped thrust bar is attached to said V-shaped thrust bar support attachment support, wherein said V-shaped thrust bar supports and said lower pilot arm supports are located inside and outside the same portion of said vehicle frame, respectively.
11. An air suspension system according to any one of claims 1 to 7 wherein each said lower pilot arm is hinged to said lower pilot arm mount and the axle respectively.
12. An air suspension according to claim 11 wherein said V-shaped thrust rod is hinged to the frame and the axle respectively.
13. The air suspension system of claim 12 wherein the projection of said lower guide arm and said V-shaped thrust rod onto the longitudinal plane of the vehicle can form a parallelogram.
14. The air suspension system of claim 11 wherein said number of shock absorbers is two, each of said lower pilot arms supporting one of said shock absorbers, said number of air springs is two, each of said lower pilot arms supporting one of said air springs.
15. A vehicle, characterized by comprising:
a drive system; and
a ride system, wherein said ride system is drivably coupled to said drive system, wherein said ride system comprises two axles, a frame, an air suspension system according to any one of claims 1 to 14, and four wheels, wherein each two of said wheels are mounted to one of said axles, wherein said air suspension system is coupled to said axle to said frame.
16. An air suspension system for a vehicle, wherein a frame of the vehicle includes two longitudinal beams, comprising:
at least one air spring;
at least one vibration damper; and
a guiding mechanism, wherein said guiding mechanism comprises a V-shaped thrust bar, at least two V-shaped thrust bar supports, a lower guiding arm assembly and two lower guiding arm supports, wherein said lower guiding arm supports have a high end and a low end, wherein said high end of said lower guiding arm support is higher than said low end of said lower guiding arm support, wherein said high end of said lower guiding arm support is connected to the connecting beam, said lower guiding arm assemblies are hinged to said low ends of two said lower guiding arm supports, respectively, wherein said V-shaped thrust bar has two lateral ends and a middle end, said lateral ends of said V-shaped thrust bar are hinged to said V-shaped thrust bar supports, said V-shaped thrust bar supports are connected to two said longitudinal beams of the vehicle frame, wherein a vehicle axle of the vehicle is provided with an upper support and at least one lower support, respectively, wherein said middle end of said V-shaped thrust bar is hinged to said upper support, said lower bracket is hingedly connected to said lower guide arm assembly, wherein said air spring has a high end and a low end, wherein said high end of said air spring is attached to said frame and said low end of said air spring is attached to said lower guide arm assembly, wherein said shock absorber has a high end and a low end, wherein said high end of said shock absorber is attached to said frame and wherein said low end of said shock absorber is attached to said lower guide arm assembly.
17. The air suspension system of claim 16, wherein said lower pilot arm assembly includes two lower pilot arms, wherein two of said lower pilot arms are respectively hinged to said axle through said lower mounts, and wherein two of said lower pilot arms are respectively hinged to said lower pilot arm mounts on the same side.
18. The air suspension system of claim 17 wherein said lower guide arm assembly further comprises two torsion bars, wherein two of said torsion bars are connected transversely to each of said lower guide arms.
19. The air suspension system according to claim 17 or 18, wherein said air spring and said lower pilot arm support are respectively located at both ends of said lower pilot arm on the same side.
20. An air suspension system according to any one of claims 16 to 17 wherein said lower pilot arm assemblies are two in number, said lower pilot arm assemblies are respectively located forwardly and rearwardly of said lower pilot arm support, said air springs are four in number, and one said air spring is supported for each said lower pilot arm.
21. A vehicle, characterized by comprising:
a drive system; and
a ride system wherein said ride system is drivably coupled to said drive system, wherein said ride system comprises two axles, a frame, an air suspension system according to any one of claims 16 to 20, and four wheels, wherein each two of said wheels are mounted to one of said axles, wherein said air suspension system is coupled to said axle to said frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910843281.XA CN112455174A (en) | 2019-09-06 | 2019-09-06 | Air suspension system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910843281.XA CN112455174A (en) | 2019-09-06 | 2019-09-06 | Air suspension system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112455174A true CN112455174A (en) | 2021-03-09 |
Family
ID=74807163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910843281.XA Pending CN112455174A (en) | 2019-09-06 | 2019-09-06 | Air suspension system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112455174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459750A (en) * | 2021-08-06 | 2021-10-01 | 江苏汤臣汽车零部件有限公司 | Four-airbag air suspension system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202806274U (en) * | 2012-03-29 | 2013-03-20 | 北汽福田汽车股份有限公司 | Guide arm-type combined air spring suspension and vehicle |
| CN210760131U (en) * | 2019-09-06 | 2020-06-16 | 丰疆智能科技股份有限公司 | Air suspension system and vehicle |
-
2019
- 2019-09-06 CN CN201910843281.XA patent/CN112455174A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202806274U (en) * | 2012-03-29 | 2013-03-20 | 北汽福田汽车股份有限公司 | Guide arm-type combined air spring suspension and vehicle |
| CN210760131U (en) * | 2019-09-06 | 2020-06-16 | 丰疆智能科技股份有限公司 | Air suspension system and vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459750A (en) * | 2021-08-06 | 2021-10-01 | 江苏汤臣汽车零部件有限公司 | Four-airbag air suspension system |
| CN113459750B (en) * | 2021-08-06 | 2024-01-23 | 江苏汤臣汽车零部件有限公司 | Four-airbag air suspension system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0605398A1 (en) | Vehicle suspension system | |
| US6375203B1 (en) | Front air spring suspension with leading arm trailing and V-link | |
| EP2255981A1 (en) | Torsion bar vehicle suspension device | |
| JP2924306B2 (en) | Wheel independent suspension | |
| US6086077A (en) | Steer axle suspension with air springs | |
| MX2011009203A (en) | Vehicle suspension. | |
| US6390485B1 (en) | Vehicle suspension | |
| US20090085318A1 (en) | Vehicle leaf spring suspension with radius arms | |
| US20050206111A1 (en) | Tunable suspension system for enhanced acceleration characteristics of wheeled vehicles | |
| WO2017021181A1 (en) | Pneumatic axle suspension for a rear axle of a vehicle | |
| CN110884312A (en) | Electric automobile and multi-connecting-rod rear suspension thereof | |
| CN210760131U (en) | Air suspension system and vehicle | |
| US5716042A (en) | Springing means for suspension systems | |
| GB2300162A (en) | Rear suspension system for vehicle | |
| AU2016296919B2 (en) | Pneumatic axle suspension for a rear axle of a vehicle | |
| US4087115A (en) | Motor vehicle rear wheel suspension | |
| CN112455174A (en) | Air suspension system and vehicle | |
| EP0318438A1 (en) | Suspension device for tilting cabs of commercial vehicles | |
| US10894455B2 (en) | Trailing-arm suspension with leaf springs | |
| JPS58112814A (en) | Car suspension-system | |
| EP1707408B1 (en) | Vehicle suspension systems | |
| CN214492430U (en) | Vehicle rear suspension system and vehicle | |
| JP2002144838A (en) | Air suspension device | |
| CN219256979U (en) | Rear suspension structure and automobile with same | |
| CN213892085U (en) | Multi-link type rear suspension and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |