CN210553999U - X-shaped arm for vehicle air suspension and air suspension assembly based on X-shaped arm - Google Patents

X-shaped arm for vehicle air suspension and air suspension assembly based on X-shaped arm Download PDF

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CN210553999U
CN210553999U CN201921234350.9U CN201921234350U CN210553999U CN 210553999 U CN210553999 U CN 210553999U CN 201921234350 U CN201921234350 U CN 201921234350U CN 210553999 U CN210553999 U CN 210553999U
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arm
axle
arms
shaped
bridge
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李强
桑强强
邓丽华
韩政臣
李培浩
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Jiangsu Tangchen Automobile Parts Co Ltd
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Jiangsu Tangchen Automobile Parts Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/121—Constructional features of arms the arm having an H or X-shape

Abstract

The utility model discloses a vehicle X type arm for air suspension still relates to an air suspension assembly who adopts this X type arm, its characterized in that: including the body, the integrated into one piece has on the body: the axle connecting arms extend outwards from the body and are symmetrically arranged, the beam connecting arms extend outwards from the body and are symmetrically arranged, and the two axle connecting arms and the two beam connecting arms are arranged back to back on a symmetrical axis to form an X shape or an H shape; the cross sections of the beam connecting arms and the axle connecting arms are gradually reduced in the direction extending outwards from the body. The utility model has the advantages that: the stress effect is good, and the structure is stable; after the axle connecting arm and the cross beam connecting arm are subjected to the optimization design of the molded lines and the cross sections, the structural strength and the stability can be greatly improved, and the weight reduction optimization can be performed on the premise.

Description

X-shaped arm for vehicle air suspension and air suspension assembly based on X-shaped arm
Technical Field
The utility model relates to a vehicle is X type arm for air suspension still relates to an air suspension assembly based on this X type arm.
Background
Under the background of energy conservation and environmental protection, the light weight of the automobile chassis and energy conservation and emission reduction are the development directions of main efforts of various manufacturers, and the thrust rod as an important part of a chassis system of a heavy truck also needs light weight.
Currently, the rear suspension system of mainstream heavy trucks mainly has an air suspension system and a balance suspension system, both of which are matched with a thrust rod, wherein the upper thrust rod generally adopts a V-shaped thrust rod or an I-shaped straight thrust rod.
An air suspension system is gradually one of the mainstream configurations of a chassis of a heavy truck due to light weight and good comfort, a V-shaped thrust rod is generally used as an upper thrust rod of the air suspension system, the V-shaped thrust rod transmits a longitudinal force and a lateral force of a driving force and a braking force between a vehicle frame and an axle, and an air spring has low rigidity and weak anti-rolling capability, so that a transverse stabilizer bar needs to be additionally arranged to improve the rolling restraining capability of a vehicle. The I-shaped straight thrust rod can only transmit longitudinal forces such as driving force, braking force and the like between the vehicle frame and the vehicle axle, cannot bear lateral force, has no anti-roll capability, and must be additionally provided with the transverse stabilizer rod, but the anti-roll capability of the transverse stabilizer rod is still poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a light in weight, reliable and stable in structure's X type arm for vehicle air suspension, still provide an air suspension assembly based on this X type arm.
In order to solve the technical problem, the utility model adopts the technical scheme that: the X-shaped arm for the air suspension of the vehicle has the innovation points that: including the body, the integrated into one piece has on the body:
the pair of axle connecting arms extend outwards from the body and are symmetrically arranged, and one ends of the axle connecting arms far away from the body are axle connecting ends;
the pair of beam connecting arms extend outwards from the body and are symmetrically arranged, and one ends of the beam connecting arms, far away from the body, are beam connecting ends;
the symmetrical axis of the axle connecting arms is superposed with the symmetrical axis of the beam connecting arms, and the two axle connecting arms and the two beam connecting arms are arranged back to back on the symmetrical axis to form an X shape or an H shape;
the axle connecting arm and the beam connecting arm simultaneously meet the following conditions:
the cross section of the beam connecting arm is gradually reduced in the direction extending outwards from the body; the cross section of the axle connecting arm is gradually reduced in the direction extending outwards from the body; kOutside bridge＜KIn the bridge，KOutside beam＜KIn the beam，KIn the bridge＞KIn the beam；KOutside beamIs the mean curvature of the profile line of the beam connecting arm, KOutside bridgeThe average curvature of the profile line of the axle connecting arm; kIn the beamMean curvature of inner profile line of connecting arm of cross beam, KIn the bridgeIs the mean curvature of the inner profile line of the axle linkage arm; lightening grooves are formed in the surfaces of the axle connecting arm and the cross beam connecting arm; hMaster and slave＜HBridge with a bridge body＜HBeamAnd H isBeam＝1.1～1.3HBridge with a bridge body，HMaster and slaveIs the width of the body in a direction perpendicular to the axis of symmetry, HBridge with a bridge bodyThe distance between the axle connections of the two axle connecting arms, HBeamThe distance between the beam connecting ends of the two beam connecting arms.
Preferably, in the extending direction from the body to the connecting end of the cross beam, the outer contour of the cross beam connecting arm is sequentially provided with at least a first contour and a second outer arc contour, and the curvature of the first contour is denoted as KBeam outer 1The curvature of the second outer arc-shaped profile is denoted as KOuter beam 2，KBeam outer 1＜KOuter beam 2；
In the extending direction from the body to the axle connecting end, the outer contour of the axle connecting arm is sequentially provided with at least a third contour and a fourth outer arc-shaped contour, and the curvature of the third contour is marked as KBridge outer 1And the curvature of the fourth outer arcuate profile is denoted KOutside bridge 2，KBridge outer 1＜KOutside bridge 2。
Preferably, the first and second liquid crystal materials are,
Figure BDA0002152457950000031
Figure BDA0002152457950000032
preferably, the inner contour lines of the two beam connecting arms and the inner contour lines of the two axle connecting arms are in smooth transition through inner arcs; the outer contour lines of the beam connecting arms and the outer contour lines of the axle connecting arms are in smooth transition through inner arcs.
The air suspension assembly of the X-shaped arm for the vehicle air suspension is provided, and the innovation points are as follows: comprises a frame, a pair of longitudinal beams which are symmetrically arranged, and a plurality of cross beams which are connected between the two longitudinal beams; the cross beam of the frame at least comprises an X-shaped arm beam positioned between two adjacent axles, and two side surfaces of the X-shaped arm beam are provided with a pair of X-shaped arm connecting seats; the axles are distributed along the extending direction of the longitudinal beams, and extend along the extending direction of the cross beam; the number of the X-shaped arms corresponds to the number of the axles, each X-shaped arm is provided with a pair of axle connecting ends connected with the axles and a pair of beam connecting ends connected with the X-shaped arm beams, the upper surface of the middle part of each axle is provided with a pair of X-shaped arm mounting seats, the axle connecting ends of the X-shaped arms are hinged with the X-shaped arm mounting seats, and the beam connecting ends of the X-shaped arms are hinged with the X-shaped arm connecting seats of the X-shaped arm beams; the support arms are arranged below two ends of each axle and are fixedly connected with the axles through connecting components, and the long axis direction of each support arm is parallel to the extending direction of the longitudinal beam and is positioned right below the longitudinal beam; the upper surface of the middle part of the bracket arm is provided with an axle supporting part attached to the contact part of the bottom of the axle, an axle bolt connecting hole penetrating through the bracket arm is formed in an axle supporting panel, air bag supporting parts attached to the contact parts of the bottoms of the air bags are arranged at the two ends of the bracket arm, a thrust rod connecting part connected with a thrust rod is arranged at the bottom of the bracket arm, and a lateral shock absorber connecting hole is formed between the air bag supporting part of the bracket arm and the axle supporting part; a plurality of airbags are arranged between the upper end and the lower end of each bracket arm and the longitudinal beam and between the upper end and the lower end of each bracket arm and the airbag supporting part; the Y-shaped thrust rod supports are respectively arranged between two adjacent support arms below the same longitudinal beam, the upper ends of the Y-shaped thrust rod supports are fixedly connected with the longitudinal beam on the corresponding side of the support arms, and the support arm thrust rod connecting parts of the two adjacent support arms are respectively connected with the same Y-shaped thrust rod support through lower thrust rods; the number of the shock absorbers corresponds to the number of the support arms, the lower ends of the shock absorbers are connected with the shock absorber connecting holes of the support arms, and the upper ends of the shock absorbers are hinged to the longitudinal beams on the corresponding sides.
Preferably, at least one of the cross beams is a tubular air suspension cross beam having an air storage chamber for containing compressed air.
Preferably, still include the bump stop assembly, the bump stop assembly includes bump stop support to and install the bump stop on the bump stop support, the bump stop is towards axle upper surface.
The utility model has the advantages that:
the utility model discloses well axle linking arm and two crossbeam linking arms set up the shape that forms a similar X or H dorsad on the symmetry axis, and the axle end of this distance rod adopts two point connections, can transmit the drive power between frame and the axle, the longitudinal force of brake force and the yawing force of turning, possesses bigger anti ability of heeling, has improved the turning stability of vehicle, can cancel stabilizer bar and relevant spare part simultaneously, reduces spare part quantity, reduces whole car weight. After the axle connecting arm and the cross beam connecting arm are subjected to the optimization design of the molded lines and the cross sections, the structural strength and the stability can be greatly improved, and the weight reduction optimization can be performed on the premise. The suspension assembly with the structure can change the connection point at the upper end of the axle into two connection points, and the two connection points are designed to be connected with the fork-shaped arm in a parallel or certain included angle manner, so that the connection stability of the axle is ensured, a series of parts such as a transverse stabilizer bar and a vertical connecting rod with stabilizing effect can be removed, configuration parts are reduced, and the suspension assembly is convenient to mount.
Drawings
Fig. 1 is the structure diagram of the X-shaped arm for the vehicle air suspension of the present invention.
Fig. 2 is a plan view of the X-shaped arm for the vehicle air suspension of the present invention.
Fig. 3 is a schematic view of the profile distribution of the X-shaped arm for the vehicle air suspension according to the present invention.
Fig. 4 is a sectional view of the profile mean curvature of the X-shaped arm for the vehicle air suspension according to the present invention.
Fig. 5 is the structural schematic diagram of the air suspension assembly based on the X-shaped arm of the present invention.
Fig. 6 is a schematic view of the front stress condition of the X-arm for the vehicle air suspension according to the embodiment of the present invention.
Fig. 7 is a schematic view of a force condition of the back surface of the X-shaped arm for the vehicle air suspension according to the embodiment of the present invention.
Fig. 8 is a schematic diagram of the front force condition of the V-push in the conventional V-push and stabilizer bar scheme.
FIG. 9 is a schematic diagram of a conventional unoptimized H or X arm front force condition.
FIG. 10 is a schematic view of the backside force of a conventional non-optimized H or X arm.
Fig. 11 is a schematic diagram of the front force condition of a traditional C-shaped section mouth-shaped arm.
FIG. 12 is a schematic view of a conventional C-section mouthpiece arm under a force applied to the back surface.
Fig. 13 is a schematic diagram of the front stress situation of the conventional H-shaped hollow arm.
Fig. 14 is a schematic diagram of the force applied to the back of the conventional H-shaped hollow arm.
Fig. 15 is a schematic diagram of the front stress condition of the traditional mouth-shaped hollow arm.
Fig. 16 is a schematic diagram of the force applied to the back of the conventional mouth-shaped hollow arm.
Detailed Description
As shown in fig. 1-4, the utility model discloses a vehicle is X type arm 1 for air suspension, including body 11, the integrated into one piece has on body 11:
a pair of axle connecting arms 12 extending outwards from the body 11 and symmetrically arranged, wherein one end of each axle connecting arm 12 far away from the body 11 is an axle connecting end; the axle connecting end is provided with a mounting hole for connecting an axle;
a pair of beam connecting arms 13 which extend outwards from the body 11 and are symmetrically arranged, wherein one end of each beam connecting arm 13, which is far away from the body 11, is a beam connecting end; the beam connecting end is provided with a mounting hole for connecting with the beam;
the symmetry axis of the axle connecting arms 12 is superposed with the symmetry axis of the beam connecting arms 13, and the two axle connecting arms 12 and the two beam connecting arms 13 are arranged in a back direction on the symmetry axis to form an X shape or an H shape;
the utility model provides an axle linking arm 12 satisfies following condition with crossbeam linking arm 13 simultaneously:
(1) the cross-beam connecting arm 13 has a cross section gradually decreasing in a direction extending outward from the body; the cross section of the axle connecting arm is gradually reduced in the direction extending outwards from the body;
(2) as shown in FIGS. 2 and 3, KOutside bridge＜KIn the bridge，KOutside beam＜KIn the beam，KIn the bridge＞KIn the beam；
KOutside beamIs an outer contour L of a beam connecting armOutside beamAverage curvature of, KOutside bridgeIs the outer contour L of the axle connecting armOutside bridgeAverage curvature of (d);
Kin the beamIs an inner profile L of a beam connecting armIn the beamAverage curvature of, KIn the bridgeIs an inner profile line L of an axle connecting armIn the bridgeAverage curvature of (d);
(3) at least one lightening groove 14 is formed on the surfaces of the axle connecting arm 12 and the beam connecting arm 13;
(4)Hmaster and slave＜HBridge with a bridge body＜HBeamAnd H isBeam＝1.1～1.3HBridge with a bridge body，
HMaster and slaveIs the width of the body in the direction perpendicular to the axis of symmetry,
Hbridge with a bridge bodyThe distance between the axle connecting ends of the two axle connecting arms,
HbeamThe distance between the beam connecting ends of the two beam connecting arms.
As a more specific embodiment of the present invention, as shown in fig. 3:
the outer profile L of the beam connecting arm 13 in the direction extending from the body to the beam connecting endOutside beamHaving at least a first profile and a second outer arcuate profile in sequence, the curvature of the first profile being denoted KBeam outer 1The curvature of the second outer arc-shaped profile is denoted as KOuter beam 2，KBeam outer 1＜KOuter beam 2；
The outer contour L of the axle connecting arm 12 in the direction extending from the body to the axle connecting endOutside bridgeHaving at least a third profile and a fourth, outer arcuate profile in that order, the curvature of the third profile being denoted KBridge outer 1And the curvature of the fourth outer arcuate profile is denoted KOutside bridge 2，KBridge outer 1＜KOutside bridge 2。
This embodiment is preferable
Figure BDA0002152457950000071
Figure BDA0002152457950000072
So as to provide better stress effect when being stressed.
In order to improve the stress effect, the inner contour line L of the connecting arm of the two cross beamsIn the beamInner contour L of connecting arms of two axlesIn the bridgeThe two are smoothly transited through an inner arc line; outer contour L of beam connecting armOutside beamOuter contour L of the connecting arm with the axleOutside bridgeThe two parts are smoothly transited through inner arcs.
The utility model discloses an air suspension assembly of X type arm for vehicle air suspension, as shown in FIG. 5: comprises that
The frame 2 is provided with a pair of symmetrically arranged longitudinal beams 21 and a plurality of cross beams 22 connected between the two longitudinal beams 21; the cross beam 22 of the frame 2 at least comprises an X-arm beam positioned between two adjacent axles, and two side surfaces of the X-arm beam are provided with a pair of X-shaped arm connecting seats 23;
two or more axles (not shown) distributed along the extension direction of the longitudinal beams 21 and extending along the extension direction of the transverse beam 22;
the number of the X-shaped arms 1 corresponds to the number of the axles, each X-shaped arm 1 is provided with a pair of axle connecting ends connected with the axles and a pair of beam connecting ends connected with the X-shaped arm beams, the upper surface of the middle part of each axle is provided with a pair of X-shaped arm mounting seats, the axle connecting ends of the X-shaped arms are hinged with the X-shaped arm mounting seats, and the beam connecting ends of the X-shaped arms are hinged with the X-shaped arm connecting seats of the X-shaped arm beams;
the bracket arms 4 are arranged below two ends of each axle and are fixedly connected with the axles through connecting assemblies, and the long axis direction of the bracket arms 4 is parallel to the extending direction of the longitudinal beam and is positioned right below the longitudinal beam 21; the upper surface of the middle part of the bracket arm 4 is provided with an axle supporting part attached to the contact part of the bottom of the axle, an axle bolt connecting hole penetrating through the bracket arm is formed in an axle supporting panel, air bag supporting parts attached to the contact parts of the bottoms of the air bags are arranged at the two ends of the bracket arm, a thrust rod connecting part connected with a thrust rod is arranged at the bottom of the bracket arm, and a lateral shock absorber connecting hole is formed between the air bag supporting part of the bracket arm and the axle supporting part;
a plurality of airbags 5 are arranged between the upper end and the lower end of each bracket arm and the longitudinal beam and the airbag supporting part;
the Y-shaped thrust rod supports 6 are respectively arranged between two adjacent supporting arms 4 below the same longitudinal beam 21, the upper ends of the Y-shaped thrust rod supports 6 are fixedly connected with the longitudinal beam 21 on the side corresponding to the supporting arms 4, and the supporting arm thrust rod connecting parts of the two adjacent supporting arms are respectively connected with the same Y-shaped thrust rod bracket 6 through the lower thrust rods 9;
the number of the shock absorbers 7 corresponds to that of the support arms 4, the lower ends of the shock absorbers 7 are connected with shock absorber connecting holes of the support arms 4, and the upper ends of the shock absorbers are hinged to longitudinal beams on the corresponding sides.
Buffer block assembly 8, buffer block assembly include the buffer block support to and install the buffer block on the buffer block support, the buffer block is towards the axle upper surface.
In addition, the cross member of the present invention may optionally include one or more tubular air suspension cross members having an air storage chamber for receiving compressed air.
The utility model provides an air suspension is with X type arm atress analysis as follows:
firstly, a whole vehicle model for calculating an upper thrust rod is established, a drawing surface of a sheet metal part is divided by adopting quadrilateral S4 and triangular S3 shell grids, other castings or forgings are divided by adopting tetrahedral high-order body grids, the average size of the shell grids is 8mm, the average size of the body grids is 5mm, and key positions are refined. The model calculation amount is composed of 2292570 nodes and 1602002 units.
Because the upper thrust rod is worst when the lateral force is borne under the turning working condition, the comparison and calculation are mainly carried out aiming at the lateral working condition, and the strength of the upper thrust rod and the capability of resisting the lateral deviation of the whole vehicle are calculated when the whole vehicle is loaded with 0.4G of lateral load under the full load.
The utility model discloses the X type arm after optimizing pushes away + stabilizer bar, H or X shape arm, C type cross-section mouth shape arm, H shape hollow arm, the stress of the hollow arm of mouth shape, side dip test as follows with traditional V and is shown in 6 ~ 16:
Figure BDA0002152457950000091
from the above results, it can be seen that the roll angle of the scheme 1 is the smallest of the 6 schemes, and meets the requirement that the standard is less than 6-7 degrees, and the thrust lever of the X-shaped arm can improve the turning stability of the vehicle; the maximum tensile stress of the X-shaped arm is 851MPa, which is smaller than the tensile strength 900MPa of QT900-9 used by the X-shaped arm, and the X-shaped arm structure in the scheme 1 meets the use requirement.
The strength and the rigidity of the scheme 2 meet the requirements, but compared with the scheme 1, the structure is complex, the number of parts is large, and the weight is heavy. The maximum tensile stress of the schemes 3, 4, 5 and 6 are 1140MPa, 1148MPa, 926MPa and 987MPa respectively, the strength requirement can be met by using the QT1200-4 material, the side inclination angles at 0.4g of lateral acceleration are 6.8 degrees, 6.9 degrees, 6.3 degrees and 6.2 degrees respectively, and the requirement that the standard is less than 6-7 degrees is met.
In conclusion, the 6 schemes can meet the use requirements, but the schemes 3, 4, 5 and 6 can meet the requirements only by using a higher-grade material QT1200-4, and compared with other schemes, the X-shaped arm thrust rod has the characteristics of high strength, light weight, good rigidity and low cost, and has obvious advantages in product competition.

Claims (7)

1. An X-arm for a vehicle air suspension characterized by: including the body, the integrated into one piece has on the body:
the pair of axle connecting arms extend outwards from the body and are symmetrically arranged, and one ends of the axle connecting arms far away from the body are axle connecting ends;
the pair of beam connecting arms extend outwards from the body and are symmetrically arranged, and one ends of the beam connecting arms, far away from the body, are beam connecting ends;
the symmetrical axis of the axle connecting arms is superposed with the symmetrical axis of the beam connecting arms, and the two axle connecting arms and the two beam connecting arms are arranged back to back on the symmetrical axis to form an X shape or an H shape;
the axle connecting arm and the beam connecting arm simultaneously meet the following conditions:
(1) the cross section of the beam connecting arm is gradually reduced in the direction extending outwards from the body; the cross section of the axle connecting arm is gradually reduced in the direction extending outwards from the body;
(2)Koutside bridge＜KIn the bridge，KOutside beam＜KIn the beam，KIn the bridge＞KIn the beam；
KOutside beamIs the mean curvature of the profile line of the beam connecting arm, KOutside bridgeThe average curvature of the profile line of the axle connecting arm;
Kin the beamMean curvature of inner profile line of connecting arm of cross beam, KIn the bridgeIs the mean curvature of the inner profile line of the axle linkage arm;
(3) lightening grooves are formed in the surfaces of the axle connecting arm and the cross beam connecting arm;
(4)Hmaster and slave＜HBridge with a bridge body＜HBeamAnd H isBeam＝1.1～1.3HBridge with a bridge body，
HMaster and slaveIs the width of the body in the direction perpendicular to the axis of symmetry,
Hbridge with a bridge bodyThe distance between the axle connecting ends of the two axle connecting arms,
HbeamThe distance between the beam connecting ends of the two beam connecting arms.
2. The X-arm for a vehicle air suspension according to claim 1, characterized in that:
in the extending direction from the body to the connecting end of the cross beam, the outer contour of the cross beam connecting arm is sequentially provided with at least a first contour and a second outer arc contour, and the curvature of the first contour is marked as KBeam outer 1The curvature of the second outer arc-shaped profile is denoted as KOuter beam 2，KBeam outer 1＜KOuter beam 2；
In the extending direction from the body to the axle connecting end, the outer contour of the axle connecting arm is sequentially provided with at least a third contour and a fourth outer arc-shaped contour, and the curvature of the third contour is marked as KBridge outer 1And the curvature of the fourth outer arcuate profile is denoted KOutside bridge 2，KBridge outer 1＜KOutside bridge 2。
3. The X-arm for a vehicle air suspension according to claim 2, characterized in that:
Figure FDA0002152457940000021
Figure FDA0002152457940000022
Figure FDA0002152457940000023
Figure FDA0002152457940000024
Figure FDA0002152457940000025
Figure FDA0002152457940000026
4. the X-arm for a vehicle air suspension according to claim 2 or 3, characterized in that:
the inner contour lines of the two cross beam connecting arms and the inner contour lines of the two axle connecting arms are in smooth transition through inner arc lines; the outer contour lines of the beam connecting arms and the outer contour lines of the axle connecting arms are in smooth transition through inner arcs.
5. An air suspension assembly based on the X-shaped arm for the vehicle air suspension of any one of claims 1 to 4, characterized in that: comprises that
The frame is provided with a pair of longitudinal beams which are symmetrically arranged and a plurality of cross beams connected between the two longitudinal beams; the cross beam of the frame at least comprises an X-shaped arm beam positioned between two adjacent axles, and two side surfaces of the X-shaped arm beam are provided with a pair of X-shaped arm connecting seats;
the axles are distributed along the extending direction of the longitudinal beams, and extend along the extending direction of the cross beam;
the number of the X-shaped arms corresponds to the number of the axles, each X-shaped arm is provided with a pair of axle connecting ends connected with the axles and a pair of beam connecting ends connected with the X-shaped arm beams, the upper surface of the middle part of each axle is provided with a pair of X-shaped arm mounting seats, the axle connecting ends of the X-shaped arms are hinged with the X-shaped arm mounting seats, and the beam connecting ends of the X-shaped arms are hinged with the X-shaped arm connecting seats of the X-shaped arm beams;
the support arms are arranged below two ends of each axle and are fixedly connected with the axles through connecting components, and the long axis direction of each support arm is parallel to the extending direction of the longitudinal beam and is positioned right below the longitudinal beam; the upper surface of the middle part of the bracket arm is provided with an axle supporting part attached to the contact part of the bottom of the axle, an axle bolt connecting hole penetrating through the bracket arm is formed in an axle supporting panel, air bag supporting parts attached to the contact parts of the bottoms of the air bags are arranged at the two ends of the bracket arm, a thrust rod connecting part connected with a thrust rod is arranged at the bottom of the bracket arm, and a lateral shock absorber connecting hole is formed between the air bag supporting part of the bracket arm and the axle supporting part;
a plurality of airbags are arranged between the upper end and the lower end of each bracket arm and the longitudinal beam and between the upper end and the lower end of each bracket arm and the airbag supporting part;
the Y-shaped thrust rod supports are respectively arranged between two adjacent support arms below the same longitudinal beam, the upper ends of the Y-shaped thrust rod supports are fixedly connected with the longitudinal beam on the corresponding side of the support arms, and the support arm thrust rod connecting parts of the two adjacent support arms are respectively connected with the same Y-shaped thrust rod support through lower thrust rods;
the number of the shock absorbers corresponds to the number of the support arms, the lower ends of the shock absorbers are connected with the shock absorber connecting holes of the support arms, and the upper ends of the shock absorbers are hinged to the longitudinal beams on the corresponding sides.
6. The air suspension assembly of claim 5, wherein: at least one of the cross beams is a tubular air suspension cross beam having an air storage cavity for containing compressed air.
7. The air suspension assembly of claim 5, wherein: still include the buffer block assembly, the buffer block assembly includes the buffer block support to and install the buffer block on the buffer block support, the buffer block is towards the axle upper surface.
CN201921234350.9U 2019-08-01 2019-08-01 X-shaped arm for vehicle air suspension and air suspension assembly based on X-shaped arm Active CN210553999U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110341409A (en) * 2019-08-01 2019-10-18 江苏汤臣汽车零部件有限公司 A kind of vehicle air suspension X-type arm and the air suspension assembly based on the X-type arm
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
WO2022042944A1 (en) * 2020-08-31 2022-03-03 Zf Friedrichshafen Ag Four-point link for a chassis of a motor vehicle
CN114194300A (en) * 2021-11-04 2022-03-18 北京航空航天大学宁波创新研究院 Lightweight aluminum alloy fender bracket assembly structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110341409A (en) * 2019-08-01 2019-10-18 江苏汤臣汽车零部件有限公司 A kind of vehicle air suspension X-type arm and the air suspension assembly based on the X-type arm
WO2022042944A1 (en) * 2020-08-31 2022-03-03 Zf Friedrichshafen Ag Four-point link for a chassis of a motor vehicle
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
CN114194300A (en) * 2021-11-04 2022-03-18 北京航空航天大学宁波创新研究院 Lightweight aluminum alloy fender bracket assembly structure
CN114194300B (en) * 2021-11-04 2022-09-16 北京航空航天大学宁波创新研究院 Lightweight aluminum alloy fender bracket assembly structure

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