CN113895197A - Air suspension trailing arm, air suspension system and vehicle - Google Patents
Air suspension trailing arm, air suspension system and vehicle Download PDFInfo
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- CN113895197A CN113895197A CN202111312124.XA CN202111312124A CN113895197A CN 113895197 A CN113895197 A CN 113895197A CN 202111312124 A CN202111312124 A CN 202111312124A CN 113895197 A CN113895197 A CN 113895197A
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- air suspension
- connecting beam
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- mounting portion
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- 239000000725 suspension Substances 0.000 title claims abstract description 76
- 238000009434 installation Methods 0.000 claims abstract description 74
- 230000035939 shock Effects 0.000 claims description 22
- 239000006096 absorbing agent Substances 0.000 claims description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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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
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
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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
- B60G11/26—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
- 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
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- 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
- B60G2202/1524—Pneumatic spring with two air springs per wheel, arranged before and after the wheel axis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to an air suspension bracket arm, an air suspension system and a vehicle. Including transaxle installation department, first installation department, second installation department and first tie-beam and second tie-beam. The drive axle mounting part is provided with a first mounting surface for mounting a drive axle; the first installation portion and the second installation portion are arranged at two opposite ends of the drive axle installation portion, the first installation portion is provided with a second installation surface facing the same side with the first installation surface, the second installation portion is provided with a third installation surface facing the same side with the first installation surface, and the second installation surface and the third installation surface are used for assembling an air spring. First tie-beam is connected between transaxle installation department and first installation department, and the second tie-beam is connected between transaxle installation department and second installation department. Wherein, the transaxle installation department has a plurality of hollows out the groove, has realized the lightweight of transaxle installation department, and first tie-beam and second tie-beam all adopt the I-beam structure simultaneously, so realized the lightweight purpose of air suspension trailing arm.
Description
Technical Field
The invention relates to the technical field of commercial vehicle air suspensions, in particular to an air suspension trailing arm, an air suspension system and a vehicle.
Background
Compared with a plate spring suspension with a steel plate spring as an elastic element, the automobile air suspension system has the advantages of light weight, good comfort, small shock impact on goods, adjustable overall height and the like, and is increasingly applied to the transportation industry in recent years.
The bracket arm is used as a core bearing part of the air suspension, is also a part with the largest weight, the highest bearing capacity, the most complex structure and the most functions, and generally integrates the connecting functions of parts such as an air spring, a shock absorber, a thrust rod, a drive axle, a transverse stabilizer bar and the like, namely all the mechanisms can be connected together through one air suspension bracket arm.
Due to the numerous connection functions and high bearing requirements, and the factors such as assembly space and the like are also considered in the structural design, the air suspension system is high in design difficulty and heavy in general design, and the lightweight degree of the air suspension system is seriously influenced.
Disclosure of Invention
In view of the above, it is necessary to provide an air suspension bracket having a more rational structure and a lighter weight in order to solve the problem of a low degree of weight reduction of an air suspension system.
An air suspension trailing arm comprising:
the drive axle mounting part is provided with a first mounting surface and a plurality of hollowed grooves;
the first mounting part is provided with a second mounting surface facing to the same side as the first mounting surface, and the second mounting part is provided with a third mounting surface facing to the same side as the first mounting surface; and
the first connecting beam is connected between the drive axle mounting part and the first mounting part, and the second connecting beam is connected between the drive axle mounting part and the second mounting part;
and the first connecting beam and the second connecting beam are both I-shaped beams.
In one embodiment, the air suspension bracket is made of an aluminum alloy material.
In one embodiment, the first connecting beam and the second connecting beam are concave towards a direction away from the plane of the first mounting surface.
In one embodiment, the direction of the drive axle mounting part pointing to the first mounting part is defined as a first direction, and the direction of the drive axle mounting part pointing to the second mounting part is defined as a second direction;
the cross section area of the first connecting beam in the first direction is gradually reduced, and the plane of the cross section of the first connecting beam is intersected with the first direction;
the cross-sectional area of the second connecting beam in the second direction is gradually reduced, and the plane of the cross section of the second connecting beam intersects with the second direction.
In one embodiment, a direction intersecting both the first direction and the second direction is defined as a third direction, and the third direction intersects a direction in which an i-shaped upper beam of the first connecting beam points to an i-shaped lower beam of the first connecting beam;
the width of the I-shaped upper beam of the first connecting beam in the third direction is greater than that of the I-shaped lower beam of the first connecting beam in the third direction;
the width of the I-shaped upper beam of the second connecting beam in the third direction is greater than that of the I-shaped lower beam of the second connecting beam in the third direction;
and the I-shaped upper beam of the first connecting beam and the I-shaped upper beam of the second connecting beam are both positioned on one side close to the first mounting surface.
In one embodiment, the air suspension bracket further comprises a plurality of reinforcing ribs, and the reinforcing ribs are arranged between the upper i-shaped beam and the lower i-shaped beam of the first connecting beam and between the upper i-shaped beam and the lower i-shaped beam of the second connecting beam.
In one embodiment, the air suspension bracket further comprises a damper mounting portion, and the damper mounting portion is disposed on the i-shaped upper beam of the first connecting beam or the second connecting beam.
In one embodiment, a direction intersecting both the first direction and the second direction is defined as a third direction, and the third direction intersects a direction in which an i-shaped upper beam of the first connecting beam points to an i-shaped lower beam of the first connecting beam;
the shock absorber mounting part is arranged along the third direction in an extending mode and is provided with a shock absorber mounting hole which is formed along the third direction in an extending mode, and the shock absorber mounting hole is eccentrically arranged relative to the shock absorber mounting part.
In one embodiment, a ratio of a length of the second connecting beam extending between the axle mount and the second mount to a length of the first connecting beam extending between the axle mount and the first mount is in a range of 1.15-1.35.
In one embodiment, the air suspension bracket further comprises a lower thrust rod mounting part, the lower thrust mounting part is arranged on one side, away from the first mounting surface, of the drive axle mounting part, and a thrust rod mounting space is defined by the lower thrust mounting part and the drive axle mounting part.
According to another aspect of the present application, there is provided an air suspension system comprising two adapter seats, two air springs and an air suspension trailing arm provided in any of the above embodiments;
the second installation surface and the third installation surface are sequentially provided with the adapter and the air spring.
In one embodiment, the air suspension system further comprises a first fastener and a second fastener;
the first fastening piece is connected with the air spring and at least partially protrudes relative to the air spring, and the adapting seat, the first mounting part or the second mounting part and the second fastening piece are sequentially sleeved on the first fastening piece;
the second fastener is used for fixing the adapting seat and the first installation part or the second installation part on the first fastener.
According to another aspect of the present application, there is provided a vehicle comprising the air suspension system provided in any of the embodiments described above.
The air suspension bracket is applied to an air suspension system of a vehicle and used for keeping the stability of the vehicle. Including transaxle installation department, first installation department, second installation department and first tie-beam and second tie-beam. The drive axle mounting part is provided with a first mounting surface for mounting a drive axle; the first installation portion and the second installation portion are arranged at two opposite ends of the drive axle installation portion along a first direction and a second direction, the first installation portion is provided with a second installation surface facing the same side with the first installation surface, the second installation portion is provided with a third installation surface facing the same side with the first installation surface, and the second installation surface and the third installation surface are used for assembling an air spring. First tie-beam is connected between transaxle installation department and first installation department, and the second tie-beam is connected between transaxle installation department and second installation department. Wherein, the transaxle installation department has a plurality of hollows, has realized the lightweight of transaxle installation department, and first tie-beam and second tie-beam all adopt the I-beam structure simultaneously. So, the air suspension joist trailing arm that this application provided not only can connect structures such as transaxle and air spring, can also realize simple structure, integrate the purpose that the degree is high and the air suspension trailing arm is lightweight through the section structure of using the I-beam and the heavy setting that subtracts of transaxle installation department.
Drawings
FIG. 1 is a schematic plan view of an air suspension bracket according to the present invention;
FIG. 2 is a schematic view of a first perspective view of the air suspension trailing arm provided in FIG. 1;
FIG. 3 is a perspective view of the air suspension trailing arm provided in FIG. 1 from a second perspective;
fig. 4 is a schematic structural diagram of an air suspension system according to another embodiment of the present invention.
Reference numerals: 100. an air suspension trailing arm; 10. a transaxle mounting portion; 11. a first mounting surface; 12. hollowing out the groove; 13. a drive axle mounting hole; 131. a first machining platform; 14. a positioning pin hole; 20. a first mounting portion; 21. a second mounting surface; 22. a second mounting hole; 23. a second machining platform; 30. a second mounting portion; 31. a third mounting surface; 32. a third mounting hole; 33. a third machining platform; 40. a first connecting beam; 50. a second connecting beam; 60. reinforcing ribs; 70. a damper mounting portion; 71. a fourth mounting surface; 72. a fourth mounting hole; 80. a lower thrust rod mounting part; 81. mounting support legs; 811. a lower thrust rod mounting hole; 200. an adapter base; 300. an air spring; 410. a first fastener; 420. a second fastener; l1: first direction; l2: second direction; l3 third direction.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 to 3, an embodiment of the present application provides an air suspension bracket 100 for maintaining stability of a vehicle in an air suspension system of the vehicle; including a transaxle mounting portion 10, a first mounting portion 20, a second mounting portion 30, and first and second connection beams 40 and 50.
Specifically, the transaxle mounting portion 10 has a first mounting surface 11 for mounting a transaxle. The first mounting portion 20 and the second mounting portion 30 are disposed at opposite ends of the transaxle mounting portion 10 along a first direction and a second direction, the first mounting portion 20 has a second mounting surface 21 facing the same side as the first mounting surface 11, the second mounting portion 30 has a third mounting surface 31 facing the same side as the first mounting surface 11, and the second mounting surface 21 and the third mounting surface 31 are used for mounting one air spring 300. The first connecting beam 40 is connected between the drive axle mounting portion 10 and the first mounting portion 20, and the second connecting beam 50 is connected between the drive axle mounting portion 10 and the second mounting portion 30. Wherein, transaxle installation department 10 has a plurality of undercuts 12, has realized the lightweight of transaxle installation department 10, and first tie-beam 40 and second tie-beam 50 all adopt the I-beam structure simultaneously. So, the air suspension joist trailing arm that this application provided not only can connect structures such as transaxle and air spring 300, can also realize simple structure, integrate the purpose that the degree is high and the air suspension trailing arm 100 is lightweight through the section structure of using the I-beam and the heavy setting of subtracting of transaxle installation department 10.
In one embodiment, the main body of the air suspension bracket 100 is made of light aluminum alloy materials, the aluminum alloy extrusion casting process and the T6 heat treatment process are used for strengthening, the tensile strength of 320MPa and the yield strength of 260MPa of the main body of the air suspension bracket 100 are achieved, and the light weight effect that the weight of the air suspension bracket 100 is reduced by more than 50% is achieved by combining the light weight design means.
Specifically, the plurality of undercut grooves 12 are provided in the transaxle mounting portion 10, so that the transaxle mounting portion 10 is lightweight, and the direction, shape, and number of the undercut grooves 12 are not limited.
Further, the first connecting beam 40 and the second connecting beam 50 both adopt a cross-sectional structure of an i-beam, and the air suspension bracket 100 can be ensured to have the best bending resistance under the condition of the same material.
In one embodiment, the driving axle mounting portion 10 further has a plurality of driving axle mounting holes 13, and the driving axle mounting holes 13 are used for positioning and fixing the driving axle when fixing the driving axle on the first mounting surface 11, specifically, in some embodiments, 4U-bolt driving axle mounting holes 13 with rectangular connecting lines may be provided, so as to stably fix four corners of the driving axle.
Further, the drive axle mounting portion 10 is provided with two positioning pin holes 14, and each positioning pin hole 14 is located at the center of the connecting line of every two drive axle mounting holes 13, so that the two positioning pin holes 14 are arranged in the middle, and the variety of the drive axle bracket assembled with the drive axle mounting portion is reduced. Preferably, each dowel hole 14 is chamfered to facilitate dowel installation.
Specifically, the first mounting portion 20 has a second mounting hole 22, the second mounting portion 30 has a third mounting hole 32, and the second mounting hole 22 and the third mounting hole 32 are used for being mounted in alignment with holes on the air springs 300 which are respectively assembled, so that positioning, fixing and alignment mounting with the air springs 300 are facilitated.
In one embodiment, the number of the third mounting holes 32 provided in the second mounting portion 30 may be multiple, and the distance between each third mounting hole 32 and the center of the axle mounting portion 10 is different, so that the air spring 300 is mounted at different positions from the axle mounting portion 10, and is assembled to the vehicle to meet different performance requirements.
In one embodiment, the side of the second mounting hole 22 facing away from the second mounting surface 21 and the side of the third mounting hole 32 facing away from the third mounting surface 31 are both provided as planes, i.e., the second machined platform 23 and the third machined platform 33, so that the same side of the first mounting portion 20 and the second mounting portion 30 as the first mounting surface 11 is used for mounting the air spring 300, and the other side is fixed to other structures through the second machined platform 23 and the third machined platform 33.
Further, the drive axle mounting portion 10 is connected with the first mounting portion 20 and the second mounting portion 30 through the first connecting beam 40 and the second connecting beam 50, and the first connecting beam 40 and the second connecting beam 50 are concave towards the direction away from the plane where the first mounting surface 11 is located, so that the first connecting beam 40 and the second connecting beam 50 form an arc-shaped beam through the concave design, the second mounting surface 21 and the third mounting surface 31 can be guaranteed to be higher than the upper surface of the highest portion of the arc-shaped beam, enough movement space is reserved for the bag skin of the air spring 300, and contact abrasion between the bag skin and the air suspension bracket 100 is avoided. Meanwhile, the height of the arc-shaped beam can be reduced due to the concave design, so that the height of the whole vehicle is reduced, and possibility is provided for reducing wind resistance and increasing the volume of the vehicle body.
In one embodiment, as shown in fig. 1 and 2, the direction of the axle mounting portion 10 pointing to the first mounting portion 20 is defined as a first direction, the cross-sectional area of the first connecting beam 40 in the first direction is gradually reduced, and the plane of the cross-section of the first connecting beam 40 intersects with the first direction. Also, a direction in which the transaxle mounting portion 10 is directed to the second mounting portion 30 is defined as a second direction, a normal sectional area of the second connection beam 50 in the second direction is gradually reduced, and a plane in which a cross section of the second connection beam 50 is located intersects with the second direction. That is, the cross-sectional areas of the portions of the first and second connection beams 40 and 50 connected to the transaxle mounting part 10 are the largest, the cross-sectional area of the portion of the first connection beam 40 connected to the first mounting part 20 is the smallest, and the cross-sectional area of the portion of the second connection beam 50 connected to the second mounting part 30 is the smallest.
So, adopt the gradual change setting of variable cross section on self extending length direction through first tie-beam 40 and second tie-beam 50, guarantee that first tie-beam 40 and second tie-beam 50 stress distribution is even when bearing, and the position sectional area that is close to transaxle installation department 10 is the biggest, and the position sectional area of keeping away from transaxle installation department 10 is minimum, guarantees stress distribution such as first tie-beam 40 and second tie-beam 50 to realize material utilization's maximize.
In one embodiment, the width of the upper i-beam of the first connecting beam 40 in the third direction is greater than the width of the lower i-beam of the first connecting beam 40 in the third direction. The width of the i-shaped upper beam of the second connecting beam 50 in the third direction is greater than the width of the i-shaped lower beam of the second connecting beam 50 in the third direction, the third direction intersects with both the first direction and the second direction, and the third direction intersects with the direction in which the i-shaped upper beam of the first connecting beam 40 points to the i-shaped lower beam of the first connecting beam 40. And the i-shaped upper beam of the first connection beam 40 and the i-shaped upper beam of the second connection beam 50 are both located at a side close to the first mounting surface 11. So, all set up wide narrow structure down with first tie-beam 40 and second tie-beam 50 to guarantee that air suspension trailing arm 100 upside receives the tensile stress littleer when bearing air spring 300 load, thereby make the air suspension trailing arm 100 that this application provided satisfy the design strength requirement.
In one embodiment, the air suspension bracket 100 further comprises a plurality of reinforcing ribs 60, and the reinforcing ribs 60 are arranged between the upper i-shaped beam and the lower i-shaped beam of the first connecting beam 40 and between the upper i-shaped beam and the lower i-shaped beam of the second connecting beam 50 to resist torsional deformation of the first connecting beam 40 or the second connecting beam 50 when the air suspension bracket 100 bears an eccentric load. Preferably, the reinforcing ribs 60 are designed in a truss-like manner, and may be distributed in a V shape or a double V shape along the extending direction of the first connecting beam 40 and the second connecting beam 50, so as to ensure that the first connecting beam 40 or the second connecting beam 50 can bear stronger eccentric load.
In one embodiment, the air suspension bracket 100 further includes a damper mounting portion 70, and the damper mounting portion 70 is provided on the i-shaped upper beam of the first or second connection beam 40 or 50 for mounting a damper.
Specifically, the damper mounting portion 70 extends in the third direction, and one end of the damper mounting portion 70 in the third direction forms a fourth mounting surface 71, and after the damper and the damper mounting portion 70 are fixed, the damper and the fourth mounting surface 71 abut against each other.
Specifically, the damper mounting portion 70 has a damper mounting hole 72 opened to extend in the third direction and the damper mounting hole 72 is eccentrically disposed with respect to the damper mounting portion 70. When the shock absorber mounting portion 70 is located on the i-shaped upper beam, the opening position of the shock absorber mounting hole 72 is lower, namely, the shock absorber mounting hole is closer to the i-shaped lower beam, so that the influence of sudden wall thickness change of the i-shaped upper beam provided with the shock absorber mounting portion 70 due to the shock absorber mounting hole is weakened, the stress value at the position is effectively reduced, and the reliability risk of the air suspension bracket 100 in fracture is greatly reduced.
Meanwhile, the position where the shock absorber mounting part 70 is connected with the i-shaped upper beam is designed with an inclined rib, and the inclined rib structure can only bear the tension and compression load along the length direction of the rib when stressed, so that the material utilization maximization of the reinforcing rib 60 is realized.
In one embodiment, when the shock absorber is mounted on the first connection beam 40, the ratio of the length of the second connection beam 50 extending between the axle mounting portion 10 and the second mounting portion 30 to the length of the first connection beam 40 extending between the axle mounting portion 10 and the first mounting portion 30 is in the range of 1.15-1.35, that is, the length of the second connection beam 50 extending is greater than the length of the first connection beam 40, so as to form the first connection beam 40 and the second connection beam 50 with different arm lengths, so that the shock absorber is placed on one side of the first connection beam 40, the spring brake is placed on one side of the second connection beam 50, and since the volume of the spring brake is greater than that of the shock absorber, the length of the second connection beam 50 greater than that of the first connection beam 40 can ensure that the spring brake and the shock absorber both have reasonable arrangement space, and ensure compact structure.
It is to be understood that the damper may be provided on the second connection beam 50, and when the damper is provided on the second connection beam 50, the ratio of the length of the first connection beam 40 extending between the axle mounting portion 10 and the first mounting portion 30 to the length of the second connection beam 50 extending between the axle mounting portion 10 and the second mounting portion 30 is in the range of 1.15-1.35, i.e., the length of the first connection beam 40 is greater than the length of the second connection beam 50, thereby forming the first connection beam 40 and the second connection beam 50 having different arm lengths.
In one embodiment, the air suspension bracket 100 further includes a lower thrust rod mounting portion 80, which is disposed on a side of the driving axle mounting portion 10 away from the first mounting surface 11 and defines a thrust rod mounting space with the driving axle mounting portion 10, and the thrust rod mounting space is used for providing an accommodating space for mounting the lower thrust rod.
Specifically, lower push rod installation department 80 includes two installation landing legs 81, and two installation landing legs 81 intervals set up and all are connected with one side that transaxle installation department 10 deviates from first installation face 11 and define and form the U-shaped structure to hold lower push rod arrangement space, all be equipped with the lower push rod mounting hole 811 that runs through the setting on every installation landing leg 81, be used for counterpointing fixed mounting with lower push rod.
Specifically, the side of each U-bolt mounting hole, which faces away from the first mounting surface 11, is further provided with a recessed first machining platform 131, and the first machining platform 131 provides sufficient machining space and wind wrench assembling space for the lower thrust rod mounting hole 811.
According to another aspect of the present application, referring to fig. 4, an air suspension system is provided, which includes two adapter seats 200, two air springs 300 and the air suspension bracket 100 described in any of the above embodiments, and the second mounting surface 21 and the third mounting surface 31 are sequentially equipped with one adapter seat 200 and one air spring 300, so as to form the air suspension system of the present application, and integrate the air suspension beam bracket, the drive axle and the air springs 300.
In one embodiment, the air suspension system further comprises a first fastener 410 and a second fastener 420, wherein the first fastener 410 is connected with the air spring 300 and at least partially protrudes relative to the air spring 300, so that the air spring 300 can be connected with other structures.
Specifically, the air spring 300 has an installation internal thread hole, one end of the first fastening member 410 is screwed into the installation internal thread hole, the other end is sequentially sleeved with the adapter 200, the first installation part 20 or the second installation part 30, and the second fastening member 420 is used for fixing the adapter 200 and the first installation part 20 or the second installation part 30 on the first fastening member 410. Therefore, when the installation operation is carried out, only the first fastening piece 410 and the air spring 300 are fixed, then the adaptive seat 200 and the air suspension bracket 100 are sequentially placed, and finally the second fastening piece 420 is sleeved, so that the whole assembly process is finished at one step without adjustment and repetition, and the assembly efficiency is greatly improved.
Specifically, first fastener 410 is stud, and second fastener 420 is the nut, when the installation, screws up stud's one end and air spring 300, and adapter 200 and first installation department 20 (or second installation department 30) cover are established on stud, fasten the nut at stud's another end again, can realize the installation, need not many times counterpoint, and the assembly is simple and efficient.
According to another aspect of the present application, there is also provided a vehicle including the air suspension system provided in any one of the above embodiments, so that not only can the weight of the air suspension bracket 100 be reduced, but also the assembly of the air suspension system can be simplified, so that the vehicle provided by the present application has a high degree of weight reduction and is simple to assemble.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. An air suspension trailing arm, comprising:
the drive axle mounting part is provided with a first mounting surface and a plurality of hollowed grooves;
the first mounting part is provided with a second mounting surface facing to the same side as the first mounting surface, and the second mounting part is provided with a third mounting surface facing to the same side as the first mounting surface; and
the first connecting beam is connected between the drive axle mounting part and the first mounting part, and the second connecting beam is connected between the drive axle mounting part and the second mounting part;
and the first connecting beam and the second connecting beam are both I-shaped beams.
2. The air suspension bracket of claim 1 wherein said air suspension bracket is made of an aluminum alloy material.
3. The air suspension trailing arm of claim 1, wherein the first and second connecting beams are concave in a direction away from the plane of the first mounting surface.
4. The air suspension trailing arm of claim 3, wherein a direction defining the drive axle mounting portion to point toward the first mounting portion is a first direction and a direction defining the drive axle mounting portion to point toward the second mounting portion is a second direction;
the cross section area of the first connecting beam in the first direction is gradually reduced, and the plane of the cross section of the first connecting beam is intersected with the first direction;
the cross-sectional area of the second connecting beam in the second direction is gradually reduced, and the plane of the cross section of the second connecting beam intersects with the second direction.
5. The air suspension bracket according to claim 3, wherein a direction intersecting both the first direction and the second direction is defined as a third direction, and the third direction intersects a direction in which an i-shaped upper beam of the first connecting beam points toward an i-shaped lower beam of the first connecting beam;
the width of the I-shaped upper beam of the first connecting beam in the third direction is greater than that of the I-shaped lower beam of the first connecting beam in the third direction;
the width of the I-shaped upper beam of the second connecting beam in the third direction is greater than that of the I-shaped lower beam of the second connecting beam in the third direction;
and the I-shaped upper beam of the first connecting beam and the I-shaped upper beam of the second connecting beam are both positioned on one side close to the first mounting surface.
6. The air suspension bracket of claim 3, further comprising a plurality of reinforcing ribs, wherein the reinforcing ribs are disposed between the upper and lower i-beams of the first connecting beam and between the upper and lower i-beams of the second connecting beam.
7. The air suspension bracket of claim 3 further comprising a shock absorber mounting portion disposed on the i-shaped upper beam of the first or second connecting beam.
8. The air suspension bracket according to claim 7, wherein a direction intersecting both the first direction and the second direction is defined as a third direction, and the third direction intersects a direction in which an i-shaped upper beam of the first connecting beam is directed toward an i-shaped lower beam of the first connecting beam;
the shock absorber mounting part is arranged along the third direction in an extending mode and is provided with a shock absorber mounting hole which is formed along the third direction in an extending mode, and the shock absorber mounting hole is eccentrically arranged relative to the shock absorber mounting part.
9. The air suspension trailing arm of claim 7, wherein the shock absorber mounting portion is provided on the first connecting beam;
the second tie-beam is in the transaxle installation department with the length that extends between the second installation department, with first tie-beam is in the transaxle installation department with the length ratio scope that extends between the first installation department is 1.15-1.35.
10. The air suspension bracket according to claim 1, further comprising a lower thrust rod mounting portion, wherein the lower thrust mounting portion is disposed on a side of the drive axle mounting portion away from the first mounting surface, and defines a thrust rod mounting space with the drive axle mounting portion.
11. An air suspension system comprising two adapter seats, two air springs and an air suspension trailing arm according to any one of claims 1 to 10;
the second installation surface and the third installation surface are sequentially provided with the adapter and the air spring.
12. The air suspension system of claim 11 further comprising a first fastener and a second fastener;
the first fastening piece is connected with the air spring and at least partially protrudes relative to the air spring, and the adapting seat, the first mounting part or the second mounting part and the second fastening piece are sequentially sleeved on the first fastening piece;
the second fastener is used for fixing the adapter seat, the first mounting part or the second mounting part on the first fastener.
13. A vehicle characterized by comprising the air suspension system of any one of claims 11-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312124.XA CN113895197A (en) | 2021-11-08 | 2021-11-08 | Air suspension trailing arm, air suspension system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312124.XA CN113895197A (en) | 2021-11-08 | 2021-11-08 | Air suspension trailing arm, air suspension system and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN113895197A true CN113895197A (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312124.XA Pending CN113895197A (en) | 2021-11-08 | 2021-11-08 | Air suspension trailing arm, air suspension system and vehicle |
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| Country | Link |
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| CN (1) | CN113895197A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040155426A1 (en) * | 2003-02-12 | 2004-08-12 | Xinyu Wen | Multi-function bracket for an air suspension |
| US20040232646A1 (en) * | 2000-11-27 | 2004-11-25 | Peters Scott R | Vehicle suspension system |
| CN107199840A (en) * | 2017-07-06 | 2017-09-26 | 江苏汤臣汽车零部件有限公司 | A kind of air suspension trailing arm |
| CN209305283U (en) * | 2018-12-17 | 2019-08-27 | 江铃重型汽车有限公司 | A kind of integrated form equalizer |
| CN111873736A (en) * | 2020-07-28 | 2020-11-03 | 一汽解放汽车有限公司 | Air suspension |
-
2021
- 2021-11-08 CN CN202111312124.XA patent/CN113895197A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040232646A1 (en) * | 2000-11-27 | 2004-11-25 | Peters Scott R | Vehicle suspension system |
| US20040155426A1 (en) * | 2003-02-12 | 2004-08-12 | Xinyu Wen | Multi-function bracket for an air suspension |
| CN107199840A (en) * | 2017-07-06 | 2017-09-26 | 江苏汤臣汽车零部件有限公司 | A kind of air suspension trailing arm |
| CN209305283U (en) * | 2018-12-17 | 2019-08-27 | 江铃重型汽车有限公司 | A kind of integrated form equalizer |
| CN111873736A (en) * | 2020-07-28 | 2020-11-03 | 一汽解放汽车有限公司 | Air suspension |
Non-Patent Citations (1)
| Title |
|---|
| 王新杰、伍君勇: "钢结构设计基本原理", 北京理工大学出版社, pages: 123 - 124 * |
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Application publication date: 20220107 |