CN109551985A - A kind of air spring assembly and airsuspension system - Google Patents
A kind of air spring assembly and airsuspension system Download PDFInfo
- Publication number
- CN109551985A CN109551985A CN201811416402.4A CN201811416402A CN109551985A CN 109551985 A CN109551985 A CN 109551985A CN 201811416402 A CN201811416402 A CN 201811416402A CN 109551985 A CN109551985 A CN 109551985A
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- China
- Prior art keywords
- air bag
- spring assembly
- air spring
- piston seat
- installing port
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- 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.)
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- 238000001514 detection method Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 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
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
- B60G11/27—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
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
Abstract
The invention discloses a kind of air spring assembly and airsuspension systems.The air spring assembly includes air bag upper cover, air bag piston seat, air bag, guiding telescopic machanism and footstock；Described air bag one end is fixed on the air bag on lid by the first fixed device, and the other end is fixed on the air bag piston seat by the second fixed device；The first installing port is offered on lid on the air bag, first installing port is corresponded on the air bag piston seat and offers the second installing port；The guiding telescopic machanism is fixed between the air bag upper cover and the air bag piston seat by first installing port and second installing port, the collapsing length of the guiding telescopic machanism is corresponding with the flexible stroke of the air bag, and one end of the guiding telescopic machanism is fixedly connected with wheel steering section；The footstock is fixedly connected with the other end of the air bag upper cover or the guiding telescopic machanism.Present invention realization can apply air spring on the higher vehicle of load rank.
Description
Technical field
The present invention relates to air spring technical fields, and in particular to a kind of air spring assembly and airsuspension system.
Background technique
The air suspension for being applicable in vehicle is mainly made of air spring and damper two parts, on the one hand utilizes air spring
The adjustable height of vehicle chassis is controlled, buffer of damper damping is on the other hand utilized.The mounting means of air spring and damper
There are mainly two types of, one of which is that air spring seal is set on the piston rod of damper, and the piston rod of damper is made
For the guiding telescopic machanism of air spring, so that damper and air spring be integrated；Another kind is by air spring
Separately positioned with damper, i.e., air spring is independently arranged, and this independent air spring does not have guiding telescopic machanism.
For vehicle higher for load rank, its own complete vehicle curb weight is heavier, travels on rough road
The impact load generated when face will be bigger, therefore, should if applying air spring on the higher vehicle of load rank
Air spring will not only bear biggish longitudinal force, it is also necessary to bear biggish lateral force.
In addition, the heavier mass that this kind of vehicle is reorganized and outfit due to itself vehicle, it will usually damper is independently arranged, then herein
Independent air spring can be only applied on class vehicle, although existing independent air spring can carry very big longitudinal force,
But very big lateral force can not be carried.Allow to the piston rod that air spring seal is set in the damper of such vehicle
On, using the piston rod of damper as the guiding telescopic machanism of air spring, since the load of such vehicle is larger, damper
Piston rod is thinner, under the impact of long-time greater impact load, it will damage between the piston rod of damper and work cylinder barrel
Leakproofness, lead to work cylinder barrel oil leak, substantially reduce the service life of damper.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State a kind of air spring assembly and airsuspension system of problem.
According to one aspect of the present invention, a kind of air spring assembly is provided, the air spring assembly includes air bag
Upper cover, air bag piston seat, air bag, guiding telescopic machanism and footstock；Described air bag one end is fixed on institute by the first fixed device
It states on air bag on lid, the other end is fixed on the air bag piston seat by the second fixed device；It is opened up on lid on the air bag
There is the first installing port, first installing port is corresponded on the air bag piston seat and offers the second installing port；Pass through described first
Installing port and second installing port by the guiding telescopic machanism be fixed on the air bag upper cover and the air bag piston seat it
Between, the collapsing length of the guiding telescopic machanism is corresponding with the flexible stroke of the air bag, and the one of the guiding telescopic machanism
End is fixedly connected with wheel steering section；The footstock and the other end of the air bag upper cover or the guiding telescopic machanism are fixed
Connection.
Optionally, the guiding telescopic machanism includes telescopic rod and retracting cylinder, and one end of the telescopic rod passes through described the
One installing port is fixedly mounted on the footstock, and the other end moves back and forth in the retracting cylinder；One end of the retracting cylinder is logical
It crosses second installing port to be mounted on the air bag piston seat, the other end is fixedly connected with the wheel steering section.
It is alternatively possible to which one end of the retracting cylinder is pacified by second installing port by any one following mode
On the air bag piston seat:
The end position of the corresponding air bag piston seat is provided with fixed support portion, the fixed branch outside the retracting cylinder
Support part is used to support the fixed air bag piston seat；
Alternatively, the second installing port on one end of the retracting cylinder and the air bag piston seat is interference fitted and connects；
Alternatively, at least one card slot is offered inside the second installing port on the air bag piston seat, the retracting cylinder
The external corresponding card slot of one end is equipped with buckle, and the air bag piston seat and the retracting cylinder pass through the card slot and the card
Button is fixedly connected.
Optionally, guiding device is equipped between the telescopic rod and the retracting cylinder, the guiding device is set in described
On telescopic rod and contact is in the retracting cylinder.
Optionally, the guiding device includes fixed guide component and guide piston；Alternatively, the guiding device includes solid
Determine guiding parts；
The fixed guide component is set on the telescopic rod and contact is in one end of the retracting cylinder and described second
Installing port；
The guide piston is set in the end of the other end of the telescopic rod.
Optionally, limiting device is provided between the telescopic rod and the retracting cylinder；
The limiting device is sheathed on the telescopic rod, for by cooperating described in restriction with the guiding device
The distance that telescopic rod moves back and forth in the retracting cylinder；
The setting position of the limiting device is corresponding with the flexible stroke of the air bag.
Optionally, second installing port corresponds to the retracting cylinder and offers at least one groove, and the groove is for pacifying
Dress prevents discouraged sealing ring.
Optionally, first installing port corresponds to the telescopic rod and offers at least one groove, and the groove is for pacifying
Dress prevents discouraged sealing ring.
Optionally, the air spring assembly further includes position-limiting drum, and one end of the position-limiting drum and the air bag upper cover are solid
Fixed connection, the other end prolong Shen and after covering the air bag piston seat with the first half radial air bag piston seat directions to be less than
Second radius of first radius continues to prolong Shen to air bag piston seat direction.
Optionally, the air spring assembly further includes dust cover, and the dust cover is sheathed on the retracting cylinder and fixation
In the opening of the position-limiting drum.
According to another aspect of the present invention, a kind of airsuspension system is provided, the airsuspension system includes extremely
A few electronic control unit ECU, detection unit, solenoid valve block and the air spring as described in claim 1-10 any one
Component；The detection unit is identical as the quantity of the air spring assembly；
Each ECU is respectively connected with the corresponding detection unit and the solenoid valve block；
The detection unit, for detecting the elevation information and/or pressure information of the air spring assembly, and will be described
Elevation information and/or pressure information are sent to the ECU being correspondingly connected with；
The ECU, the elevation information and/or pressure information sent for receiving the detection unit, and by the height
Information and/or pressure information are compared with corresponding threshold value, send control signal to the solenoid valve block according to comparison result；
The solenoid valve block controls the flexible stroke of air spring assembly for being operated according to the control signal,
To control the adjustable height of vehicle chassis.
The beneficial effects of the present invention are: technical solution of the present invention devises a kind of air spring assembly, by air bag
Guiding telescopic machanism is set between upper cover and air bag piston seat, carries lateral force for guiding telescopic machanism as the guiding of air bag,
Air spring can be applied on the higher vehicle of load rank by realizing, compressed or extended automatically by controlling air spring, more
Add the adjustable height for neatly controlling the chassis of such vehicle, enhances the vehicle body stability of such vehicle or leading to for complex road condition
On the other hand the property crossed avoids such vehicle and encounters height in the process of moving on the one hand enhance the comfort of vehicle
The chassis of uneven road damage vehicle, the significant increase safety of such vehicle.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of one of according to an embodiment of the present invention air spring assembly；
Fig. 2 shows the structural schematic diagrams of another air spring assembly according to an embodiment of the present invention；
Fig. 3 shows the schematic diagram of one of according to an embodiment of the present invention airsuspension system.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Embodiment one:
Fig. 1 shows the structural schematic diagram of one of according to an embodiment of the present invention air spring assembly, such as Fig. 1 institute
Show, air spring assembly 100 includes air bag upper cover 10, air bag piston seat 20, air bag 30, guiding telescopic machanism 40 and footstock 50；
30 one end of air bag is fixed in air bag upper cover 10 by the first fixed device 101 (such as spiral clamping hoop or fastening ring etc.), separately
One end is fixed on air bag piston seat 20 by the second fixed device 201 (such as spiral clamping hoop or fastening ring etc.)；The air bag
The first installing port 102 is offered in upper cover 10, and first installing port 102 is corresponded on the air bag piston seat 20 and offers the second installation
Mouth 202；Respectively the purpose that air bag upper cover 10 and air bag piston seat 20 open up installing port be in order to install guiding telescopic machanism 40,
One end of guiding telescopic machanism 40 is mounted in air bag upper cover 10 by the first installing port 102, while passing through the second peace
The other end of guiding telescopic machanism 40 is mounted on air bag piston seat 20 by dress mouth 202, thus by guiding telescopic machanism 40
It is fixed between air bag upper cover 10 and air bag piston seat 20, the collapsing length of guiding telescopic machanism 40 and the flexible stroke of air bag 30
It is corresponding, that is to say, that the collapsing length of guiding telescopic machanism 40 follows the flexible stroke alteration of air bag 30.Guiding telescopic machanism
40 one end is fixedly connected with wheel steering section；Footstock 50 and the other end of air bag upper cover 10 or guiding telescopic machanism 40 are fixed
Connection.
When footstock 50 is fixedly connected with the other end of guiding telescopic machanism 40, as shown in Figure 1, guiding telescopic machanism 40
Location hole, location hole of the positioning pin 80 also cross the other end of guiding telescopic machanism 40 are provided on the other end and footstock 50
With the location hole on footstock 50, the other end of guiding telescopic machanism 40 can be fixed on footstock 50, so that air bullet
Spring component is mounted on vehicle chassis by footstock 50.It should be noted that can also be using other modes, by guide extension
The other end of mechanism 40 is fixed on footstock 50, and the application is fixed on the side on footstock 50 to the other end of guiding telescopic machanism 40
Formula is not further limited.
When footstock 50 is fixedly connected with air bag upper cover 10, Fig. 2 shows another according to an embodiment of the present invention
The structural schematic diagram of kind air spring assembly, as shown in Fig. 2, at least one location hole is offered on footstock 50, in air bag upper cover
10 corresponding location hole settings are fluted, that is, location hole is corresponded to each other with the quantity of groove and position, by positioning pin 90 by being somebody's turn to do
Location hole is fixed in corresponding groove, so that footstock 50 is fixedly connected with air bag upper cover 10.Number of the application to location hole
Amount is not further qualified.
In addition, being also provided with air inlet 103 in air bag upper cover 10, gas tube one end is connect with air inlet 103, the other end with
Storage cylinder connection, is provided with solenoid valve block between gas tube and storage cylinder, pass through the i.e. controllable air spring assembly of solenoid valve block
It is inflatable and deflatable, to realize the adjustment of bodywork height.
By air spring assembly shown in FIG. 1 it is found that technical solution of the present invention passes through in air bag upper cover and air bag work
Guiding telescopic machanism is set between obturating plug, carries lateral force for guiding telescopic machanism as the guiding of air bag, realizes in load grade
Air spring can be applied on not higher vehicle, compressed or extended automatically by controlling air spring, control more flexiblely
The adjustable height on the chassis of such vehicle enhances the vehicle body stability of such vehicle or the passability of complex road condition, thus one
Aspect enhances the comfort of vehicle, on the other hand avoids such vehicle and encounters rugged road path loss in the process of moving
Hurt the chassis of vehicle, the significant increase safety of such vehicle.
Preferably, guiding telescopic machanism 40 includes telescopic rod 401 and retracting cylinder 402, and one end of telescopic rod 401 passes through first
Installing port 102 is fixedly mounted on footstock 50, and the other end moves back and forth in retracting cylinder 402；One end of retracting cylinder 402 passes through the
Two installing ports 202 are mounted on air bag piston seat 20, and the other end is fixedly connected with wheel steering section.
It is possible to further which one end of retracting cylinder 402 is pacified by the second installing port 202 by any one following mode
On air bag piston seat 20:
The first, the end position that air bag piston seat 20 is corresponded to outside retracting cylinder 402 is provided with fixed support portion 402_1,
Fixed support portion 402_1 is used to support fixation balloon piston seat 20.In order to which the setting for making air bag piston seat 20 more stable is being consolidated
Determine on support portion 402_1, support gasket ring can be set between air bag piston seat 20 and fixed support portion 402_1.Such as wedge shape branch
Stake pad ring.
Second, one end of retracting cylinder 402 and the second installing port 202 on air bag piston seat 20 are interference fitted and connect, mistake
Mating connection of being full of is the interference fit using two connected pieces itself come the connection realized, can be made into according to the size of magnitude of interference
Releasable connection may be alternatively configured non-disconnectable connection.Mating surface is usually cylindrical surface, is sometimes also circular conical surface.
The third, offers at least one card slot, retracting cylinder 402 inside the second installing port 202 on air bag piston seat 20
External corresponding card slot of one end be equipped with buckle, which fixes the buckle, and air bag piston seat 20 and retracting cylinder 402 pass through card
Slot is fixedly connected with buckle.Quantity and the position of card slot are set for the purpose of stablizing installation air bag piston seat 20 and retracting cylinder 402,
The application is not construed as limiting the quantity of card slot and position.
In practical applications, installation air bag piston seat and retracting cylinder, this Shen can be stablized using any one of the above mode
Please the mounting means of air bag piston seat and retracting cylinder is not construed as limiting.
Preferably, guiding device 403 is equipped between telescopic rod 401 and retracting cylinder 402, guiding device 403 is set in flexible
On bar 401 and contact is in retracting cylinder 402.The purpose that guiding device is arranged is: when telescopic rod 401 moves in retracting cylinder 402
When telescopic rod 401 is oriented to, prevent motion track of the telescopic rod 401 in retracting cylinder 402 from shifting, so that telescopic rod
The 401 vertical direction movements in retracting cylinder 402, ensure that guiding telescopic machanism 40 can carry lateral force to the greatest extent.
Further, guiding device 403 includes fixed guide component 403_1 and guide piston 403_2；Alternatively, guiding dress
Setting 403 includes fixed guide component 403_1；Fixed guide component 403_1 is set on telescopic rod 401 and contact is in retracting cylinder
402 one end and the second installing port 202, specifically, fixed guide component 403_1 includes upper and lower end, the upper end
Radius be greater than lower end radius, upper end be greater than lower end radius difference be retracting cylinder 402 wall thickness, upper end contact
In the second installing port 202, lower end contact is on the inner wall of retracting cylinder 402.The purpose that fixed guide component 403_1 is arranged is
It prevents the gas in air bag 30 from overflowing from the second installing port 202 on air bag piston seat 20, while avoiding telescopic rod 401 and existing
Motion track in retracting cylinder 402 shifts, and ensure that the vertical direction in retracting cylinder 402 of telescopic rod 401 is mobile, to protect
Lateral force can be carried to the greatest extent by having demonstrate,proved guiding telescopic machanism 40.In order to further prevent the gas in air bag 30 from air bag
It is overflowed at the second installing port 202 on piston seat 20, the corresponding retracting cylinder 402 of the second installing port 202 offers at least one groove
202_1, groove 202_1 prevent discouraged sealing ring for installing.The sealing ring includes O-shaped rubber ring and O-shaped plastic ring etc..It leads
The end of the other end of telescopic rod 401 is set in piston 403_2, setting guiding is lived while guiding parts 403_1 is arranged
403_2 is filled in, motion track of the telescopic rod 401 in retracting cylinder 402 is further avoided and shifts, ensure that telescopic rod 401
Vertical direction is mobile in retracting cylinder 402, to ensure that guiding telescopic machanism 40 can carry lateral force to the greatest extent.
Preferably, limiting device 404 is provided between telescopic rod 401 and retracting cylinder 402；Limiting device 404, which is sheathed on, to be stretched
On contracting bar 401, for by with guiding device 403 cooperate limit telescopic rod 401 moved back and forth in retracting cylinder 402 away from
From the setting position of limiting device 404 is corresponding with the flexible stroke of air bag 30.When guiding device 403 includes fixed guide portion
When part 403_1 and guide piston 403_2, limiting device 404 setting fixed guide component 403_1 and guide piston 403_2 it
Between.When guiding device 403 includes fixed guide component 403_1, limiting device 404 is sheathed on telescopic rod 401 and is arranged
The lower section of fixed guide component 403_1.Certainly, limiting device be arranged on telescopic rod be the preferable embodiment of the present embodiment,
Limiting device can also be arranged between telescopic rod and retracting cylinder, the application is to the tool for limiting device using other modes
Body setting position and length are not further limited, and enable to air bag by the position and length that change limiting device 404
30 flexible stroke is in optimum range, to enhance the service life of air bag.
Preferably, it in order to guarantee the air pressure controllability in air bag 30, is opened up in the corresponding telescopic rod 401 of the first installing port 102
There is at least one groove, which prevents discouraged sealing ring for installing, to prevent the gas in air bag 30 from pacifying from first
It fills and is overflowed at mouth 102.The sealing ring includes O-shaped rubber ring and O-shaped plastic ring etc..
In order to guarantee the safety of air spring assembly, it is preferable that air spring assembly 100 further includes position-limiting drum 60, limit
One end of position cylinder 60 is fixedly connected with air bag upper cover 10, and the other end prolongs Shen Bing with the first half radial direction air bag piston seats, 20 direction and covers
Continue to prolong Shen to 20 direction of air bag piston seat with the second radius less than the first radius after lid air bag piston seat 20, thus along limit
Position cylinder 60 forms necking.
Further, air spring assembly 100 further includes dust cover 70, and dust cover 70 is sheathed on retracting cylinder 402 and fixes
In the opening of position-limiting drum 60.Such as dust cover is fixed on to the opening of position-limiting drum 60 by spiral clamping hoop or fastening ring etc.
Place.The purpose that dust cover is arranged is: with prevent air spring from pollution (such as travel running dust, sand and
Small stone on road).
It should be noted that one end of guiding telescopic machanism 40 is provided with lower cover 405, guiding telescopic machanism 40 is by being somebody's turn to do
Lower cover 405 is fixedly connected with wheel steering section, which includes that interference fit is connected with spiral.Lower cover 405 is right
Guiding telescopic machanism 40 is answered to be provided at least one groove 405_1, groove 405_1 prevents discouraged sealing ring for installing,
The sealing ring includes O-shaped rubber ring and O-shaped plastic ring etc..
In order to solve the problems, such as the trapped gas of guiding telescopic machanism 40, can be opened on guide piston 403_2 and/or telescopic rod 401
If venthole.It, can be to two venthole 403_2_1 of setting, so that telescopic rod 401 when guide piston 403_2 opens up venthole
It can steadily be moved in retracting cylinder 402.When opening up venthole on telescopic rod 401, at least one is opened up in the bottom of telescopic rod 401
A longitudinal slot 401_1 opens up at least two lateral slot 401_2, two lateral slots in the end of longitudinal slot 401_1
401_2 is in same level；Gas connection between one end and guide piston 403_2 and lower cover of longitudinal slot 401_1,
The other end is connected to transverse direction slot 401_2；One end of lateral slot 401_2 is connected to longitudinal slot 401_1, the other end and limit
Gas connection between device 404 and guide piston 403_2；So that telescopic rod 401 can steadily move in retracting cylinder 402.?
In practical application, venthole can be set on guide piston 403_2, venthole can also be set on telescopic rod 401, it can also
Venthole to be arranged on guide piston 403_2 and telescopic rod 401 simultaneously, the application does not limit the quantity of venthole and position
It is fixed, as long as can guarantee that telescopic rod 401 can steadily move in retracting cylinder 402.
Embodiment two:
Air inlet on existing air spring is generally located on the upper lid of air bag, as shown in Figure 1, storage cylinder and air inlet
The distance in hole farther out, needs the air inlet of longer gas tube connection storage cylinder gas outlet and air spring, longer gas tube
The wiring that will lead to vehicle air suspension system is complicated, and installation is inconvenient and maintenance is inconvenient.Especially when installing air spring
Since the air inlet setting of air spring is bad, causes the shape of gas tube to be distorted, not only greatly reduces air inlet rate,
And reduce the service life of gas tube.In order to solve this problem, the application devises another air spring assembly.
Still as shown in Fig. 2, the novel air spring component 200 include air bag upper cover 10, air bag piston seat 20, air bag 30,
Guiding telescopic machanism 40 and footstock 50；30 one end of air bag (such as spiral clamping hoop or fastens ring by the first fixed device 101
Deng) be fixed in air bag upper cover 10, the other end is fixed by the second fixed device 201 (such as spiral clamping hoop or fastening ring etc.)
On air bag piston seat 20；Air bag upper cover 10 is fixedly connected with footstock 50, and the first installing port 102 is offered in air bag upper cover 10,
Corresponding first installing port 102 offers the second installing port 202 on air bag piston seat 20；Respectively in air bag upper cover 10 and air bag piston
The purpose that seat 20 opens up installing port is in order to install guiding telescopic machanism 40, by the first installing port 102 by guiding telescopic machanism
40 one end is mounted in air bag upper cover 10, while passing through the second installing port 202 for the other end of guiding telescopic machanism 40
Be mounted on air bag piston seat 20, thus by guiding telescopic machanism 40 be fixed on air bag upper cover 10 and air bag piston seat 20 it
Between, the collapsing length of guiding telescopic machanism 40 and the flexible stroke of air bag 30 are corresponding, that is to say, that guiding telescopic machanism 40
Collapsing length follows the flexible stroke alteration of air bag 30.One end of guiding telescopic machanism 40 is fixedly connected with wheel steering section, separately
One end is fixedly connected with air bag upper cover 10；
The other end of guiding telescopic machanism 40 offers at least one longitudinal slot 401_3 and at least one lateral slot
401_4；One end of lateral slot 401_4 is connected to one end of longitudinal slot 401_3, the air accommodating chamber of the other end and air bag 30
Connection；The corresponding longitudinal slot 401_3 of footstock 50 offers notch；Gas tube is by the notch with longitudinal slot 401_3's
Other end connection.It should be noted that multiple cross can both be arranged on same upright plane for slot 401_3 longitudinally in each
To slot 401_4, multiple lateral slot 401_4 can also be set in same level.In practical applications, can according into
Quantity, position and the radius for needing to be arranged longitudinal slot, lateral slot of gas velocity degree, the application is to longitudinal slot, lateral slot
Quantity, position and radius be not further limited.
Pass through air spring assembly shown in Fig. 2, it is known that, technical solution of the present invention on the one hand by air bag upper cover and
Guiding telescopic machanism is set between air bag piston seat, carries lateral force for guiding telescopic machanism as the guiding of air bag, realizes
Air spring can be applied on the higher vehicle of load rank, compressed or extended automatically by controlling air spring, it is more flexible
Ground controls the adjustable height on the chassis of such vehicle, enhances the vehicle body stability of such vehicle or the passability of complex road condition,
To on the one hand enhance the comfort of vehicle, on the other hand avoid such vehicle encounter in the process of moving it is rugged
Road damages the chassis of vehicle, the significant increase safety of such vehicle；On the other hand opened up on guiding telescopic machanism to
The air inlet of a few longitudinal slot and at least one lateral slot, so that gas enters air bag from footstock and guiding telescopic machanism
Interior, not only avoiding interminable gas tube causes the wiring of vehicle air suspension system complicated, so that airsuspension system installation,
It safeguards more convenient；And the shape for avoiding the gas tube when installing air spring is distorted, and ensure that air inlet rate, extends
The service life of gas tube.In addition, multiple transverse grooves can both be arranged on same upright plane for slot longitudinally in each
Multiple lateral slots can also be arranged in hole in same level, it is seen then that by setting longitudinal slot, lateral slot quantity,
Position and radius can further promote the aeration speed of air bag.
Preferably, the other end of guiding telescopic machanism 40 offers a longitudinal slot 401_3 and two lateral slots
401_4, two transverse direction slot 401_4 are located in same horizontal line.Specifically, longitudinal slot 401_3 is located at guiding telescopic machanism
On 40 central axis.
Preferably, longitudinal slot 401_3 is cylindrical or cuboid；Lateral slot 401_4 is cylindrical or long
Cube shape.In practical applications, it can be set according to actual needs the shape of longitudinal slot and lateral slot, the application is to longitudinal direction
The shape of slot and lateral slot is not further limited.
Preferably, it includes: that at least one location hole is offered on footstock 50 that air bag upper cover 10 is fixedly connected with footstock 50
501, it is arranged fluted 101 in the corresponding location hole 501 of air bag upper cover 10, positioning pin 90 (such as screw) passes through the location hole
501 are fixed in corresponding groove 101, so that footstock 50 is fixedly connected with air bag upper cover 10.Location hole and groove one are a pair of
It answers, quantity is identical.In the present embodiment, the quantity of location hole is 2, and the application is not construed as limiting the quantity of location hole and position,
Air bag upper cover 10 can be fixedly connected with footstock 50.
Preferably, groove is opened up on footstock 50 or air bag upper cover 10, which prevents discouraged sealing for installing
Circle, to prevent the gas in air bag 30 from overflowing between footstock 50 and air bag upper cover 10, and then ensure that gas gas in air bag
The controllability of pressure.
Preferably, still as shown in Fig. 2, guiding telescopic machanism 40 include telescopic rod 401 and retracting cylinder 402, telescopic rod 401
One end is mounted on footstock 50 by the first installing port 102, and the other end slides in retracting cylinder 402；One end of retracting cylinder 402 is logical
It crosses the second installing port 202 to be mounted on air bag piston seat 20, the other end is fixedly connected with wheel steering section；The one of telescopic rod 401
End offers at least one longitudinal slot 401_1 and at least one lateral slot 401_2.
It should be noted that in the present embodiment air spring assembly in addition to the setting of air inlet it is different outer, other structures with
The course of work and the structure of the air spring assembly in embodiment one and the course of work are corresponding identical, and identical content repeats no more.
Embodiment three:
Fig. 3 shows the schematic diagram of one of according to an embodiment of the present invention airsuspension system, as shown in figure 3,
Airsuspension system 200 includes at least one electronic control unit ECU810, detection unit 820, solenoid valve block 830 and such as implements
The air spring assembly 100 that example one or such as embodiment two are recorded；The quantity phase of detection unit 820 and air spring assembly 100
Together；Each ECU810 is respectively connected with corresponding detection unit 820 and solenoid valve block 830；
Detection unit 820, for detecting the elevation information and/or pressure information of air spring assembly 100, and highly by this
Information and/or pressure information are sent to the ECU810 being correspondingly connected with；Preferably, detection unit 820 include height sensor and/or
Pressure sensor, to be detected using the elevation information of height sensor detection air spring assembly 100 using pressure sensor
The pressure information of air spring assembly 100.Preferably, detection unit 820 can detect the height letter of air spring assembly 100 simultaneously
Breath and pressure information.
ECU810, for receiving the elevation information and/or pressure information of the transmission of detection unit 820, and by the elevation information
And/or pressure information is compared with corresponding threshold value, sends control signal to solenoid valve block 830 according to comparison result；
Solenoid valve block 830 includes intake solenoid valve group and outlet solenoid valve block, for being operated according to the control signal,
The flexible stroke for controlling air spring assembly 100, to control the adjustable height of vehicle chassis.
Airsuspension system shown in Fig. 3 is applied on the higher vehicle of load rank, so that the higher vehicle of load rank
Chassis adjustable height, enhance the vehicle body stability of such vehicle or the passability of complex road condition, thus on the one hand increase
The strong comfort of vehicle, on the other hand avoids such vehicle and encounters rugged road damage vehicle in the process of moving
Chassis, the significant increase safety of such vehicle.In addition, the airsuspension system can keep such vehicle in any load
Height is almost unchanged under lotus, and vehicle can also be made to have different height under same load.
The present embodiment is the airsuspension system designed by taking the vehicle of 8 wheel drives as an example, in other embodiments, can be with needle
To the Car design airsuspension system of any amount driving wheel.The application is not construed as limiting the quantity of the driving wheel of vehicle.
It should be noted that the structure and the course of work of the air spring assembly 100 in the present embodiment and embodiment one or
The structure and the course of work for the air spring assembly 100 that person's embodiment two is recorded correspond to identical, and identical content repeats no more.
In conclusion technical solution of the present invention devises a kind of air spring assembly, by air bag upper cover and air bag
Guiding telescopic machanism is set between piston seat, carries lateral force for guiding telescopic machanism as the guiding of air bag, realizes in load
Air spring can be applied on the higher vehicle of rank, compressed or extended automatically by controlling air spring, control more flexiblely
The adjustable height for making the chassis of such vehicle enhances the vehicle body stability of such vehicle or the passability of complex road condition, thus
On the one hand the comfort of vehicle is enhanced, on the other hand avoids such vehicle and encounters rugged road in the process of moving
Damage the chassis of vehicle, the significant increase safety of such vehicle.
The above is merely preferred embodiments of the present invention, it is not intended to limit the scope of the present invention.It is all in this hair
Any modification, equivalent replacement, improvement and so within bright spirit and principle, are included within the scope of protection of the present invention.
Claims (11)
1. a kind of air spring assembly, which is characterized in that the air spring assembly includes air bag upper cover, air bag piston seat, gas
Capsule, guiding telescopic machanism and footstock；
Described air bag one end is fixed on the air bag on lid by the first fixed device, and the other end is solid by the second fixed device
It is scheduled on the air bag piston seat；
The first installing port is offered on lid on the air bag, first installing port is corresponded on the air bag piston seat and offers the
Two installing ports；
By first installing port and second installing port by the guiding telescopic machanism be fixed on the air bag upper cover and
Between the air bag piston seat, the collapsing length of the guiding telescopic machanism is corresponding with the flexible stroke of the air bag, described
One end of guiding telescopic machanism is fixedly connected with wheel steering section；
The footstock is fixedly connected with the other end of the air bag upper cover or the guiding telescopic machanism.
2. air spring assembly as described in claim 1, which is characterized in that the guiding telescopic machanism includes telescopic rod and stretches
One end of contracting cylinder, the telescopic rod is fixedly mounted on the footstock by first installing port, and the other end is described flexible
It is moved back and forth in cylinder；One end of the retracting cylinder is mounted on the air bag piston seat by second installing port, the other end
It is fixedly connected with the wheel steering section.
3. air spring assembly as claimed in claim 2, which is characterized in that can will be described by any one following mode
One end of retracting cylinder is mounted on the air bag piston seat by second installing port:
The end position of the corresponding air bag piston seat is provided with fixed support portion, the fixed support portion outside the retracting cylinder
It is used to support the fixed air bag piston seat；
Alternatively, the second installing port on one end of the retracting cylinder and the air bag piston seat is interference fitted and connects；
Alternatively, offering at least one card slot, one end of the retracting cylinder inside the second installing port on the air bag piston seat
The external corresponding card slot to be equipped with buckle, the air bag piston seat and the retracting cylinder solid by the card slot and the buckle
Fixed connection.
4. air spring assembly as claimed in claim 2, which is characterized in that be equipped between the telescopic rod and the retracting cylinder
Guiding device, the guiding device is set on the telescopic rod and contact is in the retracting cylinder.
5. air spring assembly as claimed in claim 4, which is characterized in that the guiding device include fixed guide component and
Guide piston；Alternatively, the guiding device includes fixed guide component；
The fixed guide component is set on the telescopic rod and the one end and second installation of contact in the retracting cylinder
Mouthful；
The guide piston is set in the end of the other end of the telescopic rod.
6. air spring assembly as claimed in claim 4, which is characterized in that be arranged between the telescopic rod and the retracting cylinder
There is limiting device；
The limiting device is sheathed on the telescopic rod, for limiting described stretch by cooperating with the guiding device
The distance that bar moves back and forth in the retracting cylinder；
The setting position of the limiting device is corresponding with the flexible stroke of the air bag.
7. air spring assembly as claimed in claim 2, which is characterized in that second installing port corresponds to the retracting cylinder and opens
Equipped at least one groove, the groove prevents discouraged sealing ring for installing.
8. air spring assembly as claimed in claim 2, which is characterized in that first installing port corresponds to the telescopic rod and opens
Equipped at least one groove, the groove prevents discouraged sealing ring for installing.
9. air spring assembly as described in claim 1, which is characterized in that the air spring assembly further includes position-limiting drum,
One end of the position-limiting drum is fixedly connected with the air bag upper cover, and the other end is prolonged with the first half radial air bag piston seat directions
Simultaneously continued with the second radius for being less than first radius to the air bag piston seat side after covering the air bag piston seat Shen
Xiang Yanshen.
10. air spring assembly as claimed in claim 9, which is characterized in that the air spring assembly further includes dust cover,
The dust cover is sheathed on the retracting cylinder and is fixed on the opening of the position-limiting drum.
11. a kind of airsuspension system, which is characterized in that the airsuspension system includes at least one electronic control unit
ECU, detection unit, solenoid valve block and the air spring assembly as described in claim 1-10 any one；The detection unit
It is identical as the quantity of the air spring assembly；
Each ECU is respectively connected with the corresponding detection unit and the solenoid valve block；
The detection unit, for detecting the elevation information and/or pressure information of the air spring assembly, and by the height
Information and/or pressure information are sent to the ECU being correspondingly connected with；
The ECU, the elevation information and/or pressure information sent for receiving the detection unit, and by the elevation information
And/or pressure information is compared with corresponding threshold value, sends control signal to the solenoid valve block according to comparison result；
The solenoid valve block controls the flexible stroke of air spring assembly for being operated according to the control signal, thus
Control the adjustable height of vehicle chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416402.4A CN109551985A (en) | 2018-11-26 | 2018-11-26 | A kind of air spring assembly and airsuspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416402.4A CN109551985A (en) | 2018-11-26 | 2018-11-26 | A kind of air spring assembly and airsuspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109551985A true CN109551985A (en) | 2019-04-02 |
Family
ID=65867477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811416402.4A Pending CN109551985A (en) | 2018-11-26 | 2018-11-26 | A kind of air spring assembly and airsuspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109551985A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2243644A1 (en) * | 2009-04-23 | 2010-10-27 | ArvinMeritor Technology, LLC | Air supply system for active air suspension |
| CN102287469A (en) * | 2011-06-22 | 2011-12-21 | 杨洁 | Limiting buffer and capacity composite air spring capable of adjusting static stiffness |
| CN108638778A (en) * | 2018-06-19 | 2018-10-12 | 四川立地车辆底盘科技有限公司 | Built-in list capsule suspension gas spring |
| CN209719185U (en) * | 2018-11-26 | 2019-12-03 | 安路普（北京）汽车技术有限公司 | A kind of air spring assembly and airsuspension system |
-
2018
- 2018-11-26 CN CN201811416402.4A patent/CN109551985A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2243644A1 (en) * | 2009-04-23 | 2010-10-27 | ArvinMeritor Technology, LLC | Air supply system for active air suspension |
| CN102287469A (en) * | 2011-06-22 | 2011-12-21 | 杨洁 | Limiting buffer and capacity composite air spring capable of adjusting static stiffness |
| CN108638778A (en) * | 2018-06-19 | 2018-10-12 | 四川立地车辆底盘科技有限公司 | Built-in list capsule suspension gas spring |
| CN209719185U (en) * | 2018-11-26 | 2019-12-03 | 安路普（北京）汽车技术有限公司 | A kind of air spring assembly and airsuspension system |
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