CN107323528A - A kind of improved air suspension - Google Patents
A kind of improved air suspension Download PDFInfo
- Publication number
- CN107323528A CN107323528A CN201710547932.1A CN201710547932A CN107323528A CN 107323528 A CN107323528 A CN 107323528A CN 201710547932 A CN201710547932 A CN 201710547932A CN 107323528 A CN107323528 A CN 107323528A
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- China
- Prior art keywords
- longeron
- crossbeam
- main body
- push rod
- trailing arm
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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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
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/126—Mounting of pneumatic springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to a kind of improved air suspension, a pair of symmetrically arranged longerons are provided with some connecting holes on longeron；One is arranged on the crossbeam between two longerons, and the crossbeam includes a main body of cross-beam, and the main body of cross-beam is by a crossbeam body and is symmetricly set on the longeron adpting flange at crossbeam body two ends for a pair and is integrally cast；A pair of vehicle bridge installed in longeron lower end, the two ends of vehicle bridge pass through trailing arm and support fixation；Four pairs be separately mounted to air bag connection panel on air bag；The suspension strut for being arranged on the outboard end of longeron two a pair；Two pairs be separately positioned on suspension strut two ends damper；The connecting lining plate being arranged in longeron for a pair.The advantage of the invention is that：The air suspension of the present invention can improve the sealing property of crossbeam on the basis of supply, and ensure the structural strength of crossbeam, while manufacturing enhanced convenience, and can reduce overall structure height so that structure is more stablized.
Description
Technical field
The present invention relates to automobile manufacturing field, specifically a kind of improved air suspension.
Background technology
Since air suspension is born from 19th-century mid-term, the development in a century has been experienced, experienced " pneumatic spring-
Air bag compound suspension → Semi-active air suspension → center inflation/deflation suspension（That is ECAS electronic control air suspensions system）" etc. it is a variety of
Change type.Just it is used on load truck, motor bus, car and railway locomotive to nineteen fifties.At present
External senior motor bus almost all uses air suspension, and heavy duty truck is using the ratio of air suspension up to more than 80%, sky
The application amount that gas is suspended on light-duty vehicle is also rising rapidly.Part car also gradually installs and uses air suspension, at some
Special vehicle（Such as higher measuring truck, ambulance, extraordinary military vehicle and the container carrier of requirement are required to shockproof）On,
The use of air suspension is almost unique selection.
At present, with the development of truck hydraulic pressure and pneumatic control system technology, gas consumption of the vehicle to compressed air
Significantly increase.In order to meet the requirement that vehicle gas consumption increases, solution mainly has two kinds：1. improve compressed air system pressure
Power；2. increase gas receiver capacity or quantity.Compressed air system pressure is improved, it is necessary to which gas circuit correlation kit meets its property
Can, implement more complicated.Therefore, it is the measure easily realized to increase gas receiver capacity and quantity.But, the arrangement of gas receiver
Increasing number, causes problems with：Increase the weight and cost of brakes；It is more in SWB vehicle or system configuration part
Vehicle, such as tractor have that gas receiver arrangement space is narrow and small or phenomenon of difficult arrangement.
Therefore, for above-mentioned phenomenon, a kind of crossbeam with gas storage function is just refer in patent CN204527327U
Assembly, it includes crossbeam body, back axle control module, enters outlet interface, discharging valve interface and support etc.；Crossbeam body is pipe
Shape body is used as caisson, crossbeam body preferably by two symmetrical crossbeam connectors and a tubular body welding fabrication,
While strengthening longitudinal beam intensity, the caisson of closing is formed；Crossbeam connector is provided with into outlet interface, bolt connection
Bearing, discharging valve interface and distance rod connects bearing.Enter outlet interface by air pipe and joint by source of the gas, crossbeam body and
Back axle control module is connected, and bolt connection is carried out with longitudinal beam on crossbeam connector.The utility model is in increase gas storage volume
While, vehicle gas receiver quantity is reduced, the weight and cost of brakes can be accordingly reduced, arrangement space is saved；By
Arrange that each valve member such as integrated back axle control module reduces air path elements quantity, shortens air pipe long close to vehicle bridge in crossbeam assembly
Degree, improves the braking response time.
In said structure, although be used as air container using crossbeam and use, so as to reduce gas receiver quantity, save
The arrangement space of vehicle.But, its crossbeam body is split-type structural, is used by a tubular body and two symmetrical crossbeams
Connector is welded, and crossbeam body needs to use instead of gas receiver, therefore sealing property requires very high, for welding
The requirement of quality is stricter, also relatively high simultaneously for the required precision between part, the fiber crops that manufacture, assembling are also just compared
It is tired；In addition, for crossbeam ectosome, it is used for the left-right longeron of connecting vehicle frame, therefore place is if wall thickness is too thin, crossbeam
The structural strength of body cannot be ensured, so as to have influence on overall connection, still, the crossbeam body needs as gas receiver again
To use, if if wall thickness is too thick, the gas of storage also just accordingly tails off.
And for example, a kind of left/right haunched beam support for air suspension of passenger vehicle is just refer in patent CN202192958U, the bottom of by
Plate, the connection end of lateral stability connecting rod, the connection end of longitudinal stability connecting rod, air bag connection panel, the tie point of damper
It is integrally constituted, is characterized in that：Material uses QT600-3 spheroidal graphite cast-iron, and the tie point of damper is one on bottom plate
Rocker bar bearing；Bottom plate, the connection end of lateral stability connecting rod, the connection end of longitudinal stability connecting rod, air bag connection panel, hinge
Bearing is an entirety by casting once-forming.The utility model is changed the tie point of damper by original right angle setting hole
Enter for rocker bar bearing, it is to avoid the problem of connecting rod of damper fractures.QT600-3 spheroidal graphite cast-iron is used for material, each
Functional part one-step casting is configured to an entirety, both adds intensity, can mitigate weight, production cost and forged steel weldment again
Compare, saved more than 30%, realize energy-saving.
Although the problem of connecting rod that the left/right trailing arm boom support in said structure also solves damper fractures, realize
It is energy-saving.But, it is during use, however it remains certain defect：The height of its air bag connection panel is made
It is relatively high, and air bag connection panel is used for installing air bag, therefore along with air bag connects the height that panel adds air bag
Degree is just relatively high, and then overall structure will be made relatively high, not only installs inconvenient, structure also less stable.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of improved air suspension, the basis of supply can ensured
On, the sealing property of crossbeam is improved, and ensure the structural strength of crossbeam, while manufacturing enhanced convenience, and entirety can be reduced
Structure height so that structure is more stablized.
In order to solve the above technical problems, the technical scheme is that：A kind of improved air suspension, the crossbeam is used to connect
The left-right longeron of frame is picked up, its innovative point is：Including
A pair of symmetrically arranged longerons, are provided with some connecting holes on longeron；
One be arranged on two longerons between crossbeam, the crossbeam include a main body of cross-beam, the main body of cross-beam by a crossbeam body with
And a pair of longeron adpting flanges for being symmetricly set on crossbeam body two ends are integrally cast, while on the outer wall of crossbeam body
Also integral casting forming has V-type to push away a group, and the crossbeam body is the tubular structure of a both ends open, while long in crossbeam body
The two ends of direction of principal axis are with the air inlet with the intracavity inter-connection of crossbeam body, a gas outlet, the inwall of the crossbeam body
On be additionally provided with reinforcement convex tendon group；The end cover for being arranged on beam pipe long axis of body direction two ends a pair, the end cover
Cross section t shape, and the small one end of end cover bore stretched into the cavity of crossbeam body and by bolt and crossbeam body
It is connected, is stretched into end cover and crossbeam inboard wall of tube body of fitting is also equipped with one section in crossbeam body cavity of outer wall
Sealing ring group；
A pair of vehicle bridge installed in longeron lower end, the two ends of vehicle bridge are supported by trailing arm to be fixed, and the trailing arm includes a trailing arm master
Body, the upper surface of the trailing arm main body has a vehicle bridge support panel raised up, and four are provided with vehicle bridge support panel
The vehicle bridge fixing hole of rectangular shape distribution；One is connected to the air bag connection panel at trailing arm main body two ends, and the air bag connects panel
It is connected by a reclinate arc linkage section with trailing arm main body, so that the height of air bag connection panel is not higher than trailing arm
The height of main body, the medium position for connecting panel in air bag has a positioning mounting hole；One is connected to the straight of trailing arm main body lower end
Push rod connection unit, the straight push rod connection unit includes the straight push rod connecting seat for being arranged on trailing arm main body lower end both sides for a pair,
Have one to hold straight push rod in the lower end of straight push rod connecting seat to install and horizontally disposed straight push rod installation through-hole；One damper is connected
Unit, the damper connection unit is disposed therein an arc linkage section upper end including one and horizontally disposed damper is pacified
Hole is filled, the shock absorber mounting hole is located at close to one end of trailing arm main body；One QS connection unit, the QS
Connection unit is arranged on another arc linkage section lower end including one and horizontally disposed semicircle stabiliser bar installs groove, and this is steady
Fixed pole is installed groove and is located at close to one end of trailing arm main body, and stabiliser bar installs the axis of groove and the axis of shock absorber mounting hole
It is parallel, the axis perpendicular with straight push rod installation through-hole；A lateral stability is connected between the outboard end of the trailing arm
Bar, the two ends of QS are fixed on longeron by vertical connecting rod；
Four pairs of air bags for being separately mounted on air bag connection panel, the upper end of air bag and the bottom of longeron fixed, and lower end is arranged on
On air bag connection panel；
The suspension strut for being arranged on the outboard end of longeron two a pair, the suspension strut includes a suspension strut main body, the suspension
The Y-shaped shape of rack body, in suspension strut main body there is a pair of upper ends from suspension strut main body to extend to suspension strut master
The reinforcement of the lower end of body；One has a longeron connection unit, the longeron connection unit bag in the upper end of suspension strut main body
A longeron connecting seat for being located at suspension strut body top position is included, there is a U-shaped in the upper center position of longeron connecting seat
Have on groove, the longeron connecting seat and connect on several holes that connect one to one with longeron, longeron connecting seat with saddle coupling board
The wall thickness at the place of connecing is less than the wall thickness of longeron connecting seat remainder, and the reduction amount and the thickness one of saddle coupling board of wall thickness
Cause；One has push rod connection unit always in the lower end of suspension strut main body, and the straight push rod connection unit is pointed to including one
The straight push rod connecting seat of suspension strut lower body part position, gap is left between two straight push rod connecting seats, so that outstanding
The lower end of frame rack body has an arc-shaped slot, has one to hold straight push rod on straight push rod connecting seat and installs and horizontally disposed
Straight push rod installation through-hole, is connected between the suspension strut and trailing arm by straight push rod；
Two pairs be separately positioned on suspension strut two ends damper, upper end and the longeron of the damper fixed, and lower end is arranged on
In the shock absorber mounting hole of trailing arm；
The connecting lining plate being arranged in longeron for a pair, the liner plate including one be pointed to the upper liner plate of longeron inwall upper and lower end, under
Liner plate, the upper liner plate, lower lining plate structure are similar, and the up/down liner plate is one by a linkage section being vertically arranged and a level
The laminating section of setting is collectively forming L shape structure, has some connecting holes corresponding with longeron fixing hole on linkage section
A, the upper end or lower end of laminating section laminating longeron inwall；Have one at least one liner plate in upper liner plate and lower liner plate to vertical
The expanding section of the center position extension of beam, the expanding section is located at the junction of crossbeam and longeron, and the length and crossbeam of expanding section
It is corresponding, there are several connecting hole Bs corresponding with crossbeam mounting hole on expanding section.
Further, the V-type pushes away seat group one and has two groups, is symmetrically distributed in the two ends of crossbeam body, and every group of V-type pushes away seat
The V-type that group is symmetrically distributed in beam pipe long axis of body direction two ends by two pushes away seat and collectively formed, and is pushed away in V-type and V is provided with seat pushes away,
The other end that V is pushed away is fixed in vehicle bridge.
Further, reinforcement convex tendon is additionally provided with the inwall of crossbeam body, the reinforcement convex tendon is located in beam pipe body
Pushed away on wall with V-type at the corresponding position of seat, and seat is pushed away with V-type and corresponded；The thickness that the V-type pushes away seat accounts for crossbeam body
The 1/3-1/2 of diameter.
Further, the sealing ring group is collectively formed by the O-ring seal of two and column distribution, while in end cover
The upper annular groove with appearance O-ring seal insertion.
Further, one holds the blind hole that end cover is installed, the depth of the blind hole >=close on longeron adpting flange
One section of thickness of the end-blocking lid positioned at the external side of beam pipe；The side being connected on longeron adpting flange with longeron is additionally provided with convex
Platform, the thickness of the boss and the consistency of thickness of liner plate.
Further, lightening grooves are provided with trailing arm main body, arc linkage section.
Further, the vehicle bridge support panel upper surface is located at the centre position of vehicle bridge fixing hole also with a pair of positioning
Hole.
Further, the upper end of the air bag connection panel also has additional cushion block.
Further, the two ends of suspension strut main body are provided with lightening grooves；The straight push rod connecting seat is in kidney-shaped shape；It is described
The connecting hole that muscle covering is reinforced on longeron connecting seat is blind hole, and remaining hole is through hole.
Further, arc-shaped transition is used between the two ends of the expanding section and upper liner plate or lower liner plate.
The advantage of the invention is that：In the present invention, integrally cast by the way that crossbeam body, crossbeam connector and V-type are pushed away into seat
Make and form, so that the assembling between reducing three, while machining accuracy is also reduced, convenient processing, and using overall casting
The mode of type is caused, the connection processing between part is also just reduced, corresponding sealing property is also just improved；Adopt in addition
The end cover being connected with, which realizes crossbeam body, to be sealed, also for facilitating follow-up japanning, preservative treatment.
Strengthen convex tendon by being set at the inwall of crossbeam body, it is to avoid cause crossbeam body because of the installation that V-type pushes away seat
Inwall herein is thinning and causes crossbeam body structural strength to be affected, it is ensured that the overall structural strength of crossbeam body.
The design of seat is pushed away for V-type, by the way that V-type to be pushed away to the 1/3-1/2 of the thickness control of seat in the diameter of crossbeam body, from
And thickeied V-type and pushed away seat, facilitate follow-up processing and fabricating, it is ensured that structural strength.
For the setting of sealing ring group, end cover and beam pipe are realized by the O-ring seal of two and column distribution
Sealing between body, using the structure of this dual-seal, so as to effectively improve its sealing effectiveness.
Hold the blind hole of end cover by being set on longeron adpting flange, on the basis of ensureing that end cover is installed,
End cover is avoided to protrude outside longeron adpting flange and interfere with the installation between longeron adpting flange and longeron.
And boss is set on longeron adpting flange, so as to be supported to being formed between longeron adpting flange and longeron, keep away
Exempt from because liner plate causes the gap that exists between longeron adpting flange and longeron and has influence on the stabilization of connection.
Crossbeam in the present invention on hollow suspension except making Guan Liang in addition to, while can also be arranged on speed changer portion
Used in part as gas receiver, the fluctuation of air pressure when can be used to compensate shift of transmission so that gearshift is more steady.
It is attached for air bag connection panel with trailing arm main body by a reclinate arc linkage section, so as to drop
Low air bag connects the height of panel, and the setting height(from bottom) of corresponding air bag is also just reduced, and overall center of gravity also just have dropped, structure
Also can more it stablize.
By being provided with lightening grooves on trailing arm main body, arc linkage section, ensureing trailing arm main body and arc linkage section
On the basis of structural strength, trailing arm main body, the weight of arc linkage section can be mitigated, and then alleviate the weight of whole trailing arm,
To realize that the overall lightweight of air suspension provides the foundation.
In the present invention, positioning hole is set up in the upper surface of vehicle bridge support panel, pacified also for the positioning of vehicle bridge is facilitated
Dress.
Cushion block is set for the upper end that air bag connects panel, when the size of air bag is smaller, air bag can be with air bag joint face
Certain gap is left between plate, now this part can be compensated by setting up cushion block between connecting panel in air bag and air bag
Gap, it is ensured that the stabilization of connection.
Suspension strut in the present invention is only needed to for longitudinal beam connected and straight push rod, reduces the negative of suspension strut connection
Load, therefore suspension strut can be done thin, to mitigate the weight of suspension strut, a U-shaped groove is opened in upper end again in addition, further
The weight of whole suspension support is alleviated, meanwhile, the reinforcement extended from up to down is set up on suspension strut, to ensure suspension
The structural strength of support.
For the setting of longeron connecting seat, by the way that the upper end of longeron connecting seat is done into thin, to coordinate suspension strut, saddle to connect
Connection between fishplate bar and longeron, it is to avoid cause to occur after connecting between suspension strut and longeron because of the presence of saddle coupling board
Gap, and have influence on the stabilization of connection.
By reducing Baking soda at the two ends of suspension strut main body, suspension strut overall weight is further mitigated so as to reach
Purpose, the lightweight for follow-up overall air suspension provides basis；And for the design of straight push rod connecting seat, using kidney-shaped
The structure of shape so that the surplus of straight push rod connecting seat is big, facilitates the processing of straight push rod installation through-hole.
In the present invention, it is designed as blind hole by the way that the connecting hole that muscle covers will be reinforced on longeron connecting seat, rather than it is logical
Hole, so that on the basis of connection is ensured, it is to avoid have influence on the structure of reinforcement because processing through hole, it is ensured that integrally-built strong
Degree.
By setting up one at least one in upper liner plate, lower liner plate for the corresponding expanding section of crossbeam length,
Simultaneously the connecting hole corresponding with crossbeam is provided with expanding section, so for various sizes of crossbeam, its when mounted, crossbeam
Upper liner plate is arranged on when size is big, on lower liner plate, size hour wherein side can be arranged on expanding section, and if crossbeam
It is undersized, also expanding section will can be set up on upper and lower liner plate, the liner plate that need not thus process multiple different sizes is carried out more
Change, it is very convenient, it is applied widely.
And the length for expanding section is controlled in the size corresponding with crossbeam, it is to avoid do oversize of expanding section and increase
The weight of liner plate, is that the lightweight of follow-up air suspension provides the foundation.
For between expanding section and upper liner plate, lower liner plate by the way of arc-shaped transition so that expanding section and upper and lower liner plate
Junction structure more stablize, it is to avoid bending.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the schematic diagram of the improved air suspension of the present invention.
Fig. 2 is the schematic diagram of middle cross beam of the present invention.
Fig. 3 is the front view of middle cross beam of the present invention.
Fig. 4 is Fig. 3 A-A sectional views.
Fig. 5 is the side view of middle cross beam of the present invention.
Fig. 6 is the schematic diagram of trailing arm in the present invention.
Fig. 7 is the front view of trailing arm in the present invention.
Fig. 8 is the side view of trailing arm in the present invention.
Fig. 9 is the schematic diagram of suspension strut in the present invention.
Figure 10 is the front view of suspension strut in the present invention.
Figure 11 is the side view of suspension strut in the present invention.
Figure 12 is liner plate in the present invention and crossbeam, the schematic diagram of longeron connection diagram.
Figure 13 is the front view of upper liner plate in the present invention.
Figure 14 is the side view of upper liner plate in the present invention.
Embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
A kind of improved air suspension as shown in Fig. 1-Figure 14, including
A pair of symmetrically arranged longerons 101, are provided with some connecting holes on longeron 101.
One is arranged on the crossbeam 103 between two longerons, and schematic diagram as Figure 2-Figure 5 understands that crossbeam 103 includes
One main body of cross-beam, the main body of cross-beam by a crossbeam body 1 and be symmetricly set on for a pair the two ends of crossbeam body 1 longeron connect
Acting flange 2 is integrally cast, and has V-type to push away a group, crossbeam body while going back integral casting forming on the outer wall of crossbeam body 1
1 is the tubular structure of a both ends open, while having the inner chamber phase with crossbeam body 1 at the two ends of the long axis direction of crossbeam body 1
One air inlet 3 of connection, a gas outlet 4, are additionally provided with reinforcement convex tendon group, in crossbeam body 1 on the inwall of crossbeam body 1
The medium position of bottom is additionally provided with sewage draining exit 6, by the setting of sewage draining exit 6, can facilitate the impurity row in crossbeam body 1
Go out.
V-type pushes away seat group one and has two groups, is symmetrically distributed in the two ends of crossbeam body 1, it is symmetrical by two that every group of V-type pushes away a group
The V-type for being distributed in the long axis direction two ends of crossbeam body 1 pushes away seat 8 and collectively formed, and is pushed away in V-type and is provided with V on seat 8 and pushes away, it is another that V is pushed away
End be fixed in vehicle bridge, V-type push away seat 8 thickness account for crossbeam body 1 diameter 1/3-1/2.The design of seat 8 is pushed away for V-type, is led to
Cross and V-type is pushed away into the 1/3-1/2 of the thickness control of seat 8 in the diameter of crossbeam body 1, so that having thickeied V-type pushes away seat 8, after facilitating
Continuous processing and fabricating, it is ensured that structural strength.
Schematic diagram as shown in Figure 3 is understood, is additionally provided with reinforcement convex tendon 9 in the inwall of crossbeam body 1, is strengthened convex tendon 9
In being pushed away on the inwall of crossbeam body 1 with V-type at the corresponding position of seat 8, and push away seat 8 with V-type and correspond.By in crossbeam body
Set at 1 inwall and strengthen convex tendon 9, it is to avoid caused the inwall of crossbeam body 1 herein thinning because of the installation that V-type pushes away seat 8 and lead
The structural strength of crossbeam body 1 is caused to be affected, it is ensured that the overall structural strength of crossbeam body 1.
The end cover 7 for being arranged on the long axis direction two ends of crossbeam body 1 a pair, the cross section t shape of end cover 7,
And the small one end of the bore of end cover 7 is stretched into the cavity of crossbeam body 1 and is connected by bolt with crossbeam body 1, adopts
The end cover 7 being connected with, which realizes crossbeam body 1, to be sealed, also for facilitating follow-up japanning, preservative treatment,
End cover 7 stretches into the sealing ring that the inwall of laminating crossbeam body 1 is also equipped with one section in the cavity of crossbeam body 1 of outer wall
Group.
Sealing ring group is collectively formed by the O-ring seal of two and column distribution, while having appearance O-shaped on end cover 7
The annular groove of sealing ring insertion.For the setting of sealing ring group, sealing is realized by the O-ring seal of two and column distribution
Sealing between end cap 7 and crossbeam body 1, using the structure of this dual-seal, so as to effectively improve its sealing effectiveness.
Have one to hold the blind hole that end cover 7 is installed, depth >=end cover 7 of the blind hole on longeron adpting flange 2
One section of the thickness positioned at the outside of crossbeam body 1.Hold the blind hole of end cover by being set on longeron adpting flange 2, protecting
On the basis of card end cover 7 is installed, it is to avoid the protrusion longeron of end cover 7 adpting flange 2 is outer and interferes with longeron adpting flange 2
Installation between longeron.
The side being connected on longeron adpting flange 2 with longeron is additionally provided with boss 10, in longeron adpting flange 2 and longeron
Between be additionally provided with the liner plate of connection, the thickness of boss 10 and the consistency of thickness of liner plate.Set convex on longeron adpting flange 2
Platform 10, so as to between longeron adpting flange 2 and longeron formed support, it is to avoid because liner plate cause longeron adpting flange 2 with
The gap that exists between longeron and the stabilization for having influence on connection.
A pair of vehicle bridge 104 installed in the lower end of longeron 101, the two ends of vehicle bridge 104 pass through trailing arm 105 and support fixation, such as scheme
Schematic diagram shown in 6- Fig. 8 understands that trailing arm 105 includes
One trailing arm main body 11, has a vehicle bridge support panel 12 raised up, in vehicle bridge branch in the upper surface of trailing arm main body 11
The vehicle bridge fixing hole 13 of four rectangular shape distributions is provided with support panel 12.
Being located at the centre position of vehicle bridge fixing hole 13 in the upper surface of vehicle bridge support panel 12 also has a pair of positioning holes 22.
Positioning hole 22 is set up in the upper surface of the plate of vehicle bridge supporting surface 12, also for the location and installation for facilitating vehicle bridge.
One is connected to the air bag connection panel 14 at the two ends of trailing arm main body 11, and air bag connection panel 14 is reclinate by one
Arc linkage section 15 is connected with trailing arm main body 11, so that the height of air bag connection panel 14 is not higher than the height of trailing arm main body 11
Degree, the medium position for connecting panel 14 in air bag has a positioning mounting hole 16, and connect panel for air bag leads to trailing arm main body
Cross a reclinate arc linkage section 16 to be attached, so as to reduce the height that air bag connects panel 14, corresponding air bag
Setting height(from bottom) also just reduce, overall center of gravity also just have dropped, and structure also can more be stablized.
The upper end for connecting panel 14 in air bag also has additional cushion block.For the upper end that air bag connects panel 14, cushion block is set,
When the size of air bag is smaller, certain gap is left between air bag meeting and air bag connection panel 14, now can be by air bag
It is connected with air bag between panel 14 and sets up cushion block to compensate the gap of this part, it is ensured that the stabilization of connection, is also compared while installing
Convenience.
One is connected to the straight push rod connection unit of the lower end of trailing arm main body 11, and the straight push rod connection unit is arranged on including a pair
The straight push rod connecting seat 17 of the lower end both sides of trailing arm main body 11, has one to hold straight push rod in the lower end of straight push rod connecting seat 17 and installs simultaneously
Horizontally disposed straight push rod installation through-hole 18.
One damper connection unit, the damper connection unit is disposed therein a upper end of arc linkage section 16 including one
And horizontally disposed shock absorber mounting hole 19, the shock absorber mounting hole 19 is positioned at one end close to trailing arm main body 11.
One QS connection unit, the QS connection unit is arranged on another arc linkage section including one
16 lower ends and horizontally disposed semicircle stabiliser bar installation groove 20, the stabiliser bar are installed groove 20 and are located at close to trailing arm main body 11
One end, be additionally provided with a pair of stabiliser bars peace while being located at stabiliser bar in the lower end of arc top linkage section 16 and installing the two ends of groove 20
Hole is filled, the axis that stabiliser bar installs groove 20 is parallel with the axis of shock absorber mounting hole 19, with straight push rod installation through-hole 18
Axis perpendicular.
Lightening grooves 21 are provided with trailing arm main body 11, arc linkage section 16.By in trailing arm main body 11, arc linkage section
Lightening grooves 21 are provided with 16, on the basis of the structural strength of trailing arm main body 11 and arc linkage section 16 is ensured, can be mitigated
The weight of trailing arm main body 11, arc linkage section 16, and then the weight of whole trailing arm is alleviated, to realize the light of air suspension entirety
Quantization provides the foundation.
A QS 106 is connected between the outboard end of trailing arm 105, the two ends of QS 106 pass through
Vertical connecting rod 107 is fixed on longeron 101.
Four pairs of air bags 108 for being separately mounted on air bag connection panel 14, the upper end of air bag 108 and the bottom of longeron 101
Fixed, lower end is arranged on air bag connection panel 14.
The suspension strut 109 for being arranged on 101 liang of outboard ends of longeron a pair, schematic diagram as Figure 9-Figure 11 is understood, is hanged
Frame support 109 includes
One suspension strut main body 31, the Y-shaped shape of suspension strut main body 31 has a pair from suspension in the main body of suspension strut 31
The upper end of rack body 31 extends to the reinforcement 32 of the lower end of suspension strut main body 31.
Lightening grooves 40 are provided with the two ends of suspension strut main body 31.By being reduced at the two ends of suspension strut main body 31
Baking soda 40, is the lightweight of follow-up overall air suspension so as to reach the purpose for further mitigating suspension strut overall weight
Basis is provided.
There is a longeron connection unit in the upper end of suspension strut main body 31, the longeron connection unit includes one and is located at suspension
The longeron connecting seat 33 of the upper position of rack body 31, has a U-shaped groove 34 in the upper center position of longeron connecting seat 33,
Have on longeron connecting seat 33 on several holes 35 that connect one to one with longeron, longeron connecting seat 33 with saddle coupling board 102
Junction is provided with a groove structure 36, as shown in figure 3, so that the wall thickness of the upper end of longeron connecting seat 33 is less than longeron company
The wall thickness of the lower end of joint chair 33, and the depth and the consistency of thickness of saddle coupling board 102 of groove structure 36；For longeron connecting seat 33
Setting, by the way that the upper end of longeron connecting seat 33 is done into thin, to coordinate between suspension strut, saddle coupling board 102 and longeron 101
Connection, it is to avoid cause because of the presence of saddle coupling board 102 between suspension strut and longeron 101 connect after there is gap, and
Have influence on the stabilization of connection.
The connecting hole that the covering of muscle 32 is reinforced on longeron connecting seat 33 is blind hole, and remaining hole is through hole.By the way that longeron is connected
The connecting hole 35 that the covering of muscle 32 is reinforced on joint chair 33 is designed as blind hole, rather than through hole, so that on the basis of connection is ensured,
Avoid having influence on the structure of reinforcement 32 because processing through hole, it is ensured that integrally-built intensity.
There is push rod connection unit always in the lower end of suspension strut main body 31, the straight push rod connection unit includes a contraposition
In the straight push rod connecting seat 37 of the lower position of suspension strut main body 31, gap is left between two straight push rod connecting seats 37, from
And cause the lower end of suspension strut main body 31 that there is an arc-shaped slot 39, have one to hold straight push rod peace on straight push rod connecting seat 37
Fill and horizontally disposed straight push rod installation through-hole 38.
Straight push rod connecting seat 37 is in kidney-shaped shape.For the design of straight push rod connecting seat 37, using the structure of kidney-shaped shape so that
Straight push rod connecting seat 37 has very big surplus, facilitates the processing of straight push rod installation through-hole 38.
Suspension strut in the present invention is only needed to for longitudinal beam connected and straight push rod, reduces the negative of suspension strut connection
Load, therefore suspension strut can be done thin, to mitigate the weight of suspension strut, a U-shaped groove is opened in upper end again in addition, further
The weight of whole suspension support is alleviated, meanwhile, the reinforcement extended from up to down is set up on suspension strut, to ensure suspension
The structural strength of support.
Connected between suspension strut 109 and trailing arm 105 by straight push rod 110.
Two pairs be separately positioned on the two ends of suspension strut 109 damper 111, the upper end of damper 111 is consolidated with longeron 101
Fixed, lower end is arranged in the shock absorber mounting hole 19 of trailing arm 105.
The connecting lining plate being arranged in longeron 101 for a pair, the use as shown in Figure 12-Figure 14 as figure shows, connecting lining plate
Including
One is pointed to the upper liner plate 41 of the inwall upper and lower end of longeron 101, lower liner plate 42, and upper liner plate 41, the structure of lower liner plate 42 are similar.
Illustrated exemplified by above liner plate 41：
Upper liner plate 41 is collectively forming L shape knot for one by the horizontally disposed laminating section 43 of a linkage section 44 and one being vertically arranged
Structure, has some connecting hole A46s corresponding with longeron 103 fixing hole, the upper end laminating of laminating section 43 on linkage section 44
The upper end of longeron inwall.
There is an expanding section 45 extended to the center position of longeron 10 in the lower end of upper liner plate 41, the expanding section 45 is located at
The junction of crossbeam 103 and longeron 101, and the length of expanding section 45 is corresponding with crossbeam 103, for the length control of expanding section 45
System is in the size corresponding with crossbeam, it is to avoid do oversize of expanding section 45 and weight that increase liner plate, is that follow-up air hangs
The lightweight of frame provides the foundation, and has several connecting hole B47s corresponding with crossbeam 103 mounting hole on expanding section 45.
Arc-shaped transition is used between the two ends of expanding section 45 and upper liner plate 41.For being used between expanding section and upper liner plate 41
The mode of arc-shaped transition so that expanding section and the structure of the junction of upper liner plate 41 are more stablized, it is to avoid bending.
By setting up one at least one in upper liner plate 41, lower liner plate 42 for the corresponding extension of crossbeam length
Section 45, while being provided with the connecting hole corresponding with crossbeam on expanding section 45, so for various sizes of crossbeam, it is being installed
When, when crossbeam size is big on upper liner plate, lower liner plate, size hour wherein side can be arranged on expanding section, Er Qieru
Fruit crossbeam it is undersized, also expanding section will can be set up on upper and lower liner plate, need not thus process the lining of multiple different sizes
Plate is changed, very convenient, applied widely.
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also have
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appended claims and its equivalent thereof.
Claims (10)
1. a kind of improved air suspension, it is characterised in that：Including
A pair of symmetrically arranged longerons, are provided with some connecting holes on longeron；
One be arranged on two longerons between crossbeam, the crossbeam include a main body of cross-beam, the main body of cross-beam by a crossbeam body with
And a pair of longeron adpting flanges for being symmetricly set on crossbeam body two ends are integrally cast, while in the outer wall of crossbeam body
On go back integral casting forming and there is V-type to push away a group, the crossbeam body is the tubular structure of a both ends open, while in crossbeam body
The two ends of long axis direction have an air inlet with the intracavity inter-connection of crossbeam body, a gas outlet, the crossbeam body it is interior
Reinforcement convex tendon group is additionally provided with wall；The end cover for being arranged on beam pipe long axis of body direction two ends a pair, the end cover
Cross section t shape, and the small one end of end cover bore stretched into the cavity of crossbeam body and by bolt and beam pipe
Body is connected, and is stretched into end cover and crossbeam inboard wall of tube body of fitting is also equipped with one section in crossbeam body cavity of outer wall
Sealing ring group；
A pair of vehicle bridge installed in longeron lower end, the two ends of vehicle bridge are supported by trailing arm to be fixed, and the trailing arm includes a trailing arm master
Body, the upper surface of the trailing arm main body has a vehicle bridge support panel raised up, and four are provided with vehicle bridge support panel
The vehicle bridge fixing hole of rectangular shape distribution；One is connected to the air bag connection panel at trailing arm main body two ends, and the air bag connects panel
It is connected by a reclinate arc linkage section with trailing arm main body, so that the height of air bag connection panel is not higher than trailing arm
The height of main body, the medium position for connecting panel in air bag has a positioning mounting hole；One is connected to the straight of trailing arm main body lower end
Push rod connection unit, the straight push rod connection unit includes the straight push rod connecting seat for being arranged on trailing arm main body lower end both sides for a pair,
Have one to hold straight push rod in the lower end of straight push rod connecting seat to install and horizontally disposed straight push rod installation through-hole；One damper is connected
Unit, the damper connection unit is disposed therein an arc linkage section upper end including one and horizontally disposed damper is pacified
Hole is filled, the shock absorber mounting hole is located at close to one end of trailing arm main body；One QS connection unit, the QS
Connection unit is arranged on another arc linkage section lower end including one and horizontally disposed semicircle stabiliser bar installs groove, and this is steady
Fixed pole is installed groove and is located at close to one end of trailing arm main body, and stabiliser bar installs the axis of groove and the axis of shock absorber mounting hole
It is parallel, the axis perpendicular with straight push rod installation through-hole；A lateral stability is connected between the outboard end of the trailing arm
Bar, the two ends of QS are fixed on longeron by vertical connecting rod；
Four pairs of air bags for being separately mounted on air bag connection panel, the upper end of air bag and the bottom of longeron fixed, and lower end is arranged on
On air bag connection panel；
The suspension strut for being arranged on the outboard end of longeron two a pair, the suspension strut includes a suspension strut main body, the suspension
The Y-shaped shape of rack body, in suspension strut main body there is a pair of upper ends from suspension strut main body to extend to suspension strut master
The reinforcement of the lower end of body；One has a longeron connection unit, the longeron connection unit bag in the upper end of suspension strut main body
A longeron connecting seat for being located at suspension strut body top position is included, there is a U-shaped in the upper center position of longeron connecting seat
Have on groove, the longeron connecting seat and connect on several holes that connect one to one with longeron, longeron connecting seat with saddle coupling board
The wall thickness at the place of connecing is less than the wall thickness of longeron connecting seat remainder, and the reduction amount and the thickness one of saddle coupling board of wall thickness
Cause；One has push rod connection unit always in the lower end of suspension strut main body, and the straight push rod connection unit is pointed to including one
The straight push rod connecting seat of suspension strut lower body part position, gap is left between two straight push rod connecting seats, so that outstanding
The lower end of frame rack body has an arc-shaped slot, has one to hold straight push rod on straight push rod connecting seat and installs and horizontally disposed
Straight push rod installation through-hole, is connected between the suspension strut and trailing arm by straight push rod；
Two pairs be separately positioned on suspension strut two ends damper, upper end and the longeron of the damper fixed, and lower end is arranged on
In the shock absorber mounting hole of trailing arm；
The connecting lining plate being arranged in longeron for a pair, the liner plate including one be pointed to the upper liner plate of longeron inwall upper and lower end, under
Liner plate, the upper liner plate, lower lining plate structure are similar, and the up/down liner plate is one by a linkage section being vertically arranged and a level
The laminating section of setting is collectively forming L shape structure, has some connecting holes corresponding with longeron fixing hole on linkage section
A, the upper end or lower end of laminating section laminating longeron inwall；Have one at least one liner plate in upper liner plate and lower liner plate to vertical
The expanding section of the center position extension of beam, the expanding section is located at the junction of crossbeam and longeron, and the length and crossbeam of expanding section
It is corresponding, there are several connecting hole Bs corresponding with crossbeam mounting hole on expanding section.
2. improved air suspension according to claim 1, it is characterised in that：The V-type pushes away seat group one and has two groups, right
Claim the two ends for being distributed in crossbeam body, every group of V-type pushes away a group by two V-types for being symmetrically distributed in beam pipe long axis of body direction two ends
Push away seat to collectively form, pushed away in V-type and V is installed on seat pushed away, the other end that V is pushed away is fixed in vehicle bridge.
3. improved air suspension according to claim 2, it is characterised in that：It is additionally provided with and adds in the inwall of crossbeam body
Strong convex tendon, the reinforcement convex tendon, which is located on crossbeam inboard wall of tube body, to be pushed away with V-type at the corresponding position of seat, and pushes away seat one by one with V-type
Correspondence；The V-type push away seat thickness account for crossbeam body diameter 1/3-1/2.
4. improved air suspension according to claim 2, it is characterised in that：The sealing ring group is by two and column distribution
O-ring seal collectively form, while on end cover have hold O-ring seal insertion annular groove.
5. improved air suspension according to claim 1, it is characterised in that：Have an appearance close on longeron adpting flange
The blind hole that end-blocking lid is installed, depth >=end cover of the blind hole is located at one section of thickness of the external side of beam pipe；Longeron is connected
The side being connected on flange with longeron is additionally provided with boss, the thickness of the boss and the consistency of thickness of liner plate.
6. improved air suspension according to claim 1, it is characterised in that：On trailing arm main body, arc linkage section
It is provided with lightening grooves.
7. improved air suspension according to claim 1, it is characterised in that：The vehicle bridge support panel upper surface is located at
The centre position of vehicle bridge fixing hole also has a pair of positioning holes.
8. improved air suspension according to claim 1, it is characterised in that：The upper end of the air bag connection panel also increases
Provided with cushion block.
9. improved air suspension according to claim 1, it is characterised in that：The two ends of suspension strut main body, which are provided with, to be subtracted
Baking soda；The straight push rod connecting seat is in kidney-shaped shape；The connecting hole that muscle covering is reinforced on the longeron connecting seat is blind hole, remaining
Hole is through hole.
10. improved air suspension according to claim 1, it is characterised in that：The two ends of the expanding section and upper liner plate
Or arc-shaped transition is used between lower liner plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710547932.1A CN107323528B (en) | 2017-07-06 | 2017-07-06 | Improved generation air suspension |
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| CN201710547932.1A CN107323528B (en) | 2017-07-06 | 2017-07-06 | Improved generation air suspension |
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| CN107323528B CN107323528B (en) | 2023-05-09 |
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| CN107571700A (en) * | 2017-09-22 | 2018-01-12 | 江苏汤臣汽车零部件有限公司 | A kind of air suspension H-shaped arm |
| CN109263427A (en) * | 2018-11-13 | 2019-01-25 | 山东德泰机械制造集团有限公司 | A kind of airsuspension system |
| CN110281722A (en) * | 2019-05-09 | 2019-09-27 | 核心驱动科技（金华）有限公司 | A kind of independent suspension system and vehicle |
| CN112937236A (en) * | 2021-02-22 | 2021-06-11 | 三一重型装备有限公司 | Arm frame assembly, oil gas suspension mechanism and engineering vehicle |
| CN113580862A (en) * | 2021-08-16 | 2021-11-02 | 山东亚中车辆股份有限公司 | Shock attenuation running gear |
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| CN113580862A (en) * | 2021-08-16 | 2021-11-02 | 山东亚中车辆股份有限公司 | Shock attenuation running gear |
| CN113580862B (en) * | 2021-08-16 | 2022-04-05 | 山东亚中车辆股份有限公司 | Shock attenuation running gear |
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|---|---|
| CN107323528B (en) | 2023-05-09 |
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