CN110065356A - The independent suspension height-adjusting system and height-regulating method of multi-axle heavy type vehicle - Google Patents
The independent suspension height-adjusting system and height-regulating method of multi-axle heavy type vehicle Download PDFInfo
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- CN110065356A CN110065356A CN201910321132.7A CN201910321132A CN110065356A CN 110065356 A CN110065356 A CN 110065356A CN 201910321132 A CN201910321132 A CN 201910321132A CN 110065356 A CN110065356 A CN 110065356A
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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
-
- 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
- B60G17/02—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
-
- 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
- B60G21/06—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 fluid
- B60G21/067—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 fluid between wheels on different axles on the same side of the vehicle, i.e. the left or the right side
-
- 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
- B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
- B60G2204/81—Interactive suspensions; arrangement affecting more than one suspension unit front and rear unit
-
- 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
- B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
- B60G2204/83—Type of interconnection
- B60G2204/8304—Type of interconnection using a fluid
-
- 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
- B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
- B60G2204/83—Type of interconnection
- B60G2204/8306—Permanent; Continuous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to a kind of independent suspension height-adjusting system of multi-axle heavy type vehicle and method is turned up, independent suspension height-adjusting system includes control valve group and the hydro pneumatic suspension that each vehicle bridge both ends are arranged in, hydro pneumatic suspension includes Top Crossbeam, lower cross arm and hydro-pneumatic spring, the inside and outside end of Top Crossbeam and lower cross arm correspondence is hinged with vehicle frame and wheel group, the upper and lower side of hydro-pneumatic spring and vehicle frame and Top Crossbeam are hinged, bridge group and rear axle group before multiple vehicle bridge are divided into, hydro-pneumatic spring on the left of preceding bridge group is interconnected by the left oil pipe of preceding bridge, hydro-pneumatic spring on the right side of preceding bridge group is interconnected by the right oil pipe of preceding bridge, hydro-pneumatic spring on the left of rear axle group is interconnected by the left oil pipe of rear axle, hydro-pneumatic spring on the right side of rear axle group is interconnected by the right oil pipe of rear axle, the preceding left oil pipe of bridge, the preceding right oil pipe of bridge, the left oil pipe of rear axle and the right oil pipe of rear axle are connect with control valve group respectively, with structure Simply, flexible, adaptable advantage is controlled.Height-regulating method has the advantages that process is simple, logic is reasonable, high reliablity.
Description
Technical field
The present invention relates to a kind of suspensions, and in particular to a kind of independent suspension height-adjusting system and tune for multi-axle heavy type vehicle
High method.
Background technique
As the subsystem of vehicle chassis, suspension system is arranged between vehicle body and wheel, plays buffering road shocks, declines
Subtract body vibrations and is oriented to the important function of wheel hop.For multi-axle heavy type vehicle, because the fully loaded variation of sky is big, traveling road
The features such as condition is complicated proposes requirements at the higher level to the performance of suspension system.To improve driving through property, multi-axle heavy type vehicle is standing
There is height-adjusting system, but existing height-adjusting system is also deposited in actual use that structure is complicated, have a single function, bad adaptability is asked
Topic, is further improved or perfect.
Summary of the invention
The object of the present invention is to provide a kind of independent suspension height-adjusting system of multi-axle heavy type vehicle and method is turned up, system is turned up
System has the advantages that structure is simple, control is flexible, adaptable, can meet vehicle body tune of the multi-axle heavy type vehicle under various working
High demand；Height-regulating method has the advantages that process is simple, logic is reasonable, high reliablity.
To solve the above-mentioned problems in the prior art, the independent suspension of multi-axle heavy type vehicle provided by the invention is turned up
System, multi-axle heavy type vehicle are equipped with multiple vehicle bridge, and independent suspension height-adjusting system includes control valve group and is arranged in each vehicle bridge two
The hydro pneumatic suspension at end, the hydro pneumatic suspension include Top Crossbeam, lower cross arm and hydro-pneumatic spring, the inner end difference of Top Crossbeam and lower cross arm
Hinged with vehicle frame, the outer end of Top Crossbeam and lower cross arm is hinged with wheel group respectively, and the lower end of hydro-pneumatic spring and Top Crossbeam are hinged, oil gas
The upper end of spring and vehicle frame are hinged；Bridge group and rear axle group before the multiple vehicle bridge is divided into, all hydro pneumatic suspensions in preceding bridge group left side
Hydro-pneumatic spring is interconnected by the left oil pipe of preceding bridge, and the hydro-pneumatic spring of all hydro pneumatic suspensions passes through the right oil pipe of preceding bridge on the right side of preceding bridge group
It is interconnected, the hydro-pneumatic spring of all hydro pneumatic suspensions is interconnected by the left oil pipe of rear axle on the left of rear axle group, institute on the right side of rear axle group
There is the hydro-pneumatic spring of hydro pneumatic suspension to be interconnected by the right oil pipe of rear axle, the left oil pipe of the preceding bridge, the right oil pipe of preceding bridge, the left oil of rear axle
Pipe and the right oil pipe of rear axle are connect with control valve group respectively, and control valve group is connect by fuel feed pump and oil return pipe with high pressure fuel source.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein the hydro pneumatic suspension is using oil
Gas separation structure is respectively equipped with accumulator on the left oil pipe of the preceding bridge, the right oil pipe of preceding bridge, the left oil pipe of rear axle and the right oil pipe of rear axle,
Accumulator is filled with nitrogen.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein the left oil pipe of the preceding bridge, preceding
Pressure sensor is respectively equipped on the right oil pipe of bridge, the left oil pipe of rear axle and the right oil pipe of rear axle.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein the Top Crossbeam includes going forward
The inner end of support arm and upper back arm, upper front arm and upper back arm is hinged with vehicle frame respectively, upper front arm and upper back arm it is outer
Sleeve body is equipped with by bearing between end, sleeve body is connect with wheel group.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein the upper front arm and it is upper after
Support arm forms splayed configuration, the first connecting shaft is equipped between upper front arm and upper back arm, the first connecting shaft and hydro-pneumatic spring are hinged.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein before the lower cross arm includes lower
The inner end of support arm and lower back arm, lower front arm and lower back arm is hinged with vehicle frame respectively, lower front arm and lower back arm it is outer
End correspondence is hinged with the two sides of wheel group.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein the lower front arm and it is lower after
Support arm forms splayed configuration, and the second connecting shaft is equipped between lower front arm and lower back arm.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein the lower front arm and it is lower after
It is additionally provided with block between support arm, suspension limiter is equipped between block and vehicle frame.
Further, the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention, wherein the multiple vehicle bridge is equipped with eight
It is a, wherein first four vehicle bridge is preceding bridge group, and rear four vehicle bridge are rear axle group.
A kind of height-regulating method of the independent suspension height-adjusting system of above-mentioned multi-axle heavy type vehicle provided by the invention, including it is following
Step:
One, single-point be turned up when, by the left oil pipe of preceding bridge, the right oil pipe of preceding bridge, the left oil pipe of rear axle or the right oil pipe of rear axle individually to
Corresponding hydro-pneumatic spring oil charging-discharging, until vehicle body reaches the height of needs；
Two, when road running, by the left oil pipe of preceding bridge, the right oil pipe of preceding bridge, the left oil pipe of rear axle and the right oil pipe of rear axle simultaneously to
Corresponding hydro-pneumatic spring oil charging-discharging, until bodywork height reaches fully loaded equipoise；
Three, when railway transportation, by the left oil pipe of preceding bridge, the right oil pipe of preceding bridge, the left oil pipe of rear axle and the right oil pipe of rear axle simultaneously to
Corresponding hydro-pneumatic spring oil charging-discharging, until bodywork height reaches extreme lower position；
The road running refers to operating condition of the vehicle driving on highway, and the railway transportation refers to vehicle parking in train
On the operating condition transported, the fully loaded equipoise refers to the optimum height position of vehicle full load.
The independent suspension height-adjusting system and height-regulating method of multi-axle heavy type vehicle of the present invention compared with prior art, have following
Advantage: multi-axle heavy type vehicle is equipped with multiple vehicle bridge, and independent suspension height-adjusting system includes control valve group and is arranged in each vehicle bridge two
The hydro pneumatic suspension at end, the present invention make Top Crossbeam and lower cross arm by allowing hydro pneumatic suspension that Top Crossbeam, lower cross arm and hydro-pneumatic spring is arranged
Inner end it is hinged with vehicle frame respectively, keep the outer end of Top Crossbeam and lower cross arm hinged with wheel group respectively, make the lower end of hydro-pneumatic spring with
Top Crossbeam is hinged, keeps the upper end of hydro-pneumatic spring and vehicle frame hinged；And bridge group and rear axle group before being divided into multiple vehicle bridge, bridge group before allowing
The hydro-pneumatic spring of all hydro pneumatic suspensions in left side is interconnected by the left oil pipe of preceding bridge, the oil of all hydro pneumatic suspensions in bridge group right side before allowing
Gas spring is interconnected by the right oil pipe of preceding bridge, and the hydro-pneumatic spring of all hydro pneumatic suspensions in rear axle group left side is allowed to pass through the left oil pipe of rear axle
It is interconnected, allows the hydro-pneumatic spring of all hydro pneumatic suspensions in rear axle group right side to be interconnected by the right oil pipe of rear axle, and keep preceding bridge left
Oil pipe, the right oil pipe of preceding bridge, the left oil pipe of rear axle and the right oil pipe of rear axle are connect with control valve group respectively, and control valve group is made to pass through fuel feed pump
It is connect with oil return pipe with high pressure fuel source.Thus the multi-axle heavy type vehicle that a kind of structure is simple, control is flexible, adaptable is just constituted
Independent suspension height-adjusting system.The present invention is interconnected by all hydro-pneumatic springs before allowing on the left of bridge group, and bridge group is right before allowing
All hydro-pneumatic springs of side are interconnected, and all hydro-pneumatic springs on the left of rear axle group is allowed to be interconnected, and allow institute on the right side of rear axle group
There is hydro-pneumatic spring to be interconnected, is formed four-point supporting structure, and each supporting point oil gas bullet is individually controlled by control valve group
The oil charging-discharging of spring or the oil charging-discharging for controlling four supporting point hydro-pneumatic springs simultaneously, can be realized the skill that single-point is turned up and is integrally turned up
Art purpose has the characteristics that structure is simple, control is flexible, it is convenient to be turned up.This structure also acts equalizing type of suspension effect simultaneously,
Keep each bridge load more balanced, and can avoid vehicle in single bridge overload or the case where wheel hanging when driving on severe road surface；And
When single suspension is impacted, and load can be assigned to the other hydro-pneumatic springs communicated therewith, reduce and transmitted by road surface
To the shock loading of vehicle frame, effectiveness in vibration suppression is enhanced.The independent suspension height-adjusting system of multi-axle heavy type vehicle provided by the invention
Height-regulating method has the advantages that process is simple, logic is reasonable, high reliablity.
With reference to the accompanying drawing shown specific embodiment to the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention and
Height-regulating method is described in further detail.
Detailed description of the invention
Fig. 1 is the hydraulic schematic diagram of the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention；
Fig. 2 is the schematic diagram of hydro pneumatic suspension in the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention.
Specific embodiment
Firstly the need of explanation, the nouns of locality such as heretofore described up, down, left, right, before and after only with reference to the accompanying drawings into
Capable description, in order to understand, not to technical solution of the present invention and be claimed range progress limitation.
The specific embodiment of the independent suspension height-adjusting system of multi-axle heavy type vehicle of the present invention as depicted in figs. 1 and 2, multiaxis
Heavy vehicle is equipped with multiple vehicle bridge, and independent suspension height-adjusting system includes control valve group 1 and the oil gas that each vehicle bridge both ends are arranged in
Suspension 2.Allow hydro pneumatic suspension 2 that Top Crossbeam 21, lower cross arm 22 and hydro-pneumatic spring 23 are set.Make the inner end of Top Crossbeam 21 and lower cross arm 22
It is hinged with vehicle frame 101 respectively, keep the outer end of Top Crossbeam 21 and lower cross arm 22 hinged with wheel group 102 respectively, makes hydro-pneumatic spring 23
Lower end and Top Crossbeam 21 are hinged, keep the upper end of hydro-pneumatic spring 23 and vehicle frame hinged.Bridge group and rear axle group before allowing multiple vehicle bridge to be divided into,
The hydro-pneumatic spring 23 of all hydro pneumatic suspensions is interconnected by the left oil pipe 24 of preceding bridge on the left of bridge group before making, all on the right side of bridge group before making
The hydro-pneumatic spring 23 of hydro pneumatic suspension is interconnected by the right oil pipe 25 of preceding bridge, makes the oil gas bullet of all hydro pneumatic suspensions on the left of rear axle group
Spring 23 is interconnected by the left oil pipe 26 of rear axle, and the hydro-pneumatic spring 23 of all hydro pneumatic suspensions on the right side of rear axle group is made to pass through the right oil of rear axle
Pipe 27 is interconnected, and before making the left oil pipe 24 of bridge, the right oil pipe 25 of preceding bridge, the left oil pipe 26 of rear axle and the right oil pipe 27 of rear axle respectively with control
Valve group 1 processed connects, and connect control valve group 1 with high pressure fuel source by fuel feed pump and oil return pipe.
The multi-axle heavy type vehicle for just constituting that a kind of structure is simple, control is flexible, adaptable is set through the above structure
Independent suspension height-adjusting system.The present invention is interconnected by all hydro-pneumatic springs 23 before allowing on the left of bridge group, and bridge group is right before allowing
All hydro-pneumatic springs 23 of side are interconnected, and all hydro-pneumatic springs 23 on the left of rear axle group is allowed to be interconnected, and allow on the right side of rear axle group
All hydro-pneumatic springs 23 be interconnected, be formed four-point supporting structure, and each supporting point is individually controlled by control valve group 1
The oil charging-discharging of hydro-pneumatic spring or the oil charging-discharging for controlling four supporting point hydro-pneumatic springs simultaneously can be realized single-point and be turned up and whole tune
High technical purpose has the characteristics that structure is simple, control is flexible, it is convenient to be turned up.It is outstanding to also act balance for this structure simultaneously
Frame effect, keeps each bridge load more balanced, and can avoid vehicle single bridge overload or wheel hanging when driving on severe road surface
Situation；And when single suspension is impacted, and load can be assigned to the other hydro-pneumatic springs communicated therewith, it reduces by road
Face is transferred to the shock loading of vehicle frame, enhances effectiveness in vibration suppression.
As prioritization scheme, present embodiment makes hydro pneumatic suspension use gas oil separation structure, and in the left oil of preceding bridge
Be respectively provided with accumulator 28 on the right oil pipe 25 of pipe 24, preceding bridge, the left oil pipe 26 of rear axle and the right oil pipe 27 of rear axle, accumulator 28 filled with
Nitrogen.For this structure setting during wheel hop, compression and extension by nitrogen in accumulator 28 can be hydro-pneumatic spring
Nonlinear elastic force is provided, when wheel slip a line journey it is smaller when, the rigidity of hydro-pneumatic spring is smaller, and vehicle can be made to obtain good traveling
Ride comfort；When wheel slip a line journey it is larger when, the rigidity of hydro-pneumatic spring increased dramatically, it is ensured that the driving safety of vehicle under bad working environments
Property.For the oil circuit pressure convenient for detecting each support point, present embodiment is in the left oil pipe 24 of preceding bridge, the right oil pipe 25 of preceding bridge, rear axle
Pressure sensor 29 is respectively provided on left oil pipe 26 and the right oil pipe 27 of rear axle.
As specific embodiment, it includes upper front arm 211 and upper back arm 212 that the present invention, which allows Top Crossbeam 21 to use,
Structure type has carried out the inner end of front arm 211 and upper back arm 212 with vehicle frame 101 hingedly respectively, and in upper front arm
Sleeve body 213 is mounted with by bearing between 211 and the outer end of upper back arm 212, carries out sleeve body 213 and wheel group 102
Connection.The Top Crossbeam 21 of this structure has the advantages that structure is simple, adaptable.Meanwhile present embodiment makes to go forward
Support arm 211 and upper back arm 212 collectively form splayed configuration structure, and are arranged between upper front arm 211 and upper back arm 212
First connecting shaft 214 has carried out the first connecting shaft 214 hingedly with hydro-pneumatic spring 23.This setting is guaranteeing structural strength
On the basis of bearing capacity, the volume and occupied space of Top Crossbeam 21 are reduced.
Similarly, present embodiment allows lower cross arm 22 to use the structure including lower front arm 221 and lower back arm 222
Form makes the inner end of lower front arm 221 and lower back arm 222 carry out hingedly, making lower 221 He of front arm respectively with vehicle frame 101
The corresponding two sides with wheel group 102 in the outer end of lower back arm 222 have carried out hingedly.And make 222 groups of lower front arm 221 and lower back arm
Make to form splayed configuration structure, and is provided with the second connecting shaft 223 between lower front arm 221 and lower back arm 222.This knot
The lower cross arm 22 of structure reduces volume and occupied space on the basis of guaranteeing structural strength and bearing capacity.In addition, this is specific
Embodiment is provided with block (not shown) also between lower front arm 221 and lower back arm 222, and in block and vehicle frame
Between be provided with suspension limiter, with to slip a line on wheel Cheng Jinhang limitation, guarantee the driving safety of vehicle.
It should be noted that the present invention makes multiple vehicle bridge be provided with eight, and first four vehicle bridge is used as preceding bridge in attached drawing
Group, four vehicle bridge are as rear axle group by after, in order to for example, but it is not limited to this.
Based on same design, the present invention also provides the height-regulating sides of the independent suspension height-adjusting system of above-mentioned multi-axle heavy type vehicle
Method, specifically includes the following steps:
One, when single-point is turned up, pass through the left oil pipe 24 of preceding bridge, the right oil pipe 25 of preceding bridge, the left oil pipe 26 of rear axle or the right oil pipe of rear axle
27 individually to corresponding 23 oil charging-discharging of hydro-pneumatic spring, until vehicle body reaches the height of needs.
Two, when road running, pass through the left oil pipe 24 of preceding bridge, the right oil pipe 25 of preceding bridge, the left oil pipe 26 of rear axle and the right oil pipe of rear axle
27 simultaneously to corresponding 23 oil charging-discharging of hydro-pneumatic spring, until bodywork height reaches fully loaded equipoise.
Three, when railway transportation, pass through the left oil pipe 24 of preceding bridge, the right oil pipe 25 of preceding bridge, the left oil pipe 26 of rear axle and the right oil pipe of rear axle
27 simultaneously to corresponding 23 oil charging-discharging of hydro-pneumatic spring, until bodywork height reaches extreme lower position.
Above-mentioned road running refers to operating condition of the vehicle driving on highway, and above-mentioned railway transportation refers to vehicle parking in train
On the operating condition transported, above-mentioned fully loaded equipoise refers to the optimum height position of vehicle full load.
The present invention meets the height-regulating demand of multi-axle heavy type vehicle difference operating condition by above-mentioned height-regulating method, and has process
Simply, logic rationally, high reliablity the advantages of.
Above embodiments are only the descriptions carried out to the preferred embodiment of the present invention, and model not is claimed to the present invention
It encloses and is defined, without departing from the design concept of the invention, the technical solution of those skilled in the art according to the present invention
The various modifications made, should fall within the scope of protection determined by the claims of the present invention.
Claims (10)
1. the independent suspension height-adjusting system of multi-axle heavy type vehicle, the multi-axle heavy type vehicle is equipped with multiple vehicle bridge, which is characterized in that
The independent suspension height-adjusting system includes control valve group (1) and the hydro pneumatic suspension (2) that each vehicle bridge both ends are arranged in, the oil gas
Suspension (2) includes Top Crossbeam (21), lower cross arm (22) and hydro-pneumatic spring (23), the inner end point of Top Crossbeam (21) and lower cross arm (22)
Not hinged with vehicle frame, the outer end of Top Crossbeam (21) and lower cross arm (22) is hinged with wheel group respectively, the lower end of hydro-pneumatic spring (23) with
Hingedly, the upper end of hydro-pneumatic spring (23) and vehicle frame are hinged for Top Crossbeam (21)；Bridge group and rear axle group, preceding before the multiple vehicle bridge is divided into
The hydro-pneumatic spring (23) of all hydro pneumatic suspensions is interconnected by the left oil pipe of preceding bridge (24) on the left of bridge group, all oil on the right side of preceding bridge group
The hydro-pneumatic spring (23) of gas suspension is interconnected by the right oil pipe of preceding bridge (25), the oil gas bullet of all hydro pneumatic suspensions on the left of rear axle group
Spring (23) is interconnected by the left oil pipe of rear axle (26), and the hydro-pneumatic spring (23) of all hydro pneumatic suspensions passes through rear axle on the right side of rear axle group
Right oil pipe (27) is interconnected, the preceding left oil pipe of bridge (24), the right oil pipe of preceding bridge (25), the left oil pipe of rear axle (26) and the right oil of rear axle
Pipe (27) is connect with control valve group (1) respectively, and control valve group (1) is connect by fuel feed pump and oil return pipe with high pressure fuel source.
2. the independent suspension height-adjusting system of multi-axle heavy type vehicle according to claim 1, which is characterized in that the oil gas hanging
Frame uses gas oil separation structure, the preceding left oil pipe of bridge (24), the right oil pipe of preceding bridge (25), the left oil pipe of rear axle (26) and the right oil of rear axle
It is respectively equipped with accumulator (28) on pipe (27), accumulator (28) is filled with nitrogen.
3. the independent suspension height-adjusting system of multi-axle heavy type vehicle according to claim 2, which is characterized in that the preceding bridge is left
Pressure sensor is respectively equipped on oil pipe (24), the right oil pipe of preceding bridge (25), the left oil pipe of rear axle (26) and the right oil pipe of rear axle (27)
(29)。
4. the independent suspension guiding mechanism of heavy vehicle according to claim 3, which is characterized in that the Top Crossbeam (21)
Including upper front arm (211) and upper back arm (212), the inner end of upper front arm (211) and upper back arm (212) respectively with vehicle frame
Hingedly, sleeve body (213), sleeve body are equipped with by bearing between upper front arm (211) and the outer end of upper back arm (212)
(213) it is connect with wheel group.
5. the independent suspension guiding mechanism of heavy vehicle according to claim 4, which is characterized in that the upper front arm
(211) and upper back arm (212) forms splayed configuration, and the first connecting shaft is equipped between upper front arm (211) and upper back arm (212)
(214), the first connecting shaft (214) and hydro-pneumatic spring (23) are hinged.
6. the independent suspension guiding mechanism of heavy vehicle according to claim 3, which is characterized in that the lower cross arm (22)
Including lower front arm (221) and lower back arm (222), the inner end of lower front arm (221) and lower back arm (222) respectively with vehicle frame
Hingedly, the outer end of lower front arm (221) and lower back arm (222) correspondence is hinged with the two sides of wheel group.
7. the independent suspension guiding mechanism of heavy vehicle according to claim 6, which is characterized in that the lower front arm
(221) and lower back arm (222) forms splayed configuration, and the second connecting shaft is equipped between lower front arm (221) and lower back arm (222)
(223)。
8. the independent suspension guiding mechanism of heavy vehicle according to claim 7, which is characterized in that the lower front arm
(221) it is additionally provided with block between lower back arm (222), suspension limiter is equipped between block and vehicle frame.
9. the independent suspension guiding mechanism of heavy vehicle according to claim 1, which is characterized in that the multiple vehicle bridge is set
There are eight, wherein first four vehicle bridge is preceding bridge group, and rear four vehicle bridge are rear axle group.
10. the height-regulating method of the independent suspension height-adjusting system of multi-axle heavy type vehicle described in claim 3, which is characterized in that including
Following steps:
One, when single-point is turned up, pass through the left oil pipe of preceding bridge (24), the right oil pipe of preceding bridge (25), the left oil pipe of rear axle (26) or the right oil of rear axle
(27) are managed individually to corresponding hydro-pneumatic spring (23) oil charging-discharging, until vehicle body reaches the height of needs；
Two, when road running, pass through the left oil pipe of preceding bridge (24), the right oil pipe of preceding bridge (25), the left oil pipe of rear axle (26) and the right oil of rear axle
(27) are managed simultaneously to corresponding hydro-pneumatic spring (23) oil charging-discharging, until bodywork height reaches fully loaded equipoise；
Three, when railway transportation, pass through the left oil pipe of preceding bridge (24), the right oil pipe of preceding bridge (25), the left oil pipe of rear axle (26) and the right oil of rear axle
(27) are managed simultaneously to corresponding hydro-pneumatic spring (23) oil charging-discharging, until bodywork height reaches extreme lower position；
The road running refers to operating condition of the vehicle driving on highway, the railway transportation refer to vehicle parking aboard into
The operating condition of row transport, the fully loaded equipoise refers to the optimum height position of vehicle full load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321132.7A CN110065356A (en) | 2019-04-19 | 2019-04-19 | The independent suspension height-adjusting system and height-regulating method of multi-axle heavy type vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321132.7A CN110065356A (en) | 2019-04-19 | 2019-04-19 | The independent suspension height-adjusting system and height-regulating method of multi-axle heavy type vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN110065356A true CN110065356A (en) | 2019-07-30 |
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ID=67368245
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|---|---|---|---|
| CN201910321132.7A Pending CN110065356A (en) | 2019-04-19 | 2019-04-19 | The independent suspension height-adjusting system and height-regulating method of multi-axle heavy type vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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