CN209008328U - A kind of commercial vehicle promotion axis suspension system - Google Patents
A kind of commercial vehicle promotion axis suspension system Download PDFInfo
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- CN209008328U CN209008328U CN201821423378.2U CN201821423378U CN209008328U CN 209008328 U CN209008328 U CN 209008328U CN 201821423378 U CN201821423378 U CN 201821423378U CN 209008328 U CN209008328 U CN 209008328U
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- air bag
- axis
- bracket assembly
- leading arm
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Abstract
The utility model is intended to provide a kind of promotion axis suspension system that suitable commercial vehicle uses, the suspension is used to match the servo axis of unpowered input, the vehicle for assembling the suspension system must be provided with the suspension system of other non-promotions, such non-suspension that promoted is typically equipped with the matching drive axle with power input at this time, before the suspension both can be disposed at drive axle, after also can be disposed at drive axle.Including air bag bearing system (1), guidance system, airbag lift system (2) and vibration insulating system (3), system above is arranged symmetrically both with respect to vehicle frame longitudinal center plane.The suspension system has many advantages, such as larger lift stroke, flexible arrangement, structure simple, high reliablity, convenient for safeguarding, and promote axis arrangement is not influenced by transmission shaft.
Description
Technical field
The utility model relates to a kind of automobile-used promotion axis suspension system of commercial vehicle, the suspension system and unpowered input with
Moving axis is used cooperatively, and the vehicle for assembling the suspension system must also equip other non-promotion suspension systems, such as plate spring suspension brackets, air
Spring suspension etc., these non-promotion suspension systems are often equipped with drive axle.
Background technique
Market segment in commercial vehicle field, due to source of goods diversification or the particularity of the source of goods, so that part commercial vehicle goes out
Operating condition is runed in existing unloaded or underload, if investment tandem axle vehicle operation, fuel economy is poor when being bound to cause unloaded or underload；
And if putting into the operation of single drive axle vehicle, and vehicle overload when overloaded will be caused.In this context, single drive axle is matched to have and be promoted
The vehicle of function servo axis is come into being, and unloaded or underload operating condition rises servo axis, reduces tire wear and oil consumption；Fully loaded work
The landing carrying of condition servo axis, guarantees that heavy haul transport bearing capacity meets laws and regulations requirement.
It is limited by transmission shaft arrangement, current most of servo-actuated axle suspensions promote form after can only using, due to saddle one
As after the second axis, so influenced when using rear lift structure by cantilever girder moment, axle load can concentrations exist
Drive axle causes security risk to cause driving load per axle excessive.On the other hand the axle load of steeraxle can be also caused to reduce,
Bridge adhesive force can reduce before causing, and influence steering behaviour to a certain extent, nose unstability even occur for long container commercial vehicle
Phenomenon, while existing lift bridge hoisting depth is smaller, makes a big impact to automobile passability.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of commercial vehicle promotion axis suspension system, which is characterized in that including gas
Capsule bearing system (1), guidance system, airbag lift system (2) and vibration insulating system (3), system above is both with respect to vehicle frame longitudinal direction
Median plane is arranged symmetrically, wherein
The air bag bearing system (1) includes two groups of air bag bogeys being arranged symmetrically along vehicle frame longitudinal center plane, often
Group air bag bogey includes carrying air bag upper bracket assembly (7), carrying air bag assembly (8), carrying air bag lower bolster assembly
(9), leading arm (6) and leading arm bracket assembly (5), wherein carrying air bag upper bracket assembly (7), carrying air bag assembly (8), holding
Carrier gas capsule lower bolster assembly (9) is from top to bottom successively connected, carrying air bag lower bolster assembly (9) again with the shock mitigation system (3)
Included lower support of shock absorber assembly (10) is from top to bottom connected, and carrying air bag upper bracket assembly (7) passes through bolt and vehicle frame
Stringer side is connected, and the servo axis (4) of carrying air bag lower bolster (9) and vehicle is connected, and leading arm bracket assembly (5) top is connected
In vehicle frame, one end axis of lower part and leading arm (6) connects, and the other end of leading arm (6) is fixed on the servo axis (4) of vehicle；
The airbag lift system (2) includes two groups of airbag lift devices being arranged symmetrically along vehicle frame longitudinal center plane, often
Group airbag lift device includes lifting bracket assembly (13) and promotes air bag assembly (12), wherein lifting bracket assembly (13) one end
It is connected with the guiding arm support (5), to be fixed on vehicle frame, the other end and promotion air bag assembly by being oriented to arm support (5)
(12) lower part is connected, and the lifting bracket (4b) for promoting air bag assembly (12) top and the servo axis (4) is connected；
The vibration insulating system (3) includes two groups of symmetrical damping devices, and every group of damping device includes that damper upper bracket is total
At (14), damper (15) and lower support of shock absorber assembly (10), wherein it is vertical to be fixed on vehicle frame for damper upper bracket assembly (14)
Beam sides, lower support of shock absorber assembly (10) are fixed on the servo axis (4), and damper (10) both ends pass through pin shaft respectively and subtract
It shakes device upper bracket assembly (14) and lower support of shock absorber assembly (10) connects；
The carrying air bag assembly (8) is internally provided with the first limited block, for carrying out upper limit to entire suspension system,
The promotion air bag assembly (12) is internally provided with the second limited block, and second limited block and the damper (15) are jointly to whole
A suspension system carries out lower limit.
Preferably, carrying air bag lower bolster (9) and lower support of shock absorber assembly (10) are solid by bolt and positioning finger setting
Even；One end that leading arm (6) is connected with servo axis (4) is that pad is pressed in lower support of shock absorber assembly (10) and servo axis (4) is wrapped
Between the hold-down support (4a) contained, and pass through U bolt (11) and the first bolt (10a) and the second bolt (6b) for vibration damping
Device lower bracket assembly (10), leading arm (6) and hold-down support (4a) three are connected.
Preferably, leading arm (6) is connect with leading arm bracket assembly (5) by rubber shaft bearing (6a)
Preferably, the central siphon of the servo axis (4) uses big sunk type bridge tube structure.
The beneficial effects of the utility model are: providing a kind of automobile-used promotion axis suspension system structure of commercialization, the structure energy
It is enough to promote servo axis in automobile zero load or underload, to guarantee the ground attachment condition of rear driving axle, improve automobile combustion
Oily economy and dynamic property reduce tire wear to reduce customer using cost.When carload lot is more than a threshold value,
Suspension system landing servo axis, servo axis can share the fractional load of drive axle at this time, to promote whole bearing capability, have
Effect improves nose unstable phenomenon caused by accelerator and bumpy road, while can effectively avoid occurring in vehicle traveling process
Drive axle adhesive force Loss, and then promote vehicle dynamic quality, economy and driving safety.
It is arranged symmetrically since lifting system uses, and servo axis uses big sinkage type structure, therefore the servo axis is promoted and hanged
The arrangement of frame system is not influenced by transmission shaft, and arrangement is relatively flexible, and suspension use is promoted after acting not only as can also
To be used as middle promotion suspension.
Since the servo axis is promoted, suspension arrangement flexibility is high, can effectively ensure that the reasonability of each bridge axle lotus distribution, because
This can be effectively reduced front axle unstability risk, and drive axle is avoided to overload, and improve vehicle vehicle goods gross weight.
It is higher that the servo axis promotes suspension system hoisting depth, therefore can effectively improve automobile passability；
The caging system is by carrying air bag, damper and promotes air bag three parts and constitutes, using multiple limit mode,
With limit high reliability.
Detailed description of the invention
Fig. 1 is the axonometric drawing that the utility model promotes axis suspension system；
Fig. 2 is the axonometric drawing for the air bag bearing system that the utility model is promoted in axis suspension system；
Fig. 3 is the airbag lift device and its connection knot for the airbag lift system that the utility model is promoted in axis suspension system
Structure schematic diagram；
Fig. 4 is one group of damping device structural representation that the utility model promotes that the vibration insulating system in axis suspension system includes
Figure；
Fig. 5 is the structural schematic diagram for the servo axis that the utility model promotes axis suspension system connection；
Fig. 6 be the leading arm in the utility model in air bag bearing system, the lower support of shock absorber assembly in damping device,
And the cross-sectional view of servo-actuated Axile connection structure；
Fig. 7 is installation diagram of the utility model in vehicle the second shaft portion position.
Specific embodiment
The promotion axis suspension system of the utility model is described further with reference to the accompanying drawing.
Referring to figs. 1 to Fig. 5 and Fig. 7, a kind of commercial vehicle promotion axis suspension system provided by the utility model, including air bag are held
Loading system 1, guidance system, airbag lift system 2 and vibration insulating system 3, system above is symmetrical both with respect to vehicle frame longitudinal center plane
Arrangement.
The air bag bearing system (1) includes two groups of air bag bogeys being arranged symmetrically along vehicle frame longitudinal center plane, often
Group air bag bogey includes carrying air bag upper bracket assembly (7), carrying air bag assembly (8), carrying air bag lower bolster assembly
(9), leading arm (6) and leading arm bracket assembly (5), wherein carrying air bag upper bracket assembly (7), carrying air bag assembly (8), holding
Carrier gas capsule lower bolster assembly (9) is from top to bottom successively connected, carrying air bag lower bolster assembly (9) again with the shock mitigation system (3)
Included lower support of shock absorber assembly (10) is from top to bottom connected, and carrying air bag upper bracket assembly (7) passes through bolt and vehicle frame
Stringer side is connected, and the servo axis (4) of carrying air bag lower bolster (9) and vehicle is connected, and leading arm bracket assembly (5) top is connected
In vehicle frame, one end axis of lower part and leading arm (6) connects, and the other end of leading arm (6) is fixed on the servo axis (4) of vehicle.
The airbag lift system 2 includes two groups of airbag lift devices being arranged symmetrically along vehicle frame longitudinal center plane, and every group
Airbag lift device includes lifting bracket assembly 13 and promotes air bag assembly 12, and wherein 13 one end of lifting bracket assembly is led with described
It is connected to arm support 5, to be fixed on vehicle frame by being oriented to arm support 5, the other end and promotion 12 lower part of air bag assembly are connected, mention
The lifting bracket 4b for rising 12 top of air bag assembly and the servo axis 4 is connected.
The vibration insulating system 3 includes two groups of symmetrical damping devices, and every group of damping device includes damper upper bracket assembly
14, damper 15 and lower support of shock absorber assembly 10, wherein damper upper bracket assembly 14 is fixed on longitudinal beam side, vibration damping
Device lower bracket assembly 10 is fixed on the servo axis 4, and 10 both ends of damper pass through pin shaft and damper upper bracket assembly 14 respectively
It is connected with lower support of shock absorber assembly 10.
The carrying air bag assembly 8 is internally provided with the first limited block, for carrying out upper limit, institute to entire suspension system
It states promotion air bag assembly 12 and is internally provided with the second limited block, second limited block and the damper 15 are jointly to entire suspension
System carries out lower limit.
In a preferred embodiment, carrying air bag lower bolster (9) and lower support of shock absorber assembly (10) by bolt and
Finger setting is positioned to be connected；One end that leading arm (6) and servo axis (4) are connected be pad be pressed in lower support of shock absorber assembly (10) and with
Between the hold-down support (4a) that moving axis (4) is included, and pass through U bolt (11) and the first bolt (10a) and the second spiral shell
Lower support of shock absorber assembly (10), leading arm (6) and hold-down support (4a) three are connected by bolt (6b).
Referring to figs. 2 and 5, the air bag bearing system embodiment which is included are as follows: vehicle frame transmits vertical
Load is transferred to leading arm 6, then passes through damper by carrying air bag upper bracket assembly 7, carrying air bag 8, carrying air bag backing plate 9
Lower bracket assembly 10, U bolt 11 pass to servo axis 4.Leading arm bracket assembly 5 is solid by bolt and longitudinal beam side
Even, leading arm 6 is connect with leading arm bracket assembly 5 by the rubber shaft bearing 6a of special designing, can play the role of laterally steering,
Therefore the lateral thrust rod structure of traditional suspension is eliminated.
With reference to Fig. 3 and Fig. 6, airbag lift system embodiment which is included are as follows: airbag lift system packet
Two groups of lifting devices being arranged symmetrically are included, every group of lifting device includes a lifting bracket assembly 13 and a promotion air bag assembly
12.Wherein promote lower bracket assembly 13 and be fixed on vehicle frame by being oriented to arm support 5, promoted air bag assembly 12 by bolt respectively with
It promotes lower bracket 13 and servo axis lifting bracket 4b is connected.
With reference to Fig. 4, Fig. 5 and Fig. 6, vibration insulating system embodiment which is included are as follows: vibration insulating system includes two
Group damping device 3, every group of damping device include under 14, dampers 15 of a damper upper bracket assembly and a damper
Bracket assembly 16, wherein damper upper bracket assembly 14 is fixed on the side of longitudinal beam, lower support of shock absorber by bolt 14a
Assembly 10 is fixed on servo axis 4 by air bag bearing system.15 both ends of damper pass through pin shaft 16,17 respectively and prop up on damper
Frame assembly 14 and lower bracket assembly 10 connect.
Referring to figs. 2 and 6, the guidance system of the suspension system includes leading arm 6 and leading arm bracket assembly 5, leading arm
5 top of bracket assembly is fixed on vehicle frame, one end axis company of lower part and leading arm 6, and the other end pad of leading arm 6 is pressed under damper
Between bracket assembly 10 and servo axis 4, and, guiding fixed by the servo axis 4 of U-bolts 11 and bolt 10a and 6b and vehicle
Arm 6 not only provides longitudinally guiding, also passes through the rubber shaft bearing 6a of special designing, realizes laterally steering.
With reference to Fig. 5 and Fig. 6, servo axis embodiment which is included are as follows: 4 central siphon of servo axis uses open circles
Pipe profile is welded with hold-down support 4a and lifting bracket 4b on central siphon, and it is logical that lifting bracket 4b and lifting system promote air bag 12
It crosses bolt to be connected, leading arm 6 is passed through the positioning pin that is integrated on leading arm by U bolt 11 by lower support of shock absorber assembly 10
It is connected with servo axis hold-down support 4a, then air bag lower bolster by lower support of shock absorber assembly and is carried by bolt and positioning pin 9b
It is connected.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, caging system embodiment which is included are as follows: suspension limit
System is made of 8 inside limited block of carrying air bag assembly, promotion 12 inside limited block of air bag assembly and 15 three parts of damper,
Upper limit provides for carrying air bag limited block, and lower limit is provided jointly by damper and promotion air bag limited block.
The promotion of this suspension system falls servo-actuated s function realization process are as follows: when servo axis 4 needs to be promoted, carries air bag
Assembly 8 is deflated, and is promoted air bag assembly 12 and is inflated, and the height for promoting air bag assembly 12, which increases, drives servo axis 4 to rise, and works as servo axis
The limited block carried in air bag when rising to certain altitude is contacted with carrying air bag upper cover plate, and servo axis 4 reaches dominant bit at this time
It sets；The movement and lifting process that servo axis 4 is fallen deflate on the contrary, promoting air bag assembly 12, carry the inflation of air bag assembly 8, directly
It is fallen to servo axis 4 and carries corresponding design load；The extreme position that servo axis 4 is promoted and fallen can be by caging system reality
It is existing.
The realization that servo axis 4 falls rear normal bearing function then needs to rely on the control system for being exclusively used in air suspension, such as electricity
Control system and valve control system etc., the inflation/deflation for carrying air bag assembly 8 under this state operate generally by height sensor or altitude valve
Perception determines.
Servo axis while providing certain brake force for realizing the bearing function of the promotion axle suspension, the promotion axle suspension
Frame system can match disc type brake and drum brake servo axis simultaneously.Due to using therefore such promotion of big sunk type bridge tube structure
Axle suspension lift stroke is larger, and its arrangement influenced by transmission shaft it is smaller.
The air bag bearing system, spring carried mass is only undertaken by carrying air bag assembly, and leading arm only play the guiding role.
Promotion air bag in the airbag lift system is symmetrically arranged in two sides, promotes air bag upper cover plate and passes through spiral shell
Bolt and servo axis lift arm are connected, and promote air bag lower cover plate and are connected by bolt with lower bracket is promoted, and promote lower bracket and pass through spiral shell
Bolt and guiding arm support are connected, and since the servo axis central siphon uses big sunk type bridge tube structure, and promote air bag and are arranged in two
Side, therefore the suspension lift stroke is big, flexible arrangement degree is high.
The servo axis central siphon uses hollow circular-tube profile, while using big sinkage type structure, has light weight, arrangement spirit
The advantages that living, while hold-down support and lifting bracket are welded on central siphon, U bolt directly passes through central siphon fixation balloon carrying system
System, and wheel rim centre-height is greater than servo axis central siphon height and improves flexible arrangement to increase the hoisting depth of tire
Degree.
It is integrated on the guiding arm support and promotes lower bracket assembly mounting hole, promoted lower bracket assembly and be bolted on
It is oriented on arm support, compact-sized, easy for installation, system weight is light.
Bolt mounting surface between lower support of shock absorber assembly and carrying air bag lower bolster avoids servo axis central siphon, can lead to
It crosses suitable automatic screwing down apparatus to tighten, install convenient is reliable.
The guidance system includes leading arm and leading arm bracket assembly, and guiding arm assembly not only provides longitudinally guiding, also
By the rubber shaft bearing of special designing, laterally steering is realized.
The arrangement that the utility model promotes suspension is not influenced by transmission shaft, therefore its position is relatively flexible, and is closed
The position of reason can be effectively reduced front axle unstability risk, to improve front-axle steering reliability and driving safety；This is outstanding
Frame system improving height is higher, therefore can effectively improve automobile passability；Due to flexible arrangement, which is promoted outstanding
Frame system can effectively adjust axle load distribution, and compared to traditional promotion suspension system, it with higher promotes vehicle goods gross weight；
The suspension system is equipped with electric-control system, and the axle load between drive axle and servo axis can be made to carry out dynamic point by set control strategy
Match, vehicle dynamic quality, economy and driving safety can be effectively improved.
Finally it should be noted that: above embodiments are only to illustrate technical solution rather than its limitations；Although referring to compared with
Good embodiment is described in detail, it should be understood by those ordinary skilled in the art that: still can be to specific embodiment party
Formula is modified or some technical features can be equivalently replaced without departing from scheme spirit, should all cover and be asked in this case
It asks in the technical proposal scope of protection.
Claims (4)
1. a kind of commercial vehicle promotes axis suspension system, which is characterized in that mentioned including air bag bearing system (1), guidance system, air bag
System (2) and vibration insulating system (3) are risen, system above is arranged symmetrically both with respect to vehicle frame longitudinal center plane, wherein
The air bag bearing system (1) includes two groups of air bag bogeys being arranged symmetrically along vehicle frame longitudinal center plane, every group of gas
Capsule bogey includes carrying air bag upper bracket assembly (7), carrying air bag assembly (8), carrying air bag lower bolster assembly (9), leads
To arm (6) and leading arm bracket assembly (5), wherein carrying air bag upper bracket assembly (7), carrying air bag assembly (8), carrying air bag
Lower bolster assembly (9) is from top to bottom successively connected, and carrying air bag lower bolster assembly (9) is included with the vibration insulating system (3) again
Lower support of shock absorber assembly (10) be from top to bottom connected, carrying air bag upper bracket assembly (7) passes through bolt and longitudinal beam side
Face is connected, and the servo axis (4) of carrying air bag lower bolster assembly (9) and vehicle is connected, and leading arm bracket assembly (5) top is fixed on
Vehicle frame, one end axis company of lower part and leading arm (6), the other end of leading arm (6) are fixed on the servo axis (4) of vehicle；
The airbag lift system (2) includes two groups of airbag lift devices being arranged symmetrically along vehicle frame longitudinal center plane, every group of gas
Capsule lifting device includes lifting bracket assembly (13) and promotes air bag assembly (12), wherein lifting bracket assembly (13) one end and institute
It states leading arm bracket assembly (5) to be connected, to be fixed on vehicle frame, the other end and promotion air bag by leading arm bracket assembly (5)
Assembly (12) lower part is connected, and the lifting bracket (4b) for promoting air bag assembly (12) top and the servo axis (4) is connected；
The vibration insulating system (3) includes two groups of symmetrical damping devices, and every group of damping device includes damper upper bracket assembly
(14), damper (15) and lower support of shock absorber assembly (10), wherein damper upper bracket assembly (14) is fixed on longitudinal beam
Side, lower support of shock absorber assembly (10) are fixed on the servo axis (4), and lower support of shock absorber assembly (10) both ends pass through respectively
Pin shaft is connect with damper upper bracket assembly (14) and lower support of shock absorber assembly (10)；
The carrying air bag assembly (8) is internally provided with the first limited block, described for carrying out upper limit to entire suspension system
It promotes air bag assembly (12) and is internally provided with the second limited block, second limited block and the damper (15) are jointly to entire outstanding
Frame system carries out lower limit.
2. a kind of commercial vehicle according to claim 1 promotes axis suspension system, which is characterized in that carrying air bag lower bolster is total
It is connected at (9) and lower support of shock absorber assembly (10) by bolt and positioning finger setting；Leading arm (6) and servo axis (4) are connected
One end be that pad is pressed between the hold-down support (4a) that lower support of shock absorber assembly (10) and servo axis (4) are included, and lead to
U bolt (11) and the first bolt (10a) and the second bolt (6b) are crossed by lower support of shock absorber assembly (10), leading arm (6)
It is connected with hold-down support (4a) three.
3. a kind of commercial vehicle according to claim 1 promotes axis suspension system, which is characterized in that leading arm (6) and guiding
Arm support assembly (5) is connected by rubber shaft bearing (6a).
4. a kind of commercial vehicle according to claim 1 promotes axis suspension system, which is characterized in that the servo axis (4)
Central siphon uses big sunk type bridge tube structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821423378.2U CN209008328U (en) | 2018-08-31 | 2018-08-31 | A kind of commercial vehicle promotion axis suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821423378.2U CN209008328U (en) | 2018-08-31 | 2018-08-31 | A kind of commercial vehicle promotion axis suspension system |
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| Publication Number | Publication Date |
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| CN209008328U true CN209008328U (en) | 2019-06-21 |
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ID=66832151
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821423378.2U Active CN209008328U (en) | 2018-08-31 | 2018-08-31 | A kind of commercial vehicle promotion axis suspension system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873795A (en) * | 2020-07-24 | 2020-11-03 | 中国重汽集团济南动力有限公司 | Air bag type intermediate support device for transmission shaft of commercial vehicle, assembling method and using method |
-
2018
- 2018-08-31 CN CN201821423378.2U patent/CN209008328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873795A (en) * | 2020-07-24 | 2020-11-03 | 中国重汽集团济南动力有限公司 | Air bag type intermediate support device for transmission shaft of commercial vehicle, assembling method and using method |
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