CN109178119A - A kind of automobile bodies hydraulic suspension device - Google Patents
A kind of automobile bodies hydraulic suspension device Download PDFInfo
- Publication number
- CN109178119A CN109178119A CN201811138882.2A CN201811138882A CN109178119A CN 109178119 A CN109178119 A CN 109178119A CN 201811138882 A CN201811138882 A CN 201811138882A CN 109178119 A CN109178119 A CN 109178119A
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- China
- Prior art keywords
- valve
- cavity
- epicoele
- valve body
- resorption
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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
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/08—Superstructures for load-carrying vehicles comprising adjustable means
- B62D33/10—Superstructures for load-carrying vehicles comprising adjustable means comprising means for the suspension of the superstructure on the frame
Abstract
The present invention discloses a kind of automobile bodies hydraulic suspension device, and top cover, shell and pedestal form accommodation space；Interior of shell is equipped with inner casing and the accommodation space is divided into mutually independent epicoele, left chamber and right chamber, and inner casing centre bore is equipped with the piston that can axially move up and down and separates epicoele and cavity of resorption, and groups of springs is equipped between piston bottom surface and base top surface；Left chamber is connected by compression valve with cavity of resorption, left chamber is connected by rebound valve with epicoele, right chamber is connected by recuperation valve with cavity of resorption, right chamber is connected by flowing valve with epicoele, left chamber is connected with right chamber by being set to the circulation passage of chassis interior, flow-through channel central part is equipped with the rotary valve of controllable circulation area, and hydraulic oil is each filled with inside left chamber, right chamber, epicoele and cavity of resorption, and hydraulic oil can be opened by the valve between each cavity and realize circulation.Compared with the prior art, technical solution of the present invention has many advantages, such as that damping is steady and reliable operation, can effectively the pitch transmitted between compartment and vehicle frame is effectively relieved and be eliminated.
Description
Technical field
The present invention relates to automobile suspended technical field, in particular to a kind of automobile bodies hydraulic suspension device.
Background technique
In the prior art, the rear suspension of heavy goods vehicle is usually leaf spring, to guarantee that lorry can load more weights,
Leaf spring rigidity is larger, so that the whole ride comfort of vehicle is poor, by it is non-mat formation section when be easy to produce larger amplitude
It the vibration of degree and jolts, especially when transporting fragile goods, extremely be easy to cause cargo damage or other adverse consequences.
To avoid the lorry using leaf spring from occurring the above problem during transportation, the prior art is used in vehicle
Installation is used for the hydraulic suspension device of bumper and absorbing shock between compartment and vehicle frame, but since heavy vehicle loading weight is all larger,
The problems such as capacity requirement for absorb vibration is larger, is easy to appear oil liquid overheat and its performance is caused to decline, thus it is right
It is redesigned for the damper between vehicle car and vehicle frame in the hope of reaching the performance of optimization and being of great significance.
Summary of the invention
The main object of the present invention is to propose that a kind of damping is steady and the automobile bodies hydraulic suspension device of reliable operation, purport
The pitch transmitted between compartment and vehicle frame is being effectively relieved and is being eliminated.
To achieve the above object, a kind of automobile bodies hydraulic suspension device proposed by the present invention, including shell, the shell
Top is connected with top cover, and the outer casing bottom is connected with pedestal, and the top cover, the shell and pedestal composition accommodate empty
Between；The interior of shell is equipped with inner casing and the accommodation space is divided into mutually independent epicoele, left chamber and right chamber, the inner casing
Centre bore is equipped with the piston that can axially move up and down and separates the cavity of resorption of the epicoele and the inner housing inner, piston bottom surface
Groups of springs is equipped between the base top surface；The left chamber is connected by compression valve with the cavity of resorption, and the left chamber is by stretching
Valve is connected with the epicoele, and the right chamber passes through recuperation valve and is connected with the cavity of resorption, the right chamber pass through flowing valve with it is described
Epicoele is connected, and the left chamber is connected with the right chamber by being set to the circulation passage of the chassis interior, the circulation passage
Middle part is equipped with the rotary valve of controllable circulation area, is each filled with liquid inside the left chamber, the right chamber, the epicoele and the cavity of resorption
Pressure oil, hydraulic oil can be opened by the valve between each cavity and realize circulation.
Preferably, the groups of springs includes circumferentially being set to external big spring and set on the small of the big spring inner circumferential
Spring.
Preferably, the coefficient of elasticity of the big spring is greater than the coefficient of elasticity of the little spring.
Preferably, the rebound valve inside is horizontally slidable equipped with extension valve body and will be connected to the epicoele and the left chamber
Passway open or close, the extension body top is that conical structure and root are equipped with groove and are equipped with reset spring.
Preferably, the flowing valve inside is horizontally slidable equipped with circulation valve body and will be connected to the epicoele and the right chamber
Passway open or close, the circulation valve body root be equipped with groove and be equipped with reset spring.
Preferably, the compression valve body being vertically arranged is equipped in the compression valve, the compression valve body is vertically movable will even
The multiple passways for leading to the left chamber and the cavity of resorption close or open, and the compression valve body outer peripheral surface is equipped with annular groove, the pressure
Contracting body top is conical structure and bottom is connected with reset spring.
Preferably, the compensation valve body being vertically arranged is equipped in the recuperation valve, the compensation valve body is vertically movable will even
The passway for leading to the cavity of resorption and the right chamber closes or opens, and the external circumferential surface of recuperation valve is equipped with annular groove, the recuperation valve
Body bottom is connected with reset spring.
Preferably, the extension valve body front end, compression valve body top and the compensation body top are all provided with useful
In the valve pad of buffering, the circulation valve end is equipped with limit base, and the limit base is hollow part and is circumferentially with through-hole.
Preferably, the top cover bottom surface is connected with guide sleeve and is placed on the piston outer periphery face, in the guide sleeve inner peripheral surface
Portion is placed on the piston outer periphery face embedded with c-type sealing ring.
Technical solution of the present invention has the advantage that compared with the prior art
Interior of shell accommodation space is divided into epicoele, left chamber, right chamber and cavity of resorption by inner casing by technical solution of the present invention,
And it is turned on or off between epicoele and left chamber by rebound valve, left chamber and cavity of resorption are turned on or off by compression valve, right
Chamber and epicoele are turned on or off by flowing valve, and right chamber and cavity of resorption are turned on or off by recuperation valve.When piston is pressed
When compeling active force and moving down and carry out moving up recovery by groups of springs, multiple cavities are matched by respective valves
Conjunction movement, makes hydraulic oil flow and supplement between multiple cavities, making can be to vibration inside the device of technical solution of the present invention
It generates higher hydraulic damping to be alleviated, so that effectively eliminating vehicle frame is transferred to compartment vibration to guarantee the flat of cargo transport process
Stability and avoid some inside cavity occur negative pressure influence overall structure safety.
In addition the automobile bodies hydraulic suspension device of technical solution of the present invention can be direct and be mounted as a whole on compartment and vehicle frame
Between connected position, therefore do not need to reequip compartment and chassis overall structure, make technical solution of the present invention in this way
Device has more preferable applicability.
At the same time, pass through the longer circulation passage of length in technical solution of the present invention between left chamber and right chamber to hydraulic oil
Radiating and cooling can avoid hydraulic oil high oil temperature in this way and influence device internal structure use reliability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic diagram of internal structure of automobile bodies hydraulic suspension device of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Top cover | 61 | Compression valve |
| 2 | Shell | 611 | Compression valve body |
| 21 | Epicoele | 62 | Recuperation valve |
| 22 | Left chamber | 621 | Compensate valve body |
| 23 | Right chamber | 63 | Rebound valve |
| 24 | Cavity of resorption | 631 | Uphold valve body |
| 3 | Pedestal | 64 | Flowing valve |
| 31 | Circulation passage | 641 | Circulate valve body |
| 32 | Rotary valve | 7 | Guide sleeve |
| 4 | Piston | 71 | C-type sealing ring |
| 5 | Groups of springs | 8 | Valve pad |
| 51 | Little spring | 9 | Limit base |
| 52 | Big spring | 10 | Reset spring |
| 6 | Inner casing |
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of automobile bodies hydraulic suspension device.
Referring to Figure 1, include shell 2 in the automobile bodies hydraulic suspension device of the embodiment of the present invention, be connected at the top of shell 2
Have a top cover 1,2 bottom of shell is connected with pedestal 3, top cover 1, shell 2 and pedestal 2 mutually composition accommodation space, for convenience into
Luggage is matched, the top cover 1 and shell 2 of the present embodiment, and shell 2 and 3 connected position of pedestal use welding procedure to be sealed to guarantee
Device integrally has with preferable tightness.The accommodation space is divided into mutually solely in addition, being equipped with inner casing 6 inside shell 2
Vertical epicoele 21, left chamber 22 and right chamber 23,6 centre bore of inner casing are equipped with the piston 4 that can axially move up and down for epicoele 21 and interior
Cavity of resorption 24 inside shell 6 separates, and groups of springs 5 is equipped between 3 top surface of 4 bottom surface of piston and pedestal；Left chamber 22 by compression valve 61 with
Cavity of resorption 24 is connected, and left chamber 22 is connected by rebound valve 63 with epicoele 21, and right chamber 23 is connected by recuperation valve 62 with cavity of resorption 24, right chamber
23 are connected by flowing valve 64 with epicoele 21, and left chamber 22 is connected with right chamber 23 by being set to the circulation passage 31 inside pedestal 3,
Be equipped with the rotary valve 32 of controllable circulation area in the middle part of circulation passage 31, inside left chamber 22, right chamber 23, epicoele 21 and cavity of resorption 24 filled with
Hydraulic oil, hydraulic oil can be opened by the valve between each cavity and realize circulation.
Wherein, the groups of springs 5 of the present embodiment includes the circumferential big spring 52 for being set to outside and is set in big spring 52
The little spring 51 in week, and the coefficient of elasticity of the big spring 52 is greater than the coefficient of elasticity of little spring 51, so that groups of springs 5 was both
It can overall stiffness with higher and preferable fatigue resistance.
Specifically, inside the rebound valve 63 of the present embodiment be equipped with uphold valve body 631 it is horizontally slidable and will be connected to epicoele 21
It is opened or closed with the passway of left chamber 22, upholding at the top of valve body 631 is conical structure and root is equipped with groove and is equipped with and resets
Spring 10.Passway that is horizontally slidable equipped with circulation valve body 641 and will being connected to epicoele 21 and right chamber 23 is beaten inside flowing valve 64
On or off is closed, and circulation 641 root of valve body is equipped with groove and is equipped with reset spring 10.The compression being vertically arranged is equipped in compression valve 61
Valve body 611, compression valve body 611, which is vertically movable, closes or opens the multiple passways for being connected to left chamber 22 and cavity of resorption 24, compresses
611 outer peripheral surface of valve body is equipped with annular groove, and at the top of compression valve body 611 be conical structure and bottom is connected with reset spring 10.Recuperation valve
The compensation valve body 621 being vertically arranged is equipped in 62, compensation valve body 621, which is vertically movable, will be connected to the channel of cavity of resorption 24 and right chamber 23
Mouth closes or opens, and compensation 621 outer peripheral surface of valve body is equipped with annular groove, and compensation 621 bottom of valve body is connected with reset spring 10.
In addition, being equipped at the top of the 63 body front end of rebound valve of the present embodiment, 61 body of compression valve and at the top of 62 body of recuperation valve
For the valve pad 8 of buffering, 641 end of valve body of circulating is equipped with limit base 9, and limit base 9 is hollow part and is circumferentially with logical
Hole, the valve pad 8 and limit base 9 being equipped in the present embodiment can generate preferable buffering and damping effect.
1 bottom surface of top cover of this implementation is connected with guide sleeve 7 and is placed on 4 outer peripheral surface of piston, and embedding inside 7 inner peripheral surface of guide sleeve
There is c-type sealing ring 71 to be placed on 4 outer peripheral surface of piston to generate preferable leakproofness to 4 outer peripheral surface of piston.
Referring to Figure 1, the working principle of the automobile bodies hydraulic suspension device of the present embodiment are as follows:
The automobile bodies hydraulic suspension device of the present embodiment is the connecting component being set between compartment and vehicle frame, works as compartment
Since vehicle is when non-paved road travels and generates vibration and jolt, compartment generates piston 4 and oppresses downward active force,
Move downward piston 4, so that the hydraulic oil pressure in cavity of resorption 24 increases, and hydraulic oil enters to compression valve body through via hole f1
In space between 611 top conical faces and cavity, at the same time, hydraulic oil also passes through hole f2 and enters to compression valve body 611
In space between middle part annular groove and cavity.When the pressure that 611 top conical face of compression valve body is subject to is greater than 611 bottom of compression valve body
When the 10 impetus power of reset spring in portion, can by compression valve body 611 downwards elapse, thus make originally by compression valve body 611 every
Disconnected hole e1 and f1 and e2 and f2 leads to again, so that the hydraulic oil in cavity of resorption 24 passes through compression valve body 611 and cavity
Between 611 outer peripheral surface of space and compression valve body middle annular groove and enter in left chamber 22, due to two groups of hole system hole e1 and f1,
E2 and f2 can carry out hydraulic oil circulation, thus can guarantee hydraulic oil from left chamber 22 to have between cavity of resorption 24 preferable circulation with
And the hydraulic oil process of circulation is made to can produce higher compression damping power.
During piston 4 moves downward, recuperation valve 62 and rebound valve 63 are in close state, with piston 4
It moves gradually downward, the overall volume of epicoele 21 is gradually increased, therefore the hydraulic oil pressure inside epicoele 21 gradually decreases, in this way
So that the circulation valve body 641 inside flowing valve 64 is overcome 10 elastic acting force of reset spring by suction and gradually sidesway to the right
It is dynamic and close hole c2, since limit base is hollow structure and is circumferentially with through-hole and be connected to hole c1 with hole d, originally positioned at right
Hydraulic oil in chamber 23 enters in epicoele 21 through via hole d and hole c1.Due to in right chamber 23 hydraulic oil be continuously replenished to
Epicoele 21, the hydraulic oil in left chamber 22 enter to right chamber 23 by the circulation passage 31 and rotary valve 32 inside pedestal 3, in this way
It is safe that the structure that dynamic circulation process is generated to avoid some inside cavity inside negative pressure of vacuum influence can be formed.
During being moved down due to piston 4, groups of springs 5 is oppressed by 4 bottom of piston and generates compressive deformation, with vehicle
When opposing stationary between compartment and vehicle frame, groups of springs 5 needs to restore script state, therefore groups of springs 5 pushes piston 4 to moving up
It is dynamic, the hydraulic oil pressure of epicoele 21 can in this way increased, hydraulic oil is entered to through via hole c2 in the groove of circulation 641 right end of valve body
And push circulation valve body 641 to move downward, circulate valve body 641 under 10 collective effect of hydraulic oil and reset spring gradually to the left
Channel enclosed mobile and that hole c1 is closed, while also hole c1 being connected with hole d.Gradually with the hydraulic oil pressure in epicoele 21
It increases, hydraulic oil is entered to through via hole a upholds space between 631 front end of valve body and cavity and extension valve body 631 is pushed to overcome again
Position 10 active force of spring and move right so that hole a is connected to hole b, the hydraulic oil in epicoele 21 through via hole a and hole b into
Enter to left chamber 22, due to only having one group of hole system to carry out hydraulic oil circulation, hydraulic oil circulation area is smaller, can guarantee live in this way
Plug 4 can generate higher stretching damping force during moving up, at the same time, in the upward reseting procedure of piston 4, flowing valve
64 and compression valve 61 be in close state.
During piston 4 moves up, the volume of cavity of resorption 24 is gradually increased, in cavity of resorption 24 hydraulic oil pressure gradually under
Drop, compensation valve body 621 are adsorbed by cavity of resorption 24 and overcome 10 active force of reset spring and move down, due to compensating valve body 621
After outer peripheral surface is equipped with annular groove, therefore compensation valve body 621 moves down, the part hole h2 can be covered, and hole h1 is connected with hole g,
Therefore the hydraulic oil in right chamber 23 can enter to cavity of resorption 24 through via hole g and hole h1 and play supplementary result.Equally, with right chamber
23 hydraulic oil constantly reduces, and the hydraulic oil in left chamber 22 enters in right chamber 23 and most by circulation passage 31 and rotary valve 32
End form can avoid some inside cavity and negative pressure occur at dynamic circulation process.
It should be noted that the hydraulic oil of the above process enters to right chamber 23 from left chamber 22 or right chamber 23 enters to left chamber 22
In the process, hydraulic oil will may make that in this way hydraulic oil is right by the circulation passage 31 by the circulation passage 31 inside pedestal 3
Heat progress rapid cooling is generated because piston 4 is carried out at high speed reciprocating action, to guarantee being not in biggish oil inside device
Temperature aggregation.
In addition, the rotary valve 32 that the present embodiment is set in circulation passage 31 is axially arranged with recirculation hole, therefore rotation can be passed through
The recirculation hole circulation area inside rotary valve 32 is adjusted adaptively to adjust hydraulic oil velocity of liquid assets between left chamber 22 and right chamber 23.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the design of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/it is used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (9)
1. a kind of automobile bodies hydraulic suspension device, which is characterized in that including shell, the cover top portion is connected with top cover, institute
It states outer casing bottom and is connected with pedestal, the top cover, the shell and the pedestal form accommodation space；The interior of shell is set
There is inner casing that the accommodation space is divided into mutually independent epicoele, left chamber and right chamber, the inner casing centre bore is equipped with can be axial
The piston of up and down motion separates the cavity of resorption of the epicoele and the inner housing inner, piston bottom surface and the base top surface it
Between be equipped with groups of springs；The left chamber is connected by compression valve with the cavity of resorption, and the left chamber passes through rebound valve and the epicoele phase
Even, the right chamber is connected by recuperation valve with the cavity of resorption, and the right chamber is connected by flowing valve with the epicoele, the left chamber
It is connected with the right chamber by being set to the circulation passage of the chassis interior, the flow-through channel central part is equipped with controllable circulation
The rotary valve of area is each filled with hydraulic oil inside the left chamber, the right chamber, the epicoele and the cavity of resorption, and hydraulic oil can pass through
Valve between each cavity, which is opened, realizes circulation.
2. automobile bodies hydraulic suspension device as described in claim 1, which is characterized in that the groups of springs includes circumferential setting
In external big spring and set on the little spring of the big spring inner circumferential.
3. automobile bodies hydraulic suspension device as claimed in claim 2, which is characterized in that the coefficient of elasticity of the big spring is big
In the coefficient of elasticity of the little spring.
4. automobile bodies hydraulic suspension device as described in claim 1, which is characterized in that be equipped with and uphold inside the rebound valve
Valve body is horizontally slidable and the passway that will be connected to the epicoele and the left chamber opens or closes, and the extension body top is
Conical structure and root are equipped with groove and are equipped with reset spring.
5. automobile bodies hydraulic suspension device as claimed in claim 4, which is characterized in that be equipped with circulation inside the flowing valve
Valve body is horizontally slidable and the passway that will be connected to the epicoele and the right chamber opens or closes, and the circulation valve body root is set
It is fluted and be equipped with reset spring.
6. automobile bodies hydraulic suspension device as claimed in claim 5, which is characterized in that be equipped in the compression valve and set vertically
The compression valve body set, the compression valve body be vertically movable by be connected to the left chamber and the cavity of resorption multiple passways close or
It opens, the compression valve body outer peripheral surface is equipped with annular groove, and at the top of the compression valve body be conical structure and bottom is connected with reset bullet
Spring.
7. automobile bodies hydraulic suspension device as claimed in claim 6, which is characterized in that be equipped in the recuperation valve and set vertically
The compensation valve body set, the compensation valve body, which is vertically movable, to be closed the passway for being connected to the cavity of resorption and the right chamber or beats
It opens, the external circumferential surface of recuperation valve is equipped with annular groove, and the compensation body base is connected with reset spring.
8. automobile bodies hydraulic suspension device as claimed in claim 7, which is characterized in that the extension valve body front end, described
At the top of compression valve body and the compensation body top is equipped with the valve pad for buffering, and the circulation valve end is equipped with limit
Seat, the limit base are hollow part and are circumferentially with through-hole.
9. automobile bodies hydraulic suspension device as described in claim 1, which is characterized in that the top cover bottom surface is connected with guiding
It is placed on the piston outer periphery face, c-type sealing ring is embedded with inside the guide sleeve inner peripheral surface and is placed on the piston outer periphery face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138882.2A CN109178119B (en) | 2018-09-28 | 2018-09-28 | Hydraulic suspension device for automobile carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138882.2A CN109178119B (en) | 2018-09-28 | 2018-09-28 | Hydraulic suspension device for automobile carriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109178119A true CN109178119A (en) | 2019-01-11 |
| CN109178119B CN109178119B (en) | 2023-10-20 |
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ID=64906662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811138882.2A Active CN109178119B (en) | 2018-09-28 | 2018-09-28 | Hydraulic suspension device for automobile carriage |
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| Country | Link |
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| CN (1) | CN109178119B (en) |
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| Publication number | Publication date |
|---|---|
| CN109178119B (en) | 2023-10-20 |
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