CN101670762B - Height adjusting valve - Google Patents
Height adjusting valve Download PDFInfo
- Publication number
- CN101670762B CN101670762B CN2009101769636A CN200910176963A CN101670762B CN 101670762 B CN101670762 B CN 101670762B CN 2009101769636 A CN2009101769636 A CN 2009101769636A CN 200910176963 A CN200910176963 A CN 200910176963A CN 101670762 B CN101670762 B CN 101670762B
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- China
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- slide bar
- sleeve pipe
- housing
- spool
- adjusting valve
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Abstract
The invention relates to a height adjusting valve for adjusting the gesture of a vehicle; when the gesture of the vehicle is needed to adjust, the regulation of the gesture of the vehicle can be realized by presetting the mechanism and using a hydraulic control system. The adjusting system has a mechanical structure, adopts the integrated height adjusting valve, does not need to add an additional electrical control system and can work under bad work conditions so as to reduce the cost and increase the service life of the product.
Description
Technical field
The present invention relates to a kind of height adjusting valve that is applied to use the vehicle car appearance control system of hydro-pneumatic spring.Belong to hydraulic machinery and road vehicle application field.
Background technology
In order to satisfy the specific (special) requirements of vehicle car appearance state, at present, the overwhelming majority is equipped with the engineering truck of car appearance adjustable system, all be to adopt oleo-pneumatic suspension, this kind form of springs is easier to realize the adjusting of vehicle attitude by corresponding hydraulic control system, and generally need adopt displacement or angular transducer to carry out automatically controlled location for height adjustment.Because some vehicle with special purpose for safety needs explosion prevention function, has limited its use.
Summary of the invention
For solving the above-mentioned problems in the prior art, the invention provides a kind of height adjusting valve that is applicable to that the car appearance is regulated, comprise tappet rod complement, big spring, the spool pad, sleeve pipe, slide bar, housing, little spring, cup shell, O type circle, back up ring and steel ball, wherein tappet rod complement comprises tappet, tappet rod complement, spool, pad, sleeve pipe, slide bar and cup shell are assemblied in the housing successively, and compress by little spring and big spring, it is interior also fixing that steel ball is loaded on the groove of tappet, steel ball can freely rotate, the predetermincd tension of big spring is greater than little spring, and the slide bar middle part has two circular grooves; Big spring is installed on the tappet, is fixed in a side of housing simultaneously with cup shell; From the opposite side of housing pack into successively sleeve pipe and slide bar, little spring is placed on the small end of spool, is loaded in the fittings body, in the housing of together packing into and tighten; The small end of sleeve pipe, slide bar and spool all is positioned at the same side of housing.
Be free-running fit between slide bar and the sleeve pipe, and keep higher right alignment.Be side seal when spool contacts with sleeve pipe, have higher planeness and degree of finish requirement.
The present invention is used to be equipped with the vehicle of oleo-pneumatic suspension, when needs are regulated vehicle attitude, by presetting to this cover mechanism, the utilization hydraulic control system can realize the adjusting of vehicle attitude, and this overlaps control system owing to be physical construction, and adopts integrated height adjusting valve, need not additionally install electric-control system additional, can under abominable operating mode, work, reduce cost simultaneously, improve the service life of product.
Description of drawings
Fig. 1 is the height adjusting valve erection plan;
Fig. 2 is a height adjusting valve tappet rod complement constructional drawing;
Fig. 3.Be the height adjusting valve constructional drawing;
Fig. 4 stretches out constitution diagram for height adjusting valve;
Fig. 5 is height adjusting valve retracted state figure;
Fig. 6 height adjusting valve partial enlarged drawing.
The specific embodiment
Below in conjunction with accompanying drawing height adjusting valve of the present invention is done detailed description:
The object of the present invention is to provide a kind of simple, reliable, vehicle height adjusting valve that compatible with environment is strong
This valve comprises tappet rod complement 1, little spring 2, spool 3, pad 4, sleeve pipe 5, slide bar 6, housing 7, big spring 8, cup shell 9, O type circle 10.Wherein tappet rod complement 1, spool 3, pad 4, sleeve pipe 5, slide bar 6, cup shell 9 are assemblied in the housing successively, and compress by little spring 2 and big spring 8.
In the car body relevant position, the height of car body can be converted into thrust to tappet rod complement 1 by push rod B to height adjusting valve A by bolt, and this push rod B is installed on the relevant position of tappet rod complement 1 axis, as shown in Figure 1.
Figure 2 shows that the assembly figure of tappet rod complement 1, steel ball F be loaded in the groove of tappet C and fixing, require steel ball freely to rotate, the while pack in proper order O type circle D, back up ring E.
Figure 3 shows that the assembly figure of height adjusting valve, big spring 8 be installed on the tappet rod complement 1 that the above-mentioned part that will install with cup shell 9 is fixed in the housing 7.From the opposite side of housing 7 pack into successively sleeve pipe 5 and slide bar 6, little spring 2 is placed on the small end of spool 3, be loaded in the fittings body G, in the housing 7 of together packing into and tighten.
A steel ball F (accompanying drawing 2) is gone in these height adjusting valve tappet rod complement 1 one side pressures, this structure can be reduced in push rod B surface contact process in the side force that produced, eliminate the catching phenomenon that produces when tappet rod complement 1 with housing 7 relative motions takes place simultaneously.Require the spring force of the spring force of big spring 8, to guarantee that height adjusting valve is when initial such as Fig. 5 state greater than little spring 2.Slide bar 6 middle parts have two circular grooves 13 as seen from Figure 4, and this groove can have been stored a small amount of hydraulic oil in slide bar work engineering, to guarantee the capable of expansion and contraction of slide bar 6.
Between slide bar 6 and the sleeve pipe 5 is free-running fit, and keeps higher right alignment, to guarantee that slip freely in the working process.Spool.3 with the sleeve pipe working process in be side seal, as Fig. 4 and shown in Figure 6, so spool all has higher planeness and degree of finish requirement with the end face that contacts of sleeve pipe.
Fig. 4 and height adjusting valve when work, the state that tappet rod complement 1 stretches out and regains of being respectively shown in Figure 5.
Fig. 6 is height adjusting valve slide bar annular chamber and sleeve pipe partial enlarged drawing.
Principle of work and characteristics below in conjunction with Fig. 1-6 pair height adjusting valve of the present invention are described in detail.When vehicle car appearance height changed, height adjusting valve was started working, and II mouth control end provides high pressure oil, and pressure promotes spool 3, slide bar 6 and tappet rod complement 1 and moves to right, and compresses big spring 8 simultaneously, state such as Fig. 4.At this moment, spool 3 stop motion that contacts with the left side of sleeve pipe 5, slide bar 6 left side annular chambers 15 radially are communicated with in normal open hole 14 with sleeve pipe 5, hydraulic oil in the hydro-pneumatic spring by pilot piping in the I mouth flows into height adjusting valve annular chamber 15, the pressure that is produced promotes slide bar 6 continuation compression big springs 8 and moves to right, this moment, fluid entered slide bar 6 internal cavities 12, flowed out from slide bar 6 right radial normal open holes 11, flowed back to fuel tank by the III mouth at last.
In this working process, because hydraulic oil continuously outflows in the hydro-pneumatic spring, oil mass reduces gradually in the hydro-pneumatic spring, the height of vehicle also decreases, by with the link gear of wheel, can drive the push rod B tappet rod complement 1 that gradually reduces, in tappet rod complement 1 compressed process, promote slide bar 6 successively, spool 3 is got back to accompanying drawing 5 positions.At this moment, slide bar 6 left side annular chambers 15 radially separate in normal open hole 14 with sleeve pipe 5, and the way to cycle oil of Xing Chenging is blocked before, and hydro-pneumatic spring in-to-in hydraulic oil can't flow back to fuel tank, and the height state of vehicle promptly is fixed.
By to the rearranging of height adjusting valve and push rod position, this levelling valve also can be realized in hydro-pneumatic spring oil-filled, thereby makes vehicle car appearance height be increased to the control of specified altitude assignment.
Need to prove, those skilled in the art can easily understand, height adjusting valve involved in the present invention can be installed in the dissimilar vehicles that are equipped with hydro-pneumatic spring in the above described manner, also can be used as height or position adjustments valve simultaneously, is installed in the equipment or instrument of specific (special) requirements.And under the situation that does not break away from the spirit and scope of the present invention that are defined by the following claims, can carry out various multi-form changes and change to the present invention.
Claims (2)
1. height adjusting valve that is applicable to that the car appearance is regulated, comprise tappet rod complement, big spring, spool, pad, sleeve pipe, slide bar, housing, little spring, cup shell, O type circle, back up ring and steel ball, wherein tappet rod complement comprises tappet, tappet rod complement, spool, pad, sleeve pipe, slide bar and cup shell are assemblied in the housing successively, and compress by little spring and big spring, it is interior also fixing that steel ball is loaded on the groove of tappet, steel ball can freely rotate, the predetermincd tension of big spring is greater than little spring, and the slide bar middle part has two circular grooves; Big spring is installed on the tappet, is fixed in a side of housing simultaneously with cup shell; From the opposite side of housing pack into successively sleeve pipe and slide bar, little spring is placed on the small end of spool, is loaded in the fittings body, in the housing of together packing into and tighten; The small end of sleeve pipe, slide bar and spool all is positioned at the same side of housing.
2. height adjusting valve according to claim 1 is characterized in that: being free-running fit between described slide bar and the sleeve pipe, and keeping higher right alignment, is side seal when described spool contacts with sleeve pipe, has higher planeness and degree of finish requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101769636A CN101670762B (en) | 2009-09-25 | 2009-09-25 | Height adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101769636A CN101670762B (en) | 2009-09-25 | 2009-09-25 | Height adjusting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101670762A CN101670762A (en) | 2010-03-17 |
| CN101670762B true CN101670762B (en) | 2011-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101769636A Active CN101670762B (en) | 2009-09-25 | 2009-09-25 | Height adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101670762B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948641B (en) * | 2015-05-13 | 2017-03-01 | 中国科学院上海光学精密机械研究所 | Optics vibration-isolating platform automatic height adjustment valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0680838B1 (en) * | 1994-05-07 | 1999-08-11 | Haldex Brake Products GmbH & Co. KG | Load levelling valve for keeping constant the height of a commercial vehicle with pneumatic suspension |
| CN1377315A (en) * | 1999-08-24 | 2002-10-30 | 哈尔德克斯制动器公司 | Trailing arm suspension and height control valve therefor |
| CN2574930Y (en) * | 2002-10-14 | 2003-09-24 | 周苗长 | Two-shift pneumatic auxiliary speed variator for vehicle |
| CN2809376Y (en) * | 2005-05-09 | 2006-08-23 | 刘敬善 | Externally regulating type seal oil pressure regulating valve |
-
2009
- 2009-09-25 CN CN2009101769636A patent/CN101670762B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0680838B1 (en) * | 1994-05-07 | 1999-08-11 | Haldex Brake Products GmbH & Co. KG | Load levelling valve for keeping constant the height of a commercial vehicle with pneumatic suspension |
| CN1377315A (en) * | 1999-08-24 | 2002-10-30 | 哈尔德克斯制动器公司 | Trailing arm suspension and height control valve therefor |
| CN2574930Y (en) * | 2002-10-14 | 2003-09-24 | 周苗长 | Two-shift pneumatic auxiliary speed variator for vehicle |
| CN2809376Y (en) * | 2005-05-09 | 2006-08-23 | 刘敬善 | Externally regulating type seal oil pressure regulating valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101670762A (en) | 2010-03-17 |
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