CN102168734B - Through-flow area adjustable control valve for connecting air spring and additional air chamber - Google Patents
Through-flow area adjustable control valve for connecting air spring and additional air chamber Download PDFInfo
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- CN102168734B CN102168734B CN2011101070614A CN201110107061A CN102168734B CN 102168734 B CN102168734 B CN 102168734B CN 2011101070614 A CN2011101070614 A CN 2011101070614A CN 201110107061 A CN201110107061 A CN 201110107061A CN 102168734 B CN102168734 B CN 102168734B
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- steel pipe
- round plate
- plate diaphragm
- transmission shaft
- round
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- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a through-flow area adjustable control valve for connecting an air spring and an additional air chamber. One end of a side steel tube is in sealed connection with the sidewall of a steel tube and is communicated with an inner cavity of the upper part of the steel tube; a stepping motor is arranged in an upper end cover; a transmission shaft, a preloaded spring, a first round steel plate membrane and a second round steel plate membrane are arranged in sequence in the tube on the upper part of the steel tube from top to bottom; the second round steel plate membrane is radially fixed in the tube of the steel tube; the first round steel plate membrane is laminated coaxially on the upper surface of the second round steel plate membrane; the transmission shaft is sleeved with the preloaded spring; the upper end of the transmission shaft is connected with the stepping motor, and the lower end of the transmission shaft is connected with the first round steel plate membrane; the first round steel plate membrane is provided with a semi-circular annular hole; the second round steel plate membrane is provided with an annular groove corresponding to the semi-circular annular hole; the annular groove has the same inner circular arc radius as the semi-circular annular hole; and the precise adjustment of the flow area inside the tube can be realized within a certain opening degree, and the damping of a pipeline between the air spring and the additional air chamber is effectively changed.
Description
Technical field
The present invention relates to a kind of flow control valve, and relate more specifically to a kind of flow control valve that is installed between pneumatic spring and the auxiliary chamber.
Background technique
The injustice excitation on vehicle driving road surface or the variation of spring carried mass can cause the variation of running parameters such as pneumatic spring internal pressure and actual volume, cause air spring rigidity generation nonlinear change then.Therefore, adjustable suspension damping could form matched well with air spring rigidity, reaches the high-performance of air suspension vehicle dynamic operation.And the damping part of suspension is from the pipeline between pneumatic spring and the auxiliary chamber; Damping in the pipeline is mainly from the control valve in the pipeline; Thereby; The control valve that flow area is adjustable can change the damping of pipeline between pneumatic spring and the auxiliary chamber, and the flow control valve of existing adjusting flow area can't carry out effective adjusting of flow area when being applied on the pneumatic spring to the damping characteristic of throttle orifice in the air spring system.
Summary of the invention
The purpose of this invention is to provide a kind of adjustable control valve of flow area that connects pneumatic spring and auxiliary chamber, can according to the damping characteristic change circulation area of throttle orifice, thereby obtain required damping according to the working condition signal of vehicle.
The technological scheme that the present invention adopts is: comprise columned steel pipe, side steel pipe and with the upper end cap of steel pipe upper end sealing, be tightly connected steel pipe sidewall and be communicated with of side steel pipe one end with steel pipe top inner chamber; Be provided with stepper motor in the upper end cap, set gradually transmission shaft, preloading spring, the first round plate diaphragm and the second round plate diaphragm in the pipe on steel pipe top from top to bottom; The second round plate diaphragm radially is fixed in the pipe of steel pipe, the coaxial first round plate diaphragm that stacked on the second round plate diaphragm upper surface; Be with preloading spring on the transmission shaft, the transmission shaft upper end connects stepper motor, and the lower end connects the first round plate diaphragm; The taper pin that the first round plate diaphragm, the affixed transmission shaft in upper end are provided with is pressed in the preloading spring lower end; Establish a semi-round ring shape hole on the first round plate diaphragm; Establish a circular groove corresponding with the semi-round ring shape hole site on the second round plate diaphragm, circular groove is identical with the inner arc radius in semi-round ring shape hole.
Circulation area can realize accurately regulating in a certain aperture in the pipe of the present invention, effectively changes the damping of pipeline between pneumatic spring and the auxiliary chamber, improves the matching performance between whole suspension system rigidity and the damping.
Description of drawings
Fig. 1 is the schematic cross-section of structure of the present invention;
Fig. 2 is the cross-sectional view of the first round plate diaphragm 8 among Fig. 1;
Fig. 3 is the cross-sectional view of the second round plate diaphragm 9 among Fig. 1;
Fig. 4 is the working state cross-sectional view of first and second round plate diaphragm 8,9 among Fig. 1;
Among the figure: 1. steel pipe; 2. side steel pipe; 3. stepper motor; 4. upper end cap; 5. transmission shaft; 6. taper pin; 7. preloading spring; 8. the first round plate diaphragm; 9. the second round plate diaphragm; 10. semi-round ring shape hole; 11. draw-in groove hole; 12. circular groove.
Embodiment
Referring to Fig. 1-3; The present invention includes columned steel pipe 1, side steel pipe 2 and upper end cap 4; Upper end cap 4 is installed with the sealing of steel pipe 1 upper end, and upper end cap 4 is identical with the caliber of steel pipe 1, and stepper motor 3 is set in upper end cap 4; Stepper motor 3 connects outside step actuator, by the step actuator drive work of outside.1 fen upper and lower two-part of steel pipe, the caliber on top is greater than the caliber of bottom.Be tightly connected sidewall and its inner chamber of steel pipe 1 of side steel pipe 2 one ends is communicated with the top inner chamber of steel pipe 1.In the pipe on steel pipe 1 top, set gradually transmission shaft 5, preloading spring 7, the first round plate diaphragm 8 and the second round plate diaphragm 9 from top to bottom.The second round plate diaphragm 9 radially is fixedly installed in the pipe of steel pipe 1, stack the first round plate diaphragm, 8, the first round plate diaphragms 8 on the second round plate diaphragm, 9 upper surfaces and the second round plate diaphragm 9 coaxial.Transmission shaft 5 upper ends connect stepper motor 3, and the lower end is fixedly connected the first round plate diaphragm 8 through the draw-in groove hole 11 at the first round plate diaphragm, 8 centers.One taper pin 6 is arranged on the sidewall of transmission shaft 5; Preloading spring 7 is enclosed within on the transmission shaft 5; The first round plate diaphragm 8 is pressed in the lower end of preloading spring 7; The upper end is fixing by taper pin 6, and preloading spring 7 is given 8 one pretightening forces of the first round plate diaphragm, and the first round plate diaphragm 8 can closely be contacted with the second round plate diaphragm 9 all the time.
On the first round plate diaphragm 8, open a semi-round ring shape hole 10; On the second round plate diaphragm 9, drive a circular groove 12; Circular groove 12 is corresponding with the position in semi-round ring shape hole 10; The inner arc radius of circular groove 12 is identical with the inner arc radius in semi-round ring shape hole 10, makes the interior circular arc in circular groove 12 and semi-round ring shape hole 10 overlapping.The both ends open broad of circular groove 12, middle opening are narrower.
When the present invention works; In the vehicle driving process; By the driving cycle parameter (like pressure, vehicle body height etc. in vehicle driving acceleration, the pneumatic spring) of the continuous measuring vehicle of sensor, sensor passes to ECU with its vehicle driving-cycle parameter that records then, and ECU compares computing according to the signal that receives; After the processes such as the signal annular distribution of operation result signal process step actuator, power amplification, last drive stepping motor 3 motions.To show that needs increase main when attaching between the air chamber circulation area when the operation result of ECU; ECU just sends a forward signal; This signal passes to stepper motor 3 after step actuator is handled; Stepper motor 3 drives rotatingshaft 5 according to the pulse signal that receives and rotates counterclockwise, thereby makes the first round plate diaphragm 8 rotate counterclockwise an angle, and the semi-round ring shape hole 10 on such first round plate diaphragm 8 and the coincidence area of the circular groove 12 on the second round plate diaphragm 9 increase; This coincidence area is promptly managed interior actual circulation area, with reference to Fig. 4.So just increased the circulation area between steel pipe 1 and the side steel pipe 2.Otherwise; When the operation result of ECU show need reduce main when attaching between the air chamber circulation area; ECU just sends a reverse signal, and this signal passes to stepper motor 3 after step actuator is handled, and stepper motor 3 drives rotatingshaft 5 according to the pulse signal that receives and clockwise rotates; Thereby make the first round plate diaphragm 8 clockwise rotate an angle; The semi-round ring shape hole 10 on such first round plate diaphragm 8 and the coincidence area of the circular groove 12 on the second round plate diaphragm 9 reduce, and this coincidence area is promptly managed interior actual circulation area, has also just reduced the circulation area between steel pipe 1 and the side steel pipe 2.
Claims (2)
1. flow area adjustable control valve that connects pneumatic spring and auxiliary chamber; Comprise columned steel pipe (1), side steel pipe (2) and the upper end cap (4) that seals with steel pipe (1) upper end; Be tightly connected steel pipe (1) sidewall and be communicated with of side steel pipe (2) one ends with steel pipe (1) top inner chamber; It is characterized in that: be provided with stepper motor (3) in the upper end cap (4), set gradually transmission shaft (5), preloading spring (7), the first round plate diaphragm (8) and the second round plate diaphragm (9) in the pipe on steel pipe (1) top from top to bottom; The second round plate diaphragm (9) radially is fixed in the pipe of steel pipe (1), the coaxial first round plate diaphragm (8) that stacked on second round plate diaphragm (9) upper surface; Be with preloading spring (7) on the transmission shaft (5), transmission shaft (5) upper end connects stepper motor (3), and the lower end connects the first round plate diaphragm (8); The taper pin (6) that the first round plate diaphragm (8), the affixed transmission shaft in upper end (5) are provided with is pressed in preloading spring (7) lower end; Establish a semi-round ring shape hole (10) on the first round plate diaphragm (8); Establish a circular groove (12) corresponding with position, semi-round ring shape hole (10) on the second round plate diaphragm (9), circular groove (12) is identical with the inner arc radius of semi-round ring shape hole (10).
2. a kind of flow area adjustable control valve that connects pneumatic spring and auxiliary chamber according to claim 1 is characterized in that: the caliber on steel pipe (1) top is greater than the caliber of bottom; The both ends open of circular groove (12) is wide, middle opening is narrow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101070614A CN102168734B (en) | 2011-04-27 | 2011-04-27 | Through-flow area adjustable control valve for connecting air spring and additional air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101070614A CN102168734B (en) | 2011-04-27 | 2011-04-27 | Through-flow area adjustable control valve for connecting air spring and additional air chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168734A CN102168734A (en) | 2011-08-31 |
| CN102168734B true CN102168734B (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101070614A Expired - Fee Related CN102168734B (en) | 2011-04-27 | 2011-04-27 | Through-flow area adjustable control valve for connecting air spring and additional air chamber |
Country Status (1)
| Country | Link |
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| CN (1) | CN102168734B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384205A (en) * | 2011-10-17 | 2012-03-21 | 杨洁 | Air spring capable of regulating static stiffness by liquid charging and regulating dynamic stiffness by throttle plate floating |
| EP2765325B1 (en) * | 2013-02-08 | 2018-04-04 | ContiTech USA, Inc. | Air spring with stepper motor driven pneumatic valve |
| CN108253077B (en) * | 2017-12-13 | 2020-02-21 | 深圳市罗伯医疗科技有限公司 | Double-channel variable-damping hydraulic cylinder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1695847A1 (en) * | 2005-02-23 | 2006-08-30 | Haldex Brake Corporation | Air suspension system |
| CN202082332U (en) * | 2011-04-27 | 2011-12-21 | 江苏大学 | Control valve with adjustable throughflow area for connecting air spring with auxiliary air chamber |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4158150B2 (en) * | 2003-06-04 | 2008-10-01 | いすゞ自動車株式会社 | Vehicle height adjustment device |
| US7942427B2 (en) * | 2009-04-23 | 2011-05-17 | Arvinmeritor Technology, Llc | Air supply system for active air suspension |
-
2011
- 2011-04-27 CN CN2011101070614A patent/CN102168734B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1695847A1 (en) * | 2005-02-23 | 2006-08-30 | Haldex Brake Corporation | Air suspension system |
| CN202082332U (en) * | 2011-04-27 | 2011-12-21 | 江苏大学 | Control valve with adjustable throughflow area for connecting air spring with auxiliary air chamber |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2010-254295A 2010.11.11 |
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| Publication number | Publication date |
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| CN102168734A (en) | 2011-08-31 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20130427 |