CN1563727A - Electro-hydraulic servo-valve - Google Patents
Electro-hydraulic servo-valve Download PDFInfo
- Publication number
- CN1563727A CN1563727A CN 200410010796 CN200410010796A CN1563727A CN 1563727 A CN1563727 A CN 1563727A CN 200410010796 CN200410010796 CN 200410010796 CN 200410010796 A CN200410010796 A CN 200410010796A CN 1563727 A CN1563727 A CN 1563727A
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- input shaft
- output shaft
- shaft
- flap
- housing
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Abstract
In the electro-liquid serving valve, the input shaft and output shaft is connected with a gap. Between one end of the two valves petal is fixed on the shell, one end of the output valve petal is fixed on the output shaft. The sheiel is fixed on end of the shell. The input hydraulic cavity of the input shaft is connected with the hydraulic pressure channel; each hole of the channel of the output shaft is connected with a pressure chamber.
Description
Technical field
The invention belongs to a kind of electrohydraulic control, refer in particular to torque motor formula electrohydraulic control.
Background technique
Electrohydraulic control is a wherein important class in the industrial servovalve commonly used at present, and electrohydraulic control is components and parts crucial in the control system, and it can be transformed into large-power hydraulic output with low power electric energy input.Electrohydraulic control and corresponding feedback Detecting element match as displacement transducer, velocity transducer, pressure transducer etc., form various closed loop control system.Can carry out high-precision automatic control to various output physical quantitys.Electrohydraulic control also divides moving coil electrohydraulic control and torque motor formula electrohydraulic control, and the present Related product of torque motor formula electrohydraulic control seldom, and its existing structure is in complicated, the not enough state of optimizing that comparatively falls behind of design.
Summary of the invention
The invention provides a kind of electrohydraulic control, to solve the design complexity that exists in the present product, the not enough state of optimizing that comparatively falls behind.
The technological scheme that the present invention takes is: output shaft 1 is connected with input shaft 2 Spielpassung, flap 31 on the shell holder, 32 1 ends are fixedly connected on the housing 5, its the other end and output shaft are slidingly connected, output shaft flap 41,42 1 ends are fixed on the input shaft, the other end and housing 5 are slidingly connected, left end cap 61 is connected with the housing bolt, right end cap 62 is connected with the housing bolt, input shaft first hydraulic channel 25, input shaft second hydraulic channel 26 lays respectively on the input shaft, the input shaft hydraulic pressure cavity 21 on this input shaft, 22 are connected with input shaft first hydraulic channel 25 respectively; Input shaft hydraulic pressure cavity 23,24 on the input shaft is connected with input shaft second hydraulic channel 26 respectively, and passage 13,14,15,16 is arranged on the output shaft, and there is a pressure chamber 71,72,73,74 this each port hole outside; Between output shaft flap 41,42 and housing 5, be fixedly connected with nonmetal seal ring 81,82 respectively, fixedlying connected nonmetal seal ring 83,84 on the flap on the shell holder 31,32 with between the input shaft 1.Passage 13,14,15,16 on the output shaft distributes and takes asymmetric mode.During use, this invention is installed in the control system, high pressure oil is inserted in input shaft first hydraulic channel 25, second hydraulic channel 26; Rotate counterclockwise angle of input shaft, high pressure oil in input shaft first hydraulic channel 25 is after input shaft hydraulic pressure cavity 21,22 enters in the passage 13,15 on the output shaft respectively, enter in the pressure chamber 71,73 of this each port hole outside, at this moment these two pressure chambers are hyperbaric chamber, this high pressure oil promotes output shaft flap 41,42 respectively in pressure chamber 71,73, make output shaft 2 also rotate counterclockwise this equal angular; Simultaneously, pressure chamber 72,74 is a low-pressure cavity, and low pressure oil wherein is the passage on output shaft 14,16 respectively, and the input shaft hydraulic pressure cavity 23,24 on input shaft is back in input shaft second hydraulic channel 26 and flows out; In like manner, also can clockwise rotate input shaft, drive output shaft and clockwise rotate.
The principle that the present invention adopts is to use the moment motor driven, and the displacement of power guiding valve is carried out the moment feedback by feedback to torque motor.
Advantage of the present invention is a structural design novelty, simple, the precision height, cost is low, output shaft flap, shell holder have reduced the machining accuracy of other correlated parts after nonmetal sealing original paper sealing, passage on the output shaft distributes and takes asymmetric mode, improved the corner of output shaft, maximum can reach 120 °.Reliable operation safeguards that easily the dynamic and static state performance height has zero point stability, and is highly sensitive, the zero characteristics such as little, Bandwidth of wafing.Application of the present invention is wide, and is more extensive high-tech area, space flight, aerospace industry, robot field.
Description of drawings
Fig. 1, structural representation of the present invention; B-B sectional view for Fig. 2;
The A-A sectional view of Fig. 2, Fig. 1
Embodiment
Embodiment 1:
Output shaft 1 is connected with input shaft 2 Spielpassung, flap 31,32 1 ends are fixedly connected on the housing 5 on the shell holder, its the other end and output shaft are slidingly connected, output shaft flap 41,42 1 ends are fixed on the input shaft, the other end and housing 5 are slidingly connected, left end cap 61 is connected with the housing bolt, right end cap 62 is connected with the housing bolt, input shaft first hydraulic channel 25, input shaft second hydraulic channel 26 lay respectively on the input shaft, and the input shaft hydraulic pressure cavity 21,22 on this input shaft is connected with input shaft first hydraulic channel 25 respectively; Input shaft hydraulic pressure cavity 23,24 on the input shaft is connected with input shaft second hydraulic channel 26 respectively, and passage 13,14,15,16 is arranged on the output shaft, and there is a pressure chamber 71,72,73,74 this each port hole outside.
Embodiment 2
On embodiment 1 basis, between output shaft flap 41,42 and housing 5, be fixedly connected with nonmetal seal ring 81,82 respectively, fixedlying connected nonmetal seal ring 83,84 on the flap on the shell holder 31,32 with between the input shaft 1.
Embodiment 3
On embodiment 2 basis, the passage 13,14,15,16 on the output shaft distributes and takes asymmetric mode, and wherein passage 15 is 135 ° with passage 16 angles.
Claims (3)
1, a kind of electrohydraulic control, it is characterized in that: output shaft 1 is connected with input shaft 2 Spielpassung, flap 31 on the shell holder, 32 1 ends are fixedly connected on the housing 5, its the other end and output shaft are slidingly connected, output shaft flap 41,42 1 ends are fixed on the input shaft, the other end and housing 5 are slidingly connected, left end cap 61 is connected with the housing bolt, right end cap 62 is connected with the housing bolt, input shaft first hydraulic channel 25, input shaft second hydraulic channel 26 lays respectively on the input shaft, the input shaft hydraulic pressure cavity 21 on this input shaft, 22 are connected with input shaft first hydraulic channel 25 respectively; Input shaft hydraulic pressure cavity 23,24 on the input shaft is connected with input shaft second hydraulic channel 26 respectively, and passage 13,14,15,16 is arranged on the output shaft, and there is a pressure chamber 71,72,73,74 this each port hole outside.
2, a kind of electrohydraulic control according to claim 1, it is characterized in that: between output shaft flap 41,42 and housing 5, be fixedly connected with nonmetal seal ring 81,82 respectively, fixedlying connected nonmetal seal ring 83,84 on the flap on the shell holder 31,32 with between the input shaft 1.
3, a kind of electrohydraulic control according to claim 1 and 2 is characterized in that: the passage 13,14,15,16 on the output shaft distributes and takes asymmetric mode or symmetric mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100107965A CN1324243C (en) | 2004-04-14 | 2004-04-14 | Electro-hydraulic servo-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100107965A CN1324243C (en) | 2004-04-14 | 2004-04-14 | Electro-hydraulic servo-valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563727A true CN1563727A (en) | 2005-01-12 |
| CN1324243C CN1324243C (en) | 2007-07-04 |
Family
ID=34477901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100107965A Expired - Fee Related CN1324243C (en) | 2004-04-14 | 2004-04-14 | Electro-hydraulic servo-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1324243C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612697A (en) * | 2018-06-07 | 2018-10-02 | 江苏钧微动力科技有限公司 | Piece-shape type Spool rotating directly drives electrohydraulic servo valve |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE439950B (en) * | 1980-12-16 | 1985-07-08 | Volvo Ab | DEVICE FOR CONTINUOUS SAFETY OF A TURBOLED DIESEL ENGINE WORKING STATE WITH REGARD TO SPEED AND LOADING |
| DE3246991A1 (en) * | 1982-12-18 | 1984-06-20 | Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum | DEVICE FOR CONTROLLING HIGH PRESSURE LIQUID |
| JP2543511B2 (en) * | 1986-12-27 | 1996-10-16 | 日産自動車株式会社 | Power steering hydraulic control device |
| CN2091983U (en) * | 1991-06-05 | 1992-01-01 | 北方交通大学 | Three-stage electrical fluid servo valve with jet-type force feedback |
| CN2429673Y (en) * | 2000-01-09 | 2001-05-09 | 乐清市人民仪表厂 | Positioner for electric controlled valve |
| CN2429671Y (en) * | 2000-07-13 | 2001-05-09 | 李尚义 | Super-low speed continuous rotary hydraulic servo motor |
| CN2572033Y (en) * | 2002-09-16 | 2003-09-10 | 刘长青 | Two-stage electrohydraulic digital servo valve |
| CN2706614Y (en) * | 2004-04-14 | 2005-06-29 | 路冰宇 | Electrohydraulic servo-valve |
-
2004
- 2004-04-14 CN CNB2004100107965A patent/CN1324243C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612697A (en) * | 2018-06-07 | 2018-10-02 | 江苏钧微动力科技有限公司 | Piece-shape type Spool rotating directly drives electrohydraulic servo valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1324243C (en) | 2007-07-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 |