CN103671331A - Pressure oil film delivery valve block - Google Patents
Pressure oil film delivery valve block Download PDFInfo
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- CN103671331A CN103671331A CN201310745693.2A CN201310745693A CN103671331A CN 103671331 A CN103671331 A CN 103671331A CN 201310745693 A CN201310745693 A CN 201310745693A CN 103671331 A CN103671331 A CN 103671331A
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Abstract
The invention provides a pressure oil film delivery valve block which comprises a valve body with a valve cavity. A valve element is arranged in the valve cavity. The valve cavity is separated into a first chamber, a second chamber, a third chamber, a fourth chamber and a fifth chamber through the valve element. A first spring is arranged in the first chamber. A second spring is arranged in the fifth chamber. The valve body is provided with a first oil port communicated with the second chamber, a second oil port communicated with the third chamber, a third oil port communicated with the fourth chamber, and a fourth oil port communicated with the fifth chamber. A control cavity is arranged in the valve body, and a first valve sleeve is arranged in the control cavity. The control cavity is separated into a sixth chamber and a seventh chamber through the first valve sleeve. The sixth chamber is communicated with the first chamber. The seventh chamber is communicated with the fifth chamber. One end, close to the sixth chamber, of the first valve sleeve is an open end which is provided with a damping hole. The first valve sleeve is communicated with the third chamber. Through the scheme, the position of the valve element and the position of the first valve sleeve are changed so that sealing oil can form a sealing oil film at a position to be sealed, and the good sealing effect can be achieved.
Description
Technical field
The present invention relates to hydrovalve technical field, relate in particular to a kind of pressure film delivery valve piece.
Background technique
Hydrauservo System because specific power is large, speed-regulating range width and moment ratio of inertias advantages of higher, in the highi degree of accuracy that is widely used control field, as fields such as national defence, medical treatment and Aero-Space.Hydraulic actuator is the important component part of Hydrauservo System, is the link of carrying out Hydrauservo System task.From forms of motion, hydraulic actuator can be divided into linear type and swing type, and the former exports straight-line displacement, and the latter exports angle of swing.The sealability of hydraulic actuator has very important impact to whole system, and its sealability index is mainly leakage rate, frictional force, friction torque and reliability etc.The increase of leakage rate and frictional force, friction torque can cause the decline of Hydrauservo System dynamic characteristic, stiffness degradation, damping ratio to increase, and in low cruise situation, increases creeping phenomenon; The normal work of reliability effect whole system of sealing, personal security even, as the seal failure meeting in the hydraulic actuator on aircraft causes causing air crash etc.
At present, hydraulic actuator both domestic and external adopts the seal form of contact-type as hydraulic pressure pendulum Ye Mada, the leakage rate that wherein adopts the sealing of contact-type to be caused by sealing is little, but frictional force, friction torque are large, and Sealing reliability is low, cause the reliability of hydraulic pressure pendulum Ye Mada low.This just urgently needs a kind of way of realization, and the frictional force, the friction torque that reduce hydraulic pressure pendulum Ye Mada are little, and improves the reliability of hydraulic pressure pendulum Ye Mada.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to the basic comprehension about some aspect of the present invention is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present invention.It is not that intention is determined key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only that the form of simplifying provides some concept, usings this as the preorder in greater detail of discussing after a while.
The invention provides a kind of pressure film delivery valve piece, with breaking away from contact seal so that hydraulic pressure is put Ye Mada, realize noncontact seal, by regulating the pressure of seal oil, so that seal oil can form at place to be sealed sealing oil film, realize the good sealing effect of hydraulic pressure pendulum Ye Mada, and reduced frictional force, the friction torque of hydraulic pressure pendulum Ye Mada, improved the reliability of hydraulic pressure pendulum Ye Mada.
The invention provides a kind of pressure film delivery valve piece, comprise the valve body with valve pocket, in described valve pocket, be provided with spool, described spool is divided into five independently chambers by described valve pocket, five independently described chamber be followed successively by the first chamber, the second chamber, the 3rd chamber, the 4th chamber and the 5th chamber;
Described the first chamber inner pressure is equipped with the first spring, and described the 5th chamber inner pressure is equipped with the second spring;
On described valve body, be respectively arranged with the first hydraulic fluid port being communicated with described the second chamber, the second hydraulic fluid port being communicated with described the 3rd chamber, the 3rd hydraulic fluid port being communicated with described the 4th chamber and the 4th hydraulic fluid port being communicated with described the 5th chamber;
In described valve body, be provided with control chamber, in described control chamber, slidably connect the first valve pocket, described the first valve pocket is divided into the 6th separate chamber and the 7th chamber by described control chamber, and described the 6th chamber is communicated with described the first chamber, and described the 7th chamber is communicated with described the 5th chamber;
Described the first valve pocket is open end near one end of described the 6th chamber, and one end of close described the 7th chamber is closed end, and described open end is provided with damping hole, and described the first valve pocket is communicated with described the 3rd chamber.
Such scheme provided by the invention, with breaking away from contact seal so that hydraulic pressure is put Ye Mada, realize noncontact seal, by changing the position of spool and the first valve pocket, regulate the pressure of seal oil, so that seal oil can form sealing oil film at place to be sealed, realize the good sealing effect of hydraulic pressure pendulum Ye Mada, and reduced frictional force, friction torque that hydraulic pressure is put Ye Mada, improved the reliability of hydraulic pressure pendulum Ye Mada.
Accompanying drawing explanation
Below with reference to the accompanying drawings illustrate embodiments of the invention, can understand more easily above and other objects, features and advantages of the present invention.Parts in accompanying drawing are just in order to illustrate principle of the present invention.In the accompanying drawings, same or similar technical characteristics or parts will adopt same or similar reference character to represent.
The sectional view of the pressure film delivery valve piece that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Embodiments of the invention are described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present invention or a kind of mode of execution and feature can combine with element and feature shown in one or more other accompanying drawing or mode of execution.It should be noted that for purposes of clarity, in accompanying drawing and explanation, omitted expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and processing.
The sectional view of the pressure film delivery valve piece that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, the pressure film delivery valve piece that the embodiment of the present invention provides, comprise the valve body 3 with valve pocket, in valve pocket, be provided with spool 22, spool 22 is divided into five independently chambers by valve pocket, five independently chamber be followed successively by the first chamber, the second chamber 19, the 3rd chamber 17, the 4th chamber 14 and the 5th chamber; The first chamber inner pressure is equipped with the first spring 23, the five chamber inner pressures the second spring 12 is housed; On valve body 3, be respectively arranged with the first hydraulic fluid port 20 being communicated with the second chamber 19, the second hydraulic fluid port 18 being communicated with the 3rd chamber 17, the 3rd hydraulic fluid port 15 being communicated with the 4th chamber 14 and the 4th hydraulic fluid port 13 being communicated with the 5th chamber; In valve body 3, be provided with control chamber, slidably connect that the first valve pocket 7, the first valve pockets 7 are divided into the 6th separate chamber 2 by control chamber and the 7th chamber 8, the six chambers 6 are communicated with the first chamber in control chamber, the 7th chamber 8 is communicated with the 5th chamber; The first valve pocket 7 is open end near one end of the 6th chamber 6, and one end of close the 7th chamber 8 is closed end, and open end is provided with damping hole 4, the first valve pockets 7 and is communicated with the 3rd chamber 17.
In actual use, valve piece 3 can be rectangular structure, can certainly be arranged to according to actual needs other shape.Spool 22 can slide in valve pocket, by adjusting the decrement of the first spring 23 and the second spring 12, opens and controls the position of spool 22 in valve pocket, to control the pressure of seal oil.By first valve pocket 7 that can slide is set in control chamber, with so that each valve chamber internal pressure stable in valve pocket.Wherein, spool 22 can comprise a valve shaft, is fixedly connected with in turn four valve discs on this valve shaft, by these four valve discs, valve pocket is divided into five independently chambers.Also, five chamber axially distributing side by side along described spool independently.Wherein, damping hole 4 is the holes that diameter is less, and its aperture is less than the diameter of open end.
Such scheme provided by the invention, with breaking away from contact seal so that hydraulic pressure is put Ye Mada, realize noncontact seal, by changing the position of spool 22 and the first valve pocket 7, regulate the pressure of seal oil, so that seal oil can form sealing oil film at place to be sealed, realize the good sealing effect of hydraulic pressure pendulum Ye Mada, and reduced frictional force, friction torque that hydraulic pressure is put Ye Mada, improved the reliability of hydraulic pressure pendulum Ye Mada.
Further, in order to be relatively convenient to regulate the extending amount of the first spring 23 and the second spring 12, and then control the pressure of the seal oil of this pressure film delivery valve piece output, valve pocket adopts through-hole form, be the first through hole, the two ends of the first through hole are the axial adjustable spool plug 10 that is connected with all, as referred to herein is axially the axial of the first valve pocket 7, spool 22 accordingly, two spool plugs 10 are all tightly connected with the first through hole, the first spring 23 press-fits between one spool plug and spool 22, and the second spring presses 12 to be loaded between another spool plug and spool 22.By regulating spool plug 10, enter into the decrement that length in the first through hole is controlled the first spring 23, the second spring 12 accordingly.
Further, for the ease of processing, keep in repair and reducing user cost, in the first through hole, coincide and be fitted with the second valve pocket 21, in the endoporus appearance wearing and tearing of the second valve pocket 21, can not normally use to be, only need to change second valve pocket 21, do not need whole valve body 3 to scrap.Two spool plugs 10 are bolted in respectively the two ends of the second valve pocket 21, the middle part of the second valve pocket 21 is provided with annular groove 16, the width of annular groove 16 equals the second chamber 19 to the distance between the 4th chamber 14, and the second chamber 19 as referred to herein to the distance between the 4th chamber 14 is the distance between the second chamber 19 and the 4th chamber 14 opposing end surfaces.By this annular groove 16, after spool 22 moves, the second valve chamber 19 or the 4th valve chamber 14 are communicated with the first valve pocket 7, correspondingly make the second valve chamber 19 or the 4th valve chamber 14 be communicated with the 6th valve chamber 2, to regulate accordingly oil pressure, make the pressure stability of the seal oil of this pressure film delivery valve piece output.
Further, control chamber is similarly through-hole structure, is the second through hole, and the two ends of the second through hole all axial adjustable 1, two valve pocket plug 1 of valve pocket plug that is connected with are all tightly connected with the second through hole, adopt this mode simple in structure, and reliability is high.
Further, in order reducing, to safeguard and user cost, in the second through hole, to coincide and be fitted with the two ends that the 3rd valve pocket 9, two valve pocket plugs 1 are bolted in respectively the 3rd valve pocket 9.When the 3rd valve pocket 9 occurs that wearing and tearing can not normally be used, only need to change one, and do not need whole valve body 3 to scrap.
Further, the two ends of the first valve pocket 7 are provided with between annular boss 5, two annular boss 5 and form oil groove 6, and the bottom of oil groove 6 is provided with the hole that connects the first valve pocket 7 sidewalls, and the first valve pocket 7 is communicated with the 3rd chamber 17 by hole and oil groove 6.By oil groove 16 is set, after the first valve pocket 7 is moved, the first valve pocket 7 still can be communicated with the 3rd valve chamber 17, controls the pressure stability of the seal oil of this pressure film delivery valve piece output.
Finally it should be noted that: above embodiment only, in order to technological scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technological scheme that still can record aforementioned each embodiment is modified, or part technical characteristics is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (8)
1. a pressure film delivery valve piece, comprise the valve body with valve pocket, in described valve pocket, be provided with spool, it is characterized in that, described spool is divided into five independently chambers by described valve pocket, five independently described chamber be followed successively by the first chamber, the second chamber, the 3rd chamber, the 4th chamber and the 5th chamber;
Described the first chamber inner pressure is equipped with the first spring, and described the 5th chamber inner pressure is equipped with the second spring;
On described valve body, be respectively arranged with the first hydraulic fluid port being communicated with described the second chamber, the second hydraulic fluid port being communicated with described the 3rd chamber, the 3rd hydraulic fluid port being communicated with described the 4th chamber and the 4th hydraulic fluid port being communicated with described the 5th chamber;
In described valve body, be provided with control chamber, in described control chamber, slidably connect the first valve pocket, described the first valve pocket is divided into the 6th separate chamber and the 7th chamber by described control chamber, and described the 6th chamber is communicated with described the first chamber, and described the 7th chamber is communicated with described the 5th chamber;
Described the first valve pocket is open end near one end of described the 6th chamber, and one end of close described the 7th chamber is closed end, and described open end is provided with damping hole, and described the first valve pocket is communicated with described the 3rd chamber.
2. pressure film delivery valve piece according to claim 1, it is characterized in that, described valve pocket is the first through hole, the two ends of described the first through hole are the axial adjustable spool plug that is connected with all, two described spool plugs are all tightly connected with described the first through hole, described the first pressure mounting of the spring is between spool plug described in one and described spool, and described the second pressure mounting of the spring is between spool plug described in another and described spool.
3. pressure film delivery valve piece according to claim 2, it is characterized in that, in described the first through hole, coincide and be fitted with the second valve pocket, two described spool plugs are bolted in respectively the two ends of described the second valve pocket, the middle part of described the second valve pocket is provided with annular groove, and the width of described annular groove equals the distance between the second chamber to the four chambers.
4. according to the pressure film delivery valve piece described in claim 1-3 any one, it is characterized in that, described control chamber is the second through hole, and the two ends of described the second through hole are the axial adjustable valve pocket plug that is connected with all, and two described valve pocket plugs are all tightly connected with described the second through hole.
5. pressure film delivery valve piece according to claim 4, is characterized in that, in described the second through hole, coincide and is fitted with the 3rd valve pocket, and two described valve pocket plugs are bolted in respectively the two ends of described the 3rd valve pocket.
6. according to the pressure film delivery valve piece described in claim 1-3 any one, it is characterized in that, the two ends of described the first valve pocket are provided with annular boss, between two annular boss, form oil groove, the bottom of described oil groove is provided with the hole that connects described the first sleeve side wall, and described the first valve pocket is communicated with described the 3rd chamber by described hole and described oil groove.
7. according to the pressure film delivery valve piece described in claim 1-3 any one, it is characterized in that, spool comprises a valve shaft, is fixedly connected with in turn four valve discs on described valve shaft, by these four valve discs, valve pocket is divided into five independently described chambers.
8. according to the pressure film delivery valve piece described in claim 1-3 any one, it is characterized in that five described chamber axially distributing side by side along described spool independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745693.2A CN103671331B (en) | 2013-12-30 | 2013-12-30 | Pressure oil film delivery valve block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745693.2A CN103671331B (en) | 2013-12-30 | 2013-12-30 | Pressure oil film delivery valve block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671331A true CN103671331A (en) | 2014-03-26 |
| CN103671331B CN103671331B (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310745693.2A Expired - Fee Related CN103671331B (en) | 2013-12-30 | 2013-12-30 | Pressure oil film delivery valve block |
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| Country | Link |
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| CN (1) | CN103671331B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958552A (en) * | 2017-04-22 | 2017-07-18 | 新乡市新倍增自动化设备有限公司 | A kind of Electrical hydrostatic actuator return oil pressure valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1407801A (en) * | 1971-10-28 | 1975-09-24 | Dowty Mining Equipment Ltd | Hydraulic apparatus |
| EP1580438A2 (en) * | 2004-03-26 | 2005-09-28 | Husco International, Inc. | Hydraulic valve section with reduced bore distortion |
| CN101561001A (en) * | 2009-05-12 | 2009-10-21 | 同济大学 | Electro-hydraulic servo valve with damping throttling device and liquid container |
| CN101776097A (en) * | 2009-12-09 | 2010-07-14 | 中冶南方工程技术有限公司 | Special three-way electro hydraulic servo valve for down-pressing system of rolling mill |
-
2013
- 2013-12-30 CN CN201310745693.2A patent/CN103671331B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1407801A (en) * | 1971-10-28 | 1975-09-24 | Dowty Mining Equipment Ltd | Hydraulic apparatus |
| EP1580438A2 (en) * | 2004-03-26 | 2005-09-28 | Husco International, Inc. | Hydraulic valve section with reduced bore distortion |
| EP1580438A3 (en) * | 2004-03-26 | 2009-04-08 | Husco International, Inc. | Hydraulic valve section with reduced bore distortion |
| CN101561001A (en) * | 2009-05-12 | 2009-10-21 | 同济大学 | Electro-hydraulic servo valve with damping throttling device and liquid container |
| CN101776097A (en) * | 2009-12-09 | 2010-07-14 | 中冶南方工程技术有限公司 | Special three-way electro hydraulic servo valve for down-pressing system of rolling mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958552A (en) * | 2017-04-22 | 2017-07-18 | 新乡市新倍增自动化设备有限公司 | A kind of Electrical hydrostatic actuator return oil pressure valve |
| CN106958552B (en) * | 2017-04-22 | 2018-04-13 | 新乡市新倍增自动化设备有限公司 | A kind of Electrical hydrostatic actuator return oil pressure valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671331B (en) | 2016-04-06 |
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Granted publication date: 20160406 Termination date: 20181230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |