CN102506194B - Shuttle valve - Google Patents
Shuttle valve Download PDFInfo
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- CN102506194B CN102506194B CN 201110374764 CN201110374764A CN102506194B CN 102506194 B CN102506194 B CN 102506194B CN 201110374764 CN201110374764 CN 201110374764 CN 201110374764 A CN201110374764 A CN 201110374764A CN 102506194 B CN102506194 B CN 102506194B
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- mounting hole
- spring
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- pressure
- pressure core
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Abstract
The invention discloses a shuttle valve. A pressure core body is positioned in a pressure core body mounting hole of a spring base; the spring base is divided into a spring mounting hole and the pressure core body mounting hole which are mutually communicated; a group of oil holes is uniformly distributed on the hole wall of one end of the spring mounting hole of the spring base; inlets of the oil holes are positioned on the end face of the spring mounting hole; outlets of the oil holes are communicated with the spring mounting hole; and the distance from the centers of the oil hole outlets to the end face of the spring mounting hole is more than the travel of the upper surface of a steel ball in the spring mounting hole. A pressure sensor and a signal wire are integrated in the spring base of the shuttle valve; at the same time the group of oil holes is additionally formed on the spring base, so the input pressure of the shuttle valve can be transmitted to the pressure sensor, the pressure is converted into a pressure signal through the pressure sensor, the pressure signal is transmitted to a system control unit; the structure of a hydraulic application system or a pneumatic application system is simplified; the weight of the hydraulic application system or the pneumatic application system is reduced; the connection reliability of the system is improved; and the maintenance cost of a product is reduced.
Description
Technical field
The present invention relates to the hydraulic air brake system, a kind of shuttle valve that specifically uses in the hydraulic air brake system.
Background technique
Shuttle valve commonly used is T shape three-port structure at present, two ends are input interface, the 3rd end is output interface, inside is spool, spool is subjected to the pressure-acting of two input ends, the input end little to pressure moves, and the input end shutoff that pressure is little, and the slit of the high input fluid of pressure between spool and shell flowed out from output terminal.
After other has a kind of pressure difference of shuttle valve requirement two input ends to reach some values, spool could occur to be moved, its common structure feature is, at spool the peak shape structure is arranged, combination by steel ball, spring and spring seat is with the peak shape structure of spring-force driven dual at spool, when incoming pressure during more than or equal to this acting force of the spring, input end shutoff that pressure is little after spool is moved makes the high input fluid of pressure flow out from output terminal through this slit of spool and shell.
Also have a kind of shuttle valve in the prior art, comprise housing, valve base, special-shaped valve pocket, special-shaped peg or spindle, steel ball, annular spring and connecting-tube nozzle.The abnormity peg or spindle is contained in the special-shaped valve pocket.In the circular groove of abnormity valve pocket middle part annular spring is housed, special-shaped valve pocket middle part circular groove bottom even is distributed with the hole of steel ball, and by annular spring steel ball is pressed on the inclined-plane cell wall of special-shaped peg or spindle.The concave curved surface of abnormity peg or spindle circumferential surface and circumferential plane adjacent have formed the circular arc ball-and-socket of curvature with the ring abnormity peg or spindle circumference of the curvature of steel ball.After flowing medium entered valve body, special-shaped peg or spindle overcame resistance and moves to opposite side, and in the sealing that realizes under the effect of flowing medium, annular spring and steel ball between special-shaped peg or spindle and the valve base.The special-shaped peg or spindle of this invention is at radially stress equalization, thereby reduces because the peg or spindle eccentric wear pollutes and lost efficacy, and improves product reliability and life-span.
But above-mentioned shuttle valve is just simple by the pressure selection input source, can not realize the detection to delivery pressure, perhaps need to connect in addition pressure transducer at output terminal, be that shuttle valve and pressure transducer are two discrete parts, such structure also has system weight weight, working service high in cost of production shortcoming when satisfying use.
Summary of the invention
For overcoming the deficiency that system weight is heavy, the working service cost is high that exists in the prior art, the present invention proposes a kind of shuttle valve.
The present invention includes housing, valve base, spool, oil outlet, spring seat, pressure core body, steel ball and spring, the valve base symmetry is installed in the two ends of housing; Oil outlet and spring seat symmetry are installed in the middle part of housing; Spring and steel ball are arranged in the spring mounting hole of spring seat one end, and spool is installed in the housing; Spring seat is connected with housing by outside thread; Described pressure core body is positioned at the pressure core body mounting hole of spring seat; Spring seat is divided into spring mounting hole and pressure core body mounting hole; Connect between spring mounting hole and the pressure core body mounting hole; Hole wall at spring mounting hole one end of spring seat is evenly distributed with one group of oilhole; The entrance of described oilhole is positioned at the end face of described spring mounting hole, and the outlet of oilhole and spring mounting hole connect, and the center of oilhole outlet to the distance of the end face of spring mounting hole greater than the stroke of steel ball upper surface in this spring mounting hole.
There is screw thread at the maximum outside diameter place of plug, and this screw thread matches with the internal thread of pressure core body mounting hole one end; The internal diameter of plug needs the external diameter greater than the wiring harness of pressure core body, and and the pressure core body between without interfering.
The spring seat of the shuttle valve that the present invention proposes is integrated pressure transducer and signaling line, increase by one group of oilhole at spring seat simultaneously, the incoming pressure of shuttle valve can be passed to pressure transducer, again pressure is transformed into pressure signal by pressure transducer and send system control unit to.
The present invention is integrated into pressure transducer in the shuttle valve, and the structure of hydraulic applications system or air pressure application system is simplified to some extent, and weight is reduced, and improves the maintenance cost of system's connection reliability and reduction product.
Description of drawings
The structural representation of Fig. 1 shuttle valve
The structural representation of Fig. 2 spring seat
The structural representation of Fig. 3 pressure core body
The structural representation of Fig. 4 plug.Wherein:
1. housing 2. valve bases 3. spools 4. oil outlets 5. pressure core bodys
6. steel ball 7. springs 8. spring seats 9. seal rings 10. plugs
11. pressure core body mounting hole 12. spring mounting holes 13. oilholes 14. wiring harnesss 15. through holes
Embodiment
Embodiment one
Present embodiment is a kind of KY-104 shuttle valve, comprises housing 1, valve base 2, spool 3, oil outlet 4, pressure core body 5, steel ball 6, spring 7, spring seat 8, seal ring 9 and plug 10.
Housing 1 is the carrier of present embodiment.Valve base 2 symmetries are installed in the two ends of housing 1.Oil outlet 4 and spring seat 8 symmetries are installed in the middle part of housing 1; Spring 7 and steel ball 6 are arranged in the spring mounting hole 12 of spring seat 8 one ends, and pressure core body 5 is positioned at the pressure core body mounting hole 11 of spring seat 8 the other ends, and by plug described pressure core body 5 are fixed in the pressure core body mounting hole 11; Connect by through hole 15 between spring mounting hole 12 and the pressure core body mounting hole 11.Spool 3 is installed in the housing 1.Spring seat 8 is connected with housing 1 by outside thread 14, and spring 7 and steel ball 6 are housed in the endoporus 12 of spring seat 8.
As shown in Figure 2, spring seat 8 is the hollow solid of rotation.There is dividing plate at the endoporus of spring seat 8 middle part, and the endoporus of described spring seat 8 is divided into spring mounting hole 12 and pressure core body mounting hole 11; Spring mounting hole 12 and pressure core body mounting hole 11 connect by through hole 15, are used for the output of shuttle valve is pressed by spring mounting hole, and then are delivered to pressure sensitivity assembly mounting hole.Hole wall at spring mounting hole one end of spring seat 8 is evenly distributed with one group of oilhole 13, and the quantity of described oilhole 13 is determined according to the load of shuttle valve, in the present embodiment, is 6 being distributed in spring mounting hole hole wall upper oil hole 13.The entrance of described oilhole 13 is positioned at the end face of described spring mounting hole, the outlet of oilhole 13 and spring mounting hole 12 connect, and oilholes 13 greater than the stroke of steel ball 6 upper surfaces in this spring mounting hole, are stopped up to avoid steel ball 6 to the distance of the end face of spring mounting hole 12 in the center of oilhole 13 outlet.
As shown in Figure 4, plug 10 is the hollow solid of rotation.The profile of plug 10 is stepped, and there is screw thread at the maximum outside diameter place at this sprue middle part, and this screw thread matches with the internal thread of pressure core body mounting hole 11 1 ends.The internal diameter of plug 10 needs the external diameter greater than the wiring harness of pressure core body 5, and and pressure core body 5 between without interfering.
As shown in Figure 3, pressure core body 5 is the outsourcing member.The end that pressure core body 5 is equipped with seal ring 9 is packed in the pressure core body mounting hole 11.The wiring harness 16 of pressure core body 5 is passed the endoporus of plug 10 and tighten up.Plug 10 and pressure core body mounting hole 11 1 ends are threaded connection.
During work, when the inlet pressure of shuttle valve one end during greater than the component sum of the inlet pressure of the other end and spring 7 pressure, spool 3 moves to the little end of inlet pressure, and with the little pressure end shutoff of shuttle valve, so that flow out from oil outlet 4 in the slit of the inlet fluid of the large end of inlet pressure between housing 1 and spool 3, simultaneously, the pressure of this inlet fluid enters in the spring mounting hole 12 by oilhole 13, and passes to pressure core body 5 through through hole 15; Under the effect of inlet fluid pressure, pressure core body 5 is exported this pressure by wire.
Claims (2)
1. a shuttle valve comprises housing, valve base, spool, oil outlet, spring seat, steel ball and spring, it is characterized in that, also comprises the pressure core body; The valve base symmetry is installed in the two ends of housing; Oil outlet and spring seat are installed in respectively the middle part of housing, and the position of described oil outlet and spring seat is symmetrical; Spring mounting hole and pressure core body mounting hole are arranged on the spring seat; Spring and steel ball are arranged in the spring mounting hole of spring seat one end, and spool is installed in the housing; Spring seat is connected with housing by outside thread; Described pressure core body is positioned at the pressure core body mounting hole of spring seat; Connect between spring mounting hole and the pressure core body mounting hole; Hole wall at spring mounting hole one end of spring seat is evenly distributed with one group of oilhole; The entrance of described oilhole is positioned at the end face of described spring mounting hole, and the outlet of oilhole and spring mounting hole connect, and the center of oilhole outlet to the distance of the end face of spring mounting hole greater than the stroke of steel ball upper surface in this spring mounting hole.
2. a kind of shuttle valve as claimed in claim 1 is characterized in that there is screw thread at the maximum outside diameter place of plug, and this screw thread matches with the internal thread of pressure core body mounting hole one end; The internal diameter of plug needs the external diameter greater than the wiring harness of pressure core body, and and the pressure core body between without interfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110374764 CN102506194B (en) | 2011-11-22 | 2011-11-22 | Shuttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110374764 CN102506194B (en) | 2011-11-22 | 2011-11-22 | Shuttle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102506194A CN102506194A (en) | 2012-06-20 |
| CN102506194B true CN102506194B (en) | 2013-04-24 |
Family
ID=46218309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110374764 Active CN102506194B (en) | 2011-11-22 | 2011-11-22 | Shuttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102506194B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711943A (en) * | 2013-12-21 | 2014-04-09 | 张福江 | Hydraulic sequence valve and control method thereof |
| CN110479130B (en) * | 2019-09-20 | 2024-03-12 | 济南华信自动化工程有限公司 | Automatic gas-liquid control fluid proportioning device and fluid mixing system |
| CN114508609A (en) * | 2022-01-27 | 2022-05-17 | 西安航空制动科技有限公司 | Pluggable reversing valve for aircraft brake control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050028864A1 (en) * | 2003-08-08 | 2005-02-10 | Gilmore Valve Co., Ltd. | Chatter resistant shuttle valve |
| WO2007084214A1 (en) * | 2006-01-20 | 2007-07-26 | Smiths Medical Asd, Inc. | Shuttle valve |
| CN201502746U (en) * | 2009-05-07 | 2010-06-09 | 宁波市博尔法液压有限公司 | Steel ball-type shuttle valve with threaded connection |
| CN102003425A (en) * | 2010-11-29 | 2011-04-06 | 广西玉柴重工有限公司 | Priority valve for hydraulic excavator |
-
2011
- 2011-11-22 CN CN 201110374764 patent/CN102506194B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050028864A1 (en) * | 2003-08-08 | 2005-02-10 | Gilmore Valve Co., Ltd. | Chatter resistant shuttle valve |
| WO2007084214A1 (en) * | 2006-01-20 | 2007-07-26 | Smiths Medical Asd, Inc. | Shuttle valve |
| CN201502746U (en) * | 2009-05-07 | 2010-06-09 | 宁波市博尔法液压有限公司 | Steel ball-type shuttle valve with threaded connection |
| CN102003425A (en) * | 2010-11-29 | 2011-04-06 | 广西玉柴重工有限公司 | Priority valve for hydraulic excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102506194A (en) | 2012-06-20 |
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