CN201650911U - Two-position three-way pneumatic reversing valve - Google Patents
Two-position three-way pneumatic reversing valve Download PDFInfo
- Publication number
- CN201650911U CN201650911U CN2010201776962U CN201020177696U CN201650911U CN 201650911 U CN201650911 U CN 201650911U CN 2010201776962 U CN2010201776962 U CN 2010201776962U CN 201020177696 U CN201020177696 U CN 201020177696U CN 201650911 U CN201650911 U CN 201650911U
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- Prior art keywords
- valve
- control
- reversing
- cylinder
- way pneumatic
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- Expired - Fee Related
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Abstract
The utility model provides a two-position three-way pneumatic reversing valve, belonging to the technical field of design and manufacture of the two-position three-way pneumatic reversing valve used for high pressure water. The upper part of a valve body is provided with a cylinder. The two-position three-way pneumatic reversing valve is an important control component in a rolled steel high pressure water descaling system, and is served as a pilot control valve of various functional main valves to be usually matched with a throttle stop valve for use. The two-position three-way pneumatic reversing valve adopts a pilot valve to control an oil controlled valve to realize reversing. While the pilot control replaces electric control with pneumatic control, namely replaces an electromagnetic valve with the cylinder to control the reversing of the oil controlled valve. By adopting a membrane cylinder, the cylinder has advantages of short stroke, large push, sensitive response, reliable control and long service life. Simultaneously, the design to the structure of the oil controlled valve especially to main parts such as a valve core, a valve sleeve, a valve body and the like is optimized, so that the structure is simplified, the processing and assembling difficulty are reduced, and the special processing to the surfaces of the parts is carried out, so that the reversing of the oil controlled valve is flexible and reliable, and the service life of the oil controlled valve is greatly prolonged. Therefore, the two-position three-way pneumatic reversing valve not only can achieve the functions of the main valves, but also prolong the normal operation cycle of the overall system accordingly, and solve the problem of the products.
Description
Technical field
The utility model belongs to design and the manufacturing technology field of high pressure water with two position three way directional control valve.
Background technique
Each steel mill generally uses electromagnetic distribution device or two-position three way electro-hydraulic reversing valve to realize the control of surging of each function main valve in the high-pressure water descaling system of rolled shape at present.Wherein the electromagnetic distribution device is that electromagnet utilizes lever principle to realize commutation function by driving spool, and it is frequent or in running order for a long time to commutate during because of its work, and electromagnet occurs damaging because of overload easily.Electro-hydraulic reversing valve then is the commutation function that realizes hydraulic operated valve by two-position three way magnetic valve, though it is better than the electromagnetic distribution device in some aspects, exists volume big equally, complex structure, manufacture difficulty big and inconvenient maintenance and short shortcoming of cycle.Therefore present employed these two kinds of selector valves all cause the phenomenon of the frequent Control Failure of surging of each main valve in the system easily, make main valve normally not open or to close, the function that causes satisfying each main valve realizes, and then influences the normal operation of whole high-pressure water descaling system.
Summary of the invention
At above-mentioned situation, the purpose of this utility model provides a kind of simple in structure, and the two-position three way air operated reversing valve of low cost of manufacture and long service life is to solve the problem that existing product exists.
Structure of the present utility model is as shown in drawings: the top at valve body has cylinder.At the top of valve body one connecting rod is arranged.A top is arranged at the bottom in connecting rod.Cylinder push-rod inserts the top.Suit one gland on connecting rod.One adapter sleeve is arranged at the bottom in the top.In the adapter sleeve bottom one valve core housing is arranged.One upper sealing ring is arranged between adapter sleeve and valve core housing.Outside suit one upper guide bush at valve core housing.One middle guide pin bushing is arranged in the valve core housing bottom.In middle guide pin bushing, have spool.Have guide pin bushing down in the bottom of middle guide pin bushing.In the guide pin bushing core hole spring is being arranged down.Top at spring has lower sealing ring.On a side of valve body, have water intake, water outlet and commutation mouth.The utility model is the important control parts in the rolled shape high-pressure water descaling system, pilot-actuated valve as various function main valves becomes to close use with throttling stop valve usually, system high pressure water is entered by water intake all the time, when cylinder is not worked, pressure and spring that high pressure water is born in the valve core housing lower end surface promote spool upwards jointly, the water outlet closure, water intake and commutation mouthful conducting.This moment, the valve core of main valve epicoele of controlling was subjected to high pressure water pressure and to promote main valve plug downward, and main valve is closed.When cylinder operation, cylinder push-rod stretches out, and drives to come directly towards on the adapter sleeve that is pressed in the spool upper end, and overcome high pressure water and spring thrust and corresponding surface friction drag to spool, spool is pushed to the water intake closure downwards, and this moment, water outlet was opened, commutation mouth and water outlet conducting.And the main valve plug epicoele because of with water outlet conducting pressure release, main valve plug is stressed to be lifted, main valve open.
The utility model has adopted pilot valve control hydraulic operated valve to realize the structural type of commutation function, but that guide's control has been replaced by gas control is automatically controlled, promptly replaces solenoid valve to control the commutation of hydraulic operated valve with cylinder.What cylinder adopted is diaphragm type cylinder, has the stroke weak point, and thrust is big, is quick on the draw, and control is reliable, the characteristics of long service life.Simultaneously especially major parts such as spool, valve pocket and valve body have been carried out optimal design at the structure of hydraulic operated valve, both simplified the structure, processing and assembling difficulty have been reduced again, and part surface carried out special processing, make the hydraulic operated valve flexibility and reliability that not only commutates, and improved greatly its working life.Therefore the utility model has guaranteed that not only the function of the main valve of controlling realizes, and has correspondingly prolonged the normal operation period of whole system.Solved the problem that existing product exists.
Description of drawings
Accompanying drawing is the utility model structural representation
Guide pin bushing under the guide pin bushing 12-valve body 13-lower sealing ring 14-spring 15-in the middle of the 4-screw 5-adapter sleeve 6-gland 7-upper sealing ring 8-valve core housing 9-upper guide bush 10-spool 11-of 1-cylinder 2-connecting rod 3-top
P-water intake, T-water outlet, A-commutate mouthful
Embodiment
Structure of the present utility model is as shown in drawings: have cylinder 1 on the top of valve body 12.One connecting rod 2 is arranged at the top of valve body.A top 3 is arranged at the bottom in connecting rod.Cylinder push-rod inserts the top.Suit one gland 6 on connecting rod.Gland is fixed on the valve body by screw 4.One adapter sleeve 5 is arranged at the bottom in the top.One valve core housing 8 is arranged in the adapter sleeve bottom.One upper sealing ring 7 is arranged between adapter sleeve and valve core housing.Outside suit one upper guide bush 9 at valve core housing.One middle guide pin bushing 11 is arranged in the valve core housing bottom.In middle guide pin bushing, have spool 10.Have guide pin bushing 15 down in the bottom of middle guide pin bushing.In the guide pin bushing core hole spring 14 is being arranged down.Have lower sealing ring 13 on the top of spring.On a side of valve body, have water intake P, water outlet T and commutation mouthful A.
Claims (1)
- FF. the two-position three way air operated reversing valve is characterized in that; Have cylinder (1) on the top of valve body (12), one connecting rod (2) is arranged at the top of valve body, a top (3) is arranged at the bottom in connecting rod, suit one gland (6) on connecting rod, one adapter sleeve (5) is arranged at the bottom in the top, one valve core housing (8) is arranged in the adapter sleeve bottom, one upper sealing ring (7) is arranged between adapter sleeve and valve core housing, outside suit one upper guide bush (9) at valve core housing, in the valve core housing bottom one middle guide pin bushing (11) is arranged, in middle guide pin bushing, have spool (10), have guide pin bushing (15) down in the bottom of middle guide pin bushing, in the guide pin bushing core hole spring (14) being arranged down, have lower sealing ring (13) on the top of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201776962U CN201650911U (en) | 2010-04-30 | 2010-04-30 | Two-position three-way pneumatic reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201776962U CN201650911U (en) | 2010-04-30 | 2010-04-30 | Two-position three-way pneumatic reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650911U true CN201650911U (en) | 2010-11-24 |
Family
ID=43116146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201776962U Expired - Fee Related CN201650911U (en) | 2010-04-30 | 2010-04-30 | Two-position three-way pneumatic reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650911U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180017A (en) * | 2014-09-05 | 2014-12-03 | 黄培华 | Guide supporting sleeve type limit gas valve |
| CN107477210A (en) * | 2017-09-21 | 2017-12-15 | 陈银 | A kind of novel two-position three-way reversal valve |
| CN109488296A (en) * | 2019-01-03 | 2019-03-19 | 天地科技股份有限公司上海分公司 | External spraying auto-increasing pressure and system built in coalcutter |
-
2010
- 2010-04-30 CN CN2010201776962U patent/CN201650911U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180017A (en) * | 2014-09-05 | 2014-12-03 | 黄培华 | Guide supporting sleeve type limit gas valve |
| CN104180017B (en) * | 2014-09-05 | 2016-08-10 | 黄培华 | Guide support shell type limiting valve |
| CN107477210A (en) * | 2017-09-21 | 2017-12-15 | 陈银 | A kind of novel two-position three-way reversal valve |
| CN109488296A (en) * | 2019-01-03 | 2019-03-19 | 天地科技股份有限公司上海分公司 | External spraying auto-increasing pressure and system built in coalcutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101124 Termination date: 20130430 |