CN102996551A - Two-position three-way pneumatically-controlled hydraulic reversing device - Google Patents
Two-position three-way pneumatically-controlled hydraulic reversing device Download PDFInfo
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- CN102996551A CN102996551A CN2012104679328A CN201210467932A CN102996551A CN 102996551 A CN102996551 A CN 102996551A CN 2012104679328 A CN2012104679328 A CN 2012104679328A CN 201210467932 A CN201210467932 A CN 201210467932A CN 102996551 A CN102996551 A CN 102996551A
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- oil outlet
- valve core
- changeover valve
- oil
- oil inlet
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Abstract
The invention relates to a reversing control valve for the tipping bucket oil cylinder of a dump truck, wherein a new structure and a new control mode are designed, the original hydraulic control mode is removed, and the new control mode is realized by the own pneumatic system of the dump truck, thus simplifying a control system, and reducing the production cost of a manufacturer for dump trucks. The valve has the characteristics of being low in flow resistance, small in volume, resistant to high pressure, strong in anti-pollution capacity, simple in structure, long in service life, and the like, and is mainly suitable for occasions with bad working environments, such as large mining dump trucks.
Description
One, technical field
The present invention relates to dumping car dump ram reversing control valve, adopt air pressure to control this valve, working medium is hydraulic oil.
Two, technical background
Two-bit triplet hydraulic control hydraulicdirectional control valve is often adopted in the work of tradition dumping car control dump ram, because control mode adopts hydraulic control, control system need dispose a hydraulic pilot pump pilot pressure is provided, cost is higher, it is large to take up room, for simplied system structure, my company furthers investigate, improves this valve, produce the two-bit triplet hydraulicdirectional control valve of developing pneumatic control, the pilot pressure of control system provides pressure by the pneumatic system that dumping car carries, simplify control system, reduced the cost of production of dumping car manufacturer.This product is used in the two-bit triplet selector valve on the dumping car, and it is little, simple in structure, multiple functional to have a volume, operates the characteristics such as comfortable.
Three, summary of the invention
This valve body 8 has an oil inlet P, two oil outlet R, M, gas inlet and outlet and inner passage, has in addition clear opening in the valve body, and this clear opening has the different two-layer configuration of diameter.Reciprocating changeover valve core 5 is arranged in the valve, and this changeover valve core has the different two-layer configuration of diameter, and large end is equipped with seal ring.Spring 4, position limit socket 3, end cap 1, back-up ring 2 are arranged in the large end of clear opening, seat 10, air filter 13, back-up ring 12 are arranged in the small end, it is characterized in that spring 4, position limit socket 3, end cap 1 are loaded between the large end of changeover valve core and the back-up ring 2, seat 10, air filter 13 are loaded between changeover valve core small end and the back-up ring 12.
Four, embodiment
Changeover valve core is arranged in the spool chamber, and oil inlet P is positioned at a side of spool chamber, and described oil outlet M and oil outlet R are positioned at the opposite side of spool chamber, and described oil outlet M and oil outlet R communicate with oil inlet hole P.Control gas is entered by the gas control mouth, promotes changeover valve core 5 commutations, oil inlet P and oil outlet M conducting, and oil inlet P and oil outlet R cut off.Cutting-off controlling gas, changeover valve core 5 resets under the effect of spring 4, oil inlet P and oil outlet R conducting, oil inlet P and oil outlet M cut off.
Five, embodiment
Changeover valve core is arranged in the spool chamber, and oil inlet P is positioned at a side of spool chamber, and described oil outlet M and oil outlet R are positioned at the opposite side of spool chamber, and described oil outlet M and oil outlet R communicate with oil inlet hole P.Control gas is entered by the gas control mouth, promotes changeover valve core 5 commutations, oil inlet P and oil outlet M conducting, and oil inlet P and oil outlet R cut off.Cutting-off controlling gas, changeover valve core 5 resets under the effect of spring 4, oil inlet P and oil outlet R conducting, oil inlet P and oil outlet M cut off.
Description of drawings:
Fig. 1 is two-bit triplet pneumatic control hydraulic reversing valve transverse cross-sectional view
Fig. 2 is two-bit triplet pneumatic control hydraulic reversing valve functional symbol figure
The 1-end cap; 2,12-back-up ring; The 3-position limit socket; The 4-spring; The 5-spool; 6,7,9,11-seal ring; The 8-valve body; The 13-seat
Claims (2)
1. the reversing arrangement of a dumping car, it comprises two-bit triplet Pneumatic and hydraulic valve body, reciprocating changeover valve core and control gear, it is characterized in that having in the valve body oil inlet P, oil outlet M, oil outlet R, gas inlet and outlet and clear opening; Described clear opening has the different two-layer configuration of diameter; Described changeover valve core is arranged in the spool chamber, and described changeover valve core has the different two-layer configuration of diameter, and large end is equipped with seal ring; Described oil inlet P is positioned at a side of spool chamber, and described oil outlet M and oil outlet R are positioned at the opposite side of spool chamber, and described oil outlet M and oil outlet R communicate with oil inlet hole P; The control gear control gas of described reversing arrangement is entered by the gas control mouth, promotes the changeover valve core commutation, oil inlet P and oil outlet M conducting, and oil inlet P and oil outlet R cut off; Described control gear cutting-off controlling gas, changeover valve core 5 resets under the effect of spring 4, oil inlet P and oil outlet R conducting, oil inlet P and oil outlet M cut off.
2. two-bit triplet pneumatic control hydraulic reversing valve according to claim 1, in the large end of clear opening spring, position limit socket, end cap, back-up ring are arranged, seat, air filter, back-up ring are arranged in the small end, it is characterized in that spring, position limit socket, end cap are loaded between the large end of changeover valve core and the back-up ring, seat, air filter are loaded between changeover valve core small end and the back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104679328A CN102996551A (en) | 2012-11-19 | 2012-11-19 | Two-position three-way pneumatically-controlled hydraulic reversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104679328A CN102996551A (en) | 2012-11-19 | 2012-11-19 | Two-position three-way pneumatically-controlled hydraulic reversing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996551A true CN102996551A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104679328A Pending CN102996551A (en) | 2012-11-19 | 2012-11-19 | Two-position three-way pneumatically-controlled hydraulic reversing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996551A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727086A (en) * | 2014-01-20 | 2014-04-16 | 南京工程学院 | Hydraulically-controlled proportional valve |
| CN104454725A (en) * | 2014-11-18 | 2015-03-25 | 宁波长壁流体动力科技有限公司 | Reversing valve element |
| CN106678104A (en) * | 2015-11-06 | 2017-05-17 | 中国航空工业第六八研究所 | Anti-pollution retaining logic control valve |
| CN107830007A (en) * | 2017-12-05 | 2018-03-23 | 烟台华特液压机械有限公司 | A kind of quick switching hydraulic switch valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB829785A (en) * | 1955-04-20 | 1960-03-09 | Cornelius De Vries | Control valve for a pneumatic conduit system |
| US4240467A (en) * | 1979-01-15 | 1980-12-23 | Blatt L Douglas | Valve assembly |
| US4254798A (en) * | 1978-03-23 | 1981-03-10 | Herion-Werke Kg | Directional control valve |
| JPS5874980A (en) * | 1981-10-02 | 1983-05-06 | ジエイ・エツチ・フエナ−・アンド・カンパニ−・リミテツド | Pneumatic driving machine controller |
| CN201100454Y (en) * | 2007-08-13 | 2008-08-13 | 余旭灿 | Pneumatic mechanical valve |
| CN201723781U (en) * | 2010-07-08 | 2011-01-26 | 宁波光华气动工业有限公司 | Novel hand-pulled valve |
-
2012
- 2012-11-19 CN CN2012104679328A patent/CN102996551A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB829785A (en) * | 1955-04-20 | 1960-03-09 | Cornelius De Vries | Control valve for a pneumatic conduit system |
| US4254798A (en) * | 1978-03-23 | 1981-03-10 | Herion-Werke Kg | Directional control valve |
| US4240467A (en) * | 1979-01-15 | 1980-12-23 | Blatt L Douglas | Valve assembly |
| JPS5874980A (en) * | 1981-10-02 | 1983-05-06 | ジエイ・エツチ・フエナ−・アンド・カンパニ−・リミテツド | Pneumatic driving machine controller |
| CN201100454Y (en) * | 2007-08-13 | 2008-08-13 | 余旭灿 | Pneumatic mechanical valve |
| CN201723781U (en) * | 2010-07-08 | 2011-01-26 | 宁波光华气动工业有限公司 | Novel hand-pulled valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727086A (en) * | 2014-01-20 | 2014-04-16 | 南京工程学院 | Hydraulically-controlled proportional valve |
| CN103727086B (en) * | 2014-01-20 | 2016-02-10 | 南京工程学院 | A kind of Hydraulically-controproportional proportional valve |
| CN104454725A (en) * | 2014-11-18 | 2015-03-25 | 宁波长壁流体动力科技有限公司 | Reversing valve element |
| CN106678104A (en) * | 2015-11-06 | 2017-05-17 | 中国航空工业第六八研究所 | Anti-pollution retaining logic control valve |
| CN107830007A (en) * | 2017-12-05 | 2018-03-23 | 烟台华特液压机械有限公司 | A kind of quick switching hydraulic switch valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |