CN105443803A - Pilot reversing valve - Google Patents
Pilot reversing valve Download PDFInfo
- Publication number
- CN105443803A CN105443803A CN201511031047.5A CN201511031047A CN105443803A CN 105443803 A CN105443803 A CN 105443803A CN 201511031047 A CN201511031047 A CN 201511031047A CN 105443803 A CN105443803 A CN 105443803A
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- CN
- China
- Prior art keywords
- valve
- import
- spool
- rotating core
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention provides a pilot reversing valve belonging to the technical field of reversing valves and solving the problem of high using cost of the existing reversing valve. The pilot reversing valve comprises a valve body, a valve element, a valve cap and a rotating core, wherein an inlet and an outlet are formed in the valve body, and a plurality of channels used as medium channels are arranged between the inlet and the outlet; the valve element is used for opening or closing the inlet and the outlet and is arranged on the valve body; the valve cap is arranged on the valve body, a pressure cavity communicated with the channel is formed between the valve cap and the valve body, and the valve element is located in the pressure cavity; the rotating core is arranged on the valve cap and is respectively communicated with the pressure cavity and the channels; and when the rotating core rotates, a medium can flow into the rotating core through the channels and flow into the pressure cavity after penetrating through the rotating core, and the medium can push the valve element to move along the pressure cavity, so that the inlet is communicated with the outlet. The pilot reversing valve has the advantages that the using cost is low, and the valve element clamping phenomenon can be avoided.
Description
Technical field
The invention belongs to selector valve technical field, relate to a kind of pilot reversing valve.
Background technique
Compared with the transmission device of the other types such as mechanical transmission, hydraulic transmission have volume little, lightweight, be active in one's movements, frequent starting and commutation can be realized, manipulation is simple and be easy to the plurality of advantages such as control.Therefore, be widely applied in many machinery at present, in various hydraulic transmission, hydraulic control valve is absolutely necessary element, and it refers in hydraulic transmission for controlling the element in hydrodynamic pressure, flow and direction.Wherein, there is control, start and stop and all valves of function of pressure fluid directional correlation can be described as selector valve.
In position control valve, hydraulic electromagnetic change valve uses more a kind of solenoid valve in current industrial control, and it has important effect in control flow check direction of flow.But hydraulic electromagnetic change valve in use also exists problems, in existing solenoid directional control valve in use there is stuck situation in the movable part such as spool sometimes; Solenoid directional control valve of the prior art adopts electromagnetic actuator directly to drive spool to move axially simultaneously, and the power consumption of electromagnetic actuator is large, improves user cost.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the pilot reversing valve that a kind of user cost is low, spool jam phenomenon can be avoided to produce.
Object of the present invention realizes by following technical proposal: a kind of pilot reversing valve, comprising:
Valve body, valve body offers import and outlet, is provided with some passages for medium circulation between import and outlet;
Spool, it is for opening and closing import and outlet and be arranged at valve body;
Valve gap, it is arranged on valve body, is formed with the pressure chamber communicated with passage between valve gap and valve body, and described spool is positioned at pressure chamber;
Rotating core, it is arranged on valve gap, and communicates with pressure chamber and passage respectively;
When rotating core rotates, medium flows into rotating core by passage, and flows in pressure chamber through rotating core, and medium can promote spool and move along pressure chamber, makes import and outlet conducting.
In above-mentioned a kind of pilot reversing valve, the quantity of described valve gap is two, and two valve gaps are arranged at the two ends of valve body respectively, and two valve gaps are provided with rotating core, each rotating core can realize spool single-way moving, and described spool can to-and-fro motion between two rotating cores.
In above-mentioned a kind of pilot reversing valve, described import comprises the import P and import T that communicate with passage respectively, described outlet comprises the commutation mouth A and the mouth B that commutates that communicate with passage, spool can close import P and import T is communicated with commutation mouth A and the mouth B that commutates respectively, when rotate wherein a rotating core time, medium can promote spool single-way moving, import P is made to communicate with commutation mouth A and import T is communicated with commutation mouth B, when rotating another rotating core, import P is made to communicate with commutation mouth B and import T is communicated with commutation mouth A.
In above-mentioned a kind of pilot reversing valve, stretch out at the two ends of spool and be formed with assembly department, assembly department is arranged with the elastic component for valve core reset, valve gap offers the mounting groove corresponding with elastic component, the two ends of described elastic component are resisted against on spool and mounting groove respectively.
In above-mentioned a kind of pilot reversing valve, described rotating core comprises assembly department and rotation section, described assembly department is arranged on valve gap, the outer surface of assembly department offers the first circular groove and the second circular groove, described first circular groove communicates with import P, described second circular groove leads to outlet T-phase, and valve gap offers the communication groove for the first circular groove and the second circular groove conducting, and described rotation section to be fixed on assembly department and protruding valve gap.
In above-mentioned a kind of pilot reversing valve, valve gap is provided with solenoid valve, described rotation section is connected with solenoid valve, and described solenoid valve can drive rotation section circumference to rotate.
In above-mentioned a kind of pilot reversing valve, rotation section is run through and is provided with position-limited lever, valve gap is provided with limited post, described position-limited lever circumference can rotate between adjacent two limited posts.
Compared with prior art, the present invention includes valve body, spool and valve gap, valve gap is provided with rotating core, when rotating core circumference is rotated, medium can be made to promote spool axial motion, selector valve is normally worked, and the present invention promotes spool by medium and moves axially the working efficiency that improve spool, avoids the generation of spool jam phenomenon; The present invention is simultaneously moved axially by medium promotion spool and replaces existing solenoid valve directly to drive spool to move axially, and reduces user cost of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is sectional drawing of the present invention.
Fig. 3 is left view of the present invention.
Fig. 4 is the structural representation of rotating core in a preferred embodiment of the present invention.
In figure, 100, valve body; 110, import P; 120, import T; 130, commutate mouth A; 140, commutate mouth B; 200, spool; 300, valve gap; 400, rotating core; 410, assembly department; 411, the first circular groove; 412, the second circular groove; 413, the first connecting groove; 414, the second connecting groove; 415, the 3rd connecting groove; 420, rotation section; 500, elastic component; 600, position-limited lever; 610, limited post.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figures 1 to 4, this pilot reversing valve comprises:
Valve body 100, valve body 100 offers import and outlet, is provided with some passages for medium circulation between import and outlet;
Spool 200, it is for opening and closing import and outlet and be arranged at valve body 100;
Valve gap 300, it is arranged on valve body 100, is formed with the pressure chamber communicated with passage between valve gap 300 and valve body 100, and described spool 200 is positioned at pressure chamber;
Rotating core 400, it is arranged on valve gap 300, and communicates with pressure chamber and passage respectively;
When rotating core 400 rotates, medium flows into rotating core 400 by passage, and flows in pressure chamber through rotating core 400, and medium can promote spool 200 and move along pressure chamber, makes import and outlet conducting.
Preferably, the quantity of above-mentioned valve gap 300 is two, two valve gaps 300 are arranged at the two ends of valve body 100 respectively, two valve gaps 300 are provided with rotating core 400, each rotating core 400 can realize spool 200 single-way moving, medium can be made to promote spool 200 to-and-fro motion between two rotating cores 400, ensure that selector valve normally works, improve working efficiency.
Further, above-mentioned import comprises the import P110 and import T120 that communicate with passage respectively, outlet comprises the commutation mouth A130 and the mouth B140 that commutates that communicate with passage, in an initial condition, spool 200 can block import P110 and import T120 is communicated with commutation mouth A130 and the mouth B140 that commutates respectively, and selector valve quits work.
When rotating the rotating core 400 be arranged on the left of valve body 100, medium flows into this rotating core 400 by passage and flows in pressure chamber by this rotating core 400, thus medium can promote spool 200 axially moves right along valve body 100, import P110 communicated with commutation mouth A130 and import T120 is communicated with commutation mouth B140, thus achieving the mouth A130 that commutates and normally work.
When rotating the rotating core 400 be arranged on the right side of valve body 100, medium flows into this rotating core 400 by passage and flows in pressure chamber by this rotating core 400, thus medium can promote spool 200 is axially moved to the left along valve body 100, import P110 communicated with commutation mouth B140 and import T120 is communicated with commutation mouth A130, thus achieving the mouth B140 that commutates and normally work.
In use, two rotating cores 400 can realize the switching that medium flows into commutation mouth A130 or commutation mouth B140, ensure that the normal work of selector valve, rotated by rotating core 400 circumference makes medium promotion spool 200 move axially along valve body 100 simultaneously, and replace directly promoting spool 200 by solenoid valve in prior art and move axially, reduce the power consumption that solenoid valve normally works, it also avoid the generation causing spool 200 stuck phenomenon due to solenoid valve failure simultaneously, improve working efficiency and the operating life of selector valve.
Stretch out at the two ends of spool 200 and be formed with assembly department 410, assembly department 410 is arranged with the elastic component 500 resetted for spool 200, valve gap 300 offers the mounting groove corresponding with elastic component 500, the two ends of elastic component 500 are resisted against on spool 200 and mounting groove respectively, elastic component 500 be arranged so that can promote spool 200 when selector valve quits work return back to initial position, ensure that the normal work of selector valve, improve the working efficiency of selector valve.
Above-mentioned rotating core 400 comprises assembly department 410 and rotation section 420, assembly department 410 is arranged on valve gap 300, above-mentioned rotation section 420 to be fixed on assembly department 410 and protruding valve gap 300, the outer surface of assembly department 410 offers the first circular groove 411 and the second circular groove 412, first circular groove 411 communicates with commutation mouth P, second circular groove 412 communicates with commutation mouth A130 and pressure chamber respectively, and valve gap 300 offers the communication groove for the first circular groove 411 and the second circular groove 412 conducting.
Preferably, the first connecting groove 413, second connecting groove 414 and the 3rd connecting groove 415 is offered at assembly department 410 outer surface, described first connecting groove 413 communicates with the first circular groove 411, described second connecting groove 414 and the 3rd connecting groove 415 all communicate with the second circular groove 412, described communication groove energy conducting first connecting groove 413 and the second connecting groove 414, medium in described import T120 is directed in the 3rd connecting groove 415, and is flowed in the second circular groove 412 by the 3rd connecting groove 415.
In an initial condition, the passage that import T120 communicates and the 3rd connecting groove 415 misplace, thus make the medium in import T120 can not be directed in the second circular groove 412, and communication groove can make the first circular groove 411 and the second circular groove 412 UNICOM, medium in import P110 can flow into the first circular groove 411 of two assembly departments 410 and flow into the second circular groove 412 by communication groove, final medium is directed in the pressure chamber of both sides, thus the medium of both sides is cancelled out each other to the thrust that spool 200 produces, thus spool 200 transfixion.
When the rotation section 420 in left side drives assembly department 410 circumference to turn to several angle, communication groove turns an angle relative to assembly department 410 and first circular groove 411 and the second circular groove 412 is blocked, medium in import T120 to flow in the second circular groove 412 by the 3rd connecting groove 415 and is directed in pressure chamber, but the pressure due to the medium in import T120 is less than the pressure of medium in import P110, thus the pressure on right side is greater than the pressure in left side in pressure chamber in pressure chamber, thus spool 200 is axially moved to the left along pressure chamber.
When the rotation section 420 on right side drives assembly department 410 circumference to turn to several angle, communication groove turns an angle relative to assembly department 410 and first circular groove 411 and the second circular groove 412 is blocked, medium in import T120 to flow in the second circular groove 412 by the 3rd connecting groove 415 and is directed in pressure chamber, but the pressure due to the medium in import T120 is less than the pressure of medium in import P110, thus the pressure in left side is greater than the pressure on right side in pressure chamber in pressure chamber, thus spool 200 axially moves right along pressure chamber.
Preferably, solenoid valve is respectively arranged with at the two ends of valve gap 300, above-mentioned portion is connected with solenoid valve, rotation section 420 circumference can be driven to rotate when solenoid valves, in use, two solenoid valve alternate conduction can realize medium and promote spool 200 along valve body 100 to-and-fro motion, ensure that the normal work of selector valve.
Rotation section 420 is run through and is provided with position-limited lever 600, valve gap 300 is provided with limited post 610, position-limited lever 600 circumference can rotate between adjacent two limited posts 610, the setting of limited post 610 improves rotation section 420 rotation precision, avoid affecting due to the rotation precision generation error of rotation section 420 selector valve normally to work the generation of phenomenon, improve the working efficiency of this selector valve.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (7)
1. a pilot reversing valve, is characterized in that, comprising:
Valve body, valve body offers import and outlet, is provided with some passages for medium circulation between import and outlet;
Spool, it is for opening and closing import and outlet and be arranged at valve body;
Valve gap, it is arranged on valve body, is formed with the pressure chamber communicated with passage between valve gap and valve body, and described spool is positioned at pressure chamber;
Rotating core, it is arranged on valve gap, and communicates with pressure chamber and passage respectively;
When rotating core rotates, medium flows into rotating core by passage, and flows in pressure chamber through rotating core, and medium can promote spool and move along pressure chamber, makes import and outlet conducting.
2. a kind of pilot reversing valve according to claim 1, it is characterized in that, the quantity of described valve gap is two, two valve gaps are arranged at the two ends of valve body respectively, two valve gaps are provided with rotating core, each rotating core can realize spool single-way moving, and described spool can to-and-fro motion between two rotating cores.
3. a kind of pilot reversing valve according to claim 1, it is characterized in that, described import comprises the import P and import T that communicate with passage respectively, described outlet comprises the commutation mouth A and the mouth B that commutates that communicate with passage, spool can close import P and import T is communicated with commutation mouth A and the mouth B that commutates respectively, when rotate wherein a rotating core time, medium can promote spool single-way moving, import P is made to communicate with commutation mouth A and import T is communicated with commutation mouth B, when rotating another rotating core, import P is made to communicate with commutation mouth B and import T is communicated with commutation mouth A.
4. a kind of pilot reversing valve according to claim 3, it is characterized in that, stretch out at the two ends of spool and be formed with assembly department, assembly department is arranged with the elastic component for valve core reset, valve gap offers the mounting groove corresponding with elastic component, and the two ends of described elastic component are resisted against on spool and mounting groove respectively.
5. a kind of pilot reversing valve according to claim 4, it is characterized in that, described rotating core comprises assembly department and rotation section, described assembly department is arranged on valve gap, the outer surface of assembly department offers the first circular groove and the second circular groove, and described first circular groove communicates with import P, and described second circular groove leads to outlet T-phase, valve gap offers the communication groove for the first circular groove and the second circular groove conducting, and described rotation section to be fixed on assembly department and protruding valve gap.
6. a kind of pilot reversing valve according to claim 4 or 5, is characterized in that, valve gap is provided with solenoid valve, described rotation section is connected with solenoid valve, and described solenoid valve can drive rotation section circumference to rotate.
7. a kind of pilot reversing valve according to claim 6, is characterized in that, rotation section is run through being provided with position-limited lever, valve gap is provided with limited post, and described position-limited lever circumference can rotate between adjacent two limited posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031047.5A CN105443803A (en) | 2015-12-31 | 2015-12-31 | Pilot reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031047.5A CN105443803A (en) | 2015-12-31 | 2015-12-31 | Pilot reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443803A true CN105443803A (en) | 2016-03-30 |
Family
ID=55554321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511031047.5A Pending CN105443803A (en) | 2015-12-31 | 2015-12-31 | Pilot reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113439165A (en) * | 2019-05-22 | 2021-09-24 | 川崎重工业株式会社 | Oil pressure system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939870A (en) * | 1974-11-14 | 1976-02-24 | Deltrol Corporation | Combination manual and pilot operated directional control valve |
| US4132245A (en) * | 1977-01-17 | 1979-01-02 | Caterpillar Tractor Co. | External centering spring adjustment for a spool valve |
| JPS5565774A (en) * | 1978-11-08 | 1980-05-17 | Toyooki Kogyo Co Ltd | Pilot actuation change-over valve |
| CN101666340A (en) * | 2008-09-03 | 2010-03-10 | 上海立新液压有限公司 | Reversing valve operated by handwheel |
| JP2010127373A (en) * | 2008-11-27 | 2010-06-10 | Mitsubishi Heavy Ind Ltd | Hydraulic pilot type proportional solenoid control valve |
| CN201908883U (en) * | 2010-12-29 | 2011-07-27 | 上海美钻设备成套有限公司 | Two-position three-way pilot reversing valve |
| CN203641645U (en) * | 2014-01-17 | 2014-06-11 | 宁波市镇海华力液压机电有限公司 | Low-cost hand-operated reversing valve |
| CN204878857U (en) * | 2015-08-28 | 2015-12-16 | 博世力士乐（常州）有限公司 | Switching -over valve and fluid tight subassembly |
| CN205260913U (en) * | 2015-12-31 | 2016-05-25 | 宁波华液机器制造有限公司 | Guide's valve that commutates |
-
2015
- 2015-12-31 CN CN201511031047.5A patent/CN105443803A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939870A (en) * | 1974-11-14 | 1976-02-24 | Deltrol Corporation | Combination manual and pilot operated directional control valve |
| US4132245A (en) * | 1977-01-17 | 1979-01-02 | Caterpillar Tractor Co. | External centering spring adjustment for a spool valve |
| JPS5565774A (en) * | 1978-11-08 | 1980-05-17 | Toyooki Kogyo Co Ltd | Pilot actuation change-over valve |
| CN101666340A (en) * | 2008-09-03 | 2010-03-10 | 上海立新液压有限公司 | Reversing valve operated by handwheel |
| JP2010127373A (en) * | 2008-11-27 | 2010-06-10 | Mitsubishi Heavy Ind Ltd | Hydraulic pilot type proportional solenoid control valve |
| CN201908883U (en) * | 2010-12-29 | 2011-07-27 | 上海美钻设备成套有限公司 | Two-position three-way pilot reversing valve |
| CN203641645U (en) * | 2014-01-17 | 2014-06-11 | 宁波市镇海华力液压机电有限公司 | Low-cost hand-operated reversing valve |
| CN204878857U (en) * | 2015-08-28 | 2015-12-16 | 博世力士乐（常州）有限公司 | Switching -over valve and fluid tight subassembly |
| CN205260913U (en) * | 2015-12-31 | 2016-05-25 | 宁波华液机器制造有限公司 | Guide's valve that commutates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113439165A (en) * | 2019-05-22 | 2021-09-24 | 川崎重工业株式会社 | Oil pressure system |
| CN113439165B (en) * | 2019-05-22 | 2024-03-19 | 川崎重工业株式会社 | Hydraulic system |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160330 |