CN207145678U - Electromagnetism banked direction control valves - Google Patents
Electromagnetism banked direction control valves Download PDFInfo
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- CN207145678U CN207145678U CN201721104644.0U CN201721104644U CN207145678U CN 207145678 U CN207145678 U CN 207145678U CN 201721104644 U CN201721104644 U CN 201721104644U CN 207145678 U CN207145678 U CN 207145678U
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Abstract
A kind of electromagnetism banked direction control valves.The banked direction control valves for solving existing agricultural machinery does not possess hydraulic pressure lock function, and pressure is big in pipeline so that the problem of car body shake is big, noise is big.It includes main valve and multiple locked hydraulic oil when having work prevent operating valve of the hydraulic oil from oil return box, described main valve is provided with solenoid directional control valve and main overflow valve, described main valve is provided with oil inlet and oil return opening, described oil inlet is connected with solenoid directional control valve, main overflow valve and multiple operating valves respectively, and described solenoid directional control valve has the first position and the second place for make it that oil inlet is connected with main overflow valve is disconnected when operating valve works for make it that oil inlet is connected with oil return opening.The advantages that the utility model also has simple in construction, easy to assembly, reliable in action, and service life is long.
Description
Technical field
It the utility model is related to a kind of agricultural machinery, and in particular to a kind of electromagnetism banked direction control valves.
Background technology
Agricultural machinery refers to during crop-planting industry and Animal husbandry production, Yi Jinong, livestock products preliminary working and processing
During used various machineries.Agricultural machinery includes farm power machinery, farmland construction machinery, soil cultivating machine, kind
Plant and fertilizer machinery, plant protection mechanism, farmland discharging-irrigating machinery, crop harvesting machine, agricultural product processing machinery, animal husbandry machinery
With farm transportation machinery etc..The agricultural machinery of broad sense also includes forestry machinery, fishery machinery and silkworm and mulberry, bee-keeping, edible fungi training
The agricultural sideline occupations such as plant machinery.Agricultural machinery belongs to relative concept, and it is all mechanical for agricultural, animal husbandry, forestry and fishery to refer to
General name, agricultural machinery belong to the category of agricultural machinery and implement.Existing agricultural machinery controls at it and banked direction control valves, multichannel is generally set on oil circuit
The oil-out of valve is generally connected with actuator, and needs to lock the hydraulic oil in actuator in practical work process
It is fixed so that hydraulic oil is present in actuator, ensures the security performance of product.But existing banked direction control valves does not have interlock, deposits
In potential safety hazard, and the control of existing banked direction control valves is simple, and when operating valve does not work, the pressure oil of main oil-feed is suppressed in pipeline,
Hydraulic oil easily make it that pipeline is damaged, and shakes greatly, and noise is big so that the service life of product is short.
The content of the invention
Banked direction control valves to solve existing agricultural machinery in background technology does not possess hydraulic pressure lock function, and pressure is big in pipeline,
So that the problem of car body shake is big, noise is big, the utility model provides a kind of electromagnetism banked direction control valves.
The technical solution of the utility model is：A kind of electromagnetism banked direction control valves, including main valve and multiple locked liquid when there is work
Force feed make it that described main valve is provided with solenoid directional control valve and main overflow valve to hydraulic oil, described from the operating valve of oil return box
Main valve is provided with oil inlet and oil return opening, described oil inlet respectively with solenoid directional control valve, main overflow valve and multiple operating valve phases
Connection, described solenoid directional control valve have the first position and break when operating valve works for make it that oil inlet is connected with oil return opening
Open so that the second place that oil inlet is connected with main overflow valve.
As a kind of improvement of the present utility model, described operating valve has four and four operating valves are arranged side by side.
As further improvement of the utility model, described operating valve has six and six operating valves are arranged side by side.
As further improvement of the utility model, described main valve is provided with the pressure measurement for being used for pipeline inner pressure measurement
Mouthful.
As further improvement of the utility model, described operating valve includes valve body, and described valve body is provided with first
Oil duct, the second oil duct, the 3rd oil duct, the 4th oil duct and control chamber, the first described oil duct, the second oil duct are connected with control chamber
It is logical, piston rod, the first control valve and the second control valve are provided with described control chamber, control chamber is divided into by described piston rod
Mutual disconnected first cavity volume and the second cavity volume, the first described control valve is located between the first cavity volume and the 3rd oil duct, described
The second control valve be located between the second cavity volume and the 4th oil duct, the first described control valve, the second control valve have beats simultaneously
Open so that the first cavity volume is connected by the 3rd oil duct with actuator and the second cavity volume is connected by the 4th oil duct with actuator
Logical first state and simultaneously close off and cause second state of the hydraulic oil in actuator from oil return box.
As further improvement of the utility model, described piston rod has to close in the first control valve, the second control valve
The first position that is still in when closing in control chamber and slid with valve body and coordinate top to open the second of the first control valve or the second control valve
Position.
As further improvement of the utility model, described piston rod enters pressure oil in the first oil duct and opens the first control
Promote relative valve body to slide by the pressure oil in the first oil duct during valve and open the second control valve.
As further improvement of the utility model, the first described control valve includes valve seat, valve pocket and valve element, described
The end face of valve seat and valve pocket offsets and valve pocket is fixed in the control chamber of valve body, and the valve core housing is described in valve pocket
Valve element has the first position and be engaged with valve sleeving inner wall so that the first cavity volume for make it that the first cavity volume is connected with the 3rd oil duct
The second place disconnected with the 3rd oil duct.
As further improvement of the utility model, the first described control valve includes valve seat, valve pocket and valve element, the valve
Core retainer plate in the valve pocket, described valve element have cause first position that the first cavity volume is connected with the 3rd oil duct and with valve pocket
Wall is engaged the second place for make it that the first cavity volume and the 3rd oil duct disconnect, and described valve pocket is connected with valve body screw thread, described
Valve seat is threadedly coupled with valve pocket.
As further improvement of the utility model, described valve seat is sheathed in valve pocket and by elastic component and valve element phase
Support, described elastic component has the movement tendency that driving valve element tends to the second place.
The beneficial effects of the utility model are that there is provided main valve, and solenoid directional control valve and main overflow valve are provided with main valve,
When being arranged on operating valve work of main overflow valve, its safe valve action, the pressure in guarantee system is not over setting pressure, electricity
When being arranged on system fuel feeding of magnetic reversal valve and operating valve do not work, there is provided oil return, avoid oil pressure from suppressing and pipe is damaged extremely in pipeline
Road, avoid farm machinery from shaking, reduce noise.The utility model also has simple in construction, easy to assembly, reliable in action, uses
The advantages that long lifespan.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment one.
Accompanying drawing 2 is the hydraulic schematic diagram of accompanying drawing 1.
Accompanying drawing 3 is the structural representation of the utility model embodiment two.
Accompanying drawing 4 is the hydraulic schematic diagram of accompanying drawing 3.
Accompanying drawing 5 is the structural representation of operating valve 2 in the utility model embodiment one or two.
Accompanying drawing 6 is the structural representation of the first control valve 23 in accompanying drawing 5.
Accompanying drawing 7 is the structural representation of another arrangement works valve 2 in the utility model embodiment one or two.
Accompanying drawing 8 is the structural representation of the first control valve 23 in accompanying drawing 7.
In figure, 1, main valve；11st, oil inlet；12nd, oil return opening；13rd, pressure tap；2nd, operating valve；21st, valve body；211st, the first oil
Road；212nd, the second oil duct；213rd, the 3rd oil duct；214th, the 4th oil duct；215th, control chamber；2151st, the first cavity volume；2152nd, second
Cavity volume；22nd, piston rod；23rd, the first control valve；231st, valve seat；232nd, valve pocket；2321st, edge；233rd, valve element；234th, elastic component；
24th, the second control valve；3rd, solenoid directional control valve；4th, main overflow valve；.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As shown in Fig. 1 combinations 2-8, a kind of electromagnetism banked direction control valves, including main valve 1 and multiple locked hydraulic oil when having work make
The operating valve 2 that hydraulic oil is unable to oil return box is obtained, described main valve 1 is provided with solenoid directional control valve 3 and main overflow valve 4, described master
Valve 1 is provided with oil inlet 11 and oil return opening 12, described oil inlet 11 respectively with solenoid directional control valve 3, main overflow valve 4 and multiple works
Make valve 2 to be connected, described solenoid directional control valve 3, which has, causes the first position that is connected with oil return opening 12 of oil inlet 11 and in work
Make to disconnect so that the second place that oil inlet 11 is connected with main overflow valve 4 when valve 2 works.The utility model is provided with main valve,
It is provided with solenoid directional control valve and main overflow valve on main valve, when being arranged on operating valve work of main overflow valve, its safe valve action,
Pressure in guarantee system is not over setting pressure, when being arranged on system fuel feeding of solenoid directional control valve and operating valve do not work,
Oil return is provided, avoids oil pressure from suppressing and pipeline is extremely damaged in pipeline, avoid farm machinery from shaking, reduces noise.The utility model is also
With the advantages that simple in construction, easy to assembly, reliable in action, service life is long.
Embodiment one：Referring to attached Fig. 1 and 2,5,6,7,8, described operating valve 2 has four and four operating valves are set side by side
Put.Embodiment two：Referring to accompanying drawing 3 and 4,5,6,7,8, described operating valve 2 has six and six operating valves are arranged side by side.This reality
Same or like with new work valve arrangement, the difference of embodiment one and embodiment two is only the difference of operating valve quantity.
In practical work process, the operating valve of the tetrad can realize drum speed lifting declines on farm machinery control, unloading
Control, the control of reel paddle rise and fall that control, the ceding of Taiwan lifting of bucket expansion withdrawal decline, six operating valve can be real
The control of drum speed lifting decline, unloading bucket deploy the control of withdrawal, the control that ceding of Taiwan lifting declines, pulled out on existing farm machinery
The controlling of standing grain wheel rise and fall, the control of main clutch separation engagement, the control of gap bridge clutch separation engagement.
Described main valve 1 is provided with the pressure tap 13 for being used for pipeline inner pressure measurement.The setting of pressure tap causes in system
Pressure exceed setting pressure when early warning is provided, avoid potential safety hazard.
Described operating valve 2 includes valve body 21, and described valve body 21 is provided with the first oil duct 211, the second oil duct 212, the
Three oil ducts 213, the 4th oil duct 214 and control chamber 215, the first described oil duct 211, the second oil duct 212 with the phase of control chamber 215
Connection, described control chamber 215 is interior to be provided with piston rod 22, the first control valve 23 and the second control valve 24, described piston rod 22
Control chamber 215 is divided into the mutual disconnected cavity volume 2152 of first cavity volume 2151 and second, the first described control valve 23 is located at
Between first cavity volume 2151 and the 3rd oil duct 213, the second described control valve 24 is located at the second cavity volume 2152 and the 4th oil duct 214
Between, the first described control valve 23, the second control valve 24, which have to open simultaneously, causes the first cavity volume 2151 to pass through the 3rd oil duct
213 are connected and first state that the second cavity volume 2152 is connected by the 4th oil duct 214 with actuator and same with actuator
When close cause actuator in hydraulic oil from oil return box the second state.Specifically, the described He of the first control valve 23
Second control valve 24 is check valve.The utility model is provided with two control valves and a piston rod, passes through two control valves
Simultaneously close off so that the hydraulic oil of the big chamber of actuator and small chamber is unable to oil return box, realizes the function of hydraulic lock, ensures that product is reliable
Safe action, when one of control valve is opened, another control valve can reliably, be quickly driven to open by piston rod,
So that the hydraulic oil oil back chamber of actuator.The utility model also has simple in construction, easy to assembly, reliable in action, service life
The advantages that long.
Described piston rod 22 has to be still in control chamber 215 when the first control valve 23, the second control valve 24 are closed
First position and slid with valve body 21 and coordinate top to open the second place of the first control valve 23 or the second control valve 24.Specifically
Say, described piston rod 22 enters when pressure oil opens the first control valve 23 by the pressure in the first oil duct 211 in the first oil duct 211
Oil promotes relative valve body 21 to slide and open the second control valve 24.So that the first oil duct enters pressure oil as an example, when the first oil duct oil-feed
When, the first cavity volume is interior to be full of pressure oil, and the valve element of the first control valve is opened, and pressure oil enters actuator by the 3rd oil duct
Big chamber or small chamber, while the pressure oil ejector piston bar in the first cavity volume, piston rod stress overcome the elasticity of the second control valve
Power, the second control valve is opened, now the pressure oil of the small chamber in actuator or big chamber is through the 4th oil duct, the second control valve, second
Cavity volume, the second oil duct oil return box.Such structure causes product to have safe hydraulic pressure lock function so that product structure is simple, connection
Lock is reliable.
Referring to accompanying drawing 5 and 6, the first described control valve 23 includes valve seat 231, valve pocket 232 and valve element 233, described valve
The end face of seat 231 and valve pocket 232 is offseted and valve pocket 232 is fixed in the control chamber 215 of valve body 21, and the valve element 233 is arranged
In in valve pocket 232, described valve element 233 have cause first position that the first cavity volume 2151 is connected with the 3rd oil duct 213 and
The second place for make it that the first cavity volume 2151 and the 3rd oil duct 213 disconnect is engaged with the inwall of valve pocket 232.Valve seat, valve pocket use
Split-type structural so that parts machining is convenient, and valve pocket need not coordinate with regard to that can be put into the control chamber of valve body, it is only necessary to valve seat
It can be achieved with being locked for valve pocket so that Product processing is easy to assembly.
Described valve element 233 is provided with elastic component 234, and described elastic component 234 offsets with valve seat 231, described elasticity
Part 234 has the movement tendency that driving valve element 233 tends to the second place.Specifically, one end of described valve pocket 232 and valve seat
231 are offseted, and the other end offsets with the inwall of valve body 21, and described valve seat 231 is threadedly coupled with valve body 21.It is such so that product knot
Structure is simple, easy to process, and interlocking is reliable.
Referring to accompanying drawing 7 and 8, the first described control valve 23 includes valve seat 231, valve pocket 232 and valve element 233, the valve element
233 are sheathed in valve pocket 232, and described valve element 233 has first that the first cavity volume 2151 is connected with the 3rd oil duct 213
Position and the second place for causing the disconnection of the first cavity volume 2151 and the 3rd oil duct 213, described valve are engaged with the inwall of valve pocket 232
Set 232 is threadedly coupled with valve body 21, and described valve seat 231 is threadedly coupled with valve pocket 232.Valve pocket of the present utility model is using one
Formula structure, is directly connected with valve body, and valve pocket does not have to top and arrives valve body, will not thus make valve body deformation, avoid piston rod movement
During it is stuck, add the reliability of product.Sealing means, which are only used in the diametric(al) of valve pocket, simultaneously is sealed, and has one
Fixed relaxation effect so that product sealed reliable.And valve seat and valve element are all in valve pocket, it is possible to achieve integral type is installed, knot
Structure is simple, easy for installation, good seal performance.
Described valve seat 231 is sheathed in valve pocket 232 and offseted by elastic component 234 and valve element 233, described elastic component
234 have the movement tendency that driving valve element 233 tends to the second place.Specifically, valve body 21 is stretched out in one end of the valve pocket 232
Outside and edge 2321 is folded, the outer wall at described edge 2321 and valve body 21 fits.Such structure causes product to have very well
Sealing effectiveness, it is easy installation and reliable so that product interlocking is reliable.
The utility model can be used in harvester realizing interlock in electromagnetism banked direction control valves, can be used for other agricultures
In industry plant equipment, naturally it is also possible to hydraulic pressure lock function is realized on common banked direction control valves, certainly in practical work process,
Can be by multiple the utility model in parallel or in series in hydraulic system, for hydraulic system from lock control.
Every technical staff's notice：Although the utility model describes according to above-mentioned embodiment, this
The invention thought of utility model is not limited to that utility model, any repacking with inventive concept, will all include this specially
In sharp scope of patent protection.
Claims (10)
- A kind of 1. electromagnetism banked direction control valves, it is characterised in that:Including main valve（1）With it is multiple there is work when locked hydraulic oil cause hydraulic pressure Oil is unable to the operating valve of oil return box（2）, described main valve（1）It is provided with solenoid directional control valve（3）With main overflow valve（4）, it is described Main valve（1）It is provided with oil inlet（11）And oil return opening（12）, described oil inlet（11）Respectively with solenoid directional control valve（3）, main overflow Flow valve（4）With multiple operating valves（2）It is connected, described solenoid directional control valve（3）With causing oil inlet（11）With oil return opening （12）The first position that is connected and in operating valve（2）Disconnected during work and cause oil inlet（11）With main overflow valve（4）It is connected The second place.
- 2. electromagnetism banked direction control valves according to claim 1, it is characterised in that described operating valve（2）There are four and four work Valve is arranged side by side.
- 3. electromagnetism banked direction control valves according to claim 1, it is characterised in that described operating valve（2）There are six and six work Valve is arranged side by side.
- 4. electromagnetism banked direction control valves according to claim 1, it is characterised in that described main valve（1）It is provided with and is used for pipeline internal pressure The pressure tap of power measurement（13）.
- 5. electromagnetism banked direction control valves according to claim 1, it is characterised in that described operating valve（2）Including valve body（21）, institute The valve body stated（21）It is provided with the first oil duct（211）, the second oil duct（212）, the 3rd oil duct（213）, the 4th oil duct（214）And control Chamber processed（215）, described the first oil duct（211）, the second oil duct（212）And control chamber（215）It is connected, described control chamber （215）It is interior to be provided with piston rod（22）, the first control valve（23）With the second control valve（24）, described piston rod（22）By control chamber （215）It is divided into mutual disconnected first cavity volume（2151）With the second cavity volume（2152）, described the first control valve（23）It is located at First cavity volume（2151）With the 3rd oil duct（213）Between, the second described control valve（24）Located at the second cavity volume（2152）With Four oil ducts（214）Between, the first described control valve（23）, the second control valve（24）Cause the first cavity volume with opening simultaneously （2151）Pass through the 3rd oil duct（213）It is connected with actuator and the second cavity volume（2152）Pass through the 4th oil duct（214）With holding First state that row device is connected and simultaneously close off and cause second state of the hydraulic oil in actuator from oil return box.
- 6. electromagnetism banked direction control valves according to claim 5, it is characterised in that described piston rod（22）With in the first control Valve（23）, the second control valve（24）Control chamber is still in during closing（215）Interior first position and and valve body（21）Sliding coordinates Open the first control valve in top（23）Or second control valve（24）The second place.
- 7. electromagnetism banked direction control valves according to claim 6, it is characterised in that described piston rod（22）In the first oil duct（211） Enter pressure oil and open the first control valve（23）When by the first oil duct（211）Interior pressure oil promotes relative valve body（21）Slide and beat Open the second control valve（24）.
- 8. electromagnetism banked direction control valves according to claim 5, it is characterised in that the first described control valve（23）Including valve seat （231）, valve pocket（232）And valve element（233）, described valve seat（231）With valve pocket（232）End face offset and by valve pocket（232） It is fixed on valve body（21）Control chamber（215）It is interior, the valve element（233）It is sheathed on valve pocket（232）Interior, described valve element（233） With causing the first cavity volume（2151）With the 3rd oil duct（213）The first position being connected and and valve pocket（232）Inwall is engaged So that the first cavity volume（2151）With the 3rd oil duct（213）The second place of disconnection.
- 9. electromagnetism banked direction control valves according to claim 5, it is characterised in that the first described control valve（23）Including valve seat （231）, valve pocket（232）And valve element（233）, the valve element（233）It is sheathed on valve pocket（232）Interior, described valve element（233）Have So that the first cavity volume（2151）With the 3rd oil duct（213）The first position being connected and and valve pocket（232）Inwall be engaged so that First cavity volume（2151）With the 3rd oil duct（213）The second place of disconnection, described valve pocket（232）With valve body（21）Screw thread connects Connect, described valve seat（231）With valve pocket（232）Threaded connection.
- 10. electromagnetism banked direction control valves according to claim 9, it is characterised in that described valve seat（231）It is sheathed on valve pocket（232） It is interior and pass through elastic component（234）With valve element（233）Offset, described elastic component（234）With driving valve element（233）Tend to second The movement tendency of position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104644.0U CN207145678U (en) | 2017-08-31 | 2017-08-31 | Electromagnetism banked direction control valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104644.0U CN207145678U (en) | 2017-08-31 | 2017-08-31 | Electromagnetism banked direction control valves |
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| Publication Number | Publication Date |
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| CN207145678U true CN207145678U (en) | 2018-03-27 |
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ID=61670625
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721104644.0U Active CN207145678U (en) | 2017-08-31 | 2017-08-31 | Electromagnetism banked direction control valves |
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| CN (1) | CN207145678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189707A (en) * | 2023-11-06 | 2023-12-08 | 合肥协力液压科技有限公司 | Electromagnetic reversing multi-way valve for paddy field tractor |
-
2017
- 2017-08-31 CN CN201721104644.0U patent/CN207145678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189707A (en) * | 2023-11-06 | 2023-12-08 | 合肥协力液压科技有限公司 | Electromagnetic reversing multi-way valve for paddy field tractor |
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