CN102213242A - Thread plug-in type electronic control hydraulic lock - Google Patents
Thread plug-in type electronic control hydraulic lock Download PDFInfo
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- CN102213242A CN102213242A CN2011102042908A CN201110204290A CN102213242A CN 102213242 A CN102213242 A CN 102213242A CN 2011102042908 A CN2011102042908 A CN 2011102042908A CN 201110204290 A CN201110204290 A CN 201110204290A CN 102213242 A CN102213242 A CN 102213242A
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Abstract
The invention relates to a thread plug-in type electronic control hydraulic lock which comprises a flux sleeve, a fixed iron, a moving iron, a coil, a main valve core, a pilot valve core, a valve pocket, a piston, a valve seat and a check valve core, wherein the flux sleeve comprises a body and an extension tube which is formed by extending the body backward; the valve seat comprises a first oil port and a second oil port, the main valve core is limited on the rear end of the valve seat, the front end of the valve seat is provided with a first through oil hole and a second through oil hole which are provided with axial openings, the pilot valve core axially extends forwards from the moving iron, enters into the hollow cavity of the main valve core and the front end part of the pilot valve core is coordinated with the opening and closure of the first through oil hole of the main valve core; the front end of the valve pocket is provides a third air port with an axial opening and a fourth air port which is radially arranged in the middle part; and the front end of the check valve core is provided with a driving face, the side wall of the check valve core is provided with a third through oil hole which can be connected or disconnected with the fourth air port. Compared with the prior art, the hydraulic lock provided by the invention has the advantages that the control release load of the hydraulic lock is realized through the electronic control structure, the integral structure is compact, multifunction integration is realized, the volume is small, the assembly and disassembly are convenient and rapid, and the property is reliable and stable in the long term usage.
Description
Technical field
The present invention relates to a kind of hydraulic lock, relate in particular to a kind of thread cartridge formula electric-controlled hydraulic lock.Can be applicable to loops such as lifting machine, lift requires in the hydraulic system of locking.
Background technique
Conventional hydraulic is locked in the hydraulic system, because the variation of load causes fluid control pressure to change thereupon; And because acceleration, fluid control pressure can alter a great deal.The variation of fluid control pressure can cause system's oil cylinder acutely to be shaken, need with electric-controlled hydraulic lock, promptly electromagnet is initiatively opened spool for this reason, keeps spool often to open, thereby causing system's oil cylinder, the great variety of avoiding fluid control pressure acutely shakes, thus the relative smooth working of the system that reaches.But this class formation volume is bigger at present, and complicated trouble is installed, and system is difficult to integrated, the processing more complicated, and the flexibility of control reaction is lower, and whole cost is higher.
Summary of the invention
Technical problem to be solved by this invention is the thread cartridge formula electric-controlled hydraulic lock that a kind of compact structure is provided at the above-mentioned state of the art.
It is convenient and swift that technical problem to be solved by this invention provides a kind of assembly and disassembly, and long-term usability is reliable and stable, the thread cartridge formula electric-controlled hydraulic lock that maintenance rate is low.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: a kind of thread cartridge formula electric-controlled hydraulic lock is characterized in that comprising
Concentrating flux sleeve, hollow forms inner chamber, comprises the prolongation pipe that body and body extend back;
Decide iron, be located at aforesaid prolongation pipe rearward end;
Coil is coated on and aforementionedly decides iron and prolong the pipe outside, can make after the energising to decide iron and produce the magnetic field that attracts moving iron to move backward;
First return unit forces moving iron to keep proal trend all the time;
Valve seat, axial hollow and be located at the front end of aforementioned concentrating flux sleeve has first hydraulic fluid port and second hydraulic fluid port that the spaced radial at the axial port of front end and middle part is arranged,
Main valve plug, the rearward end that is limited in aforementioned valve seat also can move axially, and axially has second oil through that is used to be communicated with first hydraulic fluid port and hollow cavity that hollow cavity and front end have first oil through of axially open and take shape in sidewall;
Guide's spool is located on the aforementioned moving iron, has axially to stretch out moving iron forward and enter the hollow cavity of aforementioned main valve plug and front end and can open and close with first oil through of aforementioned main valve plug and cooperate;
Valve pocket is located at the front end of aforementioned valve seat, and front end has the 3rd hydraulic fluid port of axially open and the 4th hydraulic fluid port of middle part radial arrangement;
Piston, the rearward end that is limited in aforementioned valve pocket also can move axially also, and front end has an elongated portion;
Nonreturn valve core, be limited in the front end of aforementioned valve pocket and can move axially the stress surface of front end formation and aforementioned elongated portion contact matching, rear end formation axial pass trough, sidewall has the 3rd oil through that can realize break-make with aforementioned the 4th hydraulic fluid port, and the 3rd oil through runs through with axial pass trough and communicates; And
Second return unit forces the mobile backward trend of aforesaid nonreturn valve core maintenance so that the 3rd oil through and the 4th hydraulic fluid port are in blocking state all the time.
For improving anti-contamination level, the 3rd hydraulic fluid port of described valve pocket filters reticulum from being fitted with one outside to inside, and a filter screen is located on this filtration reticulum.
Further, be provided with a spring seat in the 3rd hydraulic fluid port of described valve pocket, the rearward end of this spring seat and described filtration reticulum leans, and described second return unit is a Returnning spring, the axial pass trough inwall of the rear end of this Returnning spring and nonreturn valve core offsets, and front end and aforesaid spring seat offset.Filter reticulum and play two effects, one is used to be provided with filter screen, and it two is used for the limit spring seat.
Further, the described front-end face of deciding iron is provided with an antifreeze plate, and, have plunger tube on the prolongation pipe of described concentrating flux sleeve.Antifreeze plate and plunger tube can play separated magnetic effect, reduce moving iron release time, shorten the shut-in time of valve, improve the responsiveness of valve.
Further, the axial hollow of described moving iron forms passage in, the one radially draining hole of running through aforementioned middle passage is arranged in the middle part of aforementioned moving iron, described guide's spool is located at passage front end in aforementioned being somebody's turn to do by the sawtooth interference fit, guide's spool has three road annular recess particularly, is connected as a single entity by withholding moving iron front-end face then.Described first return unit is the Returnning spring of being located in the aforementioned middle passage, and the rear end of this Returnning spring and described antifreeze plate offset, and the ear end face of front end and described guide's spool offsets.
The front inner wall of described valve seat forms internal thread, and accordingly, described valve pocket rear end outer wall forms the outside thread with aforementioned internal thread threaded, and the rearward end of described valve pocket has the shoulder that ends of location valve seat front-end face.Be threaded behind valve seat and the valve pocket gluing, this Placement can guarantee that both combine closely, and can bear higher pressure again, is difficult for throwing off, and guarantees well operation, simultaneously the jack axial dimension is required to reduce.
Compared with prior art, the invention has the advantages that: realize the control of hydraulic lock is discharged load, compact overall structure by automatically controlled structure, multi-functional integrated, volume is little, and assembly and disassembly is convenient and swift, and long-term usability is reliable and stable, maintenance rate is low, internal leakage is little, and simultaneously, the present invention can be applied to the big system of load variations, actuator's jitter phenomenon can be eliminated, and system is steady relatively; Compare existing mounting structure, whole cost is lower again, is quick on the draw.
Description of drawings
Fig. 1 is the example structure schematic representation.
Fig. 2 is the combination enlarged view of valve pocket and valve seat among Fig. 1.
Fig. 3 is the combination enlarged view that moves iron and guide's spool among Fig. 1.
Fig. 4 is the combination enlarged view of concentrating flux sleeve and plunger tube among Fig. 1.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the thread cartridge formula electric-controlled hydraulic in present embodiment lock comprise concentrating flux sleeve 2, decide iron 3, moving iron 4, coil 23, first return unit 63, main valve plug 7, guide's spool 6, valve pocket 5, piston 8, valve seat 1, nonreturn valve core 9, second return unit 94, spring seat 93 and filtration reticulum 92.
Concentrating flux sleeve 2 hollows form inner chamber, comprise the prolongation pipe 22 that body 21 and body 21 extend back, decide iron 3 and be located at prolongation pipe 22 rearward end, coil 23 is coated on aforementioned the decide iron and the prolongation pipe outside, can make after the energising and decide the magnetic field that the iron generation attracts moving iron to move backward, first return unit 63 forces the proal trend of moving iron 4 maintenances all the time.
Valve seat 1 axial hollow also is located at the front end of concentrating flux sleeve 2, have first hydraulic fluid port 11 and second hydraulic fluid port 12 that the spaced radial at the axial port of front end and middle part is arranged, main valve plug 7 is limited in the rearward end of valve seat 1 and can moves axially, and axially has second oil through 72 that is used to be communicated with first hydraulic fluid port 11 and hollow cavity that hollow cavity and front end have first oil through 71 of axially open and take shape in sidewall.
Guide's spool 6 is located on the moving iron 4, has axially to stretch out moving iron 4 forward and enter the hollow cavity of main valve plug 7 and front end 61 and can open and close with first oil through 71 of main valve plug and cooperate, and front end 61 is tapered.Valve pocket 5 is located at the front end of valve seat 1, and front end has the 3rd hydraulic fluid port 53 of axially open and the 4th hydraulic fluid port 54 of middle part radial arrangement.Particularly, the front inner wall of valve seat 1 forms internal thread, and accordingly, valve pocket 5 rear end outer walls form the outside thread with the internal thread threaded, and the rearward end of valve pocket 5 has the only shoulder 55 of location valve seat 1 front-end face.Be threaded behind valve seat 1 and valve pocket 5 gluings, this Placement can guarantee that both combine closely, and can bear higher pressure again, is difficult for throwing off, and guarantees well operation.
Piston 8 is limited in the rearward end of valve pocket 5 and can moves axially and front end has an elongated portion 81.Nonreturn valve core 9 is limited in the front end of valve pocket 5 and can moves axially, front end forms the stress surface with elongated portion 81 contact matching, and the rear end forms axial pass trough, and sidewall has the 3rd oil through 95 that can realize break-make with the 4th hydraulic fluid port 54, the 3rd oil through 95 runs through with axial pass trough and communicates
The 3rd hydraulic fluid port 53 of valve pocket filters reticulum 92 from being fitted with outside to inside, and filter screen 91 is located on this filtration reticulum 92.Be provided with spring seat 93 in the 3rd hydraulic fluid port 53 of valve pocket, this spring seat 93 leans with the rearward end of filtering reticulum 92, and second return unit 94 is a Returnning spring, and the axial pass trough inwall of the rear end of this Returnning spring and nonreturn valve core 9 offsets, and front end and spring seat 93 offset.Filter screen 91 can improve contamination resistance.
The front-end face of deciding iron 3 is provided with antifreeze plate 64, and, having plunger tube 24 on the prolongation pipe 22 of concentrating flux sleeve, antifreeze plate 64 and plunger tube 24 can play separated magnetic effect, reduce moving iron release time, shorten the shut-in time of valve, improve the responsiveness of valve.
Moving iron 4 axial hollows form passage 65 in, the one radially draining hole 41 of running through middle passage 65 is arranged in the middle part of moving iron 4, guide's spool 6 is located at passage 65 front ends in this by the sawtooth interference fit, particularly, guide's spool 6 has three road annular recess, is connected as a single entity by withholding moving iron 4 front-end faces then.Sawtooth interference linkage structure can strengthen the degree of combining closely of moving iron and guide's spool.First return unit 63 is the Returnning spring in the passage 65 in being located at, and the rear end of this Returnning spring and antifreeze plate 64 offset, and the ear end face of front end and guide's spool 6 offsets.
During coil 23 outages, allow fluid to flow to first hydraulic fluid port 11, flow to second hydraulic fluid port 12 by fluid from first hydraulic fluid port 11 simultaneously from second hydraulic fluid port 12; After coil 23 energisings, move behind the main valve plug, open the fluid passage that flows to second hydraulic fluid port 12 from first hydraulic fluid port 11, under this operating mode, the fluid that second hydraulic fluid port 12 flows to first hydraulic fluid port 11 only flows out from oil through 71 on a small quantity.Flow on the 4th hydraulic fluid port 54 directions mobile at the 3rd hydraulic fluid port 53 by fluid, when second hydraulic fluid port 12 is subjected to certain pressure, nonreturn valve core 9 receives that piston 8 promotes to move forward, the hydraulic control of one-way valve is than being 2.5:1 in the present embodiment, therefore the pressure of hydraulic control pipeline second hydraulic fluid port 12 should be 1/2.5 of the 3rd hydraulic fluid port 53 place's induced pressures at least, just can open passage fluid is flowed out from the 3rd hydraulic fluid port 53.Under static state or immunization with gD DNA vaccine, the spring pressure of Pilot operated check valve 0.4bar guarantees that valve port closes.
Change piston 8 back areas can guarantee that with the stress surface volume ratio of nonreturn valve core 9 front-end faces the user realizes the requirement of hydraulic control ratio in oil circuit, can improve the service behaviour of valve with this, reduce unnecessary energy loss in the oil circuit.
Claims (6)
1. a thread cartridge formula electric-controlled hydraulic lock is characterized in that comprising
Concentrating flux sleeve, hollow forms inner chamber, comprises the prolongation pipe that body and body extend back;
Decide iron, be located at aforesaid prolongation pipe rearward end;
Coil is coated on and aforementionedly decides iron and prolong the pipe outside, can make after the energising to decide iron and produce the magnetic field that attracts moving iron to move backward;
First return unit forces moving iron to keep proal trend all the time;
Valve seat, axial hollow and be located at the front end of aforementioned concentrating flux sleeve has first hydraulic fluid port and second hydraulic fluid port that the spaced radial at the axial port of front end and middle part is arranged,
Main valve plug, the rearward end that is limited in aforementioned valve seat also can move axially, and axially has second oil through that is used to be communicated with first hydraulic fluid port and hollow cavity that hollow cavity and front end have first oil through of axially open and take shape in sidewall;
Guide's spool is located on the aforementioned moving iron, has axially to stretch out moving iron forward and enter the hollow cavity of aforementioned main valve plug and front end and can open and close with first oil through of aforementioned main valve plug and cooperate;
Valve pocket is located at the front end of aforementioned valve seat, and front end has the 3rd hydraulic fluid port of axially open and the 4th hydraulic fluid port of middle part radial arrangement;
Piston, the rearward end that is limited in aforementioned valve pocket also can move axially also, and front end has an elongated portion;
Nonreturn valve core, be limited in the front end of aforementioned valve pocket and can move axially the stress surface of front end formation and aforementioned elongated portion contact matching, rear end formation axial pass trough, sidewall has the 3rd oil through that can realize break-make with aforementioned the 4th hydraulic fluid port, and the 3rd oil through runs through with axial pass trough and communicates; And
Second return unit forces the mobile backward trend of aforesaid nonreturn valve core maintenance so that the 3rd oil through and the 4th hydraulic fluid port are in blocking state all the time.
2. thread cartridge formula electric-controlled hydraulic lock according to claim 1 is characterized in that the 3rd hydraulic fluid port of described valve pocket filters reticulum from being fitted with one outside to inside, and a filter screen is located on this filtration reticulum.
3. thread cartridge formula electric-controlled hydraulic lock according to claim 2, it is characterized in that being provided with a spring seat in the 3rd hydraulic fluid port of described valve pocket, the rearward end of this spring seat and described filtration reticulum leans, described second return unit is a Returnning spring, the axial pass trough inwall of the rear end of this Returnning spring and nonreturn valve core offsets, and front end and aforesaid spring seat offset.
4. thread cartridge formula electric-controlled hydraulic lock according to claim 1 is characterized in that the described front-end face of deciding iron is provided with an antifreeze plate, and, have plunger tube on the prolongation pipe of described concentrating flux sleeve.
5. thread cartridge formula electric-controlled hydraulic lock according to claim 4, it is characterized in that the axial hollow of described moving iron forms passage in, the one radially draining hole of running through aforementioned middle passage is arranged in the middle part of aforementioned moving iron, described guide's spool is located at passage front end in aforementioned being somebody's turn to do by the sawtooth interference fit, described first return unit is the Returnning spring of being located in the aforementioned middle passage, the rear end of this Returnning spring and described antifreeze plate offset, and the ear end face of front end and described guide's spool offsets.
6. thread cartridge formula electric-controlled hydraulic lock according to claim 1, the front inner wall that it is characterized in that described valve seat forms internal thread, accordingly, described valve pocket rear end outer wall forms the outside thread with aforementioned internal thread threaded, and the rearward end of described valve pocket has the shoulder that ends of location valve seat front-end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102042908A CN102213242B (en) | 2011-07-19 | 2011-07-19 | Thread plug-in type electronic control hydraulic lock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102042908A CN102213242B (en) | 2011-07-19 | 2011-07-19 | Thread plug-in type electronic control hydraulic lock |
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| Publication Number | Publication Date |
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| CN102213242A true CN102213242A (en) | 2011-10-12 |
| CN102213242B CN102213242B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102042908A Active CN102213242B (en) | 2011-07-19 | 2011-07-19 | Thread plug-in type electronic control hydraulic lock |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851223A (en) * | 2012-12-07 | 2014-06-11 | 深圳市三好科技有限公司 | Three-loop logic valve |
| CN106438536A (en) * | 2016-08-30 | 2017-02-22 | 北京精密机电控制设备研究所 | Expandable and high-reliability hydraulic lock |
| CN106640803A (en) * | 2016-11-18 | 2017-05-10 | 浙江华益精密机械股份有限公司 | Hydraulic lock with flushing function |
| CN107345485A (en) * | 2017-07-25 | 2017-11-14 | 山东科技大学 | Hydraulic support pilot operated safety valve |
| CN108019392A (en) * | 2018-01-27 | 2018-05-11 | 宁波市博尔法液压有限公司 | A kind of hydraulic lock |
| CN110259751A (en) * | 2019-07-15 | 2019-09-20 | 宁波克泰液压有限公司 | Threaded insertion pilot is pressurized second level overflow valve |
| CN110285048A (en) * | 2019-07-19 | 2019-09-27 | 宁波克泰液压有限公司 | Screw thread inserting type speed sensitive load control valve |
| CN110439872A (en) * | 2019-08-19 | 2019-11-12 | 宁波善研液压有限公司 | A kind of tubular type hydraulic lock |
| CN111442009A (en) * | 2020-05-12 | 2020-07-24 | 杭州力龙液压有限公司 | Check valve component and hydraulic motor |
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| CN2212101Y (en) * | 1994-05-28 | 1995-11-08 | 兖州市圣达液压机械制造厂 | bidirectional hydraulic lock |
| US6017015A (en) * | 1996-10-15 | 2000-01-25 | Heilmeier & Weinlein Fabrik Fur Oel-Hydraulik Gmbh & Co. Kg | Magnetically operated drain valve of an electrohydraulic lifting module |
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| CN201125894Y (en) * | 2007-11-29 | 2008-10-01 | 贵州枫阳液压有限责任公司 | Multifunctional hydraulic lock |
| CN201810598U (en) * | 2010-09-26 | 2011-04-27 | 四川长江液压件有限责任公司 | Hydraulic one-way lock for crane descending valve |
| CN202132292U (en) * | 2011-07-19 | 2012-02-01 | 宁波克泰液压有限公司 | Threaded cartridge type electric control hydraulic lock |
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| DE3420214A1 (en) * | 1984-05-30 | 1985-12-05 | Robert Bosch Gmbh, 7000 Stuttgart | Directional control valve |
| CN2212101Y (en) * | 1994-05-28 | 1995-11-08 | 兖州市圣达液压机械制造厂 | bidirectional hydraulic lock |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851223B (en) * | 2012-12-07 | 2016-08-24 | 深圳市三好科技有限公司 | A kind of three loop logical valves |
| CN103851223A (en) * | 2012-12-07 | 2014-06-11 | 深圳市三好科技有限公司 | Three-loop logic valve |
| CN106438536A (en) * | 2016-08-30 | 2017-02-22 | 北京精密机电控制设备研究所 | Expandable and high-reliability hydraulic lock |
| CN106640803A (en) * | 2016-11-18 | 2017-05-10 | 浙江华益精密机械股份有限公司 | Hydraulic lock with flushing function |
| CN107345485A (en) * | 2017-07-25 | 2017-11-14 | 山东科技大学 | Hydraulic support pilot operated safety valve |
| CN108019392B (en) * | 2018-01-27 | 2024-04-23 | 宁波市博尔法液压有限公司 | Hydraulic lock |
| CN108019392A (en) * | 2018-01-27 | 2018-05-11 | 宁波市博尔法液压有限公司 | A kind of hydraulic lock |
| CN110259751A (en) * | 2019-07-15 | 2019-09-20 | 宁波克泰液压有限公司 | Threaded insertion pilot is pressurized second level overflow valve |
| CN110285048B (en) * | 2019-07-19 | 2024-03-19 | 宁波克泰液压有限公司 | Screw thread plug-in type speed sensitive load control valve |
| CN110285048A (en) * | 2019-07-19 | 2019-09-27 | 宁波克泰液压有限公司 | Screw thread inserting type speed sensitive load control valve |
| CN110439872A (en) * | 2019-08-19 | 2019-11-12 | 宁波善研液压有限公司 | A kind of tubular type hydraulic lock |
| CN110439872B (en) * | 2019-08-19 | 2024-04-05 | 宁波善研液压有限公司 | Tubular hydraulic lock |
| CN111442009A (en) * | 2020-05-12 | 2020-07-24 | 杭州力龙液压有限公司 | Check valve component and hydraulic motor |
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| CN102213242B (en) | 2013-12-11 |
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