CN102213242B - Thread plug-in type electronic control hydraulic lock - Google Patents
Thread plug-in type electronic control hydraulic lock Download PDFInfo
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- CN102213242B CN102213242B CN2011102042908A CN201110204290A CN102213242B CN 102213242 B CN102213242 B CN 102213242B CN 2011102042908 A CN2011102042908 A CN 2011102042908A CN 201110204290 A CN201110204290 A CN 201110204290A CN 102213242 B CN102213242 B CN 102213242B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 25
- 229910052742 iron Inorganic materials 0.000 claims abstract 12
- 230000004907 flux Effects 0.000 claims abstract 5
- 239000012530 fluid Substances 0.000 claims 9
- 238000001914 filtration Methods 0.000 claims 3
- 210000003660 reticulum Anatomy 0.000 claims 3
- 230000002528 anti-freeze Effects 0.000 claims 2
- 241001397306 Proales Species 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
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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 threaded cartridge type electric control hydraulic lock.Can be applicable to the loops such as lifting machine, lift requires in the hydraulic system of locking.
Background technique
Conventional hydraulic is locked in hydraulic system, because the variation of load causes fluid control pressure to change thereupon; And, due to acceleration, fluid control pressure can alter a great deal.The variation of fluid control pressure can cause the system oil cylinder acutely to be shaken, need to use an electric control hydraulic lock, electromagnet is initiatively opened spool for this reason, keeps spool often to open, thereby causing the system 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 larger at present, complicated trouble is installed, system is difficult to integrated, the processing more complicated, and the flexibility of control reaction is lower, and holistic cost is higher.
Summary of the invention
Technical problem to be solved by this invention is that a kind of threaded cartridge type electric control hydraulic lock of compact structure is provided for the above-mentioned state of the art.
Technical problem to be solved by this invention is to provide that a kind of assembly and disassembly is convenient and swift, and Long-Term Properties is reliable and stable, the threaded cartridge type electric control hydraulic lock that maintenance rate is low.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of threaded cartridge type electric control hydraulic lock is characterized in that comprising
Concentrating flux sleeve, hollow forms inner chamber, comprises the extension tube that body and body extend back;
Determine iron, be located at aforesaid extension tube rearward end;
Coil, be coated on aforementioned iron and the extension tube outside of determining, and can make to determine iron after energising and produce and attract moving iron mobile magnetic field backward;
The first return unit, force moving iron to keep proal trend all the time;
Valve seat, axial hollow be located at the front end of aforementioned concentrating flux sleeve, have the first hydraulic fluid port and the second hydraulic fluid port that the spaced radial at the axial port of front end and middle part is arranged,
Main valve plug, be limited in aforementioned valve seat rearward end and can move axially, axially have hollow cavity front end there is the first oil through of axially open and take shape in sidewall for being communicated with the second oil through of the first hydraulic fluid port and hollow cavity;
Guide's spool, be located on aforementioned moving iron, has axially to stretch out forward hollow cavity the front end that moving iron enters aforementioned main valve plug and can open and close and coordinate with the first oil through of aforementioned main valve plug;
Valve pocket, be 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 front end and have an elongated portion;
Nonreturn valve core, be limited in the front end of aforementioned valve pocket and can move axially, front end forms and contacts the stress surface coordinated with aforementioned elongated portion, and rear end forms axial pass trough, sidewall has and can realize the 3rd oil through of break-make with aforementioned the 4th hydraulic fluid port, and the 3rd oil through runs through and communicates with axial pass trough; And
The second return unit, force all the time aforesaid nonreturn valve core to keep mobile backward trend so that the 3rd oil through and the 4th hydraulic fluid port in blocking state.
For improving anti-contamination level, the 3rd hydraulic fluid port of described valve pocket is from being fitted with a filtration reticulum 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 the 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 for filter screen is set, and it is two for the limit spring seat.
Further, the described front-end face of determining iron is provided with an antifreeze plate, and, there is plunger tube on the extension tube 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, then by withholding moving iron front-end face, is connected as a single entity.Described the first return unit is the Returnning spring of being located in 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 ending shoulder of location valve seat front-end face.Valve seat is threaded with after the valve pocket gluing again, and this Placement can guarantee that both combine closely, and can bear higher pressure, is difficult for throwing off, and guarantees well operation, the jack axial dimension is required to reduce simultaneously.
Compared with prior art, the invention has the advantages that: by electric control structure, realize the control of hydraulic lock is discharged to load, compact overall structure, multi-functional integrated, volume is little, and assembly and disassembly is convenient and swift, and Long-Term Properties is reliable and stable, maintenance rate is low, internal leakage is little, and simultaneously, the present invention can be applied to the system that load variations is large, actuator's jitter phenomenon can be eliminated, and system is relatively steady; Compare existing mounting structure, holistic cost is lower again, is quick on the draw.
The accompanying drawing explanation
Fig. 1 is the example structure schematic diagram.
The combined amplifier figure that Fig. 2 is valve pocket and valve seat in Fig. 1.
Fig. 3 moves the combined amplifier figure of iron and guide's spool in Fig. 1.
The combined amplifier figure that Fig. 4 is concentrating flux sleeve and plunger tube in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the threaded cartridge type electric control hydraulic lock in the present embodiment comprise concentrating flux sleeve 2, determine iron 3, moving iron 4, coil 23, the first return unit 63, main valve plug 7, guide's spool 6, valve pocket 5, piston 8, valve seat 1, nonreturn valve core 9, the second return unit 94, spring seat 93 and filter reticulum 92.
Concentrating flux sleeve 2 hollows form inner chamber, comprise the extension tube 22 that body 21 and body 21 extend back, determine iron 3 and be located at extension tube 22 rearward end, coil 23 is coated on aforementioned determine iron and the extension tube outside, can make to determine iron after energising and produce and attract moving iron mobile magnetic field backward, the first return unit 63 forces moving iron 4 to keep proal trend all the time.
The axial hollow of valve seat 1 also is located at the front end of concentrating flux sleeve 2, there is the first hydraulic fluid port 11 and the 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 be limited in valve seat 1 rearward end and can move axially, axially have hollow cavity front end there is the first oil through 71 of axially open and take shape in sidewall for being communicated with the second oil through 72 of the first hydraulic fluid port 11 and hollow cavity.
Guide's spool 6 is located on moving iron 4, has axially to stretch out forward hollow cavity the front end 61 that moving iron 4 enters main valve plug 7 and can open and close and coordinate with the first oil through 71 of main valve plug, 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 ending shoulder 55 of location valve seat 1 front-end face.Valve seat 1 is threaded with after valve pocket 5 gluings again, and this Placement can guarantee that both combine closely, and can bear higher pressure, 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 and contacts the stress surface coordinated with elongated portion 81, and rear end forms axial pass trough, and sidewall has can realize with the 4th hydraulic fluid port 54 the 3rd oil through 95 of break-make, the 3rd oil through 95 runs through and communicates with axial pass trough
The second return unit 94 force all the time nonreturn valve core 9 to keep mobile backward trend so that the 3rd oil through 95 and the 4th hydraulic fluid port 54 in blocking state.
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 the 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 determining iron 3 is provided with antifreeze plate 64, and, thering is plunger tube 24 on the extension tube 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.
The axial hollow of moving iron 4 forms 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, then by withholding moving iron 4 front-end faces, is connected as a single entity.Sawtooth interference linkage structure can strengthen the degree of combining closely of moving iron and guide's spool.The first return unit 63 is the Returnning spring of being located in middle passage 65, 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 outage, allow fluid to flow to the first hydraulic fluid port 11 from the second hydraulic fluid port 12, end fluid simultaneously and flow to the second hydraulic fluid port 12 from the first hydraulic fluid port 11; After coil 23 energisings, after main valve plug, move, open the fluid passage that flows to the second hydraulic fluid port 12 from the first hydraulic fluid port 11, under this operating mode, the fluid that the second hydraulic fluid port 12 flows to the first hydraulic fluid port 11 only flows out from oil through 71 on a small quantity.Flowing to cut-off fluid on the 4th hydraulic fluid port 54 directions at the 3rd hydraulic fluid port 53 flows, when the second hydraulic fluid port 12 is subject to certain pressure, nonreturn valve core 9 receives that piston 8 promotes to move forward, in the present embodiment, the hydraulic control of one-way valve is than being 2.5:1, therefore the pressure of hydraulic control pipeline the second hydraulic fluid port 12 at least should be 1/2.5 of the 3rd hydraulic fluid port 53 place's induced pressures, 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 the rear area of piston 8 and 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, with this, can improve the service behaviour of valve, reduce unnecessary energy loss in oil circuit.
Claims (6)
1. a threaded cartridge type electric control hydraulic lock, is characterized in that comprising
Concentrating flux sleeve, hollow forms inner chamber, comprises the extension tube that body and body extend back;
Determine iron, be located at aforesaid extension tube rearward end;
Coil, be coated on aforementioned iron and the extension tube outside of determining, and can make to determine iron after energising and produce and attract moving iron mobile magnetic field backward;
The first return unit, force moving iron to keep proal trend all the time;
Valve seat, axial hollow be located at the front end of aforementioned concentrating flux sleeve, have the first hydraulic fluid port and the second hydraulic fluid port that the spaced radial at the axial port of front end and middle part is arranged,
Main valve plug, be limited in aforementioned valve seat rearward end and can move axially, axially have hollow cavity and front end there is the first oil through of axially open and take shape in sidewall for being communicated with the second oil through of the first hydraulic fluid port and hollow cavity;
Guide's spool, be located on aforementioned moving iron, has axially to stretch out forward hollow cavity and the front end that moving iron enters aforementioned main valve plug and can open and close and coordinate with the first oil through of aforementioned main valve plug;
Valve pocket, be 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, be limited in the rearward end of aforementioned valve pocket and can move axially and front end has an elongated portion;
Nonreturn valve core, be limited in the front end of aforementioned valve pocket and can move axially, front end forms and contacts the stress surface coordinated with aforementioned elongated portion, and rear end forms axial pass trough, sidewall has and can realize the 3rd oil through of break-make with aforementioned the 4th hydraulic fluid port, and the 3rd oil through runs through and communicates with axial pass trough; And
The second return unit, force all the time aforesaid nonreturn valve core to keep mobile backward trend so that the 3rd oil through and the 4th hydraulic fluid port in blocking state.
2. threaded cartridge type electric control hydraulic lock according to claim 1, is characterized in that the 3rd hydraulic fluid port of described valve pocket is from being fitted with a filtration reticulum outside to inside, and a filter screen is located on this filtration reticulum.
3. threaded cartridge type electric control 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 the 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. threaded cartridge type electric control hydraulic lock according to claim 1, is characterized in that the described front-end face of determining iron is provided with an antifreeze plate, and, there is plunger tube on the extension tube of described concentrating flux sleeve.
5. threaded cartridge type electric control 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 the first return unit is the Returnning spring of being located in 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. threaded cartridge type electric control 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 ending shoulder 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN102213242A CN102213242A (en) | 2011-10-12 |
| CN102213242B true 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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| CN110439872B (en) * | 2019-08-19 | 2024-04-05 | 宁波善研液压有限公司 | Tubular hydraulic lock |
| CN111442009B (en) * | 2020-05-12 | 2024-09-10 | 杭州力龙液压有限公司 | Check valve assembly and hydraulic motor |
| CN114876903B (en) * | 2022-05-06 | 2025-07-04 | 潍坊力创电子科技有限公司 | Pressure regulating system and pressure regulating method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| EP0918678B1 (en) * | 1996-08-24 | 2000-08-30 | Robert Bosch Gmbh | Electrohydraulic control device |
| EP0845602B1 (en) * | 1996-12-02 | 2001-12-19 | Robert Bosch Gmbh | Electrohydraulic control device |
| CN1989364A (en) * | 2004-07-12 | 2007-06-27 | 迪芬巴赫控制系统股份有限公司 | Releasable non-return valve |
| 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 |
-
2011
- 2011-07-19 CN CN2011102042908A patent/CN102213242B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| EP0918678B1 (en) * | 1996-08-24 | 2000-08-30 | Robert Bosch Gmbh | Electrohydraulic control device |
| 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 |
| EP0845602B1 (en) * | 1996-12-02 | 2001-12-19 | Robert Bosch Gmbh | Electrohydraulic control device |
| CN1989364A (en) * | 2004-07-12 | 2007-06-27 | 迪芬巴赫控制系统股份有限公司 | Releasable non-return valve |
| 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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| Publication number | Publication date |
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| CN102213242A (en) | 2011-10-12 |
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