CN102758807A - Electromagnetic positioning and pressure reducing type proportional pilot valve - Google Patents
Electromagnetic positioning and pressure reducing type proportional pilot valve Download PDFInfo
- Publication number
- CN102758807A CN102758807A CN2012102053076A CN201210205307A CN102758807A CN 102758807 A CN102758807 A CN 102758807A CN 2012102053076 A CN2012102053076 A CN 2012102053076A CN 201210205307 A CN201210205307 A CN 201210205307A CN 102758807 A CN102758807 A CN 102758807A
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- assembly
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- metering
- type proportional
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Abstract
The invention relates to an electromagnetic positioning and pressure reducing type proportional pilot valve, which comprises a valve body, a metering valve group capable of being automatically centered, a sealing assembly, an magnet and a magnetic isolation assembly, a disk assembly, a pressure reducing valve assembly, a handle switch assembly, a mounting plate, a dustproof cover, a spring and the like, wherein the sealing assembly is reliable to seal and resistant to pollution. The electromagnetic positioning and pressure reducing type proportional pilot valve is easy to implement, can greatly reduce the fault rate, improve the product reliability, reduce the production cost and improve the operation efficiency and has better market prospect.
Description
Technical field
The present invention relates to a kind of hydraulic element, relate more specifically to a kind of electromagnetic location decompression type proportional pilot valve, it is engineering machinery hydraulic system of working element such as loader, bulldozer: the guide's control gear in guide's pilot operated directional control valve valve group.
Background technique
Guide's control gear in the engineering machinery work system hydraulicdirectional control valve groups such as existing loader, bulldozer is derived from foreign technology, and existing this guide's control gear part is more, complex structure and assemble inconvenience, and kinematic pair lost efficacy because of wearing and tearing very easily damage; Easy magnetization in the stainless steel NULL working procedure and losing efficacy; Reduction valve modular construction volume is bigger, does over again because of the secondary assembling appears in nothing adjustment space in the assembly and adjustment; Metering spring is difficult to satisfy system's proportion requirement and easy plastic deformation and lost efficacy.
Summary of the invention
To the deficiency and the defective of existing technology, that the present invention provides is a kind of simple for structure, easy to process, good reliability, guide's control gear that rate of fault is low.
To achieve these goals; Technological scheme of the present invention does; A kind of electromagnetic location decompression type proportional pilot valve is provided, and it is made up of at a distance from magnetic assembly, the disc assembly that is difficult for abrasion, reduction valve assembly, bat-handle switch assembly, mounting plate, dust-proof cover and spring etc. valve body, self centering metering valve group, antipollution, reliable sealing black box, electromagnetism.
Preferably, the metering valve group comprises valve seat, metering valve core, metering spring, stop collar, deck.
Preferably, black box comprises pad and seal ring, packing holder.
Preferably, disc assembly comprises suction iron, pad assembly, disk, universal pole and universal base.
Preferably, the reduction valve assembly comprises relief pressure valve cartridge, relief spring, plug screw.
Preferably, electromagnet and separated magnetic assembly comprise pad, electromagnet and compound spacer.
The metering valve group has adopted the self-alignment structure; The metering valve core head directly is inserted in the hole of deck; Guide sleeve has guaranteed that metering valve core is in the central position, has simplified the fit of metering valve core, the fault that the elastic cylindrical pin of having avoided existing technology to adopt causes because of inefficacy.
Electromagnet changes spacer separated magnetic that composite material process, the fault of having avoided stainless steel parts owing to easy magnetization cause by the stainless steel parts that existing technology adopts at a distance from magnetic at a distance from the magnetic mode.
The reduction valve assembly has increased the adjustment space than existing technology, is beneficial to test adjustment and maintenance.
Replace the existing press strip that adopts with disc assembly, avoid press strip owing to the fault that pitfall lost efficacy and causes appears in friction.
Electromagnetic location decompression type proportional pilot valve of the present invention, rated pressure is 2.5MPa, is up to 5MPa, rated flow is 10L/Min.The required power controlling of pilot valve is less, and ratio function admirable, especially its operation are lighter, can alleviate operator's labor intensity significantly.
Electromagnetic location decompression type proportional pilot valve of the present invention is easy to implement, can reduce rate of fault greatly, improves product reliability, reduces production costs, and improves operating efficiency, and market prospects are preferably arranged.
Description of drawings
Fig. 1 shows the schematic representation of electromagnetic location decompression type proportional pilot valve general assembly.
Fig. 2 shows the schematic representation of metering valve group.
Fig. 3 shows the schematic representation of disc assembly.
Fig. 4 shows the schematic representation of reduction valve assembly.
Fig. 5 shows the schematic representation of electromagnet and separated magnetic assembly.
1, valve body, 2, valve seat, 3, metering valve core, 4, metering spring, 5, stop collar, 6, deck; 7, pad, 8, packing holder, 9, seal ring, 10, mounting plate, 11, cover plate, 12, guide sleeve; 13, inhale iron, 14, the copper ring washer, 15, the pad assembly, 16, disk, 17, the pad seat, 18, first plug screw; 19, relief pressure valve cartridge, 20, metering spring, 21, spring, 22, second plug screw, 23, electromagnet; 24, dust-proof cover, 25, universal pole, 26, universal base, 27, handle, 28, compound spacer
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained in further detail.
Fig. 1 shows the schematic representation of electromagnetic location decompression type proportional pilot valve general assembly.This pilot valve is made up of valve body, metering valve group, black box, reduction valve assembly, mounting plate, electromagnet and separated magnetic assembly, disc assembly, bat-handle switch assembly, dust-proof cover and spring.
Pilot valve hydraulic oil gets in the valve from the P mouth; When system did not work, hydraulic oil was got back to fuel tank from the T mouth, when system works; Operating grip; Make hydraulic oil get into control mouthful a or b mouth respectively, control multi-way valve then and turn to, realize the main frame swing arm promote, descend, float and rotating bucket on turn over and descend operating mode such as commentaries on classics.
Fig. 2 shows the schematic representation of metering valve group.The metering valve group comprises valve seat 2, metering valve core 3, metering spring 4, stop collar 5, deck 6.
The metering valve group is a vitals of realizing that this pilot valve hydraulic oil is exported in proportion; When operating grip moves; Guiding metering valve core 3 moves up and down, and hydraulic coupling and spring force interact and reach transient equiliblium, thereby realizes from the P mouth to control mouthful a/b mouth ratio oil transportation.
Black box comprises pad 7, packing holder 8 and C shape seal ring 9.
Fig. 3 shows the schematic representation of disc assembly.Disc assembly comprises inhales iron 13, copper ring washer 14, pad assembly 15, disk 16, pad seat 17, universal pole 25 and universal base 26.
Fig. 4 shows the schematic representation of reduction valve assembly.The reduction valve assembly comprises first plug screw 18, relief pressure valve cartridge 19, relief spring 21 and second plug screw 22.
When pilot valve is in the floating position, pilot valve hydraulic oil will be pushed relief pressure valve cartridge open, the off-load of control multi-way valve, thus realize float function.
Fig. 5 shows the schematic representation of electromagnet and separated magnetic assembly.Electromagnet and separated magnetic assembly comprise inhales iron 13, pad assembly 15, electromagnet 23 and compound spacer 28.At a distance from the magnetic assembly is the compound spacer that a kind of composite material is processed.Electromagnet 23 magnetic lines of force are separated by compound spacer 28, and major function is when electromagnet 23 energisings, and the magnetic field in the middle of the partition electromagnet 23 guarantees that the pads in the middle of the electromagnet 23 can flexible motion.
Claims (2)
1. electromagnetic location decompression type proportional pilot valve; Form by valve body, metering valve group, black box, electromagnet and separated magnetic assembly, disc assembly, reduction valve assembly, bat-handle switch assembly, mounting plate, dust-proof cover and spring etc.; Said metering valve group comprises valve seat, metering valve core, metering spring, stop collar, deck and spacer shell; Said black box comprises pad, packing holder and C shape seal ring; Said disc assembly comprises inhales iron, copper ring washer, pad assembly, disk, pad seat, universal pole and universal base; Said reduction valve assembly comprises relief pressure valve cartridge, relief spring and plug screw, and said electromagnet and separated magnetic assembly comprise pad, guide sleeve, electromagnet and compound spacer.
2. electromagnetic location decompression type proportional pilot valve according to claim 1, wherein said reduction valve assembly has the adjustment space, debugging convenient for assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102053076A CN102758807A (en) | 2012-06-19 | 2012-06-19 | Electromagnetic positioning and pressure reducing type proportional pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102053076A CN102758807A (en) | 2012-06-19 | 2012-06-19 | Electromagnetic positioning and pressure reducing type proportional pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758807A true CN102758807A (en) | 2012-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102053076A Pending CN102758807A (en) | 2012-06-19 | 2012-06-19 | Electromagnetic positioning and pressure reducing type proportional pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758807A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425897A (en) * | 2015-11-20 | 2016-03-23 | 宁波弗莱格液压有限公司 | Electromagnetic positioning handle |
| CN112664502A (en) * | 2020-12-30 | 2021-04-16 | 山推工程机械股份有限公司 | Control handle and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11218258A (en) * | 1998-02-02 | 1999-08-10 | Kenji Masuda | Electromagnetic type pilot valve with lever |
| JP2001173830A (en) * | 1999-12-16 | 2001-06-29 | Techno Excel Co Ltd | Solenoid feed valve device |
| CN2454581Y (en) * | 2000-08-28 | 2001-10-17 | 广西柳工集团有限公司 | Single-bar operated multi-peace type guide valve |
| CN201574993U (en) * | 2009-12-31 | 2010-09-08 | 斗山工程机械（山东）有限公司 | Single-rod operated guide valve |
| CN201991860U (en) * | 2011-04-06 | 2011-09-28 | 邵燕平 | Four-way manual pilot valve |
-
2012
- 2012-06-19 CN CN2012102053076A patent/CN102758807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11218258A (en) * | 1998-02-02 | 1999-08-10 | Kenji Masuda | Electromagnetic type pilot valve with lever |
| JP2001173830A (en) * | 1999-12-16 | 2001-06-29 | Techno Excel Co Ltd | Solenoid feed valve device |
| CN2454581Y (en) * | 2000-08-28 | 2001-10-17 | 广西柳工集团有限公司 | Single-bar operated multi-peace type guide valve |
| CN201574993U (en) * | 2009-12-31 | 2010-09-08 | 斗山工程机械（山东）有限公司 | Single-rod operated guide valve |
| CN201991860U (en) * | 2011-04-06 | 2011-09-28 | 邵燕平 | Four-way manual pilot valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425897A (en) * | 2015-11-20 | 2016-03-23 | 宁波弗莱格液压有限公司 | Electromagnetic positioning handle |
| CN112664502A (en) * | 2020-12-30 | 2021-04-16 | 山推工程机械股份有限公司 | Control handle and control method thereof |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |