CN103925252A - Electrically-controlled inching valve - Google Patents
Electrically-controlled inching valve Download PDFInfo
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- CN103925252A CN103925252A CN201410083595.1A CN201410083595A CN103925252A CN 103925252 A CN103925252 A CN 103925252A CN 201410083595 A CN201410083595 A CN 201410083595A CN 103925252 A CN103925252 A CN 103925252A
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- valve
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- oil
- proportional flow
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
An electrically-controlled inching valve comprises a valve body. A moving spool is mounted in the valve body. An electrohydraulic proportional overflow valve mount and an end cover plate are mounted at two ends of the valve body respectively. A pressure spring abutted to one end of the moving spool is mounted in the end cover plate. An electrohydraulic proportional flow valve with a control coil is mounted on the electrohydraulic proportional overflow valve mount. The valve body is provided with an oil incoming passage, an oil outgoing passage and an oil return passage; the passages are communicated with corresponding circular grooves of the moving spool. The oil outgoing passage is communicated with an oil inlet of the electrohydraulic proportional flow valve and the end, at one end of the electrohydraulic proportional overflow valve mount, of the moving spool through damping small ducts in the valve body. The electrically-controlled inching valve has the advantages that the valve is simple in structure and convenient and reliable to use, sliding abrasion condition of a friction plate in a clutch can be controlled effectively, remote operation is achieved, wireless remote control under special conditions such as operation in unmanned submersibles is achieved, and operational response is fast, flexible and reliable.
Description
Technical field
What the present invention relates to is the inching valve that a kind of electric-hydraulic proportion is controlled, be mainly used on boats and ships and other transmission devices with wet type hydraulic friction clutches, can continuously change within the specific limits the pilot pressure of clutch, make clutch in different sliding wear states, belong to pressure controlled valve technical field.
Background technique
Existingly for the fine motion control valve in marine transmission, be essentially mechanical type, it changes pressure by the rotation of mechanical handle, and ship-handling people carrys out manipulator robot handle by longer massage flexible axle, and its shortcoming is: be not suitable for remote-controlled operation; Can not realize the Wireless remote control under special operation condition, as unpiloted submersible etc.; React quick not.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and provide a kind of employing electric-controlled type pressure regulation technology, can conveniently realize the fine motion of marine transmission is controlled, meet boats and ships at specific operation, as pull in to shore, control the automatically controlled inching valve requiring under fire-fighting, the situation such as fish.
The object of the invention is to complete by following technical solution: described automatically controlled inching valve, it comprises the valve body that moving valve core is housed in, the two ends of this valve body are separately installed with electricity liquid ratio relief valve fitting seat and end casing; The pressure spring that one top is pressed in moving valve core one end is installed in described end casing, on described electricity liquid ratio relief valve fitting seat, the electro-hydraulic proportional flow valve with control coil is installed; On described valve body, be respectively arranged with moving valve core on oil inlet passage, oil discharge passage and the drainback passage of corresponding annular groove UNICOM; Described oil discharge passage is communicated with respectively with the end that filler opening and the moving valve core of electro-hydraulic proportional flow valve are positioned at electricity liquid ratio relief valve fitting seat one end by the damping hole road arranging in valve body.
The end face that described valve body two ends are connected with end casing with electricity liquid ratio relief valve fitting seat is respectively arranged with and can guarantees to be mounted with the valve pocket of moving valve core and the hydraulic seal of outside seal; Described electro-hydraulic proportional flow valve is a kind of in screw thread inserting type, straight moving, seat valve formula Hydraulic Relief Valve, and this electro-hydraulic proportional flow valve is provided with filler opening and oil outlet, and filler opening and oil outlet direct UNICOM when described control coil no current passes through; Described electro-hydraulic proportional flow valve also communicates with the drainback passage arranging on valve body by oil outlet.
The present invention is specially adapted on boats and ships and other transmission devices with wet type hydraulic friction clutches, can continuously change within the specific limits the pilot pressure of clutch, make clutch in different sliding wear states, thereby reach the object of electrodeless adjusting transmission device output speed; It has simple in structure, easy to use and reliable, effectively the sliding wear state of solenoidoperated cluthes inner attrition piece, can realize remote-controlled operation, and the Wireless remote control under special operation condition, as unpiloted submersible etc., and make the features such as operant response is quick, flexible, reliable.
Accompanying drawing explanation
Fig. 1 is hydraulic principle schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1,2, automatically controlled inching valve of the present invention, be applicable on boats and ships and other transmission devices with wet type hydraulic friction clutches, it comprises the valve body 5 that moving valve core 6 is housed in, and the two ends of this valve body 5 are separately installed with electricity liquid ratio relief valve fitting seat 9 and end casing 1; The pressure spring 2 that one top is pressed in moving valve core 6 one ends is installed in described end casing 1, the electro-hydraulic proportional flow valve 8 with control coil is installed on described electricity liquid ratio relief valve fitting seat 9; On described valve body 5, be respectively arranged with moving valve core 6 on oil inlet passage 12, oil discharge passage 11 and the drainback passage 4 of corresponding annular groove UNICOM, oil discharge passage is wherein directly connected to clutch; Described oil discharge passage 11 is communicated with respectively with the end that filler opening and the moving valve core 6 of electro-hydraulic proportional flow valve 8 are positioned at electricity liquid ratio relief valve fitting seat 9 one end by the damping hole road arranging in valve body.
The end face that valve body of the present invention 5 two ends are connected with end casing 1 with electricity liquid ratio relief valve fitting seat 9 is respectively arranged with the hydraulic seal 3,7 that can guarantee to be mounted with moving valve core 6 valve pockets and outside sealing; Described electro-hydraulic proportional flow valve 8 is a kind of of screw thread inserting type, straight moving, seat valve formula Hydraulic Relief Valve, and this electro-hydraulic proportional flow valve 8 is provided with filler opening and oil outlet, and filler opening and oil outlet direct UNICOM when described control coil no current passes through; Described electro-hydraulic proportional flow valve 8 also communicates with the drainback passage 4 arranging on valve body 5 by oil outlet.
When electro-hydraulic proportional flow valve 8(or proportional pressure control valve) coil in while not having electric current to pass through, the direct UNICOM of the oil inlet passage of electro-hydraulic proportional flow valve 8 and oil discharge passage, and communicate with the drainback passage 4 of valve body 5, moving valve core 6 right-hand member cavitys do not have pressure (back pressure is in zero situation), under the effect of spring force, the low order end of moving valve core 6 in valve body, now the oil inlet passage on valve body 12 and oil discharge passage 11 directly communicate by the annular groove of moving valve core 6, the pressure at oil inlet and outlet place equates, inching valve does not play regulatory role oil liquid pressure, the clutch of gear-box is in complete bonding state.
When operator changes the electric current in electro-hydraulic proportional flow valve 8 control coils, variation along with size of current, flow by damping hole road 10 fluid also changes thereupon, the pressure reduction that causes 10 front and back, damping hole road changes, the pressure of moving valve core 6 right-hand member cavitys changes simultaneously, moving valve core 6 (or right) movement left under the effect of spring force, the size of regulation valve body oil discharge passage at any time, the oil discharge passage pressure of Shi Yu clutch oil cylinder UNICOM reaches effective regulation and control, change the pressure of clutch oil cylinder, thereby controlled the sliding wear state of friction plate.When oil inlet passage does not have fluid to enter, the fluid in clutch oil cylinder can flow to oil inlet passage 12 by oil discharge passage 11 and carry out pressure release.
The foregoing is only these specific embodiments of the invention, but structure characteristic of the present invention is not limited to this, any those skilled in the art is in the field of the invention, and the variation of doing or modification are all encompassed among the scope of the claims of the present invention.
Claims (2)
1. an automatically controlled inching valve, it comprises the valve body (5) that moving valve core (6) are housed in, the two ends of this valve body (5) are separately installed with electricity liquid ratio relief valve fitting seat (9) and end casing (1); It is characterized in that, in described end casing (1), the pressure spring (2) that a top is pressed in moving valve core (6) one ends is installed, the electro-hydraulic proportional flow valve (8) with control coil is installed on described electricity liquid ratio relief valve fitting seat (9); On described valve body (5), be respectively arranged with oil inlet passage (12), oil discharge passage (11) and drainback passage (4) with the above corresponding annular groove of moving valve core (6) UNICOM; Described oil discharge passage (11) is communicated with respectively with the end that filler opening and the moving valve core (6) of electro-hydraulic proportional flow valve (8) are positioned at electricity liquid ratio relief valve fitting seat (9) one end by the damping hole road arranging in valve body.
2. automatically controlled inching valve according to claim 1, is characterized in that end face that described valve body (5) two ends are connected with end casing (1) with electricity liquid ratio relief valve fitting seat (9) is respectively arranged with can guarantee to be mounted with the valve pocket of moving valve core (6) and the hydraulic seal of outside seal (3,7); Described electro-hydraulic proportional flow valve (8) is a kind of in screw thread inserting type, straight moving, seat valve formula Hydraulic Relief Valve, this electro-hydraulic proportional flow valve (8) is provided with filler opening and oil outlet, and filler opening and oil outlet direct UNICOM when described control coil no current passes through; Described electro-hydraulic proportional flow valve (8) also communicates by the upper drainback passage arranging of oil outlet and valve body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083595.1A CN103925252B (en) | 2014-03-10 | 2014-03-10 | Electrically-controlled inching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083595.1A CN103925252B (en) | 2014-03-10 | 2014-03-10 | Electrically-controlled inching valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103925252A true CN103925252A (en) | 2014-07-16 |
| CN103925252B CN103925252B (en) | 2017-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410083595.1A Active CN103925252B (en) | 2014-03-10 | 2014-03-10 | Electrically-controlled inching valve |
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| CN (1) | CN103925252B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751866A (en) * | 1986-10-03 | 1988-06-21 | Caterpillar Inc. | Ratio valve to control unloading of modulating relief valve |
| CN2617982Y (en) * | 2003-05-13 | 2004-05-26 | 浙江临海海宏集团有限公司 | Two front and one rear electric and hydraulic speed control valve |
| CN101896752A (en) * | 2008-05-29 | 2010-11-24 | 爱信艾达株式会社 | Solenoid valve device |
| US20100300828A1 (en) * | 2009-06-01 | 2010-12-02 | Ford Global Technologies Llc | Dual-Stage Regulator Valve Assembly |
| CN202132300U (en) * | 2011-07-15 | 2012-02-01 | 朱国胜 | Electrically controlled screw-in cartridge bidirectional pressure compensation flow valve |
| CN202558568U (en) * | 2012-03-30 | 2012-11-28 | 浙江海宏液压科技股份有限公司 | Electrohydraulic variable-speed operating valve for forklift |
| CN103206556A (en) * | 2013-04-27 | 2013-07-17 | 浙江海宏液压科技股份有限公司 | Control valve and electrohydraulic proportional control valve with same |
| CN203743110U (en) * | 2014-03-10 | 2014-07-30 | 杭州前进齿轮箱集团股份有限公司 | Electric control inching valve |
-
2014
- 2014-03-10 CN CN201410083595.1A patent/CN103925252B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751866A (en) * | 1986-10-03 | 1988-06-21 | Caterpillar Inc. | Ratio valve to control unloading of modulating relief valve |
| CN2617982Y (en) * | 2003-05-13 | 2004-05-26 | 浙江临海海宏集团有限公司 | Two front and one rear electric and hydraulic speed control valve |
| CN101896752A (en) * | 2008-05-29 | 2010-11-24 | 爱信艾达株式会社 | Solenoid valve device |
| US20100300828A1 (en) * | 2009-06-01 | 2010-12-02 | Ford Global Technologies Llc | Dual-Stage Regulator Valve Assembly |
| CN202132300U (en) * | 2011-07-15 | 2012-02-01 | 朱国胜 | Electrically controlled screw-in cartridge bidirectional pressure compensation flow valve |
| CN202558568U (en) * | 2012-03-30 | 2012-11-28 | 浙江海宏液压科技股份有限公司 | Electrohydraulic variable-speed operating valve for forklift |
| CN103206556A (en) * | 2013-04-27 | 2013-07-17 | 浙江海宏液压科技股份有限公司 | Control valve and electrohydraulic proportional control valve with same |
| CN203743110U (en) * | 2014-03-10 | 2014-07-30 | 杭州前进齿轮箱集团股份有限公司 | Electric control inching valve |
Also Published As
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|---|---|
| CN103925252B (en) | 2017-01-18 |
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