CN102141055B - Hydraulic-control throttling hydraulic valve and application thereof - Google Patents
Hydraulic-control throttling hydraulic valve and application thereof Download PDFInfo
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- CN102141055B CN102141055B CN2011100449252A CN201110044925A CN102141055B CN 102141055 B CN102141055 B CN 102141055B CN 2011100449252 A CN2011100449252 A CN 2011100449252A CN 201110044925 A CN201110044925 A CN 201110044925A CN 102141055 B CN102141055 B CN 102141055B
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Abstract
The invention relates to a hydraulic-control throttling hydraulic valve which comprises a valve body, a slide valve cavity, a slide valve core and a spring, wherein two oil ports and one liquid control port on the valve body are all provided with pipe joints. The hydraulic-control throttling hydraulic valve is characterized in that a slide block is arranged on the slide valve core, and the outer diameter of the slide block is matched with the slide valve cavity; one end of the slide block is provided with a spring cavity, one end of the spring is arranged in the spring cavity, and the other end abuts against the end wall of the slide valve cavity; the other end of the slide block is provided with a boss with the diameter less than the inner diameter of the slide valve cavity, the top of the boss abuts against an end cap on the end part of the slide valve cavity, a cavity is formed between the boss and the inner wall of the slide valve cavity, and the liquid control port is communicated with the cavity; two oil ports are communicated with the slide valve cavity, and when the slide valve core moves, the main channels between the two oil ports are mutually communicated or blocked by the slide block; and a through smooth throttling channel is also arranged between the two oil ports.
Description
Technical field
The present invention relates to a kind of throttling hydraulic valve and application thereof, especially a kind of liquid control throttling hydraulic valve that the wet type hydraulic pressure multi-disc friction clutch of marine gearbox inside is controlled that is exclusively used in, belong to a kind of parts of controlling wet type hydraulic pressure multi-disc friction clutch operating mode.
Background technique
Clutch is requisite equipment between marine gearbox and propeller hub, and in the boats and ships of fixing oar, gear-box need to change by reversing clutch the moving direction of blade.
Along with social development, the application percentage of controllable pitch propeller De Jiang Grains in boats and ships increases sharply, and follow it the marine gearbox that clutch (refering in particular to wet type hydraulic pressure multi-disc friction clutch in this patent, lower same) contained in inside to occur, the whole boats and ships industry forward tuning for Controllable Pitch Propeller epoch stride forward.In the marine gearbox that contains clutch in this inside, the operating mode of clutch is controlled by the flow of lubricant oil, no matter in which kind of operating mode, all needs to have lubricant oil to its cooling and lubricating, and its difference only is the demand difference of lubricant oil.In actual use, we find, when needs off the row (making clutch separation), the lubricant oil that offers clutch due to existing hydrovalve is too much, tend to cause outside friction disc in clutch not throw off fully, produce the band row phenomenon of often saying in the industry, this operation for tuning for Controllable Pitch Propeller often has a negative impact.
Summary of the invention
The object of the invention is to: can not carry out the practical problem of effectively controlling according to the lubricant oil oil mass of marine gearbox internal clutch for existing hydrovalve, a kind of new liquid control throttling hydraulic valve is provided.
The object of the present invention is achieved like this: a kind of liquid control throttling hydraulic valve, comprise valve body, piston chamber, sliding spool, spring, on valve body, two hydraulic fluid ports and a hydraulic control mouth are equipped with pipe joint, and it is characterized in that: sliding spool is provided with slide block, slide block external diameter and piston chamber coupling; One end of slide block is provided with spring chamber, and spring one end is placed in described spring chamber, and the other end is butted on the piston chamber end wall; The other end of slide block is the boss that diameter is less than the piston chamber internal diameter, and the boss top is butted on the plug of piston chamber end, between boss and piston chamber inwall, forms chamber, and hydraulic control mouth and described chamber are linked up; Two hydraulic fluid ports are all linked up with piston chamber, the slide block in described sliding spool or block two hydraulic fluid ports, or deviate from two hydraulic fluid ports; Also be provided with unimpeded all the time throttling passage between two hydraulic fluid ports.
In the present invention: the two ends of sliding spool are slide block, and the external diameter of two slide blocks all mates with piston chamber, and the stage casing between the slide block of two ends is the zone that diameter is less than the piston chamber internal diameter; Described spring chamber is positioned at an end slide block, and described boss is positioned at the end of the other end slide block; Slide block in described sliding spool or block two hydraulic fluid ports, or make two hydraulic fluid ports zones between two slide blocks simultaneously.
In the present invention: between described two hydraulic fluid ports, eventually in unimpeded throttling passage, be provided with the amount of restriction metering needle, the stream oil sectional area>=0.8mm of the minimum throttling passage of amount of restriction metering needle restriction
2.
A kind of application of above-mentioned liquid control throttling hydraulic valve, it is characterized in that: the work loop that two hydraulic fluid ports on valve body is serially connected in to wet type hydraulic pressure multi-disc friction clutch, drive sliding spool by the hydraulic pressure size that changes the hydraulic control mouth, in the sliding spool motion, described slide block makes main passage between two hydraulic fluid ports communicate with each other or block, and changes the operating mode of wet type hydraulic pressure multi-disc friction clutch; Described throttling passage is always wet type hydraulic pressure multi-disc friction clutch cutting oil is provided.
The invention has the advantages that: owing between the filler opening of hydrovalve and oil outlet, being provided with unimpeded all the time throttling passage, enter the flow of lubrication of clutch in the time of can limiting off the row by throttling passage when slide block is blocked filler opening and oil outlet simultaneously, guaranteeing under the prerequisite reliable cooling to clutch, avoiding occurring band row phenomenon; Because the elastic force of the hydraulic pressure by the hydraulic control mouth and spring is controlled sliding spool, by sliding spool control filler opening and oil outlet main passage, compact structure not only, and control convenient, reliable operation, highly sensitive.
The accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1, valve body, 2, sliding spool, 3, spring, 4, the piston chamber end part plug, 5, the technique plug, 6, throttling passage, 7, piston chamber, the 8, first hydraulic fluid port pipe joint, the 9, second hydraulic fluid port pipe joint, 10, hydraulic control mouth pipe joint.
Embodiment
Accompanying drawing discloses the concrete structure of an embodiment of the present invention without limitation, and below in conjunction with accompanying drawing, the invention will be further described.
The present invention includes valve body 1, piston chamber 7, sliding spool 2, spring 3, wherein: sliding spool 2 is provided with slide block, slide block external diameter and piston chamber 7 couplings; One end of slide block is provided with spring chamber, and spring 3 one ends are placed in described spring chamber, and the other end is butted on piston chamber 7 end walls; The other end of slide block is the boss that diameter is less than the piston chamber internal diameter, and the boss top is butted on piston chamber end part plug 4, between boss and piston chamber 7 inwalls, forms chamber, and hydraulic control mouth and described chamber are linked up, and the hydraulic control mouth is equipped with hydraulic control mouth pipe joint 10; Two hydraulic fluid ports be respectively equipped with the first hydraulic fluid port pipe joint 8 and 9, two hydraulic fluid ports of the second hydraulic fluid port pipe joint all with guiding valve, 7 link up, in sliding spool 2 motions, described slide block makes communicate with each other or block into main passage between two hydraulic fluid ports; Also be provided with unimpeded all the time throttling passage 6 between two hydraulic fluid ports.
In the embodiment in figure 1: the two ends of sliding spool 2 are slide block, and the external diameter of two slide blocks all mates with piston chamber 7, and the stage casing between the slide block of two ends is the zone that diameter is less than piston chamber 7 internal diameters; Described spring chamber is positioned at an end slide block, and described boss is positioned at the end of the other end slide block; In sliding spool 2 motion, described slide block or two hydraulic fluid port main passages are blocked simultaneously, or make their zones between two slide blocks of sliding spool simultaneously, now communicate with each other in two hydraulic fluid port main passages.
During concrete enforcement, as long as change any one the technique plug in Fig. 1 into the amount of restriction metering needle, just can change the flow of throttling passage 6, still, the stream oil sectional area>=0.8mm of the minimum throttling passage of amount of restriction metering needle restriction
2.Like this, even the amount of restriction metering needle is adjusted to minimum discharge, can not block throttling passage 6, guarantee that lubricant oil still can enter clutch by throttling passage 6, make the lubricant oil can be reliably cooling to clutch.
In actual the use, as long as regulate the hydraulic pressure that enters the hydraulic control mouth, break the original balance with spring 3 elastic force, just can make sliding spool 2 displacements, and be located in new equinoctial point.When the slide block of sliding spool 2 during not in two hydraulic fluid ports, communicating with each other in the main passage between two hydraulic fluid ports, now enters the flow of lubrication maximum of clutch, and the interior outside friction disc of clutch is combined closely, and clutch is in conjunction with operating mode; When the slide block of sliding spool 2 during in two hydraulic fluid ports, two hydraulic fluid ports all are blocked, main passage between two hydraulic fluid ports is blocked, the lubricant oil that enters clutch can only pass through throttling passage 6, now enter the flow of lubrication minimum of clutch, the interior outside friction disc of clutch is separated, and clutch is in the off the row operating mode.
Claims (4)
1. a liquid control throttling hydraulic valve, comprise valve body, piston chamber, sliding spool, spring, and on valve body, two hydraulic fluid ports and a hydraulic control mouth are equipped with pipe joint, and it is characterized in that: sliding spool is provided with slide block, slide block external diameter and piston chamber coupling; One end of slide block is provided with spring chamber, and spring one end is placed in described spring chamber, and the other end is butted on the piston chamber end wall; The other end of slide block is the boss that diameter is less than the piston chamber internal diameter, and the boss top is butted on the plug of piston chamber end, between boss and piston chamber inwall, forms chamber, and hydraulic control mouth and described chamber are linked up; Two hydraulic fluid ports are all linked up with piston chamber, the slide block in described sliding spool or block two hydraulic fluid ports, or deviate from two hydraulic fluid ports; Also be provided with unimpeded all the time throttling passage between two hydraulic fluid ports.
2. liquid control throttling hydraulic valve according to claim 1, it is characterized in that: the two ends of sliding spool are slide block, the external diameter of two slide blocks all with the piston chamber coupling, the stage casing between the slide block of two ends is the zone that diameter is less than the piston chamber internal diameter; Described spring chamber is positioned at an end slide block, and described boss is positioned at the end of the other end slide block; Slide block in described sliding spool or block two hydraulic fluid ports, or make two hydraulic fluid ports zones between two slide blocks simultaneously.
3. liquid control throttling hydraulic valve according to claim 1 and 2 is characterized in that: between described two hydraulic fluid ports, be provided with the amount of restriction metering needle, the stream oil sectional area>=0.8mm of the minimum throttling passage of amount of restriction metering needle restriction in unimpeded throttling passage all the time
2.
4. the application of liquid control throttling hydraulic valve according to claim 1, it is characterized in that: the work loop that two hydraulic fluid ports of valve body is serially connected in to wet type hydraulic pressure multi-disc friction clutch, drive sliding spool by the hydraulic pressure size that changes the hydraulic control mouth, in the sliding spool motion, described slide block makes main passage between two hydraulic fluid ports communicate with each other or block, and changes the operating mode of wet type hydraulic pressure multi-disc friction clutch; Described throttling passage is always wet type hydraulic pressure multi-disc friction clutch cutting oil is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100449252A CN102141055B (en) | 2011-02-25 | 2011-02-25 | Hydraulic-control throttling hydraulic valve and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100449252A CN102141055B (en) | 2011-02-25 | 2011-02-25 | Hydraulic-control throttling hydraulic valve and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102141055A CN102141055A (en) | 2011-08-03 |
| CN102141055B true CN102141055B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100449252A Active CN102141055B (en) | 2011-02-25 | 2011-02-25 | Hydraulic-control throttling hydraulic valve and application thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114029565A (en) * | 2021-12-07 | 2022-02-11 | 宁波鄞州鑫天机械制造有限公司 | Portable screw tap anti-breaking electric tapping machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2837192A (en) * | 1954-04-26 | 1958-06-03 | Twin Disc Clutch Co | Oil pressure actuated clutch |
| GB2071816A (en) * | 1980-02-12 | 1981-09-23 | Fiat Ricerche | Flow regulator for hydraulic circuits |
| JP2504432B2 (en) * | 1986-12-19 | 1996-06-05 | 日産自動車株式会社 | Flow control solenoid valve |
| CN2519869Y (en) * | 2001-12-02 | 2002-11-06 | 应汉文 | Hand controlled one-way throttle valve |
| CN201407301Y (en) * | 2009-05-07 | 2010-02-17 | 中国船舶重工集团公司第七一一研究所 | Speed regulation clutch oil supply system with adjustable flow control valve |
| CN202023862U (en) * | 2011-02-25 | 2011-11-02 | 南京高精船用设备有限公司 | Liquid control throttling hydraulic valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9225860D0 (en) * | 1992-12-11 | 1993-02-03 | Smithkline Beecham Plc | Novel treatment |
| US7401751B2 (en) * | 2005-05-24 | 2008-07-22 | Eaton Corporation | Fluid flow regulator with overpressure relief function |
-
2011
- 2011-02-25 CN CN2011100449252A patent/CN102141055B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2837192A (en) * | 1954-04-26 | 1958-06-03 | Twin Disc Clutch Co | Oil pressure actuated clutch |
| GB2071816A (en) * | 1980-02-12 | 1981-09-23 | Fiat Ricerche | Flow regulator for hydraulic circuits |
| JP2504432B2 (en) * | 1986-12-19 | 1996-06-05 | 日産自動車株式会社 | Flow control solenoid valve |
| CN2519869Y (en) * | 2001-12-02 | 2002-11-06 | 应汉文 | Hand controlled one-way throttle valve |
| CN201407301Y (en) * | 2009-05-07 | 2010-02-17 | 中国船舶重工集团公司第七一一研究所 | Speed regulation clutch oil supply system with adjustable flow control valve |
| CN202023862U (en) * | 2011-02-25 | 2011-11-02 | 南京高精船用设备有限公司 | Liquid control throttling hydraulic valve |
Non-Patent Citations (1)
| Title |
|---|
| JP第2504432号B2 1996.06.05 |
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| CN102141055A (en) | 2011-08-03 |
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