CN103016433B - Two-way over-travel and automatic-resetting mechanically-actuated valve - Google Patents
Two-way over-travel and automatic-resetting mechanically-actuated valve Download PDFInfo
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- CN103016433B CN103016433B CN201210555338.4A CN201210555338A CN103016433B CN 103016433 B CN103016433 B CN 103016433B CN 201210555338 A CN201210555338 A CN 201210555338A CN 103016433 B CN103016433 B CN 103016433B
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- Prior art keywords
- valve
- spool
- valve core
- axle
- fairlead
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Abstract
The invention relates to hydraulic elements and provides a two-way over-travel and automatic-resetting mechanically-actuated valve which is particularly applicable to occasions in which the travel of a collision block is difficult to accurately control, a valve core needs two-way driving and difficultly bears larger radial force, and the like. The mechanically-actuated valve comprises a base plate, a reversing valve, a pin, a valve core driving assembly, a valve core resetting assembly, a locating sleeve, a connecting rack, a blocking plate, a bracket assembly, a small locking nut, a big locking nut, and the like. According to the mechanically-actuated valve provided by the invention, the over-travel can be realized, namely, the travel of the collision block is allowed to exceed that of the valve core, so that in-place movement of the valve core can be guaranteed under the collision of the collision block and the valve core can be prevented from being damaged due to overlarge stress; and when the valve core is not subjected to collision, the automatic resetting of the valve core can be realized.
Description
Technical field
The present invention relates to a kind of Hydraulic Elements, specifically a kind of bidirectional overtaking stroke and automatically reset motor valve.
Background technology
Motor valve is the collision block by being arranged on moving component, directly or indirectly clashes into hydraulic valve spool and makes it mobile, thus switch oil circuit.In prior art, motor valve weak point is that the stroke needs of collision block accurately control, and the too small then valve core movement of stroke is not in place, and stroke is excessive, causes motor valve to damage or loses efficacy, being also to realize unidirectional drive, is also two functions.
Summary of the invention
Object of the present invention is exactly that stroke in order to overcome motor valve collision block in above-mentioned prior art needs accurately to control and the problem of unidirectional drive, provides a kind of bidirectional overtaking stroke and automatically reset motor valve.Motor valve of the present invention, can realize over-travel, namely allows the stroke of collision block to exceed the stroke of spool, thus both can ensure that clashing into bottom spool motion at collision block puts in place, can prevent again spool stressed excessive and damage; When not being impacted, spool can being realized and automatically reply meta.
The object of the invention is to be achieved by the following technical measures: a kind of bidirectional overtaking stroke and automatically reset motor valve, described motor valve comprises base plate, reversal valve, pin, spool driven unit, valve core reset assembly, positioning sleeve, link, baffle plate, bracket component, little locking nut, large locking nut.
Described spool driven unit by pitching block, hollow screw, straight pin, driving spring, support bar, little spring put down shoulder and form; Described fork block is connected by straight pin with support bar; Described hollow screw is enclosed within fork block, and described little spring is put down shoulder and is provided with two, left and right, is all enclosed within support bar, and described driving spring is enclosed between the flat shoulder of two little springs of support bar;
Described valve core reset assembly is made up of fairlead, back-moving spring, the flat shoulder of big spring, adjustment pad, axle; Described big spring is put down shoulder and is provided with two, left and right, is all enclosed within fairlead, and described back-moving spring is enclosed between the flat shoulder of two big springs of fairlead; Described fairlead and axle are threaded connection, and are provided with adjustment pad between described fairlead and axle;
Described bracket component is made up of base, guide plate, bracing frame, fixed cover, and described guide plate and bracing frame are welded on base, and described fixed cover is arranged in the circular hole of bracing frame;
Described reversal valve, bracket component and base plate are affixed; Described reversal valve is connected by pin with spool driven unit; Described hollow screw is spun in fairlead, and is locked by little locking nut; Described axle is arranged in cover, and described link one end screws in positioning sleeve, and is locked by large locking nut, and the other end is fixedly connected with by screw with bracing frame; Described baffle-plate-sleeve, on axle, is fixedly connected with axle by screw.
Described reversal valve is three-position four-way valve, is made up of cone valve, right end cap, fittings body, nut, connecting rod, spool, valve body, indicating arm, left end cap; Described indicating arm is sleeved on spool one end, described left end cap and valve body affixed; Described spool is arranged in valve body, and described connecting rod is sleeved on the spool other end, described right end cap and valve body affixed; Described connecting rod screws in fittings body, and by nut check, described fittings body is connected by pin with the fork block in spool driven unit.
Bidirectional overtaking stroke of the present invention and automatically reset motor valve compared with prior art have the following advantages: (1) reduces the requirement accurately controlled collision block stroke, the scope of application is wider, be specially adapted to collision block stroke and be difficult to accurate control, spool is difficult to the occasion of bearing larger radial load; (2) bi-directional drive of spool can be realized, solve the problem of conventional engine valve unidirectional drive, widen the application of motor valve further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention's a kind of bidirectional overtaking stroke and automatically reset motor valve.
Fig. 2 is the partial sectional view of reversal valve in the present invention.
Fig. 3 is the structural representation of spool driven unit in the present invention.
Fig. 4 is the structural representation of valve core reset assembly in the present invention.
Fig. 5 is the structural representation of medium-height trestle assembly of the present invention.
Fig. 6 is the left view of Fig. 5.
Wherein: 1. base plate, 2. reversal valve, 3. sell, 4. spool driven unit, 5. valve core reset assembly, 6. positioning sleeve, 7. link, 8. screw, 9. baffle plate, 10. bracket component, 11. large locking nuts, 12. little locking nuts, 13. nipples, 14. cone valves, 15. right end caps, 16. fittings bodies, 17. nuts, 18. connecting rods, 19. spools, 20. valve bodies, 21. indicating arms, 22. left end caps, 23. covers, 24. fork blocks, 25. hollow screws, 26. straight pins, 27. driving springs, 28. support bars, the flat shoulder of 29. little springs, 30. fairleads, 31. back-moving springs, the flat shoulder of 32. big springs, 33. adjustment pads, 34. axles, 35. bases, 36. guide plates, 37. bracing frames, 38. fixed covers.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Fig. 1,3,4,5,6, the present embodiment provides a kind of detailed description of the invention one: a kind of bidirectional overtaking stroke and automatically reset motor valve, and this motor valve comprises base plate 1, reversal valve 2, pin 3, spool driven unit 4, valve core reset assembly 5, positioning sleeve 6, link 7, baffle plate 9, bracket component 10.
Described spool driven unit 4 is put down shoulder 29 formed by fork block 24, hollow screw 25, straight pin 26, driving spring 27, support bar 28, little spring; Described fork block 24 is connected by straight pin 26 with support bar 28; Described hollow screw 25 is enclosed within fork block 24, and shoulder 29 put down by described little spring two, left and right, and be all enclosed within support bar 28, described driving spring 27 is arranged on two springs and puts down between shoulder 29.
Described valve core reset assembly 5 puts down shoulder 32 by fairlead 30, back-moving spring 31, big spring, adjustment pad 33, axle 34 form; Described big spring puts down shoulder 32 two, left and right, and be all enclosed within fairlead 30, described back-moving spring 31 is arranged on two big springs and puts down between shoulder 32; Described fairlead 30 is threaded connection with axle 34, is provided with and adjusts pad 33 between described fairlead 30 and axle 34.
Described bracket component 10 is made up of base 35, guide plate 36, bracing frame 37, fixed cover 38, and described guide plate 36 is welded on base 35 with bracing frame 37, and described fixed cover 38 is arranged in the circular hole of bracing frame 37.
Described reversal valve 2, bracket component 10 are affixed with base plate 1; Described reversal valve 2 is connected by pin 3 with spool driven unit 4; Described hollow screw 25 screws in fairlead 30, and is locked by little locking nut 12; Described axle 34 is arranged in fixed cover 38, and described link 7 one end screws in positioning sleeve 6, and is locked by large locking nut 11, and the other end is fixedly connected with by screw with bracing frame 36; Described baffle plate 9 is enclosed within axle 34, is fixedly connected with axle 34 by screw.
As shown in Figure 2, described reversal valve 2 is three-position four-way valve, is made up of cone valve 14, right end cap 15, fittings body 16, nut 17, connecting rod 18, spool 19, valve body 20, indicating arm 21, left end cap 22; Described indicating arm 21 is sleeved on spool 19 one end, and described left end cap 22 is affixed with valve body 20; Described spool 19 is arranged in valve body 20, and described connecting rod 18 is sleeved on spool 19 other end, and described right end cap 15 is affixed with valve body 20; Described connecting rod 18 screws in fittings body 16, and is locked by nut 17; Described fittings body 16 is connected by pin 3 with the fork block 24 in spool driven unit 4.
Operation principle: according to embodiment one, when extraneous collision block applies active force left to baffle plate 9, baffle plate 9 is with moving axis 34 to left movement, compressible drive spring 27, and then promote fork block 24 to left movement, thus promote spool 19 to left movement, after spool 19 motion puts in place, if the displacement of baffle plate 9 exceedes the stroke of spool 19, axle 34 drives hollow screw 25 to slide along fork block 24 left, driving spring 27 is compressed further, and spool 19 is motionless, realizes over-travel.After extraneous collision block is cancelled, under the effect of back-moving spring 31, axle 34 gets back to original position, simultaneously under the effect of driving spring 27, makes spool 19 reply meta; When extraneous collision block applies active force to the right to baffle plate 9, baffle plate 9 is with moving axis 34 to move right, compressible drive spring 27, and then promotion fork block 24 moves right, thus promotion spool 19 moves right, after spool 19 motion puts in place, if the displacement of baffle plate 9 exceedes the stroke of spool 19, axle 34 drives hollow screw to slide along fork block 24 to the right, and driving spring 27 is compressed further, and spool 19 is motionless, realize over-travel.After extraneous collision block is cancelled, under the effect of back-moving spring 31, axle 34 gets back to original position, simultaneously under the effect of driving spring 27, makes spool 19 reply meta.
Whether spool 19 can be dismantled cover 23 in moving process, observe spool 19 move and put in place by indicating arm 22.Ensure that axle 34 does not rotate in moving process by screw 8 and guide plate 36.
Claims (2)
1. bidirectional overtaking stroke and an automatically reset motor valve, is characterized in that: described motor valve comprises base plate, reversal valve, pin, spool driven unit, valve core reset assembly, positioning sleeve, link, baffle plate, bracket component;
Described spool driven unit by pitching block, hollow screw, straight pin, driving spring, support bar, little spring put down shoulder and form; Described fork block is connected by straight pin with support bar; Described hollow screw is enclosed within fork block, and described little spring is put down shoulder and is provided with two, left and right, is all enclosed within support bar, and described driving spring is enclosed between the flat shoulder of two little springs of support bar;
Described valve core reset assembly is made up of fairlead, back-moving spring, the flat shoulder of big spring, adjustment pad, axle; Described big spring is put down shoulder and is provided with two, left and right, is all enclosed within fairlead, and described back-moving spring is enclosed between the flat shoulder of two big springs of fairlead; Described fairlead and axle are threaded connection, and are provided with adjustment pad between described fairlead and axle;
Described bracket component is made up of base, guide plate, bracing frame, fixed cover, and described guide plate and bracing frame are welded on base, and described fixed cover is arranged in the circular hole of bracing frame;
Described reversal valve, bracket component and base plate are affixed; Described reversal valve is connected by pin with spool driven unit; Described hollow screw is spun in fairlead, and is locked by little locking nut; Described axle is arranged in fixed cover, and described link one end screws in positioning sleeve, and is locked by large locking nut, and the other end is fixedly connected with by screw with bracing frame; Described baffle-plate-sleeve, on axle, is fixedly connected with axle by screw.
2. bidirectional overtaking stroke according to claim 1 and automatically reset motor valve, is characterized in that: described reversal valve is three-position four-way valve, is made up of cone valve, right end cap, fittings body, nut, connecting rod, spool, valve body, indicating arm, left end cap; Described indicating arm is sleeved on spool one end, described left end cap and valve body affixed; Described spool is arranged in valve body, and described connecting rod is sleeved on the spool other end, described right end cap and valve body affixed; Described connecting rod screws in fittings body, and passes through nut check; Described fittings body is connected by pin with the fork block in spool driven unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555338.4A CN103016433B (en) | 2012-12-20 | 2012-12-20 | Two-way over-travel and automatic-resetting mechanically-actuated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555338.4A CN103016433B (en) | 2012-12-20 | 2012-12-20 | Two-way over-travel and automatic-resetting mechanically-actuated valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016433A CN103016433A (en) | 2013-04-03 |
| CN103016433B true CN103016433B (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210555338.4A Expired - Fee Related CN103016433B (en) | 2012-12-20 | 2012-12-20 | Two-way over-travel and automatic-resetting mechanically-actuated valve |
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| CN (1) | CN103016433B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775113B (en) * | 2014-01-17 | 2015-04-15 | 中国矿业大学 | Device for controlling reversing of hydraulic bracket valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158988A (en) * | 1977-08-29 | 1979-06-26 | J. I. Case Company | Self-responsive fluid means for anti-cavitation |
| GB1555145A (en) * | 1975-08-19 | 1979-11-07 | Bergwerksverband Gmbh | Hydraulic control valve device |
| US4733599A (en) * | 1983-08-02 | 1988-03-29 | Ing. Waldhauser Maschinenfabrik Gmbh & Co. Kg | Apparatus for controlling the flow of a pressure fluid in a motor |
| CN1127851A (en) * | 1995-01-28 | 1996-07-31 | 浙江工业大学 | Floating piston type liquid transporter |
| CN201043082Y (en) * | 2007-03-15 | 2008-04-02 | 天津三北橡塑设备维修中心 | Full-automatic self-lift type three-station tyre storing device |
| CN101560998A (en) * | 2009-05-07 | 2009-10-21 | 刘常芝 | Self-control positioning bidirectional hydraulic change-over valve |
| CN203051276U (en) * | 2012-12-20 | 2013-07-10 | 中国船舶重工集团公司第七一九研究所 | Engine-driven valve with functions of bi-direction stroke surpassing and automatic reset |
-
2012
- 2012-12-20 CN CN201210555338.4A patent/CN103016433B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1555145A (en) * | 1975-08-19 | 1979-11-07 | Bergwerksverband Gmbh | Hydraulic control valve device |
| US4158988A (en) * | 1977-08-29 | 1979-06-26 | J. I. Case Company | Self-responsive fluid means for anti-cavitation |
| US4733599A (en) * | 1983-08-02 | 1988-03-29 | Ing. Waldhauser Maschinenfabrik Gmbh & Co. Kg | Apparatus for controlling the flow of a pressure fluid in a motor |
| CN1127851A (en) * | 1995-01-28 | 1996-07-31 | 浙江工业大学 | Floating piston type liquid transporter |
| CN201043082Y (en) * | 2007-03-15 | 2008-04-02 | 天津三北橡塑设备维修中心 | Full-automatic self-lift type three-station tyre storing device |
| CN101560998A (en) * | 2009-05-07 | 2009-10-21 | 刘常芝 | Self-control positioning bidirectional hydraulic change-over valve |
| CN203051276U (en) * | 2012-12-20 | 2013-07-10 | 中国船舶重工集团公司第七一九研究所 | Engine-driven valve with functions of bi-direction stroke surpassing and automatic reset |
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| Publication number | Publication date |
|---|---|
| CN103016433A (en) | 2013-04-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20161220 |