CN102748525A - Ball valve servomotor with hydraulic locking device - Google Patents
Ball valve servomotor with hydraulic locking device Download PDFInfo
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- CN102748525A CN102748525A CN2012102445087A CN201210244508A CN102748525A CN 102748525 A CN102748525 A CN 102748525A CN 2012102445087 A CN2012102445087 A CN 2012102445087A CN 201210244508 A CN201210244508 A CN 201210244508A CN 102748525 A CN102748525 A CN 102748525A
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- piston
- ball valve
- piston rod
- cylinder
- valve servomotor
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Abstract
The invention relates to the technical field of components of intake water ball valves of water turbines, and particularly relates to a ball valve servomotor with a hydraulic locking device. The ball valve servomotor comprises a cylinder barrel, a cylinder base, a front cylinder cover, a piston rod and a piston, wherein the direction in which the piston rod inside the cylinder barrel stretches out of the front cylinder cover is used as the front direction, and the opposite direction is the back direction; the front cylinder cover and the cylinder base are respectively fixed at the front end and the rear end of the cylinder barrel; the piston is fixed at the rear end of the piston rod; an outer ring of the piston is in sealing connection with an inner ring of the cylinder barrel; and a hydraulic locking device is further installed on the front cylinder cover. The ball valve servomotor has the beneficial effects that by additionally arranging the hydraulic locking device on the ball valve servomotor, the security on the overhaul of upstream units is improved greatly; and dangerous accidents caused by mis-operation of working personnel while the ball valve servomotor is maintained are prevented.
Description
Technical field
The present invention relates to the component technical field of hydroturbine water intake ball valve, relate in particular to a kind of ball valve servomotor that has hydraulic lock assembly.
Background technique
Water intake ball valve is one of the important electromechanical equipment in water power plant, because the specific (special) requirements of hydraulic turbine operation, there is certain problem in the operation of ball valve in the power station of domestic manufacturer's production at present; The phenomenon that causes unit to use happens occasionally, and wherein one of major reason is that the employing of servomotor makes the ball valve spindle nose poorly sealed the most, the serious leakage of oil of servomotor; Water causes profit to mix mutually after getting into cylinder body, and emulsification is oily, the pollution oil sources, has a strong impact on the performance of water intake ball valve; Even cause the hydraulic pressure installation of hundreds thousand of units to be scrapped; And also there is installation in servomotor, and the problem of maintenance difficulty also has a strong impact on the normal operation of water turbine.The existing water turbine water intake ball valve servomotor that is used for comprises parts such as cylinder body, cylinder cap, piston rod, piston, but considers from security standpoint; If upper reaches maintenance misoperation; Will there be great potential safety hazard in the valve misoperation that brings, even causes personal injury.
Summary of the invention
The technical problem that the present invention will solve is: misoperation when servomotor overhauls, cause peril, and the present invention provides a kind of ball valve servomotor that has hydraulic lock assembly.
The technical solution adopted for the present invention to solve the technical problems is: a kind of ball valve servomotor that has hydraulic lock assembly; Comprise cylinder barrel, cylinder bottom, front end housing, piston rod and piston, the direction that the piston rod in the setting cylinder barrel stretches out front end housing is the place ahead, otherwise is the rear; Front end housing and cylinder bottom are individually fixed in the front-end and back-end of cylinder barrel; Piston is fixed in the rear end of piston rod, and the outer ring of piston and the inner ring of cylinder barrel are tightly connected, and hydraulic lock assembly also is installed on the described front end housing.
Further; Concrete, described hydraulic lock assembly comprises locking oil hydraulic cylinder, lock piston bar and is sleeved on the lockplate of piston rod front end that described lock piston bar is put in the locking oil hydraulic cylinder; And the axis of lock piston bar and the axis normal of piston rod; The external part of lock piston bar also is equipped with the locking flashboard, offers on the described piston rod and locks the lock groove that flashboard matches, and the locking flashboard is connected in the lock groove; Spacing between described lockplate and the front end housing is complementary with the thickness of locking flashboard, and the locking oil hydraulic cylinder is installed on front end housing and the lockplate.
Further, in order to improve the reliability of locking, described locking flashboard is U template shape, and the U-groove bevel on the locking flashboard matches with piston rod brake application groove.
For the ease of observing and operation, the stroke indicator cock is installed also on the said hydraulic lock assembly.
The invention has the beneficial effects as follows that the ball valve servomotor that has hydraulic lock assembly of the present invention through on ball valve servomotor, setting up hydraulic lock assembly, has improved the Security of upper reaches unit maintenances greatly.Cause the generation of peril when having avoided the ball valve servomotor maintenance because of the staff misoperation.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation that the present invention has the optimum embodiment of ball valve servomotor of hydraulic lock assembly.
Fig. 2 is the A place enlarged view of Fig. 1.
Fig. 3 is the structural representation of hydraulic lock assembly.
Among the figure: 1, cylinder bottom, 2, piston, 3, cylinder barrel, 4, front end housing, 5, hydraulic lock assembly, 5-1, locking oil hydraulic cylinder, 5-2, locking flashboard, 5-3, lock piston bar, 6, lockplate, 7, piston rod, 8, hanger.
Embodiment
Combine accompanying drawing that the present invention is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Shown in Fig. 1-3, be the optimum embodiment of the present invention's ball valve servomotor of having hydraulic lock assembly, comprise cylinder barrel 3, cylinder bottom 1, front end housing 4, piston rod 7 and piston 2; The direction that piston rods 7 in the setting cylinder barrel 3 stretch out front end housing 4 is the place ahead; Otherwise be the rear, front end housing 4 and cylinder bottom 1 are individually fixed in the front-end and back-end of cylinder barrel 3, and piston 2 is fixed in the rear end of piston rod 7; The inner ring of the outer ring of piston 2 and cylinder barrel 3 is tightly connected, and hydraulic lock assembly 5 also is installed on the front end housing 4.
Working principle: locking flashboard 5-2 adorns under 5 lock piston bar 5-3 drives at hydraulic locking; Promote in the inside groove between front end housing 4 and lockplate 6 and fall; Thereby locking flashboard 5-2 can be stuck in the lock groove on the piston rod 7, cooperate with it to reach 7 effects of lock piston bar.
The ball valve servomotor that the present invention has hydraulic lock assembly is the swing servomotor of straight-cylinder; Adopt the hydraulic locking structure, its advantage is that servomotor good rigidly, technology are good, can adjust separately, overhaul; Tubing system is simple; Oil sealing property is good, and is simple in structure, in light weight, effectively guarantees the reliably working of water turbine units.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (4)
1. ball valve servomotor with hydraulic lock assembly; Comprise cylinder barrel (3), cylinder bottom (1), front end housing (4), piston rod (7) and piston (2); The direction that piston rod (7) in the setting cylinder barrel (3) stretches out front end housing (4) is the place ahead; Otherwise be the rear, front end housing (4) and cylinder bottom (1) are individually fixed in the front-end and back-end of cylinder barrel (3), and piston (2) is fixed in the rear end of piston rod (7); The inner ring of the outer ring of piston (2) and cylinder barrel (3) is tightly connected, and it is characterized in that: hydraulic lock assembly (5) also is installed on the described front end housing (4).
2. the ball valve servomotor of band hydraulic lock assembly as claimed in claim 1; It is characterized in that: described hydraulic lock assembly (5) comprises locking oil hydraulic cylinder (5-1), lock piston bar (5-3) and is sleeved on the lockplate (6) of piston rod (7) front end; Described lock piston bar (5-3) is arranged in the locking oil hydraulic cylinder (5-1); And the axis normal of the axis of lock piston bar (5-3) and piston rod (7); The external part of lock piston bar (5-3) also is equipped with locking flashboard (5-2); Offer on the described piston rod (7) and lock the lock groove that flashboard (5-2) matches; Locking flashboard (5-2) is connected in the lock groove, and the spacing between described lockplate (6) and the front end housing (4) is complementary with the thickness of locking flashboard (5-2), and locking oil hydraulic cylinder (5-1) is installed on front end housing (4) and the lockplate (6).
3. the ball valve servomotor of band hydraulic lock assembly as claimed in claim 2 is characterized in that: described locking flashboard (5-2) is U template shape, and the U-groove bevel on the locking flashboard (5-2) matches with piston rod (7) brake application groove.
4. the ball valve servomotor of band hydraulic lock assembly as claimed in claim 1 is characterized in that: said hydraulic lock assembly also is equipped with the stroke indicator cock on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102445087A CN102748525A (en) | 2012-07-13 | 2012-07-13 | Ball valve servomotor with hydraulic locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102445087A CN102748525A (en) | 2012-07-13 | 2012-07-13 | Ball valve servomotor with hydraulic locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102748525A true CN102748525A (en) | 2012-10-24 |
Family
ID=47028928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102445087A Pending CN102748525A (en) | 2012-07-13 | 2012-07-13 | Ball valve servomotor with hydraulic locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748525A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195974A (en) * | 2013-04-08 | 2013-07-10 | 张家港沙洲船用阀门制造有限公司 | Locking device for pneumatic valve |
| CN104373277A (en) * | 2014-11-10 | 2015-02-25 | 常州液压成套设备厂有限公司 | Servomotor locking device |
| CN104653788A (en) * | 2015-01-22 | 2015-05-27 | 哈尔滨工程大学 | Hydraulic-cylinder-based self-locking hydraulic sea valve |
| CN105114395A (en) * | 2015-09-18 | 2015-12-02 | 常州液压成套设备厂有限公司 | Long-stroke hydraulic oil cylinder rotation preventing device |
| CN108361240A (en) * | 2018-05-09 | 2018-08-03 | 铁岭特种阀门股份有限公司 | A kind of hydraulic cylinder with locking device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0473476A (en) * | 1990-07-11 | 1992-03-09 | Iseki & Co Ltd | Hydraulic spool valve |
| CN101550900A (en) * | 2009-05-12 | 2009-10-07 | 福建万新发电设备有限公司 | Valve control device and control method thereof |
| CN102011682A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Underground power station servomotor |
| CN202733131U (en) * | 2012-07-13 | 2013-02-13 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
-
2012
- 2012-07-13 CN CN2012102445087A patent/CN102748525A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0473476A (en) * | 1990-07-11 | 1992-03-09 | Iseki & Co Ltd | Hydraulic spool valve |
| CN101550900A (en) * | 2009-05-12 | 2009-10-07 | 福建万新发电设备有限公司 | Valve control device and control method thereof |
| CN102011682A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Underground power station servomotor |
| CN202733131U (en) * | 2012-07-13 | 2013-02-13 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195974A (en) * | 2013-04-08 | 2013-07-10 | 张家港沙洲船用阀门制造有限公司 | Locking device for pneumatic valve |
| CN103195974B (en) * | 2013-04-08 | 2014-09-17 | 张家港沙洲船用阀门制造有限公司 | Locking device for pneumatic valve |
| CN104373277A (en) * | 2014-11-10 | 2015-02-25 | 常州液压成套设备厂有限公司 | Servomotor locking device |
| CN104653788A (en) * | 2015-01-22 | 2015-05-27 | 哈尔滨工程大学 | Hydraulic-cylinder-based self-locking hydraulic sea valve |
| CN105114395A (en) * | 2015-09-18 | 2015-12-02 | 常州液压成套设备厂有限公司 | Long-stroke hydraulic oil cylinder rotation preventing device |
| CN108361240A (en) * | 2018-05-09 | 2018-08-03 | 铁岭特种阀门股份有限公司 | A kind of hydraulic cylinder with locking device |
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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: 20121024 |