CN202733131U - Ball valve servomotor with hydraulic locking device - Google Patents
Ball valve servomotor with hydraulic locking device Download PDFInfo
- Publication number
- CN202733131U CN202733131U CN 201220342667 CN201220342667U CN202733131U CN 202733131 U CN202733131 U CN 202733131U CN 201220342667 CN201220342667 CN 201220342667 CN 201220342667 U CN201220342667 U CN 201220342667U CN 202733131 U CN202733131 U CN 202733131U
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- ball valve
- piston rod
- cylinder
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Abstract
The utility model relates to the technical field of parts of water inlet ball valves of water turbines, in particular to a ball valve servomotor with a hydraulic locking device. The ball valve servomotor comprises a cylinder barrel, a cylinder bottom, a front cylinder cover, a piston rod and a piston, wherein a direction in which the piston rod in the cylinder barrel extends out of the front cylinder cover is set as a forward direction, otherwise is set as a backward direction; the front cylinder cover and the cylinder bottom are fixed at the front end and the back end of the cylinder barrel respectively; the piston is fixed at the back end of the piston rod; the outer ring of the piston and the inner ring of the cylinder barrel are connected hermetically; and a hydraulic locking device is further arranged on the front cylinder cover. The ball valve servomotor has the beneficial effects that: the hydraulic locking device is arranged on the ball valve servomotor, so that the overhauling safety of an upstream unit is improved greatly, and dangerous accidents caused by error operation of working personnel during overhauling of the ball valve servomotor are prevented.
Description
Technical field
The utility model relates to the component technical field of hydroturbine water intake ball valve, relates in particular to a kind of ball valve servomotor with 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 at present domestic manufacturer's production, the phenomenon that causes unit to use happens occasionally, wherein one of major reason is that the employing of servomotor makes the ball valve shaft head seal not tight the most, the serious leakage of oil of servomotor, water causes profit mixed mutually after entering cylinder body, emulsification oil, pollute oil sources, have 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, the maintenance hard problem also has a strong impact on the normal operation of water turbine.Existing for water turbine water intake ball valve servomotor, comprise the parts such as gray iron, piston rod, piston, but consider from security standpoint, if upstream maintenance misoperation, will there be great potential safety hazard in the valve misoperation that brings, even causes personal injury.
The model utility content
The technical problems to be solved in the utility model is: misoperation during for fear of servomotor overhaul, and the cause danger accident, the utility model provides a kind of ball valve servomotor with hydraulic lock assembly.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of ball valve servomotor with hydraulic lock assembly, comprise cylinder barrel, cylinder bottom, front end housing, piston rod and piston, the direction that piston rod in the setting cylinder barrel stretches out front end housing is the place ahead, otherwise be 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, described lock piston bar is put in the locking oil hydraulic cylinder, and the axis of lock piston bar is vertical with the axis of piston rod, the external part of lock piston bar also is equipped with the locking flashboard, offer on the described piston rod and the lock groove that locks flashboard and match, 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-shaped tabular, 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 described hydraulic lock assembly.
The beneficial effects of the utility model are that the ball valve servomotor with hydraulic lock assembly of the present utility model by setting up hydraulic lock assembly at ball valve servomotor, has improved the Security of upstream unit maintenance greatly.When having avoided the ball valve servomotor maintenance because of the generation of staff's misoperation cause danger accident.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that the utility model is with the optimum embodiment's of ball valve servomotor of hydraulic lock assembly structural representation.
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
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As Figure 1-3, that the utility model is with the optimum embodiment of the ball valve servomotor of 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.
Hydraulic lock assembly 5 comprises locking oil hydraulic cylinder 5-1, lock piston bar 5-3 and the lockplate 6 that is sleeved on piston rod 7 front ends, lock piston bar 5-3 is arranged in the locking oil hydraulic cylinder 5-1, and the axis of lock piston bar 5-3 is vertical with the axis of piston rod 7, the external part of lock piston bar 5-3 also is equipped with locking flashboard 5-2, offer on the piston rod 7 and the lock groove that locks flashboard 5-2 and match, locking flashboard 5-2 is connected in the lock groove, spacing between 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.Locking flashboard 5-2 is U-shaped tabular, and plane on the U-groove bevel on the locking flashboard 5-2 and the piston rod 7, the lock groove that grinds match.The stroke indicator cock also is installed on the hydraulic lock assembly 5.
Working principle: locking flashboard 5-2 fills 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 utility model is the swing servomotor of straight-cylinder with the ball valve servomotor of hydraulic lock assembly, adopt the hydraulic locking structure, its advantage is that servomotor good rigidly, technique are good, can adjust separately, overhaul, tubing system is simple, oil sealing is good, and is simple in structure, lightweight, effectively guarantees the reliably working of water turbine units.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on the specification, must determine 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), 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 with 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 be 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 of lock piston bar (5-3) is vertical with the axis of 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 the lock groove that locks flashboard (5-2) and match, locking flashboard (5-2) is connected in the lock groove, 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 with hydraulic lock assembly as claimed in claim 2, it is characterized in that: described locking flashboard (5-2) is U-shaped tabular, and the U-groove bevel on the locking flashboard (5-2) matches with piston rod (7) brake application groove.
4. the ball valve servomotor with hydraulic lock assembly as claimed in claim 1, it is characterized in that: described hydraulic lock assembly also is equipped with the stroke indicator cock on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342667 CN202733131U (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 |
|---|---|---|---|
| CN 201220342667 CN202733131U (en) | 2012-07-13 | 2012-07-13 | Ball valve servomotor with hydraulic locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733131U true CN202733131U (en) | 2013-02-13 |
Family
ID=47658832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220342667 Expired - Fee Related CN202733131U (en) | 2012-07-13 | 2012-07-13 | Ball valve servomotor with hydraulic locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748525A (en) * | 2012-07-13 | 2012-10-24 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
| CN109058036A (en) * | 2018-07-03 | 2018-12-21 | 中国长江电力股份有限公司 | Control method is moved back in the S-shaped throwing of Hydropower Unit servomotor locking device |
-
2012
- 2012-07-13 CN CN 201220342667 patent/CN202733131U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748525A (en) * | 2012-07-13 | 2012-10-24 | 常州液压成套设备厂有限公司 | Ball valve servomotor with hydraulic locking device |
| CN109058036A (en) * | 2018-07-03 | 2018-12-21 | 中国长江电力股份有限公司 | Control method is moved back in the S-shaped throwing of Hydropower Unit servomotor locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |