CN104373277A - Servomotor locking device - Google Patents
Servomotor locking device Download PDFInfo
- Publication number
- CN104373277A CN104373277A CN201410627656.6A CN201410627656A CN104373277A CN 104373277 A CN104373277 A CN 104373277A CN 201410627656 A CN201410627656 A CN 201410627656A CN 104373277 A CN104373277 A CN 104373277A
- Authority
- CN
- China
- Prior art keywords
- locking
- lock
- lock ingot
- ingot
- locking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention relates to a servomotor locking device which is mainly used for preventing guide blades from spreading in the halt and all-off inspection process of a servomotor. The servomotor locking device comprise a locking rod, a locking gate plate and a locking air cylinder driving the locking gate plate to move. The locking rod is arranged below the locking air cylinder; the locking rod is a stepped shaft; the locking rod is fixedly connected with an extension end of a piston rod of a main oil cylinder; the locking gate plate is fixedly connected with the locking oil cylinder; a clamping groove is formed in the locking gate plate, and the locking gate plate is clamped on a shaft shoulder of the locking rod through the clamping groove. When the locking device is in a locking state, the locking gate plate is driven by the locking oil cylinder to be clamped on the shaft shoulder of the locking rod; when the locking device is in a disengaging mode, the locking gate plate is disengaged from the shaft shoulder. According to the servomotor locking device, the problem of failure of the locking device in the halt and all-off inspection process is effectively solved, the maintenance safety of an upstream unit is greatly improved, and dangerous accidents are prevented by additionally arranging the locking gate plate, increasing the contact area and improving the capacity of bearing stress.
Description
Technical field
The present invention relates to the field of components of stator turbine-generator units, especially a kind of servomotor locking device.
Background technique
Guide vane servomotor locking device when closing, servomotor lock piston is stayed in closed positions at compressor emergency shutdown, stator, is one of technical measures guaranteeing unit operation safety.Conventional servomotor locking device can with reference to shown in figure 4, lock spindle blade 10 is provided with locking nut 1, lock ingot pull bar 31 is movable downwards under the driving of lock ingot oil cylinder 30, lock ingot pull bar 31 outer surface contacts with locking nut 1 and compresses, thus servomotor piston is pinned, this locking device for the cylinder diameter of master cylinder parameter at 380mm, normal thrust can meet the demands on the servomotor of below 45T, if but the servomotor cylinder diameter in certain power station is 650mm, time normal thrust is 209T, this locking device just can not meet the demands, because the contact stress of lock ingot is original 5 times, reach 1000N/mm
2, be far longer than the allowable stress of material, when unit have an accident it is overhauled time, locking device is probably unable to bear large effect of stress and causes locking device to damage, and loses lock ingot function, causes loss of personal property, iff changing the high material of intensity, then greatly can increase cost of production.
Summary of the invention
Technical problem to be solved by this invention is: can not bear larger stress and the deficiency that loses lock ingot function to overcome servomotor locking device of the prior art, providing a kind of reliable and stable servomotor locking device.
The technical solution adopted for the present invention to solve the technical problems is: a kind of servomotor locking device, comprise lock spindle blade, lock ingot flashboard and drive the lock ingot oil cylinder locking the activity of ingot flashboard, described lock spindle blade is multidiameter shaft, lock spindle blade is fixedly connected with the piston rod external part of master cylinder, lock spindle blade is arranged on the below of lock ingot oil cylinder, described lock ingot flashboard offers draw-in groove, and lock ingot flashboard is connected to by draw-in groove on the shaft shoulder of lock spindle blade, and lock ingot flashboard is fixedly connected with lock ingot oil cylinder.
Further, described lock ingot oil cylinder comprises lock ingot pull bar, lock ingot piston, lock ingot cylinder body and is fixedly mounted on lock ingot cylinder cap and the lock ingot cylinder head of lock ingot cylinder ends respectively, described lock ingot piston coordinates with the motive sealing of lock ingot cylinder body, the axis of described lock ingot pull bar and the axes normal of lock spindle blade, lock ingot pull bar one end is fixed on lock ingot piston, and the other end is fixedly connected with lock ingot flashboard through lock ingot cylinder head.
Movable straight down in order to ensure lock ingot flashboard, also comprise guide plate, described guide plate is fixedly connected with lock ingot cylinder head, guide plate offers " U " type guiding groove, and the inwall of described guiding groove is slidably connected with lock ingot flashboard outer side surface.
The invention has the beneficial effects as follows: servomotor locking device of the present invention; by arranging the lock ingot flashboard with draw-in groove on lock ingot oil cylinder; when the shutdown complete shut-down of servomotor checks; can make to lock ingot flashboard to contact with the shaft shoulder of lock spindle blade; add the active area of contact; improve the ability that locking device bears large stress; ensure that the normal lock ingot function of locking device; avoid staff causes peril in maintenance servomotor process generation because locking device lost efficacy, working stability is reliable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is servomotor locking device mounting structure schematic diagram;
Fig. 2 is the sectional view of A-A in Fig. 1;
Structural representation when Fig. 3 is locking device work in Fig. 2;
Fig. 4 is conventional servomotor locking device lock ingot position view.
In figure: 1, locking nut, 10, lock spindle blade, 20, lock ingot flashboard, 21, draw-in groove, 30, lock ingot oil cylinder, 31, lock ingot pull bar, 32, lock ingot piston, 33, lock ingot cylinder body, 34, lock ingot cylinder cap, 35, lock ingot cylinder head, 40, guide plate, 41, guiding groove.
Embodiment
The present invention is described in detail by reference to the accompanying drawings now.This figure is the schematic diagram simplified, and only basic structure of the present invention is described in a schematic way, therefore it only shows the formation relevant with the present invention.
As shown in Fig. 1 ~ 2, the servomotor locking device of the present invention's design, comprise lock spindle blade 10, lock ingot flashboard 20 and drive the lock ingot oil cylinder 30 locking the activity of ingot flashboard 20, described lock spindle blade 10 is multidiameter shaft, lock spindle blade 10 is fixedly connected with the piston rod external part of master cylinder, and lock spindle blade 10 is arranged on the below of lock ingot oil cylinder 30, and described lock ingot flashboard 20 offers draw-in groove 21, lock ingot flashboard 20 is connected on the shaft shoulder of lock spindle blade 10 by draw-in groove 21, and lock ingot flashboard 20 is fixedly connected with lock ingot oil cylinder 30.
As shown in Figure 2, described lock ingot oil cylinder 30 comprises lock ingot pull bar 31, lock ingot piston 32, lock ingot cylinder body 33 and is fixedly mounted on lock ingot cylinder cap 34 and the lock ingot cylinder head 35 of lock ingot cylinder body 33 end respectively, described lock ingot piston 32 coordinates with the motive sealing of lock ingot cylinder body 33, the axis of described lock ingot pull bar 31 and the axes normal of lock spindle blade 10, lock ingot pull bar 31 one end is fixed on lock ingot piston 32, and the other end is fixedly connected with lock ingot flashboard 20 through lock ingot cylinder head 35.
As shown in Figures 2 and 3, movable straight down in order to ensure lock ingot flashboard 20, also comprise guide plate 40, described guide plate 40 is fixedly connected with lock ingot cylinder head 35, guide plate 40 offers " U " type guiding groove 41, the inwall of described guiding groove 41 is slidably connected with lock ingot flashboard 20 outer side surface.
Below in conjunction with accompanying drawing 1 ~ 3, the working principle of servomotor locking device of the present invention is described: when needs overhaul unit, the piston of guide vane servomotor turns left activity to closed positions, lock ingot flashboard 20 is movable downwards under the lock ingot pull bar 31 of lock ingot oil cylinder 30 drives, making to lock ingot flashboard 20 is stuck on the shaft shoulder of lock spindle blade 10, the activity thus the piston of stop servomotor is turned right, namely stops to opening direction activity; The servomotor locking device of the present invention's design, contact with the shaft shoulder of lock spindle blade 10 by arranging lock ingot flashboard 20, add area of contact, improve the ability of the opposing contact stress of locking device, ensure that the normal lock ingot function of locking device, avoid staff causes peril in maintenance servomotor process generation because locking device lost efficacy, working stability is reliable.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff not departing from scope of the present invention, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. a servomotor locking device, it is characterized in that: comprise lock spindle blade (10), lock ingot flashboard (20) and the lock ingot oil cylinder (30) driving lock ingot flashboard (20) movable, described lock spindle blade (10) is multidiameter shaft, lock spindle blade (10) is fixedly connected with the piston rod external part of master cylinder, lock spindle blade (10) is arranged on the below of lock ingot oil cylinder (30), described lock ingot flashboard (20) offers draw-in groove (21), lock ingot flashboard (20) is connected on the shaft shoulder of lock spindle blade (10) by draw-in groove (21), lock ingot flashboard (20) is fixedly connected with lock ingot oil cylinder (30).
2. servomotor locking device as claimed in claim 1, it is characterized in that: described lock ingot oil cylinder (30) comprises lock ingot pull bar (31), lock ingot piston (32), lock ingot cylinder body (33) and be fixedly mounted on lock ingot cylinder cap (34) and lock ingot cylinder head (35) of lock ingot cylinder body (33) end respectively, described lock ingot piston (32) coordinates with cylinder body (33) motive sealing of lock ingot, the axis of described lock ingot pull bar (31) and the axes normal of lock spindle blade (10), lock ingot pull bar (31) one end is fixed on lock ingot piston (32), the other end is fixedly connected with lock ingot flashboard (20) through lock ingot cylinder head (35).
3. servomotor locking device as claimed in claim 1, it is characterized in that: also comprise guide plate (40), described guide plate (40) is fixedly connected with lock ingot cylinder head (35), guide plate (40) offers " U " type guiding groove (41), the inwall of described guiding groove (41) is slidably connected with lock ingot flashboard (20) outer side surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627656.6A CN104373277A (en) | 2014-11-10 | 2014-11-10 | Servomotor locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627656.6A CN104373277A (en) | 2014-11-10 | 2014-11-10 | Servomotor locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373277A true CN104373277A (en) | 2015-02-25 |
Family
ID=52552390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410627656.6A Pending CN104373277A (en) | 2014-11-10 | 2014-11-10 | Servomotor locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373277A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111188589A (en) * | 2020-01-07 | 2020-05-22 | 姜兴安 | Ram blowout preventer for well control device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920351A (en) * | 1974-12-04 | 1975-11-18 | Allis Chalmers | Automatic locking device for hydraulic turbine wicket gates |
| JPH10184524A (en) * | 1996-12-27 | 1998-07-14 | Toshiba Corp | Guide vane opening/closing device for hydraulic machine |
| 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 |
| CN102852695A (en) * | 2012-09-18 | 2013-01-02 | 哈尔滨电机厂有限责任公司 | Manual and hydraulic integrated locking device |
| CN103452735A (en) * | 2013-09-16 | 2013-12-18 | 常州液压成套设备厂有限公司 | Guide vane servomotor |
| CN204186522U (en) * | 2014-11-10 | 2015-03-04 | 常州液压成套设备厂有限公司 | Servomotor locking device |
-
2014
- 2014-11-10 CN CN201410627656.6A patent/CN104373277A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920351A (en) * | 1974-12-04 | 1975-11-18 | Allis Chalmers | Automatic locking device for hydraulic turbine wicket gates |
| JPH10184524A (en) * | 1996-12-27 | 1998-07-14 | Toshiba Corp | Guide vane opening/closing device for hydraulic machine |
| 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 |
| CN102852695A (en) * | 2012-09-18 | 2013-01-02 | 哈尔滨电机厂有限责任公司 | Manual and hydraulic integrated locking device |
| CN103452735A (en) * | 2013-09-16 | 2013-12-18 | 常州液压成套设备厂有限公司 | Guide vane servomotor |
| CN204186522U (en) * | 2014-11-10 | 2015-03-04 | 常州液压成套设备厂有限公司 | Servomotor locking device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111188589A (en) * | 2020-01-07 | 2020-05-22 | 姜兴安 | Ram blowout preventer for well control device |
| CN111188589B (en) * | 2020-01-07 | 2022-01-14 | 濮阳市轮通机械设备修造有限公司 | Ram blowout preventer for well control device |
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| PB01 | Publication | ||
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Application publication date: 20150225 |