CN201649047U - Hydraulic hoist for gate valve type service gate - Google Patents
Hydraulic hoist for gate valve type service gate Download PDFInfo
- Publication number
- CN201649047U CN201649047U CN2010201625002U CN201020162500U CN201649047U CN 201649047 U CN201649047 U CN 201649047U CN 2010201625002 U CN2010201625002 U CN 2010201625002U CN 201020162500 U CN201020162500 U CN 201020162500U CN 201649047 U CN201649047 U CN 201649047U
- Authority
- CN
- China
- Prior art keywords
- gate
- displacement sensor
- valve
- hydraulic cylinder
- stand
- 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.)
- Expired - Lifetime
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- 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
Abstract
The utility model discloses a hydraulic hoist for a gate valve type service gate, comprising a stand and a hydraulic cylinder vertically and downwards arranged on the stand; a magnetostriction displacement sensor is arranged in a protective cover of an upper end cover of the cylinder body of the hydraulic cylinder, the measuring magnetic ring of the magnetostriction displacement sensor is fixedly sleeved on a piston, and a measuring magnetic bar of the magnetostriction displacement sensor extends into a center measuring hole of a piston rod; the upper end and the lower end of the side wall of the cylinder body of the hydraulic cylinder are provided with two inductance-type high-pressure-resistant approach switches; and the stand is provided with an automatic air intake and exhaust device. The utility model has the advantages that not only the precision of the gatage is improved, but also the inductance-type high-pressure-resistant approach switches play a role of controlling the upper limit position and the lower limit position of the hydraulic cylinder when the magnetostriction displacement sensor is out of work, thereby greatly improving the running reliability of the gate. An air bag type energy accumulator carries out leakage supplement, pressure maintenance and locking on a rod cavity of the hydraulic cylinder, needs no unlocking during gate closure, and improves the capability of resisting the flow impact resulting in the vibration of the gate and the stand.
Description
Technical field
The utility model relates to the reservoir gate valve type working gate, especially relates to the hydraulic hoist that is used for gate valve type working gate.
Background technology
Be to guarantee the normal diversion and power in reservoir power station, be furnished with Pai Shadong respectively at reservoir power station left and right side, bottom hole for sand flushing is arranged husky system to constitute hinge.Arrange the import of husky system and be equipped with Emergency Gate, Emergency Gate, outlet is provided with Service gate, outlet Emergency Gate successively.In order to regulate letdown flow and to guarantee outlet structure escape works preshoot hourglass bucket, need often open and close or local unlatching earial drainage by the husky system works gate of row, and Service gate should possess the swimming of blocking, the husky function of retaining downstream water.Traditional arc Service gate has stable, the little advantage of hoisting capacity of innings open shop, but for the higher reservoir area of downstream tail water, the arc door props up hinge, support arm etc. and all is in the current that roll, and influences the stable operation of arc Service gate, the service requirement that can't satisfy two-way water blocking and keep off downstream sediment.Gate valve type working gate can address the above problem, and adopts wire rope hoist to realize but drive gate valve type working gate at present more, but because wire rope hoist appearance and size is bigger, for avoiding disturbing with tail water door machine, draft tube deck need extend, and causes investment bigger.
The utility model content
The utility model purpose is to provide a kind of control accuracy height, the hydraulic hoist that is used for gate valve type working gate that floor space is little.
For achieving the above object, the utility model can be taked following technical proposals:
The hydraulic hoist that is used for gate valve type working gate described in the utility model, it comprises frame, is arranged on the hydraulic jack on the described frame vertically downward; In the protective cover of described hydraulic jack cylinder body upper end cover, be provided with magnetostrictive displacement sensor, the measurement magnet ring of described magnetostrictive displacement sensor is fixedly set on the described piston rod, and the measurement bar magnet of magnetostrictive displacement sensor extends in the measured hole of piston rod center; It is high pressure resistant near switch to be provided with two inductance types at cylinder block sidewall upper and lower end; Described frame is provided with the automatic air intake and discharge device, described automatic air intake and discharge device is made of the compound outlet valve of the sewage that is interconnected from top to bottom, buffering plug valve, stop valve, and a valve port of described stop valve is connected with the ventilating pipe that the gate shaft top is buried underground.
Described frame is provided with bladder accumulator, and described bladder accumulator is connected with the hydraulic jack rod chamber of headstock gear by the safety valve group.
Magnetostrictive displacement sensor and inductance type that the utility model advantage is to be arranged on the described hydraulic jack are high pressure resistant near switch, not only improved the precision of gatage, simultaneously when magnetostrictive displacement sensor is malfunctioning, inductance type is high pressure resistant to play the upper and lower extreme position effect of control oil cylinder near switch, has improved the gate reliability of operation greatly.The frame of headstock gear is provided with described automatic air intake and discharge device, plays gate shaft highest point gas effect below automatic eliminating or the additional frame.Described bladder accumulator is connected with the hydraulic jack rod chamber of headstock gear by the safety valve group, the locking mechanism that is used for described hydraulic hoist, not only solved existing machinery formula locking mechanism exist when the Xiamen, need unlock, lock mechanism operative is loaded down with trivial details, easily cause the deficiency of maloperation damage equipment; Simultaneously, bladder accumulator is mended cylinder rod chamber and is let out pressurize, locking, need not the device that unlocks when closing, has simplified operation sequence.And improved the ability that water impact causes gate and frame vibration of resisting greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of hydraulic jack described in the utility model.
Fig. 3 is that the B-B of Fig. 2 is to the sectional structure schematic diagram.
Fig. 4 is the I portion enlarged drawing of Fig. 1.
The specific embodiment
Shown in Fig. 1,2,3,4, the hydraulic hoist that is used for gate valve type working gate described in the utility model, it comprises frame 1, is arranged on hydraulic jack 2, bladder accumulator 12 on the described frame 1 vertically downward; Described bladder accumulator 12 is connected by the rod chamber of safety valve group with described hydraulic jack 2.In the protective cover 4 of hydraulic jack 2 cylinder body upper end covers 3, be provided with magnetostrictive displacement sensor, the measurement magnet ring of described magnetostrictive displacement sensor is fixedly set on the piston 13 of hydraulic jack 2, and the measurement bar magnet 6 of magnetostrictive displacement sensor extends in the described piston rod 5 center measured holes; It is high pressure resistant near switch 7,8 to be provided with two inductance types at cylinder block sidewall upper and lower end; The high pressure resistant piston 13 uplink and downlink way limit positions that correspond respectively to hydraulic jack 2 near switch 7,8 of described inductance type; Described frame 1 is provided with the automatic air intake and discharge device, and described automatic air intake and discharge device is made of the compound outlet valve 9 of the sewage that is interconnected from top to bottom, buffering plug valve 10, stop valve 11, and a valve port of described stop valve 11 is connected with the gate shaft top.
Claims (2)
1. hydraulic hoist that is used for gate valve type working gate, it comprises frame (1), is arranged on the hydraulic jack (2) on the described frame (1) vertically downward; It is characterized in that: in the protective cover (4) of described hydraulic jack (2) cylinder body upper end cover (3), be provided with magnetostrictive displacement sensor, the measurement magnet ring of described magnetostrictive displacement sensor is fixedly set on the described piston (13), and the measurement bar magnet (6) of magnetostrictive displacement sensor extends in the measured hole of piston rod (5) center; It is high pressure resistant near switch (7,8) to be provided with two inductance types at cylinder block sidewall upper and lower end; Described frame (1) is provided with the automatic air intake and discharge device, described automatic air intake and discharge device is made of the compound outlet valve of the sewage that is interconnected from top to bottom (9), buffering plug valve (10), stop valve (11), and a valve port of described stop valve (11) is connected with the gate shaft top.
2. according to the described hydraulic hoist that is used for gate valve type working gate of claim 1, it is characterized in that: described frame (1) is provided with bladder accumulator (12), and described bladder accumulator (12) is connected with described hydraulic jack (2) rod chamber by the safety valve group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201625002U CN201649047U (en) | 2010-04-19 | 2010-04-19 | Hydraulic hoist for gate valve type service gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201625002U CN201649047U (en) | 2010-04-19 | 2010-04-19 | Hydraulic hoist for gate valve type service gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201649047U true CN201649047U (en) | 2010-11-24 |
Family
ID=43114274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201625002U Expired - Lifetime CN201649047U (en) | 2010-04-19 | 2010-04-19 | Hydraulic hoist for gate valve type service gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201649047U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850234A (en) * | 2014-03-24 | 2014-06-11 | 黄河勘测规划设计有限公司 | High-water level gate with automatic degassing function |
| CN104314054A (en) * | 2014-11-10 | 2015-01-28 | 常州液压成套设备厂有限公司 | Hydraulic starting and stopping limit device protecting device |
| CN110594240A (en) * | 2019-10-14 | 2019-12-20 | 常州液压成套设备厂有限公司 | Waterproof sealing frame |
-
2010
- 2010-04-19 CN CN2010201625002U patent/CN201649047U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850234A (en) * | 2014-03-24 | 2014-06-11 | 黄河勘测规划设计有限公司 | High-water level gate with automatic degassing function |
| CN103850234B (en) * | 2014-03-24 | 2015-08-19 | 黄河勘测规划设计有限公司 | There is the high water level gate of automatic ventilating function |
| CN104314054A (en) * | 2014-11-10 | 2015-01-28 | 常州液压成套设备厂有限公司 | Hydraulic starting and stopping limit device protecting device |
| CN110594240A (en) * | 2019-10-14 | 2019-12-20 | 常州液压成套设备厂有限公司 | Waterproof sealing frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |