CN202012439U - Guide blade transmitting mechanism for water turbine - Google Patents
Guide blade transmitting mechanism for water turbine Download PDFInfo
- Publication number
- CN202012439U CN202012439U CN2011201066366U CN201120106636U CN202012439U CN 202012439 U CN202012439 U CN 202012439U CN 2011201066366 U CN2011201066366 U CN 2011201066366U CN 201120106636 U CN201120106636 U CN 201120106636U CN 202012439 U CN202012439 U CN 202012439U
- Authority
- CN
- China
- Prior art keywords
- ring
- guide vane
- guide blade
- stator
- vane lever
- 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 - Fee Related
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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
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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a guide blade transmitting mechanism for a water turbine. The guide blade transmitting mechanism for the water turbine comprises a control ring, a guide blade, a guide blade arm and a connecting plate, wherein the two ends of the connecting plate are connected with the control ring and the guide blade arm through pins respectively; the guide blade arm is fixed on the journal of the guide blade through a frication sleeve; the frication sleeve consists of an open inner ring, an open outer ring, two extrusion taper rings and a locking bolt; the inner ring is sleeved on the journal of the guide blade; the outer ring contacts the guide blade arm; the two extrusion taper rings are arranged in a clearance between the inner ring and the outer ring; the small ends of the two extrusion taper rings are in butt joint with each other; a through hole is formed in one of the two extrusion taper rings and a screw hole is correspondingly formed in the other extrusion taper ring; and the locking bolt is inserted from the through hole in one of the two extrusion taper rings into the screw hole in the other extrusion taper ring.
Description
Technical field
The utility model relates to a kind of guide vanes of water turbine driving mechanism that is used for Hydropower Plant.
Background technique
At present, break pin commonly used---divide the half bond gate linkage, this mechanism comprises control ring, stator, guide vane lever and connecting plate, and guide vane lever is fixed on the axle journal of stator by minute half bond, one end of connecting plate links to each other with guide vane lever by break pin, and the other end links to each other with control ring by pin.Adopt said mechanism, utilize the moment of torsion transmission that divides half bond to realize stator and guide vane lever, utilize break pin to realize the accident protection of mechanism.Adopt said mechanism, at first divide half bond when producing because the non-constant of rigidity, yielding, the scrappage height is difficult to reach quality requirement, processing heat treatment difficulty height, cost of production is big and manufacturing efficiency is low.Secondly, in the gate linkage course of action, when the stator motion is obstructed, break pin is subjected to the effect of huge additional bending moment, cause maximum stress on its disrumpent feelings cross section to reach the ultimate strength of material itself, finally cause break pin to rupture, in one group of stator, disrumpent feelings as the break pin that a stator is wherein arranged, this stator will be out of hand, freely rotates in current, produces chain reaction, accident enlarges, and causes the water power plant to cause a serious accident.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of simple in structure, guide vanes of water turbine driving mechanism of using easy to maintenance and security of operation.
The technical solution of the utility model is as follows: a kind of guide vanes of water turbine driving mechanism, comprise control ring, stator, guide vane lever and connecting plate, the two ends of described connecting plate are connected with guide vane lever with control ring by pin respectively, described guide vane lever is fixed on the axle journal of stator by friction sleeve, described friction sleeve is by encircling in the open type, the open type outer shroud, two are pushed conical ring and lock bolt composition, described inner ring sleeve is contained on the axle journal of stator, described outer shroud contacts with guide vane lever, be provided with two extruding conical rings in the gap between interior ring and outer shroud, the small end butt joint of two extruding conical rings, one of them extruding conical ring is provided with through hole, correspondence is provided with screw on another extruding conical ring, and described lock bolt inserts the screw of another extruding conical ring from the through hole of one of them extruding conical ring.
Adopt technique scheme, with friction sleeve guide vane lever is fixed on the axle journal of stator, play the effect of transmitting torque, the friction sleeve cost of production is low on the one hand, the manufacturing efficiency height; On the other hand, when stator motion is obstructed, the frictional force between stator and the friction sleeve surpasses critical value will skid, and guide vane lever still can be realized freely rotating, thereby can not cause certain parts overvoltage and damage, and make unit safety operation.The utility model cancellation break pin when breaking down, does not need to change part, uses easy to maintenancely, reduces cost, and guarantees the safe operation of hydraulic generator unit.
In technique scheme: the end of the axle journal of described stator is provided with cover plate, and the outside of described guide vane lever is provided with position limit switch, and the roller and the cover plate of described position limit switch keep in touch normality.If position limit switch, transmitting the signal real-time inspection by position limit switch fixes a breakdown, increase the safety reliability of unit operation, when friction sleeve skidded because of accident, stator and cover plate were motionless, and guide vane lever is rotated further, when guide vane lever rotates, the roller of guide vane lever upper stroke switch and cover plate are thrown off, and are in normally open, send warning thereby pass the signal along to the unit control room.We will adorn position limit switch and be numbered on each guide vane lever, guide vane lever break down the back just one by one correspondence search.
Beneficial effect: the utility model is reasonable in design, simple in structure, enforcement is easy, and cost is low, safe and reliable.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is that the E of Fig. 2 is to view;
Fig. 4 is the structural representation of friction sleeve;
Fig. 5 is a ring structure schematic representation in the utility model friction sleeve;
Fig. 6 is the utility model friction sleeve outer shroud structural representation.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Shown in Fig. 1-6, the utility model is by control ring 1, stator 2, guide vane lever 3, connecting plate 4, friction sleeve, cover plate 6 and position limit switch 7 are formed, the two ends of described connecting plate 4 are connected with guide vane lever 3 with control ring 1 by pin respectively, guide vane lever 3 is fixed on the axle journal 2a of stator 2 by friction sleeve, friction sleeve is by encircling 5a in the open type, open type outer shroud 5b, two are pushed conical ring 5c and lock bolt 5d composition, be equipped with an opening on ring 5a and the open type outer shroud 5b in the described open type, ring 5a is sleeved on the axle journal 2a of stator 2 in described, described outer shroud 5b contacts with guide vane lever 3, be provided with two extruding conical ring 5c in the gap between interior ring 5a and outer shroud 5b, the small end butt joint of two extruding conical ring 5c, between the small end of two extruding conical ring 5c spacing is arranged, promptly the small end of two extruding conical ring 5c does not contact, one of them extruding conical ring 5c is provided with through hole, another extruding conical ring 5c goes up correspondence screw is set, described lock bolt 5d is inserted in the screw of another extruding conical ring 5c by the through hole of one of them extruding conical ring 5c, at this moment, interior ring 5a inwardly pushes, 2a holds tightly with axle journal, outer shroud 5b outwards pushes, guide vane lever 3 is held tightly, realized the transmission of moment of torsion between stator 2 and guide vane lever 3; When stator 2 motion is obstructed, the frictional force between stator 2 and the friction sleeve 5 will be skidded above critical value, and guide vane lever 3 still can be realized freely rotating, thereby can not cause certain parts overvoltage and damage.The end of the axle journal 2a of described stator 2 is provided with cover plate 6, and cover plate 6 is by being bolted on the stator 2, and the outside of guide vane lever 3 is provided with position limit switch 7, and the roller 7a and the cover plate 6 of described position limit switch 7 keep in touch normality.When friction sleeve 5 skidded because of accident, stator 2 and cover plate 6 were motionless, and guide vane lever 3 is rotated further, after guide vane lever 3 rotates, the roller 7a of guide vane lever 3 upper stroke switch 7 and cover plate 6 are thrown off, and are in normally open, send warning thereby pass the signal along to the unit control room.We will all adorn on each guide vane lever 3 position limit switch and numbering, guide vane lever 3 break down the back just one by one correspondence search.
Claims (2)
1. guide vanes of water turbine driving mechanism, comprise control ring (1), stator (2), guide vane lever (3) and connecting plate (4), it is characterized in that: the two ends of described connecting plate (4) are connected with guide vane lever (3) with control ring (1) by pin respectively, described guide vane lever (3) is fixed on the axle journal (2a) of stator (2) by friction sleeve, described friction sleeve is by ring (5a) in the open type, open type outer shroud (5b), two are pushed conical ring (5c) and lock bolt (5d) composition, ring (5a) is sleeved on the axle journal (2a) of stator (2) in described, described outer shroud (5b) contacts with guide vane lever (3), be provided with two extruding conical rings (5c) in the gap between interior ring (5a) and outer shroud (5b), the small end butt joint of two extruding conical rings (5c), one of them extruding conical ring (5c) is provided with through hole, another extruding conical ring (5c) is gone up correspondence screw is set, and described lock bolt (5d) inserts the screw of another extruding conical ring (5c) from the through hole of one of them extruding conical ring (5c).
2. according to the described guide vanes of water turbine driving mechanism of claim 1, it is characterized in that: the end of the axle journal (2a) of described stator (2) is provided with cover plate (6), the outside of described guide vane lever (3) is provided with position limit switch (7), and the roller (7a) of described position limit switch (7) keeps in touch normality with cover plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201066366U CN202012439U (en) | 2011-04-13 | 2011-04-13 | Guide blade transmitting mechanism for water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201066366U CN202012439U (en) | 2011-04-13 | 2011-04-13 | Guide blade transmitting mechanism for water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012439U true CN202012439U (en) | 2011-10-19 |
Family
ID=44783051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201066366U Expired - Fee Related CN202012439U (en) | 2011-04-13 | 2011-04-13 | Guide blade transmitting mechanism for water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018977A (en) * | 2014-05-26 | 2014-09-03 | 无锡中能晶科新能源科技有限公司 | Water guiding mechanism of water turbine |
-
2011
- 2011-04-13 CN CN2011201066366U patent/CN202012439U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018977A (en) * | 2014-05-26 | 2014-09-03 | 无锡中能晶科新能源科技有限公司 | Water guiding mechanism of water turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150407 Granted publication date: 20111019 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20171007 Granted publication date: 20111019 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20171007 Granted publication date: 20111019 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20201007 Granted publication date: 20111019 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20180413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |