CN204239123U - The controlling mechanism of model turbine runner bucket - Google Patents
The controlling mechanism of model turbine runner bucket Download PDFInfo
- Publication number
- CN204239123U CN204239123U CN201420598752.8U CN201420598752U CN204239123U CN 204239123 U CN204239123 U CN 204239123U CN 201420598752 U CN201420598752 U CN 201420598752U CN 204239123 U CN204239123 U CN 204239123U
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- China
- Prior art keywords
- transmission shaft
- controlling mechanism
- turbine runner
- worm screw
- model
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- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 210000000078 claw Anatomy 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 14
- 230000001276 controlling effect Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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 kind of controlling mechanism of model turbine runner bucket, described model turbine runner comprises some blades, wheel hub and draft cone, described regulation structure comprises transmission shaft, be located in described draft cone, this transmission shaft one end is provided with the positioning part be connected with the connecting lever of each blade; Worm gear, is sheathed on described transmission shaft, for driving drive axis; Worm screw, coordinates with described worm drive, and worm screw one end has the operation unit that worm screw can be driven to rotate under External Force Acting, the sidewall of described draft cone corresponds to this operation unit place and is provided with preformed hole.This controlling mechanism, when adjustment of blade angle, without the need to pulling down model runner and runner, even being tested pipeline without the need to discharging water, special tool only need be utilized to rotate stripper bolt and lock nut; Simple, convenient, safety, saves the adjustment of blade angle time greatly, and achieves the synchronization regulation of blade angle.
Description
Technical field
The utility model belongs to water turbine field, especially relates to a kind of controlling mechanism for model turbine runner bucket.
Background technique
For adjustable shutter model turbine, in model test process, need test the properties under different leaves angle, therefore need to adjust blade angle continually, the simplicity of now blade angle adjustment operation also just seems particularly important.Model leaf angle adjusting method conventional at present mainly contains following two kinds:
1, according to groove, each blade angle is adjusted separately
During the method adjustment blade angle, need test pipeline to discharge water, disassembly model draft tube, adjusts separately each blade angle one by one according to the graduation line on wheel hub afterwards.The advantage of the method is that runner internal structure is simple, and processing, assembling etc. are all than being easier to.At every turn shortcoming all needs dismounting model runner, and spended time is longer, and can not realize synchronization regulation due to each blade angle, therefore also just can not ensure the conformity of each blade angle;
2, whole runner is disassembled utilize model adjustment
During the method adjustment blade angle, test pipeline discharges water by same needs, also needs disassembly model draft tube and runner envelope, is removed by whole runner afterwards, utilizes blade angle to adjust model and adjusts separately one by one each blade angle.The advantage of the method is that runner internal structure is simple, and processing, assembling etc. all than being easier to, and can ensure the accuracy that each blade angle adjusts; At every turn shortcoming all needs dismounting model runner and runner, and even need the installation precision readjusting runner, spended time is long.
Model utility content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of without the need to disassembly model runner and runner, and can realize the controlling mechanism of blade angle synchronization regulation.
To achieve these goals, the utility model by the following technical solutions: a kind of controlling mechanism of model turbine runner bucket, described model turbine runner comprises some blades, wheel hub and draft cone, and described regulation structure comprises
Transmission shaft, is located in described draft cone, and this transmission shaft one end is provided with the positioning part be connected with the connecting lever of each blade;
Worm gear, is sheathed on described transmission shaft, for driving drive axis;
Worm screw, coordinates with described worm drive, and worm screw one end has the operation unit that worm screw can be driven to rotate under External Force Acting, the sidewall of described draft cone corresponds to this operation unit place and is provided with preformed hole.
Further, the positioning part of described transmission shaft comprises for connection for transmission axle and the link pin of each blade connecting lever and the claw that matches with link pin, and one end of link pin is connected with claw, and the other end is connected with the end of transmission shaft through after connecting lever.
As preferably, the stripper bolt that described worm screw comprises worm screw body and is connected with worm screw body, the end of this stripper bolt forms described operation unit.
As preferably, described wheelboss side wall is provided with reference line, and each blade is provided with the graduation line corresponding with blade angle.
As preferably, described transmission shaft is provided with the locking framework for preventing it from rotating.
Described locking framework comprises locking framework body and has the lock nut that can realize unblock, lock function under External Force Acting; The sidewall of described draft cone corresponds to this lock nut place and be provided with preformed hole.
Further, described worm gear is connected by locating stud and transmission shaft.
This controlling mechanism mainly contains linking mechanism and worm-and-wheel gear is formed, by installing linking mechanism in the wheel hub of water turbine, the connecting lever of each blade is connected on same transmission shaft, rotate this transmission shaft, just the connecting lever of each blade can be driven to rotate, thus realize the synchronization regulation of blade angle.
In the draft cone of water turbine, worm-and-wheel gear is installed, the operation unit of special tool rotary worm is utilized outside draft cone, just worm gear and drive axis can be driven, thus drive each blade connecting lever to rotate, can realize, when not disassembly model runner and runner, adjusting blade angle.
Be provided with a reference line in runner boss side, be provided with and blade angle groove one to one often opening on blade simultaneously, during rotation blade, when certain groove and hub side reference line in alignment time, blade angle is now the angle representated by this groove.
In draft cone, locking framework is installed, regulate the lock nut of locking framework, locking framework is tightly fastened on transmission shaft, the rotation of transmission shaft is braked, thus realize the locking of blade angle, to ensure that, in model test process, blade angle arbitrarily can not change along with the impact of current.
Worm gear structure has self-locking performance.When the angle of lead of worm screw is less than the equivalent friction angle of meshing wheel between cog, mechanism has self-locking performance, can realize reverse self-locking, namely can only drive worm gear by worm screw, and can not drive worm screw by worm gear.
The port of adjustment of blade angle and blade angle locking, is all arranged in the preformed hole of draft cone outer surface.When adjusting vane angle, only the water in test pipeline need be bled off a part, even without the need to discharging water, utilize special tool, by the preformed hole at draft tube transparent pipe place, be inserted in the preformed hole of draft cone outer surface, can operate adjustment of blade angle mechanism and locking framework.
The seal request of this controlling mechanism to runner inside is low, is mechanical drive mode, without the risk that hydraulic oil is revealed due to what adopt.
In sum, the utility model has the following advantages: this controlling mechanism, when adjustment of blade angle, without the need to pulling down model runner and runner, even being tested pipeline without the need to discharging water, special tool only need be utilized to rotate stripper bolt and lock nut; Simple, convenient, safety, saves the adjustment of blade angle time greatly, and achieves the synchronization regulation of blade angle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cross section view of Fig. 1.
Fig. 3 is the B-B cross section view of Fig. 1.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, clear, complete description is carried out to the technological scheme in the utility model embodiment.
As Figure 1-3, a kind of controlling mechanism of model turbine runner bucket, described model turbine runner mainly comprises 4 blades 1, wheel hub 4 and draft cone 8, and described regulation structure mainly comprises transmission shaft 7, worm gear 9 and worm screw 6.It is inner that transmission shaft is located at described draft cone, transmission shaft comprises columniform axis body 77 and is located at the positioning part of axis body left end, positioning part is used for being connected with the connecting lever 11 of each blade 1, concrete, this positioning part comprises link pin 71 and claw 72, the position of this claw 72 is all corresponding with blade piece number with quantity, namely in the present embodiment, be provided with 4 claws, each claw is provided with the through hole passed for link pin 71, link pin 71 one end is connected with this through hole, the other end is through after connecting lever 11, insert in the groove of transmission shaft left end, the intermediate portion of link pin snaps in the U-type groove of connecting lever, do not show in figure, described worm gear 9 is set on axis body 77, geo-stationary between worm gear and axis body, in the present embodiment, worm gear and axis body 77 is fixed by locating stud 91, makes worm gear to drive drive axis, the stripper bolt 61 that described worm screw 6 comprises worm screw body 62 and is connected with worm screw body, the end of this stripper bolt 61 is provided with an operation unit 611, this operation unit 611 is under External Force Acting, worm screw can be driven to rotate, such as, this operation unit 611 can be provided at the cruciform groove of worm end, the special tool matched with this cruciform groove by, can worm screw be driven fast to rotate,
In the present embodiment, worm screw body 62 surface is provided with the screw thread coordinated with worm drive, and its inside is provided with through hole, stripper bolt 61 is through this through hole, be fixed in draft cone, and by locating stud 63, stripper bolt and worm screw fixed, make stripper bolt that worm screw can be driven to rotate.Concrete, the sidewall of described draft cone 8 is offered a preformed hole 88, the operation unit 611 of described stripper bolt is placed in this preformed hole 88, during operation, special tool is utilized to insert in preformed hole, after coordinating with stripper bolt end, get final product rotary worm thus drive worm gear and drive axis, 4 blades are rotated simultaneously.
Further, in order to improve convenience and the accuracy of adjustment, described wheel hub 4 sidewall is provided with a reference line 41, and each blade 1 is respectively equipped with the graduation line 12 corresponding with blade angle.Rotation blade, when certain groove and hub side reference line in alignment time, blade angle is now the angle representated by this groove.
Described transmission shaft 7 is provided with the locking framework for preventing it from rotating, and this locking framework comprises locking framework body 31 and lock nut 32.Utilize special tool, rotational lock screw rod, locking framework is tightly fastened on transmission shaft, thus the rotation of transmission shaft is braked, realize the locking of blade angle, to ensure that, in model test process, blade angle arbitrarily can not change along with the impact of current.
This controlling mechanism is applied in adjustable shutter model turbine runner, belongs to mechanical drive mode; When needing adjusting vane angle, first utilizing special tool by the latch-release of transmission shaft, namely allowing transmission shaft be in a kind of state free to rotate; Then, utilize special tool to be rotatably provided in stripper bolt in draft cone outer surface preformed hole, stripper bolt rotates, and the worm screw be fixed together with it is just rotated thereupon, according to worm and gear principle, so the rotary motion for worm gear is transmitted in the rotary motion of worm screw; Worm gear and transmission shaft are fixed together, and transmission shaft also just rotates thereupon, and because transmission shaft is linked together by link pin and each blade connecting lever, so again achieve the transmittance process of motion, blade angle changes thereupon; When after adjustment of blade angle to required desired value, again utilize special tool to lock blade angle, whole adjustment process be simple, convenient, safety.
The utility model, compared with prototype, does not adopt similar cylinder moving type operation servomotor, employing be mechanical drive mode, structure is simple, and cost is low, convenient for installation and maintenance, and there is not the risk of hydraulic fluid leak; Compared with traditional model turbine adjustment of blade angle method, the method can realize the synchronization regulation of each blade angle, saves regulating time simultaneously.
Worm gear structure is applied in model turbine blade adjustments process, for transmitting the motion between the alternating axis of space two; Only need rotate the stripper bolt be connected with worm screw, just can realize the adjustment of blade angle.Meanwhile, because stripper bolt is arranged in the preformed hole of draft cone outer surface, so just can without the need to dismantling runner, even without the need to discharging water, utilize special tool by the perforate of draft tube transparent section, rotate stripper bolt and can realize, to the adjustment of blade angle, greatly saving regulating time.
Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (7)
1. a controlling mechanism for model turbine runner bucket, described model turbine runner comprises some blades (1), wheel hub (4) and draft cone (8), it is characterized in that: described controlling mechanism comprises
Transmission shaft (7), is located in described draft cone (8), and this transmission shaft one end is provided with the positioning part be connected with the connecting lever of each blade (1) (11);
Worm gear (9), is sheathed on described transmission shaft (7), rotates for driving transmission shaft (7);
Worm screw (6), coordinates with described worm gear (9) transmission, and worm screw one end has the operation unit (611) that worm screw can be driven to rotate under External Force Acting, the sidewall of described draft cone (8) corresponds to this operation unit (611) place and is provided with preformed hole.
2. the controlling mechanism of model turbine runner bucket according to claim 1, it is characterized in that: the positioning part of described transmission shaft comprises for connection for transmission axle and the link pin (71) of each blade connecting lever (11) and the claw (72) that matches with link pin (71), one end of link pin (71) is connected with claw (72), and the other end is connected with the end of transmission shaft afterwards through connecting lever (11).
3. the controlling mechanism of model turbine runner bucket according to claim 1, it is characterized in that: the stripper bolt (61) that described worm screw (6) comprises worm screw body (62) and is connected with worm screw body, the end of this stripper bolt (61) forms described operation unit (611).
4. the controlling mechanism of model turbine runner bucket according to claim 1, is characterized in that: described wheel hub (4) sidewall is provided with reference line (41), and each blade (1) is provided with the graduation line (12) corresponding with blade angle.
5. the controlling mechanism of model turbine runner bucket according to claim 1, is characterized in that: described transmission shaft (7) is provided with the locking framework for preventing it from rotating.
6. the controlling mechanism of model turbine runner bucket according to claim 5, is characterized in that: described locking framework comprises locking framework body (31) and has the lock nut (32) that can realize unblock, lock function under External Force Acting; The sidewall of described draft cone (8) corresponds to this lock nut (32) place and be provided with preformed hole.
7. the controlling mechanism of model turbine runner bucket according to claim 1, is characterized in that: described worm gear (9) is connected by locating stud (91) and transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598752.8U CN204239123U (en) | 2014-10-16 | 2014-10-16 | The controlling mechanism of model turbine runner bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598752.8U CN204239123U (en) | 2014-10-16 | 2014-10-16 | The controlling mechanism of model turbine runner bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239123U true CN204239123U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420598752.8U Expired - Lifetime CN204239123U (en) | 2014-10-16 | 2014-10-16 | The controlling mechanism of model turbine runner bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173666A (en) * | 2020-01-21 | 2020-05-19 | 山东交通学院 | Blade-adjustable tidal current energy water turbine experimental device and method |
-
2014
- 2014-10-16 CN CN201420598752.8U patent/CN204239123U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173666A (en) * | 2020-01-21 | 2020-05-19 | 山东交通学院 | Blade-adjustable tidal current energy water turbine experimental device and method |
| CN111173666B (en) * | 2020-01-21 | 2021-05-25 | 山东交通学院 | Blade-adjustable tidal current energy water turbine experimental device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |