CN102072067B - Four-blade operating mechanism - Google Patents
Four-blade operating mechanism Download PDFInfo
- Publication number
- CN102072067B CN102072067B CN2011100473904A CN201110047390A CN102072067B CN 102072067 B CN102072067 B CN 102072067B CN 2011100473904 A CN2011100473904 A CN 2011100473904A CN 201110047390 A CN201110047390 A CN 201110047390A CN 102072067 B CN102072067 B CN 102072067B
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- blade
- chute
- rocking arm
- piston
- chute body
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- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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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 invention discloses a four-blade operating mechanism. A piston is arranged in a rotating wheel body; blades are arranged in four radial holes which are uniformly formed in the circumferential direction of the rotating wheel body; the blades and rocker arms are connected through blade connecting bolts to form a square structure; a chute body is fixed on the piston and has a cuboid structure; the four side faces of the chute body are opposite to the inner walls of the square structure enclosed by the rocker arms respectively, and are provided with L-shaped chutes; the chutes are distributed on the four side faces of the chute body along the same rotating direction; a sliding block is arranged in each chute and is provided with a shaft head hole; and a shaft head is arranged on the inner end face of each rocker arm deviating from the center of the rocker arm and stretches into a pin hole. The four-blade operating mechanism has a simple and novel structure and is convenient to use, and the efficiency of a unit can be improved while cost is reduced.
Description
Technical field
The present invention relates to a kind of movable propeller turbine, especially relate to a kind of quaterfoil movable propeller turbine blade operating mechanism.
Background technique
Water turbine units in the course of the work, rotate partly and rotating always, and the head in water power plant, flow are with season, constantly change in time, therefore, in order to adapt to the power station changes in flow rate, pursue the operation of unit high-efficiency stable, axial flow hydraulic turbine all wishes to use blade operating mechanism to adjust the operating angle of water turbine blade, thereby adapt to the variation of various head flows and raise the efficiency, but the water turbine blade operating mechanism is installed in the web that rotates part, be to finish in the given confined space, it is extremely important to save the space.Present blade operating mechanism relatively typical case has two kinds, and a kind of is two-way ram and operation stand collocation, and operation stand drives blade by connecting rod; Another kind of two-way ram cylinder drives blade by connecting rod.Two kinds of operating devices all need to come transition with a connecting rod, rather than former moving component directly drive blade, just there are two cover friction pair and correlated parts at the connecting rod two ends, shared space is big and quantity is many, two kinds of blade operating mechanism of typical case are all more numerous than difficulty when design, the casting manufacturability of its major part web is also relatively poor, especially in middle-size and small-size Kaplan turbine.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of novelty simple in structure, easy to operate quaterfoil blade operating mechanism.
Technological scheme of the present invention is as follows: a kind of quaterfoil blade operating mechanism, comprise web and piston, described piston is installed in the described web, it is characterized in that: at described web four radial holes are set evenly circumferentially, blade all is installed in each radial hole, and described blade the inner is provided with torque pin, and this blade is connected with rocking arm through the blade connecting bolt, described torque pin is located between described rocking arm and the described blade carries out the moment of torsion transmission, and described rocking arm forms the square structure; At described piston the chute body is arranged fixedly, this chute body is positive four limit body structures, the inwall of the square structure that four sides of described chute body form with described rocking arm respectively over against; On four sides of described chute body, all have the chute of " L " font, each described chute all is distributed on four sides of described chute body along same rotation direction, in described chute, slide block is housed, have the spindle nose hole on this slide block, be provided with spindle nose at this rocking arm interior edge face that departs from described rocking arm center, described spindle nose stretches in the described spindle nose hole, forms arm of force relation.
Adopt above structure, the chute body is connected with rocking arm by slide block to make that chute is external and slides in the square that rocking arm forms, thus the radially and circumferentially play of----chute body that prevents rocking arm, and it is more reliable that cooperating between slide block and rocking arm, the blade linked; In the chute on the chute body side surface slide block is housed, the spindle nose of slide block on rocking arm is connected with rocking arm, thereby realize the continuous action relation between chute body and the rocking arm, when piston alternately supplies pressure oil and oil return at the two ends of piston cylinder, piston is made axial linear movement along the set main shaft axis, under the effect of piston, being fixed on chute body on the piston also makes axial straight line and moves, under the effect of chute, being installed in slide block in the chute also must follow and make axial straight line and move, simultaneously because slide block is connected with rocking arm and blade by spindle nose, slide block also must the while under the restriction of rocking arm spindle nose along the centre of support axis rotation of rocking arm and blade, at this moment, slide block moves axially in chute to power, and drive rocking arm and blade rotate together around the centre of support of this rocking arm and blade, and then finishes the adjustment to the blade angle; The different distance of the movement of slide block in chute namely can realize the adjustment of blade different amount in the above structure; In the above structure, torque pin is used for transmitting rocking arm to the steering force of blade, and four rocking arms are installed back formation square structure naturally, it should be noted that also the distance of spindle nose center line and rocking arm center line is the arm of force of operation blade, and this distance value is the bigger the better in principle.
Described chute body is sleeved on the described piston, between this chute body and piston, flat key is housed, at described piston right-hand member snap ring is arranged fixedly, this snap ring and described chute body right side are close to, in the above structure, the circumferential play that flat key can prevent piston and chute body is set, snap ring is set makes the power of piston formation pass to the chute body, left during left and right moving, make the chute body to be moved to the left as an integral body with piston at piston.
Thrust axle sleeve and anti-push shaft cover are housed in described radial hole, and described thrust axle sleeve is positioned at described anti-push shaft cover inboard, in described thrust axle sleeve and anti-push shaft cover, described rocking arm and blade are installed respectively, are positioned by positioning spigot between this rocking arm and the described blade.Above structure is because the existence of thrust axle sleeve and anti-push shaft cover, make the working surface of this thrust axle sleeve and anti-push shaft cover adopt movingly with being connected of blade, rocking arm, the integrative-structure that blade is connected with rocking arm rotates in thrust axle sleeve and anti-push shaft cover flexibly, and then forms the driven system that a compound single fulcrum supports.
Described spindle nose is positioned at the edge of described rocking arm, the common center line of this spindle nose center line and described blade and rocking arm is parallel, and described spindle nose and described rocking arm are wholely set, distance in the above structure between spindle nose center line and the blade center line is for forming the arm of force, the general selection of this arm of force is better, the structure that structure of the present invention is more traditional can increase about 15%, therefore, make spindle nose away from the blade center line, thereby improve the long rotation arm of force, make the rotation of rocking arm and blade reliable more or can suitably reduce the diameter of piston.
For blade and rocking arm can be rotated reliably around its centre of support, described blade is fixedlyed connected through described blade connecting bolt with the rocking arm right part, and left part is equipped with described torque pin.
Enter in the web for fear of water, the blade sealing is housed between described web and described blade.
The described chute body of the elongated slot partial parallel left and right sides end face of described chute, and described slide block is encased in the elongated slot part of this chute from the short slot part of this chute, the vertical described chute body of the short slot part of described chute left and right sides end face, and the short slot part of this chute passes described chute body left side.Above structure, the chute elongated slot partly is work nest, short slot part is divided into mounting groove, guiding and transition when work nest plays assembling, usefulness when mounting groove is work, four slide blocks slip into simultaneously from this mounting groove and carry out the transition to work nest, by rotating rocking arm, slide block is slided in the work nest groove, promote piston or chute body again, rocking arm has been rotated; Above structure can make things convenient for the installation and removal of slide block simultaneously, can directly slip in the chute or taking-up from the port of the short slot part of chute slide block.
Beneficial effect: compare with existing blade operating mechanism, the present invention has following characteristics: 1, no longer need connecting rod and more reliable; 2, reduced friction pair, transmission efficiency is improved; 3, the part number greatly reduced during water turbine rotated partly; 4, shared structure space dwindles, and is compacter, is easy to design; 5, simplify the web complicated shape, reduced manufacture difficulty; 6, shorten design, manufacturing, assembly period, reduced cost; 7, applicable scope is that blade process oil pressure rating is between 2.5～6.3 MPa, just in time with on domestic and international normal conditions is corresponding.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view among Fig. 1;
Fig. 3 is the B-B sectional view among Fig. 2;
Fig. 4 is the structural representation of chute body 6 among Fig. 1;
Fig. 5 is the right elevation of Fig. 4;
Fig. 6 is the structural representation of slide block 7 among Fig. 1;
Fig. 7 is the C-C sectional view among Fig. 6.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As Fig. 1～quaterfoil blade operating mechanism shown in Figure 7, comprise web 1 and piston 2, described piston 2 is installed in the described web 1, the structure of described web 1 and piston 2 is existing structure, do not give unnecessary details at this, at described web 1 four radial hole 1a are set evenly circumferentially, in each radial hole 1a, blade 4 is installed all, blade sealing 13 is housed between described web 1 and described blade 4, described blade 4 the inners are provided with torque pin 14, this blade 4 is connected with rocking arm 3 through blade connecting bolt 5, and described torque pin 14 is located between described rocking arm 3 and the described blade 4 carries out the moment of torsion transmission, and described rocking arm 3 forms the square structure; At described piston 2 chute body 6 is arranged fixedly, be that described chute body 6 is sleeved on the described piston 2, between this chute body 6 and piston 2, flat key 9 is housed, at described piston 2 right-hand members snap ring 10 is arranged fixedly, this snap ring 10 is close to described chute body 6 right sides, described chute body 6 is positive four limit body structures, the inwall of the square structure that four sides of described chute body 6 surround with described rocking arm 3 respectively over against, thereby make chute body 6 be complementary with four rocking arms 3 and cooperate; On 6 four sides of described chute body, all have the chute 6a of " L " font, each described chute 6a all is distributed on four sides of described chute body 6 along same rotation direction, in described chute 6a, slide block 7 is housed, have spindle nose hole 7a on this slide block 7, be provided with spindle nose 8 at these rocking arm 3 interior edge faces that depart from described rocking arm 3 centers, described spindle nose 8 stretches in the described spindle nose hole 7a, and the distance at the center line of described spindle nose 8 and rocking arm center is the power operating arm of blade.
It can also be seen that in conjunction with Fig. 1 and Fig. 2: thrust axle sleeve 11 and anti-push shaft cover 12 is housed in described radial hole 1a, and described thrust axle sleeve 11 is positioned at described anti-push shaft and overlaps 12 inboards, in described thrust axle sleeve 11 and anti-push shaft cover 12, described rocking arm 3 and blade 4 are installed respectively, are positioned by positioning spigot between this rocking arm 3 and the described blade 4.
See also Fig. 2: described spindle nose 8 is positioned at the edge of described rocking arm 3, the common center line of these spindle nose 8 center lines and described blade 4 and rocking arm 3 is parallel, the size of the distance of two center lines is the length of blade 4 arm of forces, and described spindle nose 8 is wholely set with described rocking arm 3, thereby makes rocking arm 3, blade 4 and spindle nose 8 form the driven system that a compound single fulcrum supports.
See also Fig. 1: described blade 4 is fixedlyed connected through described blade connecting bolt 5 with rocking arm 3 right parts, and left part is equipped with described torque pin 14.
See also Fig. 4 and Fig. 5: described chute body 6 left and right sides end faces of described chute 6a elongated slot partial parallel, and described slide block 7 is encased in the elongated slot part of this chute 6a from the short slot part of this chute 6a, vertical described chute body 6 left and right sides end faces of the short slot part of described chute 6a, and the short slot part of this chute 6a passes described chute body 6 left sides.
Working procedure of the present invention is such: when piston 2 alternately supplies pressure oil and oil return at the two ends of piston cylinder, piston 2 is done axial motion left, under the effect of piston 2, the chute body 6 that is fixed on the piston 2 also is moved to the left, under the effect of chute 6a, the slide block 7 that is installed in the chute 6a also is moved to the left, because slide block 7 is connected with rocking arm 3 by the spindle nose 8 of rocking arm 3 end edge; rocking arm 3 can only rotate along the centre of support of rocking arm 3 and blade 4 under the restriction of rocking arm 3 at slide block 7 again; at this moment; slide block 7 not only is moved to the left; also make circular movement around the center line of rocking arm 3 and blade 4 in chute 6a simultaneously, this just realizes that piston 2 drives chute bodies 6, and chute body 6 is by chute 6b drive slide block 7; slide block 7 driving rocking arms 3, and then finishes the adjustment to blade 4 angles; The different distance of the movement of slide block 7 in chute 6a can realize the adjustment of blade 4 different amount in the above structure.Slide block 7 is the sine value of the spindle nose 8 center radius corners at rocking arm 3 inner end edges at the stroke that is moved to the left among the present invention, radial stroke then is its cosine value, and general blade 4 corners can be above 40 °, so the axial stroke that is moved to the left can be far longer than radial stroke, and pursuit is exactly to wish that the radial motion space is less, the structure space that mechanism accounts for is just little, in limited space, just can suitably strengthen rocking arm 3 radiuses---the arm of force, the increase of the arm of force, just can reduce piston 2 diameters, or reduce unit operation oil pressure grade.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. quaterfoil blade operating mechanism, comprise web (1) and piston (2), described piston (2) is installed in the described web (1), it is characterized in that: at described web (1) four radial holes (1a) are set evenly circumferentially, blade (4) all is installed in each radial hole (1a), described blade (4) the inner is provided with torque pin (14), this blade (4) is connected with rocking arm (3) through blade connecting bolt (5), described torque pin (14) is located between described rocking arm (3) and the described blade (4) carries out the moment of torsion transmission, and described rocking arm (3) forms the square structure; At described piston (2) chute body (6) is arranged fixedly, this chute body (6) is positive four limit body structures, the inwall of the square structure that four sides of described chute body (6) form with described rocking arm (3) respectively over against; On (6) four sides of described chute body, all have the chute (6a) of " L " font, each described chute (6a) all is distributed on four sides of described chute body (6) along same rotation direction, slide block (7) is housed in described chute (6a), have spindle nose hole (7a) on this slide block (7), be provided with spindle nose (8) at this rocking arm (3) interior edge face that departs from described rocking arm (3) center, described spindle nose (8) stretches in the described spindle nose hole (7a).
2. quaterfoil blade operating mechanism according to claim 1, it is characterized in that: described chute body (6) is sleeved on the described piston (2), between this chute body (6) and piston (2), flat key (9) is housed, at described piston (2) right-hand member snap ring (10) is arranged fixedly, this snap ring (10) is close to described chute body (6) right side.
3. quaterfoil blade operating mechanism according to claim 1, it is characterized in that: thrust axle sleeve (11) and anti-push shaft cover (12) are housed in described radial hole (1a), and described thrust axle sleeve (11) is positioned at described anti-push shaft cover (12) inboard, described rocking arm (3) and blade (4) are installed respectively in described thrust axle sleeve (11) and anti-push shaft cover (12), are positioned by positioning spigot between this rocking arm (3) and the described blade (4).
4. quaterfoil blade operating mechanism according to claim 1, it is characterized in that: described spindle nose (8) is positioned at the edge of described rocking arm (3), the common center line of this spindle nose (8) center line and described blade (4) and rocking arm (3) is parallel, and described spindle nose (8) is wholely set with described rocking arm (3).
5. quaterfoil blade operating mechanism according to claim 1, it is characterized in that: described blade (4) is fixedlyed connected through described blade connecting bolt (5) with rocking arm (3) right part, and left part is equipped with described torque pin (14).
6. quaterfoil blade operating mechanism according to claim 1 is characterized in that: blade sealing (13) is housed between described web (1) and described blade (4).
7. quaterfoil blade operating mechanism according to claim 1, it is characterized in that: the described chute body of the elongated slot partial parallel of described chute (6a) (6) left and right sides end face, and described slide block (7) is encased in the elongated slot part of this chute (6a) from the short slot part of this chute (6a), the vertical described chute body of the short slot part of described chute (6a) (6) left and right sides end face, and the short slot part of this chute (6a) passes described chute body (6) left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100473904A CN102072067B (en) | 2011-02-28 | 2011-02-28 | Four-blade operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100473904A CN102072067B (en) | 2011-02-28 | 2011-02-28 | Four-blade operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102072067A CN102072067A (en) | 2011-05-25 |
| CN102072067B true CN102072067B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100473904A Expired - Fee Related CN102072067B (en) | 2011-02-28 | 2011-02-28 | Four-blade operating mechanism |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430923A (en) * | 2011-09-30 | 2012-05-02 | 东方电气集团东方电机有限公司 | Method for turning over turning wheel of water turbine in the air |
| CN103075290A (en) * | 2012-11-29 | 2013-05-01 | 庄河市天成机械有限公司 | Runner hub |
| CN106593748B (en) * | 2017-01-25 | 2018-10-23 | 河海大学 | A kind of horizontal axis tidal current energy hydraulic turbine experimental provision and its experimental method |
| CN111156123B (en) * | 2020-01-21 | 2021-05-25 | 山东交通学院 | Horizontal shaft tidal current energy water turbine experimental device and experimental method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954474A (en) * | 1996-03-28 | 1999-09-21 | Voith Hydro, Inc. | Hydro-turbine runner |
| CN2435538Y (en) * | 1999-07-05 | 2001-06-20 | 肖元龙 | Rotary propeller turbine rotating wheel |
| WO2002055884A1 (en) * | 2001-01-10 | 2002-07-18 | Voith Siemens Hydro Power Generation Gmbh & Co. Kg | Rotor for a water turbine or water pump |
| CN201963454U (en) * | 2011-02-28 | 2011-09-07 | 重庆云河水电股份有限公司 | Operation mechanism of four-blade paddle |
-
2011
- 2011-02-28 CN CN2011100473904A patent/CN102072067B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954474A (en) * | 1996-03-28 | 1999-09-21 | Voith Hydro, Inc. | Hydro-turbine runner |
| CN2435538Y (en) * | 1999-07-05 | 2001-06-20 | 肖元龙 | Rotary propeller turbine rotating wheel |
| WO2002055884A1 (en) * | 2001-01-10 | 2002-07-18 | Voith Siemens Hydro Power Generation Gmbh & Co. Kg | Rotor for a water turbine or water pump |
| CN201963454U (en) * | 2011-02-28 | 2011-09-07 | 重庆云河水电股份有限公司 | Operation mechanism of four-blade paddle |
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| CN102072067A (en) | 2011-05-25 |
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