CN213684255U - Impeller for steam turbine - Google Patents
Impeller for steam turbine Download PDFInfo
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- CN213684255U CN213684255U CN202022432043.0U CN202022432043U CN213684255U CN 213684255 U CN213684255 U CN 213684255U CN 202022432043 U CN202022432043 U CN 202022432043U CN 213684255 U CN213684255 U CN 213684255U
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Abstract
The utility model provides an impeller for steam turbine. Impeller for a steam turbine, comprising: a rotating shaft; the rotating wheel is fixedly sleeved on the rotating shaft; the blades are rotatably arranged on the rotating wheel and are distributed annularly; a plurality of adjustment mechanism, it is a plurality of adjustment mechanism all sets up on the runner, just adjustment mechanism includes spliced pole and mounting groove, spliced pole fixed mounting correspond on the blade, the mounting groove is seted up on the runner, the mounting groove with spliced pole looks adaptation. The utility model provides an impeller for steam turbine has the angle of easy operation, blade and is convenient for adjust, is favorable to ensureing work efficiency, blade convenient to detach and installation, convenient maintenance or the advantage of changing simultaneously.
Description
Technical Field
The utility model relates to a steam turbine technical field especially relates to an impeller for steam turbine.
Background
A steam turbine, also called a steam turbine, is a rotary power machine for converting the energy of steam into mechanical power, the steam turbine is mainly used as a prime mover for power generation, and can also directly drive various pumps, fans, compressors, ship propellers, etc., and can also utilize the exhaust steam or intermediate extraction steam of the steam turbine to meet the heat supply requirements in production and life, the steam turbine usually works under the conditions of high temperature, high pressure and high rotation speed, and is a relatively precise heavy machine, generally, the steam turbine must form a complete set of equipment with a boiler (or other steam generators), a generator (or other driven machines), a condenser, a heater, a pump, etc., and work in coordination together, after entering the steam turbine, the steam from the boiler (or other steam generators) passes through a series of nozzles and rotating blades arranged annularly, and the heat energy of the steam is converted into the mechanical energy of the rotation of a steam turbine rotor, steam is converted in different ways in a steam turbine to form the steam turbine with different working principles, an impeller is an important component in the steam turbine, and the impeller not only refers to a wheel disc provided with movable blades and is a component of an impulse steam turbine rotor, but also refers to a general name of the wheel disc and the movable blades arranged on the wheel disc.
Traditional impeller and the moving blade that is used for the steam turbine pass through welded fastening, and the angle of welding back blade is not convenient for adjust, and the practicality is poor, and the blade is not in suitable angle, influences work efficiency easily, and inconvenient dismantlement maintenance or change of blade when damaging simultaneously wastes time and energy.
Therefore, it is necessary to provide an impeller for a steam turbine to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide an angle of easy operation, blade is convenient for adjust, is favorable to ensureing work efficiency, blade convenient to detach and installation, convenient maintenance or the impeller for steam turbine of changing simultaneously.
In order to solve the technical problem, the utility model provides an impeller for steam turbine, include: a rotating shaft; the rotating wheel is fixedly sleeved on the rotating shaft; the blades are rotatably arranged on the rotating wheel and are distributed annularly; a plurality of adjustment mechanism, it is a plurality of adjustment mechanism all sets up on the runner, just adjustment mechanism includes spliced pole and mounting groove, spliced pole fixed mounting correspond on the blade, the mounting groove is seted up on the runner, the mounting groove with spliced pole looks adaptation.
Preferably, adjustment mechanism still includes the dwang, the dwang rotates to be installed on the inner wall of mounting groove, the dwang with spliced pole fixed connection, fixed mounting has the gear on the dwang, slidable mounting has the rack in the mounting groove, the rack with the gear meshes mutually.
Preferably, a connecting cavity is formed in the inner wall of one side of the mounting groove, one side of the rack extends to the connecting cavity and is fixedly provided with a first mounting block, the first mounting block is rotatably provided with a hinged rod, the connecting cavity is slidably provided with a first threaded rod, the bottom of the first threaded rod is fixedly provided with a second mounting block, and one end of the hinged rod is rotatably connected with the second mounting block.
Preferably, a rotating hole is formed in the inner wall of the connecting cavity, a nut sleeve is rotatably mounted in the rotating hole and is in threaded connection with the first threaded rod, and the top end of the nut sleeve extends to the outside of the rotating hole and is fixedly provided with a hand wheel.
Preferably, a first limit groove is formed in the inner wall of the bottom of the connecting cavity, a first limit rod is fixedly mounted on the rack, and the first limit rod is connected with the inner wall of the first limit groove in a sliding mode.
Preferably, a second limiting groove is formed in the inner wall of one side of the connecting cavity, a second limiting rod is fixedly mounted on one side of the second mounting block, and the second limiting rod is connected with the inner wall of the second limiting groove in a sliding mode.
Preferably, an assembly groove is formed in the inner wall of one side of the installation groove, and the rack is movably connected with the inner wall of the assembly groove.
Preferably, fixed mounting has a fixed block on the blade, the constant head tank has been seted up to the bottom of fixed block, the top of spliced pole extends to outside the mounting groove and with the inner wall swing joint of constant head tank.
Preferably, four clamping grooves are symmetrically formed in the connecting column, four second threaded rods are rotatably mounted on the fixing block, and the second threaded rods are movably connected with the inner walls of the corresponding clamping grooves.
Compared with the prior art, the utility model provides an impeller for steam turbine has following beneficial effect:
the utility model provides an impeller for steam turbine, the fixed cover of runner is established in the pivot, a plurality of blades all rotate and install on the runner, spliced pole fixed mounting is in corresponding on the blade, the dwang with spliced pole fixed connection, fixed mounting has the gear on the dwang, the rack with the gear meshes mutually, behind the installation blade, can adjust, improve the practicality, be favorable to improving work efficiency the angle of blade as required.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of an impeller for a steam turbine according to the present invention;
FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;
FIG. 3 is a side view of the structure of FIG. 1;
FIG. 4 is a schematic view of a second embodiment of an impeller for a steam turbine provided by the present invention;
FIG. 5 is an enlarged schematic view of portion B shown in FIG. 4;
fig. 6 is a schematic top cross-sectional structure view of the fixing block in fig. 4.
Reference numbers in the figures: 1. a rotating shaft; 2. a rotating wheel; 3. a blade; 4. an adjustment mechanism; 401. connecting columns; 402. mounting grooves; 403. rotating the rod; 404. a gear; 405. a rack; 406. a connecting cavity; 407. a first mounting block; 408. a hinged lever; 409. a first threaded rod; 410. a second mounting block; 411. a nut sleeve; 5. a fixed block; 6. positioning a groove; 7. a card slot; 8. a second threaded rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
First embodiment
Referring to fig. 1-3 in combination, in a first embodiment of the present invention, an impeller for a steam turbine includes: a rotating shaft 1; the rotating wheel 2 is fixedly sleeved on the rotating shaft 1; the blades 3 are all rotatably arranged on the rotating wheel 2, and the blades 3 are distributed annularly; a plurality of adjustment mechanism 4, it is a plurality of adjustment mechanism 4 all sets up on runner 2, just adjustment mechanism 4 includes spliced pole 401 and mounting groove 402, spliced pole 401 fixed mounting correspond on the blade 3, mounting groove 402 is seted up on runner 2, mounting groove 402 with spliced pole 401 looks adaptation.
Seted up on one side inner wall of mounting groove 402 and connected chamber 406, one side of rack 405 extends to connect in the chamber 406 and fixed mounting has first installation piece 407, it has articulated rod 408 to rotate on the first installation piece 407, it has first threaded rod 409 to connect chamber 406 slidable mounting, the bottom fixed mounting of first threaded rod 409 has second installation piece 410, the one end of articulated rod 408 with second installation piece 410 rotates and is connected.
A rotating hole is formed in the inner wall of the connecting cavity 406, a nut sleeve 411 is rotatably mounted in the rotating hole, the nut sleeve 411 is in threaded connection with the first threaded rod 409, and the top end of the nut sleeve 411 extends out of the rotating hole and is fixedly provided with a hand wheel.
A first limit groove is formed in the inner wall of the bottom of the connecting cavity 406, a first limit rod is fixedly mounted on the rack 405, and the first limit rod is connected with the inner wall of the first limit groove in a sliding mode.
A second limiting groove is formed in the inner wall of one side of the connecting cavity 406, a second limiting rod is fixedly mounted on one side of the second mounting block 410, and the second limiting rod is connected with the inner wall of the second limiting groove in a sliding mode.
An assembly groove is formed in the inner wall of one side of the installation groove 402, and the rack 405 is movably connected with the inner wall of the assembly groove.
The utility model provides a theory of operation for impeller of steam turbine as follows:
when needing to adjust the angle of blade 3, the hand wheel rotates, the hand wheel drives nut cover 411 and rotates, nut cover 411 drives first threaded rod 409 downstream, first threaded rod 409 drives second installation piece 410 downstream, second installation piece 410 drives hinge rod 408 motion, hinge rod 408 promotes first installation piece 407 motion, first installation piece 407 drives rack 405 horizontal motion, rack 405 drives gear 404 and rotates, gear 404 drives dwang 403 and rotates, dwang 403 drives spliced pole 401 and rotates, spliced pole 401 drives blade 3 and rotates, thereby finely tune the angle to blade 3, make blade 3 be in suitable angle, be favorable to improving work efficiency, and the practicality is high.
Compared with the prior art, the utility model provides an impeller for steam turbine has following beneficial effect:
the utility model provides an impeller for steam turbine, 2 fixed sleeves of runner are established in pivot 1 is last, and a plurality of blades 3 all rotate and install on runner 2, spliced pole 401 fixed mounting corresponds on the blade 3, dwang 403 with spliced pole 401 fixed connection, fixed mounting has gear 404 on dwang 403, rack 405 with gear 404 meshes mutually, behind installation blade 3, can adjust the angle of blade 3 as required, improve the practicality, be favorable to improving work efficiency.
Second embodiment:
based on the impeller for the steam turbine provided in the first embodiment of the present application, a second embodiment of the present application proposes another impeller for the steam turbine. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 4-6, the impeller for the steam turbine further includes a fixing block 5, the fixing block 5 is fixedly mounted on the corresponding blade 3, a positioning groove 6 is formed at the bottom of the fixing block 5, and the top end of the connecting column 401 extends out of the mounting groove 402 and is movably connected to the inner wall of the positioning groove 6.
Four draw-in grooves 7 have been seted up to the symmetry on the spliced pole 401, rotate on the fixed block 5 and install four second threaded rods 8, second threaded rod 8 with correspond the inner wall swing joint of draw-in groove 7.
Use for a long time, when blade 3 damaged, rotate second threaded rod 8 for four second threaded rods 8 shift out draw-in groove 7, alright this moment in order to take off fixed block 5 on by spliced pole 401, thereby convenient blade 3 with the damage dismantles, convenient maintenance or change, easy operation, labour saving and time saving, simple to operate, fixed firm simultaneously.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (9)
1. An impeller for a steam turbine, comprising:
a rotating shaft;
the rotating wheel is fixedly sleeved on the rotating shaft;
the blades are rotatably arranged on the rotating wheel and are distributed annularly;
a plurality of adjustment mechanism, it is a plurality of adjustment mechanism all sets up on the runner, just adjustment mechanism includes spliced pole and mounting groove, spliced pole fixed mounting correspond on the blade, the mounting groove is seted up on the runner, the mounting groove with spliced pole looks adaptation.
2. The impeller for the steam turbine according to claim 1, wherein the adjusting mechanism further comprises a rotating rod, the rotating rod is rotatably installed on the inner wall of the installation groove, the rotating rod is fixedly connected with the connecting column, a gear is fixedly installed on the rotating rod, a rack is slidably installed in the installation groove, and the rack is meshed with the gear.
3. The impeller for the steam turbine as claimed in claim 2, wherein a connecting cavity is formed in an inner wall of one side of the mounting groove, one side of the rack extends into the connecting cavity and is fixedly provided with a first mounting block, a hinge rod is rotatably mounted on the first mounting block, a first threaded rod is slidably mounted in the connecting cavity, a second mounting block is fixedly mounted at the bottom end of the first threaded rod, and one end of the hinge rod is rotatably connected with the second mounting block.
4. The impeller for the steam turbine as claimed in claim 3, wherein a rotation hole is formed on an inner wall of the connection cavity, a nut sleeve is rotatably installed in the rotation hole, the nut sleeve is in threaded connection with the first threaded rod, and a top end of the nut sleeve extends out of the rotation hole and is fixedly provided with a hand wheel.
5. The impeller for the steam turbine according to claim 3, wherein a first limit groove is formed on the inner wall of the bottom of the connecting cavity, a first limit rod is fixedly mounted on the rack, and the first limit rod is slidably connected with the inner wall of the first limit groove.
6. The impeller for the steam turbine as claimed in claim 3, wherein a second limiting groove is formed on an inner wall of one side of the connecting cavity, a second limiting rod is fixedly mounted on one side of the second mounting block, and the second limiting rod is slidably connected with an inner wall of the second limiting groove.
7. The impeller for the steam turbine according to claim 2, wherein an assembly groove is formed on an inner wall of one side of the installation groove, and the rack is movably connected with the inner wall of the assembly groove.
8. The impeller for the steam turbine as claimed in claim 1, wherein a fixed block is fixedly installed on the blade, a positioning groove is formed at the bottom of the fixed block, and the top end of the connecting column extends out of the installation groove and is movably connected with the inner wall of the positioning groove.
9. The impeller for the steam turbine as claimed in claim 8, wherein the connecting column is symmetrically provided with four clamping grooves, the fixing block is rotatably provided with four second threaded rods, and the second threaded rods are movably connected with inner walls of the corresponding clamping grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022432043.0U CN213684255U (en) | 2020-10-28 | 2020-10-28 | Impeller for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022432043.0U CN213684255U (en) | 2020-10-28 | 2020-10-28 | Impeller for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213684255U true CN213684255U (en) | 2021-07-13 |
Family
ID=76761826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022432043.0U Active CN213684255U (en) | 2020-10-28 | 2020-10-28 | Impeller for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213684255U (en) |
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2020
- 2020-10-28 CN CN202022432043.0U patent/CN213684255U/en active Active
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