CN211819517U - Arc-shaped blade of steam turbine - Google Patents
Arc-shaped blade of steam turbine Download PDFInfo
- Publication number
- CN211819517U CN211819517U CN201922269449.9U CN201922269449U CN211819517U CN 211819517 U CN211819517 U CN 211819517U CN 201922269449 U CN201922269449 U CN 201922269449U CN 211819517 U CN211819517 U CN 211819517U
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- blade
- arc
- fixedly connected
- steam turbine
- shaped
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Abstract
The utility model discloses an arc blade of steam turbine, including fixing base and blade body, the outer wall of fixing base encircles the spacing arch of fixedly connected with, and the lateral wall fixedly connected with stopper of fixing base, the outer wall of fixing base encircles and is provided with the blade body, the upper surface of blade body is the fixedly connected with arch of linear equidistance, and the lateral wall fixedly connected with blade fixing base of blade body, the lateral wall fixedly connected with U-shaped fixation clamp of blade fixing base, the inside card of stopper has second arc mount, one side of second arc mount is provided with first arc mount, the second screw hole has all been seted up to the both sides of first arc mount, first screw hole has all been seted up to the both sides of second arc mount. The utility model discloses in through set up the guiding gutter on the blade body and be linear equidistance fixedly connected with protruding to reduce the frictional force that the blade produced in the course of the work, prolong the life of blade.
Description
Technical Field
The utility model relates to a blade technical field especially relates to an arc blade of steam turbine.
Background
The steam turbine is also called as steam turbine engine, and is a rotary steam power equipment, and the high-temperature high-pressure steam is passed through fixed nozzle, becomes accelerated air flow, and is sprayed on the blade to make the rotor equipped with blade row rotate, at the same time, it can do work for exterior. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.
The existing turbine blade is easy to wear under long-time use conditions, and the blade is inconvenient to replace by a user after being worn.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an arc-shaped blade of a steam turbine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an arc-shaped blade of a steam turbine comprises a fixed seat and a blade body, wherein the outer wall of the fixed seat is fixedly connected with a limiting bulge in a surrounding manner, the side wall of the fixed seat is fixedly connected with a limiting block, the outer wall of the fixed seat is provided with the blade body in a surrounding manner, the upper surface of the blade body is fixedly connected with a bulge with linear equal distance, the side wall of the blade body is fixedly connected with a blade fixed seat, the side wall of the blade fixed seat is fixedly connected with a U-shaped fixed clamp, a second arc-shaped fixed frame is clamped inside the limiting block, one side of the second arc-shaped fixed frame is provided with a first arc-shaped fixed frame, the two sides of the first arc-shaped fixed frame are respectively provided with a second threaded hole, the two sides of the second arc-shaped fixed frame are respectively provided with a first threaded hole, one, the U-shaped fixing clamp is clamped outside the second arc-shaped fixing frame in a surrounding mode.
Preferably, the second arc-shaped fixing frame and the U-shaped fixing clamp are in interference fit.
Preferably, the inner diameters of the first arc-shaped fixing frame and the second arc-shaped fixing frame are equal to the outer diameter of the fixing seat.
Preferably, the number of the limiting protrusions is 6, and the space between every two adjacent limiting protrusions is in clearance fit with the blade fixing seat.
Preferably, the first threaded hole and the second threaded hole have the same inner diameter, and the first threaded hole and the second threaded hole are rotatably connected through a bolt.
Preferably, the blade body is a member made of an aluminum alloy.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in through set up the guiding gutter on the blade body and be linear equidistance fixedly connected with protruding to reduce the frictional force that the blade produced in the course of the work, prolong the life of blade.
2. The utility model discloses in with the card of U-shaped fixation clamp equidistance on first arc mount and second arc mount in proper order through the user, then with first arc mount and second arc mount card in the inside of stopper, adjust the position of blade fixing base, make the blade fixing base insert in the clearance between two adjacent spacing archs, then insert first screw hole and second threaded hole with the bolt to the person of facilitating the use changes and maintains the blade.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the U-shaped fixing clip of the present invention;
FIG. 3 is a schematic structural view of a first arc-shaped fixing frame of the present invention;
fig. 4 is the schematic diagram of the structure of the limiting block of the present invention.
In the figure: 1. a fixed seat; 2. a blade body; 3. a protrusion; 4. a diversion trench; 5. a blade fixing seat; 6. a first arc-shaped fixing frame; 7. a limiting bulge; 8. a second arc-shaped fixing frame; 9. a U-shaped fixing clip; 10. a first threaded hole; 11. a bolt; 12. a second threaded hole; 13. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, an arc blade of a steam turbine comprises a fixed seat 1 and a blade body 2, wherein the outer wall of the fixed seat 1 is fixedly connected with a limiting protrusion 7 around, the side wall of the fixed seat 1 is fixedly connected with a limiting block 13, the outer wall of the fixed seat 1 is provided with the blade body 2 around, the upper surface of the blade body 2 is fixedly connected with protrusions 3 with linear equal distance, the side wall of the blade body 2 is fixedly connected with a blade fixed seat 5, the side wall of the blade fixed seat 5 is fixedly connected with a U-shaped fixing clamp 9, the inside of the limiting block 13 is clamped with a second arc-shaped fixing frame 8, one side of the second arc-shaped fixing frame 8 is provided with a first arc-shaped fixing frame 6, the two sides of the first arc-shaped fixing frame 6 are both provided with second threaded holes 12, the two sides of the second arc-shaped fixing frame 8 are both provided with first threaded holes 10, one, the U-shaped fixing clip 9 is clamped around the outside of the second arc-shaped fixing frame 8.
In order to avoid the U-shaped fixing clip 9 from being separated from the second arc-shaped fixing frame 8, the second arc-shaped fixing frame 8 and the U-shaped fixing clip 9 are in interference fit.
In order to make first arc mount 6 and second arc mount 8 and fixing base 1 cooperation, the internal diameter of first arc mount 6 and second arc mount 8 all equals with the external diameter of fixing base 1.
In order to enable a user to install and fix the blades, the number of the limiting bulges 7 is 6, and the space between every two adjacent limiting bulges 7 is in clearance fit with the blade fixing seat 5.
In order to facilitate the user to mount and fix the blade, the first threaded hole 10 and the second threaded hole 12 have the same inner diameter, and the first threaded hole 10 and the second threaded hole 12 are rotatably connected by a bolt 11.
In order to reduce the weight of the blade itself, the blade body 2 is a member made of an aluminum alloy.
The working principle is as follows: the guide grooves 4 and the linear equidistant fixed connection protrusions 3 are formed in the blade body 2, so that the friction force generated by the blade in the working process is reduced, and the service life of the blade is prolonged; the U-shaped fixing clamps 9 are clamped on the first arc-shaped fixing frame 6 and the second arc-shaped fixing frame 9 at equal intervals in sequence through a user, then the first arc-shaped fixing frame 6 and the second arc-shaped fixing frame 8 are clamped inside the limiting block 13, the position of the blade fixing seat 5 is adjusted, the blade fixing seat 5 is made to be inserted into a gap between the two adjacent limiting bulges 7, then the bolt 11 is inserted into the first threaded hole 10 and the second threaded hole 12, and therefore the user can replace and maintain the blades conveniently.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The arc-shaped blade of the steam turbine comprises a fixing seat (1) and a blade body (2) and is characterized in that a limiting bulge (7) is fixedly connected to the outer wall of the fixing seat (1) in a surrounding mode, a limiting block (13) is fixedly connected to the side wall of the fixing seat (1), the blade body (2) is arranged on the outer wall of the fixing seat (1) in a surrounding mode, the upper surface of the blade body (2) is provided with the bulges (3) which are fixedly connected in a linear equidistant mode, the side wall of the blade body (2) is fixedly connected with a blade fixing seat (5), a U-shaped fixing clamp (9) is fixedly connected to the side wall of the blade fixing seat (5), a second arc-shaped fixing frame (8) is clamped inside the limiting block (13), a first arc-shaped fixing frame (6) is arranged on one side of the second arc-shaped fixing frame (8), and second, first screw hole (10) have all been seted up to the both sides of second arc mount (8), guiding gutter (4) have been seted up to one side of arch (3), the inside rotation of first screw hole (10) and second screw hole (12) is connected with bolt (11), U-shaped fixation clamp (9) encircle the outside of card at second arc mount (8).
2. The curved blade of a steam turbine according to claim 1, characterized in that the second curved holder (8) and the U-shaped holder (9) are an interference fit.
3. The curved blade of a steam turbine according to claim 1, characterized in that the first curved holder (6) and the second curved holder (8) have an inner diameter which is equal to the outer diameter of the holder (1).
4. The cambered blade of a steam turbine according to claim 1, wherein there are 6 limiting protrusions (7), and the space between two adjacent limiting protrusions (7) is in clearance fit with the blade holder (5).
5. Cambered blade for a steam turbine according to claim 1, characterized in that the first threaded hole (10) and the second threaded hole (12) have the same internal diameter, and the first threaded hole (10) and the second threaded hole (12) are rotatably connected by means of a bolt (11).
6. The curved blade for a steam turbine according to claim 1, wherein said blade body (2) is a member of an aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922269449.9U CN211819517U (en) | 2019-12-17 | 2019-12-17 | Arc-shaped blade of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922269449.9U CN211819517U (en) | 2019-12-17 | 2019-12-17 | Arc-shaped blade of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211819517U true CN211819517U (en) | 2020-10-30 |
Family
ID=73140186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922269449.9U Active CN211819517U (en) | 2019-12-17 | 2019-12-17 | Arc-shaped blade of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211819517U (en) |
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2019
- 2019-12-17 CN CN201922269449.9U patent/CN211819517U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201216 Address after: No.33, Beibinhe West Road, Anning District, Lanzhou City, Gansu Province Patentee after: Huaneng Gansu Energy Development Co.,Ltd. Patentee after: JINGTAI POWER PLANT OF DATANG GANSU POWER GENERATION Co.,Ltd. Address before: 730400 Jingtai County, Baiyin City, Gansu Province Patentee before: JINGTAI POWER PLANT OF DATANG GANSU POWER GENERATION Co.,Ltd. |