CN209324431U - Turbine spindle - Google Patents
Turbine spindle Download PDFInfo
- Publication number
- CN209324431U CN209324431U CN201822064149.2U CN201822064149U CN209324431U CN 209324431 U CN209324431 U CN 209324431U CN 201822064149 U CN201822064149 U CN 201822064149U CN 209324431 U CN209324431 U CN 209324431U
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- ring body
- groove
- annular groove
- outer ring
- slot
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Abstract
The utility model discloses a kind of turbine spindles, including ontology, this body sidewall is equipped with outer groove, outer ring body is equipped in outer groove, outer groove, outer ring body and ontology three coaxial arrangement, outer ring body is equipped with impeller slot, and outer ring body forms multiple cricoid plug sockets of fan after several cross the plane cutting of center axis thereof, and each plug socket is fixedly mounted in outer groove.The utility model is by being arranged impeller slot on outer ring body, and then it is convenient for the processing of impeller slot, and the outer ring body is cleavable at least two plug sockets, then the plug socket is fixedly mounted in outer groove, and then corresponding plug socket is only needed to change when impeller slot is worn, the service life for not only extending main shaft, also reduces maintenance cost.
Description
Technical field
The utility model relates to steam turbine technology fields, are a kind of turbine spindles.
Background technique
Steam turbine is also referred to as steam turbine engine, is a kind of rotary steam power device, and high temperature and high pressure steam passes through solid
Nozzle is determined as being ejected on blade after the air-flow accelerated, makes the main shaft rotation equipped with blade row, while external work done.Steam turbine
It is the capital equipment of modern thermal power plant, is also used for metallurgical industry, chemical industry, in ship's powerplant.Steam turbine at present
It is typically all to use directly to process impeller slot on main shaft, but directly process impeller slot ratio on main shaft when blade is installed
It is cumbersome, and main shaft is needed replacing if wearing occurs in impeller slot when in use, to not only result in the processing of impeller slot
Difficulty is big, also shortens the service life of main shaft.
Summary of the invention
The utility model provides a kind of turbine spindle, overcomes the defects of the prior art, and can effectively solve
The problem that difficulty of processing existing for existing turbine spindle is big, service life is low.
The technical solution of the utility model is realized by following measures: a kind of turbine spindle, including ontology, this
Body sidewall is equipped with outer groove, and outer ring body, outer groove, outer ring body and ontology three coaxial arrangement, outer ring body are equipped in outer groove
It is equipped with impeller slot, outer ring body forms multiple cricoid plug sockets of fan after several cross the plane cutting of center axis thereof, often
A plug socket is fixedly mounted in outer groove.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
Above-mentioned impeller slot may include middle annular groove, left annular groove and right annular groove, and middle annular groove is arranged on outer ring body outer circle wall, left
Annular groove number is at least three, and the left annular groove of described at least three is successively arranged at intervals on from the inside to the outside on middle annular groove left side wall,
Right annular groove is equipped on the middle annular groove right side wall of corresponding each left ring groove position.
Above-mentioned outer ring body may include housing, Zuo Huanti and right ring body, and middle annular groove is set to and puts on outside, corresponding each left annular groove position
It is equipped with the left mounting groove of cyclic structure on the middle annular groove left side wall set, is mounted on and its clearance fit in each left mounting groove
Left ring body, left annular groove is arranged in left ring body, is equipped with cyclic annular knot on the middle annular groove right side wall of corresponding each right ring groove position
The right mounting groove of structure, right ring body is mounted in each right mounting groove, and right annular groove is arranged in right ring body.
The number of above-mentioned left ring body and right ring body can be three, and each right ring body is by left ring body through left and right mirror symmetry
It obtains, wherein the left ring body in inside and left outer ring body shaft section are T shape, intermediate left ring body shaft section is abnormity, the abnormity packet
Swallow-tail form and rectangle are included, swallow-tail form the right and the rectangle left side are total to side.
Gap can be equipped between above-mentioned outer ring body sidewall and outer ring groove sidewall, which is 0.03 μm to 0.05 μm.
Above-mentioned plug socket can be fixedly mounted in outer groove by screw, and the impeller groove bottom wall of corresponding screw position is equipped with
Counterbore, outer ring groove bottom wall are equipped with threaded hole, and the nut portions seat of screw is in counterbore.
The utility model is convenient for the processing of impeller slot, and the outer ring body by being arranged impeller slot on outer ring body
It is cleavable that then the plug socket is fixedly mounted in outer groove at least two plug sockets, and then when impeller slot occurs
Corresponding plug socket is only needed to change when abrasion, the service life for not only extending main shaft also reduces maintenance cost.
Detailed description of the invention
Attached drawing 1 is the schematic view of the front view of the best embodiment of the utility model.
Attached drawing 2 is the enlarged structure schematic diagram in attached drawing 1 at A.
Coding in attached drawing is respectively as follows: 1 for ontology, and 2 be outer groove, and 3 be plug socket, and 4 be housing, and 5 be Zuo Huanti, and 6 are
Right ring body, 7 be middle annular groove, and 8 be left mounting groove, and 9 be right mounting groove, and 10 be left annular groove, and 11 be right annular groove, and 12 be screw, and 13 are
Counterbore, 14 be threaded hole.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 2 is described, such as: front, rear, top, and bottom, left and right positional relationship be according to Figure of description
Butut direction determine.
The utility model is further described below with reference to examples and drawings:
As shown in attached drawing 1 to 2, a kind of turbine spindle, including ontology 1,1 side wall of ontology are equipped with outer groove 2, outer groove
Outer ring body is equipped in 2, outer groove 2, outer ring body and 1 three of ontology coaxial arrangement, outer ring body are equipped with impeller slot, if outer ring body passes through
Multiple cricoid plug sockets 3 of fan are formed after dry a plane cutting for crossing center axis thereof, each plug socket 3 is fixedly mounted outside
In annular groove 2.According to demand, the structure of impeller slot is according to institute's blade and blade root to be mounted structure setting, so that blade and blade
Root can be closely plugged into impeller slot, and in this present embodiment, each plug socket 3 all is the same size, the number of plug socket 3
Mesh is identical with the number of blade in impeller, and each blade and blade root depth and the identical and then adjacent plug socket 3 of plug socket 3 are pacified
Two blade and blade roots when being fitted together thereon are also inconsistent, and in installation process, a plug socket 3 is first installed to outer groove 2
It is interior, then blade and blade root is plugged into the impeller slot on the plug socket 3, is then installed to next plug socket 3
In outer groove 2 and one end of the plug socket 3 and a upper plug socket 3 fit closely, and so on, until installing second from the bottom
Blade is first installed in the plug socket 3 by a plug socket 3 when installing the last one plug socket 3, then consolidates the plug socket 3
Dingan County is attached to the installation process that entire impeller is just completed in outer groove 2, since impeller slot is arranged on outer ring body, and then is convenient for
Processing, and outer ring body forms multiple plug sockets 3 after cutting, and then when the impeller slot when some region is worn, and only need are more
Changing corresponding plug socket 3 can, it is not necessary to changing whole main shaft, extend the service life of main shaft, reduce the maintenance of steam turbine
Cost.
Above-mentioned turbine spindle can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 2, impeller slot includes middle annular groove 7, left annular groove 10 and right annular groove 11, and middle annular groove 7 is arranged in outer ring body
On outer circle wall, left 10 number of annular groove is at least three, the successively interval setting from the inside to the outside of the left annular groove 10 of described at least three
On middle 7 left side wall of annular groove, right annular groove 11 is equipped on 7 right side wall of middle annular groove of corresponding each left 10 position of annular groove.In
The setting of annular groove 7, left annular groove 10 and right annular groove 11 enables main shaft to be suitable for blade root or so the same number of blade of convex shoulder
Installation.
As shown in Fig. 2, the outer ring body includes housing 4, Zuo Huanti 5 and right ring body 6, and middle annular groove 7 is set on housing 4,
The left mounting groove 8 of cyclic structure, each left mounting groove 8 are equipped on 7 left side wall of middle annular groove of corresponding each left 10 position of annular groove
It is inside mounted on the left ring body 5 with its clearance fit, left annular groove 10 is arranged in left ring body 5, corresponding each right 11 position of annular groove
7 right side wall of middle annular groove on be equipped with the right mounting groove 9 of cyclic structure, be mounted on right ring body 6 in each right mounting groove 9, it is right
Annular groove 11 is arranged in right ring body 6.It is distributed in due to impeller slot on different components, and then is more conducive to process, additionally, due to a left side
There are gaps between 8 side wall of ring body 5 and left mounting groove, can be mentioned in left 5 expanded by heating Shi Weiqi of ring body by the setting in gap
For an expansion space, extruding force of the left ring body 5 in expanded by heating between 8 side wall of left mounting groove is reduced, that is, is reduced left
The damage that ring body 5 and housing 4 are subject to similarly is arranged gap between 9 side wall of right ring body 6 and right mounting groove, can reduce right ring
The damage that body 6 and housing 4 are subject to, extends the service life of entire outer ring body, reduces maintenance cost.
As shown in Fig. 2, the number of the left ring body 5 and right ring body 6 is three, and each right ring body 6 is by left ring body 5
It is obtained through left and right mirror symmetry, wherein the left ring body 5 in inside and 5 shaft section of left outer ring body are T shape, intermediate left 5 shaft section of ring body
For abnormity, the abnormity includes swallow-tail form and rectangle, and swallow-tail form the right and the rectangle left side are total to side.Due to three left ring bodies 5
Structure it is different and then three is different to the extruding force direction of housing 4, similarly extruding force direction of three right ring bodies 6 to housing 4
There is the case where stress concentration to prevent, further extends the service life of housing 4 in difference on housing 4.
As shown in attached drawing 1 to 2, between 2 side wall of outer ring body sidewall and outer groove be equipped with gap, the gap width be 0.03 μm extremely
0.05μm.Must be arranged by gap width can provide an expansion space in outer ring body expanded by heating for it, reduce outer ring
Extruding force of the body in expanded by heating between 2 side wall of outer groove, so that the damage that outer ring body and ontology 1 are subject to is reduced, into
One step extends the service life of main shaft.
As shown in attached drawing 1 to 2, plug socket 3 can be fixedly mounted in outer groove 2 by screw 12, corresponding 12 position of screw
Impeller groove bottom wall be equipped with counterbore 13,2 bottom wall of outer groove be equipped with threaded hole 14, the nut portions seat of screw 12 is in counterbore 13
It is interior.Plug socket 3 is fixedly mounted in outer groove 2 by screw 12, not only realizes the fixed peace between plug socket 3 and ontology 1
Dress, and since the setting of counterbore 13 avoids the nut portions and the contact of blade and blade root of screw 12, thereby reduce blade and blade
The abrasion that root is subject to.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (7)
1. a kind of turbine spindle, it is characterised in that including ontology, this body sidewall is equipped with outer groove, is equipped with outer ring in outer groove
Body, outer groove, outer ring body and ontology three coaxial arrangement, outer ring body are equipped with impeller slot, and outer ring body crosses its center through several
Multiple cricoid plug sockets of fan are formed after the plane cutting of axis, each plug socket is fixedly mounted in outer groove.
2. turbine spindle according to claim 1, it is characterised in that impeller slot includes middle annular groove, left annular groove and right ring
Slot, middle annular groove are arranged on outer ring body outer circle wall, and left annular groove number is at least three, and the left annular groove of described at least three is by interior
To being successively arranged at intervals on middle annular groove left side wall outside, right ring is equipped on the middle annular groove right side wall of corresponding each left ring groove position
Slot.
3. turbine spindle according to claim 2, it is characterised in that the outer ring body includes housing, Zuo Huanti and right ring
Body, middle annular groove are set to and put on outside, and the left installation of cyclic structure is equipped on the middle annular groove left side wall of corresponding each left ring groove position
Slot is mounted on the left ring body with its clearance fit in each left mounting groove, and left annular groove is arranged in left ring body, corresponding each right side
It is equipped with the right mounting groove of cyclic structure on the middle annular groove right side wall of ring groove position, is mounted on right ring in each right mounting groove
Body, right annular groove are arranged in right ring body.
4. turbine spindle according to claim 3, it is characterised in that the number of the left ring body and right ring body is three
A, each right ring body is obtained by left ring body through left and right mirror symmetry, wherein the left ring body in inside and left outer ring body shaft section are T
Shape, for intermediate left ring body shaft section to be special-shaped, the abnormity includes swallow-tail form and rectangle, is total on the right of swallow-tail form with the rectangle left side
Side.
5. turbine spindle according to claim 1 or 2 or 3 or 4, it is characterised in that outer ring body sidewall and outer ring groove sidewall
Between be equipped with gap, the gap width be 0.03 μm to 0.05 μm.
6. turbine spindle according to claim 1 or 2 or 3 or 4, it is characterised in that plug socket can pacify by the way that screw is fixed
In outer groove, the impeller groove bottom wall of corresponding screw position is equipped with counterbore, and outer ring groove bottom wall is equipped with threaded hole, screw
Nut portions seat is in counterbore.
7. turbine spindle according to claim 5, it is characterised in that plug socket can be fixedly mounted on outer ring by screw
In slot, the impeller groove bottom wall of corresponding screw position is equipped with counterbore, and outer ring groove bottom wall is equipped with threaded hole, the nut portions seat of screw
In in counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064149.2U CN209324431U (en) | 2018-12-10 | 2018-12-10 | Turbine spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064149.2U CN209324431U (en) | 2018-12-10 | 2018-12-10 | Turbine spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324431U true CN209324431U (en) | 2019-08-30 |
Family
ID=67726064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822064149.2U Active CN209324431U (en) | 2018-12-10 | 2018-12-10 | Turbine spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324431U (en) |
-
2018
- 2018-12-10 CN CN201822064149.2U patent/CN209324431U/en active Active
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