CN203420932U - Integrally-cast type axial flow blade structure - Google Patents
Integrally-cast type axial flow blade structure Download PDFInfo
- Publication number
- CN203420932U CN203420932U CN201320445465.9U CN201320445465U CN203420932U CN 203420932 U CN203420932 U CN 203420932U CN 201320445465 U CN201320445465 U CN 201320445465U CN 203420932 U CN203420932 U CN 203420932U
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- China
- Prior art keywords
- main shaft
- blade
- movable vane
- blade structure
- integrated type
- Prior art date
- 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
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- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000005242 forging Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005495 investment casting Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an integrally-cast type axial flow blade structure which comprises a main shaft. At least one integrated movable blade is connected to the main shaft in a sleeved mode and is fixed on the main shaft through a shaft sleeve. The shaft sleeve is provided with pin holes for installing pins. According to the integrally-cast type axial flow blade structure, the blade and a hub are casted in an integrated mode through the precise casting technology, so that an integrated movable blade is formed. After the integrated movable blade is casted and formed, resource waste is greatly reduced, processing periods are shortened, installation is convenient, and the service life is long.
Description
Technical field
The utility model relates to axial flow decompressor and compressor, particularly the one piece casting type axial blade structure of a kind of axial flow decompressor and compressor.
Background technique
The field extensive application such as axial flow expansion turbine, Axial Flow Compressor divide at metallurgy, petrochemical industry, sky, high pressure relieving haperacidity.Its rotor core part blade adopts wing blade, blade becomes spatial warping moulding, conventionally after adopting blade profile blade root machining, the processing of main shaft tongue-and-groove in manufacture, be assembled into rotor part, assembling just makes blade root and main shaft tongue-and-groove quality of fit become the weak link of rotor strength like this.For addressing this problem, fluid machinery industry successively adopts the multiple type of blade roots such as fir shape, dove-tail form, wooden fork type, the thick clamp-type of big and heavy stone; For improving quality of fit, some industries have adopted tongue-and-groove broaching, the method for blade root numerical control grinding moulding.This blade root coordinates not only processing difficulties of the blade structure pattern of installing with main shaft tongue-and-groove, and the difficulty of bringing to installation is also very large, especially in a circumferential circle blade, the installation of last two blades needs to install according to final space match grinding, is easy to cause scrapping of blade.The moulding of individual blade generally need can be carried out blade assembling after forging the process sequences such as (open die forging or die forging), quenching with Subsequent tempering, roughing, fine finishing.The wave processing duration is longer, and expense is larger, also causes the waste of resource greatly.
Model utility content
For the existing axial flow expansion turbine in market and compressor blade, add monolithic processing in man-hour, after processing, be installed on main shaft tongue-and-groove, cause the manufacture cycle long, processing cost is large, and the phenomenon of waste resource, and the utility model technology is for this problem, blade and hub are cast into one by precision casting technology, form one-level integrated type movable vane.After integrated type movable vane casting, blade position, only need be by integrated type movable vane wheel hub position endoporus and both ends of the surface processing without carrying out secondary operations again.On main shaft, do not reprocess tongue-and-groove, but be processed into optical axis, by integrated type movable vane hot charging to main shaft and form rotor.
The purpose of this utility model realizes by following technical proposals.
An axial blade structure, comprises main shaft, is at least socketed with an integrated type movable vane on described main shaft, and described integrated type movable vane is fixed on main shaft by axle sleeve, and described axle sleeve is provided with the pin hole that pin is installed.
Further, described integrated type movable vane comprises blade and wheel hub, and wheel hub is socketed on main shaft, and fixes by the pin on axle sleeve.
Further, described axle sleeve and main shaft interference fit.
Further, described pin hole axially arranges along axle sleeve.
The utility model compared with prior art has the following advantages:
1). greatly reduced the wasting of resources.Integrated type movable vane is with respect to individual blade die forging material-saving approximately 10～20%, with respect to individual blade smith forging material-saving approximately 30～50%.
2). shortened the process-cycle.By 60 blades of one group of energy recovery turbine expansion machine rotor, be example, with a machine tool processing, calculate, one of individual blade die forging processing one day, processes and needs 60 days; One of individual blade open die forging processing three days, processes and needs 180 days.And integrated type movable vane casting cycle is only 10～15 days.
3). be convenient to install.Individual blade need to be installed on main shaft one by one, and last several blades need can be installed according to remaining space match grinding blade root.Dress up rear integrity poor, amount of unbalance is larger, needs balancing piece with balancing rotor.
4). long service life.Integrated type movable vane adopts special substance, and Wear-resistant corrosion-resistant strengthens, and increase working life with respect to existing material.
Accompanying drawing explanation
Fig. 1 is that the utility model is implemented structural representation.
In figure: 1, main shaft, 2, pin, 3, integrated type movable vane, 4, axle sleeve.
Embodiment
Below by drawings and Examples, the utility model is described further.
As shown in Figure 1, this one piece casting type axial blade structure, comprise main shaft 1, on main shaft 1, be at least socketed with an integrated type movable vane 3, integrated type movable vane 3 is fixed on main shaft 1 by axle sleeve 4, integrated type movable vane 3 comprises blade and wheel hub, and wheel hub is socketed on main shaft 1, and fixing by the pin 2 on axle sleeve 4.Axle sleeve 4 is provided with the pin hole that pin 2 is installed, and pin hole axially arranges along axle sleeve 4.Wherein, integrated type movable vane 3 and main shaft 1 drive fit, axle sleeve 4 and main shaft 1 interference fit.
During making, main shaft 1 size and integrated type movable vane 3 wheel hub position endoporus, both ends of the surface are worked into final size; To integrated type movable vane 3 heating that heats up, make its endoporus thermal expansion, after interior hole dimension is greater than main shaft 1 size, stop heating, integrated type movable vane 3 is installed on main shaft 1, by interference fit, integrated type movable vane 3 can not moved axially or rotate on main shaft 1; Draw-bore after integrated type movable vane 3 and main shaft 1 are cooled to normal temperature, installs rotation inhibiting pin 2, further guarantees that integrated type movable vane 3 can not rotate on main shaft; By interference fit, axle sleeve 4 is installed.
This process engineering is cast into one by blade and hub by precision casting technology, forms one-level integrated type movable vane.After integrated type movable vane casting, blade position, only need be by integrated type movable vane wheel hub position endoporus and both ends of the surface processing without carrying out secondary operations again.On main shaft, do not reprocess tongue-and-groove, but be processed into optical axis; Blade and hub adopt special substance, by precision casting, blade and hub are cast into one, form one-level integrated type movable vane; Integrated type movable vane hot charging is connected and forms rotor to optical axis and with pin.The usability of this structure and Operational Limits and original structure are in full accord.
Above-described embodiment has provided a narrow example the utility model has been made to detailed description; can not assert that mode of execution of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; all any simple modification of doing according to the utility model Spirit Essence and equivalent structure transformation or modification, all belong to the definite protection domain of claims that the utility model is submitted to.
Claims (4)
1. an one piece casting type axial blade structure, comprise main shaft (1), it is characterized in that, on described main shaft (1), be at least socketed with an integrated type movable vane (3), it is upper that described integrated type movable vane (3) is fixed on main shaft (1) by axle sleeve (4), and described axle sleeve (4) is provided with the pin hole that pin (2) is installed.
2. one piece casting type axial blade structure according to claim 1, is characterized in that, described integrated type movable vane (3) comprises blade and wheel hub, and it is upper that wheel hub is socketed in main shaft (1), and fixing by the pin (2) on axle sleeve (4).
3. one piece casting type axial blade structure according to claim 1, is characterized in that, described axle sleeve (4) and main shaft (1) interference fit.
4. one piece casting type axial blade structure according to claim 1, is characterized in that, described pin hole axially arranges along axle sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445465.9U CN203420932U (en) | 2013-07-24 | 2013-07-24 | Integrally-cast type axial flow blade structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445465.9U CN203420932U (en) | 2013-07-24 | 2013-07-24 | Integrally-cast type axial flow blade structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420932U true CN203420932U (en) | 2014-02-05 |
Family
ID=50020031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320445465.9U Expired - Lifetime CN203420932U (en) | 2013-07-24 | 2013-07-24 | Integrally-cast type axial flow blade structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608075A (en) * | 2019-09-16 | 2019-12-24 | 西安陕鼓动力股份有限公司 | Nitric acid device energy recuperation unit |
-
2013
- 2013-07-24 CN CN201320445465.9U patent/CN203420932U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608075A (en) * | 2019-09-16 | 2019-12-24 | 西安陕鼓动力股份有限公司 | Nitric acid device energy recuperation unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Guanglin Inventor after: Zhou Bo Inventor before: Zhou Guanglin Inventor before: Zhou Bo |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
|
| CX01 | Expiry of patent term |