CN2554355Y - Axit-flow compressor stator blade rotaaling ring transmission - Google Patents
Axit-flow compressor stator blade rotaaling ring transmission Download PDFInfo
- Publication number
- CN2554355Y CN2554355Y CN 02265926 CN02265926U CN2554355Y CN 2554355 Y CN2554355 Y CN 2554355Y CN 02265926 CN02265926 CN 02265926 CN 02265926 U CN02265926 U CN 02265926U CN 2554355 Y CN2554355 Y CN 2554355Y
- Authority
- CN
- China
- Prior art keywords
- stator blade
- cursor
- swivel becket
- arm
- rotating
- 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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Abstract
The utility model relates to an axial-flow compressor fixed blade rotating ring transmission device, which consists of a transmission shaft(1), a rocker arm (2) and a rotating arm (6) arranged on the transmission shaft, and a fixed blade (7) positioned on the end part of the rotating arm. The utility model is characterized in that: the transmission device also comprises a rocker arm trolley (3), a rotating ring (4) and a rotating arm trolley (5). The rocker arm trolley in the end part of the rocker arm is arranged in a groove on the upper part of the rotating ring, and the rotating arm trolley in the other end of the rotating arm is placed in a groove evenly distributed around the rotating ring. The utility model is simple and reliable, which has flexible rotating and convenient maintenance.
Description
Technical field
The utility model relates to a kind of axial-flow compressor stator blade swivel becket transmission device.
Technical background
The change of axial-flow compressor (axial-flow blower) stator blade established angle can change the flow of blower fan, and the characteristic line that makes blower fan changes with the change of stator blade established angle.The stator blade established angle that changes axial-flow blower can make the fan operation scope widen, and under small flow, high pressure ratio operating mode, by reducing the established angle of stator blade, the safe operation of can not leaking informaton surge can not occur, energy saving, and remarkable in economical benefits improves.Fixedly the blower fan of stator blade then need leak informaton and could move, otherwise surge can occur.Therefore the rotation of blower fan stator blade established angle control is subjected to user's attention and welcome.The control device for pivoting of existing axial-flow blower stator blade established angle adopts dual mode, and a kind of is directly to drag stator blade, stator blade established angle phase inversions at different levels angle together, device is arranged simpler, use extensivelyr, but this device aerodynamic characteristic is relatively poor relatively, and efficient improves limited.Another kind is to rotate stator blade (by the optimum Match angular turn) by " principle of similarity ", and promptly the corner of stator blades at different levels reduces gradually, makes the angle of attack of movable vane and deviation angle constant before and after stator blade rotates.This mode aerodynamic characteristic is good, the efficient height, but the device that rotates stator blade reduces gradually with the stator blade corner, stator blade corners at different levels reduce after by forward direction gradually, it is inequality that stator blade rotates brachium, and cursor needs lengthening gradually, and cursor length is subjected to the restriction of every column pitch of stator blade or adjacent stator blade pitch and can't arranges, what has the stator blade of big pitch space before only being applicable to blower fan, and what can't be accomplished than the stator blade in fine pith space for the back.
Summary of the invention
The utility model has overcome stator blade slewing gear in the existing axial-flow blower and has rotated the defective that brachium is restricted, can't regulate what stator blade rotational angle of back, a kind of axial-flow compressor stator blade swivel becket transmission device is provided, this device has increased stator blade swivel becket transmission device on the basis of existing technology, can regulate by " principle of similarity " whole stator blades, simple in structure, easy to adjust.
The utility model is achieved in that a kind of axial-flow compressor stator blade swivel becket transmission device, comprise transmission shaft, be loaded on rocking arm, the cursor on the transmission shaft and be loaded on the stator blade of cursor end, it is characterized in that this transmission device also comprises rocker-arm roller, swivel becket and cursor roller, be loaded on rocker-arm roller in the rocking arm end and place the groove on swivel becket top, the cursor roller that is loaded on the cursor the other end places circumferentially uniform groove of swivel becket.
Working principle of the present utility model is that a cover stator blade swivel becket transmission device is housed on cylinder, transmission shaft connects cursor through swivel becket, and then the drive stator blade rotates required angle, stator blade cursor length can be identical or inequality like this, as long as the velocity ratio on the adjusting swivel becket transmission device can be realized the coupling of stator blade corners at different levels, realize that on axial-flow blower stator blade is adjustable.This device is simple and reliable, rotates flexibly, is convenient to arrange, and is easy to maintenance.
Description of drawings
Fig. 1 is the utility model axial-flow compressor stator blade swivel becket transmission device schematic representation, and Fig. 2 is an axial-flow compressor stator blade swivel becket transmission device transmission principle schematic representation.
Among the figure: 1 transmission shaft, 2 rocking arms, 3 rocker-arm rollers, 4 swivel beckets, 5 cursor rollers, 6 cursors, 7 stator blades.
Mode of execution
Referring to Fig. 1, Fig. 2, a kind of axial-flow compressor stator blade swivel becket transmission device, comprise transmission shaft 1, be loaded on rocking arm 2, rocker-arm roller 3, swivel becket 4, cursor roller 5 on the transmission shaft 1, cursor 6 and the stator blade 7 that is loaded on cursor 6 ends, be loaded on rocker-arm roller 3 in rocking arm 2 ends and place the groove on swivel becket 4 tops, the cursor roller 5 that is loaded on cursor 6 the other ends places swivel becket 4 circumferential uniform grooves.The transmission shaft 1 of this device can adopt single shaft or twin shaft, transmission shaft 1 is by axial-flow blower outer driving device controls and driving, transmission shaft 1 drives rocking arm 2 swings of key connecting with it when rotating; rocking arm 2 is stirred swivel becket 4 through rocker-arm roller 3 and rotated around the axial-flow blower cylinder axis; swivel becket 4 drives the cursor roller 5 that is loaded on the band selfaligning ball bearing in its circumferential uniform groove and moves; make cursor 6 swings, rotates thereby cursor 6 drives stator blade 7.The variation of the length of the diameter of the length of rocking arms 2 at different levels, swivel becket 4 and stator blade cursors 6 at different levels on the transmission shaft 1 all can change stator blade velocity ratio at different levels, thereby makes stator blades 7 at different levels change different angles.Therefore, be complementary for making stator blade 7 corners at different levels, the length that cursor 6 length limited system problems can be by adjusting rocking arms 2 at different levels and the diameter of swivel becket 4 are resolved.
Claims (1)
1. axial-flow compressor stator blade swivel becket transmission device, comprise transmission shaft (1), be loaded on rocking arm (2), the cursor (6) on the transmission shaft (1) and be loaded on the stator blade (7) of cursor (6) end, it is characterized in that this transmission device also comprises rocker-arm roller (3), swivel becket (4) and cursor roller (5), be loaded on rocker-arm roller (3) in rocking arm (2) end and place the groove on swivel becket (4) top, the cursor roller (5) that is loaded on cursor (6) the other end places circumferentially uniform groove of swivel becket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265926 CN2554355Y (en) | 2002-07-31 | 2002-07-31 | Axit-flow compressor stator blade rotaaling ring transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265926 CN2554355Y (en) | 2002-07-31 | 2002-07-31 | Axit-flow compressor stator blade rotaaling ring transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554355Y true CN2554355Y (en) | 2003-06-04 |
Family
ID=33731858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02265926 Expired - Lifetime CN2554355Y (en) | 2002-07-31 | 2002-07-31 | Axit-flow compressor stator blade rotaaling ring transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2554355Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301364C (en) * | 2003-07-16 | 2007-02-21 | 沈阳黎明航空发动机(集团)有限责任公司 | High efficiency compressor for gas turbine |
| CN103277339A (en) * | 2013-06-26 | 2013-09-04 | 上海交通大学 | Multistage stationary blade adjusting mechanism of gas compressor including universal-like pairs |
| CN103291377A (en) * | 2013-06-25 | 2013-09-11 | 上海交通大学 | Gas compressor multistage stationary blade rigid adjusting mechanism |
-
2002
- 2002-07-31 CN CN 02265926 patent/CN2554355Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301364C (en) * | 2003-07-16 | 2007-02-21 | 沈阳黎明航空发动机(集团)有限责任公司 | High efficiency compressor for gas turbine |
| CN103291377A (en) * | 2013-06-25 | 2013-09-11 | 上海交通大学 | Gas compressor multistage stationary blade rigid adjusting mechanism |
| CN103277339A (en) * | 2013-06-26 | 2013-09-04 | 上海交通大学 | Multistage stationary blade adjusting mechanism of gas compressor including universal-like pairs |
| CN103277339B (en) * | 2013-06-26 | 2015-12-02 | 上海交通大学 | The multistage stationary blade regulating mechanism of gas compressor containing the universal pair of class |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC POWER STATION EQUIPMENT CO. Free format text: FORMER OWNER: SHANGHAI TURBINE CO., LTD. Effective date: 20080509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: No. 188, Chun Chun Road, Shanghai, Minhang: 201100 Patentee after: Shanghai Electric Station Equipment Co., Ltd. Address before: No. 333, Jiangchuan Road, Shanghai, Minhang District: 200240 Patentee before: Shanghai Steam Turbine Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120731 Granted publication date: 20030604 |