CN107677469A - It is used for the conversion sleeve of impeller test in a kind of overspeed test bench - Google Patents
It is used for the conversion sleeve of impeller test in a kind of overspeed test bench Download PDFInfo
- Publication number
- CN107677469A CN107677469A CN201711051820.3A CN201711051820A CN107677469A CN 107677469 A CN107677469 A CN 107677469A CN 201711051820 A CN201711051820 A CN 201711051820A CN 107677469 A CN107677469 A CN 107677469A
- Authority
- CN
- China
- Prior art keywords
- impeller
- cylindrical portion
- conversion sleeve
- hole
- test
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses the conversion sleeve for being used for impeller test in a kind of overspeed test bench, including being integrally formed ground round platform portion and cylindrical portion, the cylindrical portion is placed in the circle centre position in round platform portion, the outer circle wall in round platform portion raises up and forms the radial positioning side of ring-type, formed with stopper slot between radial positioning side and cylindrical portion, through hole is provided with the axis direction of cylindrical portion, the side wall of cylindrical portion is provided with screwed hole；Screwed hole and through hole connect.During impeller hypervelocity, when impeller and temperature of rotor rise, the swell increment of boss portion is bigger than the swell increment on radial positioning side in conversion sleeve in impeller, therefore the cooperation between impeller and conversion sleeve is even closer, reduces out-of-balance force.
Description
Technical field：
The present invention relates to the conversion sleeve for being used for impeller test in a kind of overspeed test bench.
Background technology：
The endoporus of the cylindrical and impeller of conversion sleeve is that gap coordinates in existing overspeed test bench, in impeller hypervelocity process
In, temperature rises, and because the thermal coefficient of expansion of material is different, impeller endoporus and the cylindrical gap of conversion sleeve continue to increase, uneven
Power also increases, and the rotor oscillation for making to run at high speed strengthens.
The content of the invention：
The present invention is to provide to solve the above-mentioned problems of the prior art and be used for impeller in a kind of overspeed test bench
The conversion sleeve of test.
The technical solution adopted in the present invention has：It is used for the conversion sleeve of impeller test, including one in a kind of overspeed test bench
Body formed ground round platform portion and cylindrical portion, the cylindrical portion are placed in the circle centre position in round platform portion, and the outer circle wall in round platform portion raises up
And the radial positioning side of ring-type is formed, formed with stopper slot between radial positioning side and cylindrical portion, in the axis direction of cylindrical portion
Through hole is provided with, the side wall of cylindrical portion is provided with screwed hole；Screwed hole and through hole connect.
Further, two rotation stop platform parts are arranged with the outer circle wall of the cylindrical portion, are set in rotation stop platform part
Fluted portion, the concave part connect with through hole.
Further, the conversion sleeve, which is adopted, is made of a steel.
The present invention has the advantages that：During impeller hypervelocity, when impeller and temperature of rotor rise, impeller convexity
The swell increment in platform portion is bigger than the swell increment on radial positioning side in conversion sleeve, therefore the cooperation between impeller and conversion sleeve more steps up
It is close, reduce out-of-balance force.
Brief description of the drawings：
Fig. 1 is structure chart of the present invention.
Fig. 2 is application structure figure of the present invention.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention discloses the conversion sleeve for being used for impeller test in a kind of overspeed test bench, including it is integrally formed
Ground round platform portion 211 and cylindrical portion 212, cylindrical portion 212 are placed in the circle centre position in round platform portion 211, and the outer circle wall in round platform portion 211 is upward
It is raised simultaneously to form the radial positioning side 213 of ring-type, formed with stopper slot 210 between radial positioning side 213 and cylindrical portion 212,
The axis direction of cylindrical portion 212 is provided with through hole 214, and the side wall of cylindrical portion 212 is provided with screwed hole 215, screwed hole 215 and logical
Hole 214 connects.
Two rotation stop platform parts 216 are arranged with the outer circle wall of the cylindrical portion 212 of conversion sleeve, in rotation stop platform part
216 are provided with concave part 217, and the concave part 217 connects with through hole 214.
With reference to Fig. 2, when in use, conversion sleeve is set in the top of rotor 13, and holding screw 24 passes through conversion sleeve and screw thread
It is connected on rotor 13, impeller 22 is sheathed on conversion sleeve, and the boss portion 221 of the lower surface of impeller 22 is placed in the limit of conversion sleeve
In the groove 210 of position, the cylindrical portion 212 of conversion sleeve is contacted on the step surface in the top bar hole of impeller 22.Depression bar 23 is along rotor 13
Axis direction sequentially passes through impeller 22 and conversion sleeve and is threaded on rotor 13, and impeller 22 is pressed on conversion sleeve.
Conversion sleeve, which is adopted, to be made of a steel, and impeller 22, which is adopted, to be formed from aluminium.
When in use, when impeller 22 and the temperature of rotor 13 rise, the swell increment of boss portion 221 is than in conversion sleeve in impeller 22
The swell increment on radial positioning side 213 is big, therefore the cooperation between impeller 22 and conversion sleeve is even closer, reduces out-of-balance force.
Conversion sleeve is used for anti-torsion provided with rotation stop platform part 216, connects holding screw 24 in the internal thread of screwed hole 215, uses
In the connection of rotor and conversion sleeve.The purpose of milling concave part 217 is in rotation stop platform part 216：Because rotation stop is milled out on conversion sleeve
After platform part 216, the minimum wall thickness (MINI W.) that can cause the position of through hole 214 is only 0.1mm, for the sake of installing, by way of groove milling
Remove the relatively thin wall of rotation stop platform part 216.Cylindrical portion 212 is integrally formed in the present invention, and the upper surface of cylindrical portion 212 can be protected
Intensity during 212 anti-torsion of cylindrical portion is demonstrate,proved, torsion is not easy and deforms.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (3)
1. it is used for the conversion sleeve of impeller test in a kind of overspeed test bench, it is characterised in that：Including being integrally formed ground round platform portion
(211) and cylindrical portion (212), the cylindrical portion (212) are placed in the circle centre position of round platform portion (211), the excircle of round platform portion (211)
Wall raises up and forms the radial positioning side (213) of ring-type, between radial positioning side (213) and cylindrical portion (212) formed with
Stopper slot (210), is provided with through hole (214) on the axis direction of cylindrical portion (212), and the side wall of cylindrical portion (212) is provided with spiral shell
Pit (215)；Screwed hole (215) and through hole (214) connect.
2. it is used for the conversion sleeve of impeller test in overspeed test bench as claimed in claim 1, it is characterised in that：The cylindrical portion
(212) two rotation stop platform parts (216) are arranged with outer circle wall, concave part is provided with rotation stop platform part (216)
(217), the concave part (217) connects with through hole (214).
3. it is used for the conversion sleeve of impeller test in overspeed test bench as claimed in claim 1, it is characterised in that：The conversion sleeve
Adopt and be made of a steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711051820.3A CN107677469A (en) | 2017-10-30 | 2017-10-30 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711051820.3A CN107677469A (en) | 2017-10-30 | 2017-10-30 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677469A true CN107677469A (en) | 2018-02-09 |
Family
ID=61143938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711051820.3A Pending CN107677469A (en) | 2017-10-30 | 2017-10-30 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677469A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203584870U (en) * | 2013-11-12 | 2014-05-07 | 湘潭新力机械有限公司 | Split impeller shaft for airlocks |
| CN104405683A (en) * | 2014-12-12 | 2015-03-11 | 中国北车集团大连机车研究所有限公司 | Centrifugal-flow compressor rotor structure |
| CN105090109A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal type air blower |
| CN105090110A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal blower |
| CN106640750A (en) * | 2016-09-26 | 2017-05-10 | 北京航空航天大学 | High-speed centrifugal compressor impeller rotor |
| CN207423523U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | For the conversion sleeve of impeller test in a kind of overspeed test bench |
-
2017
- 2017-10-30 CN CN201711051820.3A patent/CN107677469A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203584870U (en) * | 2013-11-12 | 2014-05-07 | 湘潭新力机械有限公司 | Split impeller shaft for airlocks |
| CN104405683A (en) * | 2014-12-12 | 2015-03-11 | 中国北车集团大连机车研究所有限公司 | Centrifugal-flow compressor rotor structure |
| CN105090109A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal type air blower |
| CN105090110A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal blower |
| CN106640750A (en) * | 2016-09-26 | 2017-05-10 | 北京航空航天大学 | High-speed centrifugal compressor impeller rotor |
| CN207423523U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | For the conversion sleeve of impeller test in a kind of overspeed test bench |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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