CN105090110A - Impeller assembly of high-speed centrifugal blower - Google Patents
Impeller assembly of high-speed centrifugal blower Download PDFInfo
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- CN105090110A CN105090110A CN201510580172.5A CN201510580172A CN105090110A CN 105090110 A CN105090110 A CN 105090110A CN 201510580172 A CN201510580172 A CN 201510580172A CN 105090110 A CN105090110 A CN 105090110A
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- impeller
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- rotor shaft
- stud bolt
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Abstract
The invention discloses an impeller assembly of a high-speed centrifugal blower. The impeller assembly comprises a rotor, a rotor shaft, an impeller, a stud and a locking nut. The upper end face of the rotor is provided with a groove, and the lower end face of the impeller is provided with a boss. The rotor shaft is fixedly connected with the rotor. The upper end of the rotor shaft extends into the groove. The lower end of the stud is in threaded connection with the rotor shaft. The stud is sleeved with the impeller. The boss of the impeller is arranged in the groove of the rotor. The locking nut is in threaded connection with the stud. The lower surface of the locking nut abuts against the upper surface of the impeller. The outer surface of the stud protrudes to form a platform portion. The lower surface of the platform portion is tightly attached to the rotor shaft. The upper surface of the platform portion is tightly attached to the boss. After the rotor and the impeller are installed, the locking nut is screwed into the upper end of the stud, so that the rotor and the impeller are firmly locked. In the disassembling process, after the locking nut is loosened, the impeller and the rotor can be conveniently separated due to the fact that the upper surface of the platform portion acts on the impeller.
Description
Technical field:
The present invention relates to a kind of impeller assembly of high-speed centrifugal blower, it belongs to field of mechanical technique.
Background technique:
At present in general centrifugal blower, together with being connected to by the mode of keyway and bolt-locking between impeller and the rotor shaft of rotor, and in high-speed centrifugal blower (more than 18000 revs/min) working procedure, be easy to produce loosening, rotor dynamics variation, shorten bearing working life, and the mode of existing keyway and bolt-locking is when disassembling impeller mutually with the rotor shaft of rotor, also inconvenient.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Summary of the invention:
The present invention is directed to the deficiency of prior art, provide the impeller assembly of a kind of high-speed centrifugal blower (more than 18000 revs/min), it has convenient disassembly and the advantage such as anti-loosing effect is good.
The technical solution adopted in the present invention has: a kind of impeller assembly of high-speed centrifugal blower, it comprises rotor, rotor shaft, impeller, stud bolt and locking nut, described rotor upper-end surface is provided with a groove, the lower end surface of impeller is provided with the boss suitable with described groove, described rotor shaft is fixedly connected with rotor, and the upper end of rotor shaft stretches in groove, the lower end of stud bolt is threaded on rotor shaft, impeller set is located on stud bolt, and the boss of impeller is placed in the groove of rotor, locking nut is threaded on stud bolt, and the lower surface of locking nut is closely against on the upper surface of impeller, described stud bolt outer surface projection is formed with platform part, the lower surface of described platform part is close to rotor shaft, the upper surface of described platform part is close to boss.
Further, the boss of described impeller is provided with a dismounting groove, and described platform part is placed in this dismounting groove.
Further, described epitrochanterian groove and rotor coaxial are arranged.
Further, the fit tolerance between the groove of described rotor and the boss of impeller is H6/k6.
Further, described rotor shaft is provided with tapped hole, and the lower end of described stud bolt is threaded in the tapped hole of rotor shaft.
Further, the top of described stud bolt is provided with the breach that is convenient to spanner dismounting.
The present invention has following beneficial effect: after rotor of the present invention and impeller are installed, by being screwed into locking nut in stud bolt upper end, and then together with firmly being lock onto with impeller by rotor; When dismounting, after locking nut is unclamped, acted on impeller by the upper surface of platform part, and then very easily impeller and rotor are disassembled mutually.
Accompanying drawing illustrates:
Fig. 1 is the structural drawing of the impeller assembly of high-speed centrifugal blower of the present invention.
Wherein:
1-rotor; 2-rotor shaft; 3-impeller; 4-stud bolt; 5-platform part; 6-locking nut; 11-groove; 21-tapped hole; 31-boss; 32-dismantles groove; 41-breach.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, the impeller assembly of high-speed centrifugal blower of the present invention comprises rotor 1, rotor shaft 2, impeller 3, stud bolt 4 and locking nut 6, rotor shaft 2 is fixedly connected with rotor 1, stud bolt 4 is threaded on rotor shaft 2, and impeller 3 is fixedly connected on stud bolt 4 by locking nut 6.
Circular groove 11 is provided with in the upper-end surface of rotor 1, this circular groove 11 is coaxial with rotor 1, the round boss 31 suitable with groove 11 is provided with in the lower end surface of impeller 3, rotor shaft 2 is fixedly connected in rotor 1, and the upper end of rotor shaft 2 stretches in the groove 11 of rotor 1, the lower end of stud bolt 4 is threaded in the tapped hole 21 of rotor shaft 2 upper end.Stud bolt 4 outer surface projection is formed with platform part 5, and the lower surface of platform part 5 is close to rotor shaft 2, and the upper surface of platform part 5 is close to boss 31.Impeller 3 is sheathed on stud bolt 4, and the boss 31 of impeller is placed in the groove 11 of rotor, and locking nut 6 is threaded on stud bolt 4, and the lower surface of locking nut 6 is closely against on the upper surface of impeller 3.
The present invention is for ease of dismounting, and the boss 31 of impeller 3 is provided with a dismounting groove 32, and when impeller 3 is anchored on stud bolt 4, platform part 5 is placed in this dismounting groove 32.For ease of unscrewing stud bolt 4, be provided with the breach 41 that is convenient to spanner dismounting on the top of stud bolt 4.
During dismounting impeller 3, first locking nut 6 unscrewed and take away, then being acted on the breach 41 of stud bolt 4 by spanner, stud bolt 4 is unscrewed and takes away, while taking stud bolt 4 away, act on impeller 3 by the upper surface of platform part 5, and then impeller 3 is disassembled from rotor 1.
Fit tolerance between the groove 11 of the rotor in the present invention and the boss 31 of impeller is H6/k6.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (6)
1. the impeller assembly of a high-speed centrifugal blower, it is characterized in that: comprise rotor (1), rotor shaft (2), impeller (3), stud bolt (4) and locking nut (6), described rotor (1) upper-end surface is provided with a groove (11), the lower end surface of impeller (3) is provided with the boss (31) suitable with described groove (11), described rotor shaft (2) is fixedly connected with rotor (1), and the upper end of rotor shaft (2) stretches in groove (11), the lower end of stud bolt (4) is threaded on rotor shaft (2), impeller (3) is sheathed on stud bolt (4), and the boss of impeller (31) is placed in the groove (11) of rotor, locking nut (6) is threaded on stud bolt (4), and the lower surface of locking nut (6) is closely against on the upper surface of impeller (3), described stud bolt (4) outer surface projection is formed with platform part (5), the lower surface of described platform part (5) is close to rotor shaft (2), the upper surface of described platform part (5) is close to boss (31).
2. the impeller assembly of high-speed centrifugal blower as claimed in claim 1, it is characterized in that: the boss (31) of described impeller (3) is provided with a dismounting groove (32), and described platform part (5) is placed in this dismounting groove (32).
3. the impeller assembly of high-speed centrifugal blower as claimed in claim 2, is characterized in that: the groove (11) on described rotor (1) and rotor (1) are coaxially arranged.
4. the impeller assembly of high-speed centrifugal blower as claimed in claim 3, is characterized in that: the fit tolerance between the groove (11) of described rotor (1) and the boss (31) of impeller is H6/k6.
5. the impeller assembly of high-speed centrifugal blower as claimed in claim 4, it is characterized in that: described rotor shaft (2) is provided with tapped hole (21), the lower end of described stud bolt (4) is threaded in the tapped hole (21) of rotor shaft.
6. the impeller assembly of high-speed centrifugal blower as claimed in claim 5, is characterized in that: the top of described stud bolt (4) is provided with the breach (41) that is convenient to spanner dismounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510580172.5A CN105090110A (en) | 2015-09-11 | 2015-09-11 | Impeller assembly of high-speed centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510580172.5A CN105090110A (en) | 2015-09-11 | 2015-09-11 | Impeller assembly of high-speed centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090110A true CN105090110A (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510580172.5A Pending CN105090110A (en) | 2015-09-11 | 2015-09-11 | Impeller assembly of high-speed centrifugal blower |
Country Status (1)
| Country | Link |
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| CN (1) | CN105090110A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505783A (en) * | 2016-12-19 | 2017-03-15 | 南京磁谷科技有限公司 | A kind of 280kw magnetic-suspension high-speeds blower fan structure |
| CN106787387A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor anticollision wear-resistant protection covers fixed structure |
| CN106787431A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor impeller of rotor quick despatch structure |
| CN106787417A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor structure |
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55117098A (en) * | 1979-03-05 | 1980-09-09 | Hitachi Ltd | Impeller of centrifugal compressor |
| CN101725563A (en) * | 2009-11-20 | 2010-06-09 | 无锡压缩机股份有限公司 | Draw bail of vane wheel and high-speed rotation shaft of high-speed centrifugal compression device |
| CN102748326A (en) * | 2012-07-20 | 2012-10-24 | 湖北省风机厂有限公司 | Automatic locking device for impeller with high-speed rotor |
| CN104121225A (en) * | 2014-08-06 | 2014-10-29 | 南京磁谷科技有限公司 | Centrifugal blower with rotor axial force control device |
| CN204942073U (en) * | 2015-09-11 | 2016-01-06 | 南京磁谷科技有限公司 | The impeller assembly of high-speed centrifugal blower |
-
2015
- 2015-09-11 CN CN201510580172.5A patent/CN105090110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55117098A (en) * | 1979-03-05 | 1980-09-09 | Hitachi Ltd | Impeller of centrifugal compressor |
| CN101725563A (en) * | 2009-11-20 | 2010-06-09 | 无锡压缩机股份有限公司 | Draw bail of vane wheel and high-speed rotation shaft of high-speed centrifugal compression device |
| CN102748326A (en) * | 2012-07-20 | 2012-10-24 | 湖北省风机厂有限公司 | Automatic locking device for impeller with high-speed rotor |
| CN104121225A (en) * | 2014-08-06 | 2014-10-29 | 南京磁谷科技有限公司 | Centrifugal blower with rotor axial force control device |
| CN204942073U (en) * | 2015-09-11 | 2016-01-06 | 南京磁谷科技有限公司 | The impeller assembly of high-speed centrifugal blower |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505783A (en) * | 2016-12-19 | 2017-03-15 | 南京磁谷科技有限公司 | A kind of 280kw magnetic-suspension high-speeds blower fan structure |
| CN106787387A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor anticollision wear-resistant protection covers fixed structure |
| CN106787431A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor impeller of rotor quick despatch structure |
| CN106787417A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor structure |
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
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Application publication date: 20151125 |
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| WD01 | Invention patent application deemed withdrawn after publication |