CN204942073U - The impeller assembly of high-speed centrifugal blower - Google Patents
The impeller assembly of high-speed centrifugal blower Download PDFInfo
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- CN204942073U CN204942073U CN201520706866.4U CN201520706866U CN204942073U CN 204942073 U CN204942073 U CN 204942073U CN 201520706866 U CN201520706866 U CN 201520706866U CN 204942073 U CN204942073 U CN 204942073U
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- impeller
- rotor
- stud bolt
- groove
- rotor shaft
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Abstract
The utility model discloses a kind of impeller assembly of high-speed centrifugal blower, comprise rotor, rotor shaft, impeller, stud bolt and locking nut, rotor upper-end surface is provided with a groove, the lower end surface of impeller is provided with boss, 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, stud bolt outer surface projection forms platform part, platform part lower surface is close to rotor shaft, platform part upper surface is close to boss.After the utility model rotor and impeller are installed, by being screwed into locking nut in stud bolt upper end, together with rotor is firmly lock onto with impeller; During dismounting, after locking nut is unclamped, act on impeller by the upper surface of platform part, very easily impeller and rotor are disassembled mutually.
Description
Technical field:
The utility model relates to a kind of impeller assembly of high-speed centrifugal blower, and 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.
Model utility content:
The utility model, for the deficiency of prior art, provides the impeller assembly of a kind of high-speed centrifugal blower (more than 18000 revs/min), and it has convenient disassembly and the advantage such as anti-loosing effect is good.
The technological scheme that the utility model adopts 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 utility model has following beneficial effect: after the utility model rotor 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 the utility model high-speed centrifugal blower.
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 utility model is further described.
As shown in Figure 1, the impeller assembly of the utility model high-speed centrifugal blower 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 utility model 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 utility model and the boss 31 of impeller is H6/k6.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, can also make some improvement under the prerequisite not departing from the utility model principle, these improvement also should be considered as protection domain of the present utility model.
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 |
|---|---|---|---|
| CN201520706866.4U CN204942073U (en) | 2015-09-11 | 2015-09-11 | The impeller assembly of high-speed centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706866.4U CN204942073U (en) | 2015-09-11 | 2015-09-11 | The impeller assembly of high-speed centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942073U true CN204942073U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520706866.4U Active CN204942073U (en) | 2015-09-11 | 2015-09-11 | The impeller assembly of high-speed centrifugal blower |
Country Status (1)
| Country | Link |
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| CN (1) | CN204942073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-09-11 CN CN201520706866.4U patent/CN204942073U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211102 No.99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province (Jiangning Development Zone) Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
|
| CP03 | Change of name, title or address |