CN204942072U - A kind of impeller assembly of high-speed centrifugal blower - Google Patents
A kind of impeller assembly of high-speed centrifugal blower Download PDFInfo
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- CN204942072U CN204942072U CN201520704524.9U CN201520704524U CN204942072U CN 204942072 U CN204942072 U CN 204942072U CN 201520704524 U CN201520704524 U CN 201520704524U CN 204942072 U CN204942072 U CN 204942072U
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- impeller
- rotor
- groove
- stud bolt
- rotor shaft
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Abstract
The utility model discloses a kind of impeller assembly of high-speed centrifugal blower, it comprises rotor, rotor shaft, impeller, stud bolt and gland nut, rotor upper-end surface is provided with a groove, the lower end surface of impeller is provided with the boss suitable with groove, medium location fit mode is adopted between groove and 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, gland nut is threaded on stud bolt, and impeller is anchored on rotor, the lower end surface of boss is provided with a locating slot, the upper end of rotor shaft extends in locating slot.The utility model rotor and impeller is quick for installation, by impeller thermal expansion, centrifugal force, rotor and impeller dynamic performance are remained unchanged substantially when running up, is being screwed into gland nut by stud bolt upper end, and then together with rotor is firmly lock onto with impeller.
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:
General centrifugal blower at present, rotor shaft inserts and is connected to together by the mode of keyway and bolt-locking in impeller bore, and still adopt conventional coupling arrangement at high-speed centrifugal blower (more than 18000 revs/min), the thermal expansion deformation amount produced when impeller (aluminum alloy) High Rotation Speed and centrifugal action make to be easy between impeller and axle produce loosening, rotor dynamics variation, shorten bearing working life, reduce equipment use reliability.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Model utility content:
The utility model is the impeller assembly providing a kind of high-speed centrifugal blower in order to solve above-mentioned prior art existing problems, the advantages such as it has rotor dynamics, and 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 gland 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, gland nut is threaded on stud bolt, and impeller is anchored on rotor, the lower end surface of described boss is provided with a locating slot, the upper end of described rotor shaft extends in locating slot.
Further, described epitrochanterian groove and rotor coaxial are arranged.
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, medium location fit mode (H7/f6) is adopted between the groove of described rotor and the boss of impeller.
Further, elastic washer is provided with between described gland nut and impeller.
The utility model has following beneficial effect: after the utility model rotor and impeller adopt medium location fit mounting type, then be screwed into gland nut by stud bolt upper end, and then together with rotor is lock onto with impeller.
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-gland nut; 6-elastic washer; 11-groove; 21-tapped hole; 31-boss; 32-locating slot.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
Please refer to shown in Fig. 1, the impeller assembly of the utility model high-speed centrifugal blower comprises rotor 1, rotor shaft 2, impeller 3, stud bolt 4 and gland nut 5, rotor shaft 2 is fixedly connected with rotor 1, stud bolt 4 is threaded on rotor shaft 2, and impeller 3 is anchored on rotor 1 by gland nut 5.
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, impeller 3 is sheathed on stud bolt 4, and the boss 31 of impeller is placed in the groove 11 of rotor, gland nut 5 is threaded on stud bolt 4, elastic washer 6 is provided with between gland nut 5 and impeller 3, the lower surface of gland nut 5 is closely against on the upper surface of elastic washer 6, the lower surface of elastic washer 6 is closely against on the upper surface of impeller 3.
The utility model is further to the location of impeller 3, and the boss 31 of impeller 3 is provided with a locating slot 32, and when impeller 3 is anchored on rotor 1, the upper end of rotor shaft 2 extends in this locating slot 32.
Medium location fit mode (H7/f6) is adopted between the groove 11 of the rotor in the utility model and the boss 31 of impeller.
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 (5)
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 gland nut (5), 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, gland nut (5) is threaded on stud bolt (4), and impeller (3) is anchored on rotor (1), the lower end surface of described boss (31) is provided with a locating slot (32), the upper end of described rotor shaft (2) extends in locating slot (32).
2. the impeller assembly of high-speed centrifugal blower as claimed in claim 1, is characterized in that: described epitrochanterian groove (11) and rotor (1) are coaxially arranged.
3. the impeller assembly of high-speed centrifugal blower as claimed in claim 2, 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.
4. the impeller assembly of high-speed centrifugal blower as claimed in claim 3, is characterized in that: adopt medium location fit mode between the groove (11) of described rotor and the boss (31) of impeller.
5. the impeller assembly of high-speed centrifugal blower as claimed in claim 4, is characterized in that: be provided with elastic washer (6) between described gland nut (5) and impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520704524.9U CN204942072U (en) | 2015-09-11 | 2015-09-11 | A kind of impeller assembly of high-speed centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520704524.9U CN204942072U (en) | 2015-09-11 | 2015-09-11 | A kind of impeller assembly of high-speed centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942072U true CN204942072U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520704524.9U Active CN204942072U (en) | 2015-09-11 | 2015-09-11 | A kind of impeller assembly of high-speed centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107313811A (en) * | 2017-07-25 | 2017-11-03 | 航天推进技术研究院 | A kind of radial impeller for ORC TRTs |
-
2015
- 2015-09-11 CN CN201520704524.9U patent/CN204942072U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107313811A (en) * | 2017-07-25 | 2017-11-03 | 航天推进技术研究院 | A kind of radial impeller for ORC TRTs |
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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 | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province 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. |