CN202746281U - High-speed rotor structure of centrifugal blower - Google Patents
High-speed rotor structure of centrifugal blower Download PDFInfo
- Publication number
- CN202746281U CN202746281U CN 201220348356 CN201220348356U CN202746281U CN 202746281 U CN202746281 U CN 202746281U CN 201220348356 CN201220348356 CN 201220348356 CN 201220348356 U CN201220348356 U CN 201220348356U CN 202746281 U CN202746281 U CN 202746281U
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- Prior art keywords
- gear shaft
- impeller
- speed gear
- high speed
- centrifugal blower
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Abstract
The utility model relates to a high-speed rotor structure of a centrifugal blower, comprising a high-speed gear shaft, an impeller, a stay bolt, a C-shaped ring, a nut, a protection cover and a screw, wherein one end of the stay bolt is connected to the high-speed gear shaft, and then passes through the impeller and the C-shaped ring in turn; the impeller is tightly fixed on the high-speed gear shaft by screwing the nut; the screw is screwed into a threaded hole at one end of the stay bolt; and the protection cover is connected with the C-shaped ring. A counterweight plate structure is adopted between a radial bearing supporting place and a thrust bearing supporting place of the high-speed gear shaft. A cylindrical counterweight plate is provided with a locating shaft shoulder and is concentric to the high-speed gear shaft. The high-speed rotor structure of the centrifugal blower is simple, the counterweight plate structure at a shaft end contributes to a balanced gravity, the vibrating amplitude of the impeller is reduced, the system stability is improved, the load of two radial bearings is effectively balanced, a gap between the impeller and a volute is reduced, and the efficiency of the blower is improved.
Description
Technical field
The utility model relates to a kind of high speed rotor structure of centrifugal blower, and specifically a kind of modified model high gear axle construction of monopole centrifugal blower belongs to the mechanical structure technical field.
Background technique
At present, at the monopole centrifugal blower that is used on the sewage treatment aeration system, impeller obtains higher rotating speed by gear speed increaser.Motor connects with lower velocity shaft, and impeller connects with high speed shaft.In existing technology, high speed gear shaft one end connects impeller, behind the maze type sealing configuration, is supported by radial bearing.The other end is also supported by radial bearing, and holds the end to contact with thrust bearing, and two bearings are adjacent.When impeller is larger, one end quality is bigger than normal, meeting is so that outside deviation of gravity center to two radial bearing of rotor-support-foundation system, form a kind of cantilever structure, thereby make impeller when high speed rotating, produce larger vibrations, reduced Systems balanth, need simultaneously to enlarge the gap between impeller and the spiral case, to prevent scraping, and the enlarged meeting in gap causes the reduction of blower efficiency.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby provide a kind of high speed rotor structure of centrifugal blower, the center of gravity of its efficient balance rotor-support-foundation system, the vibration amplitude of reduction impeller, improve Systems balanth, make simultaneously blower have higher efficient.
According to the technological scheme that the utility model provides, a kind of high speed rotor structure of centrifugal blower comprises high speed gear shaft, impeller, stay-bolt, C shape ring, nut, safety cover and screw; Described stay-bolt one end connects high speed gear shaft, then passes successively impeller and C shape ring, by screwing nut impeller is fastened on the high speed gear shaft; Described screw screws in the tapped hole of stay-bolt one end, and safety cover and C shape ring connect.Described high speed gear shaft adopts the balancing disk structure between radial bearing supporting place and thrust bearing supporting place.
As further improvement of the utility model, described balancing disk is cylinder type and with the location shaft shoulder, and balancing disk is concentric with high speed gear shaft.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, and the balancing disk structure of axle head is conducive to balanced center of gravity, reduces the impeller vibration amplitude, improves Systems balanth, and the load of efficient balance two radial bearings reduces the gap between impeller and the spiral case, thereby improves the efficient of blower.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Following the utility model is further described in connection with the embodiment in the accompanying drawing:
As shown in Figure 1, comprise high speed gear shaft 1, impeller 2, stay-bolt 3, C shape ring 4, nut 5, safety cover 6 and screw 7.
Described stay-bolt 3 one ends connect high speed gear shaft 1, then pass successively impeller 2 and C shape ring 4, thereby then by screwing nut 5 impeller 2 are fastened on the high speed gear shaft 1.Described screw 7 screws in the tapped hole of stay-bolt 3 one ends, thereby safety cover 6 and C shape ring 4 are connected.The A of described high speed gear shaft 1, B two places contact with radial bearing respectively, and the C place contacts with thrust bearing.Described high speed gear shaft 1 is that balancing disk 1-1 structure is (on high speed gear shaft between radial bearing supporting place A and thrust bearing supporting place C, and between radial bearing supporting place and thrust bearing supporting place, be cylindrical section, this cylindrical section is with the location shaft shoulder, balancing disk structure for gear shaft, a part that belongs to gear shaft), balancing disk 1-1 is cylinder type and with the location shaft shoulder, and balancing disk 1-1 is concentric with high speed gear shaft.
Whole rotor-support-foundation system is supported by two radial bearings and a thrust bearing, and intercepts gear-box and spiral case by the labyrinth sealing system.Motor drives high speed gear shaft by low speed gear, so that impeller obtains higher rotation speed.When impeller quality bigger than normal lays particular stress on, the balancing disk of the other end of high speed gear shaft can balanced whole rotor-support-foundation system center of gravity, center of gravity is remained in the middle of A and the B.Like this with regard to balance the load of two radial bearings, avoided the vibrations that produce to the two bearings because of deviation of gravity center, improved Systems balanth, also less gap can be set between spiral case and the impeller simultaneously, so that the blower air loss reduces, further improve the efficient of blower.
Claims (2)
1. the high speed rotor structure of a centrifugal blower is characterized in that: comprise high speed gear shaft (1), impeller (2), stay-bolt (3), C shape ring (4) and safety cover (6); Described stay-bolt (3) one ends connect high speed gear shaft (1), then pass successively impeller (2) and C shape ring (4), by screwing nut (5) impeller (2) are fastened on the high speed gear shaft (1); Screw (7) screws in the tapped hole of stay-bolt (3) one ends, and safety cover (6) and C shape ring (4) connect; Described high speed gear shaft (1) adopts the balancing disk structure between radial bearing supporting place and thrust bearing supporting place.
2. the high speed rotor structure of a kind of centrifugal blower as claimed in claim 1 is characterized in that:
Described balancing disk (1-1) is cylinder type and with the location shaft shoulder, and balancing disk is concentric with high speed gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348356 CN202746281U (en) | 2012-07-18 | 2012-07-18 | High-speed rotor structure of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348356 CN202746281U (en) | 2012-07-18 | 2012-07-18 | High-speed rotor structure of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746281U true CN202746281U (en) | 2013-02-20 |
Family
ID=47705682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220348356 Expired - Lifetime CN202746281U (en) | 2012-07-18 | 2012-07-18 | High-speed rotor structure of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746281U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734216A (en) * | 2012-07-18 | 2012-10-17 | 无锡杰尔压缩机有限公司 | High-speed rotor structure of centrifugal blower |
| CN104132005A (en) * | 2014-08-06 | 2014-11-05 | 南京磁谷科技有限公司 | Draught fan capable of achieving rotor counterweight balance and counterweight balance method thereof |
| CN106837849A (en) * | 2017-01-16 | 2017-06-13 | 湖南航翔燃气轮机有限公司 | Centrifugal blower high speed rotor structure |
| CN112008627A (en) * | 2020-08-07 | 2020-12-01 | 中国北方发动机研究所(天津) | Dynamic balance tool for compressor impeller |
-
2012
- 2012-07-18 CN CN 201220348356 patent/CN202746281U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734216A (en) * | 2012-07-18 | 2012-10-17 | 无锡杰尔压缩机有限公司 | High-speed rotor structure of centrifugal blower |
| CN104132005A (en) * | 2014-08-06 | 2014-11-05 | 南京磁谷科技有限公司 | Draught fan capable of achieving rotor counterweight balance and counterweight balance method thereof |
| CN104132005B (en) * | 2014-08-06 | 2016-08-24 | 南京磁谷科技有限公司 | A kind of blower fan being capable of rotor counterweight balance and counterweight balance method thereof |
| CN106837849A (en) * | 2017-01-16 | 2017-06-13 | 湖南航翔燃气轮机有限公司 | Centrifugal blower high speed rotor structure |
| CN106837849B (en) * | 2017-01-16 | 2018-01-30 | 湖南航翔燃气轮机有限公司 | Centrifugal blower high speed rotor structure |
| CN112008627A (en) * | 2020-08-07 | 2020-12-01 | 中国北方发动机研究所(天津) | Dynamic balance tool for compressor impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214101 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee after: GL-TURBO LLC Address before: 214192 Jiangsu Province, Wuxi city Xishan District of Xishan Economic Development Zone in three Furong Road No. 99 building six room 507 zuiun Patentee before: GL-TURBO Compressor, LLC |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |