CN203257734U - Anti-shifting fan impeller - Google Patents
Anti-shifting fan impeller Download PDFInfo
- Publication number
- CN203257734U CN203257734U CN 201320270268 CN201320270268U CN203257734U CN 203257734 U CN203257734 U CN 203257734U CN 201320270268 CN201320270268 CN 201320270268 CN 201320270268 U CN201320270268 U CN 201320270268U CN 203257734 U CN203257734 U CN 203257734U
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- CN
- China
- Prior art keywords
- impeller
- model
- shifting
- rivet
- utility
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to the technical field of design and manufacture of a fanner, and particularly relates to an anti-shifting fan impeller. The traditional fanner is in an assembling model of bolt connection and then positioned by using a conical pin, because the physical dimension of a threaded connection hole is 3 mm larger than the diameter of a bolt in a diameter direction, after the fan impeller is continuously operated, the conical positioning pin can not ensure close connection, and thus the shifting between a shaft disc and the impeller in a circumferential direction is caused. According to the utility model, a fan rotor unit shaft disc and the impeller are connected and fixed by adopting a rivet, and the rivet is in interference fit with a connecting hole, so that the shifting in the circumferential direction is prevented, the operation reliability of an impeller unit is nearly enhanced by 35%, and the connection strength and rigidity are also outstandingly enhanced.
Description
Technical field
The utility model relates to the design and manufacture technical field of ventilator, specifically a kind of Anti-moving draught fan impeller.
Background technique
Its assembling mode of existing ventilator is by Bolt Connection, locates with taper pin again.Because greater than diameter of bolt 3mm, behind the draught fan impeller continuous operation, the circular cone locating stud can't guarantee close-coupled to the physical dimension in scyewed joint hole, has caused the play of circumferencial direction between reel and the impeller in diametric(al).Draught fan impeller group operational reliability, Security are reduced.
Summary of the invention
The purpose of this utility model is to want to provide a kind of Anti-moving draught fan impeller, the defective that exists to overcome prior art.
The technical solution of the utility model is that fan propeller group reel and impeller adopt rivet to be connected and fixed, and rivet and connecting hole are interference fit.
Further, described rivet is 0.03-0.06mm for the magnitude of interference of connecting hole.
The utility model has the advantages that the play of having avoided causing behind the blower fan long-play circumference of impeller direction, under the prerequisite of the intensity that does not reduce connection and rigidity, make the impeller reliability of operation improve nearly 35%.In addition, by experiment of dynamic balancing machine testing identity, the balance accuracy grade of this model utility invention is brought up to the G2.5 level by the G6.3 level.Simultaneously, the rotor set startup is changed into and can directly directly be risen at 500r/min → 600r/min by original 100r/min → 200r/min → 300r/min → 500r/min, shortens starting time about 30%.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the I section enlarged view of Fig. 1.
Embodiment
Among the figure: 1. wheel cap 2. blades 3. wheel discs 4. wheel hubs 5. rivets.
From Fig. 1, Fig. 2 as can be known, fan propeller group reel and impeller adopt rivet 5 to be connected and fixed; Rivet 5 is interference fit with connecting hole.
Described rivet 5 is 0.03-0.06mm for the magnitude of interference of connecting hole; What specifically adopt is hydraulic pressure pulling rivet technique.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give all mode of executions exhaustive.Everyly belong to the row that apparent variation that the technical solution of the utility model extends out or change still are in protection domain of the present utility model.
Claims (2)
1. Anti-moving draught fan impeller is characterized in that: fan propeller group reel and impeller adopt rivet (5) to be connected and fixed, and rivet (5) is interference fit with connecting hole.
2. a kind of Anti-moving draught fan impeller as claimed in claim 1, it is characterized in that: described rivet (5) is 0.03-0.06mm for the magnitude of interference of connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320270268 CN203257734U (en) | 2013-05-17 | 2013-05-17 | Anti-shifting fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320270268 CN203257734U (en) | 2013-05-17 | 2013-05-17 | Anti-shifting fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257734U true CN203257734U (en) | 2013-10-30 |
Family
ID=49470303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320270268 Expired - Lifetime CN203257734U (en) | 2013-05-17 | 2013-05-17 | Anti-shifting fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855282A (en) * | 2021-03-01 | 2021-05-28 | 杭州汽轮机股份有限公司 | Method for controlling assembly interference of adjusting grade taper pin of industrial steam turbine |
-
2013
- 2013-05-17 CN CN 201320270268 patent/CN203257734U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855282A (en) * | 2021-03-01 | 2021-05-28 | 杭州汽轮机股份有限公司 | Method for controlling assembly interference of adjusting grade taper pin of industrial steam turbine |
| CN112855282B (en) * | 2021-03-01 | 2022-04-12 | 杭州汽轮机股份有限公司 | Method for controlling assembly interference of adjusting grade taper pin of industrial steam turbine |
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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: 075100, Hebei, Zhangjiakou, Xuanhua District, Zhongshan Avenue northbound drilling machine Park West Patentee after: HEBEI QIANHAI BLOWER Co.,Ltd. Address before: 075100, No. 196, government house, Xuanhua District, Hebei, Zhangjiakou Patentee before: Hebei Qianhai Blower Manufacturing Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |