CN102072190B - Fan with internal circulation heating - Google Patents
Fan with internal circulation heating Download PDFInfo
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- CN102072190B CN102072190B CN 201010550071 CN201010550071A CN102072190B CN 102072190 B CN102072190 B CN 102072190B CN 201010550071 CN201010550071 CN 201010550071 CN 201010550071 A CN201010550071 A CN 201010550071A CN 102072190 B CN102072190 B CN 102072190B
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- main shaft
- bearings
- bearing
- fan
- slippage
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Abstract
The invention discloses a fan with internal circulation heating, which comprises a casing and a main shaft penetrated in the casing, wherein the middle part of the main shaft is provided with an impeller, and both ends of the main shaft are fixed on the casing by bearings. The fan with internal circulation heating is characterized in that the joints of both ends of the main shaft and the bearings are provided with two parallel slippage grooves along the axial direction of the main shaft, the corresponding central angles of the two slippage grooves are also 120 degrees, and the fastening screws of the bearings are positioned in the two slippage grooves. Compared with the prior art, the two slippage grooves are arranged at the joints of the main shaft and the bearings in the fan with internal circulation heating, which is disclosed by the invention, and the fastening screws of the bearings are also fixed in the slippage grooves. When the main shaft is expanded because of high temperature, the main shaft is in slip deformation along the axial direction. Moreover, at that time, the fastening screws of the bearings are positioned in the slippage grooves. Therefore, when the main shaft is deformed and lengthened, the deviation of the bearings does not occur, and the phenomenon of blockage of the bearings is thoroughly solved. The method is simple and convenient, and the production cost also is not increased.
Description
Technical field
The present invention relates to the blower fan technical field, specifically a kind of interior circulation heating fan.
Background technique
The hot blast stove blower fan is widely used in hot blast stove system, is called as " hot blast stove heart ".Occupy very important status in China's bimetal cable production technology.
Hot blast stove blower fan characteristics:
1, serviceability temperature is high, 350～1000 ℃.
2, rotation speed of fan is high, and main shaft is long, belongs to flexible shaft (main shaft critical speed of rotation is between second order and three rank critical speed of rotation), general blower fan is all stiff shaft., main shaft long blower fan high due to temperature using central main axis swell increment large, often occurs making fan bearing stuck because of thermal expansion.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and provide a kind of main shaft under high-temperature expansion not with the stuck interior circulation heating fan of bearing.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of interior circulation heating fan, comprise housing and be through the interior main shaft of described housing, middle part at described main shaft is provided with impeller, the two ends of main shaft are fixed on housing by bearing, it is characterized in that: in the joint of described main shaft two ends and bearing, axially offer two parallel slippage slots along main shaft, and two central angles corresponding to slippage slot are 120 °, and the fastening screw trip bolt of described bearing is positioned at described two slippage slots.
Compared with prior art, in the present invention, circulation heating fan arranges two slippage slots in the joint of main shaft and bearing, and the fastening screw trip bolt of bearing is fixed in slippage slot, during because of high-temperature expansion, main shaft is sliding deformation vertically when main shaft, and this moment, the fastening screw trip bolt of bearing is positioned at slippage slot, so the spindle deformation overtime, bearing is not offset, thoroughly solved the bearing stuck phenomenon, the method simple and convenient, cut and do not increase cost of production.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that main shaft of the present invention is in the generalized section of bearing installation place.
Wherein 1, housing, 2, main shaft, 3, impeller, 4, bearing, 5, cooling wind blade, 6, slippage slot.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1 and Figure 2, circulation heating fan in the present invention, comprise housing 1, main shaft 2, impeller 3, impeller 3 is fixedly mounted on the middle part of main shaft 2, and the two ends of main shaft 2 are fixed on housing 1 by bearing 4, in the joint of main shaft 2 two ends and bearing 4, axially offer two parallel slippage slots 6 along main shaft 2, and the central angle a of two slippage slot 6 correspondences is 120 °, and this slippage slot 6 width H are than the large 2mm of tight fixed bolt of bearing, and the degree of depth is 10mm.Fan bearing adopts UCP series bearing, and the fastening screw trip bolt of bearing is positioned at two slippage slots.Do like this can make blower fan main shaft in the hot thermal expansion slippage of high temperature along this fluted shaft to slippage, thoroughly solved the bearing stuck phenomenon.The method simple and convenient, cut and do not increase cost of production.
Claims (1)
1. circulation heating fan in a kind, comprise housing and be through the interior main shaft of described housing, middle part at described main shaft is provided with impeller, the two ends of main shaft are fixed on housing by bearing, described bearing is UCP series bearing, it is characterized in that: axially offer two parallel slippage slots along main shaft respectively in the joint of described main shaft two ends and each bearing, and two central angles corresponding to slippage slot are 120 °, and the fastening screw trip bolt of described bearing is positioned at described two slippage slots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010550071 CN102072190B (en) | 2010-11-19 | 2010-11-19 | Fan with internal circulation heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010550071 CN102072190B (en) | 2010-11-19 | 2010-11-19 | Fan with internal circulation heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102072190A CN102072190A (en) | 2011-05-25 |
| CN102072190B true CN102072190B (en) | 2013-06-26 |
Family
ID=44030875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010550071 Active CN102072190B (en) | 2010-11-19 | 2010-11-19 | Fan with internal circulation heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102072190B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2076906A (en) * | 1980-05-27 | 1981-12-09 | Reliance Electric Co | Seal for shaft bearings |
| JP2001208087A (en) * | 2000-01-27 | 2001-08-03 | Ntn Corp | Bearing device and its lock nut for bearing |
| CN201232713Y (en) * | 2008-06-27 | 2009-05-06 | 江苏苏新轴座有限公司 | Bearing seat with spherical outside surface with eccentric sleeve |
| CN201851388U (en) * | 2010-11-19 | 2011-06-01 | 苏州顶裕节能设备有限公司 | Internal circulation heating fan |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607317U (en) * | 1983-06-23 | 1985-01-19 | 石川島播磨重工業株式会社 | Anti-rotation device for bearing fixing nuts |
| US7306375B2 (en) * | 2005-11-02 | 2007-12-11 | Peer Bearing Company | Bearing locking collar retainer |
-
2010
- 2010-11-19 CN CN 201010550071 patent/CN102072190B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2076906A (en) * | 1980-05-27 | 1981-12-09 | Reliance Electric Co | Seal for shaft bearings |
| JP2001208087A (en) * | 2000-01-27 | 2001-08-03 | Ntn Corp | Bearing device and its lock nut for bearing |
| CN201232713Y (en) * | 2008-06-27 | 2009-05-06 | 江苏苏新轴座有限公司 | Bearing seat with spherical outside surface with eccentric sleeve |
| CN201851388U (en) * | 2010-11-19 | 2011-06-01 | 苏州顶裕节能设备有限公司 | Internal circulation heating fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102072190A (en) | 2011-05-25 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |