CN202707574U - Balancing device of rotation shaft of axial fan - Google Patents
Balancing device of rotation shaft of axial fan Download PDFInfo
- Publication number
- CN202707574U CN202707574U CN 201220263957 CN201220263957U CN202707574U CN 202707574 U CN202707574 U CN 202707574U CN 201220263957 CN201220263957 CN 201220263957 CN 201220263957 U CN201220263957 U CN 201220263957U CN 202707574 U CN202707574 U CN 202707574U
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- CN
- China
- Prior art keywords
- bearings
- bearing
- flabellum
- fan
- retainer plate
- 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 - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model discloses a balancing device of a rotation shaft of an axial fan. The balancing device comprises a fan casing and fan blades and is characterized in that two bearings are arranged on a core sleeve of the fan casing, and the bearings are in clearance fit with the core sleeve; a fan blade shaft is installed on the bearings and is in clearance fit with the bearings; a pressure spring A is arranged between the two bearings, and a pressure spring B is arranged between an upper bearing and the fan blades; a retainer ring is arranged at the tail of the fan blade shaft and is capable of preventing the fan blade shaft from moving out of the bearings; and positioning buckles are arranged at the top end and the bottom end of the core sleeve and limit the bearings in the core sleeve. According to the balancing device, by means of structures of clearance fit of the fan blades and spring compensating errors, problems of rocking, shaking and noises of the fan blades, which are caused by outside impacting and errors of shapes and position sizes of parts, are eliminated; and by means of the balancing device, rotation accuracy and balance of the fan blades are improved, qualities of products are guaranteed, and service life of the products is prolonged.
Description
Technical field
The utility model relates to the axial fan member, especially a kind of axial fan spindle balancing apparatus.
Background technique
At present, axial cooling fan is widely used in computer, communication product, photovoltaic, consumption electronic product, vehicle electronics, exchanger, medical equipment, heater is on the tradition such as air conditioner, frequency variator, automatic teller machine, automobile refrigerator, welding machine, electromagnetism stove, stereo set, environmental protection equipment, chiller plant or the Modern Scientific Instruments in Chinese.Because axial fan easily is subject to extraneous impact in various Environmental Conditions, make fan blade produce displacement or modification; In addition, because the error of the shape of component, position dimension etc., easily cause the flabellum energy imbalance that rotates, major embodiment is the rocking of flabellum, vibrations and noise etc., so not only affect the working effect of axial fan, and reduced the working life of axial fan.
The model utility content
The purpose of this utility model provides a kind of axial fan spindle balancing apparatus that can keep flabellum balance working state when being subject to ectocine.
For achieving the above object, the technological scheme that the utility model adopts is: a kind of axial fan spindle balancing apparatus, comprise: blower-casting, flabellum is characterized in that: the core retainer plate at blower-casting is provided with two bearings, is Spielpassung between bearing and the core retainer plate; The flabellum axle is installed on the bearing, is Spielpassung between flabellum axle and the bearing; Between two bearings, be provided with pressure spring A, between upper bearing (metal) and flabellum, be provided with pressure spring B; Flabellum axle afterbody is provided with back-up ring, and this back-up ring prevents the flabellum axle bearing of scurrying out; Top and the bottom of described core retainer plate are provided with locating fastener, and this locating fastener is limited in bearing in the core retainer plate.
Preferably, the matching gap between the outer ring of described bearing, inner ring and core retainer plate, the flabellum axle is 0.01mm.
Preferably, described bearing is rolling bearing.
Preferably, the locating fastener of described core retainer plate bottom is the hole jump ring.
After the utility model adopts said structure, owing to having adopted the structure of flabellum Spielpassung and spring-compensating error, eliminated because problems such as the rocking of the flabellum that the error of the shape of extraneous impact and component, position dimension etc. causes, vibrations and noises, rotation precision and the balance of flabellum have been improved, guarantee quality of product, prolonged the working life of product.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is explosive view of the present utility model.
Fig. 2 is assembling schematic diagram of the present utility model
Among the figure: 1, blower-casting, 11, core retainer plate, 2, flabellum, 21, the flabellum axle, 3, bearing, 4, pressure spring A, 5, pressure spring B, 6, locating fastener, 7, back-up ring.
Embodiment
As shown in Figure 1 and Figure 2, a kind of axial fan spindle balancing apparatus comprises: blower-casting 1, flabellum 2 is characterized in that: the core retainer plate 11 at blower-casting 1 is provided with two bearings 3, is Spielpassung between bearing 3 and the core retainer plate 11; Flabellum axle 21 is installed on the bearing 3, is Spielpassung between flabellum axle 21 and the bearing 3; Between two bearings 3, be provided with pressure spring A4, between upper bearing (metal) 3 and flabellum 2, be provided with pressure spring B5; Flabellum axle 21 afterbodys are provided with back-up ring 7, and this back-up ring 7 prevents flabellum axle 21 bearing 3 of scurrying out; The top of described core retainer plate 11 and bottom are provided with locating fastener 6, and this locating fastener 6 is limited in bearing 3 in the core retainer plate 11.
Preferably, the matching gap between the outer ring of described bearing 3, inner ring and core retainer plate 11, the flabellum axle 21 is 0.01mm.
Preferably, described bearing 3 is rolling bearing.
Preferably, the locating fastener 6 of described core retainer plate 11 bottoms is the hole jump ring.
Working principle: bearing 3 with the Spielpassung that is connected to of core retainer plate 11, flabellum axle 21, in axial fan work, stressing conditions when pressure spring A4 and pressure spring B5 rotate according to flabellum 2 is finely tuned the relative position of bearing 3 and flabellum axle 21, make bearing 3 in core retainer plate 11, carry out relative sliding, make flabellum axle 21 carry out relative sliding at bearing 3, thereby overcome that the flabellum that causes owing to reasons such as Component error, assembly error, work discontinuity rocks, the phenomenon such as vibrations and noise.
The above is preferred implementation of the present utility model; certainly can not limit with this interest field of the utility model; should be understood that; for those skilled in the art; the technical solution of the utility model is made amendment or is equal to replacement, do not break away from the protection domain of technical solutions of the utility model.
Claims (4)
1. axial fan spindle balancing apparatus, comprising: blower-casting (1), flabellum (2) is characterized in that: the core retainer plate (11) in blower-casting (1) is provided with two bearings (3), is Spielpassung between bearing (3) and the core retainer plate (11); Flabellum axle (21) is installed on the bearing (3), is Spielpassung between flabellum axle (21) and the bearing (3); Between two bearings (3), be provided with pressure spring A(4), between upper bearing (metal) (3) and flabellum (2), be provided with pressure spring B(5); Flabellum axle (21) afterbody is provided with back-up ring (7), and this back-up ring (7) prevents flabellum axle (21) bearing (3) of scurrying out; The top of described core retainer plate (11) and bottom are provided with locating fastener (6), and this locating fastener (6) is limited in bearing (3) in the core retainer plate (11).
2. axial fan spindle balancing apparatus according to claim 1, it is characterized in that: outer ring, inner ring and the core retainer plate (11) of described bearing (3), the matching gap between the flabellum axle (21) are 0.01mm.
According to claim 1 and 2 in the described axial fan spindle balancing apparatus of arbitrary claim, it is characterized in that: described bearing (3) is rolling bearing.
4. axial fan spindle balancing apparatus according to claim 1, it is characterized in that: the locating fastener (6) of described core retainer plate (11) bottom is the hole jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263957 CN202707574U (en) | 2012-06-06 | 2012-06-06 | Balancing device of rotation shaft of axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263957 CN202707574U (en) | 2012-06-06 | 2012-06-06 | Balancing device of rotation shaft of axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707574U true CN202707574U (en) | 2013-01-30 |
Family
ID=47587881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263957 Expired - Fee Related CN202707574U (en) | 2012-06-06 | 2012-06-06 | Balancing device of rotation shaft of axial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650298A (en) * | 2012-06-06 | 2012-08-29 | 李辉 | Rotating shaft balance device of axial flow fan |
-
2012
- 2012-06-06 CN CN 201220263957 patent/CN202707574U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650298A (en) * | 2012-06-06 | 2012-08-29 | 李辉 | Rotating shaft balance device of axial flow fan |
| CN102650298B (en) * | 2012-06-06 | 2015-04-15 | 李辉 | Rotating shaft balance device of axial flow fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20170606 |