CN203257725U - Heat-radiating fan with fluid dynamic bearing structure - Google Patents
Heat-radiating fan with fluid dynamic bearing structure Download PDFInfo
- Publication number
- CN203257725U CN203257725U CN 201320290928 CN201320290928U CN203257725U CN 203257725 U CN203257725 U CN 203257725U CN 201320290928 CN201320290928 CN 201320290928 CN 201320290928 U CN201320290928 U CN 201320290928U CN 203257725 U CN203257725 U CN 203257725U
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- CN
- China
- Prior art keywords
- fluid dynamic
- bearing structure
- heat
- radiating fan
- groove
- 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 discloses a heat-radiating fan with a fluid dynamic bearing structure. The heat-radiating fan comprises a bearing and a shaft core which rotate relatively, wherein reversed V-shaped grooves arranged at intervals are formed in the radial direction of the outer wall of the shaft core; the grooves are filled with lubricating fluids; the depth of each groove is gradually reduced from a meeting point to two sides. By utilizing the heat-radiating fan, the vibration and shock of the shaft core are reduced, the service life of a product is prolonged, and a good effect of preventing oil leakage is achieved.
Description
Technical field
The utility model relates to a kind of DC radiation fan, more particularly, and especially a kind of radiation fan with fluid dynamic pressure shaft bearing structure.
Background technique
Existing DC radiation fan generally is installing ball bearing or oil-impregnated bearing in axle sleeve, the spin friction of ball bearing reason metal construction, and its abrasion are large, and noise is large, and has short shortcoming in working life; Though and oil-impregnated bearing can provide contained lubricant oil own and reduce abrasion to the axle core, lubricant oil easily runs off under the fan long-term operation, and reduces aforementioned effect.Therefore, how to solve the above problems, be problem demanding prompt solution.
The model utility content
The purpose of this utility model be to provide a kind of wearing and tearing less, the radiation fan with fluid dynamic pressure shaft bearing structure of long service life.
The technical solution of the utility model is: a kind of radiation fan with fluid dynamic pressure shaft bearing structure, comprise in relative rotation bearing and axle core, wherein, along the spaced man type groove of radially being provided with of axle outer core, be filled with lubricating fluid in the groove, the degree of depth of this groove is successively decreased to both sides successively from joint.
Above-mentioned a kind of radiation fan with fluid dynamic pressure shaft bearing structure, described man type groove are two groups and lay respectively at the up and down two ends of axle outer core.
Above-mentioned a kind of radiation fan with fluid dynamic pressure shaft bearing structure, described up and down two ends refer to each zone of 1/3rd of height.
The utility model adopts above-mentioned structure, by along the spaced man type groove of radially being provided with of bearing inner wall or axle outer core, lubricating fluid is under the rotation of axle core, flow to joint from man type groove both sides, setting up larger pressure at joint rotates with the back shaft core, reduce vibrations and impact to the axle core during rotation, and realized the technique effect without wearing and tearing, thus the life-span of having improved product; Successively decrease successively to both sides from joint by the degree of depth that groove is set, make the oil storage space on groove both sides less, the fluid of groove joint is difficult for revealing from the groove both sides, makes structure have good leak preventing effect.
Description of drawings
Fig. 1 is overall structure schematic representation of the present utility model;
Structural representation when Fig. 2 is implementation of the present utility model.
Among the figure: 1 is bearing, and 2 is the axle core, and 3 is the man type groove, and 4 is lubricating fluid.
Embodiment
As depicted in figs. 1 and 2, a kind of radiation fan with fluid dynamic pressure shaft bearing structure, comprise in relative rotation bearing 1 and axle core 2, along the spaced man type groove 3 of radially being provided with of axle core 2 outer walls, be filled with lubricating fluid 4 in the groove 3, the degree of depth of this groove 3 is successively decreased to both sides successively from joint; Man type groove 3 is two groups and lays respectively at the up and down two ends of axle core 2 outer walls; Two ends refer to each zone of 1/3rd of height up and down.
When 2 rotation of axle core, lubricating fluid 4 flows to central intersection from the up and down both sides of man type groove 3, set up larger pressure in central intersection, push axle core 2, axle core 2 is separated with bearing 1, and be in comparatively stable operating condition, and effectively reduced friction, prolonged the working life of product.
Claims (3)
1. radiation fan with fluid dynamic pressure shaft bearing structure, comprise in relative rotation bearing (1) and axle core (2), it is characterized in that: radially be provided with spaced man type groove (3) along axle core (2) outer wall, be filled with lubricating fluid (4) in the groove (3), the degree of depth of this groove (3) is successively decreased to both sides successively from joint.
2. a kind of radiation fan with fluid dynamic pressure shaft bearing structure according to claim 1 is characterized in that: described man type groove (3) is two groups and lays respectively at the up and down two ends of axle core (2) outer wall.
3. a kind of radiation fan with fluid dynamic pressure shaft bearing structure according to claim 2 is characterized in that: described up and down two ends refer to each zone of 1/3rd of height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290928 CN203257725U (en) | 2013-05-27 | 2013-05-27 | Heat-radiating fan with fluid dynamic bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320290928 CN203257725U (en) | 2013-05-27 | 2013-05-27 | Heat-radiating fan with fluid dynamic bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257725U true CN203257725U (en) | 2013-10-30 |
Family
ID=49470294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320290928 Expired - Lifetime CN203257725U (en) | 2013-05-27 | 2013-05-27 | Heat-radiating fan with fluid dynamic bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257725U (en) |
-
2013
- 2013-05-27 CN CN 201320290928 patent/CN203257725U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |