CN201874876U - Sealing structure of fan shaft - Google Patents
Sealing structure of fan shaft Download PDFInfo
- Publication number
- CN201874876U CN201874876U CN2010206141053U CN201020614105U CN201874876U CN 201874876 U CN201874876 U CN 201874876U CN 2010206141053 U CN2010206141053 U CN 2010206141053U CN 201020614105 U CN201020614105 U CN 201020614105U CN 201874876 U CN201874876 U CN 201874876U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- shell
- sealing ring
- blower fan
- seal ring
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a sealing structure of a fan shaft, which comprises a shell and a fan main shaft arranged in the shell, and is characterized in that: a sealing ring is arranged on the fan main shaft; the sealing ring has a V-shaped section and an outward opening; one edge of the V-shaped sealing ring is in close contact with the shell; and a gap is arranged between the upper end face of the other edge of the V-shaped sealing ring and the shell. Compared with the prior art, as the V-shaped sealing ring is arranged between the fan main shaft and the shell and has an outward opening, and the gap is arranged between the upper end face of the V-shaped sealing ring and the shell, an air seal is formed between the inside and outside of the opened sealing ring when the main shaft rotates at a high speed, so that the sealing performance between the main shaft and the shell is remarkably enhanced, and the phenomena of powder leakage and high-temperature bonding are completely prevented.
Description
Technical field
The utility model relates to the centrifugal blower technical field, specifically is a kind of axle sealing structure that is applied to centrifugal blower.
Background technique
Main shaft has a gap with enclosure wall after by casing, adopts the soft rubbing contact sealing of filler and axle usually, easily produces high temperature, and for carrying the molding powder machine blower fan, molding powder can bond at this, and shorten working life greatly.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, prevents that powder from leaking and the blower fan axle sealing structure of high temperature bond phenomenon and provide a kind of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of blower fan axle sealing structure, comprise casing and be arranged on the interior blower fan main shaft of casing, it is characterized in that: described blower fan main shaft is provided with a seal ring, the sectional shape of sealing circle is that V-type and opening are outside, a limit of this V-shaped seal ring closely contacts with casing, leaves a gap between the another side upper-end surface of V-shaped seal ring and housing.
Offer a circular groove on described blower fan main shaft, described seal ring is arranged in this circular groove.
Compared with prior art, the utility model is provided with V-shaped seal ring between blower fan main shaft and housing, and opening is outside, because also leave a gap between the upper-end surface of V-shaped seal ring and the housing, so when the main shaft high speed rotating, between inside and outside the seal ring of opening, form a sealing gland, make that the sealability between main shaft and the housing significantly strengthens, prevent that thoroughly powder from leaking and the high temperature bond phenomenon.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein 1, casing, 2, blower fan main shaft, 3, seal ring, 4, the gap, 5, gas-tpe fitting.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, as shown in Figure 1, a kind of blower fan axle sealing structure, comprise casing 1 and be arranged on blower fan main shaft 2 in the casing 1, on blower fan main shaft 2, offer a circular groove, in circular groove, be provided with a seal ring 3 that closely contacts with casing 1, the sectional shape of sealing circle 3 is that V-type and opening are outside, between the upper-end surface of V RunddichtringO and housing, also leave a gap 4, also be provided with a gas-tpe fitting 5 in casing 1, this gas-tpe fitting 5 is communicated with blower fan main shaft 2.
Claims (2)
1. blower fan axle sealing structure, comprise casing and be arranged on the interior blower fan main shaft of casing, it is characterized in that: described blower fan main shaft is provided with a seal ring, the sectional shape of sealing circle is that V-type and opening are outside, a limit of this V-shaped seal ring closely contacts with casing, leaves a gap between the another side upper-end surface of V-shaped seal ring and housing.
2. blower fan axle sealing structure according to claim 1 is characterized in that: offer a circular groove on described blower fan main shaft, described seal ring is arranged in this circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141053U CN201874876U (en) | 2010-11-19 | 2010-11-19 | Sealing structure of fan shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141053U CN201874876U (en) | 2010-11-19 | 2010-11-19 | Sealing structure of fan shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874876U true CN201874876U (en) | 2011-06-22 |
Family
ID=44162794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206141053U Expired - Lifetime CN201874876U (en) | 2010-11-19 | 2010-11-19 | Sealing structure of fan shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072191A (en) * | 2010-11-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Sealing structure of shaft of fan |
-
2010
- 2010-11-19 CN CN2010206141053U patent/CN201874876U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072191A (en) * | 2010-11-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Sealing structure of shaft of fan |
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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 |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |