CN215633945U - Sealing structure of fan shell and fan shaft - Google Patents
Sealing structure of fan shell and fan shaft Download PDFInfo
- Publication number
- CN215633945U CN215633945U CN202121387915.4U CN202121387915U CN215633945U CN 215633945 U CN215633945 U CN 215633945U CN 202121387915 U CN202121387915 U CN 202121387915U CN 215633945 U CN215633945 U CN 215633945U
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- CN
- China
- Prior art keywords
- fan
- sealing
- adjusting plate
- shell
- annular
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- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 241000886569 Cyprogenia stegaria Species 0.000 title claims abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the field of centrifugal fans, in particular to a sealing structure of a fan shell and a fan shaft. The fan shaft is sleeved with an adjusting plate, the adjusting plate is fixedly arranged on the fan shell, the fan shaft further comprises an annular sealing pressing plate connected with the fan shell and the adjusting plate through bolts, a sealing element is arranged on the inner circle of the annular sealing pressing plate, and the sealing element is in interference fit with the fan shaft. The utility model has simple structure and convenient maintenance, shortens the maintenance time, reduces the labor intensity and improves the working efficiency.
Description
Technical Field
The utility model relates to the field of centrifugal fans, in particular to a sealing structure of a fan shell and a fan shaft.
Background
At present, the shaft seal of the centrifugal fan mostly adopts sealing elements such as packing seal or framework oil seal and the like; as shown in fig. 1, the original design of the fan is that the shaft end of the fan is sealed into an asbestos plate sandwiched between a housing flange and a four-flat Y4-2 x 73no29.5f type, and because the sealing element is fixed on the housing and the sealing element and the main shaft move relatively, the sealing element is easy to wear when the equipment continuously operates for a long time, thereby causing air leakage and needing frequent shutdown treatment; not only the labor intensity is high, but also the continuous normal production of enterprises is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems, and provides the sealing structure of the fan shell and the fan shaft, which has the advantages of simple structure, convenience in maintenance, shortened maintenance time, reduced labor intensity and improved working efficiency.
The utility model solves the problems and adopts the technical scheme that:
the utility model provides a seal structure of fan casing and fan axle, includes fan casing and fan axle, and the cover is equipped with the adjusting plate on the fan axle, and the adjusting plate is fixed to be established on the fan casing, still includes the annular seal clamp plate of being connected through bolt and fan casing and adjusting plate, is equipped with the sealing member on the interior circle of annular seal clamp plate, sealing member and fan axle interference fit.
Compared with the prior art, the utility model adopting the technical scheme has the outstanding characteristics that:
the centrifugal fan sealing device is simple in structure, the sealing pressure plate is installed on the adjusting plate fixed on the shell through the bolts, the sealing element is clamped between the sealing pressure plate and the adjusting plate, the sealing effect is guaranteed through the sealing element, when the centrifugal fan continuously operates for a long time and the sealing element is worn, the sealing pressure plate is detached, the sealing element is replaced, the maintenance is convenient, the maintenance time is shortened, the labor intensity is reduced, and the working efficiency is improved.
Preferably, the further technical scheme of the utility model is as follows:
an annular flange is arranged on the inner circle of the annular sealing pressure plate, an annular groove is formed between the annular flange and the adjusting plate, and the sealing element is arranged in the annular groove; make the sealing member joint in annular groove through foretell structure setting, be convenient for the change of sealing member when guaranteeing sealed effect.
Drawings
FIG. 1 is a schematic diagram of a prior art configuration of the present invention;
FIG. 2 is a schematic diagram of a front view configuration of an embodiment of the present invention;
in the figure: 1. a fan housing; 2. a fan shaft; 3. an adjustment plate; 4. an annular sealing pressure plate; 5. a seal member; 6. asbestos board.
Detailed Description
The utility model will be better understood by the following description of embodiments thereof, but the applicant's specific embodiments are not intended to limit the utility model to the particular embodiments shown, and any changes in the definition of parts or features and/or in the overall structure, not essential changes, are intended to define the scope of the utility model.
Referring to fig. 2, the technical scheme of the utility model is as follows:
a sealing structure of a fan shell and a fan shaft comprises a fan shell 1, a fan shaft 2, an adjusting plate 3, an annular sealing pressing plate 4 and a sealing element 5, wherein the adjusting plate 3 is of an annular structure, the adjusting plate 3 is made of a 10mm steel plate, the adjusting plate 3 is sleeved on the fan shaft 2 and welded with the fan shell 1, the distance between the adjusting plate 3 and the fan shaft 2 is 10mm, the adjusting plate 3 can adjust the radial clearance between the fan shell 1 and the fan shaft 2 to be uniform when the fan normally operates, the annular sealing pressing plate 4 is fixed on the fan shell 1 and the adjusting plate 3 through bolts, an annular flange is arranged on the inner circle of the annular sealing pressing plate 4, an annular groove is formed between the annular flange and the adjusting plate 3, the sealing element 5 is clamped in the annular groove, the sealing element 5 is convenient to replace while the sealing effect is ensured, the sealing element 5 adopts a graphite packing of 20 mm x 20 mm, graphite packing and fan shaft 2 interference fit.
The centrifugal fan sealing device is simple in structure, the sealing pressure plate is arranged on the adjusting plate 3 fixed on the shell through the bolts, the sealing element 5 is clamped between the sealing pressure plate and the adjusting plate 3, the sealing effect is guaranteed through the sealing element 5, when the sealing element 5 is worn due to long-time continuous operation of the centrifugal fan, the sealing pressure plate is detached, and the sealing element 5 is replaced, so that the centrifugal fan sealing device is convenient to maintain, the maintenance time is shortened, the labor intensity is reduced, and the working efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (2)
1. The utility model provides a seal structure of fan casing and fan axle, includes fan casing and fan axle, its characterized in that: the fan shaft is sleeved with an adjusting plate, the adjusting plate is fixedly arranged on the fan shell, the fan shaft further comprises an annular sealing pressing plate connected with the fan shell and the adjusting plate through bolts, a sealing element is arranged on the inner circle of the annular sealing pressing plate, and the sealing element is in interference fit with the fan shaft.
2. The seal structure of fan casing and fan axle of claim 1, characterized in that: an annular flange is arranged on the inner circle of the annular sealing pressure plate, an annular groove is formed between the annular flange and the adjusting plate, and the sealing element is arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121387915.4U CN215633945U (en) | 2021-06-22 | 2021-06-22 | Sealing structure of fan shell and fan shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121387915.4U CN215633945U (en) | 2021-06-22 | 2021-06-22 | Sealing structure of fan shell and fan shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215633945U true CN215633945U (en) | 2022-01-25 |
Family
ID=79944498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121387915.4U Expired - Fee Related CN215633945U (en) | 2021-06-22 | 2021-06-22 | Sealing structure of fan shell and fan shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215633945U (en) |
-
2021
- 2021-06-22 CN CN202121387915.4U patent/CN215633945U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |