CN202937495U - Centrifugal fan combined sealing device - Google Patents
Centrifugal fan combined sealing device Download PDFInfo
- Publication number
- CN202937495U CN202937495U CN 201220557535 CN201220557535U CN202937495U CN 202937495 U CN202937495 U CN 202937495U CN 201220557535 CN201220557535 CN 201220557535 CN 201220557535 U CN201220557535 U CN 201220557535U CN 202937495 U CN202937495 U CN 202937495U
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- CN
- China
- Prior art keywords
- main shaft
- closed chamber
- gland
- grommet
- distribution
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a centrifugal fan combined sealing device, which includes a main shaft and a sealing device arranged outside the main shaft, and is characterized in that the sealing device includes a sleeve-shaped sealed chamber mounted outside the main shaft in a sleeving manner; a seal sleeve is mounted between the sealed chamber and the main shaft in a sleeving manner; a circular air distribution bush ring is assembled to the inner end, inside the sealed chamber, of the seal sleeve; an air-tight groove is arranged in the outer periphery of the air distribution bush ring; air holes communicated with the air-tight groove are arranged on the inner surface of the air distribution bush ring; an air-tight connecting pipe is arranged on the sealed chamber and at a position corresponding to the air distribution bush ring; the air-tight connecting pipe is communicated with the air-tight groove; and the seal sleeve is tightly fitted with the main shaft. The centrifugal fan combined sealing device has the benefits that engaging teeth are arranged on the outer wall of the main shaft, the main shaft is externally provided with the seal sleeve and forms air tightness together with the sealed chamber, the manufacture is simple, the cost is low, and the problem about poor sealing effect on dusty materials is solved.
Description
Technical field
The utility model relates to centrifuge assembly apparatus field, especially a kind of centrifugal blower combination sealing arrangement.
Background technique
The low pressure centrifugal fan is in series operation or be used for dust-laden or powder material when carrying, and the dust-laden powder will fly out in a large number along main shaft outer ring, the impeller back side, and moment is filled the air whole space, befouling environment.Usually the fan with low voltage axle head is to adopt the sealing of felt circle, this sealing be used for not the dust-laden material still can, when being used for the dust-laden material, leakage is very serious.Piston ring sealing and labyrinth seal need specialized factory customized, and be on the high side.This novel seal is got final product by the applying unit self-control, and has reached the effect of piston ring sealing, and fabricating cost is cheap.
The model utility content
The purpose of this utility model is to provide a kind ofly makes simple, with low cost and has overcome centrifugal blower combination sealing arrangement to dust-laden material sealing problem.
In order to complete above-mentioned purpose, the technical solution adopted in the utility model is:
a kind of centrifugal blower combination sealing arrangement, comprise main shaft and be arranged on the outer seal arrangement of main shaft, it is characterized in that: described seal arrangement comprises the sleeve shape closed chamber that is sleeved on outside main shaft, be set with stuffing box gland between closed chamber and main shaft, stuffing box gland is equipped with the distribution of gas grommet of ring in the inner of closed chamber, be provided with the sealing gland groove on the outer circumference of distribution of gas grommet, being provided with pore at the inner surface of distribution of gas grommet communicates with the sealing gland groove, described closed chamber is provided with sealing gland and takes in the position corresponding with the distribution of gas grommet, sealing gland is taken over and is communicated with the sealing gland groove, described stuffing box gland and main shaft fit tightly.
The outer wall of described main shaft is provided with tooth engaged, and the top section of tooth engaged is acute triangle.
The inwall of described closed chamber is stepped shaft, and described stuffing box gland and distribution of gas grommet ecto-entad are assemblied in successively in closed chamber and adapt with the stepped shaft inwall of closed chamber, leaves the sealing gland space at the inner terminal of closed chamber.
The pore of described distribution of gas grommet is a plurality of and is evenly distributed on the inner side surface of distribution of gas grommet.
Described stuffing box gland is soft elastic material, and stuffing box gland can be wound around with the tight interlock of tooth engaged after main shaft rotates.
The beneficial effects of the utility model are: on the outer wall of main shaft, tooth engaged is set, fills stuffing box gland and closed chamber and form sealing gland at spindle jacket, make simple, with low cost and overcome the problem poor to the sealing of dust-laden material.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of main shaft in Fig. 1.
Fig. 3 is the local enlarged diagram of A part in Fig. 1.
Fig. 4 is the structural representation of seal arrangement after the blower fan running in Fig. 3.
In figure, 1, main shaft, 2, closed chamber, 3, stuffing box gland, 4, the distribution of gas grommet, 5, the sealing gland groove, 6, pore, 7, sealing gland takes over, 8, tooth engaged, 9, the sealing gland space.
Embodiment
The utility model is a kind of centrifugal blower combination sealing arrangement, on the outer wall of main shaft, tooth engaged is set, and fills stuffing box gland and closed chamber and forms sealing gland at spindle jacket, makes simple, with low cost and has overcome the problem poor to the sealing of dust-laden material.
Below in conjunction with accompanying drawing, the utility model is described further.
specific embodiment, as shown in Fig. 1-4, a kind of centrifugal blower combination sealing arrangement, comprise main shaft 1 and be arranged on the outer seal arrangement of main shaft 1, the outer wall of described main shaft 1 is provided with tooth engaged 8, the top section of tooth engaged 8 is acute triangle, described seal arrangement comprises the sleeve shape closed chamber 2 that is sleeved on outside main shaft 1, be set with the stuffing box gland 3 that adopts the soft elastic material teflon to make between closed chamber 2 and main shaft 1, stuffing box gland 3 is equipped with the distribution of gas grommet 4 of ring in the inner of closed chamber 2, be provided with sealing gland groove 5 on the outer circumference of distribution of gas grommet 4, being provided with a plurality of pores 6 at the inner surface of distribution of gas grommet 4 is evenly distributed on the inner side surface of distribution of gas grommet 4 and communicates with sealing gland groove 5, described closed chamber 2 is provided with sealing gland and takes over 7 in the position corresponding with distribution of gas grommet 4, sealing gland is taken over 7 and is communicated with sealing gland groove 5, the inwall of described closed chamber 2 is stepped shaft, stuffing box gland 3 and distribution of gas grommet 4 ecto-entads are assemblied in successively in closed chamber 2 and adapt with the stepped shaft inwall of closed chamber 2, leave sealing gland space 9 at the inner terminal of closed chamber 2, take over 7 by sealing gland, sealing gland groove 5, pore 6, sealing gland space 9 forms complete sealing gland system, described stuffing box gland 3 fits tightly with main shaft 1, because stuffing box gland 3 is soft elastic material, stuffing box gland 3 can be wound around with the tight interlock of tooth engaged 8 after main shaft 1 rotates.The utility model arranges tooth engaged on the outer wall of main shaft, fill stuffing box gland and closed chamber and form sealing gland at spindle jacket, makes simple, with low cost and has overcome the problem poor to the sealing of dust-laden material.
Claims (5)
1. centrifugal blower combination sealing arrangement, comprise main shaft (1) and be arranged on the outer seal arrangement of main shaft (1), it is characterized in that: described seal arrangement comprises the sleeve shape closed chamber (2) that is sleeved on outside main shaft (1), be set with stuffing box gland (3) between closed chamber (2) and main shaft (1), stuffing box gland (3) is equipped with the distribution of gas grommet (4) of ring in the inner of closed chamber (2), be provided with sealing gland groove (5) on the outer circumference of distribution of gas grommet (4), being provided with pore (6) at the inner surface of distribution of gas grommet (4) communicates with sealing gland groove (5), described closed chamber (2) is provided with sealing gland and takes over (7) in the position corresponding with distribution of gas grommet (4), sealing gland is taken over (7) and is communicated with sealing gland groove (5), described stuffing box gland (3) fits tightly with main shaft (1).
2. a kind of centrifugal blower combination sealing arrangement according to claim 1, it is characterized in that: the outer wall of described main shaft (1) is provided with tooth engaged (8), and the top section of tooth engaged (8) is acute triangle.
3. a kind of centrifugal blower combination sealing arrangement according to claim 1, it is characterized in that: the inwall of described closed chamber (2) is stepped shaft, described stuffing box gland (3) and distribution of gas grommet (4) ecto-entad are assemblied in successively in closed chamber (2) and adapt with the stepped shaft inwall of closed chamber (2), leave sealing gland space (9) at the inner terminal of closed chamber (2).
4. a kind of centrifugal blower combination sealing arrangement according to claim 1 is characterized in that: the pore (6) of described distribution of gas grommet (4) is for a plurality of and be evenly distributed on the inner side surface of distribution of gas grommet (4).
5. a kind of centrifugal blower combination sealing arrangement according to claim 1 and 2, it is characterized in that: described stuffing box gland (3) is soft elastic material, stuffing box gland (3) after main shaft (1) rotates can with tooth engaged (8) closely interlock be wound around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557535 CN202937495U (en) | 2012-10-29 | 2012-10-29 | Centrifugal fan combined sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557535 CN202937495U (en) | 2012-10-29 | 2012-10-29 | Centrifugal fan combined sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937495U true CN202937495U (en) | 2013-05-15 |
Family
ID=48321737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220557535 Expired - Fee Related CN202937495U (en) | 2012-10-29 | 2012-10-29 | Centrifugal fan combined sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937495U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438021A (en) * | 2013-09-10 | 2013-12-11 | 唐山怡人鼓风机制造有限公司 | Labyrinth seal structure of air blower |
| CN103498807A (en) * | 2013-10-08 | 2014-01-08 | 河南省金太阳铸造有限公司 | Sealing structure of pulverizer fan |
| CN112228353A (en) * | 2020-09-16 | 2021-01-15 | 山东泉盈泵业有限公司 | Sewage pump seal assembly and sewage pump |
-
2012
- 2012-10-29 CN CN 201220557535 patent/CN202937495U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438021A (en) * | 2013-09-10 | 2013-12-11 | 唐山怡人鼓风机制造有限公司 | Labyrinth seal structure of air blower |
| CN103498807A (en) * | 2013-10-08 | 2014-01-08 | 河南省金太阳铸造有限公司 | Sealing structure of pulverizer fan |
| CN112228353A (en) * | 2020-09-16 | 2021-01-15 | 山东泉盈泵业有限公司 | Sewage pump seal assembly and sewage pump |
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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 |
Granted publication date: 20130515 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |