CN201747665U - Shaft end moving seal of air intake chamber of large-size ventilating machine - Google Patents
Shaft end moving seal of air intake chamber of large-size ventilating machine Download PDFInfo
- Publication number
- CN201747665U CN201747665U CN2010205107604U CN201020510760U CN201747665U CN 201747665 U CN201747665 U CN 201747665U CN 2010205107604 U CN2010205107604 U CN 2010205107604U CN 201020510760 U CN201020510760 U CN 201020510760U CN 201747665 U CN201747665 U CN 201747665U
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- Prior art keywords
- seal ring
- sealing
- ring
- main shaft
- stationary seal
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims description 52
- 208000002925 dental caries Diseases 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a shaft end moving seal of an air intake chamber of a large-size ventilating machine. The shaft end moving seal comprises an inner stationary seal ring and a planar disk-shaped outer stationary seal ring, wherein the inner stationary seal ring and the planar disk-shaped outer stationary seal ring are superposed to form a cavity, the inner stationary seal ring is embedded on the shaft hole of the casing of the air intake chamber in a surrounding manner, the blower main shaft passes through the cavity defined by the inner stationary seal ring and the planar disk-shaped outer stationary seal ring, a moving seal ring is positioned inside the cavity defined by the inner stationary seal ring and the planar disk-shaped outer stationary seal ring and formed by combination of two semi-spherical bodies that are built up by spring rings, the inner circle of the moving seal ring is connected with the blower main shaft, a first gap is formed between the moving seal ring and the inner stationary seal ring, a second gap is formed between the moving seal ring and the outer stationary seal ring, and the moving seal ring rotates along with the blower main shaft. When the gap from the inside diameter of the inner stationary seal ring to the blower main shaft is not less than the deviation of the blower main shaft relative to the shaft hole of the casing of the air intake chamber, and the gap between the moving seal ring and the inner stationary seal ring is not less than the deviation of the blower main shaft relative to the shaft hole of the casing of the air intake chamber, and the seal can work effectively for a long time.
Description
Technical field
The utility model belongs to the ventilator technical field, is specifically related to a kind of large-scale ventilator suction chamber shaft end seal.
Background technique
Large-scale ventilator is because the needs of structure all are provided with suction chamber, and main shaft must pass from suction chamber, because the needs that main shaft rotates, the housing of suction chamber has certain clearance with axle, huge housing is a welding structural element, so it is very little that the gap can't be realized, and high negative is arranged in the suction chamber, thereby be the leakage-preventing simple axle envelope of being furnished with usually, but be limited to the changeable odjective cause of this place's size, the actual effect of axle envelope is all relatively poor, and leakage is how very serious, influences fan efficiency.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of large-scale ventilator suction chamber shaft end seal, can when axle and suction chamber casing axis hole have very big deviation, still can realize good sealing, have the high advantage of fan efficiency.
In order to achieve the above object, the technological scheme that the utility model adopted is:
A kind of large-scale ventilator suction chamber shaft end seal, comprise that the plate-like of wearing prominent edge seals ring 1 decided at the higher level but not officially announced, sealing ring 1 decided at the higher level but not officially announced and plate-like plane sealing encircles 2 outward surely and stacks the back and form a cavity, the one side that seals the prominent edge of band of ring 1 decided at the higher level but not officially announced is pressed on the axis hole of suction chamber shell 6, blower fan main shaft 3 passes sealing ring 1 decided at the higher level but not officially announced and outer 2 cavitys that form that encircle surely of sealing, bind round the sealing rotating ring 5 that two semicircles form by cluster spring ring 4 and be positioned at sealing ring 1 decided at the higher level but not officially announced and outer 2 cavitys that form that encircle surely of sealing, the inner headed face and the blower fan main shaft 3 of sealing rotating ring 5 join, there is the gap in sealing rotating ring 5 with sealing ring 1 decided at the higher level but not officially announced, encircles 2 surely outside sealing rotating ring 5 and the sealing and has the gap.
Working principle of the present utility model is:
Sealing rotating ring 5 rotates with blower fan main shaft 3, as long as the internal diameter of sealing ring 1 decided at the higher level but not officially announced and the gap of blower fan main shaft 3 are not less than the deviation of the axis hole of blower fan main shaft 1 and suction chamber shell 6, and after the gap of sealing rotating ring 5 and sealing ring 1 decided at the higher level but not officially announced also is not less than the deviation of blower fan main shaft 1 and the axis hole of suction chamber shell 6, effectively long-time running of sealing.
The beneficial effects of the utility model are: when the axis hole of blower fan main shaft and suction chamber shell had very big deviation, sealing still can realize good sealing.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description.
With reference to accompanying drawing, a kind of large-scale ventilator suction chamber shaft end seal, comprise that the plate-like of wearing prominent edge seals ring 1 decided at the higher level but not officially announced, sealing ring 1 decided at the higher level but not officially announced and plate-like plane sealing encircles 2 outward surely and stacks the back and form a cavity, the one side that seals the prominent edge of band of ring 1 decided at the higher level but not officially announced is pressed on the axis hole of suction chamber shell 6, blower fan main shaft 3 passes sealing ring 1 decided at the higher level but not officially announced and outer 2 cavitys that form that encircle surely of sealing, bind round the sealing rotating ring 5 that two semicircles form by cluster spring ring 4 and be positioned at sealing ring 1 decided at the higher level but not officially announced and outer 2 cavitys that form that encircle surely of sealing, the inner headed face and the blower fan main shaft 3 of sealing rotating ring 5 join, there is the gap in sealing rotating ring 5 with sealing ring 1 decided at the higher level but not officially announced, encircles 2 surely outside sealing rotating ring 5 and the sealing and has the gap.
Working principle of the present utility model is:
Sealing rotating ring 5 rotates with blower fan main shaft 3, as long as the internal diameter of sealing ring 1 decided at the higher level but not officially announced and the gap of blower fan main shaft 3 are not less than the deviation of the axis hole of blower fan main shaft 1 and suction chamber shell 6, and after the gap of sealing rotating ring 5 and sealing ring 1 decided at the higher level but not officially announced also is not less than the deviation of blower fan main shaft 1 and the axis hole of suction chamber shell 6, effectively long-time running of sealing.
In the accompanying drawing: 1 is fixed ring in the sealing; 2 are the outer fixed ring of sealing; 3 is blower fan main shaft; 4 is the cluster spring ring; 5 is moving sealing ring; 6 is the inlet plenum shell.
Claims (1)
1. one kind large-scale ventilator suction chamber shaft end seal, it is characterized in that, comprise that the plate-like of wearing prominent edge seals ring decided at the higher level but not officially announced (1), seal ring decided at the higher level but not officially announced (1) and plate-like plane sealing outward surely ring (2) stack the back and form a cavity, the one side that seals the prominent edge of band of ring decided at the higher level but not officially announced (1) is pressed on the axis hole of suction chamber shell (6), blower fan main shaft (3) passes sealing ring decided at the higher level but not officially announced (1) and the outer fixed cavity that (2) form that encircles of sealing, bind round the sealing rotating ring (5) that two semicircles form by cluster spring ring (4) and be positioned at sealing ring decided at the higher level but not officially announced (1) and the outer fixed cavity that (2) form that encircles of sealing, the inner headed face and the blower fan main shaft (3) of sealing rotating ring (5) join, there are the gap in sealing rotating ring (5) and sealing ring decided at the higher level but not officially announced (1), and there are the gap in sealing rotating ring (5) and the outer fixed ring of sealing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205107604U CN201747665U (en) | 2010-08-30 | 2010-08-30 | Shaft end moving seal of air intake chamber of large-size ventilating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205107604U CN201747665U (en) | 2010-08-30 | 2010-08-30 | Shaft end moving seal of air intake chamber of large-size ventilating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747665U true CN201747665U (en) | 2011-02-16 |
Family
ID=43582344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205107604U Expired - Fee Related CN201747665U (en) | 2010-08-30 | 2010-08-30 | Shaft end moving seal of air intake chamber of large-size ventilating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707638A (en) * | 2019-01-30 | 2019-05-03 | 青岛科技大学 | A small and micro centrifugal compressor with integrated bearing and seal |
-
2010
- 2010-08-30 CN CN2010205107604U patent/CN201747665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707638A (en) * | 2019-01-30 | 2019-05-03 | 青岛科技大学 | A small and micro centrifugal compressor with integrated bearing and seal |
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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: 20110216 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |