CN204942057U - Blower fan non-contact mechanical seal structure - Google Patents
Blower fan non-contact mechanical seal structure Download PDFInfo
- Publication number
- CN204942057U CN204942057U CN201520714123.1U CN201520714123U CN204942057U CN 204942057 U CN204942057 U CN 204942057U CN 201520714123 U CN201520714123 U CN 201520714123U CN 204942057 U CN204942057 U CN 204942057U
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- CN
- China
- Prior art keywords
- seal
- end cap
- bearing
- main shaft
- blower fan
- 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 - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to centrifugal blower field, is specifically related to a kind of blower fan non-contact mechanical seal structure.A kind of blower fan non-contact mechanical seal structure, comprise main shaft, be arranged on the bearing unit on main shaft, described bearing unit comprises bearing and bearing housing, bearing box end cap, described main shaft is also provided with seal, the face that described seal is adjacent with bearing box end cap is the conical surface, and the tapering of this conical surface is consistent with the tapering of bearing box end cap, leaves gap between described seal and bearing box end cap.The utility model adopts non-contact mechanical seal, by two interior hexagonal Cock screws, seal is arranged on main shaft, consistent with the seal groove tapering inside end cap, and keep certain interval, rotated by main shaft, drive seal to rotate, lubricant oil got rid of in the oil-return groove to end cap by centrifugal force, thus flow back to bearing housing, avoid leakage of oil; On the other hand, seal is steel part, can not there is wear problem, also ensure that oil-proof for a long time.
Description
Technical field
The utility model belongs to centrifugal blower field, is specifically related to a kind of blower fan non-contact mechanical seal structure.
Background technique
Centrifugal fan working principle is identical with centrifugal pump, and structure is Datong District little Yi also.Primarily of snail row casing and mutliblade impeller composition.Oil in centrifugal blower leaves in bearing housing, lubricates when rotating for centrifugal blower, and for preventing oil leakage, usual bearing housing is provided with sealing configuration.Bearing box oil leakage problem, it is a persistent ailment of puzzlement blower fan producer always, the seal arrangement of existing domestic employing, being realized by mounting framework oil sealing outside end cap, is there will not be leakage oil condition in this way short time, because outside framework oil seal is very high to the roughness requirements of main shaft, if do not reach requirement, running time has been grown, and the lip of outside framework oil seal can be ground away, so gap can become large, just there will be the situation of leakage of oil.
Model utility content
For above-mentioned prior art, the purpose of this utility model is to provide a kind of blower fan non-contact mechanical seal structure, prevents the problem of bearing box oil leakage by arranging seal.For realizing this object, the utility model adopts following technological scheme:
A kind of blower fan non-contact mechanical seal structure, comprise main shaft, be arranged on the bearing unit on main shaft, described bearing unit comprises bearing and bearing housing, bearing box end cap, described main shaft is also provided with seal, the face that described seal is adjacent with bearing box end cap is the conical surface, and the tapering of this conical surface is consistent with the tapering of bearing box end cap, leaves gap between described seal and bearing box end cap.
Further, described seal by screw locking on main shaft.
Further, described screw is interior hexagonal Cock screw.
Further, the gap between described seal and bearing box end cap is 1.5-2mm.This gap crosses conference leakage of oil, and too small installation is inconvenient, may follow the grazing of axle bed end cap.
Further, the cross section of described seal is T-shaped, and first end is adjacent with bearing box end cap.
Further, described bearing unit is fixed by round nut and thrust washer.
Further, described seal is steel part.Steel part wear resistance is good, can not produce wearing and tearing in rotation process.
To compare prior art, the utility model adopts non-contact mechanical seal, by two interior hexagonal Cock screws, seal is arranged on main shaft, consistent with the seal groove tapering inside end cap, and keep certain interval, rotated by main shaft, drive seal rotates, lubricant oil got rid of in the oil-return groove to end cap by centrifugal force, thus flow back to bearing housing, avoid leakage of oil; On the other hand, seal is steel part, can not there is wear problem, also ensure that oil-proof for a long time.
Accompanying drawing explanation
Fig. 1 is the utility model cross-sectional view;
Fig. 2 is sealed body structure schematic diagram;
In figure, 1-main shaft, 2-bearing, 3-bearing housing, 4-bearing box end cap, 5-seal, 51-first end, 6-screw, 7-round nut, 8-thrust washer.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is further described.
A kind of blower fan non-contact mechanical seal structure, comprise main shaft 1, be arranged on the bearing unit on main shaft 1, described bearing unit comprises bearing 2 and bearing housing 3, bearing box end cap 4, bearing unit is fixed by round nut 7 and thrust washer 8, described main shaft 1 is installed with steel part seal 5 by screw 6, the face that described seal 5 is adjacent with bearing box end cap is the conical surface, the tapering of this conical surface is consistent with the tapering of bearing box end cap 4, leaves the gap of 1.5-2mm between described seal 5 and bearing box end cap 4.
Described screw 6 is interior hexagonal Cock screw.
The cross section of described seal 5 is T-shaped, and first end 51 is adjacent with bearing box end cap 4.
Last it is noted that above embodiment only in order to illustrate the utility model and and technological scheme described by unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment, those of ordinary skill in the art should be appreciated that and still can modify to the utility model or equivalent replacement; And all do not depart from technological scheme and the improvement thereof of spirit and scope of the present utility model, it all should be encompassed in right of the present utility model.
Claims (7)
1. a blower fan non-contact mechanical seal structure, comprise main shaft (1), be arranged on the bearing unit on main shaft (1), described bearing unit comprises bearing (2) and bearing housing (3), bearing box end cap (4), it is characterized in that: described main shaft (1) is also provided with seal (5), the face that described seal (5) is adjacent with bearing box end cap is the conical surface, the tapering of this conical surface is consistent with the tapering of bearing box end cap (4), leaves gap between described seal (5) and bearing box end cap (4).
2. blower fan non-contact mechanical seal structure according to claim 1, is characterized in that: described seal (5) is locked on main shaft (1) by screw (6).
3. blower fan non-contact mechanical seal structure according to claim 2, is characterized in that: described screw (6) is interior hexagonal Cock screw.
4. blower fan non-contact mechanical seal structure according to claim 1, is characterized in that: the gap between described seal (5) and bearing box end cap (4) is 1.5-2mm.
5. blower fan non-contact mechanical seal structure according to claim 4, is characterized in that: the cross section of described seal (5) is T-shaped, and first end (51) is adjacent with bearing box end cap (4).
6. blower fan non-contact mechanical seal structure according to claim 1, is characterized in that: described bearing unit is fixed by round nut (7) and thrust washer (8).
7. blower fan non-contact mechanical seal structure according to claim 1, is characterized in that: described seal (5) is steel part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714123.1U CN204942057U (en) | 2015-09-16 | 2015-09-16 | Blower fan non-contact mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714123.1U CN204942057U (en) | 2015-09-16 | 2015-09-16 | Blower fan non-contact mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942057U true CN204942057U (en) | 2016-01-06 |
Family
ID=55009494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520714123.1U Expired - Fee Related CN204942057U (en) | 2015-09-16 | 2015-09-16 | Blower fan non-contact mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942057U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402011A (en) * | 2016-12-14 | 2017-02-15 | 宜兴市灵谷塑料设备有限公司 | Non-contact type end cover for bearing box for pump |
| CN108612667A (en) * | 2016-12-09 | 2018-10-02 | 镇江立中机械设备有限公司 | Wind turbine non-contact mechanical seal structure |
| CN112431774A (en) * | 2020-11-11 | 2021-03-02 | 长沙普罗科环境装备有限责任公司 | Fan driving mechanism and sanitation vehicle |
-
2015
- 2015-09-16 CN CN201520714123.1U patent/CN204942057U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612667A (en) * | 2016-12-09 | 2018-10-02 | 镇江立中机械设备有限公司 | Wind turbine non-contact mechanical seal structure |
| CN106402011A (en) * | 2016-12-14 | 2017-02-15 | 宜兴市灵谷塑料设备有限公司 | Non-contact type end cover for bearing box for pump |
| CN112431774A (en) * | 2020-11-11 | 2021-03-02 | 长沙普罗科环境装备有限责任公司 | Fan driving mechanism and sanitation vehicle |
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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: 20160106 Termination date: 20180916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |