CN204851751U - Centrifugal fan's bearing seal structure - Google Patents
Centrifugal fan's bearing seal structure Download PDFInfo
- Publication number
- CN204851751U CN204851751U CN201520567165.7U CN201520567165U CN204851751U CN 204851751 U CN204851751 U CN 204851751U CN 201520567165 U CN201520567165 U CN 201520567165U CN 204851751 U CN204851751 U CN 204851751U
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- CN
- China
- Prior art keywords
- bearing
- oil
- oil baffle
- seal structure
- baffle
- 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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Abstract
The utility model discloses a centrifugal fan's bearing seal structure, epaxial and bearing lock mother, be provided with the filler including cup jointing the setting between gland and the end cover, be provided with seal structure in bearing end plate, seal structure includes oil baffle, J type sealing washer and spacer sleeve, and the oil baffle sets up along the welding of bearing end plate inner wall, and the setting of J type sealing washer is between bearing end plate and axle, and the spacer sleeve setting is provided with the oil gallery on the oil baffle of end cover extreme lower position department between oil baffle and J type sealing washer. The utility model discloses novel structure, reasonable in design can be kept off back by most lubricating oil through the oil baffle that sets up, the oil gallery that sets up simultaneously, in being convenient for flow in the bearing box again with the lubricating oil that keeps off back, the setting of J type sealing washer can prevent effectively that oil from spilling, and the oily axial motion of prevention leave few lubricating oil, seals through the filler, and multiple sealing effect can effectively reduce the emergence that the oil leak phenomenon was located to the axle journal.
Description
Technical field
The utility model belongs to bearing machining equipment technical field, is specifically related to a kind of bearing seal structure of centrifugal blower.
Background technique
Fan bearing many employings thin oil lubricant of centrifugal blower, the many employings of its bearing seal mode add gland seal at filler, this kind of sealing means, although structure is fairly simple, but after there is fan operation a period of time, asbestos packing is easily dry hardening, thus follow the string, packing was once lose efficacy, and its sealing effect is had a greatly reduced quality, lubricant oil will constantly leak from axle journal, need again to change filler, dismantle cumbersome, need the operation stopping blower fan simultaneously, affect working efficiency, bring certain trouble to service worker.
Model utility content
For problems of the prior art, the purpose of this utility model is to design the bearing seal structure providing a kind of centrifugal blower.
The bearing seal structure of described centrifugal blower, comprise the gland, end cap and the bearing locking nut that are socketed and are arranged on axle, filler is provided with between described gland and end cap, it is characterized in that being provided with sealing configuration in bearing (ball) cover, described sealing configuration comprises oil baffle, J RunddichtringO and spacer sleeve, described oil baffle is arranged along the welding of bearing (ball) cover inwall, described J RunddichtringO is arranged between bearing (ball) cover and axle, described spacer sleeve is arranged between oil baffle and J RunddichtringO, and the oil baffle of described end cap its lowest position is provided with spill port.
The bearing seal structure of described centrifugal blower, is characterized in that the thick of described oil baffle is 2.5-3mm.
The bearing seal structure of described centrifugal blower, is characterized in that the thickness of described oil baffle is 2.8mm.
The bearing seal structure of described centrifugal blower, is characterized in that the distance between the end face of described oil baffle and bearing locking nut is 3.2-3.8mm.
The bearing seal structure of described centrifugal blower, is characterized in that the distance between the end face of described oil baffle and bearing locking nut is 3.5mm.
The bearing seal structure of described centrifugal blower, is characterized in that the radial clearance of described oil baffle and axle is 0.2mm.
The utility model novel structure, reasonable in design, most of lubricant oil can be kept off back by the oil baffle arranged, the spill port simultaneously arranged, the lubricant oil kept off back is convenient to again to flow in bearing housing, the setting of J RunddichtringO, can effectively prevent oil leakage from going out, and stops the axial motion of oil, remaining few lubricant oil, sealed by filler, multi-sealed effect, effectively can reduce the generation of axle journal place oil leakage phenomenon.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: 1-axle, 2-gland, 3-end cap, 4-bearing locking nut, 5-filler, 6-oil baffle, 7-J RunddichtringO, 8-spacer sleeve.
Embodiment
The utility model is further illustrated below in conjunction with Figure of description.
As shown in Figure 1, the bearing seal structure of the utility model centrifugal blower, comprise the gland 2 being socketed and being arranged on axle 1, end cap 3 and bearing locking nut 4, filler 5 is provided with between gland 2 and end cap 3, this filler is asbestos packing, for increasing sealing effect, sealing configuration is provided with in bearing (ball) cover 3, sealing structure comprises oil baffle 6, J RunddichtringO 7 and spacer sleeve 8, oil baffle 6 is arranged along the welding of bearing (ball) cover 3 inwall, J RunddichtringO 7 is arranged between bearing (ball) cover 3 and axle 1, spacer sleeve 8 is arranged between oil baffle 6 and J RunddichtringO 7, the oil baffle 6 of end cap 3 its lowest position is provided with spill port.Wherein, the thick of oil baffle 6 is 2.5-3mm, and optimum is 2.8mm; Distance between the end face of oil baffle 6 and bearing locking nut is 3.2-3.8mm, and optimum is 3.5mm; Oil baffle 6 is 0.2mm with the radial clearance of axle 1.
It is that steel plate that 2.5-3mm is thick is as oil baffle 6 that the utility model is welded with a circle thickness inside bearing (ball) cover 3, distance between the end face of oil baffle 6 and bearing locking nut 4 is 3.2-3.8mm, this kind is arranged, even if make blower fan be in operation axle 1 expanded by heating, axle 1 and oil baffle 6 also can not be made to occur rub and meet accident.By weld oil baffle 6 bearing (ball) cover 3 on lathe finish turning oil baffle endoporus; To ensure the coaxality of oil baffle 6 and end cap shaft hole, and the radial clearance controlling oil baffle and blower fan main shaft is 0.2mm, again to oil baffle 6 side light car one cutter, to eliminate its plane error.Finally on the oil baffle of end cap 3 lowest part, bore a spill port.Note will ensureing that spill port is in extreme lower position when bearing (ball) cover is installed, don't be wrongly installed and inoperative, oil baffle 6 must firm welding, not tear-away.Pull down bearing (ball) cover 3, strengthen the cavity inside diameter of its annular oil-return groove, at this place, J RunddichtringO 7 is installed, makes it tightly to bind round on axle 1, do not rotate with the rotation of main shaft.Separately add a spacer sleeve 8, J RunddichtringO 7 is pushed down in one end, and the other end withstands on oil baffle 6.
During utility model works, when fan shaft High Rotation Speed, the lubricant oil taken up by bearing is under the effect of oil baffle 6, major part is kept off back, small part enter oil between oil baffle 6 and end cap 3 inwall due to splashing speed very slow, under gravity, the oil meeting nature be bonded on inwall is dirty, flow back in bearing housing by the spill port of end cap 3 lowest part, remaining oil is fallen on J RunddichtringO 7, and the effect of J RunddichtringO 7 is exactly prevent oil leakage from going out, forms one deck annular oil film blocking layer between J RunddichtringO 7 and axle 1, prevent the axial motion of oil.Remaining few oil, realizes sealing by the sealing of original asbestos packing.Like this, the bearing housing of this blower fan is sealed by level Four, eliminates the oil leakage phenomenon at axle journal place up hill and dale.
Claims (6)
1. the bearing seal structure of centrifugal blower, comprise socket and be arranged on gland (2) on axle (1), end cap (3) and bearing locking nut (4), filler (5) is provided with between described gland (2) and end cap (3), it is characterized in that being provided with sealing configuration in bearing (ball) cover (3), described sealing configuration comprises oil baffle (6), J RunddichtringO (7) and spacer sleeve (8), described oil baffle (6) is arranged along the welding of bearing (ball) cover (3) inwall, described J RunddichtringO (7) is arranged between bearing (ball) cover (3) and axle (1), described spacer sleeve (8) is arranged between oil baffle (6) and J RunddichtringO (7), the oil baffle (6) of described end cap (3) its lowest position is provided with spill port.
2. the bearing seal structure of centrifugal blower as claimed in claim 1, is characterized in that the thick of described oil baffle (6) is 2.5-3mm.
3. the bearing seal structure of centrifugal blower as claimed in claim 2, is characterized in that the thickness of described oil baffle (6) is 2.8mm.
4. the bearing seal structure of centrifugal blower as claimed in claim 1, is characterized in that the distance between the end face of described oil baffle (6) and bearing locking nut (4) is 3.2-3.8mm.
5. the bearing seal structure of centrifugal blower as claimed in claim 4, is characterized in that the distance between the end face of described oil baffle (6) and bearing locking nut (4) is 3.5mm.
6. the bearing seal structure of centrifugal blower as claimed in claim 1, is characterized in that described oil baffle (6) is 0.2mm with the radial clearance of axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520567165.7U CN204851751U (en) | 2015-07-31 | 2015-07-31 | Centrifugal fan's bearing seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520567165.7U CN204851751U (en) | 2015-07-31 | 2015-07-31 | Centrifugal fan's bearing seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851751U true CN204851751U (en) | 2015-12-09 |
Family
ID=54742305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520567165.7U Expired - Fee Related CN204851751U (en) | 2015-07-31 | 2015-07-31 | Centrifugal fan's bearing seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851751U (en) |
-
2015
- 2015-07-31 CN CN201520567165.7U patent/CN204851751U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20180731 |