CN201184310Y - Bearing box for blower fan with good hermeticity - Google Patents
Bearing box for blower fan with good hermeticity Download PDFInfo
- Publication number
- CN201184310Y CN201184310Y CNU2008200460185U CN200820046018U CN201184310Y CN 201184310 Y CN201184310 Y CN 201184310Y CN U2008200460185 U CNU2008200460185 U CN U2008200460185U CN 200820046018 U CN200820046018 U CN 200820046018U CN 201184310 Y CN201184310 Y CN 201184310Y
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- China
- Prior art keywords
- oil
- end cap
- main shaft
- bearing housing
- disc
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- Expired - Fee Related
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Abstract
The utility model relates to a bearing box with good sealing performance for a fan, which comprises a box body, a main shaft, a bearing, a box cover and an end cover. The bearing box is characterized in that an oil slinger is arranged on the main shaft on the outer end face of the bearing for preventing lubricating oil from flowing outside; and an oil return chute matched with the oil slinger is correspondingly formed on the inner side of the end cover. The bearing box adopts an abrasion-free design ideal. Through the oil slinger arranged on the main shaft and the corresponding oil return chute formed on the end cover, the oil drops generated by a bearing rotating at high speed can be guided to the bottom of the end cover through the oil return chute and then flows to the bearing box after being thrown on the sidewall of the end cover by the centrifugal force of the oil slinger when the oil drops splash on the main shaft, thereby preventing the lubricating oil from leaking from the gap between the main shaft and the end cover, and solving the problems of the prior bearing box sealing structure such as short service life, poor sealing performance and high process requirement.
Description
Technical field
The utility model relates to a kind of blower fan bearing housing.
Background technique
Current ventilator or the used bearing housing of induced draught fan, the sealing configuration of its two end generally has following several mode: a kind of is to adopt the woollen blanket circle to seal, this kind mode mainly is installed in the woollen blanket circle on the end cap of bearing housing, utilizes the woollen blanket circle to intercept lubricant oil cascading water outward; But the woollen blanket circle, follows the string because of long-time immersion oil easily along with after growing service time, causes seal failure.Another kind is to adopt the lip seal with elastometic washer, and this sealing means is higher to the main shaft processing request, fitness for purpose finish grind to degree of finish be 0.8; Yet, this kind mode between in use long after, rubber ring also can cause seal failure because of wearing and tearing.Having a kind of again is spiral seal, and this mode mainly utilizes screw rod to send working medium back to, though there is not the notion of wear out failure, using process must be distinguished left and right sides rotation direction, otherwise can cause serious leakage of oil; Thereby structure is comparatively complicated, it is comparatively fastidious to use.
The model utility content
The purpose of this utility model is to address the above problem and is not enough, and a kind of good airproof performance is provided, and long service life, and technology, simple in structure realize being easy to the blower fan bearing housing.
The technical solution of the utility model is achieved in that
A kind of blower fan bearing housing of good airproof performance, comprise bearing housing, main shaft, bearing, bearing box cover and end cap, its characteristics are that described main shaft is provided with and are used for the disc that block lubricant oil prevents its outflow, this disc is installed on the main shaft that is positioned at the bearing exterior edge face, and also makes the oil-return groove of the effect of matching with disc on the inboard of end cap accordingly.
For making disc can obtain preferable oil removal effect, above-mentioned disc is bowl-shape oil ring spare, and be the rim of a bowl and be installed on the main shaft towards the other places, and on the inboard of end cap the also corresponding lip inner end of taking back oil groove of making the effect of matching with disc, the oil removal space of a sealing of formation between this lip inner end and the bowl-shape disc.
For preventing that extraneous dust and rainwater from entering in the bearing housing, to the usability of bearing housing with constitute influence working life, above-mentioned end cap also is provided with and is used to intercept extraneous dust and rainwater and enters woollen blanket seal ring in the bearing housing.
The utility model adopts a kind of nothing wearing and tearing design concept, by being provided with disc on the main shaft in bearing housing and the corresponding structure of making the oil-return groove of the effect of matching on the inboard of end cap with disc, when making the oil droplet of the generation that bearing drives of high speed rotating be splashed on the main shaft, after through the centrifugal action power of disc oil being thrown on the sidewall of end cap, the bottom that causes end cap through oil-return groove is flowed back in the bearing housing, thereby accomplishes to prevent that lubricant oil is from rushing down the purpose of leakage between main shaft and the end cap.Simultaneously, again because employing is made bowl-shape structure with disc and the corresponding structure of making the lip inner end of taking back oil groove of the effect of matching with bowl-shape disc on the inboard of end cap, thereby between main shaft and end cap, form the oil removal space of a sealing, when making the oil droplet of the generation that bearing drives of high speed rotating be splashed on the main shaft, the bottom that causes end cap through oil-return groove after the centrifugal action power of bowl-shape disc is thrown to oil on the sidewall of end cap is flowed back in the bearing housing, play the further sealability of the present utility model that improved, make it can better play the block oil droplet, prevent that oil droplet from rushing down the effect of leakage outward.The utility model is good airproof performance not only, long service life, and have technology, simple in structure, and realize easily, install simply, to characteristics such as the main shaft processing request are low.And, solved effectively the sealing configuration of existing bearing housing existing working life short, sealing is poor, complex structure, installation difficulty are big, processing technology requires problems such as height.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the blower fan bearing housing of a kind of good airproof performance described in the utility model, comprise bearing housing 1, main shaft 2, bearing 3, bearing box cover 4 and end cap 5, be the sealing configuration that solves existing bearing housing weak point in existing working life, sealing is poor, complex structure, installation difficulty is big, processing technology requires problems such as height, main shaft 2 described in the utility model is provided with and is used for the disc 6 that block lubricant oil prevents its outflow, this disc 6 is installed on the main shaft 3 that is positioned at bearing 3 exterior edge faces, and also makes the oil-return groove 7 of the effect of matching with disc 6 on the inboard of end cap 5 accordingly.This makes when the oil droplet of generation that bearing drives of high speed rotating is splashed on the main shaft, after through the centrifugal action power of disc oil being thrown on the sidewall of end cap, the bottom that causes end cap through oil-return groove is flowed back in the bearing housing, thereby accomplishes to prevent that lubricant oil is from rushing down the purpose of leakage between main shaft 2 and the end cap 5.For making disc can obtain preferable oil removal effect, as shown in Figure 1, described disc 6 generally becomes bowl-shape oil ring spare, and is the rim of a bowl and is installed on the main shaft 3 towards the other places.Simultaneously, the oil removal space 9 of a sealing of formation between the also corresponding lip inner end 54 of taking back oil groove 7 of making the effect of matching on the inboard of end cap 5, this lip inner end 54 and bowl-shape disc 6 with disc 6.Like this, when making the bearing 3 of high speed rotating drive the oil droplet that produces to be splashed on the main shaft, the bottom that causes end cap through oil-return groove 7 after the centrifugal action power of bowl-shape disc 6 is thrown to oil on the sidewall of end cap 5 is flowed back in the bearing housing.Play the further sealability of the present utility model that improved, make it can better play the block oil droplet, prevent that oil droplet from rushing down the effect of leakage outward.For preventing that extraneous dust and rainwater from entering in the bearing housing, and for example shown in Figure 1 to the usability and working life of bearing housing constituting influence, described end cap 5 also is provided with and is used to intercept extraneous dust and rainwater and enters woollen blanket seal ring 8 in the bearing housing.Simultaneously, for woollen blanket seal ring 8 is installed between main shaft 2 and the end cap 5 simply, effectively, described end cap 5 becomes by end cap main body 51 and end cap pressing plate 52 and constitutes, wherein be provided with between end cap pressing plate 52 and end cap main body 51 for woollen blanket seal ring 8 and hide the seal groove 53 of embedding, described woollen blanket seal ring 8 is placed on the main shaft 2 and by end cap pressing plate 52 roof pressures and is embedded in the seal groove 53.
Claims (5)
1, a kind of blower fan bearing housing of good airproof performance, comprise bearing housing (1), main shaft (2), bearing (3), bearing box cover (4) and end cap (5), it is characterized in that described main shaft (2) is provided with the disc (6) that is used for block lubricant oil and prevents its outflow, this disc (6) is installed on the main shaft (3) that is positioned at bearing (3) exterior edge face, and also makes the oil-return groove (7) of the effect of matching with disc (6) on the inboard of end cap (5) accordingly.
2,, it is characterized in that above-mentioned disc (6) is bowl-shape oil ring spare, and be the rim of a bowl and be installed on the main shaft (2) towards the other places according to the blower fan bearing housing of the described good airproof performance of claim 1.
3, according to the blower fan bearing housing of claim 1 or 2 described good airproof performances, it is characterized in that correspondence on the inboard of above-mentioned end cap (5) makes the lip inner end (54) of taking back oil groove (7) of the effect of matching with disc (6), the oil removal space (9) of a sealing of formation between this lip inner end (54) and the bowl-shape disc (6).
4,, it is characterized in that above-mentioned end cap (5) also is provided with and be used to intercept extraneous dust and rainwater and enter woollen blanket seal ring (8) in the bearing housing according to the blower fan bearing housing of the described good airproof performance of claim 1.
5, according to the blower fan bearing housing of claim 1 or 3 described good airproof performances, it is characterized in that above-mentioned end cap (5) is made of end cap main body (51) and end cap pressing plate (52), wherein be provided with the seal groove (53) of hiding embedding for woollen blanket seal ring (8) between end cap pressing plate (52) and end cap main body (51), above-mentioned woollen blanket seal ring (8) is placed on main shaft (2) and goes up and be embedded in the seal groove (53) by end cap pressing plate (52) roof pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200460185U CN201184310Y (en) | 2008-04-07 | 2008-04-07 | Bearing box for blower fan with good hermeticity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200460185U CN201184310Y (en) | 2008-04-07 | 2008-04-07 | Bearing box for blower fan with good hermeticity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184310Y true CN201184310Y (en) | 2009-01-21 |
Family
ID=40272050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200460185U Expired - Fee Related CN201184310Y (en) | 2008-04-07 | 2008-04-07 | Bearing box for blower fan with good hermeticity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184310Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606515A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Oil seal system for boric acid recirculation pump |
| CN102606508A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Process control system (PCS) recirculation pump |
| CN107882754A (en) * | 2017-10-30 | 2018-04-06 | 上海通用风机股份有限公司 | A kind of adjustable oil-lubricated bearing case |
-
2008
- 2008-04-07 CN CNU2008200460185U patent/CN201184310Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606515A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Oil seal system for boric acid recirculation pump |
| CN102606508A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Process control system (PCS) recirculation pump |
| CN107882754A (en) * | 2017-10-30 | 2018-04-06 | 上海通用风机股份有限公司 | A kind of adjustable oil-lubricated bearing case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20120407 |