CN205173043U - Centrifugal fan bearing end plate subassembly structure - Google Patents
Centrifugal fan bearing end plate subassembly structure Download PDFInfo
- Publication number
- CN205173043U CN205173043U CN201521016654.XU CN201521016654U CN205173043U CN 205173043 U CN205173043 U CN 205173043U CN 201521016654 U CN201521016654 U CN 201521016654U CN 205173043 U CN205173043 U CN 205173043U
- Authority
- CN
- China
- Prior art keywords
- end cap
- packing cavity
- centrifugal fan
- oil
- fan bearing
- 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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- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a centrifugal fan bearing end plate subassembly structure, including main shaft, keyway, end cover and felt ring, the integral type is provided with the packing cavity on the end cover, and felt ring sets up in the bottom of packing cavity, is provided with the gland on the packing cavity, and it is fixed with the end cover that the gland passes through the screw, and the bottom of end cover is provided with the oil -recovery tank, and the bottom of end cover connects still that to be provided with the oil blanket leading sealed, and the oil blanket is leading sealedly to be set up with the lock nut welding, and lock nut is continuous with the bearing. The utility model discloses novel structure, reasonable in design, through setting packing cavity and gland to 1: 15 the tapering to improve felt ring when compressing tightly to neutrality and homogeneity, solve felt ring and change difficulty, uneven, the unequal shortcoming of pressure in clearance, reduced friction energy loss in addition, lengthened the felt ring life -span, produce negative micro -pressure at the axle with end cap seal department through the rotation of getting rid of the oilhole to one side that sets up, formed one kind sealed from inhaling the formula, can effectively prevent the emergence of the lubricating oil seepage condition.
Description
Technical field
The utility model relates to a kind of end cover structure, is specifically related to a kind of centrifugal fan bearing (ball) cover modular construction.
Background technique
Centrifugal fan, bearing box end cap is ironcasting, and oil sealing adopts contact-type felt ring seal.Due to long-time use, oil seal felt serious wear, does not have sealing effect, oil impregnate phenomenon is serious, lubrication oil consumption strengthens, and equipment ambient contamination increases the weight of, and once lubricant oil deficiency does not process again in time, fan bearing will be caused to damage and even to cause equipment failure, affect device long-term operation, existing blower bearing end cover structure, by natural mode felt ring seal lubricant oil, is easily leaked, felt collar is changed not only time-consuming but also require great effort, and cannot regulate.Tension, scaling loss of easily generating heat; Cross pine, easily leak again, and end cap internal surface can not oil return well.
Model utility content
For problems of the prior art, the purpose of this utility model is that design provides a kind of centrifugal fan bearing (ball) cover modular construction.
Described a kind of centrifugal fan bearing (ball) cover modular construction, comprise main shaft, the keyway be arranged on main shaft, end cap and felt collar, it is characterized in that on described end cap, integral type is provided with packing cavity, described felt collar is arranged on the bottom of packing cavity, packing cavity is provided with gland, described gland is fixed by screw and end cap, the bottom of described end cap is provided with oil-return groove, the bottom of described end cap is also connected with the preposition sealing of oil sealing, the preposition sealing of described oil sealing is welded with locking nut and is arranged, and described locking nut is connected with bearing.
Described a kind of centrifugal fan bearing (ball) cover modular construction, is characterized in that described end cap is also provided with labyrinth seal.
Described a kind of centrifugal fan bearing (ball) cover modular construction, it is characterized in that described gland is made up of lug boss and rib, described lug boss outer wall and packing cavity inwall match, and rib and end cap are connected by screw.
Described a kind of centrifugal fan bearing (ball) cover modular construction, is characterized in that described packing cavity and lug boss are the tapering of 1:15.
Described a kind of centrifugal fan bearing (ball) cover modular construction, it is characterized in that the preposition sealing of described oil sealing is provided with bevel for welding, the preposition sealing of oil sealing and main shaft contacting point are provided with screw thread.
Described a kind of centrifugal fan bearing (ball) cover modular construction, is characterized in that described bevel for welding place is symmetrically arranged with four and tiltedly gets rid of oilhole.
The utility model novel structure, reasonable in design, by packing cavity and gland being arranged to the tapering of 1:15, improving the centering of felt collar when compressing and uniformity, solving felt collar and changing difficulty, uneven, the unequal shortcoming of pressure in gap, and reduce friction energy loss, extend the felt collar life-span; By arrange tiltedly get rid of oilhole be rotated in axle and end bracket enclosed place produces tiny structure, define a kind of self-priming sealing, effectively can prevent the generation of oil seepage situation.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural drawing of the preposition sealing of oil sealing;
In figure: 1-main shaft, 2-keyway, 3-end cap, 4-felt collar, 5-screw, 6-oil-return groove, the preposition sealing of 7-oil sealing, 8-locking nut, 9-bearing, 10-lug boss, 11-rib, 12-bevel for welding.
Embodiment
The utility model is further illustrated below in conjunction with Figure of description.
As shown in Figure 1-2, a kind of centrifugal fan bearing (ball) cover of the utility model modular construction, comprise main shaft 1, be arranged on the keyway 2 on main shaft 1, be provided with end cap 3 and the felt collar 4 of labyrinth seal, on end cap 3, integral type is provided with packing cavity, felt collar 4 is arranged on the bottom of packing cavity, packing cavity is provided with gland, gland is fixed by screw 5 and end cap 3, the concrete structure of gland is: gland is made up of lug boss 10 and rib 11, lug boss 10 outer wall and packing cavity inwall match, rib 11 is connected by screw 5 with end cap 3, packing cavity and lug boss 10 are the tapering of 1:15.The bottom of end cap 3 is provided with oil-return groove 6, the bottom of end cap 3 is also connected with the preposition sealing 7 of oil sealing, the preposition sealing 7 of oil sealing is welded with locking nut 8 and is arranged, locking nut 8 is connected with bearing 9, the preposition sealing 7 of oil sealing is provided with bevel for welding 12, the preposition sealing of oil sealing 7 and main shaft 1 contacting point are provided with screw thread, and bevel for welding 12 place is symmetrically arranged with four tiltedly gets rid of oilhole.
The tapering of the utility model by packing cavity and gland being set to 1: 15, effective raising felt collar 4 compress time centering and uniformity, not only overcome felt collar 4 and change difficulty, gap inequality, the unequal shortcoming of pressure, and reduce friction energy loss, extend felt collar 4 life-span; The end cap 3 of this vibrational power flow alleviates felt collar 4 because of the saturated leakage produced afterwards of adsorpting lubrication oil, simultaneously at the oil-return groove 6 that end cap 3 inside increases, lubricant oil is enable to flow to bottom half by oil-return groove 6 in time, by the labyrinth seal on end cap 3, lubricant oil is decayed vertically, ensure that the lubricant oil flowing into felt collar 4 reduces, end cap shaft seal place is leaked and serves certain mitigation.The end-cap assembly structure of this vibrational power flow, in running, most of oil droplet is kept off back in bearing housing, and falls into fuel tank by end cap 3 oil-return groove, is no longer splashed on the end cap inwall near axle journal, decrease the chance of shaft seal place leakage of oil, serve the effect of chopped-off head sealing; An oil revolute chamber is formed between the preposition sealing of oil sealing and end cap, even if a small amount of oil leakage enters in this space, because splashing speed is slow, by processing after the preposition sealing 7 of shaft seal on tiltedly get rid of oilhole be rotated in axle and end bracket enclosed place produces tiny structure, define a kind of self-priming sealing, utilize the labyrinth seal on end cap and felt ring seal simultaneously.Therefore, as long as end cap is combined with fuel tank tightly, would not oil seepage be there is, thus reach the object of oil sealing.
Claims (6)
1. a centrifugal fan bearing (ball) cover modular construction, comprise main shaft (1), be arranged on the keyway (2) on main shaft (1), end cap (3) and felt collar (4), it is characterized in that the upper integral type of described end cap (3) is provided with packing cavity, described felt collar (4) is arranged on the bottom of packing cavity, packing cavity is provided with gland, described gland is fixed by screw (5) and end cap (3), the bottom of described end cap (3) is provided with oil-return groove (6), the bottom of described end cap (3) is also connected with the preposition sealing of oil sealing (7), the preposition sealing of described oil sealing (7) is welded with locking nut (8) and is arranged, described locking nut (8) is connected with bearing (9).
2. a kind of centrifugal fan bearing (ball) cover modular construction as claimed in claim 1, is characterized in that described end cap (3) is also provided with labyrinth seal.
3. a kind of centrifugal fan bearing (ball) cover modular construction as claimed in claim 1, it is characterized in that described gland is made up of lug boss (10) and rib (11), described lug boss (10) outer wall and packing cavity inwall match, and rib (11) is connected by screw (5) with end cap (3).
4. a kind of centrifugal fan bearing (ball) cover modular construction as claimed in claim 3, is characterized in that the tapering that described packing cavity and lug boss (10) are 1:15.
5. a kind of centrifugal fan bearing (ball) cover modular construction as claimed in claim 1, is characterized in that the preposition sealing of described oil sealing (7) is provided with bevel for welding (12), and the preposition sealing of oil sealing (7) and main shaft (1) contacting point are provided with screw thread.
6. a kind of centrifugal fan bearing (ball) cover modular construction as claimed in claim 5, is characterized in that described bevel for welding (12) place is symmetrically arranged with four and tiltedly gets rid of oilhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016654.XU CN205173043U (en) | 2015-12-09 | 2015-12-09 | Centrifugal fan bearing end plate subassembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016654.XU CN205173043U (en) | 2015-12-09 | 2015-12-09 | Centrifugal fan bearing end plate subassembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173043U true CN205173043U (en) | 2016-04-20 |
Family
ID=55737045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521016654.XU Expired - Fee Related CN205173043U (en) | 2015-12-09 | 2015-12-09 | Centrifugal fan bearing end plate subassembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425225A (en) * | 2019-09-02 | 2019-11-08 | 郑州机械研究所有限公司 | A kind of overhanging rotary shaft non-contact seal structure |
-
2015
- 2015-12-09 CN CN201521016654.XU patent/CN205173043U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425225A (en) * | 2019-09-02 | 2019-11-08 | 郑州机械研究所有限公司 | A kind of overhanging rotary shaft non-contact seal structure |
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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: 20160420 Termination date: 20161209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |