CN201265651Y - Sealing device for mechanical rotating shaft - Google Patents
Sealing device for mechanical rotating shaft Download PDFInfo
- Publication number
- CN201265651Y CN201265651Y CNU2008200512847U CN200820051284U CN201265651Y CN 201265651 Y CN201265651 Y CN 201265651Y CN U2008200512847 U CNU2008200512847 U CN U2008200512847U CN 200820051284 U CN200820051284 U CN 200820051284U CN 201265651 Y CN201265651 Y CN 201265651Y
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- CN
- China
- Prior art keywords
- rotating shaft
- oil
- disc
- end cover
- mechanical rotating
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a mechanical rotating shaft sealing device which comprises an oil seal, an oil slinger and a bearing seat, wherein the oil slinger is sheathed on a rotating shaft arranged between the oil seal and the rotating shaft bearing and is driven by the rotating shaft to rotate, the outer periphery of the oil slinger is provided with at least one gap, the side edges of the gap arranged on the rotating shaft bearing side are respectively provided with an oil splashing incline, and the inclination directions of the two oil splashing inclines are opposite; in addition, the mechanical rotating shaft sealing device also comprises a sealing end cover which forms labyrinth seal with the nearing seat. Compared with the prior art, the utility model is provided with the gap and the oil splashing inclines on the oil slinger; when the rotating shaft rotates at high speed, the peripheral side of the oil slinger generates pressure difference to form oil pumping effect so that the pressure of the oil seal is reduced to increase the reliability and the sealing effect of the oil seal, on the other hand, the sealed end cover is additionally arranged to isolate outside moisture and dust so as to effectively prolong the service life of the oil seal.
Description
Technical field
The utility model relates to a kind of seal arrangement, belongs to the seal arrangement field of machinery, especially a kind of mechanical rotating shaft seal arrangement.
Background technique
At present, in ceramic wall and floor bricks deep processing field, polishing is as one important procedure, and its efficient and quality have determined the quality and the productivity of product to a great extent.And polissoir is as the key equipment of polishing process, for guaranteeing its long-term efficient safety of moving and stablize that the quality of polissoir seal arrangement plays an important role.
As shown in Figure 1, in the existing polissoir, the sealing configuration of rotating shaft and bearing support generally adopts oil sealing 1 sealing, utilizes the impacting force close encapsulation gap of oil sealing 1, reaches sealing purpose.But there is following defective in this sealing configuration, and promptly oil sealing 1 can't bear excess pressure, but fluid has certain pressure, and along with the rotating shaft rotation, temperature raises, and pressure also increases thereupon, thereby causes oil sealing 1 easy inefficacy leakage of oil, and safety reliability is low; Simultaneously, the oil sealing of this sealing configuration 1 directly contact with extraneous, in the air with working procedure in materials such as moisture, dust directly contact with oil sealing 1, cause oil sealing 1 to wear out easily and corrode, thereby significantly reduce working life of oil sealing 1.Also have the part dealer that disc is set in oil seal structure, utilize disc, but this class device common configuration is complicated, make and assembling unusual trouble all, and be unfavorable in the future maintain and replace the fluid oil return pond of flowing backwards.
Summary of the invention
The purpose of this utility model is to overcome shortcoming of the prior art with not enough, provide a kind of simple in structure, sealing is tight, do not have leak, the safe and reliable and mechanical rotating shaft seal arrangement being convenient to safeguard.
To achieve these goals, the utility model is realized by following technological scheme:
The mechanical rotating shaft seal arrangement comprises oil sealing, disc and bearing support, and disc is placed in the rotating shaft between oil sealing and the shaft bearing and is driven by rotating shaft and rotates; Described disc outer periphery is provided with at least one breach, and the breach dual-side that is positioned at the shaft bearing side gets rid of oily inclined-plane along being respectively equipped with one, and two to get rid of the true dip direction on oily inclined-plane relative.
Further, described breach is 3～6, and is evenly distributed on the outer periphery of disc.
Further, described seal arrangement also comprises an end cover, and described end cover is positioned at the oil sealing outside and fixedlys connected with rotating shaft.
Further, described disc is that screw is connected with rotating shaft, or the interference connection, or slotting key connects.
Further, described end cover and bearing support form labyrinth seal.
The utility model compared with prior art, on disc, be provided with breach and get rid of oily inclined-plane, produce pressure difference in all sides of disc when utilizing the rotating shaft high speed rotating, form pump oil effect, thereby reduce the pressure at oil sealing place, improve the reliability and the sealing effect of oil sealing, on the other hand, by adding end cover, isolating exterior moisture and dust effectively prolong working life of oil sealing.
In order to understand the utility model more clearly, set forth embodiment of the present utility model below with reference to description of drawings.
Description of drawings
Fig. 1 is the structural representation of existing seal arrangement.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the structural representation of disc among Fig. 2.
Fig. 4 is the sectional view of A-A among Fig. 3.
Embodiment
Shown in Fig. 2～4, mechanical rotating shaft seal arrangement described in the utility model comprises oil sealing 1, disc 2, bearing support 4 and end cover.
Above-mentioned disc 2 is placed in the rotating shaft 6 between oil sealing 1 and the shaft bearing 5 and with its screw and is fastenedly connected (also can adopt interference to be connected or insert key and connect), is driven by rotating shaft 6 and rotates.The disc outer periphery is evenly distributed with six breach 21, and to get rid of the true dip direction that gets rid of oily inclined-plane 22 in oily inclined-plane 22, two relative along being respectively equipped with one for breach 21 dual-sides that are positioned at the shaft bearing side.
Above-mentioned end cover 3 is positioned at oil sealing 1 outside, its with rotating shaft 6 for bolton is connected, and form labyrinth seals with bearing support 4.When end cover 3 during with rotating shaft 6 high speed rotating, materials such as moisture and dust produce when the gap by tortuous labyrinth outside the effect of damming is blocked in, and reach resistance and leak purpose; On the other hand, the contact of no solid need not be lubricated, and be allowed thermal expansion between the structure of labyrinth seal, thereby has well adapted to the environmental requirement of high temperature, high pressure, high speed-frequency.
During work, disc 2 is with mechanical rotating shaft 6 high speed rotating, because disc 2 is provided with breach 21 and gets rid of oily inclined-plane 22, thereby disc 2 both sides can produce pressure difference in the rotating shaft rotary course, be the pressure of the pressure of shaft bearing 5 one sides less than oil sealing 1 one sides, so the fluid at oil sealing place flows to bearing one side along getting rid of oily inclined-plane 22, form a kind of pump oil effect, and then reduce the oil sealing place pressure (since the breach both sides be respectively equipped with true dip direction relative get rid of oily inclined-plane, therefore the rotating shaft clockwise and anticlockwise all can realize pump oil effect), the reliability and the sealing effect of raising oil sealing 1; On the other hand, end cover 3 is also with rotating shaft 6 high speed rotating, the effect of damming that the labyrinth seal structure that itself and bearing support 4 form produces has stopped that effectively outside moisture and dust enter, thereby makes oil sealing 1 isolate materials such as moisture and dust, has prolonged the working life of oil sealing 1.
The utility model is not limited to above-mentioned mode of execution, if various changes of the present utility model or modification are not broken away from spirit and scope of the present utility model, if these are changed and modification belongs within claim of the present utility model and the equivalent technologies scope, then the utility model also is intended to comprise these changes and modification.
Claims (6)
1, mechanical rotating shaft seal arrangement, comprise oil sealing, disc and bearing support, disc is placed in the rotating shaft between oil sealing and the shaft bearing and is driven by rotating shaft and rotates, it is characterized in that: described disc outer periphery is provided with at least one breach, the breach dual-side that is positioned at the shaft bearing side gets rid of oily inclined-plane along being respectively equipped with one, and two to get rid of the true dip direction on oily inclined-plane relative.
2, mechanical rotating shaft seal arrangement according to claim 1 is characterized in that: described breach is 3～6, and is evenly distributed on the outer periphery of disc.
3, mechanical rotating shaft seal arrangement according to claim 1 and 2 is characterized in that: also comprise an end cover, described end cover is positioned at the oil sealing outside and fixedlys connected with rotating shaft.
4, mechanical rotating shaft seal arrangement according to claim 1 and 2 is characterized in that: described disc is that screw is connected with rotating shaft, or the interference connection, or slotting key connects.
5, mechanical rotating shaft seal arrangement according to claim 3 is characterized in that: described disc is that screw is connected with rotating shaft, or the interference connection, or slotting key connects.
6, according to claim 3 or 5 described mechanical rotating shaft seal arrangements, it is characterized in that: described end cover and bearing support form labyrinth seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200512847U CN201265651Y (en) | 2008-07-25 | 2008-07-25 | Sealing device for mechanical rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200512847U CN201265651Y (en) | 2008-07-25 | 2008-07-25 | Sealing device for mechanical rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265651Y true CN201265651Y (en) | 2009-07-01 |
Family
ID=40832018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200512847U Expired - Fee Related CN201265651Y (en) | 2008-07-25 | 2008-07-25 | Sealing device for mechanical rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265651Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230538A (en) * | 2011-04-11 | 2011-11-02 | 合肥恒信汽车发动机部件制造有限公司 | Rotating shaft sealing structure |
| CN102818026A (en) * | 2012-08-08 | 2012-12-12 | 东南大学 | Centrifugal and labyrinth combined sealing device for vertical main shaft |
| CN103511634A (en) * | 2013-10-29 | 2014-01-15 | 中国船舶重工集团公司第七�三研究所 | Combined hermetical mechanical structure |
| CN103835863A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Undersea sealing system, tidal power generation unit applying same and application method |
| CN103835862A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Underwater sealing system, tidal power generation set applying same and applying method |
-
2008
- 2008-07-25 CN CNU2008200512847U patent/CN201265651Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230538A (en) * | 2011-04-11 | 2011-11-02 | 合肥恒信汽车发动机部件制造有限公司 | Rotating shaft sealing structure |
| CN102818026A (en) * | 2012-08-08 | 2012-12-12 | 东南大学 | Centrifugal and labyrinth combined sealing device for vertical main shaft |
| CN103511634A (en) * | 2013-10-29 | 2014-01-15 | 中国船舶重工集团公司第七�三研究所 | Combined hermetical mechanical structure |
| CN103835863A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Undersea sealing system, tidal power generation unit applying same and application method |
| CN103835862A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Underwater sealing system, tidal power generation set applying same and applying method |
| CN103835862B (en) * | 2014-03-07 | 2016-03-23 | 国电联合动力技术有限公司 | A kind of underwater sealing system, the tidal power unit applying it and application process |
| CN103835863B (en) * | 2014-03-07 | 2016-03-23 | 国电联合动力技术有限公司 | A kind of underwater sealing system, the tidal power unit applying it and application process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Maanshan KEDA Clean Energy Co., Ltd. Assignor: Guangdong Keda Electromechanical Co., Ltd. Contract record no.: 2010340000003 Denomination of utility model: Sealing device for mechanical rotating shaft Granted publication date: 20090701 License type: Exclusive License Record date: 20100317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20150725 |
|
| EXPY | Termination of patent right or utility model |