CN203892389U - End cover and corresponding sealing structure - Google Patents
End cover and corresponding sealing structure Download PDFInfo
- Publication number
- CN203892389U CN203892389U CN201420317843.XU CN201420317843U CN203892389U CN 203892389 U CN203892389 U CN 203892389U CN 201420317843 U CN201420317843 U CN 201420317843U CN 203892389 U CN203892389 U CN 203892389U
- Authority
- CN
- China
- Prior art keywords
- end cap
- air inlet
- inlet duct
- main shaft
- intake interface
- 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
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to an end cover and a corresponding sealing structure. The end cover comprises a body, wherein a through hole is formed in the body; an annular pressure evening groove is formed in an inner side wall of the through hole; an air inlet pore channel is further formed in the body; one end of the air inlet pore channel is communicated with the outside so as to form an air inlet interface; the other end of the air inlet pore channel is communicated with the pressure evening groove; an element rest is further arranged on one side of the body; an air inlet which is communicated with the air inlet pore channel is further formed in a wall surface on the side with the element rest on the body. By virtue of a formed sealed air curtain, the sealing structure with the end cover is used for well sealing a main shaft which rotates in high speed, a cooling liquid is prevented from contacting with lubricating grease, meanwhile a bearing can be cooled through compressed air inside a positive pressure chamber which is communicated with the pressure evening groove, and thus the working temperature of the bearing is effectively reduced. The sealing structure provided by the utility model further has the advantages of simple structure, low cost and wide applicability.
Description
Technical field
The utility model relates to shaft sealing technical field, especially a kind of end cap and have the sealing configuration of this end cap.
Background technique
At present, often there is in process of production the fault of bearing lubrication inefficacy and bearing damage in high-speed main spindle.By statistics, more transducer set bearing of average 60 days needs, so not only needs to stop production and change, and the damage of bearing itself has also caused great waste.
For the problems referred to above, find after testing it is that cooling liquid enters bearing chamber through the gap of main shaft and end cap, react and cause lubrication failure with lubricant grease, the high temperature that bearing is produced by High Rotation Speed simultaneously burns.Accordingly, further improvement project should be proposed, to address the above problem.
Model utility content
The sealing configuration that the purpose of this utility model is to provide a kind of end cap and has this end cap.
For realizing above-mentioned model utility object, a kind of end cap of the present utility model, it comprises body, on described body, offer through hole, on the madial wall of described through hole, offer annular balancing slit, also offer air inlet duct on described body, one end, described air inlet duct is communicated with outside, form intake interface, the other end is connected with balancing slit;
One side of described body is also provided with convex tendon, and described body is provided with on the wall of convex tendon one side and also offers the inlet hole being connected with described air inlet duct.
As further improvement of the utility model, described convex tendon is annular projection.
As further improvement of the utility model, described intake interface is tubaeform, and the interior opening without leave of described flaring intake interface, to air inlet duct direction, reduces gradually.
For realizing above-mentioned model utility object, a kind of sealing configuration with end cap described above of the present utility model, in described sealing configuration, end cap is assemblied on the opening end of a casing, in the inner space of described chassis defining, be provided with main shaft and bearing, described bearing housing is loaded on described main shaft, and closes on described opening end setting, the convex tendon of described end cap is resisted against on described bearing
Described main shaft stretches out from the inner space of described chassis defining by the through hole of described end cap, between described main shaft and end cap, form a gap, described balancing slit is connected with described gap, described intake interface external compressed air feedway, the pressurized air that described compressed air delivery device provides passes through successively intake interface, air inlet duct, balancing slit and discharges from described gap.
As further improvement of the utility model, when described compressed air delivery device work, the space that described convex tendon and described main shaft limit forms plemum, and described plemum is connected with described balancing slit by described inlet hole and air inlet duct.
As further improvement of the utility model, when described compressed air delivery device work, in described balancing slit, form sealing gas curtain.
For realizing above-mentioned model utility object, based on above-mentioned technical conceive, the utility model also provides another kind of sealing configuration.
Particularly, in the sealing configuration of the technical program, end cap is assemblied on the opening end of a casing, is provided with main shaft and bearing in the inner space of described chassis defining, and described bearing housing is loaded on described main shaft, and closes on described opening end setting;
On described end cap, offer through hole, described main shaft stretches out from the inner space of described chassis defining by the through hole of described end cap, and and end cap between keep a gap, described main shaft and described gap opposite position offer annular balancing slit, on described end cap, also offer air inlet duct, one end, described air inlet duct is communicated with outside, forms intake interface, and the other end is connected with balancing slit;
One side of described end cap is also provided with convex tendon, and described convex tendon and described bearing lean, and also offers the inlet hole being connected with described air inlet duct on the wall that is provided with convex tendon one side of described end cap;
Described intake interface external compressed air feedway, the pressurized air that described compressed air delivery device provides passes through successively intake interface, air inlet duct, balancing slit and discharges from described gap.
As further improvement of the utility model, described convex tendon is annular projection.
As further improvement of the utility model, described intake interface is tubaeform, and the interior opening without leave of described flaring intake interface, to air inlet duct direction, reduces gradually.
Compared with prior art, the beneficial effects of the utility model are: sealing configuration of the present utility model is by the sealing gas curtain forming, the main shaft of High Rotation Speed is realized to good sealing, avoid cooling liquid to contact with lubricant grease, pressurized air in the plemum being connected with balancing slit can carry out bearing cooling simultaneously, effectively reduces the operating temperature of bearing.Sealing configuration of the present utility model also has simple in structure, with low cost, the advantage that applicability is wide.
Brief description of the drawings
Fig. 1 is the cross-sectional schematic of an embodiment of end cap in the utility model;
Fig. 2 is the cross-sectional schematic with an embodiment of the sealing configuration of end cap in Fig. 1.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Change as shown in Fig. 1～2 and amendment.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to claim scope.
As shown in Figure 1, end cap 100 in the utility model comprises body 10, on described body 10, offer through hole 20, on the madial wall of described through hole 20, offer annular balancing slit 30, on described body 10, also offer air inlet duct 40, this air inlet duct 40 is formed at the inside of described body 10, and it is specially a cylindrical bore.40 one end, described air inlet duct are communicated with outside, form intake interface 401, and the other end is connected with balancing slit 30.Alleged outside refers to the existing space environment of end cap herein.Preferably, described intake interface 401 is tubaeform, and the interior opening without leave of described flaring intake interface 401, to air inlet duct 40 directions, reduces gradually.
One side of described body 10 is also provided with convex tendon 50, and described body 10 is provided with on the wall of convex tendon 50 1 sides and also offers the inlet hole 60 being connected with described air inlet duct 40.The effect of described convex tendon is, it can, in the time that end cap uses, lean with bearing, and bearing is played to fixing effect.Preferably, described convex tendon 50 is annular projection.
As shown in Figure 2, the utility model also provides a kind of sealing configuration 200, and sealing structure 200 has end cap 100 as above.Particularly, end cap is assemblied on the opening end of a casing 21, in the inner space that described casing 21 limits, be provided with main shaft 22 and bearing 23, described bearing 23 is set on described master's 22 axles, and close on described opening end setting, the convex tendon of described end cap is resisted against on described bearing 23, and the position of bearing 23 is fixed.Can High Rotation Speed when described main shaft 22 is worked, bearing 23 plays fixing and reduces the effect of friction main shaft 22.
Further, described main shaft 22 stretches out from the inner space of described chassis defining by the through hole of described end cap, forms a gap between described main shaft and end cap, and described balancing slit is connected with described gap.Described intake interface external compressed air feedway (not shown), thus the pressurized air that described compressed air delivery device provides passes through successively intake interface, air inlet duct, balancing slit and discharges from described gap.Now, the pressurized air in balancing slit forms sealing gas curtain, and sealing gas curtain can stop that the lubricant grease between outside cooling liquid and bearing comes in contact, and protects lubricant grease.
In addition, when described compressed air delivery device work, the space that described convex tendon and described main shaft limit forms plemum, and described plemum is connected with described balancing slit by described inlet hole and air inlet duct.Thereby this plemum has ensured the uniformity of the pressure of sealing, again bearing has been carried out to gas cooling simultaneously, effectively reduces the operating temperature of bearing.
Based on above-mentioned technical conceive, the utility model also provides a kind of sealing configuration.
In the sealing configuration of the technical program, end cap is assemblied on the opening end of a casing, is provided with main shaft and bearing in the inner space of described chassis defining, and described bearing housing is loaded on described main shaft, and closes on described opening end setting;
On described end cap, offer through hole, described main shaft stretches out from the inner space of described chassis defining by the through hole of described end cap, and and end cap between keep a gap, described main shaft and described gap opposite position offer annular balancing slit, on described end cap, also offer air inlet duct, one end, described air inlet duct is communicated with outside, forms intake interface, and the other end is connected with balancing slit.Preferably, described intake interface is tubaeform, and the interior opening without leave of described flaring intake interface, to air inlet duct direction, reduces gradually.
One side of described end cap is also provided with convex tendon, and described convex tendon and described bearing lean, and also offers the inlet hole being connected with described air inlet duct on the wall that is provided with convex tendon one side of described end cap.Preferably, described convex tendon is annular projection.
Described intake interface external compressed air feedway, the pressurized air that described compressed air delivery device provides passes through successively intake interface, air inlet duct, balancing slit and discharges from described gap.
To sum up, sealing configuration of the present utility model is by the sealing gas curtain forming, the main shaft of High Rotation Speed is realized to good sealing, avoid cooling liquid to contact with lubricant grease, pressurized air in the plemum being connected with balancing slit can carry out bearing cooling simultaneously, effectively reduces the operating temperature of bearing.Sealing configuration of the present utility model also has simple in structure, with low cost, the advantage that applicability is wide.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any reference character in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to mode of execution, but be not that each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technological scheme in each embodiment also can, through appropriately combined, form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (9)
1. an end cap, it is characterized in that, described end cap comprises body, on described body, offer through hole, on the madial wall of described through hole, offer annular balancing slit, also offer air inlet duct on described body, one end, described air inlet duct is communicated with outside, form intake interface, the other end is connected with balancing slit;
One side of described body is also provided with convex tendon, and described body is provided with on the wall of convex tendon one side and also offers the inlet hole being connected with described air inlet duct.
2. end cap according to claim 1, is characterized in that, described convex tendon is annular projection.
3. end cap according to claim 1, is characterized in that, described intake interface is tubaeform, and the interior opening without leave of described flaring intake interface, to air inlet duct direction, reduces gradually.
4. one kind has the sealing configuration of end cap described in claim 1～3 any one, in described sealing configuration, end cap is assemblied on the opening end of a casing, in the inner space of described chassis defining, be provided with main shaft and bearing, described bearing housing is loaded on described main shaft, and closes on described opening end setting, and the convex tendon of described end cap is resisted against on described bearing, it is characterized in that
Described main shaft stretches out from the inner space of described chassis defining by the through hole of described end cap, between described main shaft and end cap, form a gap, described balancing slit is connected with described gap, described intake interface external compressed air feedway, the pressurized air that described compressed air delivery device provides passes through successively intake interface, air inlet duct, balancing slit and discharges from described gap.
5. sealing configuration according to claim 4, it is characterized in that, when described compressed air delivery device work, the space that described convex tendon and described main shaft limit forms plemum, and described plemum is connected with described balancing slit by described inlet hole and air inlet duct.
6. sealing configuration according to claim 4, is characterized in that, when described compressed air delivery device work, forms sealing gas curtain in described balancing slit.
7. a sealing configuration, is characterized in that,
In described sealing configuration, end cap is assemblied on the opening end of a casing, is provided with main shaft and bearing in the inner space of described chassis defining, and described bearing housing is loaded on described main shaft, and closes on described opening end setting;
On described end cap, offer through hole, described main shaft stretches out from the inner space of described chassis defining by the through hole of described end cap, and and end cap between keep a gap, described main shaft and described gap opposite position offer annular balancing slit, on described end cap, also offer air inlet duct, one end, described air inlet duct is communicated with outside, forms intake interface, and the other end is connected with balancing slit;
One side of described end cap is also provided with convex tendon, and described convex tendon and described bearing lean, and also offers the inlet hole being connected with described air inlet duct on the wall that is provided with convex tendon one side of described end cap;
Described intake interface external compressed air feedway, the pressurized air that described compressed air delivery device provides passes through successively intake interface, air inlet duct, balancing slit and discharges from described gap.
8. end cap according to claim 7, is characterized in that, described convex tendon is annular projection.
9. end cap according to claim 7, is characterized in that, described intake interface is tubaeform, and the interior opening without leave of described flaring intake interface, to air inlet duct direction, reduces gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317843.XU CN203892389U (en) | 2014-06-13 | 2014-06-13 | End cover and corresponding sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317843.XU CN203892389U (en) | 2014-06-13 | 2014-06-13 | End cover and corresponding sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892389U true CN203892389U (en) | 2014-10-22 |
Family
ID=51718797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317843.XU Expired - Fee Related CN203892389U (en) | 2014-06-13 | 2014-06-13 | End cover and corresponding sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892389U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482763A (en) * | 2015-08-28 | 2017-03-08 | 发那科株式会社 | Rotary encoder |
| CN113374795A (en) * | 2020-03-09 | 2021-09-10 | 美国打桩设备公司 | Bearing cooling system and method for vibratory pile driver |
| CN113494534A (en) * | 2021-09-01 | 2021-10-12 | 陕西飞机工业有限责任公司 | Bearing cover of bearing of rudder support |
-
2014
- 2014-06-13 CN CN201420317843.XU patent/CN203892389U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482763A (en) * | 2015-08-28 | 2017-03-08 | 发那科株式会社 | Rotary encoder |
| CN113374795A (en) * | 2020-03-09 | 2021-09-10 | 美国打桩设备公司 | Bearing cooling system and method for vibratory pile driver |
| CN113374795B (en) * | 2020-03-09 | 2024-05-10 | 美国打桩设备公司 | Bearing cooling system and method for vibratory pile driver |
| CN113494534A (en) * | 2021-09-01 | 2021-10-12 | 陕西飞机工业有限责任公司 | Bearing cover of bearing of rudder support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012177507A3 (en) | Turbocharger with air buffer seal | |
| CN203892389U (en) | End cover and corresponding sealing structure | |
| BR112014013673A2 (en) | sealing system of an adjacent outer volume oil chamber and turbine engine provided with such sealing system | |
| CN205479859U (en) | Two pass gas -liquid rotary joint | |
| WO2015022099A8 (en) | Receptacle comprising a shaft housing | |
| CN204329585U (en) | The carbon seal ring hermetically-sealed construction of rotary furnace | |
| CN105351366A (en) | Bearing end cap seal device | |
| CN203730718U (en) | Combined seal bearing end cover for speed reducer | |
| CN103115072B (en) | A kind of sealing configuration of oil-lubricated bearing | |
| CN202065219U (en) | Bracket device for slurry pump | |
| CN204436787U (en) | A kind of double-deck slide plate rolling rotor type compressor | |
| WO2018117276A8 (en) | Screw compressor | |
| CN204061551U (en) | Film spreading machine pack roller sealed bearing structure | |
| CN102345602B (en) | Fluid machine | |
| MX2015007908A (en) | Journal bearing. | |
| CN206503716U (en) | Compressor bracket, compressor and electric automobile | |
| CN102384167A (en) | Pressure release type sealing deep groove ball bearing | |
| CN204783645U (en) | Single helical -lobe compressor is used to chemical industry | |
| CN105317846B (en) | Floating sealing | |
| CN204611224U (en) | A kind of engine flywheel housing assy with built-in oil leab | |
| CN204344682U (en) | Axle sleeve | |
| CN204003372U (en) | Automotive air conditioner compressor front cover | |
| CN202108877U (en) | Pressure relief type sealing deep groove ball bearing | |
| CN202469006U (en) | Simple shaft sealing device | |
| CN203596698U (en) | External rotor motor |
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: 20141022 |