CN103953652A - Eccentric bearing seal sleeve and assemblies thereof - Google Patents
Eccentric bearing seal sleeve and assemblies thereof Download PDFInfo
- Publication number
- CN103953652A CN103953652A CN201410168909.8A CN201410168909A CN103953652A CN 103953652 A CN103953652 A CN 103953652A CN 201410168909 A CN201410168909 A CN 201410168909A CN 103953652 A CN103953652 A CN 103953652A
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- bearing
- seal
- eccentric
- sealing configuration
- bearing support
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- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses an eccentric bearing seal sleeve and assemblies thereof. The coaxiality deviation e of a bearing seat is compensated through a self eccentric amount e, so that the bearing is coaxial with a transmission shaft; meanwhile, through three-stage sealing of a labyrinth seal, an VD type rubber seal ring and a lip-shaped seal ring, the seal performance between the bearing and the transmission shaft is guaranteed to the greatest extent, the abrasion of the bearing is alleviated and the service life is prolonged.
Description
Technical field
The invention belongs to mechanical transmissioning technology field, particularly a kind of with eccentric bearing seal cover and assembly thereof.
Background technique
Associated sealing arrangement for bearings is a kind of component conventional in mechanical transmission, plays seal action and the bearing positioning action of protection bearing, isolated foreign material in transmission system.In transmission system, usually occur because machining accuracy is low, cause one group of bearing support coaxality not reach the phenomenon of requirement, cause transmission shaft and bearing to install; Or after installation, there is eccentric, stuck phenomenon in transmission shaft and bearing reluctantly.
Summary of the invention
Not up to standard in order to overcome above-mentioned prior art bearing support coaxality, transmission shaft and bearing cannot be installed, or reluctantly after installation, there is eccentric, stuck shortcoming in transmission shaft and bearing, the invention provides a kind ofly with eccentric bearing seal cover and assembly thereof, make not reach while requiring when bearing support coaxality, by the eccentric characteristic of associated sealing arrangement for bearings, the final coaxality that ensures transmission shaft and bearing, makes transmission system reliable steadily.
The present invention is achieved through the following technical solutions:
With an eccentric bearing seal cover, between bearing and bearing support, comprise body and sealing configuration, body is tubular structure, sealing configuration is positioned at inner side, body one end, is labyrinth seal; The relative bearing of stuffing box gland has offset-e, the eccentric amount e opposite direction of offset-e and the relative bearing of bearing support.
Further, sealing configuration also comprises V
dtype rubber seal and lip-shaped sealed ring, V
dtype rubber seal is positioned at described labyrinth seal inner side, and lip-shaped sealed ring is positioned at described V
dtype rubber seal inner side.
Further, the axial section of body sidewall is Z-shaped, and its middle part level is placed between bearing and bearing support, and two ends projection is stuck in bearing inner end and bearing support outboard end, and sealing configuration is positioned at the projection of body one end.
Further, in body sidewall, be provided with asphalt channel, asphalt channel extends to the projection at two ends along the Z-shaped structure of body sidewall, and asphalt channel one end is filler opening, and the other end is communicated with sealing configuration; Asphalt channel also extends on the surface of contact of body and bearing support.
The present invention also discloses a kind of with eccentric bearing seal assembly, comprise bearing, bearing support, axle sleeve one, axle sleeve two, and end cap, also comprise with eccentric bearing seal cover, axle sleeve two and axle sleeve one are enclosed within roller end successively, and bearing is between axle sleeve one and axle sleeve two, and bearing seat is in bearing outside, with eccentric bearing seal cover, between bearing and bearing support, end cap is bolted on eccentric bearing seal cover outboard end.
Further, comprise body and sealing configuration with eccentric bearing seal cover, body is tubular structure, and sealing configuration is positioned at the inner side of body away from end cap one end, is labyrinth seal; There is offset-e with the relative bearing of eccentric bearing seal cover, the eccentric amount e opposite direction of described offset-e and the relative bearing of bearing support.
Further, sealing configuration also comprises V
dtype rubber seal and lip-shaped sealed ring, V
dtype rubber seal is positioned at described labyrinth seal inner side, and lip-shaped sealed ring is positioned at described V
dtype rubber seal inner side.
Further, the axial section of body sidewall is Z-shaped, and its middle part level is placed between bearing and bearing support, and two ends projection is stuck in bearing inner end and bearing support outboard end, sealing configuration is positioned at body away from end cap one end, and is stuck in the projection of bearing inner end.
Further, in body sidewall, be provided with asphalt channel, asphalt channel extends to the projection at two ends along the Z-shaped structure of body sidewall, and asphalt channel one end is filler opening, and the other end is communicated with sealing configuration; Asphalt channel also extends on the surface of contact of body and bearing support, and on the surface of contact of body and end cap.
Further, between end cap and axle sleeve one, be also provided with lip-shaped sealed ring, between projection, be also provided with distance ring inside bearing and body.
The present invention carrys out the coaxiality deviation e of compensating shaft bearing by the offset-e carrying, make bearing support and transmission shaft coaxial.Simultaneously by labyrinth seal, V
dthree grades of sealings of type rubber seal and lip-type packing, at utmost ensure the sealing between bearing and transmission shaft, reduce the wearing and tearing of bearing, increase the service life.
Brief description of the drawings
Fig. 1 is the structural representation with eccentric bearing seal cover in the present invention;
Fig. 2 is the sectional views of transmission shaft two ends while being all provided with eccentric bearing seal assembly.
Wherein, 1: axle sleeve one; 2: lip-type packing; 3: end cap; 4: body; 5: bearing support; 6: axle sleeve two; 7: transmission shaft; 8:V
dtype rubber seal; 9: distance ring; 10: bearing; 11: with eccentric bearing seal cover; 12: asphalt channel; 13: labyrinth seal; 14: the axis of bearing support, eccentric bushing; 15: the axis of bearing; E: the offset of the relative bearing of bearing support;-e: the offset of the relative bearing of stuffing box gland.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
The invention provides a kind ofly with eccentric bearing seal cover, with reference to Fig. 1, between bearing 10 and bearing support 5, comprise body 4 and sealing configuration, body 4 is tubular structure, and sealing configuration is positioned at body 4 inner sides, one end, is labyrinth seal 13; The relative bearing 10 of stuffing box gland has offset-e, the eccentric amount e opposite direction of offset-e bearing 10 relative to bearing support 5.
Bearing support 5 is when span L is large and machining accuracy is low, the coaxiality deviation that causes one group of bearing support 5 is e, now carry out compensating coaxial degree deviation e by the offset-e of the bearing seal cover with eccentric, under ideal condition-and e is while equating with e, mounted one group of bearing support 5 and transmission shaft 7 are coaxial.Labyrinth seal 13 is simultaneously equivalent between the interior external world, be provided with some obstructs, obstacle, prevents that introduced contaminants from entering, and internal grease flows out, and plays seal action.
In another embodiment, as shown in Figure 1 and Figure 2, sealing configuration also comprises V
dtype rubber seal 8, V
dtype rubber seal 8 is positioned at described labyrinth seal 13 inner sides.V
dtype rubber seal 8 is a kind of rubber seal that are shaped as V-type, has a rubber lip stretching out, and can stop rubber lip foreign matter to enter, and plays seal action.
In another embodiment, as shown in Figure 1 and Figure 2, sealing configuration also comprises lip-shaped sealed ring 2, and lip-shaped sealed ring 2 is positioned at described V
dtype rubber seal 8 inner sides.At labyrinth seal 13 and V
don the basis of type rubber seal 8, lip-shaped sealed ring 2 is further set, forms three grades of sealings, at utmost ensure the sealing between bearing 10 and transmission shaft 7, reduce the wearing and tearing of bearing 10, increase the service life.
In another embodiment, as shown in Figure 1 and Figure 2, the axial section of body 4 sidewalls of bearing seal cover is Z-shaped, its middle part level is placed between bearing 10 and bearing support 5, two ends projection is stuck in bearing 10 inner ends and bearing support 5 outboard end, and sealing configuration is positioned at the projection of body 4 one end.This structure can ensure the stability after stuffing box gland is installed well, also can limit the relative position of bearing 10 and bearing support 5 simultaneously, and itself just has certain sealing its structure, can prevent that introduced contaminants from entering by the gap of surface of contact each other.
On the basis of above-described embodiment, in body 4 sidewalls, be provided with asphalt channel 12, asphalt channel 12 extends to the projection at two ends along the Z-shaped structure of body 4 sidewalls, and asphalt channel 12 one end are filler opening, and the other end is communicated with sealing configuration.Add lubricant oil by filler opening to stuffing box gland is inner, and enter the end of sealing configuration along asphalt channel 12, further play sealing process.
In another embodiment, as shown in Figure 1 and Figure 2, this asphalt channel 12 also extends on the surface of contact of body 4 and bearing support 5, and the surface of contact of stuffing box gland and bearing support 5 is lubricated, and reduces the friction between the two.
The present invention also discloses a kind of with eccentric bearing seal assembly, as shown in Figure 2, comprise bearing 10, bearing support 5, axle sleeve 1, axle sleeve 26, with end cap 3, also comprise with eccentric bearing seal cover 11, axle sleeve 26 and axle sleeve 1 are enclosed within roller end successively, bearing 10 is between axle sleeve 1 and axle sleeve 26, bearing support 5 is positioned at bearing 10 outsides, and with eccentric bearing seal cover 11, between bearing 10 and bearing support 5, end cap 3 is bolted on eccentric bearing seal cover 11 outboard end.
When design and installation, can adopt with eccentric bearing seal assembly in transmission shaft 7 one end, the other end adopts uninfluenced bearing seal assembly, only by carry out the coaxiality deviation of compensating shaft bearing 5 with eccentric bearing seal assembly.Dotted portion is the axis 14 of bearing support, eccentric bushing, the axis 15 that solid line part is bearing.In the time that coaxiality deviation is larger, also can all adopts with eccentric bearing seal assembly and carry out compensating coaxial degree deviation at transmission shaft 7 two ends.Because the eccentric amount e of two end axles bearing 5 is likely different, therefore the offset-e of the bearing seal assembly of two ends band bias also can be different.Can select to have according to the eccentric amount e of bearing support 5 bearing seal assembly of appropriate eccentric amount-e.
Wherein, comprise body 4 and sealing configuration with eccentric bearing seal cover, body 4 is tubular structure, and sealing configuration is positioned at the inner side of body 4 away from end cap 3 one end, is labyrinth seal 13; There is offset-e with the relative bearing of eccentric bearing seal cover, the eccentric amount e opposite direction of offset-e bearing 10 relative to bearing support 5.In practice, can design as required different offset-e, carry out the supporting bearing support 5 with different offset-e.
In another embodiment, as shown in Figure 1 and Figure 2, sealing configuration also comprises V
dtype rubber seal 8, V
dtype rubber seal 8 is positioned at described labyrinth seal 13 inner sides.V
dtype rubber seal 8 is a kind of rubber seal that are shaped as V-type, has a rubber lip stretching out, and can stop rubber lip foreign matter to enter, and plays seal action.
In another embodiment, as shown in Figure 1 and Figure 2, sealing configuration also comprises lip-shaped sealed ring 2, and lip-shaped sealed ring 2 is positioned at described V
dtype rubber seal 8 inner sides.At labyrinth seal 13 and V
don the basis of type rubber seal 8, lip-shaped sealed ring 2 is further set, forms three grades of sealings, at utmost ensure the sealing between bearing 10 and transmission shaft 7, reduce the wearing and tearing of bearing 10, increase the service life.
In another embodiment, as shown in Figure 1 and Figure 2, the axial section of body 4 sidewalls of bearing seal cover is Z-shaped, its middle part level is placed between bearing 10 and bearing support 5, two ends projection is stuck in bearing 10 inner ends and bearing support 5 outboard end, sealing configuration is positioned at body 4 away from end cap 3 one end, and is stuck in the projection of bearing 10 inner ends.This structure can ensure the stability after stuffing box gland is installed well, also can limit the relative position of bearing 10 and bearing support 5 simultaneously, and itself just has certain sealing its structure, can prevent that introduced contaminants from entering by the gap of surface of contact each other.
On the basis of above-described embodiment, in body 4 sidewalls, be provided with asphalt channel 12, asphalt channel 12 extends to the projection at two ends along the Z-shaped structure of body 4 sidewalls, and asphalt channel 12 one end are filler opening, and the other end is communicated with sealing configuration.Add lubricant oil by filler opening to stuffing box gland is inner, and enter the end of sealing configuration along asphalt channel 12, further play sealing process.
In another embodiment, as shown in Figure 1 and Figure 2, asphalt channel 12 also extends on the surface of contact of body 4 and bearing support 5, and on the surface of contact of body 4 and end cap 3.The surface of contact that meets surface of contact, stuffing box gland and end cap 3 to stuffing box gland and bearing support 5 is lubricated, and reduces the friction between the two.Also play to a certain extent seal action simultaneously.
In another embodiment, as shown in Figure 2, between end cap 3 and axle sleeve 1, be also provided with lip-shaped sealed ring 2, the gap between end cap 3 and axle sleeve 1 is sealed, prevent that introduced contaminants from entering.
In another embodiment, as shown in Figure 2, between bearing 10 and body 4 inner side projections, be also provided with distance ring 9, axially locating is carried out in bearing 10 outer rings, accurately control the distance of the relative axle sleeve 1 of bearing 10, axle sleeve 26.
Bearing seal cover of the present invention and assembly carry out the coaxiality deviation e of compensating shaft bearing 5 by the offset-e carrying, make bearing support 5, bearing 10 all and transmission shaft 7 coaxial.Simultaneously by labyrinth seal 13, V
dthree grades of sealings of type rubber seal 8 and lip-type packing 2, at utmost ensure the sealing between bearing 10 and transmission shaft 7, reduce the wearing and tearing of bearing 10, increase the service life.
Claims (10)
1. with an eccentric bearing seal cover, between bearing and bearing support, it is characterized in that, comprise body and sealing configuration, described body is tubular structure, and described sealing configuration is positioned at inner side, body one end, is labyrinth seal; The relative bearing of described stuffing box gland has offset-e, the eccentric amount e opposite direction of described offset-e and the relative bearing of bearing support, equal and opposite in direction.
2. bearing seal cover according to claim 1, is characterized in that, described sealing configuration also comprises V
dtype rubber seal and lip-shaped sealed ring, described V
dtype rubber seal is positioned at described labyrinth seal inner side, and described lip-shaped sealed ring is positioned at described V
dtype rubber seal inner side.
3. bearing seal cover according to claim 2, it is characterized in that, the axial section of described body sidewall is Z-shaped, its middle part level is placed between bearing and bearing support, two ends projection is stuck in bearing inner end and bearing support outboard end, and described sealing configuration is positioned at the projection of body one end.
4. bearing seal cover according to claim 3, it is characterized in that, in described body sidewall, be provided with asphalt channel, described asphalt channel extends to the projection at two ends along the Z-shaped structure of body sidewall, described asphalt channel one end is filler opening, and the other end is communicated with sealing configuration; Described asphalt channel also extends on the surface of contact of body and bearing support.
5. one kind with eccentric bearing seal assembly, comprise bearing, bearing support, axle sleeve one, axle sleeve two, and end cap, it is characterized in that, also comprise with eccentric bearing seal cover, described axle sleeve two and axle sleeve one are enclosed within roller end successively, described bearing is between axle sleeve one and axle sleeve two, described bearing seat is in bearing outside, and the eccentric bearing seal cover of described band is between bearing and bearing support, and described end cap is bolted on eccentric bearing seal cover outboard end.
6. bearing seal assembly according to claim 5, is characterized in that, the eccentric bearing seal cover of described band comprises body and sealing configuration, and described body is tubular structure, and described sealing configuration is positioned at the inner side of body away from end cap one end, is labyrinth seal; The eccentric relative bearing of bearing seal cover of described band has offset-e, the eccentric amount e opposite direction of described offset-e and the relative bearing of bearing support.
7. bearing seal assembly according to claim 6, is characterized in that, described sealing configuration also comprises V
dtype rubber seal and lip-shaped sealed ring, described V
dtype rubber seal is positioned at described labyrinth seal inner side, and described lip-shaped sealed ring is positioned at described V
dtype rubber seal inner side.
8. bearing seal assembly according to claim 7, it is characterized in that, the axial section of described body sidewall is Z-shaped, its middle part level is placed between bearing and bearing support, two ends projection is stuck in bearing inner end and bearing support outboard end, described sealing configuration is positioned at body away from end cap one end, and is stuck in the projection of bearing inner end.
9. bearing seal assembly according to claim 8, it is characterized in that, in described body sidewall, be provided with asphalt channel, described asphalt channel extends to the projection at two ends along the Z-shaped structure of body sidewall, described asphalt channel one end is filler opening, and the other end is communicated with sealing configuration; Described asphalt channel also extends on the surface of contact of body and bearing support, and on the surface of contact of body and end cap.
10. bearing seal assembly according to claim 9, is characterized in that, between described end cap and axle sleeve one, is also provided with lip-shaped sealed ring, is also provided with distance ring inside described bearing and body between projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168909.8A CN103953652B (en) | 2014-04-25 | The bearing seal cover of band bias and assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168909.8A CN103953652B (en) | 2014-04-25 | The bearing seal cover of band bias and assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953652A true CN103953652A (en) | 2014-07-30 |
| CN103953652B CN103953652B (en) | 2016-11-30 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336102A (en) * | 2020-04-24 | 2020-06-26 | 浙江博大泵业有限公司 | Quick disassembly structure of displacement pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196059A (en) * | 1996-01-19 | 1997-07-29 | Nippon Seiko Kk | Rolling bearing unit with tone wheel |
| JP2005219154A (en) * | 2004-02-05 | 2005-08-18 | Okamoto Machine Tool Works Ltd | Seal structure of spindle device |
| CN1880802A (en) * | 2005-06-18 | 2006-12-20 | 刘海平 | Transmission with balance device |
| CN201416619Y (en) * | 2009-05-31 | 2010-03-03 | 胡菱菱 | Self-locking type speed reducer |
| CN101858353A (en) * | 2010-06-03 | 2010-10-13 | 浙江大学 | Controllable whirling device for centrifugal pump |
| CN201696233U (en) * | 2010-04-16 | 2011-01-05 | 辽宁中科天道新能源装备工业有限公司 | Main shaft system bearing sealing structure of megawatt double-fed asynchronous variable-speed wind generator |
| CN203109694U (en) * | 2012-12-25 | 2013-08-07 | 泉州佳泰数控有限公司 | Screw support bearing mounting device with seal mechanism |
| CN204004007U (en) * | 2014-04-25 | 2014-12-10 | 中国重型机械研究院股份公司 | With eccentric bearing seal cover and assembly thereof |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196059A (en) * | 1996-01-19 | 1997-07-29 | Nippon Seiko Kk | Rolling bearing unit with tone wheel |
| JP2005219154A (en) * | 2004-02-05 | 2005-08-18 | Okamoto Machine Tool Works Ltd | Seal structure of spindle device |
| CN1880802A (en) * | 2005-06-18 | 2006-12-20 | 刘海平 | Transmission with balance device |
| CN201416619Y (en) * | 2009-05-31 | 2010-03-03 | 胡菱菱 | Self-locking type speed reducer |
| CN201696233U (en) * | 2010-04-16 | 2011-01-05 | 辽宁中科天道新能源装备工业有限公司 | Main shaft system bearing sealing structure of megawatt double-fed asynchronous variable-speed wind generator |
| CN101858353A (en) * | 2010-06-03 | 2010-10-13 | 浙江大学 | Controllable whirling device for centrifugal pump |
| CN203109694U (en) * | 2012-12-25 | 2013-08-07 | 泉州佳泰数控有限公司 | Screw support bearing mounting device with seal mechanism |
| CN204004007U (en) * | 2014-04-25 | 2014-12-10 | 中国重型机械研究院股份公司 | With eccentric bearing seal cover and assembly thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336102A (en) * | 2020-04-24 | 2020-06-26 | 浙江博大泵业有限公司 | Quick disassembly structure of displacement pump |
| CN111336102B (en) * | 2020-04-24 | 2024-05-28 | 浙江博大泵业有限公司 | Quick disassembly structure of volumetric pump |
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