CN105526358A - Sealing assembly for bearing - Google Patents
Sealing assembly for bearing Download PDFInfo
- Publication number
- CN105526358A CN105526358A CN201410514782.0A CN201410514782A CN105526358A CN 105526358 A CN105526358 A CN 105526358A CN 201410514782 A CN201410514782 A CN 201410514782A CN 105526358 A CN105526358 A CN 105526358A
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- Prior art keywords
- bearing
- face
- axle
- end surface
- black box
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Abstract
The invention discloses a sealing assembly for a bearing. The sealing assembly comprises a bearing retainer (30), a friction ring (40) and a housing (50), wherein the bearing retainer (30) comprises a first abutment end surface (32) and a second abutment end surface (34), the first abutment end surface (32) is capable of abutting against the axial end surface of a bearing (20), and the bearing retainer can be driven to rotate; the friction ring (40) comprises a contact end surface (42), a friction end surface (44), an outer peripheral surface (46), and an inner peripheral surface (48), and the friction end surface is capable of abutting against the second abutment end surface, and forming relative friction slide with the second abutment end surface; and the housing (50) comprises a connection end surface (52), a sealing end surface (54), and a support end surface (56), the connection end surface is capable of sleeving an outer ring of the bearing, and abutting against the outer peripheral surface of the friction ring, the sealing end surface is capable of sealing lubricant oil attached to the peripheral surface of a shaft, and the support end surface is capable of applying a support force for the bearing retainer towards the friction along the axial direction of the shaft. With the adoption of the sealing assembly, leakage of the lubricant oil of the bearing can be reduced.
Description
Technical field
The present invention relates to a kind of black box of lubricant oil, particularly relate to a kind of black box for lubricant oil in stuffing box bearing.
Background technique
In order to prevent the oil leakage for bearing lubrication, in bearing, be typically provided with the black box of lubricant oil.Fig. 1 shows a kind of common bearing unit.As shown in Figure 1, bearing unit comprises a bearing gear 70 and an enclosing cover 72.Wherein, bearing 74 is sheathed on axle 76.Bearing gear 70 is arranged between enclosing cover 72 and axle 76, and is resisted against the axial end of bearing 74.Labyrinth seal structure is provided with between enclosing cover 72 and axle 76.Lubricant oil can be contained in bearing 74, bearing gear 70 and the space that encloses of enclosing cover 72.Axle 76, in the process of rotating, dynamic bearing can be with to keep off 70 and rotate together, and enclosing cover 72 can not rotate relative to axle 76.In order to avoid bearing gear 70 rubs with enclosing cover 72, along the radial direction of axle 76, be provided with gap between bearing gear 70 and enclosing cover 72, lubricant oil can pass through this gap and labyrinth seal structure seepage.
Summary of the invention
The object of this invention is to provide a kind of black box of bearing, the oil seepage that it can reduce.
The invention provides a kind of black box of bearing, its middle (center) bearing can be resisted against the shaft shoulder of axle.Black box comprises bearing gear, a friction ring and a shell.Bearing gear can be sheathed on axle, and it comprises one first, and against end face and one second, against end face, first can be resisted against the axial end of bearing against end face, and bearing gear can be driven by axle and rotate.Friction ring can be surrounded on axle, it comprise one contact end face, abrasive end face, an outer circumferential face and an inner peripheral surface, abrasive end face can be resisted against second against end face and both can Relative friction slide.Shell comprises a connecting end surface, a seal face and a support end face.Connecting end surface can be socketed on bearing outer ring, and it can be resisted against outer circumferential face.Seal face can seal the lubricant oil being attached to axle side face.It can apply a support force towards bearing gear along the axial of axle to friction ring to support end face.
In another schematic mode of execution of the black box of bearing, black box also comprises a plurality of supported spring be arranged between support end face and contact end face, and supported spring can produce towards the elastic force of bearing.
In the schematic mode of execution of the another kind of the black box of bearing, between seal face and the side face of axle, there is labyrinth seal structure.
In another schematic mode of execution of the black box of bearing, friction ring is prepared from by graphite.
In another schematic mode of execution of the black box of bearing, between inner peripheral surface and the side face of axle, be provided with gap.
Accompanying drawing explanation
The following drawings only schematically illustrates the present invention and explains, not delimit the scope of the invention.
Fig. 1 shows a kind of existing bearing unit.
Fig. 2 is for illustration of the structural representation of a kind of exemplary embodiment of black box of bearing.
Fig. 3 shows after the black box assembling of Fig. 2 middle (center) bearing along the generalized section of III-III line in Fig. 2.。
Label declaration
10 axles
20 bearings
30 bearing gears
32 first against end face
34 second against end face
40 friction rings
42 contact end faces
44 abrasive end faces
46 outer circumferential faces
48 inner peripheral surfaces
50 shells
52 connecting end surfaces
54 seal faces
56 support end face
60 support paralysis
70 bearing gears
72 enclosing covers
74 bearings
76 axles.
Embodiment
In order to the technical characteristics to invention, object and effect have understanding clearly, now contrast accompanying drawing and the specific embodiment of the present invention is described, label identical in the various figures represents identical part.
In this article, " schematically " expression " serves as example, example or explanation ", not should by being described to any diagram of " schematically " in this article, mode of execution is interpreted as a kind of preferred or have more the technological scheme of advantage.
For making simplified form, only schematically show part related to the present invention in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of same structure or function in some figure, only schematically depict one of them, or only marked one of them.
In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".
In this article, " first ", " second " etc. only for differentiation each other, but not represent their significance level and order and the prerequisite etc. that exists each other.In this article, " axis " is the axis of axle 10, and " radial direction " is the radial direction of axle 10.
Fig. 2 is for illustration of the decomposing schematic representation of the black box exemplary embodiment of bearing.Fig. 3 shows after the black box assembling of Fig. 2 middle (center) bearing along the generalized section of III-III line in Fig. 2.See Fig. 2 and Fig. 3, the black box of bearing comprises bearing gear 30, friction ring 40 and a shell 50.Wherein, bearing 20 is socketed on axle 10, and bearing 20 is resisted against the shaft shoulder of axle 10.Axle 10 and bearing 20 can be the known structures of any one, do not repeat them here.
Bearing gear 30 is ring assembling structure, and is sheathed on axle 10.The structure that bearing gear 30 is connected to axle 10 can ensure gapless between bearing gear 30 and the side face of axle 10, thus avoids lubricant oil along the gap seepage between bearing gear 30 and axle 10.Bearing gear 30 comprises one first against end face 32 and one second against end face 34.First can be resisted against the axial end of bearing 20 against end face 32, and as shown in Figure 3, first is resisted against the inner ring of bearing 20 against end face 32.When axle 10 is with dynamic bearing 20 to rotate, because first against the friction between end face 32 and bearing 20 axial end, make axle 10 that dynamic bearing can be with to keep off 30 and rotate, namely bearing gear 30 is rotating ring.Bearing gear 30 can prevent bearing 20 from moving relative to axle 10 vertically.
Friction ring 40 is surrounded on axle 10.Friction ring 40 comprises contact end face 42, abrasive end face 44, outer circumferential face 46 and an inner peripheral surface 48.Abrasive end face 44 is towards bearing gear 30, and abrasive end face 44 can be resisted against second against end face 34.Contact end face 42 is bearing gear 30 dorsad.Inner peripheral surface 48 is towards axle 10, in a kind of exemplary embodiment of the black box of bearing, gap is there is between inner peripheral surface 48 and axle 10, namely inner peripheral surface 48 does not have the circumferential contact with axle 10, the area contacting end face 42 and abrasive end face 44 can be reduced like this, thus reduce abrasive end face 44 and second further against the frictional force between end face 34.When axle 10 rotates, friction ring 40 can not be driven by axle 10 and rotate, and namely friction ring 40 is stationary ring.In addition, when bearing gear 30 rotates, second can relative to abrasive end face 44 friction slip against end face 34, and surface friction drag between them is very little.In a kind of exemplary embodiment of the friction component of bearing, friction ring 40 entirety is prepared from by the graphite material with good friction performance, thus makes friction ring 40 have lubricating function.
Shell 50 can be mounted on the equipment using axle 10 and bearing 20.Shell 50 comprises a connecting end surface 52, seal face 54 and a support end face 56.Connecting end surface 52 can be socketed on the outer ring of bearing 20.Seal face 54 is towards axle 10, and there is gap between the side face of seal face 54 and axle 10, in order to avoid lubricant oil seepage from this gap, sealing configuration is provided with between the side face of seal face 54 and axle 10, in a kind of exemplary embodiment of the black box of bearing, seal face 54 is provided with labyrinth seal structure, thus the sealing between the side face realizing seal face 54 and axle 10.Outer circumferential face 46 can be resisted against connecting end surface 52.Support end face 56 and can apply an axial support force towards bearing gear 30 along axle 10 in friction ring 40, abrasive end face 44 is contacted against end face 34 closely with second all the time, avoids lubricant oil from abrasive end face 44 and second against the gap seepage between end face 34 thus.
In a kind of exemplary embodiment of the black box of bearing, the black box of bearing is provided with multiple supported spring 60.These supported springs 60 are arranged on contact end face 42 and support between end face 56, and uniform along the circumference supporting end face 56.One end of these supported springs 60 is resisted against contact end face 42, and their the other end is resisted against and supports end face 56.These supported springs 60 are in its pre-compressed state, make them that elastic restoring force can be provided in friction ring 40, thus ensure that abrasive end face 44 closely contacts against end face 34 with second.
In the black box of bearing, lubricant oil for bearing lubrication is sealed in shell, bearing and bearing and keeps off in the space enclosed, and abrasive end face 44 can be posted by closely all the time due to second against end face 34, lubricant oil can not be permeated from second against the gap between end face 34 and abrasive end face 44, even if second rotates relative to abrasive end face 44 against end face 34 and cause abrasive end face 44 and/or second to wear and tear against end face 34, the support force that shell 50 puts on friction ring 40 still can ensure that second is posted by abrasive end face 44 all the time closely against end face 34.
Be to be understood that, although this specification describes according to each mode of execution, but not 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 by specification integrally, technological scheme in each mode of execution also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility mode of execution of the present invention; they are also not used to limit the scope of the invention; allly do not depart from the skill of the present invention equivalent embodiments done of spirit or change; as the combination of feature, segmentation or repetition, all should be included within protection scope of the present invention.
Claims (5)
1. the black box of bearing, its middle (center) bearing (20) can be resisted against the shaft shoulder of axle (10), it is characterized in that the black box of described bearing comprises:
A bearing that can be sheathed on axle (10) keeps off (30), it comprises one first against end face (32) and one second against end face (34), described first can be resisted against the axial end of bearing (20) against end face (32), and described bearing gear (30) can be driven by axle (10) and rotate;
A friction ring (40) that can be surrounded on axle (10), it comprise one contact end face (42), abrasive end face (44), an outer circumferential face (46) and an inner peripheral surface (48), described abrasive end face (44) can be resisted against described second against end face (34) and both can Relative friction slide; With
A shell (50), it comprises:
A connecting end surface (52) that can be socketed on bearing (20) outer ring, it can be resisted against described outer circumferential face (46),
A seal face (54) that can seal the lubricant oil being attached to axle (10) side face, and
One supports end face (56), and it can along the support force axially keeping off (30) to described friction ring (40) applying one towards bearing of axle (10).
2. the black box of bearing as claimed in claim 1, characterized by further comprising a plurality of supported spring (60) be arranged between described support end face (56) and described contact end face (42), and described supported spring (60) can produce towards the elastic force of bearing (20).
3. the black box of bearing as claimed in claim 1, has labyrinth seal structure between the side face that it is characterized in that described seal face (54) and axle (10).
4. the black box of bearing as claimed in claim 1, is characterized in that described friction ring (40) is prepared from by graphite.
5. the black box of bearing as claimed in claim 1, is provided with gap between the side face that it is characterized in that described inner peripheral surface (48) and axle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410514782.0A CN105526358A (en) | 2014-09-29 | 2014-09-29 | Sealing assembly for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410514782.0A CN105526358A (en) | 2014-09-29 | 2014-09-29 | Sealing assembly for bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105526358A true CN105526358A (en) | 2016-04-27 |
Family
ID=55768766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410514782.0A Pending CN105526358A (en) | 2014-09-29 | 2014-09-29 | Sealing assembly for bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105526358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108214271A (en) * | 2017-12-29 | 2018-06-29 | 厦门健搏自动化科技有限公司 | Steel pipe class polishes machine bearing dustproof and waterproof structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199271A (en) * | 1977-03-31 | 1980-04-22 | Wacker Werke Gmbh & Co Kg | Device for sealing V-belt and pulley in plate jarring devices |
| CN2050509U (en) * | 1989-04-07 | 1990-01-03 | 武汉工业大学 | Mechanical sealing device for rotary reciprocatable shaft |
| CN200968421Y (en) * | 2006-11-20 | 2007-10-31 | 河南省中原大化集团有限责任公司 | Bellow type machine oil seal |
| CN201068979Y (en) * | 2007-07-09 | 2008-06-04 | 董世军 | Roller bearing seal device |
| CN201772065U (en) * | 2010-08-20 | 2011-03-23 | 上海市离心机械研究所有限公司 | Sealing ring for bearing seat |
| CN201873284U (en) * | 2010-11-29 | 2011-06-22 | 江苏紫光吉地达环境科技股份有限公司 | Novel conveyor bearing block |
| CN202182114U (en) * | 2011-06-22 | 2012-04-04 | 栾清杨 | Labyrinth seal bearing |
| CN102563076A (en) * | 2012-02-28 | 2012-07-11 | 苏州市吴中区东方成套电器设备有限公司 | Shaft seal device |
| CN203189736U (en) * | 2013-03-18 | 2013-09-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Output shaft sealing device |
-
2014
- 2014-09-29 CN CN201410514782.0A patent/CN105526358A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199271A (en) * | 1977-03-31 | 1980-04-22 | Wacker Werke Gmbh & Co Kg | Device for sealing V-belt and pulley in plate jarring devices |
| CN2050509U (en) * | 1989-04-07 | 1990-01-03 | 武汉工业大学 | Mechanical sealing device for rotary reciprocatable shaft |
| CN200968421Y (en) * | 2006-11-20 | 2007-10-31 | 河南省中原大化集团有限责任公司 | Bellow type machine oil seal |
| CN201068979Y (en) * | 2007-07-09 | 2008-06-04 | 董世军 | Roller bearing seal device |
| CN201772065U (en) * | 2010-08-20 | 2011-03-23 | 上海市离心机械研究所有限公司 | Sealing ring for bearing seat |
| CN201873284U (en) * | 2010-11-29 | 2011-06-22 | 江苏紫光吉地达环境科技股份有限公司 | Novel conveyor bearing block |
| CN202182114U (en) * | 2011-06-22 | 2012-04-04 | 栾清杨 | Labyrinth seal bearing |
| CN102563076A (en) * | 2012-02-28 | 2012-07-11 | 苏州市吴中区东方成套电器设备有限公司 | Shaft seal device |
| CN203189736U (en) * | 2013-03-18 | 2013-09-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Output shaft sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108214271A (en) * | 2017-12-29 | 2018-06-29 | 厦门健搏自动化科技有限公司 | Steel pipe class polishes machine bearing dustproof and waterproof structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160427 |