CN106555884A - The sealing structure and square plansifter of bearing assembly - Google Patents
The sealing structure and square plansifter of bearing assembly Download PDFInfo
- Publication number
- CN106555884A CN106555884A CN201510622167.6A CN201510622167A CN106555884A CN 106555884 A CN106555884 A CN 106555884A CN 201510622167 A CN201510622167 A CN 201510622167A CN 106555884 A CN106555884 A CN 106555884A
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- Prior art keywords
- bearing
- power transmission
- transmission shaft
- sealing structure
- bearing cap
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses the sealing structure and square plansifter of a kind of bearing assembly, the bearing assembly includes bearing block (5), the bearing (9) being installed in bearing block (5), the bearing cap (4) being fixed on the end face of the bearing (9), through the power transmission shaft (8) and the rotating part being arranged on the power transmission shaft (8) of the bearing (9) and bearing cap (4), wherein, the sealing structure includes the outside framework oil seal (3) being diametrically mounted between bearing cap (4) and the outer peripheral face of the power transmission shaft (8), and the labyrinth seal structure for rotatably coordinating is respectively formed with bearing cap (4) and rotating part annular end face relative to each other.Wherein, by the labyrinth seal structure formed between the outside framework oil seal that is arranged between power transmission shaft and bearing cap and bearing cap and rotating part, double sealing effect is produced, the dust debris such as fabric can be effectively prevented and entered Bearing inner; protection parts of bearings, increases the service life.
Description
Technical field
The present invention relates to field of bearings, in particular it relates to a kind of bearing cap black box and square plansifter.
Background technology
Square plansifter is one of capital equipment of fabric processing, due to due to working environment, square plansifter
Power transmission shaft easily occur at bearing flour into Bearing inner flour blockage problem, so as to affect axle
The service life held.
Traditional solution is to design bearing gland in bearing both sides, is added between bearing gland and power transmission shaft
Dynamic sealing part, to reaching the purpose of bearing seal.This kind of structure can prevent dust to enter in theory
Enter Bearing inner, but in actual moving process, square plansifter not do preferable plane rotation motion,
So still can there is phenomenon of a small amount of dust into Bearing inner.This is by the steady in a long-term of square plansifter
Operation has adverse effect on.
Accordingly, it would be desirable to a kind of structure enters bearing problem effectively to solve flour.
The content of the invention
It is an object of the invention to provide a kind of fabric that is prevented from is into the close of the bearing assembly of Bearing inner
Seal structure.
In addition, the purpose of the present invention also includes providing a kind of square plansifter, the bearing assembly of the square plansifter
Sealing structure be prevented from fabric and enter Bearing inner.
To achieve these goals, the present invention provides a kind of sealing structure of bearing assembly, the bearing assembly
Including bearing block, the bearing being installed in the bearing block, the bearing cap being fixed on the end face of the bearing,
Through the bearing and the power transmission shaft and the rotating part on the power transmission shaft of bearing cap, wherein, institute
State the bone that sealing structure includes being diametrically mounted between the outer peripheral face of the bearing cap and the power transmission shaft
Being respectively formed with frame oil sealing, and the bearing cap and rotating part annular end face relative to each other can
The labyrinth seal structure for rotatably coordinating.
Preferably, the rotating part is formed with regard to the power transmission shaft towards on the end face of the bearing cap
The centrosymmetric annular groove of central axis, and the bearing cap is towards shape on the end face of the rotating part
Into the centrosymmetric annular ridge of central axis for being related to the power transmission shaft, the annular ridge is contained in described
In annular groove.
Preferably, the inner peripheral surface of the bearing cap forms the ledge structure along the central axial direction, and
And internal diameter of the bearing cap adjacent to the part of the bearing is relatively small, so as to the bearing cap, described
Power transmission shaft and the bearing form the annular oil storage space around the power transmission shaft.
Preferably, the rotating part is rotating wheel, and the rotating wheel includes fixed cover located at the power transmission shaft
Central axle sleeve portion.
Preferably, the bearing assembly also includes the sleeve pipe for being sheathed on the power transmission shaft, the two ends of the sleeve pipe
The inner ring of the central axle sleeve portion and the bearing is pressed on respectively.
Preferably, centre bore of the described sleeve pipe through the bearing cap, and the outside framework oil seal is arranged on
Between the outer peripheral face of described sleeve pipe and the bearing cap.
Preferably, the rotating part is the sealing for being formed with through hole and fixed cover located at the power transmission shaft
Lid, is provided with sealing ring in the inner peripheral surface of the closure.
Preferably, the sealing structure also includes spring base of the fixed cover located at the power transmission shaft, the spring
Seat includes the cannula portion for being sheathed on the power transmission shaft, and wherein one end of the cannula portion presses on the bearing
Inner ring, described sleeve pipe portion pass through the closure.
Preferably, the spring base includes upper spring seat and lower spring cup, and the other end in described sleeve pipe portion connects
Be connected to the lower spring cup, the upper spring seat is fixedly connected on the power transmission shaft, the upper spring seat and
The lower spring cup is connected by bolt spacings ground, and the bolt is located at the upper spring seat and the lower bullet
Part between spring abutment is arranged with spring, and the two ends of the spring press on the upper spring seat respectively
With the lower spring cup.
In addition, present invention also offers a kind of square plansifter, wherein, the square plansifter be provided with according to
The sealing structure of the bearing assembly in upper scheme described in any one.
By above-mentioned technical proposal, by the outside framework oil seal that is arranged between power transmission shaft and bearing cap and axle
The labyrinth seal structure formed between lid and rotating part is held, double sealing effect is produced, effectively can be prevented
Only the dust debris such as fabric enter Bearing inner, protect parts of bearings, increase the service life.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of description, with
Detailed description below is used for explaining the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Fig. 1 is a kind of sealing structure of the bearing assembly of specific embodiment of the invention.
Fig. 2 is the sealing structure of the bearing assembly of another kind of specific embodiment of the invention.
Description of reference numerals
1 rotating wheel, 2 sleeve pipe
3 outside framework oil seal, 4 bearing cap
5 bearing block, 6 bearing block fixed plate
7 cannula portion, 8 power transmission shaft
9 bearing, 10 closure
11 fastening bolt, 12 upper spring seat
13 lower spring cup, 14 sealing ring
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that
Specific embodiment described herein is merely to illustrate and explains the present invention, is not limited to this
It is bright.
The invention provides a kind of sealing structure of bearing assembly, the bearing assembly includes bearing block 5, peace
Loaded on the bearing 9 in the bearing block 5, the bearing cap 4 being fixed on the end face of the bearing 9, through axle
The power transmission shaft 8 and the rotating part on the power transmission shaft 8 of 9 and bearing cap 4 are held, wherein, it is described
Sealing structure includes the outside framework oil seal 3 being diametrically mounted between the outer peripheral face of bearing cap 4 and power transmission shaft 8,
And it is respectively formed with bearing cap 4 and rotating part annular end face relative to each other and rotatably coordinates
Labyrinth seal structure.
Bearing 9 can be the bearing part of the common various ways in this area, and the bearing part can include can
The inner ring for rotating relative to one another and outer ring and rolling element, wherein, power transmission shaft 8 is arranged on the inner ring of bearing,
And bearing cap 4 can be fixed on the outer ring of bearing.The rotating part can be the groups such as rotating wheel or closure
Part, wherein, the rotating part is contacted with 4 formation face of bearing cap and forms face seal by labyrinth seal structure.
By outside framework oil seal and the double sealing effect of labyrinth seal structure, the dust of outside can be effectively prevented
Enter inside bearing assembly Deng debris, it is to avoid bearing assembly is damaged；Especially, when the bearing assembly application
In flour milling machine equipment, fabric can be effectively prevented into the inside of bearing, extend the service life of bearing.
Further, the rotating part is formed with regard in power transmission shaft 8 towards on the end face of bearing cap 4
The symmetrical annular groove of heart axis centre, and bearing cap 4 is formed with towards on the end face of the rotating part
With regard to the centrosymmetric annular ridge of central axis of power transmission shaft 8, it is recessed that the annular ridge is contained in the annular
Gap is formed in groove and each other.Positive fan can be respectively formed with the rotating part and bearing cap 4
Palace structure and cloudy labyrinth structure, the positive labyrinth structure can be the above annular ridge, the cloudy labyrinth
Structure can be above-described annular groove；Usually, sun can be formed on underlying part
Labyrinth structure and cloudy labyrinth structure is formed on part above, in the case, projected upwards
Positive labyrinth structure can be formed and stop the barrier jumped over of dust；Especially, structure of the invention is applied to
During square plansifter, bearing assembly is located on lower section, therefore bearing cap 4 and can form positive labyrinth structure, example
Such as annular ridge.Gap can be formed between annular groove and annular ridge, is on the one hand conducive to the rotating part
Rotate relative to bearing cap 4, on the other hand, the gap can enter Bearing inner along Bearing outer
Path becomes big and diminishes, and reduces gas kinetic energy by gas expansion and contraction, realizes sealing function.
In addition, the inner peripheral surface of bearing cap 4 forms the ledge structure along the central axial direction, and axle
Hold internal diameter of the lid 4 adjacent to the part of bearing 9 relatively small, so as to bearing cap 4, power transmission shaft 8 and axle
Hold annular oil storage space of 9 formation around power transmission shaft 8.As shown in Figure 1 or 2, bearing cap 4 is interior
Side face is broadly divided into two sections along the central axial direction, and the internal diameter of epimere is interior more than hypomere
Footpath, outside framework oil seal 3 may be mounted at the upper portion, therefore form described annular oil storage space.
Annular oil storage space can be aligned in the rolled portion of bearing 9, with any time to the rolled portion make-up oil.
The rotating part can be polytype part, the rotating wheel of such as described below or rotatable
Spring base etc..
A kind of specific embodiment of the invention, the rotating part are rotating wheel 1, and rotating wheel 1 wraps
Fixed cover is included located at the central axle sleeve portion of power transmission shaft 8.End face of the central axle sleeve portion towards bearing cap 4
On be formed with above-described labyrinth structure, can for example form annular groove.
In addition, the bearing assembly also includes the sleeve pipe 2 for being sheathed on power transmission shaft 8, the two ends of the sleeve pipe 2
The inner ring of the central axle sleeve portion and bearing 9 is pressed on respectively.Sleeve pipe 2 is fixed on power transmission shaft 8 with transmission
Axle 8 synchronously rotates, and can play a part of positioning, that is, determine rotating wheel 1 it is relative with bearing 9 away from
From.
Correspondingly, centre bore of the sleeve pipe 2 through bearing cap 4, and outside framework oil seal 3 is arranged on sleeve pipe 2
Outer peripheral face and bearing cap 4 between.
In addition, in the present embodiment, bearing block 5 can be connected with bearing block fixed plate 6 by bolt part
Connect, and installed in the correct position of equipment.Also, above-described bearing cap 4 is the bearing assembly
Upper ball cover, and the bearing assembly also include lower ball cover, as shown in figure 1, the structure of lower ball cover with
Bearing cap 4 is similar, by the gap between skeleton oil seal and power transmission shaft 8, but the end of lower ball cover
Labyrinth seal structure is not formed on face.
Another embodiment of the invention, the rotating part are arranged to be formed with through hole and fixation
In the closure 10 of power transmission shaft 8, sealing ring 14 in the inner peripheral surface of closure 10, is provided with.Such as Fig. 2
Shown, the internal diameter of the inner peripheral surface of closure 10 can be substantially equal to the external diameter of power transmission shaft 8 to improve sealing
Property, and the groove of annular can be formed on the inner peripheral surface of closure 10 to accommodate installation sealing ring 14,
Further to improve sealing.
In addition, the sealing structure also includes spring base of the fixed cover located at the power transmission shaft 8, the spring
Seat includes being sheathed on the cannula portion 7 of the power transmission shaft 8, and wherein one end of the cannula portion 7 presses on described
The inner ring of bearing 9, cannula portion 7 pass through closure 10.Cannula portion 7 is risen with above-described sleeve pipe 2
Effect it is similar, wherein, the upper end of cannula portion 7 is connected to the spring base and lower end presses on bearing
9 inner ring, so that it is determined that the relative position of the spring base and bearing 9.Correspondingly, 7 sets of cannula portion
Rotate between closure 10 and power transmission shaft 8 and synchronously；And outside framework oil seal 3 is pressed on cannula portion 7
Outer peripheral face formed sealing.In addition, closure 10 can be fixed on cannula portion 7 by fastening bolt 11
Outer peripheral face on.
Specifically, the spring base includes upper spring seat 12 and lower spring cup 13, cannula portion 7 it is another
End is connected to lower spring cup 13, and upper spring seat 12 is fixedly connected on the power transmission shaft 8, the upper spring
Seat 12 and lower spring cup 13 are connected by bolt spacings ground, and the bolt is located at the upper spring seat 12
And the part between lower spring cup 13 is arranged with spring, and the two ends of the spring press on respectively
Spring base 12 and lower spring cup 13.Upper spring seat 12 can be fixed on power transmission shaft 8, phase by bolt part
Ying Di, the outer peripheral face of power transmission shaft 8 are formed with the keyway for accommodating the bolt part, it is seen then that upper spring seat 12
Form axially and radially fixed with power transmission shaft 8；And lower spring cup 13 and cannula portion 7 and power transmission shaft 8
Between fixed by frictional force, axial a small amount of relative movement can be allowed, in actual use,
Size design between spring base and bearing 9 there may be error, in the presence of the spring, can be with
So that lower spring cup 13 has the trend for moving down, so that the lower end of cannula portion 7 presses on all the time
Bearing 9.In addition, the spring can be partially housed in the spiral shell of upper spring seat 12 and lower spring cup 13
In keyhole, and the internal diameter of the bolt hole can be more than the external diameter of bolt and form receiving space.
In addition, in the present embodiment, bearing cap 4 is the upper ball cover of the bearing assembly, and institute
State bearing assembly and be additionally provided with lower ball cover, as the lower end of power transmission shaft 8 does not protrude from bearing 9 substantially
Lower end, therefore the lower ball cover can be not provided with central shaft, form enclosed construction；In addition, bearing
Seat 5 is fixed by bearing block fixed plate 6.
In addition, present invention also offers a kind of square plansifter, wherein, the square plansifter is provided with top
The sealing structure of the bearing assembly in case described in any one.Wherein, it is applied to the bearing group of rotating wheel 1
Part can be installed on the upper end of power transmission shaft 8, and be applied to closure 10 and the spring seat bearing group
Part can be installed on the bottom of power transmission shaft 8.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited
Detail in above-mentioned embodiment, in the range of the technology design of the present invention, can be to the present invention
Technical scheme carry out various simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention are no longer separately illustrated to various possible compound modes.
Additionally, combination in any between a variety of embodiments of the present invention, can also be carried out, as long as its
Without prejudice to the thought of the present invention, which should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of sealing structure of bearing assembly, the bearing assembly include bearing block (5), are installed on this
Bearing (9), the bearing cap (4) being fixed on the end face of the bearing (9) in bearing block (5), wear
Cross the power transmission shaft (8) of the bearing (9) and bearing cap (4) and be arranged on the power transmission shaft (8)
Rotating part, it is characterised in that the sealing structure includes being diametrically mounted to the bearing cap (4)
And the outside framework oil seal (3) between the outer peripheral face of the power transmission shaft (8), and the bearing cap (4) and
The labyrinth seal knot for rotatably coordinating is respectively formed with rotating part annular end face relative to each other
Structure.
2. sealing structure according to claim 1, it is characterised in that the rotating part is towards institute
It is formed with the end face for stating bearing cap (4) centrosymmetric with regard to the central axis of the power transmission shaft (8)
Annular groove, and the bearing cap (4) is formed with regard to described towards on the end face of the rotating part
The centrosymmetric annular ridge of central axis of power transmission shaft (8), it is recessed that the annular ridge is contained in the annular
In groove.
3. sealing structure according to claim 1, it is characterised in that the bearing cap (4)
Inner peripheral surface forms the ledge structure along the central axial direction, and the neighbouring institute of the bearing cap (4)
The internal diameter for stating the part of bearing (9) is relatively small, so as to the bearing cap (4), the power transmission shaft (8)
And the bearing (9) forms the annular oil storage space around the power transmission shaft (8).
4. the sealing structure according to any one in claim 1-3, it is characterised in that described
Rotating part is rotating wheel (1), and the rotating wheel (1) is including fixed cover in the power transmission shaft (8)
Spindle sleeve portion.
5. sealing structure according to claim 4, it is characterised in that the bearing assembly is also wrapped
Include the sleeve pipe (2) for being sheathed on the power transmission shaft (8), the two ends of the sleeve pipe (2) press on described respectively
Central axle sleeve portion and the inner ring of the bearing (9).
6. sealing structure according to claim 5, it is characterised in that described sleeve pipe (2) is passed through
The centre bore of the bearing cap (4), and the outside framework oil seal (3) is arranged on described sleeve pipe (2)
Outer peripheral face and the bearing cap (4) between.
7. the sealing structure according to any one in claim 1-3, it is characterised in that described
Rotating part is to be formed with the closure (10) of through hole and fixed cover located at the power transmission shaft (8), described
Sealing ring (14) is provided with the inner peripheral surface of closure (10).
8. sealing structure according to claim 7, it is characterised in that the sealing structure is also wrapped
Spring base of the fixed cover located at the power transmission shaft (8) is included, the spring base includes being sheathed on the power transmission shaft
(8) cannula portion (7), wherein one end of the cannula portion (7) press on the interior of the bearing (9)
Circle, described sleeve pipe portion (7) are through the closure (10).
9. sealing structure according to claim 8, it is characterised in that the spring base includes
Spring base (12) and lower spring cup (13), the other end of described sleeve pipe portion (7) are connected to the lower bullet
Spring abutment (13), the upper spring seat (12) are fixedly connected on the power transmission shaft (8), the upper spring
Seat (12) and the lower spring cup (13) are connected by bolt spacings, and the bolt is located on described
Part between spring base (12) and the lower spring cup (13) is arranged with spring, and the spring
Two ends press on the upper spring seat (12) and the lower spring cup (13) respectively.
10. a kind of square plansifter, it is characterised in that the square plansifter is provided with according to claim 1-9
The sealing structure of the bearing assembly described in middle any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622167.6A CN106555884A (en) | 2015-09-25 | 2015-09-25 | The sealing structure and square plansifter of bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622167.6A CN106555884A (en) | 2015-09-25 | 2015-09-25 | The sealing structure and square plansifter of bearing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106555884A true CN106555884A (en) | 2017-04-05 |
Family
ID=58415991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510622167.6A Pending CN106555884A (en) | 2015-09-25 | 2015-09-25 | The sealing structure and square plansifter of bearing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106555884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561433A (en) * | 2018-06-01 | 2018-09-21 | 宁波美亚特精密传动部件有限公司 | Linear motion axis bearing assembly |
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| CN2898424Y (en) * | 2006-05-12 | 2007-05-09 | 朱申明 | External expanded fixing structure of bearing for vibrating sieve |
| CN201669214U (en) * | 2010-05-28 | 2010-12-15 | 开封市茂盛机械有限公司 | Lubricating oil anti-leakage structure for square plansifter |
| CN202199502U (en) * | 2011-09-02 | 2012-04-25 | 辽源市瑞意粮食机械制造有限公司 | Slewing device with component force spring mechanism |
| CN102430515A (en) * | 2011-12-06 | 2012-05-02 | 辽源市瑞意粮食机械制造有限公司 | High-efficient fine-grading powder separator |
| CN202238619U (en) * | 2011-08-05 | 2012-05-30 | 杭州山虎机械有限公司 | Circular vibrating screen |
| CN202238598U (en) * | 2011-10-18 | 2012-05-30 | 郭军 | Sealing structure and internal circulation lubrication structure for vibration exciter of vibrating screen |
| CN203067777U (en) * | 2012-11-28 | 2013-07-17 | 宁夏鑫睿通矿山机械设备有限公司 | Vibration exciter with novel sealing structure |
| CN203222695U (en) * | 2013-04-28 | 2013-10-02 | 东莞玖龙纸业有限公司 | Riding wheel with improved structure |
| CN205101560U (en) * | 2015-09-25 | 2016-03-23 | 中粮工程装备（张家口）有限公司 | Bearing assembly's seal structure and high side's plansifter |
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2015
- 2015-09-25 CN CN201510622167.6A patent/CN106555884A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2898424Y (en) * | 2006-05-12 | 2007-05-09 | 朱申明 | External expanded fixing structure of bearing for vibrating sieve |
| CN201669214U (en) * | 2010-05-28 | 2010-12-15 | 开封市茂盛机械有限公司 | Lubricating oil anti-leakage structure for square plansifter |
| CN202238619U (en) * | 2011-08-05 | 2012-05-30 | 杭州山虎机械有限公司 | Circular vibrating screen |
| CN202199502U (en) * | 2011-09-02 | 2012-04-25 | 辽源市瑞意粮食机械制造有限公司 | Slewing device with component force spring mechanism |
| CN202238598U (en) * | 2011-10-18 | 2012-05-30 | 郭军 | Sealing structure and internal circulation lubrication structure for vibration exciter of vibrating screen |
| CN102430515A (en) * | 2011-12-06 | 2012-05-02 | 辽源市瑞意粮食机械制造有限公司 | High-efficient fine-grading powder separator |
| CN203067777U (en) * | 2012-11-28 | 2013-07-17 | 宁夏鑫睿通矿山机械设备有限公司 | Vibration exciter with novel sealing structure |
| CN203222695U (en) * | 2013-04-28 | 2013-10-02 | 东莞玖龙纸业有限公司 | Riding wheel with improved structure |
| CN205101560U (en) * | 2015-09-25 | 2016-03-23 | 中粮工程装备（张家口）有限公司 | Bearing assembly's seal structure and high side's plansifter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561433A (en) * | 2018-06-01 | 2018-09-21 | 宁波美亚特精密传动部件有限公司 | Linear motion axis bearing assembly |
| CN108561433B (en) * | 2018-06-01 | 2020-04-14 | 宁波美亚特精密传动部件有限公司 | Linear motion bearing assembly |
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Application publication date: 20170405 |