CN108910444B - A kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication - Google Patents
A kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication Download PDFInfo
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- CN108910444B CN108910444B CN201810430112.9A CN201810430112A CN108910444B CN 108910444 B CN108910444 B CN 108910444B CN 201810430112 A CN201810430112 A CN 201810430112A CN 108910444 B CN108910444 B CN 108910444B
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- Prior art keywords
- pole shoe
- magnetic fluid
- magnetic
- fluid sealing
- nano
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/02—Adaptations of individual rollers and supports therefor
- B65G39/09—Arrangements of bearing or sealing means
Abstract
The invention discloses a kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication, the both ends of roller carrier shaft are respectively equipped with bearing block, and axially inside direction sets gradually interior magnetic fluid sealing component, bearing, outer magnetic fluid sealing component, exterior seal ring, inner seal ring, end cap and circlip to bearing block from the inside to the outside；Third pole shoe, the second permanent magnet, the 4th pole shoe, the second pole shoe offer liquid injection hole in the axial direction, first permanent magnet respectively opens a liquid injection hole in a radial direction and an axial direction, radial liquid injection hole is connected to axial liquid injection hole, and nano-magnetic fluid is filled in the axial closing cavity that inside and outside magnetic fluid sealing component is formed.The present invention is the non-contacting seal of zero leakage, can bear higher rotation speed, sealed reliable solves the problems, such as that sealing effect is bad when common labyrinth seal low temperature or speed operation；Using magnetic liquid lubrication bearing, magnetic liquid is by magnetically confined in lubricant housings, No leakage, excellent lubricating properties；Using hydraulic seal and nano lubricating, carrying roller running resistance substantially reduces, and service life greatly prolongs；Setting liquid injection hole facilitates in-site installation and in use supplement magnetic liquid.
Description
Technical field
The present invention relates to a kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication, belong to belt conveyor skill
Art field.
Background technique
Belt conveyor is the ideal high efficiency continuous transport equipment of granular media grain material, is widely used in coal, electricity
The industries such as power, harbour, metallurgy, food.Carrying roller is component part important in belt conveyor, it occupies conveyer gross mass
20% and totle drilling cost 25%-30% or more.The performance quality of carrying roller directly affects the operational efficiency and conveying of belt conveyor
Cost.The working environment of carrying roller is generally relatively more severe, and the main problem occurred in use process is that rotation is not flexible, when serious very
It can not extremely operate, conveyer belt running resistance is caused to increase, transfer efficiency reduces, and transportation cost increases.Analysis shows carrying roller fails
Be mostly as it is poorly sealed cause pollutant enter bearing make its lubrication failure and caused by.
Currently, the common sealing means of carrying roller are generally contactless labyrinth seal, it is by leakage path
Multiple teeth or slot are added to increase the flow resistance during dielectric leakage, makes gradually to drop by the medium differential pressure of leakage path
It is low, when the pressure balance at leakage path both ends, it can be realized to obturage and not leak.The rotational resistance of contactless labyrinth seal compared with
It is small, sealing effect and revolving speed it is square directly proportional, i.e. revolving speed more high sealing effect is better, and sealing effect is worst when parking.This
Outside, the lubricating system of existing carrying roller is mostly grease lubrication, and lubrication is simple, does not need to be regularly maintained, but bearing friction is relatively large,
Carrying roller running resistance is larger, and heat dissipation effect is not very good.
Nano-magnetic fluid is a kind of mono domain magnetic that the diameter coated by monolayer surfactant is less than to 10nm
The stabilization solid-liquid two-phase colloidal solution that particle height disperse is formed in certain carrier fluid.Magnetic fluid sealing is that one kind zero is let out
The non-contacting seal of leakage injects nano-magnetic fluid and is made of high performance permanent magnet, the good pole shoe of magnetic property
Magnetic conductive loop gap in, will form several " O " hydraulic seal circles.In addition, nano-magnetic fluid or a kind of novel, excellent
High performance lubricant, neither leaked in greasing under the influence of a magnetic field, and have good tribological property.
For the disadvantage that the existing sealing means of carrying roller are unreliable, the service life is short, in conjunction with magnetic fluid sealing and lubrication technology
Advantage, and it is applied to carrier roller of belt conveyer, there is good actual effect and development prospect.Compare existing patent, example
Such as: patent CN104370073A discloses a kind of carrying roller of magnetic fluid sealing, but only considered the sealing on the outside of bearing, does not have
Bearing inside is sealed；Patent CN1778651A discloses a kind of oil-filled idler of magnet fluid sealing, but the idler structure
It is more outmoded, it is very different with present carrying roller；More importantly both carrying rollers only consider the sealing effect of magnetic liquid
Fruit all without being lubricated simultaneously to bearing using magnetic liquid, and is all not provided with liquid injection hole, so that in-site installation is with after
The maintenance fluid infusion of phase becomes extremely difficult.
Summary of the invention
Current supporting roller sealing and lubrication technology there are aiming at the problem that, the present invention provide a kind of nano-magnetic fluid sealing with
The carrier roller of belt conveyer of lubrication can solve the problems, such as that traditional labyrinth seal can be bad in low temperature or speed operation seal performance,
Bearing is lubricated using nano-magnetic fluid simultaneously, leakage pollution environment can not be generated under magnetically confined.Utilize nano-magnetic
Liquid excellent sealing and greasy property, can make that the running resistance of carrying roller substantially reduces, service life greatly prolongs.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of sealing of nano-magnetic fluid and lubrication
Carrier roller of belt conveyer, including carrying roller cylinder, bearing block, bearing, end cap, retaining ring and roller carrier shaft；
The both ends of roller carrier shaft are respectively equipped with bearing block, and axially inside direction sets gradually interior magnetism to bearing block from the inside to the outside
Liquid sealing member, bearing, outer magnetic fluid sealing component, exterior seal ring, inner seal ring, end cap and circlip；
Interior magnetic fluid sealing component includes that the first pole shoe, the first permanent magnet and the second pole shoe, three are sequentially sleeved in carrying roller
On axis, the first pole shoe is contacted with bearing block end face；Outer magnetic fluid sealing component includes third pole shoe, the second permanent magnet, the 4th
Pole shoe and magnetic conduction axle sleeve, magnetic conduction axle sleeve cover on roller carrier shaft, and third pole shoe, the second permanent magnet, the 4th pole shoe are sequentially sleeved in magnetic conduction
On axle sleeve；One side end face of bearing is contacted with the second pole shoe, and another side end face is contacted with third pole shoe, magnetic conductive axis set；
Exterior seal ring and inner seal ring cover on roller carrier shaft, and the two is not in contact with each other, and exterior seal ring one end and the 4th pole shoe connect
It connects, inner seal ring one end is connect with magnetic conduction axle sleeve, is successively arranged end cap, circlip on the outside of inner seal ring；
Third pole shoe, the second permanent magnet, the 4th pole shoe, the second pole shoe offer liquid injection hole in the axial direction, and first forever
Magnet respectively opens a liquid injection hole in a radial direction and an axial direction, and radial liquid injection hole is connected to axial liquid injection hole, passes through fluid injection
Nano-magnetic fluid is filled in the axial closing cavity that hole is formed to inside and outside magnetic fluid sealing component.
It further, further include the first gasket and the second gasket, the first gasket covers on roller carrier shaft, is arranged in the second pole shoe
Between bearing, the second gasket covers on magnetic conductive axis set, is arranged between third pole shoe and bearing.
Further, it is set respectively between first pole shoe, the second pole shoe, third pole shoe, the 4th pole shoe and bearing block
It is equipped with the first O V-shaped ring, the 2nd O V-shaped ring, the 3rd O V-shaped ring, the 4th O V-shaped ring, above-mentioned O V-shaped ring mistake
It is full of and is coupled in the reliability in bearing block, guaranteeing static seal.
Further, the material of the bearing block is non-magnetic material, it is ensured that the reasonability of magnetic loop makes between sealing
The magnetic field of gap maximizes.
Further, the roller carrier shaft, magnetic conduction axle sleeve material be magnetic conductive material, as forming one of magnetic loop
Point.
Further, the liquid injection hole opened up on the 4th pole shoe is equipped with rubber stopper.
Compared with prior art: the present invention is the non-contacting seal of zero leakage, can bear higher rotation speed, sealed reliable,
Solve the problems, such as that common labyrinth seal sealing effect in low temperature or speed operation is bad；The present invention is set respectively in bearing two sides
Magnetic fluid sealing part is set, the axial cavity formed using two sealing elements injects the good nano-magnetic fluid of greasy property
Bearing is lubricated, replaces original grease lubrication or oil lubrication；The present invention be provided with liquid injection hole, both facilitated carrying roller in-site installation and
Fluid injection avoids and transports loss caused by fluid injection in advance, can also supplement at any time the magnetic liquid of loss as needed in use process
Body；The present invention realizes hydraulic seal and nano lubricating simultaneously using nano-magnetic fluid, and the running resistance of carrying roller can be made substantially to subtract
Small, service life greatly prolongs；The present invention is applied widely, and the carrying roller for being sealed and being lubricated using nano-magnetic fluid both can be used
In common belt conveyor, and it can be used for the band that the dust such as mine, cement plant, flour mill are larger, work under bad environments place
Formula conveyer.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
In figure: 1, carrying roller cylinder, 2, bearing block, the 3, first pole shoe, the 4, the first O V-shaped ring, the 5, first permanent magnet, 6,
Diode boot, the 7, the 2nd O V-shaped ring, the 8, first gasket, 9, bearing, 10, nano-magnetic fluid, the 11, second gasket, 12, third
Pole shoe, the 13, the 3rd O V-shaped ring, the 14, second permanent magnet, the 15, the 4th O V-shaped ring, the 16, the 4th pole shoe, 17, rubber stopper,
18, exterior seal ring, 19, inner seal ring, 20, end cap, 21, magnetic conduction axle sleeve, 22, retaining ring, 23, roller carrier shaft.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention includes carrying roller cylinder 1, bearing block 2, bearing 9, end cap 20, retaining ring 22 and roller carrier shaft 23；
The both ends of roller carrier shaft 23 are respectively equipped with bearing block 2, and axially inside direction sets gradually interior magnetic liquid to bearing block 2 from the inside to the outside
Seal member, bearing 9, outer magnetic fluid sealing component, exterior seal ring 18, inner seal ring 19, end cap 20 and circlip 22；It is interior
Magnetic fluid sealing component includes that the first pole shoe 3, the first permanent magnet 5 and the second pole shoe 6, three are sequentially sleeved on roller carrier shaft 23,
First pole shoe 3 is contacted with 2 end face of bearing block；Outer magnetic fluid sealing component includes third pole shoe 12, the second permanent magnet the 14, the 4th
Pole shoe 16 and magnetic conduction axle sleeve 21,21 sets of magnetic conduction axle sleeve on roller carrier shaft 23, third pole shoe 12, the second permanent magnet 14, the 4th pole shoe
16 are sequentially sleeved on magnetic conduction axle sleeve 21；One side end face of bearing 9 is contacted with the second pole shoe 6, another side end face and third pole shoe 12,
Magnetic conduction axle sleeve 21 contacts；Exterior seal ring 18 with 19 sets of inner seal ring on roller carrier shaft, the two is not in contact with each other, exterior seal ring 18 with
Roller carrier shaft 23 rotates, and inner seal ring 19 is stationary, and 18 one end of exterior seal ring is connect with the 4th pole shoe 16,19 one end of inner seal ring
It is connect with magnetic conduction axle sleeve 21, end cap 20, circlip 22 is successively arranged on the outside of inner seal ring 19, form a heavy dust seal, axis
The inside and outside magnetic fluid sealing component inside seat 2, bearing 9, exterior seal ring 18, inner seal ring 19 and end cap 20 is held to be kept off by elasticity
Circle 22 carries out axial restraint.
Third pole shoe 12, the second permanent magnet 14, the 4th pole shoe 16, the second pole shoe 6 offer liquid injection hole in the axial direction,
First permanent magnet 5 respectively opens a liquid injection hole in a radial direction and an axial direction, and radial liquid injection hole is connected to axial liquid injection hole, leads to
Cross filling nano-magnetic fluid 10 in the axial closing cavity that liquid injection hole is formed to inside and outside magnetic fluid sealing component, a part
Nano-magnetic fluid 10 is gathered in the gap of pole shoe and roller carrier shaft 23 or magnetic conduction axle sleeve 21 under magnetic fields, internal magnetic liquid
Body seal member is made of the first permanent magnet 5, the first pole shoe 3, the second pole shoe 6 and roller carrier shaft 23, is returned by forming complete magnetic
Road makes the first pole shoe 3, the second pole shoe 6 form several " O " shape hydraulic seals with the nano-magnetic fluid 10 in 23 gap of roller carrier shaft
Ring；External magnetic liquid sealing member is made of the second permanent magnet 14, third pole shoe 12, the 4th pole shoe 16 and magnetic conduction axle sleeve 21,
Hydraulic seal is formed in the seal clearance of third pole shoe 12, the 4th pole shoe 16 and magnetic conduction axle sleeve 21；Another part nano-magnetic
Liquid 10 is then filled in inside and outside magnetic fluid sealing component and is formed by axial cavity, on the one hand lubricates bearing 9, reduces rotation
Turn resistance, on the other hand leakage of the supplement for the magnetic liquid of sealing.
When being installed, roller carrier shaft 23 is penetrated into bearing block 2 first, and bearing block 2 is installed on 1 both ends of carrying roller cylinder.
First pole shoe 3, the first permanent magnet 5, the second pole shoe 6 are combined into internal magnetic liquid sealing member, and " O " V-shaped ring set
Enter on the groove of pole shoe, then in assembled magnetic fluid sealing component indentation bearing block 2.Successively along axially mounted first
Gasket 8, bearing 9, the second gasket 11 and magnetic conduction axle sleeve 21 merge installation external magnetic liquid seal with same method group
Part.After group installs above-mentioned parts, nano-magnetic fluid 10 can be injected by the liquid injection hole on the 4th pole shoe 16, and be packed into rubber
Rubber plug 17.Exterior seal ring 18, inner seal ring 19 and end cap 20 are finally installed, and by 22 axially position of retaining ring, it in this way can group
The carrying roller of synthesizing nano magnetic hydraulic seal and lubrication.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, all skills according to the present invention
Art any trickle amendment, equivalent replacement and improvement substantially to the above embodiments, should be included in technical solution of the present invention
Protection scope within.
Claims (6)
1. a kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication, including carrying roller cylinder (1), bearing block (2), axis
Hold (9), end cap (20), retaining ring (22) and roller carrier shaft (23)；
It is characterized in that, the both ends of roller carrier shaft (23) are respectively equipped with bearing block (2), bearing block (2) axially inside direction by interior
To setting gradually interior magnetic fluid sealing component, bearing (9), outer magnetic fluid sealing component, exterior seal ring (18), interior sealing outside
Enclose (19), end cap (20) and circlip (22)；
Interior magnetic fluid sealing component includes the first pole shoe (3), the first permanent magnet (5) and the second pole shoe (6), and three is sequentially sleeved in
On roller carrier shaft (23), the first pole shoe (3) is contacted with bearing block (2) end face；Outer magnetic fluid sealing component includes third pole shoe
(12), the second permanent magnet (14), the 4th pole shoe (16) and magnetic conduction axle sleeve (21), magnetic conduction axle sleeve (21) cover on roller carrier shaft (23),
Third pole shoe (12), the second permanent magnet (14), the 4th pole shoe (16) are sequentially sleeved on magnetic conduction axle sleeve (21)；The side of bearing (9)
End face is contacted with the second pole shoe (6), and another side end face is contacted with third pole shoe (12), magnetic conduction axle sleeve (21)；
Exterior seal ring (18), inner seal ring (19) cover on roller carrier shaft (23), exterior seal ring (18) one end and the 4th pole shoe (16)
Connection, inner seal ring (19) one end are connect with magnetic conduction axle sleeve (21), and end cap (20), elasticity are successively arranged on the outside of inner seal ring (19)
Retaining ring (22)；
Third pole shoe (12), the second permanent magnet (14), the 4th pole shoe (16), the second pole shoe (6) offer note in the axial direction
Fluid apertures, the first permanent magnet (5) respectively open a liquid injection hole, radial liquid injection hole and axial liquid injection hole in a radial direction and an axial direction
It is connected to, fills nano-magnetic fluid in the axial closing cavity formed by liquid injection hole to inside and outside magnetic fluid sealing component
(10).
2. the carrier roller of belt conveyer of a kind of nano-magnetic fluid sealing and lubrication according to claim 1, feature exist
In, further include the first gasket (8) and the second gasket (11), the first gasket (8) covers on roller carrier shaft (23), be arranged in the second pole shoe
(6) between bearing (9), the second gasket (11) covers on magnetic conduction axle sleeve (21), setting third pole shoe (12) and bearing (9) it
Between.
3. the carrier roller of belt conveyer of a kind of nano-magnetic fluid sealing and lubrication according to claim 1, feature exist
In between first pole shoe (3), the second pole shoe (6), third pole shoe (12), the 4th pole shoe (16) and bearing block (2) respectively
It is provided with the first O V-shaped ring (4), the 2nd O V-shaped ring (7), the 3rd O V-shaped ring (13), the 4th O V-shaped ring (15).
4. the carrier roller of belt conveyer of a kind of nano-magnetic fluid sealing and lubrication according to claim 1, feature exist
In the material of the bearing block (2) is non-magnetic material.
5. the carrier roller of belt conveyer of a kind of nano-magnetic fluid sealing and lubrication according to claim 1, feature exist
In the material of, the roller carrier shaft (23), magnetic conduction axle sleeve (21) be magnetic conductive material.
6. the carrier roller of belt conveyer of a kind of nano-magnetic fluid sealing and lubrication according to claim 1, feature exist
In the liquid injection hole opened up on the 4th pole shoe (16) is equipped with rubber stopper (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810430112.9A CN108910444B (en) | 2018-05-08 | 2018-05-08 | A kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810430112.9A CN108910444B (en) | 2018-05-08 | 2018-05-08 | A kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108910444A CN108910444A (en) | 2018-11-30 |
| CN108910444B true CN108910444B (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810430112.9A Active CN108910444B (en) | 2018-05-08 | 2018-05-08 | A kind of carrier roller of belt conveyer of nano-magnetic fluid sealing and lubrication |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557720A (en) * | 1978-10-20 | 1980-04-28 | Matsushita Electric Ind Co Ltd | Roller bearing |
| CN1778651A (en) * | 2004-11-24 | 2006-05-31 | 王明利 | Oil-filled idler with sealed magnetic fluid |
| CN101737499A (en) * | 2010-01-27 | 2010-06-16 | 北京交通大学 | Magnetic liquid sealing device with self-cleaning function |
| CN102182830A (en) * | 2011-05-05 | 2011-09-14 | 北京交通大学 | Rotary sealing device for magnetic liquid |
| PL218286B1 (en) * | 2010-11-10 | 2014-10-31 | Akademia Górniczo Hutnicza Im Stanisława Staszica W Krakowie | Sealing system of a rolling bearing in the belt conveyor runner |
| CN104455462A (en) * | 2014-09-29 | 2015-03-25 | 北京交通大学 | Magnetic liquid sealing device with labyrinth structure formed in pole shoes |
-
2018
- 2018-05-08 CN CN201810430112.9A patent/CN108910444B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557720A (en) * | 1978-10-20 | 1980-04-28 | Matsushita Electric Ind Co Ltd | Roller bearing |
| CN1778651A (en) * | 2004-11-24 | 2006-05-31 | 王明利 | Oil-filled idler with sealed magnetic fluid |
| CN101737499A (en) * | 2010-01-27 | 2010-06-16 | 北京交通大学 | Magnetic liquid sealing device with self-cleaning function |
| PL218286B1 (en) * | 2010-11-10 | 2014-10-31 | Akademia Górniczo Hutnicza Im Stanisława Staszica W Krakowie | Sealing system of a rolling bearing in the belt conveyor runner |
| CN102182830A (en) * | 2011-05-05 | 2011-09-14 | 北京交通大学 | Rotary sealing device for magnetic liquid |
| CN104455462A (en) * | 2014-09-29 | 2015-03-25 | 北京交通大学 | Magnetic liquid sealing device with labyrinth structure formed in pole shoes |
Non-Patent Citations (1)
| Title |
|---|
| "新型磁性液体密封";李德才;《北京交通大学学报》;20140831;第38卷(第4期);1-6 * |
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| CN108910444A (en) | 2018-11-30 |
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