CN2744645Y - Magnetic fluid sealing and oil-charging carrying roller - Google Patents
Magnetic fluid sealing and oil-charging carrying roller Download PDFInfo
- Publication number
- CN2744645Y CN2744645Y CN 200420109587 CN200420109587U CN2744645Y CN 2744645 Y CN2744645 Y CN 2744645Y CN 200420109587 CN200420109587 CN 200420109587 CN 200420109587 U CN200420109587 U CN 200420109587U CN 2744645 Y CN2744645 Y CN 2744645Y
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- China
- Prior art keywords
- magnetic
- magnetic fluid
- bearing
- axle sleeve
- oil
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- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a magnetic fluid sealing and oil-charging carrying roller which comprises a shaft sleeve arranged on a core shaft, wherein, the shaft sleeve is supported on a bearing, and a bearing seat is fixedly connected with an outer cylinder through a large clamping ring. The utility model is characterized in that magnetic fluid sealing components are arranged on both sides of the bearing and positioned between the bearing seat and the shaft sleeve. The inner side wall of the bearing seat is fixedly provided with a permanent magnetic ring of which both poles are provided with pole shoes, and fit clearance is arranged among the permanent magnetic ring, the inner hole of the pole shoes and the shaft sleeve, wherein, the clearance is filled with magnetic fluid which forms a magnetic circuit among the permanent magnetic ring, the shaft sleeve and the magnetic fluid. An O-shaped magnetic liquid sealing ring formed by the magnetic fluid is positioned between the pole shoes and the shaft sleeve, and a sealing cavity formed by the magnetic fluid sealing components on both sides of the bearing is used as an oil storage cavity. The utility model can prevent water and dust, protect bearing against oil immersion, and have the obvious effects of long service life, low noise, free maintenance, energy saving, etc.
Description
Technical field:
The utility model relates to the belt feeder rotating device, more specifically says so to be applied in oil-filled idler in the belt transporter.
Background technology:
In the commercial production transportation, be to improve transport capacity, the continuity that guarantees to produce, reduce production costs, usually adopt belt transportation.Carrying roller is the important component part of belt transporter, in the operation process of whole piece belt feeder, directly influences the maintenance cost and the operating cost of belt feeder the service life of carrying roller.Be the key that improves the belt feeder service hours, reduces integrated cost the service life of improving carrying roller, and the principal element in carrying roller life-span depends on the life-span of bearing.In normal bearing use, there are certain difference in the service life of bearing and theoretical life-span, the operating condition difference at place, and the length great disparity in service life of bearing is very big.How to improve the service life of Idler bearing, at first solve the running environment of bearing, guarantee that bearing has excellent sealing performance, making it enter raceway and to turn round under the oil lubrication situation at no moisture, no dust, non-corrosiveness material is to improve the most important condition of the service life of bearing near the theoretical life-span.But under the present technology status, the sealing property of bearing is unsatisfactory.
Summary of the invention:
The utility model is for solving above-mentioned existing in prior technology problem, a kind of oil-filled idler with sealed magnetic fluid is provided, by improving its hermetically-sealed construction, make Idler bearing have the running environment of waterproof and dustproof and oil lubrication, and then make the carrying roller urceolus have good performances such as fire-retardant, antistatic and withstanding corrosion.
The technical scheme that the utility model technical solution problem is adopted is:
The utility model is included in axle sleeve is set on the mandrel, sleeve supporting is on bearing, bearing seat connects firmly by big collar and urceolus, it is characterized in that both sides at described bearing, magnetic fluid seal is set respectively between bearing seat and axle sleeve, described magnetic fluid seal is to fixedly install permanent-magnetic clamp on the madial wall of bearing seat, there is pole shoe at the two poles of the earth of permanent-magnetic clamp, between the endoporus of permanent-magnetic clamp and pole shoe and the axle sleeve tolerance clearance is arranged, be filled with magnetic fluid in the gap, at described permanent-magnetic clamp, form closed magnetic path between axle sleeve and the magnetic fluid, in this closed magnetic path, " O " type magnetic liquid sealing circle that is formed by magnetic fluid is between pole shoe and axle sleeve, and the sealing chamber body that forms with described both sides magnetic fluid seal is a shoe cream room.
Magnetic fluid is a kind of magnetic conductive substance, through the inhibiter activation, is dispersed in the fluid medium to stable homogeneous, and under the effect in magnetic field, this magnetic is magnetized, and don't separates out from fluid.Based on these characteristics, magnetic fluid is bound under the effect in magnetic field in the gap of axle sleeve and permanent-magnetic clamp, pole shoe, forms " O " type circle that can bear pressure together, plays the good result of oil sealing, waterproof and dustproof.Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the magnet fluid sealing that adopts of the utility model is the oil-filled sealing of a kind of High Performance noncontact, and not only having solved labyrinth seal can not waterproof, shortcoming that can not be oil-filled, has also solved contact or the bigger defective of oil-filled sealing idler roller running resistance simultaneously.The utility model can prevent dust, waterproof, again can be oil-filled, and running resistance is less.
2, urceolus of the present utility model can adopt fire-retardant, anti-static composite material to make.In light weight, ageing-resistant, withstanding corrosion.
3, the utlity model has high resistance to abrasion, extremely low coefficient of friction, do not tear the scuffing belt.
4, the utility model noise is low, running is steady, effectively realizes the running of non-maintaining and long life and the energy-saving effect of hand roller, reduces the integrated cost of belt feeder operation.
5, the utility model is applied widely, not only can be used for dust, mine, building stones factory, power plant, cement mill, washery, coke-oven plant that gas is bigger, also can be used for the moving defeated place of all kinds of belts such as saltworks, alkali factory, fertilizer plant, harbour.
Accompanying drawing is the utility model structural representation.
Number in the figure: 1 urceolus, 2 bearing seats, 3 seal rings, 4 mandrels, 5 axle sleeves, 6 pole shoes, 7 permanent-magnetic clamps, 8 nests, 9 bearings, 10 collars, 11 big collars, 12 magnetic fluids.
The specific embodiment:
Referring to accompanying drawing, in the present embodiment, axle sleeve 5 is set on mandrel 4, axle sleeve 5 is bearing on the bearing 9, and bearing seat 2 connects firmly with urceolus 1 by big collar 11.
Shown in the figure, both sides at bearing 9, between bearing seat 2 and axle sleeve 5, magnetic fluid seal is set respectively, this magnetic fluid seal is to fixedly install permanent-magnetic clamp 7 on the madial wall of bearing seat 2, there is pole shoe 6 at the two poles of the earth of permanent-magnetic clamp 7, pole shoe 6 is used for magnetic line of force is led, between the endoporus of permanent-magnetic clamp 7 and pole shoe 6 and the axle sleeve 5 tolerance clearance is arranged, be filled with magnetic fluid 12 in the gap, at permanent-magnetic clamp 7, form closed magnetic path between axle sleeve 5 and the magnetic fluid 12, in this closed magnetic path, " O " type magnetic liquid sealing circle that is formed by magnetic fluid 12 is between pole shoe 6 and axle sleeve 5, and the sealing chamber body that forms with the both sides magnetic fluid seal is a shoe cream room.
In order to guarantee the accurate location of each member, between the magnetic fluid seal of bearing 9 and its both sides, be placed with nest 8, shoe cream room is formed between the raceway of nest 8 and bearing 9, and collar 10 is a locations.
In concrete the enforcement, urceolus 1 adopts fire-retardant, antistatic type composite material, and magnetic fluid 12 is a nanometer magnetofluid, also claims nanometer magnetic liquid or nano-magnetic fluid, and permanent-magnetic clamp 7 is strong magnetic nd-fe-b magnet.
In order further to improve sealing effectiveness, can adopt the compound sealing structure shown in the figure, promptly be provided with on the basis of magnetic fluid seal, in its outside the one-level dust-proof seal ring is set again, shown in the figure, concrete structure is the polyurethane dust-proof seal ring 3 that precision-fit is set between the end of axle sleeve 5 and bearing seat 2.
The bearing seat 2 of packing into together after magnetic fluid seal, nest 8, bearing 9, axle sleeve 5 assembled forms bearing holder components, with a mandrel 4 and two groups of bearing holder components the laying respectively at mandrel 4 two ends urceolus 1 of packing in the lump, promptly constitute complete nanometer magnetofluid sealing High Performance oil-filled idler.
Claims (3)
1, oil-filled idler with sealed magnetic fluid, be included in axle sleeve (5) is set on the mandrel (4), axle sleeve (5) is bearing on the bearing (9), bearing seat (2) connects firmly by big collar (11) and urceolus (1), it is characterized in that both sides in described bearing (9), be positioned between bearing seat (2) and the axle sleeve (5) magnetic fluid seal is set respectively, described magnetic fluid seal is to fixedly install permanent-magnetic clamp (7) on the madial wall of bearing seat (2), there is pole shoe (6) at the two poles of the earth of permanent-magnetic clamp (7), between the endoporus of permanent-magnetic clamp (7) and pole shoe (6) and the axle sleeve (5) tolerance clearance is arranged, be filled with magnetic fluid (12) in the gap, in described permanent-magnetic clamp (7), form closed magnetic path between axle sleeve (5) and the magnetic fluid (12), in this closed magnetic path, " O " type magnetic liquid sealing circle that is formed by magnetic fluid (12) is positioned between pole shoe (6) and the axle sleeve (5), and the sealing chamber body that forms with described both sides magnetic fluid seal is a shoe cream room.
2, oil-filled idler with sealed magnetic fluid according to claim 1 is characterized in that being provided with dust-proof seal ring (3) between the end of described axle sleeve (5) and bearing seat (2).
3, oil-filled idler with sealed magnetic fluid according to claim 1 is characterized in that described magnetic fluid (12) is a nanometer magnetofluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109587 CN2744645Y (en) | 2004-11-24 | 2004-11-24 | Magnetic fluid sealing and oil-charging carrying roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109587 CN2744645Y (en) | 2004-11-24 | 2004-11-24 | Magnetic fluid sealing and oil-charging carrying roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744645Y true CN2744645Y (en) | 2005-12-07 |
Family
ID=35579428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109587 Expired - Fee Related CN2744645Y (en) | 2004-11-24 | 2004-11-24 | Magnetic fluid sealing and oil-charging carrying roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744645Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360839C (en) * | 2006-08-01 | 2008-01-09 | 中国兵器工业第五二研究所 | Magnetic liquid sealing device |
| CN104370073A (en) * | 2014-11-25 | 2015-02-25 | 中国矿业大学 | Carrier roller sealed by magnetic liquid |
-
2004
- 2004-11-24 CN CN 200420109587 patent/CN2744645Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360839C (en) * | 2006-08-01 | 2008-01-09 | 中国兵器工业第五二研究所 | Magnetic liquid sealing device |
| CN104370073A (en) * | 2014-11-25 | 2015-02-25 | 中国矿业大学 | Carrier roller sealed by magnetic liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051207 Termination date: 20111124 |