CN203176158U - Magnetic fluid lubrication sliding bearing with annular groove - Google Patents
Magnetic fluid lubrication sliding bearing with annular groove Download PDFInfo
- Publication number
- CN203176158U CN203176158U CN 201320178221 CN201320178221U CN203176158U CN 203176158 U CN203176158 U CN 203176158U CN 201320178221 CN201320178221 CN 201320178221 CN 201320178221 U CN201320178221 U CN 201320178221U CN 203176158 U CN203176158 U CN 203176158U
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- CN
- China
- Prior art keywords
- sliding bearing
- magnetic fluid
- annular groove
- fluid lubrication
- oiling agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a magnetic fluid lubrication sliding bearing with an annular groove. The magnetic fluid lubrication sliding bearing comprises a sliding bearing, wherein a magnetic fluid hole is formed in the wall of the sliding bearing, at least one annular groove is formed in the outer circle of the sliding bearing, an annular magnet is arranged in the annular groove, an elastic check ring is arranged between the annular magnet and the sliding bearing in the axial direction, and at least one square groove is formed in an inner hole of the sliding bearing along the radial direction. The magnetic fluid lubrication sliding bearing has the advantages that the cooling of the sliding bearing is realized, the heat dissipation of a lubricant is accelerated, the heat conduction area of the lubricant is enlarged, the temperature of the lubricant is reduced, the using reliability of the sliding bearing is improved, and the service life of the lubricating bearing is prolonged.
Description
Technical field
The utility model relates to the sliding bearing technical field, relates in particular to a kind of magnetic fluid lubrication sliding bearing with circular groove.
Background technique
The viscosity of the magnetic fluid lubrication sliding bearing oiling agent of the band circular groove under the magnetic field of prior art is higher, because sliding bearing endoporus fitting surface is smooth surface, friction Temperature Rise is big when running up, the lubrication effect variation and the heat dispersion that cause sliding bearing are poor, because lubrication effect is poor, heat dispersion is poor, has influenced operational safety and the working life of sliding bearing.When serious even cause the high temperature lubricating of bearing to lose efficacy, cause equipment failure, bring immeasurable loss.
Summary of the invention
The utility model provides a kind of magnetic fluid lubrication sliding bearing with circular groove in order to solve the prior art above shortcomings; The realization sliding bearing cools off, and accelerates the heat dissipation rate of oiling agent, has enlarged the heat transfer area of oiling agent, reduces the temperature of oiling agent faster.Operational safety, and working life of sliding bearing have been improved.
The purpose of this utility model is to adopt following technical proposals to realize:
A kind of magnetic fluid lubrication sliding bearing with circular groove, comprise sliding bearing, the sliding bearing wall is provided with the magnetic current body opening, the cylindrical of described sliding bearing is provided with at least one annular groove, be provided with ring magnet in the annular groove, be axially arranged with circlip between ring magnet and the sliding bearing, the endoporus of described sliding bearing radially is provided with at least one annular square groove, and the axis of magnetic current body opening is along the radially setting of sliding bearing.
Working principle of the present utility model: in order to improve the heat dispersion of magnetic fluid lubrication sliding bearing of band circular groove, on bearing inner surface along radially, be that rotational axis direction is opened some annular square grooves.During use, at first inject water-based magnetic fluid by the magnetic current body opening, adopt water-based magnetic fluid as oiling agent, water base carrier fluid cools off sliding bearing; Secondly, the axle that cooperates with sliding bearing when rotating, the circulating of drive magnetic fluid oiling agent, accelerated the heat dissipation rate of oiling agent; In addition, the setting of circumferencial direction annular square groove has enlarged the heat transfer area of oiling agent, thereby has reduced the temperature of oiling agent faster in the endoporus.Under this comprehensive function aspect three, guarantee that the magnetic fluid oiling agent can not lose efficacy because temperature is too high under the condition that runs up.In addition, because annular square groove is simple in structure along the radial circumference setting, easy to process, the flow direction of oiling agent is parallel with the direction of relative movement of the axle that matches, and avoids the stress at seamed edge place to concentrate, and has reduced being in contact with one another and being out of shape of surface of friction pair microprotrusion.In the flowing of oiling agent, the oiling agent of groove inside is under the pressure difference effect that motion produces, can flow into lubrication friction pair in the frictional interface continuously, play the effect that reduces wearing and tearing, reduces to rub, thereby reduction friction factor, compare with common friction surface, advantage such as the surperficial thickness that has the circumferencial direction square groove is big, pressure is little, temperature is low has better fluid heat dispersion and greasy property.
The beneficial effects of the utility model:
On bearing along radially, be that rotational axis direction is opened some annular square grooves, simple in structure, easy to process, the magnetic current body opening injects water-based magnetic fluid during use, adopt water-based magnetic fluid as oiling agent, water base carrier fluid cools off sliding bearing, improves the heat dispersion of the magnetic fluid lubrication sliding bearing of band circular groove;
Axle when rotating, drive circulating of magnetic fluid oiling agent, accelerated the heat dissipation rate of oiling agent;
3. annular square groove has enlarged the heat transfer area of oiling agent, reduces the temperature of oiling agent faster, avoids the too high and problem that lost efficacy of sliding bearing Yin Wendu under the condition that runs up;
4. the flow direction of oiling agent is parallel with direction of relative movement, avoids the stress at seamed edge place to concentrate, and has reduced being in contact with one another and being out of shape of surface of friction pair microprotrusion;
5. in the flowing of oiling agent, the oiling agent of groove inside is under the pressure difference effect that motion produces, can flow into lubrication friction pair in the frictional interface continuously, play the effect that reduces wearing and tearing, reduces to rub, thereby reduction friction factor, compare with common friction surface, advantage such as the surperficial thickness that has the circumferencial direction square groove is big, pressure is little, temperature is low has better fluid heat dispersion and greasy property.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the D-D sectional view of Fig. 1;
Fig. 3 is that the utility model is provided with the endoporus of annular square groove structure and the endoporus film thickness distribution contrast schematic representation of smooth surface;
Fig. 4 is that the utility model is provided with the endoporus of annular square groove structure and the internal bore pressures distribution contrast schematic representation of smooth surface;
Fig. 5 is that the utility model is provided with the endoporus of annular square groove structure and the endoporus temperature distribution contrast schematic representation of smooth surface;
Wherein, 1, sliding bearing, 2, the magnetic current body opening, 3, annular groove, 4, ring magnet, 5, circlip, 6, annular square groove.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
In conjunction with Fig. 1, Fig. 2, a kind of magnetic fluid lubrication sliding bearing with circular groove, comprise sliding bearing 1, radially be provided with magnetic current body opening 2 along sliding bearing 1, the cylindrical of sliding bearing 1 is provided with at least one annular groove 3, is provided with ring magnet 4 in the annular groove 3, be axially arranged with circlip 5 between ring magnet 4 and the sliding bearing, the endoporus of described sliding bearing 1 radially is provided with at least one annular square groove 6.Annular magnetic adopts permanent magnet.The following describes the contrast of structure of the present utility model and prior art structural test situation.Its acceptance of the bid 1 is the parameter of the utility model oiling agent and axle and bearing.
The parameter of table 1 oiling agent and axle and bearing
On the reynolds equation basis of considering heat and non-Newtonian fluid, set up infinite line contact mathematical model, to elastohydrodynamic lubrication equation discretization and nondimensionalization, adopt multi-grid method that the water-based magnetic fluid lubrication sliding bearing has been carried out thermoelastic stream lubrication analysis then.Inquired into the circumferencial direction square groove to the thickness of lubricating film, the influence of pressure and temperature.Table 1 is some basic parameters of using, and Fig. 3, Fig. 4 and Fig. 5 are thickness, the pressure and temperature distribution maps of magnetic fluid lubricating film.
Compare as can be seen by respectively thickness, the pressure and temperature of magnetic fluid lubricating films different among Fig. 3, Fig. 4 and Fig. 5 being distributed, have the magnetic fluid lubrication sliding bearing thickness increase that the inner circumference direction has the band circular groove of annular square groove, pressure reduces, the elastohydrodynamic lubrication temperature reduces, especially at outlet area, the bullet stream temperature of band texture surface obviously reduces the main main cause of three aspects again.First aspect, as oiling agent, water base carrier fluid itself has certain refrigerating function with water-based magnetic fluid; Second aspect, the rotation of axle drives circulating of magnetic fluid oiling agent, has accelerated the heat dissipation rate of oiling agent; The third aspect, inserting of circumferencial direction square groove enlarged the heat transfer area of oiling agent, thereby reduces the temperature of oiling agent faster.
Though above-mentionedly by reference to the accompanying drawings the embodiment of model utility is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (1)
1. magnetic fluid lubrication sliding bearing with circular groove, comprise sliding bearing, the sliding bearing wall is provided with the magnetic current body opening, it is characterized in that, the cylindrical of described sliding bearing is provided with at least one annular groove, is provided with ring magnet in the annular groove, is being axially arranged with circlip between ring magnet and the sliding bearing, the endoporus of described sliding bearing radially is provided with at least one annular square groove, and the axis of magnetic current body opening is along the radially setting of sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178221 CN203176158U (en) | 2013-04-10 | 2013-04-10 | Magnetic fluid lubrication sliding bearing with annular groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178221 CN203176158U (en) | 2013-04-10 | 2013-04-10 | Magnetic fluid lubrication sliding bearing with annular groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176158U true CN203176158U (en) | 2013-09-04 |
Family
ID=49072860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320178221 Expired - Fee Related CN203176158U (en) | 2013-04-10 | 2013-04-10 | Magnetic fluid lubrication sliding bearing with annular groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195816A (en) * | 2013-04-10 | 2013-07-10 | 青岛理工大学 | Ferrofluid-lubricated sliding bearing with annular groove |
-
2013
- 2013-04-10 CN CN 201320178221 patent/CN203176158U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195816A (en) * | 2013-04-10 | 2013-07-10 | 青岛理工大学 | Ferrofluid-lubricated sliding bearing with annular groove |
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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: 20130904 Termination date: 20140410 |