CN200999799Y - Lubricating and sealing device of impulse force ball bearing - Google Patents
Lubricating and sealing device of impulse force ball bearing Download PDFInfo
- Publication number
- CN200999799Y CN200999799Y CNU200720105311XU CN200720105311U CN200999799Y CN 200999799 Y CN200999799 Y CN 200999799Y CN U200720105311X U CNU200720105311X U CN U200720105311XU CN 200720105311 U CN200720105311 U CN 200720105311U CN 200999799 Y CN200999799 Y CN 200999799Y
- Authority
- CN
- China
- Prior art keywords
- ball bearing
- magnetic liquid
- thrust ball
- lubricated
- seal arrangement
- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
- F16C33/6644—Retaining the liquid in or near the bearing by a magnetic field acting on a magnetic liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/762—Sealings of ball or roller bearings by means of a fluid
- F16C33/763—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap
- F16C33/765—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap by a magnetic field
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model belongs to a lubricating and sealing device for a ball thrust bearing. The ball thrust bearing comprises an upper ring, a lower ring, a steel ball group and a retaining frame, the lubricating and sealing device is arranged between the upper ring and lower ring, and comprises two circular magnets and magnetic liquid, therein, the two circular magnets are respectively arranged on the outside and inside of the steel ball group, firmly connected with the lower part of the upper ring or the upper part of the lower ring, and the magnetic liquid is distributed on the side of the steel ball, and the gap between the circular magnet and the upper ring or the lower ring. The utility model has the advantages that the rotating sealing of the magnet and the magnetic liquid of the utility model is a non-contact sealing, that is, the movable part and the static part are not directly contacted. The sealing is comprised of a circular permanent magnet, a bearing lower ring and magnetic liquid. The magnetic liquid is filled into the gap between the circular permanent magnet and the bearing lower ring.
Description
Technical field
The utility model belongs to technical field of rolling bearings, refers in particular to a kind of lubricated and seal arrangement of thrust ball bearing.
Background technique
Existing rolling bearing generally is to be made of Shang Quan, Xia Quan, steel ball, retainer, seal arrangement, is that the Chinese patent of CN97235843.9 discloses a kind of roller bearing as the patent No., and its seal arrangement is a seal ring.
Because many products need to produce in the particular surroundings of clean and vacuum and finish, a large amount of few bearings of discharging particulate that use in these manufacturing mechanisms.Scattering and disappearing of lubricating grease, the discharging of fret wear particulate becomes the key technical indexes of these thrust ball bearings.In clean and vacuum environment, adopt thrust ball bearings such as expensive oil-free lubrication, packingless ceramic silicon nitride at present.
The model utility content
Technical problem to be solved in the utility model is that the abrasive dust particulate that provides a kind of function admirable, low price at the present situation of prior art, can stop running gear to produce leaks, and stops the lubricated and seal arrangement of the lost thrust ball bearing of oiling agent.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: the lubricated and seal arrangement of this a kind of thrust ball bearing, described thrust ball bearing comprises Shang Quan, Xia Quan, steel ball group and retainer, described lubricated and seal arrangement is arranged on Shang Quan and down between the circle, it comprises two ringshaped magnets and magnetic liquid, wherein two ringshaped magnets are separately positioned on the outside and the inboard of steel ball group, fixedly connected on the bottom or the following top of enclosing of last circle, magnetic liquid is distributed in the gap of steel ball sidepiece and ringshaped magnet and last circle or following circle.
Described magnetic liquid is the stable colloidal solution that the ferromagnetic particle with 5～10nm is prepared into to basal liquid by surfactant-dispersed.
Described ferromagnetic particle is Fe
3O
4, FeN or Ni.
Described basal liquid is water, oil or fat.
Described magnetic liquid is chosen as that evaporation is extremely low, viscosity is fit to and the good magnetic liquid of greasy property.
Described magnetic liquid is chosen as decanedioic acid Diisooctyl based magnetic liquid or synthetic oil-base magnetic poly-alpha olefin liquid.
Described magnetic liquid accounts for the 7-10% of thrust ball bearing inner space.
Compared with prior art, advantage of the present utility model is that the rotary seal of magnet of the present utility model and magnetic liquid combination is a kind of noncontact seal, and promptly moving part does not directly contact with quiet.Sealing is made up of circle and magnetic liquid under annular permanent magnet, the bearing.Inject magnetic liquid in the gap under annular permanent magnet and bearing between the circle.Enclose the magnetic circuit that constitutes down by annular permanent magnet and bearing magnetic liquid is inhaled firmly in the gap, form a magnetic liquid " O " type ring, the abrasive dust particulate that stops running gear to produce leaks, and stops magnetic liquid lost.
Description of drawings
Fig. 1 is the utility model embodiment's a part thrust ball bearing sectional view;
Fig. 2 is the utility model embodiment's a thrust ball bearing sectional view;
Fig. 3 is the utility model embodiment's a thrust ball bearing ringshaped magnet position view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, lubricated and the seal arrangement of this this a kind of thrust ball bearing, described thrust ball bearing comprises circle 3, encloses 6 down, steel ball group 1 and retainer 8, described lubricated and seal arrangement is arranged on circle 3 and encloses between 6 down, it comprises two ringshaped magnets and magnetic liquid 5, two ringshaped magnets are respectively outer ring-like magnet 7 and interior ringshaped magnet 4, and as shown in Figure 3, wherein outer ring-like magnet 7 and interior ringshaped magnet 4 are separately positioned on the outside and the inboard of steel ball group 1.In the present embodiment, outer ring-like magnet 7 and interior ringshaped magnet 4 are fixedly connected bottoms at last circle 3, and magnetic liquid 5 is distributed in steel ball sidepiece and outer ring-like magnet 7 and interior ringshaped magnet 4 and the gap of enclosing down, as illustrated in fig. 1 and 2.In the present embodiment, outer ring-like magnet 7 and interior ringshaped magnet 4 are to adopt with silicone adhesive to do the bottom that the fixedly connected mode of this bonding of static seal is attached at circle 3, can also adopt other general means of fixation to connect.Outer ring-like magnet 7 and interior ringshaped magnet 4 also can be on the following circle 6 that links.Described magnetic liquid 5 is the stable colloidal solution that the ferromagnetic particle with 5～10nm is prepared into to basal liquid by surfactant-dispersed.Described ferromagnetic particle can be Fe3O4, FeN or Ni etc.Described basal liquid is water, oil or fat etc.Described magnetic liquid is chosen as that evaporation is extremely low, viscosity is fit to and the good magnetic liquid of greasy property, as decanedioic acid Diisooctyl based magnetic liquid or synthetic oil-base magnetic poly-alpha olefin liquid.The 7-10% that described magnetic liquid 5 accounts for the thrust ball bearing inner space is optimal selection.
The utility model relates to a kind of magnetic liquid lubrication of thrust ball bearing and the technology of sealing.Though magnetic liquid can not other liquid of rotary seal, can rotary seal magnetic liquid itself; Thrust ball bearing is the part of a special selflubricating and sealing; Select to evaporate the lubricating grease of the magnetic liquid extremely low, that viscosity is fit to and greasy property is good as thrust ball bearing; Utilize the excellent properties of the zero leakage of magnetic liquid rotary seal and extremely low wear particle discharging, the rotary seal of making up with magnet and magnetic liquid seals as thrust ball bearing, produces the thrust ball bearing of magnetic liquid lubrication and sealing.Thereby the particulate emission that this thrust ball bearing is produced in operation process is few, satisfies the requirement of clean and vacuum environment.The thrust ball bearing of magnetic liquid lubrication and sealing is cheap, function admirable.
The utility model relates to the magnetic liquid lubrication of thrust ball bearing and the technology of sealing: the lubricating grease that particularly replaces thrust ball bearing with magnetic liquid; Rotary seal with magnet and magnetic liquid combination realizes the thrust ball bearing sealing.Reach and reduce scattering and disappearing and the discharging of wear particle of oiling agent effectively, make the thrust ball bearing of this magnetic liquid lubrication and sealing be applicable to the particular surroundings of clean and vacuum.
The rotary seal of magnet of the present utility model and magnetic liquid combination is a kind of noncontact seal, and promptly moving part does not directly contact with quiet.Sealing is made up of circle and magnetic liquid under annular permanent magnet, the bearing.Inject magnetic liquid in the gap under annular permanent magnet and bearing between the circle.Enclose the magnetic circuit that constitutes down by annular permanent magnet and bearing magnetic liquid is inhaled firmly in the gap, form a magnetic liquid " O " type ring, the abrasive dust particulate that stops running gear to produce leaks, and stops magnetic liquid lost.
Of the present utility model having particular application as: increase about the race diameter 3mm of a normal rated thrust ball bearing, reduce to be beneficial to 2 thickness are installed the toroidal magnet that is 3mm about its inner ring diameter 3mm, manufacture an off-gauge thrust ball bearing.Shang Quan, following circle and ball are all made by Martensitic Stain Less Steel SUS440C, retainer is made by Martensitic Stain Less Steel SUS303, behind organic solvent cleaning thrust ball bearing and airing, select for use the extremely low decanedioic acid Diisooctyl based magnetic liquid of saturation vapor pressure to inject thrust ball bearing inside (magnetic liquid accounts for the 7-10% of thrust ball bearing inner space); Magnet is made by Nd-Fe-B rare earth permanent magnetic material Nd2Fe14B surface plating Ni, and circle is made static seal with silicone adhesive on magnet and the rolling thrust ball bearing; Magnet and rolling thrust ball bearing enclose movingly down, and the gap is 0.05-0.1mm movingly, inject magnetic liquid in the gap and carry out rotary seal, and the magnetic line of force passes the ball closure, and magnetic liquid is adsorbed on the effect that lubricating grease is played on the ball surface.Be characterized in: do not change stock, structure and the processing technology thereof of thrust ball bearing, only implement the thrust ball bearing sealing, with the fluid lubrication replacement grease lubrication of magnetic liquid with the rotary seal of magnetic liquid.
The surface active agent of this programme can adopt oleic acid.
Claims (7)
1, a kind of lubricated and seal arrangement of thrust ball bearing, described thrust ball bearing comprises Shang Quan, Xia Quan, steel ball group and retainer, it is characterized in that, described lubricated and seal arrangement is arranged on Shang Quan and down between the circle, it comprises two ringshaped magnets and magnetic liquid, wherein two ringshaped magnets are separately positioned on the outside and the inboard of steel ball group, fixedly connected in the bottom of last circle or the down top of circle, the gap that magnetic liquid is distributed in steel ball sidepiece and ringshaped magnet and last circle or encloses down.
2, the lubricated and seal arrangement of thrust ball bearing according to claim 1 is characterized in that described magnetic liquid is the stable colloidal solution that the ferromagnetic particle with 5～10nm is prepared into to basal liquid by surfactant-dispersed.
3, the lubricated and seal arrangement of thrust ball bearing according to claim 2 is characterized in that described ferromagnetic particle is Fe3O4, FeN or Ni.
4, the lubricated and seal arrangement of thrust ball bearing according to claim 2 is characterized in that described basal liquid is water, oil or fat.
5, the lubricated and seal arrangement of thrust ball bearing according to claim 1 is characterized in that described magnetic liquid is chosen as that evaporation is extremely low, viscosity is fit to and the good magnetic liquid of greasy property.
6, according to the lubricated and seal arrangement of the described thrust ball bearing of arbitrary claim in the claim 1～5, it is characterized in that described magnetic liquid is chosen as decanedioic acid Diisooctyl based magnetic liquid or synthetic oil-base magnetic poly-alpha olefin liquid.
7, according to the lubricated and seal arrangement of the described thrust ball bearing of arbitrary claim in the claim 1～5, it is characterized in that described magnetic liquid accounts for the 7-10% of thrust ball bearing inner space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720105311XU CN200999799Y (en) | 2007-01-05 | 2007-01-05 | Lubricating and sealing device of impulse force ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720105311XU CN200999799Y (en) | 2007-01-05 | 2007-01-05 | Lubricating and sealing device of impulse force ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200999799Y true CN200999799Y (en) | 2008-01-02 |
Family
ID=39014206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720105311XU Expired - Fee Related CN200999799Y (en) | 2007-01-05 | 2007-01-05 | Lubricating and sealing device of impulse force ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200999799Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966829A (en) * | 2012-11-20 | 2013-03-13 | 浙江万里学院 | Method for lubricating textured and magnetized surface with magnetic liquid |
| CN103953650A (en) * | 2014-03-19 | 2014-07-30 | 浙江万里学院 | Magnetic liquid-sealed double-row rolling bearing and sealing method |
| CN110884296A (en) * | 2018-09-10 | 2020-03-17 | 斯凯孚公司 | Sealing device for hub unit |
| CN114251368A (en) * | 2021-11-25 | 2022-03-29 | 广西科技大学 | Embedded magnetic fluid sealing device for bearing |
-
2007
- 2007-01-05 CN CNU200720105311XU patent/CN200999799Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966829A (en) * | 2012-11-20 | 2013-03-13 | 浙江万里学院 | Method for lubricating textured and magnetized surface with magnetic liquid |
| CN102966829B (en) * | 2012-11-20 | 2015-02-25 | 浙江万里学院 | Method for lubricating textured and magnetized surface with magnetic liquid |
| CN103953650A (en) * | 2014-03-19 | 2014-07-30 | 浙江万里学院 | Magnetic liquid-sealed double-row rolling bearing and sealing method |
| CN110884296A (en) * | 2018-09-10 | 2020-03-17 | 斯凯孚公司 | Sealing device for hub unit |
| CN114251368A (en) * | 2021-11-25 | 2022-03-29 | 广西科技大学 | Embedded magnetic fluid sealing device for bearing |
| CN114251368B (en) * | 2021-11-25 | 2023-10-27 | 广西科技大学 | Embedded magnetic fluid sealing device for bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: WANG ZHENGLIANG ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Wang Zhengliang Number: 01 Page: The title page Volume: 24 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Wang Zhengliang Number: 01 Volume: 24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: WANG ZHENGLIANG ^ |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |