CN202900993U - Enhanced oil-free lubrication rolling bearing with dustproof sealing effect - Google Patents
Enhanced oil-free lubrication rolling bearing with dustproof sealing effect Download PDFInfo
- Publication number
- CN202900993U CN202900993U CN2012205281949U CN201220528194U CN202900993U CN 202900993 U CN202900993 U CN 202900993U CN 2012205281949 U CN2012205281949 U CN 2012205281949U CN 201220528194 U CN201220528194 U CN 201220528194U CN 202900993 U CN202900993 U CN 202900993U
- Authority
- CN
- China
- Prior art keywords
- dust
- bearing
- sealing
- ring
- rolling bearing
- 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.)
- Withdrawn - After Issue
Links
Images
Classifications
-
- 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
- F16C33/80—Labyrinth sealings
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/40—Application independent of particular apparatuses related to environment, i.e. operating conditions
- F16C2300/52—Application independent of particular apparatuses related to environment, i.e. operating conditions low temperature, e.g. cryogenic temperature
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/40—Application independent of particular apparatuses related to environment, i.e. operating conditions
- F16C2300/54—Application independent of particular apparatuses related to environment, i.e. operating conditions high-temperature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses an enhanced oil-free lubrication rolling bearing with dustproof sealing effect. Dust prevention and sealing have decisive impact on the operation reliability and the service life of a bearing. The oil-free lubrication rolling bearing frequently runs under severe conditions of high temperature, superhigh temperature, low temperature, ultralow temperature and the like, and is not suitable for being sealed by a rubber sealing ring; a single dustproof cover non-contact sealing manner is adopted at present; and premature failure of the bearing is caused by invasion of an external foreign mater and leakage of an internal solid lubricating material. The dustproof sealing device in the rolling bearing disclosed by the utility model is of a dual dustproof sealing structure composed of inner and outer metal dustproof elements at the same side of the bearing, or a single composite dustproof sealing element composed of attached high-temperature resistant rubber or adhered solid lubricating material at the back part of each metal dustproof element, so that the dustproof sealing effect and the service life of the bearing are materially improved and prolonged, so as to obviously improve the operation reliability and the service life of the oil-free lubrication bearing. The enhanced oil-free lubrication rolling bearing is an invention with engineering practical significance.
Description
Technical field
The present invention relates to technical field of rolling bearings, particularly dust sealing effect enhancement mode oil-free lubrication rolling bearing.
Background technique
Dustproof and sealing has the meaning of equal importance with the oil lubrication rolling bearing to the oil-free lubrication rolling bearing, and its operational reliability and life-span on bearing has conclusive impact.Just introduced the turbidity test coefficient in the rolling bearing life computational methods that ISO is up-to-date and the formula, the size of this coefficient is several times, tens times difference on the impact of bearing life result of calculation.
The oil lubrication rolling bearing, usually adopt skeleton rubber seal, contact seal even heavy-contact-type sealing etc. to improve the dust sealing effect, but the oil-free lubrication rolling bearing often operates under the harsh conditions such as high temperature superhigh temperature, low temperature ultralow temperature, and the skeleton rubber seal take rubber as main body has been difficult to be competent at.Therefore, existing oil-free lubrication rolling bearing, dust-proof sealing device adopts metal dust-proof cover usually, so simple dust sealing form, be difficult to resist external dust, fluid or semifluid medium are to the invasion and attack of bearing, simultaneously be difficult to also prevent that the pulverulent solids lubriation material is from the leakage of bearing cavity, occurred in the engineering reality much causing bearing excessive wear or stuck inefficacy case because foreign matter enters bearing cavity, this inefficacy often occurs prior to the bearing fatigue spalling failure, steady safe operation to main frame consists of greatly challenge, therefore, by change dust-proof sealing device or sealing pair structure the dust sealing effect of oil-free lubrication rolling bearing is enhanced and becomes very urgent.
Summary of the invention
The object of the present invention is to provide a kind of dust sealing effect enhancement mode oil-free lubrication rolling bearing, undesirable to solve the bearing dust sealing effect that existing oil-free lubrication rolling bearing adopts common dust cover to exist, the technical problem of early failue very easily occurs in bearing.
Dust sealing effect enhancement mode oil-free lubrication rolling bearing of the present invention comprises bearing outer ring, inner ring, rolling element and dust-proof sealing device, it is characterized in that: the described dust-proof sealing device double dust-proof sealing structure that inside and outside two metal dust guard in the same side of bearing form of serving as reasons, or stick the monomer composite dust-proof seal configuration that high-temperature resistant rubber or bonding solid lubricant form by metal dust guard back.In above-mentioned " inside and outside two the metal dust guard in the same side of bearing ", " inside and outside " means that two metal dust guard are arranged in the relative position vertically of bearing, take the nearly person of distance between bearing mid point as in, outside person far away is.Lower same.
Metal dust guard in the described double dust-proof sealing structure is dust cover and/or back-up ring, its combination comprises: interior dust cover and outer dust cover, inner shield ring and outer back-up ring, inner shield ring and outer dust cover, interior dust cover and outer back-up ring, when one of them metal dust guard and the outer ring is fixed and when forming seal clearance with inner ring rib, another metal dust guard is then fixed with inner ring and is formed seal clearance with outer ring flange, two metal dust guard with and its in relative rotation between the bearing ring, all form radially noncontact seal.
Metal dust guard in the described monomer composite dust-proof Sealing is to locate not with the dust cover of crimping on the sealing edge, and the high-temperature resistant rubber that its back sticks comprises silicone rubber and fluorine rubber, and bonding solid lubricant comprises carbon graphite and electrographite.
When described monomer composite dust-proof Sealing sticks high-temperature resistant rubber, described high-temperature resistant rubber is as the material of dust sealing lip, with the bearing ring flange radial interference fit, form radial contact seal or process pillow block at lasso rib and ring face connecting part, the axial interference fit of the shoulder of super heated rubber sealing lip and pillow block forms the axial contact sealing.
When described monomer composite dust-proof Sealing sticks solid lubricant, solid lubricant is as the dust sealing lip, be in radial transition or Spielpassung with bearing ring flange, form radially semi-contact sealing or noncontact seal or at lasso rib and ring face connecting part processing pillow block radially, shoulder axial transitions or the Spielpassung of solid lubricant sealing lip and pillow block form axial semi-contact sealing or axial noncontact seal.
Above-mentioned dust seal main body material all adopts stainless steel materials or other steel grade sheet material to carry out manganese-series phosphorized processing.
Above-mentioned dust sealing effect enhancement mode oil-free lubrication rolling bearing, when adopting the double dust-proof sealing structure of two metal dust guard compositions, because when double dust-proof sealing spare takes one of them and bearing outer ring to fix with bearing inner race formation seal clearance, another and bearing inner race are fixed with bearing outer ring and are formed seal clearance, therefore consist of " Z " font sealed circuit; When adopting metal dust guard back to stick the monomer composite dust-proof Sealing of high-temperature resistant rubber composition, high-temperature resistant rubber sealing lip (sealing along) can be made into single lip, lips or three lips, forms radially or the axial contact sealing with the cell wall of bearing inner race rib or seal groove; When adopting the monomer composite dust-proof Sealing of the bonding solid lubricant composition in metal dust guard back, because solid lubricant has self lubricity, gap between solid lubricant sealing lip and the inner ring rib can much smaller than the gap between existing oil-free lubrication rolling bearing dust cover and the inner ring rib, form the sealing of gap or semi-contact.Can find out, these dust sealing modes, compare " one " font clearance seal loop that existing Nonlubricated bearing adopts dust cover, difficulty and bearing internal solids lubriation material that foreign is invaded bearing inside leak out all significantly increases of the outer difficulty of bearing, thereby the dust sealing effect of bearing is been significantly enhanced.
Above-mentioned oil-free lubrication rolling bearing comprises that the rolling bearing, the working surface that adopt solid lubricant carry out rolling bearing and employing that anti-friction wear-resistant processes and contain solid lubricant from the rolling bearing of loss retainer, comprises carbon graphite or electrographite retainer bearing.
Above-mentioned dust sealing effect enhancement mode oil-free lubrication rolling bearing, the type of the design of its dust-proof sealing device and setting and bearing is irrelevant, as long as the axial space of bearing allows just can implement, therefore, it has contained the oil-free lubrication rolling bearing of all types and size.
Above-mentioned oil-lubricated bearing is the general designation of fluid bearing, comprises oil lubrication bearing and grease lubrication bearing.
Be to improve protective ability and the operational reliability of oil-free lubrication rolling bearing under special running environment, bearing outer ring, inner ring and rolling element carry out the surface treatments such as phosphatization, nitriding after can adopting the special material manufacturing such as pottery, carbon graphite or Bearing Steel manufacturing; Metal dust-proof cover, back-up ring, metal dust guard are made by stainless steel or other steel are made rear phosphatization processing.
Description of drawings
Fig. 1 adopts the sectional view of the oil-free lubrication rolling bearing of interior dust cover and outer dust cover double dust-proof sealing structure.
Fig. 2 adopts the sectional view of the oil-free lubrication rolling bearing of inner shield ring and outer back-up ring double dust-proof sealing structure.
Fig. 3 adopts the sectional view of the oil-free lubrication rolling bearing of inner shield ring and outer dust cover double dust-proof sealing structure.
Fig. 4 adopts the sectional view of the oil-free lubrication rolling bearing of interior dust cover and outer back-up ring double dust-proof sealing structure.
Fig. 5 adopts the sectional view of oil-free lubrication rolling bearing of the radial contact seal of monomer composite dust-proof Sealing (metal dust guard back sticks high-temperature plastic).
Fig. 6 adopts the sectional view of oil-free lubrication rolling bearing of the axial contact sealing of monomer composite dust-proof Sealing (metal dust guard back sticks high-temperature plastic).
Fig. 7 adopts the sectional view of the oil-free lubrication rolling bearing of the radially semi-contact of monomer composite dust-proof Sealing (metal dust guard back sticks solid lubricant) or noncontact seal.
Fig. 8 adopts the sectional view of the oil-free lubrication rolling bearing of the axial semi-contact of monomer composite dust-proof Sealing (metal dust guard back sticks solid lubricant) or noncontact seal.
Embodiment
Operational reliability and life-span dustproof and that seal bearing have conclusive impact.The oil-free lubrication rolling bearing often moves under the harsh conditions such as high temperature superhigh temperature, low temperature ultralow temperature, be not suitable for adopting rubber seal to seal, the existing monomer dust cover noncontact seal that all adopts, the leakage of the intrusion of foreign and internal solids lubriation material causes the bearing premature failure.Existing band dust cover oil-free lubrication rolling bearing, be fixed together by monomer dust cover and bearing outer ring, its crimping place and bearing inner race form sealing pair, because dust cover and bearing inner race are made by metallic material, so do not allow both contact to smear, therefore can only adopt the noncontact seal of certain interval amount, such foreign, especially fluid and semifluid shape foreign matter just are easy to enter bearing inside from the bearing outside, and the solid lubrication powder of bearing inside also can be relatively easily from the bearing internal leakage, thereby greatly reduces operational reliability and the service life of bearing.
Dust sealing effect enhancement mode oil-free lubrication rolling bearing of the present invention, dust-proof sealing device is served as reasons in the double dust-proof sealing structure of inside and outside two metal dust guard composition of the same side of bearing, form dual non-contact sealing with bearing ring, or stick the monomer composite dust-proof Sealing that high-temperature resistant rubber or bonding solid lubricant form by metal dust guard back, form semi-contact or contact seal with bearing ring, make effect and the dust sealing life-span of bearing dust sealing all obtain substantial improvements and raising, can effectively stop foreign to invade bearing excessive wear that bearing causes or stuck, thereby significantly improve operational reliability and the service life of Nonlubricated bearing.The present invention is upper outside except being useful in the oil-free lubrication rolling bearing, also can be applicable on the dust sealing of all fluid lubrications or quasi-hydrodynamic lubrication rolling bearing.Below in conjunction with accompanying drawing, describe the present invention in detail.
Embodiment one
Such as accompanying drawing 1, interior dust cover and outer dust cover double dust-proof sealing structural oilless lubricate rolling bearing, this bearing is deep groove ball bearing, comprise outer ring 11, inner ring 12, ball 13, retainer 14, interior dust cover 15 and outer dust cover 16, be processed with the dust cover mounting groove on the rib of inner ring 12, interior dust cover 15 is housed in the mounting groove, the sealing of interior dust cover 15 along and outer ring 11 between have the gap; 11 mounting groove is equipped with the outer dust cover 16 that is positioned at dust cover 15 outsides in the outer ring, has the gap between the outside sealing of dust cover 16 edge and the inner ring 12, interior metal dust-proof cover 15 with and it is in relative rotation between the outer ring 11, outside metal dust-proof cover 16 with and its in relative rotation between the inner ring 12, form radially non-contact sealing.On the inner ring rib on the processing of dust cover mounting groove and the outer ring processing mode of dust cover mounting groove similar, formed by shaped profile turning cutter car system; Dust cover 15 materials that are installed together with inner ring 12 are identical with the material of the dust cover 16 that is installed together with the outer ring; After each part of bearing is finished according to drawing making, outer ring 11, inner ring 12, ball 13, retainer 14 traps form open bearing, then dust cover 15 in the punching press, the outer dust cover 16 of punching press more just makes that dust cover lubricates rolling bearing with outer dust cover double dust-proof sealing structural oilless in the №;
Embodiment two
Such as accompanying drawing 2, inner shield ring and outer back-up ring double dust-proof sealing structural oilless lubricate rolling bearing, this bearing is deep groove ball bearing, comprise outer ring 21, inner ring 22, ball 23, retainer 24, inner shield ring 25 and outer back-up ring 26, inner shield ring 25 is housed on the outer ring 21, between the sealed end of inner shield ring 25 and inner ring 22, has the gap; The outer back-up ring 26 that is positioned at inner shield ring 25 outsides is housed at inner ring 22, has the gap between the outside sealing of back-up ring 26 edge and the outer ring 21, the sealing of inner shield ring 25 along with and it is in relative rotation between the inner ring 22, outside back-up ring 26 with and its in relative rotation between the outer ring 21, form radially non-contact sealing.The present invention is not with dust cover, a back-up ring respectively is installed on outer ring and the inner ring, the back-up ring (the present embodiment is inner shield ring 25) that is installed together with outer ring 21 interference fit forms the clearance seal pair with inner ring 22 ribs, and is secondary with outer ring 21 ribs formation clearance seal with the back-up ring (the present embodiment is outer back-up ring 26) that inner ring 22 interference fit are installed together; After each part of bearing is finished according to drawing making, outer ring 21, inner ring 22, ball 23, retainer 24 traps form open bearing, then press-fit inner shield ring 25, press-fit again outer back-up ring 26, just make the lubricated rolling bearing of inner shield ring and outer back-up ring double dust-proof sealing structural oilless;
Embodiment three
Such as accompanying drawing 3, inner shield ring and outer dust cover double dust-proof sealing structural oilless lubricate rolling bearing, this bearing is deep groove ball bearing, comprise outer ring 31, inner ring 32, ball 33, retainer 34, inner shield ring 35 and outer dust cover 36, inner shield ring 35 is housed on the inner ring 32, the sealing of inner shield ring 35 along and outer ring 31 between have the gap; 31 are equipped with the outer dust cover 36 that is positioned at inner shield ring 35 outsides in the outer ring, have the gap between the outside sealing of dust cover 36 edge and the inner ring 32; Inner shield ring 35 with and its in relative rotation between the outer ring 31, and outside dust cover 36 sealed end with and its in relative rotation between the inner ring 32, form radially non-contact sealing.After each part of bearing is finished according to drawing making, outer ring 31, inner ring 32, ball 33, retainer 34 traps form open bearing, then press-fit inner shield ring 35, the outer dust cover 36 of punching press is just made the lubricated rolling bearing of inner shield ring and outer dust cover double dust-proof sealing structural oilless again;
Embodiment four
Such as accompanying drawing 4, outer back-up ring and interior dust cover double dust-proof sealing structural oilless lubricate rolling bearing, this bearing is deep groove ball bearing, comprise outer ring 41, inner ring 42, ball 43, retainer 44, interior dust cover 45 and outer back-up ring 46, outer back-up ring 46 is housed on the inner ring 42, has the gap between the outside sealing of back-up ring 46 edge and the outer ring 41; 41 are equipped with the dust cover 45 that is positioned at outer back-up ring 46 inboards in the outer ring, the sealing of interior dust cover 45 along and inner ring 42 between have the gap; Outside back-up ring 46 with and its in relative rotation between the outer ring 41, and the sealing of interior dust cover 45 along with and its in relative rotation between the inner ring 42, form radially non-contact sealing.After each part of bearing is finished according to drawing making, outer ring 41, inner ring 42, ball 43, retainer 44 traps form open bearing, then dust cover 45 in the punching press press-fits outer back-up ring 46 again, just makes the lubricated rolling bearing of interior dust cover and outer back-up ring double dust-proof sealing structural oilless;
Embodiment five
Such as accompanying drawing 5, metal dust guard back sticks monomer composite dust-proof Sealing (radial contact seal) the oil-free lubrication rolling bearing of high-temperature plastic, this bearing is deep groove ball bearing, comprise outer ring 51, inner ring 52, ball 53, retainer 54 and monomer composite dust-proof Sealing 55, monomer composite dust-proof Sealing 55 is positioned on the dust cover mounting groove of outer ring 51, monomer composite dust-proof Sealing 55 comprises metal dust guard 551 and high-temperature plastic 552, stick high-temperature plastic 552 at metal dust guard 551 backs, the sealing of high-temperature plastic 552 is along contacting with inner ring 52.Be radial contact seal.Metal dust guard 551 backs stick the monomer composite dust-proof Sealing 55(radial contact seal of high-temperature plastic 552) main body be metal dust guard 551, by impact briquetting, then pass through mould, by certain pressure and temperature, high-temperature plastic 552 and metal dust guard 551 are bonded together, the monomer composite dust-proof Sealing 55 that formation (seals the edge) take metal dust guard 551 as skeleton, take high-temperature plastic 552 as sealing lip comprises single lip, lips and three bead structures.Under the free state, sealing lip lip diameter is less than the inner ring rib diameter.After each part of bearing is finished according to drawing making, outer ring 51, inner ring 52, ball 53, retainer 54 traps form open bearing, then punching press monomer composite dust-proof Sealing 55, just make monomer composite dust-proof Sealing (radial contact seal) the oil-free lubrication rolling bearing that metal dust guard back sticks high-temperature plastic, the super heated rubber lip of monomer composite dust-proof Sealing and bearing inner race rib are radial interference fit, form radial contact seal.
Embodiment six
Such as accompanying drawing 6, metal dust guard back sticks monomer composite dust-proof Sealing (axial contact sealing) the oil-free lubrication rolling bearing of high-temperature plastic, this bearing is deep groove ball bearing, comprise outer ring 61, inner ring 62, ball 63, retainer 64 and monomer composite dust-proof Sealing 65, monomer composite dust-proof Sealing 65 is positioned on the dust cover mounting groove of outer ring 61, monomer composite dust-proof Sealing 65 comprises metal dust guard 651 and high-temperature plastic 652, stick high-temperature plastic 652 at metal dust guard 651 backs, the sealing of high-temperature plastic 652 is along contacting with the pillow block shoulder of inner ring 62.Be the axial contact sealing.Metal dust guard 651 backs stick the monomer composite dust-proof Sealing 65(axial contact sealing of high-temperature plastic 652) main body be metal dust guard 651, by impact briquetting, then pass through mould, by certain pressure and temperature, high-temperature plastic 652 and metal dust guard 651 are bonded together, form the monomer composite dust-proof Sealing 65 take metal dust guard 651 as skeleton, take high-temperature plastic 652 as sealing lip.The pillow block of inner ring 62 is opened between end face and the rib, in the design, makes under the bearing assemble state, axially contact also interference between the rubber seal lip 652 of dust seal 65 and the shoulder of pillow block.After each part of bearing is finished according to drawing making, outer ring 61, inner ring 62, ball 63, retainer 64 traps form open bearing, then punching press monomer composite dust-proof Sealing 65, just make monomer composite dust-proof Sealing (axial contact sealing) the oil-free lubrication rolling bearing that metal dust guard back sticks high-temperature plastic, super heated rubber lip and the pillow block on the bearing inner race of monomer composite dust-proof Sealing are axial interference fit, form the axial contact sealing.
Embodiment seven
Such as accompanying drawing 7, metal dust guard back sticks monomer composite dust-proof Sealing (radially semi-contact or noncontact seal) the oil-free lubrication rolling bearing of solid lubricant, this bearing is deep groove ball bearing, comprise outer ring 71, inner ring 72, ball 73, retainer 74 and monomer composite dust-proof Sealing 75, monomer composite dust-proof Sealing 75 is positioned on the dust cover mounting groove of outer ring 71, monomer composite dust-proof Sealing 75 comprises metal dust guard 751 and solid lubricant 752, stick solid lubricant 752 at metal dust guard 751 backs, be in micro-gap or slight contact condition between the sealing edge of solid lubricant 752 and the inner ring 72.Be radially semi-contact or noncontact seal.The main body that metal dust guard 751 backs stick the monomer composite dust-proof Sealing 75 of solid lubricant 752 is metal dust guard 751, by impact briquetting, then by accessory, adopt high temperature resistant adhesive to make solid lubricant ring plate 752 and metal dust guard 751 concentric being bonded together, form the monomer composite dust-proof Sealing 75 take metal dust guard 751 as skeleton, take solid lubricant 752 as sealing lip; After each part of bearing is finished according to drawing making, outer ring 71, inner ring 72, ball 73, retainer 74 traps form open bearing, then punching press monomer composite dust-proof Sealing 75, just make monomer composite dust-proof Sealing (radially semi-contact or noncontact seal) the oil-free lubrication rolling bearing that metal dust guard back sticks solid lubricant; Because monomer composite dust-proof Sealing 75 its backs stick solid lubricant, therefore, it just can adopt the gap to transition fit with cooperating of bearing inner race 72, forms the semi-contact sealing.
Embodiment eight
Such as accompanying drawing 8, metal dust guard back sticks monomer composite dust-proof Sealing (axially semi-contact or noncontact seal) the oil-free lubrication rolling bearing of solid lubricant, this bearing is deep groove ball bearing, comprise outer ring 81, inner ring 82, ball 83, retainer 84 and monomer composite dust-proof Sealing 85, be processed with pillow block on the bearing inner race 82, monomer composite dust-proof Sealing 85 is positioned on the dust cover mounting groove of outer ring 81, monomer composite dust-proof Sealing 85 comprises metal dust guard 851 and solid lubricant 852, stick solid lubricant 852 at metal dust guard 851 backs, be in micro-gap or slight contact condition between the sealing edge of solid lubricant 852 and the pillow block shoulder of inner ring 82.Be axial semi-contact or noncontact seal.The main body that metal dust guard 851 backs stick the monomer composite dust-proof Sealing 85 of solid lubricant 852 is metal dust guard 851, by impact briquetting, then by accessory, adopt high temperature resistant adhesive to make solid lubricant ring plate 852 and metal dust guard 851 concentric being bonded together, form the monomer composite dust-proof Sealing 85 take metal dust guard 851 as skeleton, take solid lubricant 852 as sealing lip; After each part of bearing is finished according to drawing making, outer ring 81, inner ring 82, ball 83, retainer 84 traps form open bearing, then punching press monomer composite dust-proof Sealing 85 is just finished the assembling of a whole set of bearing, under the assembling condition, pillow block shoulder on solid lubricant ring plate 852 and the bearing inner race 82 is axially forming transition or Spielpassung, therefore form axial semi-contact or noncontact seal form, make thus monomer composite dust-proof Sealing (axially semi-contact or noncontact seal) the oil-free lubrication rolling bearing that metal dust guard back sticks solid lubricant.
Embodiment one is the double dust-proof sealing structure to embodiment four, and each dust cover is along the dust cover of place with crimping in sealing.The inside and outside metal dust guard of same set of bearing is installed in respectively on the different lassos, and form noncontact seal with another lasso, both comprised that interior metal dust guard was installed in (outer metal dust guard is installed on the outer ring) and outer ring (inner ring) formation noncontact seal on the inner ring, comprised also that interior metal dust guard was installed in (outer metal dust guard is installed on the inner ring) and inner ring (outer ring) formation noncontact seal on the outer ring.In the double seal, inner ring rib and outer ring flange all are sealing pairs, all need grinding maybe can reach other processing mode of grinding accuracy grade.
Embodiment five is monomer composite dust-proof sealing configuration to embodiment eight, metal dust guard in the described monomer composite dust-proof Sealing be in sealing along the place not with the dust cover of crimping, monomer composite dust-proof Sealing both can design, be fitted on the bearing outer ring, form sealing pair with bearing inner race, also can design as required, be fitted on the bearing inner race, form sealing pair with bearing outer ring.
In order to be compared with the prior art conveniently, above-described embodiment all adopts single-groove grooved ball bearing, and in fact, the know-why that dust sealing effect enhancement mode rolling bearing of the present invention adopts and scheme are fit to and all types of rolling bearings, as long as the bearing space size allows, just can implement.
Above disclosed only be several specific embodiments of the application, but the application is not limited thereto, the changes that any person skilled in the art can think of all should drop in the application's the protection domain.
Claims (5)
1. dust sealing effect enhancement mode oil-free lubrication rolling bearing, comprise bearing outer ring, inner ring, rolling element and dust-proof sealing device, it is characterized in that: the described dust-proof sealing device double dust-proof sealing structure that inside and outside two metal dust guard in the same side of bearing form of serving as reasons, or stick the monomer composite dust-proof seal configuration that high-temperature resistant rubber or bonding solid lubricant form by metal dust guard back.
2. oil-free lubrication rolling bearing according to claim 1, it is characterized in that: the metal dust guard in the described double dust-proof sealing structure is dust cover and/or back-up ring, its combination comprises: interior dust cover and outer dust cover, inner shield ring and outer back-up ring, inner shield ring and outer dust cover, interior dust cover and outer back-up ring, when one of them metal dust guard and the outer ring is fixed and when forming seal clearance with inner ring rib, another metal dust guard is then fixed with inner ring and is formed seal clearance with outer ring flange, two metal dust guard with and its in relative rotation between the bearing ring, all form radially noncontact seal.
3. oil-free lubrication rolling bearing according to claim 1, it is characterized in that: the metal dust guard in the described monomer composite dust-proof Sealing be in sealing along the place not with the dust cover of crimping, the high-temperature resistant rubber that its back sticks comprises silicone rubber and fluorine rubber, and bonding solid lubricant comprises carbon graphite and electrographite.
4. according to claim 1 or 3 described oil-free lubrication rolling bearings, it is characterized in that: when described monomer composite dust-proof Sealing sticks high-temperature resistant rubber, described high-temperature resistant rubber is as the material of dust sealing lip, with the bearing ring flange radial interference fit, form radial contact seal or process pillow block at lasso rib and ring face connecting part, the axial interference fit of the shoulder of super heated rubber sealing lip and pillow block forms the axial contact sealing.
5. according to claim 1 or 3 described oil-free lubrication rolling bearings, it is characterized in that: when described monomer composite dust-proof Sealing sticks solid lubricant, solid lubricant is as the dust sealing lip, be in radial transition or Spielpassung with bearing ring flange, form radially semi-contact sealing or noncontact seal or at lasso rib and ring face connecting part processing pillow block radially, shoulder axial transitions or the Spielpassung of solid lubricant sealing lip and pillow block form axial semi-contact sealing or axial noncontact seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205281949U CN202900993U (en) | 2012-10-15 | 2012-10-15 | Enhanced oil-free lubrication rolling bearing with dustproof sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205281949U CN202900993U (en) | 2012-10-15 | 2012-10-15 | Enhanced oil-free lubrication rolling bearing with dustproof sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900993U true CN202900993U (en) | 2013-04-24 |
Family
ID=48121667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205281949U Withdrawn - After Issue CN202900993U (en) | 2012-10-15 | 2012-10-15 | Enhanced oil-free lubrication rolling bearing with dustproof sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900755A (en) * | 2012-10-15 | 2013-01-30 | 上海斐赛轴承科技有限公司 | Dust preventing and sealing effect enhancing oil-free lubrication rolling bearing and manufacturing method for rolling shaft |
| IT202200003110A1 (en) * | 2022-02-21 | 2023-08-21 | Skf Ab | BEARING UNIT |
-
2012
- 2012-10-15 CN CN2012205281949U patent/CN202900993U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900755A (en) * | 2012-10-15 | 2013-01-30 | 上海斐赛轴承科技有限公司 | Dust preventing and sealing effect enhancing oil-free lubrication rolling bearing and manufacturing method for rolling shaft |
| IT202200003110A1 (en) * | 2022-02-21 | 2023-08-21 | Skf Ab | BEARING UNIT |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102900755A (en) | Dust preventing and sealing effect enhancing oil-free lubrication rolling bearing and manufacturing method for rolling shaft | |
| CN201428739Y (en) | Sealing self-aligning roller bearing | |
| CN104455000B (en) | A kind of graphite dry powder lubrication bearing and its processing technology | |
| CN202215736U (en) | Sealing structure for traveling gearbox of railway vehicle | |
| CN203670491U (en) | Non-contact bearing | |
| CN204628265U (en) | A kind of sealed type roller bearing | |
| CN202900993U (en) | Enhanced oil-free lubrication rolling bearing with dustproof sealing effect | |
| CN102135133A (en) | Sealed single-row cylindrical roller bearing | |
| CN204716753U (en) | With the sealing cylinder roller bearing of mounting flange | |
| CN203948446U (en) | The hermetically sealed single row full-filling roller bearing of a kind of king post system | |
| CN203926392U (en) | Noncontact seal type double-row full-complement cylinder roller bearing | |
| CN201347951Y (en) | Bearing with dustproof retainer rings on both sides of full rollers and cylindrical rollers | |
| CN206410150U (en) | Submerged slag conveyor external bearings Mechanical Sealed Type inner guide pulley device | |
| CN103899654B (en) | U-shaped combined bearing pedestal sealing device for waterproof carrier roller | |
| CN203948452U (en) | The two raceway roller bearings of axle formula sealed four-row | |
| CN203627545U (en) | External spherical surface ball bearing with vertical type seat | |
| CN203248525U (en) | Rolling bearing | |
| CN102777500A (en) | Hub bearing unit with four-lip seal structure | |
| CN106594770B (en) | The sealed inner guide pulley system of submerged slag conveyor bearing built-in machines | |
| CN206419966U (en) | The sealed inner guide pulley device of submerged slag conveyor bearing built-in machines | |
| CN204878359U (en) | Three rows of roller turntable bearings of double sealing | |
| CN105465186A (en) | Dust-prevention sealing component and bearing for preventing fluid from leaking through outer-circle sealing groove opening | |
| CN203809519U (en) | U-shaped combination bearing sealing device of waterproof supporting roller | |
| CN212202848U (en) | Novel sealing device for slewing bearing | |
| CN202493608U (en) | Automotive universal joint bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130424 Effective date of abandoning: 20161221 |
|
| AV01 | Patent right actively abandoned |