CN204403151U - Lift machine is used light and thin type bearing - Google Patents
Lift machine is used light and thin type bearing Download PDFInfo
- Publication number
- CN204403151U CN204403151U CN201520017475.1U CN201520017475U CN204403151U CN 204403151 U CN204403151 U CN 204403151U CN 201520017475 U CN201520017475 U CN 201520017475U CN 204403151 U CN204403151 U CN 204403151U
- Authority
- CN
- China
- Prior art keywords
- seal
- lip
- seal ring
- bearing
- dust excluder
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 239000000428 dust Substances 0.000 claims abstract description 25
- 230000007704 transition Effects 0.000 claims description 3
- 239000004519 grease Substances 0.000 description 16
- 230000001050 lubricating effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates on a kind of lift machine uses light and thin type bearing, include bearing outer ring, bearing inner race, retainer and roller, seal ring is provided with between bearing outer ring and the axial side of bearing inner race, seal ring comprises the seal ring body being coated with skeleton, seal ring body inner-diameter end is provided with interior sealing lip, primary seal lip and dust excluder lips, primary seal lip and interior sealing lip are positioned at inside seal ring, dust excluder lips is positioned at outside seal ring, primary seal lip and dust excluder lips end radially extend, seal ring body internal diameter radial direction is extended with sealing lip waist, sealing lip waist is between primary seal lip and interior sealing lip, and dust excluder lips and primary seal lip are arranged back-to-back, bearing inner race outside diameter hoop over glaze offers the L shape seal groove of ring-type laterally, the radial end face of dust excluder lips and L shape seal groove is conflicted and is sealed and matched, the axial end of primary seal lip and L shape seal groove is conflicted and is sealed and matched.It is good that the utility model has sealed elastic, and sealing is reliable, the advantage of reliable operation.
Description
Technical field
The utility model relates to technical field of bearings, is specifically related to lift machine be used light and thin type bearing.
Background technique
Lift machine adopts the structural type of monolateral sealing with light and thin type bearing, use in pairs, usually with grease chamber between two light and thin type bearings, realize adding lubricating grease in bearing; Its main structure is: include bearing outer ring, bearing inner race, retainer and roller, roller is assemblied between bearing outer ring and bearing inner race through retainer, be provided with seal ring between bearing outer ring and the axial side of bearing inner race, seal ring external diameter end is installed in the dustproof groove of bearing outer ring; As shown in Figure 1, internal diameter of the seal ring end is provided with three sealing lips, and the root of three sealing lips is assembled, and the sealed elastic at sealing lip place is little, makes sealing reliability poor, high in temperature, and under vibrating large operating mode, seal ring easily lost efficacy, and causes Lou fat phenomenon; And friction torque is large, sealing lip easily weares and teares; Simultaneously large owing to being positioned at sealing lip axial length inside seal ring, cross the axial end of seal groove on bearing inner race, lubricating grease for Bearing inner stirs large, makes the lubricating grease flowing velocity at seal ring place fast, thus makes lubricating grease more easily produce leakage.
Summary of the invention
For the deficiency that prior art exists, it is good that the purpose of this utility model is to provide a kind of sealed elastic, and sealing is reliable, the lift machine of reliable operation is used light and thin type bearing, effectively reduces lubricating grease leakage.
For achieving the above object, the utility model provides following technological scheme: a kind of lift machine is used light and thin type bearing, include bearing outer ring, bearing inner race, retainer and roller, described roller is assemblied between bearing outer ring and bearing inner race through retainer, seal ring is provided with between bearing outer ring and the axial side of bearing inner race, seal ring includes the seal ring body being coated with skeleton, seal ring body radial outer end is fixedly inlaid in the dustproof groove of bearing outer ring, seal ring body inner-diameter end is provided with three sealing lips, three sealing lips are respectively interior sealing lip, primary seal lip and dust excluder lips, primary seal lip and interior sealing lip are positioned at inside seal ring, dust excluder lips is positioned at outside seal ring, primary seal lip and dust excluder lips end radially extend, it is characterized in that: described seal ring body internal diameter radial direction is extended with sealing lip waist, sealing lip waist is between primary seal lip and interior sealing lip, and dust excluder lips and primary seal lip are arranged back-to-back, described bearing inner race outside diameter hoop over glaze offers the L shape seal groove of ring-type laterally, the radial end face of described dust excluder lips and L shape seal groove is conflicted and is sealed and matched, the axial end of primary seal lip and L shape seal groove is conflicted and is sealed and matched.
By adopting technique scheme, sealing lip waist is increased between the interior sealing lip of seal ring and primary seal lip, dust excluder lips and primary seal lip are arranged back-to-back, increase sealed elastic and the plasticity at sealing lip place, and L shape seal groove on fitted bearing inner ring, bearing operationally, seal ring can form " revolution " moment, namely reduces friction, thus when ensureing the seal action of seal ring, decrease the wear extent of seal ring, add the life-span of seal ring; L shape seal groove is arranged simultaneously, is convenient to add grease toward Bearing inner.
The utility model is set to further: the axial end interference fit of described primary seal lip and L shape seal groove, the radial end face transition fit of dust excluder lips and L shape seal groove.
By adopting technique scheme, the friction neither increasing seal ring can improve sealing again.
The utility model is set to further: described interior sealing lip end axis to extension and with described L shape seal groove axial end gap-forming axial spacing.
By adopting technique scheme, interior sealing lip realizes the stop to lubricating grease, and the axial end of interior sealing lip end and L shape seal groove has axial spacing, interior sealing lip shortened design more in the past, axially too can not stretch into Bearing inner, when bearing operation, the grease that can reduce to pile up at bearing inner race place stirs, then slow down the flowing of grease, thus reduce Lou fat amount.
The utility model is set to further: described this body diameter of seal ring end is provided with elastic groove, and elastic groove is circular arc.
By adopting technique scheme, facilitate seal ring to load in the dustproof groove of outer ring, and elastic groove adopting circular arc, external diameter side pressure compression deformation, being more conducive to assembling, simultaneously not easy-rupturing.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is existing bearing sealed ring structural representation;
Fig. 2 is with light and thin type bearing structure schematic diagram on the utility model specific embodiment lift machine;
Fig. 3 is Fig. 2 part A partial enlarged view;
Fig. 4 is the utility model specific embodiment seal ring cross-sectional view.
Embodiment
See accompanying drawing 2 to accompanying drawing 4, a kind of lift machine disclosed in the utility model is used light and thin type bearing, include bearing outer ring 1, bearing inner race 2, retainer 3 and roller 4, described roller 4 is assemblied between bearing outer ring 1 and bearing inner race 3 through retainer 3, is provided with seal ring 5 between bearing outer ring 1 and the axial side of bearing inner race 3.Seal ring 5 includes the seal ring body 52 being coated with skeleton 51, seal ring body 52 radial outer end is fixedly inlaid in the dustproof groove 11 of bearing outer ring 1, seal ring body 52 inner-diameter end is provided with three sealing lips, three sealing lips are respectively interior sealing lip 53, primary seal lip 54 and dust excluder lips 55, primary seal lip 54 and interior sealing lip 53 are positioned at inside seal ring 5, dust excluder lips 55 is positioned at outside seal ring 5, and primary seal lip 54 and dust excluder lips 55 end radially extend.Described seal ring body 51 internal diameter radial direction is extended with sealing lip waist 56, and sealing lip waist 56 is between primary seal lip 54 and interior sealing lip 53, and dust excluder lips 55 and primary seal lip 54 are arranged back-to-back.Described bearing inner race 2 outside diameter hoop over glaze offers the L shape seal groove 21 of ring-type laterally, and described dust excluder lips 55 is conflicted with the radial end face 211 of L shape seal groove 21 and is sealed and matched, and primary seal lip 54 is conflicted with the axial end 212 of L shape seal groove 21 and is sealed and matched.Sealing lip waist is increased between sealing lip and primary seal lip in seal ring, dust excluder lips and primary seal lip are arranged back-to-back, increase sealed elastic and the plasticity at sealing lip place, and L shape seal groove on fitted bearing inner ring, operationally, seal ring can form " revolution " moment to bearing, namely friction is reduced, thus when ensureing the seal action of seal ring, decreasing the wear extent of seal ring, adding the life-span of seal ring; Seal groove is that L shape is arranged simultaneously, is convenient to add grease toward Bearing inner.
Wherein, axial end 212 interference fit of described primary seal lip 54 and L shape seal groove 21, radial end face 211 transition fit of dust excluder lips 54 and L shape seal groove 21.
In this specific embodiment, described interior sealing lip 53 end axis to extension and with described L shape seal groove 21 axial end 212 gap-forming axial spacing b.Interior sealing lip realizes the stop to lubricating grease, more traditional interior sealing lip 53 is crossed seal groove axial end and is compared, the axial end of interior sealing lip end and L shape seal groove has axial spacing b, interior sealing lip shortened design more in the past, axially too can not stretch into Bearing inner, when bearing operation, the grease that can reduce to pile up at bearing inner race place stirs, then slow down the flowing of grease, thus reduce Lou fat amount.Wherein, spacing b preferentially adopts 0.2 ~ 0.4mm to design, and in ensureing, sealing lip is to the barrier effect of lubricating grease, reduces the stirring to lubricating grease simultaneously.
Be assemblied on bearing outer ring for convenience of seal ring, described seal ring body 52 external diameter end is provided with elastic groove 57, and elastic groove 57 is circular arc.Facilitate seal ring to load in the dustproof groove of outer ring, and elastic groove adopts circular arc, external diameter side pressure compression deformation, be more conducive to assembling, simultaneously not easy-rupturing.
Claims (4)
1. a lift machine uses light and thin type bearing, include bearing outer ring, bearing inner race, retainer and roller, described roller is assemblied between bearing outer ring and bearing inner race through retainer, seal ring is provided with between bearing outer ring and the axial side of bearing inner race, seal ring includes the seal ring body being coated with skeleton, seal ring body radial outer end is fixedly inlaid in the dustproof groove of bearing outer ring, seal ring body inner-diameter end is provided with three sealing lips, three sealing lips are respectively interior sealing lip, primary seal lip and dust excluder lips, primary seal lip and interior sealing lip are positioned at inside seal ring, dust excluder lips is positioned at outside seal ring, primary seal lip and dust excluder lips end radially extend, it is characterized in that: described seal ring body internal diameter radial direction is extended with sealing lip waist, sealing lip waist is between primary seal lip and interior sealing lip, and dust excluder lips and primary seal lip are arranged back-to-back, described bearing inner race outside diameter hoop over glaze offers the L shape seal groove of ring-type laterally, the radial end face of described dust excluder lips and L shape seal groove is conflicted and is sealed and matched, the axial end of primary seal lip and L shape seal groove is conflicted and is sealed and matched.
2. according to claim 1 lift machine uses light and thin type bearing, it is characterized in that: the axial end interference fit of described primary seal lip and L shape seal groove, the radial end face transition fit of dust excluder lips and L shape seal groove.
3. lift machine according to claim 1 or 2 is used light and thin type bearing, it is characterized in that: described interior sealing lip end axis to extension and with described L shape seal groove axial end gap-forming axial spacing.
4. according to claim 1 lift machine uses light and thin type bearing, it is characterized in that: described this body diameter of seal ring end is provided with elastic groove, and elastic groove is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017475.1U CN204403151U (en) | 2015-01-09 | 2015-01-09 | Lift machine is used light and thin type bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017475.1U CN204403151U (en) | 2015-01-09 | 2015-01-09 | Lift machine is used light and thin type bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403151U true CN204403151U (en) | 2015-06-17 |
Family
ID=53427014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520017475.1U Expired - Fee Related CN204403151U (en) | 2015-01-09 | 2015-01-09 | Lift machine is used light and thin type bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403151U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223588A (en) * | 2018-02-08 | 2018-06-29 | 无锡诚石轴承有限公司 | A kind of bearing seal structure |
| CN109340252A (en) * | 2018-11-30 | 2019-02-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Gauge change train axle-box locating abnormal shape inner-ring bearing |
| CN109538637A (en) * | 2018-12-27 | 2019-03-29 | 无锡市利钧轴承有限公司 | Bearing sealed ring |
| CN113847348A (en) * | 2021-08-16 | 2021-12-28 | 人本股份有限公司 | Bearing sealing structure |
-
2015
- 2015-01-09 CN CN201520017475.1U patent/CN204403151U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223588A (en) * | 2018-02-08 | 2018-06-29 | 无锡诚石轴承有限公司 | A kind of bearing seal structure |
| CN109340252A (en) * | 2018-11-30 | 2019-02-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Gauge change train axle-box locating abnormal shape inner-ring bearing |
| CN109538637A (en) * | 2018-12-27 | 2019-03-29 | 无锡市利钧轴承有限公司 | Bearing sealed ring |
| CN113847348A (en) * | 2021-08-16 | 2021-12-28 | 人本股份有限公司 | Bearing sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 |