CN204239483U - A kind of sealing configuration of farm machinery bearing and dust cover thereof - Google Patents
A kind of sealing configuration of farm machinery bearing and dust cover thereof Download PDFInfo
- Publication number
- CN204239483U CN204239483U CN201420674904.8U CN201420674904U CN204239483U CN 204239483 U CN204239483 U CN 204239483U CN 201420674904 U CN201420674904 U CN 201420674904U CN 204239483 U CN204239483 U CN 204239483U
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- Prior art keywords
- flexible sealing
- sealed
- lip
- sealing lip
- bearing
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 90
- 239000000428 dust Substances 0.000 title claims abstract description 41
- 238000009434 installation Methods 0.000 claims description 10
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000004323 axial length Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000008520 organization Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a kind of sealing configuration of farm machinery bearing, comprise in bearing, outer ring and dust cover, the rubbery sealed body being at least with two flexible sealing lips is compounded with inside the rigid backbone of dust cover, the contact sealed end of flexible sealing lip radially extends to the inclination away from rigidity dirt lip in oblique shaft, each flexible sealing lip radially distributes, the outer circle wall of bearing inner race is provided with sealed step groove, rigid seal lip and sealed step groove Spielpassung, the axial end of at least one flexible sealing lip and sealed step groove is conflicted and is sealed and matched, and provide the dust cover of farm machinery bearing seal structure.The utility model solves conventional seals structure, and structure is not compact, and the problem of sealing effect difference, has compact structure, good seal performance and advantage easy to assembly.
Description
Technical field
The utility model relates to field of bearings, specifically relates to the bearing that farm machinery uses, the Sealing more precisely in the sealing configuration of farm machinery bearing and sealing structure.
Background technique
The Environmental Conditions condition of farm machinery is harsher; often can be attended by a large amount of dust, weeds and rubble or mud existence; therefore; require very high to the sealability of agricultural machinery bearing; the Sealing of agricultural machinery bearing should this can effectively prevent the outflow of internal lubrication fat from affecting the life-span of bearing, prevents outside mud again, the invasion of gravel particle causes damage to bearing.Meanwhile, under extremely severe operating mode, as seed-furrow opener bearing, easily there is obscission under the serum cap formula of plain bearing is sealed in the effect of external force, need special Sealing to protect bearing in mowing machine bearing.
The sealing configuration of existing farm machinery upper bearing (metal), as " many lips composite dust cover and bearing seal structure " (Authorization Notice No. is: CN 201751635 U) that China Patent No. is ZL201020239950.7, its main structure is: bearing inner race, bearing outer ring and be positioned at bearing, dust cover between outer ring, the its radially outer end of dust cover to be inlaid on bearing outer ring in dustproof groove, rubbery sealed body is compounded with inside the rigid backbone of dust cover, seal has at least two radial seal lips, the rigid backbone of dust cover comprises the installation folding being positioned at radial outer end, be arranged in the iron covering dust excluder lips (document is axial end 57) of radial inner end, and be arranged in the joint (document is composite surface 56) in neutral position, rubbery sealed body is compounded on joint, radial seal lip on iron covering dust excluder lips and rubbery sealed body is radial setting, and in axial arranged, the face that bearing inner race coordinates with radial seal lip on rubbery sealed body is flat face.There is following defect in many lips composite dust cover of said structure and bearing seal structure: can better be compounded on dust cover for making rubbery sealed body, meet the design of radial seal lip simultaneously, the joint of dust cover and installation folding, radial seal lip all adopts certain knuckle to design, the axial length of joint is that the axial length of rubbery sealed body is roughly the same, cause dust cover axial length elongated like this, not only can make troubles to assembling, and Bearing inner project organization can be affected (need bearing width additionally to strengthen or its inner steel ball reduces, the bearing capacity reducing bearing is cost, to make up the increase of dust cover axial length), and the radial seal lip on iron covering dust excluder lips and rubbery sealed body is radial setting, and in axial arranged, the bearing inner race outer peripheral surface that on rubbery sealed body, radial seal lip coordinates is under flat face matching design, also exist radial seal lip on rubbery sealed body contact with bearing inner race seal unreliable, flexible in operation is poor, makes troubles to the assembling of dust cover simultaneously.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of reasonable in design, compact structure, the sealing configuration of good seal performance and farm machinery bearing easy to assembly.
For achieving the above object, the utility model provides following technological scheme: a kind of sealing configuration of farm machinery bearing, include bearing inner race, bearing outer ring and be positioned at bearing, dust cover between outer ring, described dust cover includes rigid backbone, rubbery sealed body is compounded with inside rigid backbone, rubbery sealed body is provided with at least two flexible sealing lips, rigid backbone includes the installation folding being positioned at radial outer end, be positioned at the rigidity dirt lip of radial inner end, and the joint of connection flanging and rigidity dirt lip, described rubbery sealed body is compounded on joint, the installation folding of dust cover is arranged on bearing outer ring, on rubbery sealed body, flexible sealing lip and bearing inner race are conflicted and are sealed and matched, it is characterized in that: the contact sealed end of described flexible sealing lip radially extends to the inclination away from rigidity dirt lip in oblique shaft, each flexible sealing lip radially distributes, the outer circle wall of described bearing inner race is provided with sealed step groove, rigid seal lip and sealed step groove Spielpassung, the axial end of at least one flexible sealing lip and sealed step groove is conflicted and is sealed and matched.
By adopting technique scheme, the profile design of flexible sealing lip, reduce the axial length of rubbery sealed body, dustproof cover structure is more compact, bearing inner race adopts sealed step groove coordinate with dust cover, be sealed and matched reliable, and utilize the own feature of sealed step groove on bearing inner race, form sealing, good seal performance, compact structure after assembling, assembles more laborsaving convenience simultaneously.
The utility model is set to further: described bearing inner race outer circle wall is provided with the second sealed step be positioned at inside sealed step groove, have at least a flexible sealing lip to be placed in the second sealed step, and conflict with the radial end face of the second sealed step and be sealed and matched.
By adopting technique scheme, double step designs, and sealability is better.
The utility model is set to further: described flexible sealing lip is two, be respectively inner side flexible sealing lip and outside flexible sealing lip, outboard seal lip portion is positioned at sealed step groove, inner side flexible sealing lip is positioned at the second sealed step, and outside flexible sealing lip and rigidity dirt lip, between inner side flexible sealing lip and outside flexible sealing lip, angle is acute angle design.
By adopting technique scheme, flexible sealing lip number is reasonable in design, namely ensure that the reliability be sealed and matched, and in turn ensure that the intensity of flexible sealing lip, and sealed elastic power.
The utility model is set to further: the axial end of described sealed step groove is and the radial end face of sealed step groove slope in obtuse angle.
By adopting technique scheme, improve the flexible sealing lip contacted with the axial end of sealed step groove, be sealed and matched reliability, improves sealability.
The utility model is set to further: the joint of described rigid backbone and rigidity dust excluder lips are the straight tabular of smooth connection.
By adopting technique scheme, rigid-skeleton is simple, easy to process.
A kind of dust cover, include rigid backbone, rubbery sealed body is compounded with inside rigid backbone, rubbery sealed body is provided with at least two flexible sealing lips, rigid backbone includes the installation folding being positioned at radial outer end, be positioned at the rigidity dirt lip of radial inner end, and the joint of connection flanging and rigidity dirt lip, described rubbery sealed body is compounded on joint, it is characterized in that: the contact sealed end of described flexible sealing lip radially extends to the inclination away from rigidity dirt lip in oblique shaft, and each flexible sealing lip radially distributes.
By adopting technique scheme, the profile design of flexible sealing lip, reduce the axial length of rubbery sealed body, dustproof cover structure is more compact, and axis and radial seal resiliently deformable are reliably, good sealing effect.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the sealing configuration structural representation of the utility model specific embodiment farm machinery bearing;
Fig. 2 is the utility model specific embodiment dustproof cover structure schematic diagram.
Embodiment
See accompanying drawing 1 and accompanying drawing 2, a kind of sealing configuration of farm machinery bearing disclosed in the utility model, includes bearing inner race 1, bearing outer ring 2 and the dust cover 3 between the inside and outside circle 1,2 of bearing; Described dust cover 3 includes rigid backbone 31, be compounded with inside rigid backbone 31 rubbery sealed body 32(need herein it is emphasized that: for rigid backbone 31 is towards the side of Bearing inner inside rigid backbone 31, corresponding opposite side is outside), rubbery sealed body 32 is provided with at least two flexible sealing lips 321,322; Rigid backbone 31 includes the installation folding 311 being positioned at radial outer end, is positioned at the rigidity dirt lip 312 of radial inner end, and the joint 313 of connection flanging 311 and rigidity dirt lip 312; Described rubbery sealed body 32 is compounded on joint 313, and the installation folding 311 of dust cover 3 is arranged on bearing outer ring 2 in mounting groove 21, and on rubbery sealed body 32, flexible sealing lip 321,322 and bearing inner race 1 are conflicted and be sealed and matched.
The contact sealed end of described flexible sealing lip 321,322 radially extends to the inclination away from rigidity dirt lip 321 in oblique shaft, each flexible sealing lip 321,322 radially distributes, the outer circle wall of described bearing inner race 1 is provided with sealed step groove 11, rigid seal lip 321 and sealed step groove 11 Spielpassung, the axial end 111 of at least one flexible sealing lip and sealed step groove 11 is conflicted and is sealed and matched.The profile design of the flexible sealing lip on rubbery sealed body, reduce the axial length of rubbery sealed body, dustproof cover structure is more compact, bearing inner race adopts sealed step groove coordinate with dust cover, be sealed and matched reliable, and utilize the own feature of sealed step groove on bearing inner race, form sealing, good seal performance, compact structure after assembling, assembles more laborsaving convenience simultaneously.
Further, described bearing inner race 1 outer circle wall is provided with the second sealed step 12 be positioned at inside sealed step groove 11, have at least a flexible sealing lip to be placed in the second sealed step 12, and conflict with the radial end face 121 of the second sealed step 12 and be sealed and matched.Such employing double step design, sealability is better.
In this specific embodiment, described flexible sealing lip is two, be respectively inner side flexible sealing lip 322 and outside flexible sealing lip 321, outer side seal lip 321 is positioned at sealed step groove 11, inner side flexible sealing lip 322 is positioned at the second sealed step 12, and outside flexible sealing lip 321 and rigidity dirt lip 312, between inner side flexible sealing lip 322 and outside flexible sealing lip 321, angle is acute angle design.Certainly as required, more than 3 flexible sealing lips can be designed, but adopt two sealed lip designs can reach seal request, and adopt more than 3 flexible sealing lip designs, project organization of depositing cash is more complicated, processing inconvenience, and the intensity of flexible sealing lip can weaken, and is out of shape the problems such as elastic force variation.
Wherein, the axial end 111 of described sealed step groove 11 is radial end face 112 slope in obtuse angle with sealed step groove 11, and outside flexible sealing lip 321 is conflicted to be formed on slope and is sealed and matched.Improve the flexible sealing lip contacted with the axial end of sealed step groove, be sealed and matched reliability, improves sealability.
Wherein, on rubbery sealed body 32 flexible sealing lip profile design after, can be the straight plate-shaped design of smooth connection by the joint 313 of described rigid backbone 31 and rigidity dust excluder lips 312; Such rigid-skeleton is simple, easy to process.
Dust cover disclosed in the utility model is the dust cover in the sealing configuration of above-mentioned farm machinery bearing, and its structure has obtained detailed description, therefore repeats no longer separately.
Claims (8)
1. the sealing configuration of a farm machinery bearing, include bearing inner race, bearing outer ring and be positioned at bearing, dust cover between outer ring, described dust cover includes rigid backbone, rubbery sealed body is compounded with inside rigid backbone, rubbery sealed body is provided with at least two flexible sealing lips, rigid backbone includes the installation folding being positioned at radial outer end, be positioned at the rigidity dirt lip of radial inner end, and the joint of connection flanging and rigidity dirt lip, described rubbery sealed body is compounded on joint, the installation folding of dust cover is arranged on bearing outer ring, on rubbery sealed body, flexible sealing lip and bearing inner race are conflicted and are sealed and matched, it is characterized in that: the contact sealed end of described flexible sealing lip radially extends to the inclination away from rigidity dirt lip in oblique shaft, each flexible sealing lip radially distributes, the outer circle wall of described bearing inner race is provided with sealed step groove, rigid seal lip and sealed step groove Spielpassung, the axial end of at least one flexible sealing lip and sealed step groove is conflicted and is sealed and matched.
2. the sealing configuration of farm machinery bearing according to claim 1, it is characterized in that: described bearing inner race outer circle wall is provided with the second sealed step be positioned at inside sealed step groove, have at least a flexible sealing lip to be placed in the second sealed step, and conflict with the radial end face of the second sealed step and be sealed and matched.
3. the sealing configuration of farm machinery bearing according to claim 2, it is characterized in that: described flexible sealing lip is two, be respectively inner side flexible sealing lip and outside flexible sealing lip, outboard seal lip portion is positioned at sealed step groove, inner side flexible sealing lip is positioned at the second sealed step, and outside flexible sealing lip and rigidity dirt lip, between inner side flexible sealing lip and outside flexible sealing lip, angle is acute angle design.
4. the sealing configuration of farm machinery bearing according to claim 1 or 2 or 3, is characterized in that: the axial end of described sealed step groove is and the radial end face of sealed step groove slope in obtuse angle.
5. the sealing configuration of farm machinery bearing according to claim 1 or 2 or 3, is characterized in that: the joint of described rigid backbone and rigidity dust excluder lips are the straight tabular of smooth connection.
6. a dust cover, include rigid backbone, rubbery sealed body is compounded with inside rigid backbone, rubbery sealed body is provided with at least two flexible sealing lips, rigid backbone includes the installation folding being positioned at radial outer end, be positioned at the rigidity dirt lip of radial inner end, and the joint of connection flanging and rigidity dirt lip, described rubbery sealed body is compounded on joint, it is characterized in that: the contact sealed end of described flexible sealing lip radially extends to the inclination away from rigidity dirt lip in oblique shaft, and each flexible sealing lip radially distributes.
7. dust cover according to claim 6, it is characterized in that: described flexible sealing lip is two, be respectively inner side flexible sealing lip and outside flexible sealing lip, outside flexible sealing lip and rigidity dirt lip, between inner side flexible sealing lip and outside flexible sealing lip, angle is acute angle design.
8. dust cover according to claim 6 or 7, is characterized in that: the joint of described rigid backbone and rigidity dust excluder lips are the straight tabular of smooth connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674904.8U CN204239483U (en) | 2014-11-13 | 2014-11-13 | A kind of sealing configuration of farm machinery bearing and dust cover thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674904.8U CN204239483U (en) | 2014-11-13 | 2014-11-13 | A kind of sealing configuration of farm machinery bearing and dust cover thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239483U true CN204239483U (en) | 2015-04-01 |
Family
ID=52768983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420674904.8U Expired - Lifetime CN204239483U (en) | 2014-11-13 | 2014-11-13 | A kind of sealing configuration of farm machinery bearing and dust cover thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239483U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847796A (en) * | 2015-06-05 | 2015-08-19 | 安徽利达汽车轴承制造有限公司 | Bearing sealing ring |
| CN106837995A (en) * | 2017-04-10 | 2017-06-13 | 无锡市海峰海林精工机械制造有限公司 | A kind of automobile engine refractory seals bearing |
| CN109958719A (en) * | 2017-12-26 | 2019-07-02 | 舍弗勒技术股份两合公司 | Bearing with contact type sealing structure |
| CN113464565A (en) * | 2021-07-20 | 2021-10-01 | 人本股份有限公司 | Non-contact type sealing bearing |
-
2014
- 2014-11-13 CN CN201420674904.8U patent/CN204239483U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847796A (en) * | 2015-06-05 | 2015-08-19 | 安徽利达汽车轴承制造有限公司 | Bearing sealing ring |
| CN106837995A (en) * | 2017-04-10 | 2017-06-13 | 无锡市海峰海林精工机械制造有限公司 | A kind of automobile engine refractory seals bearing |
| CN109958719A (en) * | 2017-12-26 | 2019-07-02 | 舍弗勒技术股份两合公司 | Bearing with contact type sealing structure |
| CN109958719B (en) * | 2017-12-26 | 2022-07-22 | 舍弗勒技术股份两合公司 | Bearing with contact type sealing structure |
| CN113464565A (en) * | 2021-07-20 | 2021-10-01 | 人本股份有限公司 | Non-contact type sealing bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201400 Fengcheng Town, Fengxian District, Shanghai Patentee after: SHANGHAI C&U DOUBLE ROW BEARING Co.,Ltd. Patentee after: Shanghai renben group bearing technology R & D Co.,Ltd. Address before: 201400 Fengcheng Town, Fengxian District, Shanghai Patentee before: SHANGHAI C&U DOUBLE ROW BEARING Co.,Ltd. Patentee before: SHANGHAI SIBOTE BEARING TECHNOLOGY RESEARCH & DEVELOPMENT Co.,Ltd. |