CN204419859U - A kind of novel tapered roller bearing - Google Patents
A kind of novel tapered roller bearing Download PDFInfo
- Publication number
- CN204419859U CN204419859U CN201420767116.3U CN201420767116U CN204419859U CN 204419859 U CN204419859 U CN 204419859U CN 201420767116 U CN201420767116 U CN 201420767116U CN 204419859 U CN204419859 U CN 204419859U
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- CN
- China
- Prior art keywords
- tapered roller
- raceway face
- axis
- ring raceway
- section
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- 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.)
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Abstract
The utility model discloses a kind of novel tapered roller bearing, comprise inner ring, outer ring, some tapered rollers, retainer, the rolling surface of tapered roller and tapered roller are along the medial axis week of tapered roller outwardly camber line along the intersection line of any section of its axis, and the rolling surface of tapered roller and tapered roller configure along the intersection line of each section of its axis around the medial axis annular array of tapered roller.The utility model can improve bearing pivoting friction contact conditions, is conducive to significantly reducing pivot friction power, extends bearing life, improves rotating speed, friction when decreasing bearing working and heating value.
Description
Technical field
The utility model relates to tapered roller bearing, is specifically related to a kind of novel tapered roller bearing.
Background technique
As everyone knows, bearing is a kind of standard piece of routine, and tapered roller bearing is wherein owing to can bear axially and radial thrust and volume is little and be widely used simultaneously.But for a long time due to the restriction by its structure and accuracy of manufacturing, be generally used for middle low-speed heave-load industry, but recently along with the continuous breakthrough of its correlation technique, its accuracy of manufacturing and rotating speed are all enhanced, its less volume and excellent performance are just receiving the concern of vast auto manufacturing, therefore develop low noise, high speed circular taper roller bearing is the difficult problem that bearing industry is making great efforts to capture for a long time always.
The appearance of tapered roller bearing, its advantage is directed to construction design of journal bearings itself.This bearing is normally made up of four parts, namely cone, on inner ring, maintain a row roller by shaped as frame retainer, and outer ring.Inner ring and the outer ring of same bearing can be assemblings, also can be separated.The latter is easily being assembled on axle or in bearing support.With regard to its bearing feature, tapered roller bearing can bear radial load, axial load, or both synthetic loads.On the other hand, with regard to its volume, the linear contact lay that rolling element produces under load, give the maximum load bearing capacity of conical bearing, tapered roller bearing can substitute the combination of dissimilar bearing primely simultaneously, to bear axis and the radial load of various gear, thus when bearing has same life, space shared by conical bearing, more much smaller than the volume of cylindrical roller and ball one group of combination bearing.Bearing also has the advantages such as rigidity is large, performance is good, so it is widely used in all mechanical transmission based on automobile simultaneously.
Meanwhile, due to the special construction of tapered roller bearing, although there is above-mentioned many advantage and disadvantages, also along with inevitable shortcoming.Inner ring, between outer ring and tapered roller each other with slip, so larger than the Friction Moment of Ball Bearings of same size many; Secondly by the narrow limitation of existing product design method, the friction more causing bearing to run strengthens, and thus it can only be applicable to the use of middle low speed occasion usually, and this shortcoming is more and more fatal for high speed situation to market and user.
Model utility content
For the deficiencies in the prior art, the novel tapered roller bearing that the purpose of this utility model is to provide a kind of and goes slick, surface friction drag is low.
The technical solution adopted in the utility model is as follows.
A kind of novel tapered roller bearing, comprising:
Inner ring, it forms inner ring raceway face at it on outer circumferential face, and its path side has inner ring outward flange, and its side, large footpath has inner ring inward flange;
Outer ring, it forms outer ring raceway face on inner peripheral surface;
Some tapered rollers, described tapered roller circumferentially configures and freely rolls between inner ring raceway face and outer ring raceway face;
Retainer, retainer utilization is formed in its multiple pillar and path side annular portion and the multiple pocket holes greatly between the annular portion of side, footpath and keeps described tapered roller, wherein, described path side annular portion and the annular array configuration vertically of large side, footpath annular portion, described large footpath side annular portion and path side annular portion link by described multiple pillar vertically, and circumferentially arrange roughly equally spacedly.
The rolling surface of tapered roller and tapered roller are along the medial axis week of tapered roller outwardly camber line along the intersection line of any section of its axis, and the rolling surface of tapered roller and tapered roller configure along the intersection line of each section of its axis around the medial axis annular array of tapered roller.
Further, the string of each camber line center to arc peak between distance be 0.2-0.5 μm.
Further, tapered roller along any section of its axis and outer ring raceway face, the intersection in inner ring raceway face is line segment, the tangential that the intersection of the rolling surface of described line segment and this section and tapered roller is formed; Tapered roller along each section of its axis and outer ring raceway face, the intersection line in inner ring raceway face configures around the medial axis annular array of tapered roller.
Further, tapered roller along any section of its axis and outer ring raceway face, the intersection in inner ring raceway face is camber line, described camber line and this section contact with the camber line summit that the intersection of the rolling surface of tapered roller is formed and the radian of camber line that formed of identical and its radian is less than the rolling surface of this section and the tapered roller intersection of protrusion direction; Tapered roller along each section of its axis and outer ring raceway face, the intersection line in inner ring raceway face configures around the medial axis annular array of tapered roller.
Further, the outer side surface of the outer end of retainer is provided with outer seal sleeve.
Further, do not contact between outer seal sleeve with outer ring, the distance of the medial axis of the outer surface any point distance main shaft of outer seal sleeve is less than the distance of the medial axis of the outer surface any point distance main shaft of outer ring.
Further, the outer side surface of the inner of retainer is provided with inner seal sleeve.
Further, do not contact between inner seal sleeve with outer ring, the distance of the medial axis of the outer surface any point distance main shaft of inner seal sleeve is less than the distance of the medial axis of the outer surface any point distance main shaft of outer ring.
The beneficial effects of the utility model are as follows.
Inventor, by a large amount of experimental studies, has found to cause for a long time the main cause of friction to cause greatly due to tapered roller and inner ring, outer ring area of contact.The contact of the inner ring of tapered roller bearing, outer ring and tapered roller is contacted by face and changes smooth single-contact into by the utility model, lead to thus reduce point of contact quantity, fundamentally improve bearing pivoting friction contact conditions, be conducive to significantly reducing pivot friction power, extend bearing life, improve rotating speed.Friction when greatly reducing bearing working and heating value.
The utility model is by changing the relative dimensions of tapered roller, inner ring, outer ring part, for lubricating oil flow provides larger passage, reach the lubrication circumstances and working condition of improving bearing further, comprehensively can improve bearing flexibility of revolution operationally, stationarity, and effectively reduce noise.
Be provided with inner seal sleeve, outer seal sleeve, can effectively prevent dust from entering Bearing inner, improve precision and the application area of bearing.Inner seal sleeve, outer seal sleeve and outer ring do not contact and its outer surface lower than the outer surface of outer ring, make outer ring axial motion not affect the sealing of inner seal sleeve, outer seal sleeve, improve sealability.The utility model can be suitable for being used as at general industrial machinery, tapered roller bearing used in the car.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Fig. 2 is the partial enlarged drawing of Figure 1A part.
Fig. 3 is the structural representation of another preferred embodiment of the utility model.
Fig. 4 is the partial enlarged drawing of Fig. 3 part B.
Wherein: inner ring-1; Inner ring raceway face-101; Inner ring outward flange-11; Inner ring inward flange-12; Retainer-2; Path side annular portion-21; Side, large footpath annular portion-22; Outer ring-3; Outer ring raceway face-301; Tapered roller-4; Rolling surface-41; Camber line-42; Line segment-43; Camber line-44; Inner seal sleeve-5; Outer seal sleeve-6; Pillar-7; The medial axis-8 of main shaft.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment 1.As shown in Figure 1 and Figure 2, a kind of novel tapered roller bearing, comprising:
Inner ring 1, it forms inner ring raceway face 101 at it on outer circumferential face, and its path side has inner ring outward flange 11, and its side, large footpath has inner ring inward flange 12.
Outer ring 3, it forms outer ring raceway face 301 on inner peripheral surface.
Some tapered rollers 4, described tapered roller circumferentially configures and freely rolls between inner ring raceway face 101 and outer ring raceway face 301.
Retainer 2, retainer 2 utilization is formed in its multiple pillar 7 and path side annular portion 21 and the multiple pocket holes greatly between side, footpath annular portion 22 and keeps described tapered roller 4, wherein, described path side annular portion 21 and large side, footpath annulus 22 annular array configuration vertically, side, described large footpath annular portion 22 and path side annular portion 21 link by described multiple pillar 7 vertically, and circumferentially arrange roughly equally spacedly.
The rolling surface 41 of tapered roller and tapered roller 4 are along the medial axis week of tapered roller outwardly camber line 42 along the intersection line of any section of its axis, and the rolling surface 41 of tapered roller configures around the medial axis annular array of tapered roller with the intersection line of tapered roller along each section of its axis.
The center of the string of each camber line 42 to arc peak between distance be 0.2-0.5 μm.
Tapered roller along any section of its axis and outer ring raceway face, the intersection in inner ring raceway face is line segment 43, the camber line 42 that the intersection of the rolling surface 41 of described line segment 43 and this section and tapered roller is formed is tangent; Tapered roller along each section of its axis and outer ring raceway face, the intersection line (i.e. line segment 43) in inner ring raceway face configures around the medial axis annular array of tapered roller.
The outer side surface of the outer end of retainer 2 is provided with outer seal sleeve 6.Do not contact between outer seal sleeve 6 with outer ring 3.The outer side surface of the inner of retainer 2 is provided with inner seal sleeve 5.Do not contact between inner seal sleeve 5 with outer ring 3.
Embodiment 2.As shown in Figure 3, Figure 4, unique different of the present embodiment and embodiment 1 are:
Tapered roller 4 along any section of its axis and outer ring raceway face, the intersection in inner ring raceway face is camber line 44, described camber line and this section contact with camber line 42 summit that the intersection of the rolling surface 41 of tapered roller is formed and the radian of camber line 42 that formed of identical and its radian is less than the rolling surface of this section and the tapered roller intersection of protrusion direction; Tapered roller along each section of its axis and outer ring raceway face, the intersection line (i.e. camber line 44) in inner ring raceway face configures around the medial axis annular array of tapered roller.
The distance of the medial axis 8 of the outer surface any point distance main shaft of outer seal sleeve 6 is less than the distance of the medial axis 8 of the outer surface any point distance main shaft of outer ring 3.
The distance of the medial axis 8 of the outer surface any point distance main shaft of inner seal sleeve 5 is less than the distance of the medial axis 8 of the outer surface any point distance main shaft of outer ring 3.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a novel tapered roller bearing, comprising:
Inner ring, it forms inner ring raceway face at it on outer circumferential face, and its path side has inner ring outward flange, and its side, large footpath has inner ring inward flange;
Outer ring, it forms outer ring raceway face on inner peripheral surface;
Some tapered rollers, described tapered roller circumferentially configures and freely rolls between inner ring raceway face and outer ring raceway face;
Retainer, retainer utilization is formed in its multiple pillar and path side annular portion and the multiple pocket holes greatly between the annular portion of side, footpath and keeps described tapered roller, wherein, described path side annular portion and the annular array configuration vertically of large side, footpath annular portion, described large footpath side annular portion and path side annular portion link by described multiple pillar vertically, and circumferentially arrange roughly equally spacedly
It is characterized in that:
The rolling surface of tapered roller and tapered roller are along the medial axis week of tapered roller outwardly camber line along the intersection line of any section of its axis, and the rolling surface of tapered roller and tapered roller configure along the intersection line of each section of its axis around the medial axis annular array of tapered roller.
2. a kind of novel tapered roller bearing as claimed in claim 1, is characterized in that: the center of the string of each camber line to arc peak between distance be 0.2-0.5 μm.
3. a kind of novel tapered roller bearing as claimed in claim 2, it is characterized in that: tapered roller along any section of its axis and outer ring raceway face, the intersection in inner ring raceway face is line segment, the tangential that the intersection of the rolling surface of described line segment and this section and tapered roller is formed; Tapered roller along each section of its axis and outer ring raceway face, the intersection line in inner ring raceway face configures around the medial axis annular array of tapered roller.
4. a kind of novel tapered roller bearing as claimed in claim 2, it is characterized in that: tapered roller along any section of its axis and outer ring raceway face, the intersection in inner ring raceway face is camber line, described camber line and this section contact with the camber line summit that the intersection of the rolling surface of tapered roller is formed and the radian of camber line that formed of identical and its radian is less than the rolling surface of this section and the tapered roller intersection of protrusion direction; Tapered roller along each section of its axis and outer ring raceway face, the intersection line in inner ring raceway face configures around the medial axis annular array of tapered roller.
5. a kind of novel tapered roller bearing as claimed in claim 1, is characterized in that: the outer side surface of the outer end of retainer is provided with outer seal sleeve.
6. a kind of novel tapered roller bearing as claimed in claim 5, it is characterized in that: do not contact between outer seal sleeve with outer ring, the distance of the medial axis of the outer surface any point distance main shaft of outer seal sleeve is less than the distance of the medial axis of the outer surface any point distance main shaft of outer ring.
7. a kind of novel tapered roller bearing as claimed in claim 1, is characterized in that: the outer side surface of the inner of retainer is provided with inner seal sleeve.
8. a kind of novel tapered roller bearing as claimed in claim 7, it is characterized in that: do not contact between inner seal sleeve with outer ring, the distance of the medial axis of the outer surface any point distance main shaft of inner seal sleeve is less than the distance of the medial axis of the outer surface any point distance main shaft of outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767116.3U CN204419859U (en) | 2014-12-09 | 2014-12-09 | A kind of novel tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767116.3U CN204419859U (en) | 2014-12-09 | 2014-12-09 | A kind of novel tapered roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419859U true CN204419859U (en) | 2015-06-24 |
Family
ID=53470232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420767116.3U Expired - Fee Related CN204419859U (en) | 2014-12-09 | 2014-12-09 | A kind of novel tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801504A (en) * | 2018-03-07 | 2020-10-20 | 住友重机械工业株式会社 | Radial oblique roller bearing |
-
2014
- 2014-12-09 CN CN201420767116.3U patent/CN204419859U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801504A (en) * | 2018-03-07 | 2020-10-20 | 住友重机械工业株式会社 | Radial oblique roller bearing |
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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 |
Granted publication date: 20150624 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |