CN108757737A - A kind of bearing and its fusiform rolling element - Google Patents
A kind of bearing and its fusiform rolling element Download PDFInfo
- Publication number
- CN108757737A CN108757737A CN201810909899.7A CN201810909899A CN108757737A CN 108757737 A CN108757737 A CN 108757737A CN 201810909899 A CN201810909899 A CN 201810909899A CN 108757737 A CN108757737 A CN 108757737A
- Authority
- CN
- China
- Prior art keywords
- circular arc
- rolling element
- contact point
- ring raceway
- inner ring
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 62
- 238000005192 partition Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/34—Rollers; Needles
- F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
- F16C33/6651—Retaining the liquid in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
Abstract
The present invention provides a kind of bearings, rolling element is in contact with outer ring raceway in first make contact and the second contact point, the rolling element is in contact with inner ring raceway in third contact point and the 4th contact point, the rolling element and outer ring raceway are separated by form the first oil storage space between first make contact and the second contact point, the rolling element and inner ring raceway are separated by form the second oil storage space between third contact point and the 4th contact point, the rolling element of this bearing and inner ring and outer ring are two point contact, oil storage space is formed between two point, bearing oil can in entire bearing through-flow, easy to lubricate and heat dissipation, improve running speed.
Description
Technical field
The present invention relates to technical field of bearings more particularly to a kind of bearings and a kind of fusiform rolling element.
Background technology
For rolling bearing during working motion, the way of contact of roller and raceway determines the torque of bearing, carrying, essence
Degree and service life etc..Therefore different shape rolling elements extremely closes the performance of bearing from the way of contact of different shape raceways
It is important.
Rolling bearing is divided by shape is rolled at present：Ball, cylindrical roller, taper roller, spherical roller, needle roller etc..Ball
Contact bearing movable speed is high, running accuracy is high, but load is low；The radial load height of cylinder roller bearing, running accuracy
Height, but axial load is low, movement low velocity；Taper roll bearing can carry axial load and high radial load, but transport
Dynamic speed is low, running accuracy is low；Spheric roller bearing can bear big radial load, and the fine-tuning heart acts on, but movement velocity
It is low, running accuracy is low；Needle bearing energy high-speed motion bears axial load, running accuracy height, but axial load is low.At present
Rolling body bearing it is although various informative, but have no idea to solve that bearing load is relatively low, movement velocity is relatively low, is not easy to store up simultaneously
The problem of oil and lubrication.
Invention content
The technical problem to be solved by the present invention is to：In order to solve rolling element and inner ring or the outer ring of existing rolling bearing
Between be difficult to the problem lubricated, load is relatively low, movement velocity is relatively low by lubricating oil, the present invention provides a kind of bearings to solve
The certainly above problem.
The technical solution adopted by the present invention to solve the technical problems is：A kind of bearing, including：
Outer ring with outer ring raceway,
Inner ring with inner ring raceway, the outer ring raceway are arranged oppositely with inner ring raceway；
The multiple rolling elements being arranged between inner ring raceway and outer ring raceway；
Between the inner ring and outer ring and circumferentially equally distributed retainer by the multiple rolling element interval holding；
The rolling element is in contact with outer ring raceway in first make contact and the second contact point, and the rolling element exists with inner ring raceway
Third contact point and the 4th contact point are in contact, and the rolling element and outer ring raceway are between first make contact and the second contact point
It is separated by form the first oil storage space, the rolling element and inner ring raceway are separated by be formed between third contact point and the 4th contact point
Second oil storage space.
Preferably, the rolling element is separated by form the first gap on the outside of first make contact with outer ring raceway, it is described
Rolling element is separated by form the second gap on the outside of the second contact point with outer ring raceway, and the rolling element is with inner ring raceway in third
It is separated by form third space on the outside of contact point, the rolling element and inner ring raceway are separated by form the on the outside of the 4th contact point
Four gaps.
According to some embodiments, the first make contact, the second contact point, third contact point, the 4th contact point, rolling element
Central axes, the central axes of inner ring and the central axes of outer ring be co-located in the first section；
On the first section：The rolling element includes the first circular arc, the second circular arc and third circular arc, first circular arc and third
The axisymmetric both ends for being connected to the second circular arc of circular arc, the outer ring raceway include first straight line section, second straight line section and the 4th
Circular arc, the first straight line section and the axisymmetric both ends for being connected to the 4th circular arc of second straight line section, the first straight line section with
First circular arc is tangential on the first make contact, and the second straight line section is tangential on second contact point, institute with third circular arc
The second circular arc is stated to be arranged oppositely with the 4th circular arc；
On the first section：The rolling element includes the 5th circular arc, the 6th circular arc and the 7th circular arc, the 5th circular arc and the 7th
The axisymmetric both ends for being connected to the 6th circular arc of circular arc, the inner ring raceway include third straightway, the 4th straightway and the 8th
Circular arc, the third straightway and the axisymmetric both ends for being connected to the 8th circular arc of the 4th straightway, the third straightway with
5th circular arc is tangential on the third contact point, and the 4th straightway and the 7th circular arc are tangential on second contact point, institute
The 6th circular arc is stated to be arranged oppositely with the 8th circular arc.
According to some embodiments, the diameter of the 4th circular arc is less than the diameter of the second circular arc, the 8th circular arc it is straight
Diameter is less than the diameter of the 6th circular arc.
According to some embodiments, first circular arc, third circular arc, the 5th circular arc and the 7th circular arc diameter be less than it is described
The diameter of second circular arc and the 6th circular arc.
According to some embodiments, the retainer includes circular bottom part and multiple partitions, and one end of the partition is fixed on
On circular bottom part, other end has the caulking part of right-angle bending, and the multiple partition is uniformly arranged along circular bottom part, adjacent
There is U-shaped window between two partitions；
The partition of two retainers is inserted between inner ring and outer ring, and the caulking part of two retainers docks and passes through
Rivet is fixed, and the rolling element is located in the U-shaped window.
A kind of fusiform rolling element, the rolling element are formed continuously by several disks along central axes, the rolling element
Axial cross section include about symmetrical first curve of the axis and the second curve, first curve includes the first circle
Arc, the second circular arc and third circular arc, the radius and radian all same of first circular arc and third circular arc and axisymmetric company
It is connected on the both ends of the second circular arc.
Preferably, first arc smooth transition is to the second circular arc, the third arc smooth transition to the second circle
Arc.
The invention has the advantages that the rolling element of this bearing and inner ring and outer ring are two point contact, between two point
Oil storage space is formed, bearing oil through-flow, easy to lubricate and heat dissipation can improve running speed in entire bearing.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of sectional view of embodiment of bearing.
Fig. 2 is a kind of stereogram of embodiment of bearing.
Fig. 3 is a kind of stereogram of the rolling element of embodiment of bearing.
Fig. 4 is a kind of stereogram of the outer ring of embodiment of bearing.
Fig. 5 is a kind of stereogram of the inner ring of embodiment of bearing.
Fig. 6 is a kind of stereogram of the retainer of embodiment of bearing.
Fig. 7 is a kind of three-dimensional partial sectional view of embodiment of bearing.
1, outer ring in figure, 2, inner ring, 3, rolling element, 4, retainer, 5, first make contact, the 6, second contact point, 7, third
Contact point, the 8, the 4th contact point, 101, outer ring raceway, 201, inner ring raceway, 401, circular bottom part, 402, partition, 403, riveting
Portion.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ",
The orientation or positional relationship of the instructions such as " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, merely to just
In the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, it can also be indirectly connected through an intermediary.For the common of this field
For technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.In addition, in description of the invention
In, unless otherwise indicated, the meaning of " plurality " is two or more.
As shown in Fig. 1 ~ 7, a kind of embodiment of bearing, including：
Outer ring 1 with outer ring raceway 101,
Inner ring 2 with inner ring raceway 201, outer ring raceway 101 are arranged oppositely with inner ring raceway 201.
Multiple rolling elements 3 are arranged between inner ring raceway 201 and outer ring raceway 101, and rolling element 3 is similar to spindle, is
It is formed continuously along central axes by several disks, the center of all disks is all on the central axes of rolling element 3.The axis of rolling element 3
To section include about symmetrical first curve of axis and the second curve, the first curve include the first circular arc, the second circular arc and
The radius and radian all same of third circular arc, the first circular arc and third circular arc, the first circular arc and the axisymmetric connection of third circular arc
At the both ends of the second circular arc.
The central axes of the central axes of rolling element 3, the central axes of inner ring 2 and outer ring 1 are co-located in the first section, the first section
It is an axial cross section of rolling element 3.On the first section, outer ring raceway 101 includes first straight line section, second straight line section and the
Four circular arcs, first straight line section and the axisymmetric both ends for being connected to the 4th circular arc of second straight line section, the second circular arc and the 4th circular arc
It is arranged oppositely, and forms the first oil storage space between the second circular arc and the 4th circular arc, the first oil storage space forms bearing oil
The channel of entire bearing is penetrated through, easy to lubricate and heat dissipation improves running speed.First straight line section and second straight line Duan Junyu are rolled
The central axes of body 3 are in certain angle of inclination, and first straight line section is tangential on first make contact 5, second straight line section with the first circular arc
It is tangential on the second contact point 6 with third circular arc.In this example, first straight line section and the first circular arc are in the both sides of first make contact 5
It is respectively formed gap, second straight line section and third circular arc are respectively formed gap in the both sides of the second contact point 6, between the both sides of contact point
Gap is also more easy to that bearing oil is allowed to flow；Ensure inside uniform force when bearing operation using the gap of contact point both sides and reaches most
It is good.Due to first straight line section and second straight line section be to the central axes of inner ring 2 tilt, the outer ring 1 correspond to first straight line section and
The part of second straight line section is thicker, and contact point, which is located at thicker part, makes bearing have better rigidity, is conducive to antivibration, reduces
Bearing movable noise extends bearing service life, increases reliability.4th circular arc as first straight line section and second straight line section it
Between circular sliding slopes part, be conducive to stress release when bearing movable, bearing body intensity increases.And first straight line section stress
On the first circular arc, stress release of the second straight line section stress when third circular arc is also all conducive to bearing movable, bearing body is strong
Degree increases.
Second curve includes the 5th circular arc, the 6th circular arc and the 7th circular arc, the radius and arc of the 5th circular arc and the 7th circular arc
Spend all same, the 5th circular arc and the axisymmetric both ends for being connected to the 6th circular arc of the 7th circular arc.
On the first section, inner ring raceway 201 includes third straightway, the 4th straightway and the 8th circular arc, third straight line
Section and the axisymmetric both ends for being connected to the 8th circular arc of the 4th straightway, the 6th circular arc are arranged oppositely with the 8th circular arc, and
The second oil storage space is formed between 6th circular arc and the 8th circular arc, the second oil storage space forms bearing oil and penetrates through the logical of entire bearing
Road, easy to lubricate and heat dissipation, improves running speed.Third straightway and the 4th straightway are in one with the central axes of rolling element 3
Fixed angle of inclination, third straightway and the 5th circular arc are tangential on third contact point 7, and the 4th straightway is tangential on the 7th circular arc
4th contact point 8.In this example, third straightway and the 5th circular arc are respectively formed gap in the both sides of third contact point 7, and the 4th is straight
Line segment and the 7th circular arc are respectively formed gap in the both sides of the 4th contact point 8, and the gap of the both sides of contact point is also more easy to allow bearing oil
Flowing；Ensure inside uniform force when bearing operation using the gap of contact point both sides and reaches best.Due to third straightway
With the 4th straightway tilted to the central axes of rolling element 3, the inner ring 2 corresponds to the part of third straightway and the 4th straightway
Thicker, contact point, which is located at thicker part, makes bearing have better rigidity, is conducive to antivibration, reduces bearing movable noise, prolongs
Long bearing service life increases reliability.8th circular arc is as the circular sliding slopes portion between third straightway and the 4th straightway
Point, be conducive to stress release when bearing movable, bearing body intensity increases.And third straightway stress is on the 5th circular arc,
Stress release of the 4th straightway stress when the 7th circular arc is also all conducive to bearing movable, bearing body intensity increase.
In this example, the diameter of the 4th circular arc is less than the diameter of the second circular arc, and the diameter of the 8th circular arc is less than the 6th circular arc
Diameter；First circular arc, third circular arc, the 5th circular arc and the 7th circular arc diameter be less than the straight of the second circular arc and the 6th circular arc
Diameter.First circular arc and third arc smooth transition to the second circular arc, the 5th circular arc and the 7th arc smooth transition to the 6th circular arc,
Further be conducive to stress release.
Bearing further includes that 3 interval holding of multiple rolling elements is between inner ring 2 and outer ring 1 and circumferentially equally distributed
Two retainers 4.Retainer 4 includes circular bottom part 401 and multiple partitions 402, and one end of partition 402 is fixed on circular bottom part
On 401, other end has the caulking part 403 of right-angle bending, and multiple partitions 402 are uniformly arranged along circular bottom part 401, adjacent
There is U-shaped window between two partitions 402；The partition 402 of two retainers 4 is inserted between inner ring 2 and outer ring 1, two holdings
The caulking part 403 of frame 4 is docked and is fixed by rivet, and rolling element 3 is located in U-shaped window.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, not to the schematic representation of the term
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (8)
1. a kind of bearing, including：
Outer ring with outer ring raceway,
Inner ring with inner ring raceway, the outer ring raceway are arranged oppositely with inner ring raceway；
The multiple rolling elements being arranged between inner ring raceway and outer ring raceway；
Between the inner ring and outer ring and circumferentially equally distributed retainer by the multiple rolling element interval holding, feature
It is：The rolling element is in contact with outer ring raceway in first make contact and the second contact point, the rolling element and inner ring raceway
Be in contact in third contact point and the 4th contact point, the rolling element and outer ring raceway first make contact and the second contact point it
Between be separated by form the first oil storage space, the rolling element and inner ring raceway are separated by shape between third contact point and the 4th contact point
At the second oil storage space.
2. bearing as described in claim 1, it is characterised in that：The rolling element is with outer ring raceway in the outside of first make contact
It is separated by form the first gap, the rolling element is separated by form the second gap on the outside of the second contact point with outer ring raceway, described
Rolling element is separated by form third space on the outside of third contact point with inner ring raceway, and the rolling element is with inner ring raceway the 4th
It is separated by form the 4th gap on the outside of contact point.
3. bearing as claimed in claim 2, it is characterised in that：The first make contact, the second contact point, third contact point,
4th contact point, the central axes of rolling element, the central axes of inner ring and the central axes of outer ring are co-located in the first section；
On the first section：The rolling element includes the first circular arc, the second circular arc and third circular arc, first circular arc and third
The axisymmetric both ends for being connected to the second circular arc of circular arc, the outer ring raceway include first straight line section, second straight line section and the 4th
Circular arc, the first straight line section and the axisymmetric both ends for being connected to the 4th circular arc of second straight line section, the first straight line section with
First circular arc is tangential on the first make contact, and the second straight line section is tangential on second contact point, institute with third circular arc
The second circular arc is stated to be arranged oppositely with the 4th circular arc；
On the first section：The rolling element includes the 5th circular arc, the 6th circular arc and the 7th circular arc, the 5th circular arc and the 7th
The axisymmetric both ends for being connected to the 6th circular arc of circular arc, the inner ring raceway include third straightway, the 4th straightway and the 8th
Circular arc, the third straightway and the axisymmetric both ends for being connected to the 8th circular arc of the 4th straightway, the third straightway with
5th circular arc is tangential on the third contact point, and the 4th straightway and the 7th circular arc are tangential on second contact point, institute
The 6th circular arc is stated to be arranged oppositely with the 8th circular arc.
4. bearing as claimed in claim 3, it is characterised in that：The diameter of 4th circular arc is less than the diameter of the second circular arc,
The diameter of 8th circular arc is less than the diameter of the 6th circular arc.
5. bearing as claimed in claim 4, it is characterised in that：First circular arc, third circular arc, the 5th circular arc and the 7th circle
The diameter of arc is less than the diameter of second circular arc and the 6th circular arc.
6. bearing as claimed in claim 5, it is characterised in that：The retainer includes circular bottom part and multiple partitions, described
One end of partition is fixed on circular bottom part, and other end has the caulking part of right-angle bending, and the multiple partition is along annular
Bottom is uniformly arranged, and has U-shaped window between two neighboring partition；
The partition of two retainers is inserted between inner ring and outer ring, and the caulking part of two retainers docks and passes through
Rivet is fixed, and the rolling element is located in the U-shaped window.
7. a kind of fusiform rolling element, it is characterised in that：The rolling element is formed continuously by several disks along central axes, institute
The axial cross section for stating rolling element includes about symmetrical first curve of the axis and the second curve, and first curve includes
First circular arc, the second circular arc and third circular arc, the radius and radian all same and axis pair of first circular arc and third circular arc
The both ends for being connected to the second circular arc claimed.
8. rolling element as claimed in claim 7, it is characterised in that：First arc smooth transition is described to the second circular arc
Third arc smooth transition is to the second circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909899.7A CN108757737A (en) | 2018-08-10 | 2018-08-10 | A kind of bearing and its fusiform rolling element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810909899.7A CN108757737A (en) | 2018-08-10 | 2018-08-10 | A kind of bearing and its fusiform rolling element |
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| Publication Number | Publication Date |
|---|---|
| CN108757737A true CN108757737A (en) | 2018-11-06 |
Family
ID=63969569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810909899.7A Pending CN108757737A (en) | 2018-08-10 | 2018-08-10 | A kind of bearing and its fusiform rolling element |
Country Status (1)
| Country | Link |
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| CN (1) | CN108757737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555274A (en) * | 2020-12-03 | 2021-03-26 | 青岛万宝压缩机有限公司 | External bearing device, compressor and method |
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| CN112555274A (en) * | 2020-12-03 | 2021-03-26 | 青岛万宝压缩机有限公司 | External bearing device, compressor and method |
| CN112555274B (en) * | 2020-12-03 | 2022-08-16 | 青岛万宝压缩机有限公司 | External bearing device, compressor and method |
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