CN105782235B - Vibration bearing - Google Patents
Vibration bearing Download PDFInfo
- Publication number
- CN105782235B CN105782235B CN201410820847.4A CN201410820847A CN105782235B CN 105782235 B CN105782235 B CN 105782235B CN 201410820847 A CN201410820847 A CN 201410820847A CN 105782235 B CN105782235 B CN 105782235B
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- China
- Prior art keywords
- outer ring
- vibration bearing
- raceway
- inner ring
- neutral plane
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- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to vibration bearings.The vibration bearing is mainly made of outer ring, rolling element and inner ring, and Internal and external cycle is equipped with raceway, and rolling element is assembled in raceway, wherein axial (rotation) the centerline certain distance of axial (rotation) center line of inner ring and outer ring.The characteristics of vibration bearing of the invention, is that inner ring raceway forms angle relative to the neutral plane inclination among two axial end faces for being located at vibration bearing, and outer ring raceway is set as non-linear.Vibration bearing of the invention has simple and reliable design, is easy installation and maintenance.Moreover, vibration bearing of the invention can effectively avoid centrifugal force caused by eccentric mass compared with traditional eccentric wheel or vibrating screen, the efficiency of drive system is greatly improved.
Description
Technical field
The present invention relates to rolling bearings, and in particular to vibration bearing, particularly radial vibration bearing.
Background technique
Vibration bearing is widely used in the mechanical equipments such as vibrating screen, vibrating motor and vibrated roller, for providing vibration
Movement.The method for generating vibration at present is to be used as vibration bearing inner ring using solid shafting.Inner ring rotate (axial direction) center line with it is interior
The geometric center lines of circle are separated by a certain distance.Therefore, rotation (axial direction) center line in outer ring is also with inner ring rotation centerline at a distance of one
Set a distance.When the inner ring rotates, the radial position of outer ring changes correspondingly, and thus vibration bearing provides vibration motion.
The problem of traditional vibration bearing, is, when the geometric center lines of inner ring rotation centerline and inner ring are separated by a certain distance
When, solid inner ring is equivalent to an eccentric wheel.Vibration bearing mass center is rotated around rotation centerline.When rotation speed is higher
When, this eccentric mass will generate biggish centrifugal force.This, which will lead to, brings biggish load to entire drive system, and
Unbalanced active force will lead to system fail in a short time.
Summary of the invention
The present invention provides a kind of improved vibration bearing.The vibration bearing is mainly made of outer ring, rolling element and inner ring,
Internal and external cycle is equipped with raceway, and rolling element is assembled in raceway, wherein axial (rotation) center line of inner ring and outer ring rotation center
Line is separated by a certain distance.The characteristics of vibration bearing of the invention, is that inner ring raceway is relative to two axis for being located at vibration bearing
To the neutral plane inclination among end face, angle is formed, and outer ring raceway is set as non-linear.
According to the present invention, when inner ring rotates about center line rotation, rolling element is rotated along inclined raceway.And because
Outer ring raceway is not linear, so radial position is different under first state and the second state for outer ring,
In first state, rolling element close to vibration bearing axial end face, in the second state, axis of the rolling element far from vibration bearing
To end face.Therefore, as inner ring rotates, outer ring is radially moved up and down, and thus generates vibration motion.It is according to the present invention
In vibration bearing, the rotary motion of inner ring is transformed into the radial linear movement of outer ring, and the radial linear movement of outer ring generates vibration
Dynamic moving displacement, radial motion displacement, which can according to need, to be configured, and vibration frequency can be changed by changing rotation speed
Become.
According to the present invention, the angle formed between inner ring raceway and neutral plane, which can according to need, to be adjusted, usually
In 0-45 degree.
According to an embodiment of the invention, rolling element is biserial, two column rolling elements are arranged symmetrically about the neutral plane.
According to an embodiment of the invention, outer ring raceway is set as Curved and symmetrical about the neutral plane, have big
In 0 curvature, the center of curvature is arranged on the rotation centerline of outer ring or is arranged on the either side of outer ring rotation centerline.
According to another embodiment of the present invention, outer ring raceway is set as the shape of two intersecting straight lines, two intersecting straight lines
With neutral plane out of plumb and symmetrical about neutral plane, intersection point is located on neutral plane.
According to an embodiment of the invention, radial distance between outer ring raceway and inner ring raceway is therefrom mild-natured to face axial end
Face increases.According to other embodiments of the present invention, the radial distance between outer ring raceway and inner ring raceway is therefrom mild-natured faces axis
Reduce to end face.
According to an embodiment of the invention, inner ring raceway is the form of the groove on the outer surface of inner ring.
Vibration bearing of the invention has simple and reliable design, is easy installation and maintenance.Moreover, with traditional eccentric wheel
Or vibrating screen is compared, vibration bearing of the invention can effectively avoid centrifugal force caused by above-mentioned traditional eccentric mass, pole
The earth improves the efficiency of drive system.The present invention is suitable also for much applying, including but not limited to Portable electric drilling tool
Or vibrating screen.
Detailed description of the invention
Those skilled in the art by referring to accompanying drawing, pass through the detailed description of hereafter exemplary embodiment, it will be apparent that and reason
Solve these and other aspects of the invention and advantage.In figure:
Fig. 1 is the section view of vibration bearing according to a first embodiment of the present invention；
Fig. 2 is the section view of vibration bearing according to a second embodiment of the present invention；
Fig. 3 is the section view of vibration bearing according to a third embodiment of the present invention；
Fig. 4 is the section view of vibration bearing according to a fourth embodiment of the present invention.
Reference signs list
1 outer ring
2 rolling elements
3 inner rings
4 outer ring raceways
5 inner ring raceways
CoThe outer ring raceway center of curvature
CLoOuter ring rotation centerline
CLiInner ring rotation centerline
V radial direction
The direction of rotation R
α angle
NP neutral plane
Specific embodiment
Below in the detailed description of exemplary embodiment, each feature and aspect of the invention are described by referring to Fig.1-2.
Fig. 1 shows vibration bearing according to an embodiment of the present invention.As shown in Figure 1, vibration bearing mainly includes outer ring 1, it is interior
Circle 3, two column rolling elements 2.Curved raceway 4 is set on outer ring 1, two raceways 5 are set on inner ring 3, it is outside in the week of inner ring
The form of groove on surface is respectively used to two column rolling elements 2 (in this case, it is balls).The rotation centerline CLi of inner ring 3 and
The rotation centerline CLo of outer ring 1 is separated by a certain distance.Two raceways 5 are relative in two axial end faces of vibration bearing
Between neutral plane NP inclination and it is symmetrical about the neutral plane, slanted angle α be 0-45 degree.The raceway 4 of outer ring 1 is bending
Shape, center of curvature CoThe rotation centerline CL of outer ring 1 is setoSide on (in Fig. 1 be located at upside).
When inner ring 3 rotates about center line CLi rotation, rolling element 2 is rotated along inclined raceway 5.Due to outer ring 1
The not instead of linear of raceway 4 has the curvature greater than 0, so when rolling element 2 is close to axial end face and far from axial end face
Two states under, the radial position of outer ring 1 has differences.Therefore, radially V is moved up and down for outer ring 1, thus generates vibration
Dynamic movement.
Fig. 2 shows vibration bearings according to another embodiment of the present invention.As shown in Fig. 2, it is different from the raceway 4 in Fig. 1, outside
The raceway 4 of circle 1 is set as two intersecting straight lines shapes, intersecting straight lines and neutral plane NP out of plumb and about the neutral plane pair
Claim, intersection point is located on neutral plane NP.When the slanted angle α of the raceway 5 of inner ring 3 is larger, and the inclination angle of the raceway 4 of outer ring 1
When spending larger, the radial motion displacement of outer ring 1 also can be larger.
The present invention is described above with reference to exemplary embodiment.But by reading and understanding specification of the invention and
Attached drawing, it may occur to persons skilled in the art that other modifications and replacement.For example, vibration bearing can be single-row or multiple row type,
Rolling element can be roller, spherical roller etc..In addition, though Fig. 1 and Fig. 2 show the radial distance between inner ring and outer ring from
Neutral plane reduces towards two axial end faces, but the radial distance between inner ring and outer ring therefrom mild-natured can also face two
Axial end face increases, as shown in Figures 3 and 4.Therefore, the present invention is not limited to embodiments described above, but can want in right
It asks and the present invention is modified and changed in the range of book.The invention is intended to comprising all these modifications and replacement, they
It each falls in the range of attached the spirit and scope of the invention.
Claims (8)
1. a kind of vibration bearing, the vibration bearing includes outer ring, rolling element and inner ring, and Internal and external cycle is equipped with raceway, rolling element
It is assembled in raceway, wherein inner ring rotation centerline is separated by a certain distance with outer ring rotation centerline, which is characterized in that inner ring
Raceway forms the angle of non-zero relative to the neutral plane inclination among two axial end faces for being located at vibration bearing, and outer ring
Raceway is set as non-linear.
2. vibration bearing according to claim 1, which is characterized in that the angle formed between inner ring raceway and neutral plane
Between 0-45 degree.
3. vibration bearing according to claim 1, which is characterized in that the rolling element be biserial, two column rolling elements about
The neutral plane is arranged symmetrically.
4. vibration bearing according to any one of claim 1-3, which is characterized in that outer ring raceway is set as Curved,
With the curvature greater than 0 and symmetrical about the neutral plane, the center of curvature is arranged on the rotation centerline of outer ring or arranges
On the either side of outer ring rotation centerline.
5. vibration bearing according to any one of claim 1-3, which is characterized in that outer ring raceway is set as in two phases
The shape of straight line is handed over, two intersecting straight lines are with the neutral plane out of plumb and symmetrical about the neutral plane, and intersection point is located at
On the neutral plane.
6. vibration bearing according to claim 4, which is characterized in that the radial direction between the outer ring raceway and inner ring raceway
Distance is increased or reduced from the neutral plane towards the axial end face.
7. vibration bearing according to claim 5, which is characterized in that the radial direction between the outer ring raceway and inner ring raceway
Distance is increased or reduced from the neutral plane towards the axial end face.
8. vibration bearing according to any one of claim 1-3, which is characterized in that the inner ring raceway is the inner ring
Outer surface on groove form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410820847.4A CN105782235B (en) | 2014-12-24 | 2014-12-24 | Vibration bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410820847.4A CN105782235B (en) | 2014-12-24 | 2014-12-24 | Vibration bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782235A CN105782235A (en) | 2016-07-20 |
| CN105782235B true CN105782235B (en) | 2019-11-29 |
Family
ID=56378546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410820847.4A Active CN105782235B (en) | 2014-12-24 | 2014-12-24 | Vibration bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105782235B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE449908B (en) * | 1984-09-26 | 1987-05-25 | Skf Ab | ROLLER BEARINGS WHERE THE ROLLERS AND ROPES ARE CROSSED LENGTH CROSS PROFILES |
| DE4028273A1 (en) * | 1990-09-06 | 1992-03-12 | Kugelfischer G Schaefer & Co | Bearing for disc storage spindles - has track of outer rings provided with radius whose centre sits on fulcrum of inner track |
| DE102007049738B3 (en) * | 2007-10-16 | 2008-12-24 | Ab Skf | Roller bearing for rolling bodies i.e. balls, has inner running path unit and outer running path unit, where each unit is formed such that all center points of circumferential lines are different when observing perpendicular to surfaces |
| US8257210B2 (en) * | 2008-05-27 | 2012-09-04 | Jtekt Corporation | Rotation urging mechanism and pulley device |
| JP2011069408A (en) * | 2009-09-24 | 2011-04-07 | Jtekt Corp | Turn energizing mechanism and pulley device including the same |
| JP2011089613A (en) * | 2009-10-23 | 2011-05-06 | Jtekt Corp | Turning energizing device and pulley device equipped with the same |
| JP2012202453A (en) * | 2011-03-24 | 2012-10-22 | Jtekt Corp | Self-aligning roller bearing |
| CN102518661A (en) * | 2011-11-30 | 2012-06-27 | 新昌县新凌凯博机械有限公司 | Special bearing for oscillating machinery |
| CN102943815B (en) * | 2012-11-23 | 2015-04-15 | 宁波新大地轴承有限公司 | Eccentric bearing and multifunctional saw |
| CN202971566U (en) * | 2012-11-30 | 2013-06-05 | 马鞍山统力回转支承有限公司 | Tilting bearing |
-
2014
- 2014-12-24 CN CN201410820847.4A patent/CN105782235B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105782235A (en) | 2016-07-20 |
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