CN114046315A - Bearing of flexible raceway - Google Patents
Bearing of flexible raceway Download PDFInfo
- Publication number
- CN114046315A CN114046315A CN202111423644.8A CN202111423644A CN114046315A CN 114046315 A CN114046315 A CN 114046315A CN 202111423644 A CN202111423644 A CN 202111423644A CN 114046315 A CN114046315 A CN 114046315A
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- CN
- China
- Prior art keywords
- raceway
- flexible outer
- outer ring
- ring
- bearing
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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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- 238000005096 rolling process Methods 0.000 claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- F16C33/583—Details of specific parts of races
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/20—Application independent of particular apparatuses related to type of movement
- F16C2300/22—High-speed rotation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A bearing with a deformable raceway relates to a bearing. The invention solves the problem that the existing bearing cannot be suitable for multiple working conditions due to single raceway size. A flexible outer ring (2) is sleeved on a bearing inner ring (3), the flexible outer ring (2) is in rolling connection with the bearing inner ring (3) through a plurality of first rolling bodies (4), a plurality of raceway deformation units are processed on the inner side wall of a fixed ring (1), each raceway deformation unit comprises a fixed fulcrum (1-1), a transition section (1-2) and a landslide (1-3), and the fixed fulcrum (1-1), the transition section (1-2) and the landslide (1-3) are sequentially connected; the fixed ring (1) is sleeved on the flexible outer ring (2), the plurality of groups of raceway deformation components are installed between the fixed ring (1) and the flexible outer ring (2), and the raceway deformation components extrude the flexible outer ring (2) to deform to realize the change of the shape of the raceway by clockwise and anticlockwise rotation of the flexible outer ring (2). The invention is used in the field of high-speed light-load machinery.
Description
Technical Field
The invention relates to a bearing, in particular to a bearing with a deformable raceway, and belongs to the field of bearings.
Background
In the process of designing the high-speed light-load bearing, the raceway of the bearing is designed and corrected after the characteristics of a certain working condition are analyzed, and the raceway with specific requirements is processed in a targeted manner. However, the technology can only ensure that the raceway obtains a single size, and the adaptability of the bearing under the multi-working condition is poor.
Therefore, the existing bearing has the problem that the bearing cannot be suitable for multiple working conditions due to the single size of the raceway.
Disclosure of Invention
The invention aims to solve the problem that the conventional bearing cannot be suitable for multiple working conditions due to single raceway size, and further provides a bearing with a deformable raceway.
The technical scheme of the invention is as follows:
a bearing with a deformable raceway comprises a bearing inner ring 3, a plurality of first rolling bodies, a flexible outer ring, a fixed ring and a plurality of raceway deformation components, wherein the flexible outer ring is sleeved on the bearing inner ring, the flexible outer ring is in rolling connection with the bearing inner ring through the first rolling bodies, a plurality of raceway deformation units are processed on the inner side wall of the fixed ring, the raceway deformation units are sequentially connected, each raceway deformation unit comprises a fixed fulcrum, a transition section and a landslide, and the fixed fulcrum, the transition section and the landslide are sequentially connected; the retainer plate suit is on flexible outer lane, and multiunit raceway deformation assembly installs between retainer plate and flexible outer lane, and the change of raceway shape is realized in the same direction as, anticlockwise rotation of flexible outer lane making raceway deformation assembly extrusion flexible outer lane warp.
Further, the fixed pivot is protruded towards one side of the flexible outer ring.
Further, the transition section is concave to the inside wall of the retainer ring.
Further, the landslide is an arc slope, and the radian of the landslide is gradually reduced in an anticlockwise direction by taking the fixed fulcrum as a center.
Further, the number of the plurality of groups of raceway deformation components is 2-5.
Preferably, the number of race deforming assemblies is 3 sets.
Further, every group raceway deformation assembly all includes spring, second rolling element and promotes the piece, and the one end and the fixed pivot of spring are connected, promote the piece and are located the landslide, and the other end of spring is connected with promoting the piece, and the second rolling element is located the landslide, and is located one side that promotes the piece.
Compared with the prior art, the invention has the following effects:
1. the invention realizes the waveform change of the raceway according to the working condition characteristics of the bearing under the high-speed light load environment, thereby adjusting the loaded state of the rolling element of the bearing and improving the stress condition of the working surface. Can be applied to the mechanical field with the characteristics of high speed and light load.
2. According to the invention, the raceway deformation component is added in the structure of the bearing, the rotation angle and the torque of the flexible outer ring 2 are controlled through the raceway deformation component, the second rolling body and the prefabricated landslide of the fixed outer ring rotate relatively, and the flexible outer ring is extruded, so that the shape of the raceway of the flexible outer ring is changed.
3. The invention can adjust the shape of the raceway in real time according to the working condition in the using process of the bearing, and improves the adaptability of the bearing to the working condition.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
fig. 2 is a schematic view of the present invention in connection with a drive device.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1, and the bearing with the deformable raceway comprises a bearing inner ring 3, a plurality of first rolling elements 4, a flexible outer ring 2, a fixed ring 1 and a plurality of raceway deformation components, wherein the flexible outer ring 2 is sleeved on the bearing inner ring 3, the flexible outer ring 2 is in rolling connection with the bearing inner ring 3 through the plurality of first rolling elements 4, a plurality of raceway deformation units are processed on the inner side wall of the fixed ring 1 and are sequentially connected, each raceway deformation unit comprises a fixed fulcrum 1-1, a transition section 1-2 and a landslide 1-3, and the fixed fulcrum 1-1, the transition section 1-2 and the landslide 1-3 are sequentially connected; the fixed ring 1 is sleeved on the flexible outer ring 2, the plurality of groups of raceway deformation components are installed between the fixed ring 1 and the flexible outer ring 2, and the raceway deformation components extrude the flexible outer ring 2 to deform to realize the change of the shape of the raceway by clockwise and anticlockwise rotation of the flexible outer ring 2.
According to the working condition characteristics of the bearing, the embodiment realizes the waveform change of the raceway, thereby adjusting the loading state of the bearing rolling element and improving the stress condition of the working surface. Can be applied to the mechanical field with the characteristics of high speed and light load.
The second embodiment is as follows: referring to fig. 1, the present embodiment will be described, in which a fixed fulcrum 1-1 projects toward a flexible outer ring 2. So set up, be convenient for play connection and spacing effect. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: referring to fig. 1, the transition section 1-2 of the present embodiment is recessed toward the inner sidewall of the retainer ring 1. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: referring to fig. 1, the embodiment will be described, in which the landslide 1-3 is an arc-shaped slope, and the arc of the landslide 1-3 gradually decreases counterclockwise around the fixed fulcrum 1-1. The flexible outer ring is arranged in such a way, so that the flexible outer ring can be conveniently in a pre-tightening and loosening state when rotating. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The arc ramp of the embodiment is an arc ramp in which the pushing block pushes the second rolling element to move forward, and the arc needs to be tangent to the inner diameter cylindrical surface of the ferrule. The arc radius of the arc slope should be at least 2 times larger than the diameter of the second rolling element.
The starting point of the arc slope is tangent to the arc where the point is located, the slope of the arc slope is designed according to the predicted feeding amount, the flexible ferrule raceway is forced to generate corresponding deformation by pushing the arc slope to extrude the second rolling body, and the deformation degree is determined by the slope of the arc slope and the propelling stroke of the rolling body.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the number of the plural sets of raceway deforming members of the present embodiment is 2 to 5 sets. So set up, be convenient for satisfy the raceway and warp and reset. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1, and the number of race deforming units of the present embodiment is 3. So set up, be convenient for satisfy the raceway and warp and reset. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: referring to fig. 1, the embodiment is described, each set of raceway deforming components of the embodiment includes a spring 7, a second rolling element 5 and a pushing block 6, one end of the spring 7 is connected with a fixed pivot 1-1, the pushing block 6 is located in a landslide 1-3, the other end of the spring 7 is connected with the pushing block 6, and the second rolling element 5 is located in the landslide 1-3 and on one side of the pushing block 6. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The working principle of the invention is explained in connection with fig. 2:
the fixing ring of the invention needs to be fixed on the bearing seat or the host machine shell, and can not slide relatively when being fixed. The fixed pivot is arranged on the inner side of the fixed ring and is connected with the tail end of a spring with a spring structure, and the tail end of the spring is connected with a pushing block. A second rolling body is arranged on the same side of the pushing block, and the rolling body can freely move in the circumferential direction without being restricted. The spring, the pushing block and the second rolling body are regarded as a set of components (namely raceway deformation components), the number of the components is a plurality between the flexible outer ring and the fixed ring, and the number of the components is more than 2; the inner ring and the flexible outer ring are designed according to a conventional structural design method of the bearing, and a plurality of rolling bodies are designed between the two rings to serve as rotary supports of the bearing. The flexible outer ring structure protrudes out of the end faces of the inner ring and the fixed ring and is connected with a driving device, and the driving device drives the flexible outer ring structure to realize controllable rotation. The inner ring is connected with the driving shaft and used for transmitting the rotating speed and the torque.
When the bearing raceway needs to be deformed, the driving device drives the flexible ferrule to rotate anticlockwise, under the thrust action of the spring, the pushing block pushes the second moving body to roll along the landslide direction of the fixed ring, and due to the fact that the space is gradually reduced, the second moving body is extruded by the flexible outer ring and the fixed ferrule to deform, and then the shape change of the flexible outer ring raceway is achieved.
After the flexible outer ring raceway deforms, the first rolling body can be squeezed, and therefore the contact stress level between the rolling body and the raceway is increased.
When the driving device works clockwise, the second rolling body is extruded by the flexible outer ring and slides to the initial position along the built-in slope of the fixed ring, the pressure of the flexible outer ring is reduced, and the deformation of the raceway is restored to the original state.
The deformation control of the flexible ring raceway is carried out according to the comprehensive design selection of the thickness of the bearing flexible ring, the size of the first rolling body, the size of the second rolling body, the arc of the built-in landslide of the fixed ring and the like, and finally the control is carried out through the rotation formation and the rotation torque of the driving device.
The operation of the driving device can establish correlation between the speed sensor and the load sensor to form a control program with real-time feedback, thereby realizing the deformation control of the raceway.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A bearing with deformable raceways, comprising a bearing inner ring (3) and a plurality of first rolling elements (4), characterized in that: the rolling bearing further comprises a flexible outer ring (2), a fixed ring (1) and a plurality of groups of raceway deformation components, wherein the flexible outer ring (2) is sleeved on the bearing inner ring (3), the flexible outer ring (2) is in rolling connection with the bearing inner ring (3) through a plurality of first rolling bodies (4),
a plurality of raceway deformation units are processed on the inner side wall of the fixed ring (1), the plurality of raceway deformation units are connected in sequence, each raceway deformation unit comprises a fixed fulcrum (1-1), a transition section (1-2) and a landslide (1-3), and the fixed fulcrum (1-1), the transition section (1-2) and the landslide (1-3) are connected in sequence;
the fixed ring (1) is sleeved on the flexible outer ring (2), the plurality of groups of raceway deformation components are installed between the fixed ring (1) and the flexible outer ring (2), and the raceway deformation components extrude the flexible outer ring (2) to deform to realize the change of the shape of the raceway by clockwise and anticlockwise rotation of the flexible outer ring (2).
2. A deformable raceway bearing according to claim 1, wherein: the fixed pivot (1-1) is protruded towards one side of the flexible outer ring (2).
3. A deformable raceway bearing according to claim 2, wherein: the transition section (1-2) is concave to the inner side wall of the fixed ring (1).
4. A deformable raceway bearing according to claim 1 or 3, wherein: the landslide (1-3) is an arc slope, and the radian of the landslide (1-3) is gradually reduced in an anticlockwise direction by taking the fixed fulcrum (1-1) as a center.
5. A deformable raceway bearing according to claim 1, wherein: the number of the plurality of groups of raceway deformation assemblies is more than or equal to 2.
6. A deformable raceway bearing according to claim 5, wherein: the number of raceway deforming components is 3 groups.
7. A deformable raceway bearing according to claim 1 or 6, wherein: each group of raceway deformation assembly comprises a spring (7), a second rolling body (5) and a pushing block (6), one end of the spring (7) is connected with a fixed pivot (1-1), the pushing block (6) is located in a landslide (1-3), the other end of the spring (7) is connected with the pushing block (6), and the second rolling body (5) is located in the landslide (1-3) and located on one side of the pushing block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423644.8A CN114046315B (en) | 2021-11-26 | 2021-11-26 | Bearing with deformable roller path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423644.8A CN114046315B (en) | 2021-11-26 | 2021-11-26 | Bearing with deformable roller path |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114046315A true CN114046315A (en) | 2022-02-15 |
| CN114046315B CN114046315B (en) | 2024-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111423644.8A Active CN114046315B (en) | 2021-11-26 | 2021-11-26 | Bearing with deformable roller path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114046315B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1338123A (en) * | 1962-11-02 | 1963-09-20 | Rolls Royce | Rolling |
| JP2007009976A (en) * | 2005-06-29 | 2007-01-18 | Jtekt Corp | Rolling bearing device |
| JP2008138779A (en) * | 2006-12-01 | 2008-06-19 | Ntn Corp | Shaft supporting device and preload method for cylindrical roller bearing |
| JP2008275124A (en) * | 2007-05-07 | 2008-11-13 | Nsk Ltd | Creep prevention mechanism for bearing |
| WO2012033286A2 (en) * | 2010-09-10 | 2012-03-15 | Yoo Hwa-Yale | Elastic ring bearing |
| JP2013160247A (en) * | 2012-02-01 | 2013-08-19 | Jtekt Corp | Roller bearing with alignment function |
| CN104295600A (en) * | 2014-09-18 | 2015-01-21 | 浙江大学 | Elastic rolling bearing with wavy foil |
| EP2949952A1 (en) * | 2012-11-02 | 2015-12-02 | Yury Ivanovich Ermilov | Foil bearing assembly |
| CN108071668A (en) * | 2016-11-10 | 2018-05-25 | 扬州市环球花盆厂 | A kind of anti abrasive unilateral bearing |
| CN108757727A (en) * | 2018-06-15 | 2018-11-06 | 重庆交通大学 | Vibration damping drop rushes bearing |
| CN110966301A (en) * | 2018-09-28 | 2020-04-07 | 孟萍 | Novel high-speed rail power bearing |
| CN112377521A (en) * | 2020-11-16 | 2021-02-19 | 张宁 | Wear-resistant bearing |
-
2021
- 2021-11-26 CN CN202111423644.8A patent/CN114046315B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1338123A (en) * | 1962-11-02 | 1963-09-20 | Rolls Royce | Rolling |
| JP2007009976A (en) * | 2005-06-29 | 2007-01-18 | Jtekt Corp | Rolling bearing device |
| JP2008138779A (en) * | 2006-12-01 | 2008-06-19 | Ntn Corp | Shaft supporting device and preload method for cylindrical roller bearing |
| JP2008275124A (en) * | 2007-05-07 | 2008-11-13 | Nsk Ltd | Creep prevention mechanism for bearing |
| WO2012033286A2 (en) * | 2010-09-10 | 2012-03-15 | Yoo Hwa-Yale | Elastic ring bearing |
| JP2013160247A (en) * | 2012-02-01 | 2013-08-19 | Jtekt Corp | Roller bearing with alignment function |
| EP2949952A1 (en) * | 2012-11-02 | 2015-12-02 | Yury Ivanovich Ermilov | Foil bearing assembly |
| CN104295600A (en) * | 2014-09-18 | 2015-01-21 | 浙江大学 | Elastic rolling bearing with wavy foil |
| CN108071668A (en) * | 2016-11-10 | 2018-05-25 | 扬州市环球花盆厂 | A kind of anti abrasive unilateral bearing |
| CN108757727A (en) * | 2018-06-15 | 2018-11-06 | 重庆交通大学 | Vibration damping drop rushes bearing |
| CN110966301A (en) * | 2018-09-28 | 2020-04-07 | 孟萍 | Novel high-speed rail power bearing |
| CN112377521A (en) * | 2020-11-16 | 2021-02-19 | 张宁 | Wear-resistant bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114046315B (en) | 2024-01-23 |
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