CN114046315B - Bearing with deformable roller path - Google Patents
Bearing with deformable roller path Download PDFInfo
- Publication number
- CN114046315B CN114046315B CN202111423644.8A CN202111423644A CN114046315B CN 114046315 B CN114046315 B CN 114046315B CN 202111423644 A CN202111423644 A CN 202111423644A CN 114046315 B CN114046315 B CN 114046315B
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- China
- Prior art keywords
- flexible outer
- outer ring
- ring
- bearing
- fixed
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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 35
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 230000007704 transition Effects 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000007423 decrease Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012938 design process Methods 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
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
Landscapes
- 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 size of the roller path. 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 rollaway deformation units are processed on the inner side wall of the fixed ring (1), each rollaway 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 rollaway nest deformation assemblies are arranged between the fixed ring (1) and the flexible outer ring (2), and the clockwise rotation and anticlockwise rotation of the flexible outer ring (2) enable the rollaway nest deformation assemblies to squeeze the flexible outer ring (2) to deform so as to change the rollaway nest shape. 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 design process of the high-speed light-load bearing, the raceway of the bearing is designed and corrected after analysis aiming at a certain working condition characteristic, 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 has poor adaptability to the bearing under multiple working conditions.
Therefore, the existing bearing has the problem that the existing bearing cannot be suitable for multiple working conditions due to the fact that the size of the rollaway nest is single.
Disclosure of Invention
The invention aims to solve the problem that the existing bearing cannot be suitable for multiple working conditions due to single size of a roller path, and further provides a bearing with a deformable roller path.
The technical scheme of the invention is as follows:
the bearing with the deformable rollway comprises a bearing inner ring 3, a plurality of first rolling bodies, a flexible outer ring, a fixed ring and a plurality of groups of rollway deformation assemblies, 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 plurality of first rolling bodies, a plurality of rollway deformation units are processed on the inner side wall of the fixed ring and are sequentially connected, each rollway 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 fixed ring is sleeved on the flexible outer ring, the plurality of groups of rollaway nest deformation assemblies are arranged between the fixed ring and the flexible outer ring, and the flexible outer ring rotates clockwise and anticlockwise so that the rollaway nest deformation assemblies squeeze the flexible outer ring to deform to change the rollaway nest shape.
Further, the fixed fulcrum is protruded toward the flexible outer ring side.
Further, the transition section is recessed toward the inner sidewall of the retainer ring.
Further, the landslide is an arc slope, and the radian of the landslide is gradually reduced anticlockwise by taking the fixed supporting point as the center.
Further, the number of the plurality of sets of raceway deforming assemblies is 2-5.
Preferably, the number of raceway deforming assemblies is 3.
Further, each group of rollaway nest deformation components comprises a spring, a second rolling body and a pushing block, one end of the spring is connected with the fixed fulcrum, the pushing block is located in the landslide, the other end of the spring is connected with the pushing block, and the second rolling body is located in the landslide and located on one side of the pushing block.
Compared with the prior art, the invention has the following effects:
1. the invention realizes the waveform change of the roller path according to the working condition characteristics of the bearing under the high-speed light-load environment, thereby adjusting the loaded state of the rolling body of the bearing and improving the design scheme of the stress condition of the working surface. Can be applied to the mechanical field with the characteristics of high speed and light load.
2. The raceway deformation assembly is added in the structure of the bearing, the raceway deformation assembly is used for controlling the rotation angle and moment of the flexible outer ring 2, the second rolling body and the prefabricated landslide of the fixed outer ring are rotated relatively, and the flexible outer ring is extruded, so that the raceway shape of the flexible outer ring is changed.
3. The invention can adjust the shape of the roller path according to the working condition in real time in the use 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 when connected to a driving device.
Detailed Description
The first embodiment is as follows: referring to fig. 1, a deformable raceway bearing of the present embodiment includes 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 assemblies, 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 an inner side wall of the fixed ring 1, the plurality of raceway deformation units are sequentially connected, each raceway deformation unit includes a fixed fulcrum 1-1, a transition section 1-2, 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, a plurality of groups of rollaway nest deformation assemblies are arranged between the fixed ring 1 and the flexible outer ring 2, and the rollaway nest deformation assemblies are enabled to extrude the flexible outer ring 2 to deform by rotating the flexible outer ring 2 clockwise and anticlockwise so as to change the rollaway nest shape.
According to the bearing working condition characteristics, the wave form of the raceway is changed, so that the bearing rolling body loading state is adjusted, and the design scheme of the working surface stress condition is improved. Can be applied to the mechanical field with the characteristics of high speed and light load.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1, in which a fixed fulcrum 1-1 protrudes toward a flexible outer ring 2. So set up, be convenient for play the effect of connection and spacing. Other compositions and connection relationships are the same as those of the first embodiment.
And a third specific embodiment: the present embodiment is described with reference to fig. 1, in which the transition sections 1-2 are recessed toward the inner side wall of the retainer ring 1. Other compositions and connection relationships are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: in the present embodiment, the landslide 1-3 is an arc slope, and the arc of the landslide 1-3 is gradually decreased counterclockwise around the fixed fulcrum 1-1 as a center, as described with reference to fig. 1. The flexible outer ring is arranged in such a way that the flexible outer ring is convenient to be in a pre-tightening and loosening state when rotating. Other compositions and connection relationships are the same as those of the first, second or third embodiments.
The arc slope in the embodiment refers to an arc slope 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 radius of the arc slope should be at least more than 2 times the diameter of the second rolling element.
The starting point of the arc slope is tangential to the arc where the starting point is located, the gradient of the arc slope is designed according to the expected 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 gradient of the arc slope and the pushing travel of the rolling body.
Fifth embodiment: the number of the plural sets of raceway deforming assemblies of this embodiment is 2 to 5 sets, which will be described with reference to fig. 1. So set up, be convenient for satisfy raceway deformation and reset. Other compositions and connection relationships are the same as those of the first, second, third or fourth embodiments.
Specific embodiment six: the number of raceway deforming assemblies of the present embodiment is 3 groups, which will be described with reference to fig. 1. So set up, be convenient for satisfy raceway deformation and reset. Other compositions and connection relationships are the same as those of the first, second, third, fourth or fifth embodiments.
Seventh embodiment: in the present embodiment, referring to fig. 1, each set of track deformation assemblies includes a spring 7, a second rolling element 5, and a pushing block 6, one end of the spring 7 is connected to the fixed fulcrum 1-1, the pushing block 6 is located in the landslide 1-3, the other end of the spring 7 is connected to the pushing block 6, and the second rolling element 5 is located in the landslide 1-3 and is located at one side of the pushing block 6. Other compositions and connection relationships are the same as those of the first, second, third, fourth, fifth or sixth embodiments.
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 main machine shell where the fixing ring is positioned, and the fixing ring can not slide relatively. The inner side of the fixed ring is provided with a fixed pivot which is connected with the tail end of the spring structure spring and connected with the pushing block. The second rolling bodies are arranged on the same side of the pushing block, and the rolling bodies can freely move in the circumferential direction without restriction. The spring, the pushing block and the second rolling body are regarded as a set of components (referred to as rollaway nest deformation components), the components are arranged between the flexible outer ring and the fixed ring, the number of the components is a plurality of, 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 surfaces of the inner ring and the fixed ring and is connected with the 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 to transmit rotation speed and torque.
When the bearing roller path needs to be deformed, the driving device drives the flexible ring to rotate anticlockwise, under the action of the thrust of the spring, the pushing block pushes the second moving body to roll along the landslide direction of the fixed ring, and as the space is gradually reduced, the second rolling body can squeeze the flexible outer ring to deform due to the extrusion of the flexible outer ring and the fixed ring, and further the change of the shape of the flexible outer ring roller path is realized.
After the flexible outer ring rollaway nest is deformed, the first rolling body is extruded, so that the contact stress level between the rolling body and the rollaway nest 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 rollaway nest is restored to the original state.
The deformation of the flexible ring raceway is controlled by comprehensively designing and selecting according to the thickness of the flexible ring of the bearing, the size of the first rolling body, the size of the second rolling body, the circular arc of the built-in landslide of the fixed ring and the like, and finally controlling through the rotation formation and the rotation moment of the driving device.
The operation of the driving device can be related with the speed and load sensors to form a control program with real-time feedback, so as to realize the deformation control of the roller path.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A deformable raceway bearing comprising a bearing inner ring (3) and a plurality of first rolling elements (4), characterized in that: the novel rolling bearing also comprises a flexible outer ring (2), a fixed ring (1) and a plurality of groups of rollaway nest 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),
the inner side wall of the fixed ring (1) is provided with a plurality of rollaway nest deformation units which are sequentially connected, each rollaway nest 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), a plurality of groups of rollaway nest deformation assemblies are arranged between the fixed ring (1) and the flexible outer ring (2), and the rollaway nest deformation assemblies are enabled to squeeze the flexible outer ring (2) to deform by clockwise rotation and anticlockwise rotation of the flexible outer ring (2) so as to change the shape of the rollaway nest;
the landslide (1-3) is an arc slope, and the radian of the landslide (1-3) gradually decreases anticlockwise by taking the fixed fulcrum (1-1) as the center;
each group of rollaway nest deformation components comprises a spring (7), a second rolling body (5) and a pushing block (6), one end of the spring (7) is connected with the fixed fulcrum (1-1), the pushing block (6) is located in the 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).
2. A deformable raceway bearing according to claim 1, in which: the fixed fulcrum (1-1) protrudes towards one side of the flexible outer ring (2).
3. A deformable raceway bearing according to claim 2, in which: the transition section (1-2) is concave towards the inner side wall of the fixed ring (1).
4. A deformable raceway bearing according to claim 1, in which: the number of the plurality of groups of rollaway nest deformation components is more than or equal to 2 groups.
5. A deformable raceway bearing according to claim 1, in which: the number of raceway deforming assemblies is 3.
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 CN114046315A (en) | 2022-02-15 |
| CN114046315B true CN114046315B (en) | 2024-01-23 |
Family
ID=80211379
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 |
|---|---|
| CN114046315A (en) | 2022-02-15 |
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