CN201866097U - Micro flexible rolling bearing - Google Patents
Micro flexible rolling bearing Download PDFInfo
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- CN201866097U CN201866097U CN2010206407818U CN201020640781U CN201866097U CN 201866097 U CN201866097 U CN 201866097U CN 2010206407818 U CN2010206407818 U CN 2010206407818U CN 201020640781 U CN201020640781 U CN 201020640781U CN 201866097 U CN201866097 U CN 201866097U
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- raceway
- outer ring
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Abstract
一种微动柔性滚动轴承，其单列、双列或多列的内圈(2)、外圈(3)中，每列的内圈(2)和/或外圈(3)与滚动体(5)之间设置有滚道环(1)，该滚道环(1)的滚道面(1A)与滚动体(5)接触配对，滚道环(1)的非滚道面(1B)与内圈(2)或外圈(3)上的弧形槽(2A或3A)接触配对；内圈(2)或外圈(3)的弧形槽(2A或3A)的边缘嵌有挡环(4)；滚动体(5)、滚道环(1)及弧形槽(2A或3A)之间的间隙空间填充润滑酯。该种滚动轴承对复杂载荷条件的适应性强、传动平稳性与精度高、接触应力低、使用寿命长。
A fretting flexible rolling bearing, in the single-row, double-row or multi-row inner ring (2) and outer ring (3), the inner ring (2) and/or outer ring (3) of each row and the rolling body (5 ) is provided with a raceway ring (1), the raceway surface (1A) of the raceway ring (1) is in contact with the rolling element (5), and the non-raceway surface (1B) of the raceway ring (1) is in contact with The arc groove (2A or 3A) on the inner ring (2) or outer ring (3) is in contact with each other; the edge of the arc groove (2A or 3A) on the inner ring (2) or outer ring (3) is embedded with a retaining ring (4); the gap space between the rolling element (5), the raceway ring (1) and the arc groove (2A or 3A) is filled with lubricating grease. This kind of rolling bearing has strong adaptability to complex load conditions, high transmission stability and precision, low contact stress and long service life.
Description
Technical field
The utility model relates to the mechanical transmission bearing.
Background technique
Bearing is the core component of supporting rotating shaft and load, and from the micron order bearing of supporting MEMS transmission shaft, the meter level bearing to the huge hydroelectric power arbor of supporting is widely used in various military and civilian electromechanical equipments.The academic basis of bearing is: the military service middle (center) bearing bears rotation torque and the moment of flexure effect that rotating shaft or bearing transmit, and forms complicated stochastic and dynamic axial force and radial force effect at bearing inner race or outer ring raceway; And, merge lubricated wearing and tearing, reduction temperature rise and the noise result of alleviating by the contacting of roller and Internal and external cycle raceway, make every effort to transmit steadily, efficiently the stochastic and dynamic load of rotary component.
The development of world's bearing technology has been experienced from sliding into the change of rolling: sliding bearing, and area of contact is big, and transmission capacity is big, but friction area is big, and frictional loss is big, and transmission efficiency is lower, wearing and tearing very easily takes place under the insufficient lubrication situation lost efficacy with temperature rise, and the life-span is short.Rolling bearing has the inherent advantage on its structure and the working principle, and area of contact is little, and frictional loss is little, the transmission efficiency height; But, under the insufficient lubrication situation, also come in contact easily to peel off and lost efficacy with temperature rise because of contact stress is big; Improve the bearing capacity angle from increasing area of contact, rolling bearing develops to multiple row, cylinder, needle bearing direction; From realizing the axial carrying angle, rolling bearing develops to deep groove ball bearing, tapered roller bearing and axial thrust bearing direction.Along with bearing capacity and improvement in performance, rolling bearing extensively replaces sliding bearing.
The key factor that influences rolling bearing bearing capacity, transmission performance and life-span comprises: contact stress, sliding friction and lubricated.Contact stress generally adopts post class roller and improves roller and contacts pattern with raceway and use the multiple row roller and be minimized with the method and technology that increases point of contact quantity; It is inconsistent that sliding friction results from roller and raceway surface of contact, the Line of contact each point linear velocity, contacts the pattern design with raceway by roller and improve with making; Lubricated key effect is: reduce friction factor, avoid dry friction; Keep the rolling contact membranes, avoid direct contact damage; The noise in absorption bearing working chamber.
But the weakness that the existence of structure of existing rolling bearing own can't overcome: inside and outside circle and raceway one; Roller contacts with the direct rigidity of the raceway of inside and outside circle, and raceway can't be done the self adaption swing and/or the circumferentially changing of the relative positions with the variation of external force, the contact stress height, and the bearing operation stationarity is poor, noise is big, and is low to the adaptive capacity of complex load, and the life-span is short.
Therefore, under high-performance, highi degree of accuracy, long lifetime requirement and high speed, heavy duty and complicated dynamic loading environment, existing bearing structure still needs to improve.
The model utility content
The purpose of this utility model provides a kind of micro flexible rolling bearing, and this kind rolling bearing is strong to the adaptability of complex load condition, transmission stability and precision height, low, the long service life of contact stress.
The technological scheme that its goal of the invention that realizes the utility model adopts is: a kind of micro flexible rolling bearing, comprise single-row, biserial or inner ring, outer ring and the inner ring of multiple row and the rolling element between the outer ring, it is characterized in that: in the inner ring of described single-row, biserial or multiple row, the outer ring, be provided with raceway rings between the inner ring of every row and/or outer ring and the rolling element, the roller surface of this raceway rings contacts pairing with rolling element, the non-roller surface of raceway rings contacts pairing with curve bath on inner ring and/or the outer ring; The edge of the curve bath of inner ring or outer ring is embedded with baffle ring; Clearance space packing lubrication ester between rolling element, raceway rings and the curve bath.
Compared with prior art, the beneficial effects of the utility model are:
In existing bearing, increase raceway rings, replace the inner ring of existing bearing and/or the raceway on the outer ring and with the rolling element contact friction; The another side of raceway rings (non-roller surface) is the arc groove pairing on cambered surface and bearing inner race and/or the outer ring, and the two forms swing under lubricated environment and/or circumferential changing of the relative positions fine motion cooperates, and swing fine motion degree is controlled by back-up ring.Therefore, roller acts on the random bend on the roller surface and reverses dynamic load, can be by the self adaption swing and/or the circumferentially changing of the relative positions fine motion of the non-roller surface of raceway rings, and be delivered to inner ring and/or outer ring flexibly, form self adaption micro flexible power transmission mechanism, reduced impact, noise and the contact stress of roller surface and rolling element, improved the stationarity, running accuracy of bearing operation and, prolonged bearing life the adaptability of complicated random load.Be particularly useful for high-performance, highi degree of accuracy, require and the bearing of big load, strong randomness load Service Environment at a high speed.
Simultaneously, because bearing mainly by raceway rings and rolling element contact damage, makes the Internal and external cycle body can adopt cheaper made, reduced manufacture cost; Only need to replace raceway rings after the raceway rings wearing and tearing, need not to change whole inner ring or outer ring, reduced the O﹠M cost.
Below in conjunction with the drawings and specific embodiments the utility model is done a step explanation.
Description of drawings
Figure 1A be the utility model embodiment's one and rolling element be the cross-sectional view of spherical single-row micro flexible rolling bearing.
Figure 1B is the cross-sectional view of the utility model embodiment two rolling element for spherical single-row micro flexible rolling bearing.
Fig. 1 C is the cross-sectional view of the utility model embodiment three rolling element for spherical single-row micro flexible rolling bearing.
Fig. 2 A is the cross-sectional view of the utility model embodiment four rolling element for spherical biserial micro flexible rolling bearing.
Fig. 2 B is the cross-sectional view of the utility model embodiment five rolling element for spherical biserial micro flexible rolling bearing.
Fig. 2 C is the cross-sectional view of the utility model embodiment six rolling element for spherical biserial micro flexible rolling bearing.
Fig. 3 A is that the utility model embodiment seven rolling element is the cross-sectional view of cylindrical single-row micro flexible rolling bearing.
Fig. 3 B is that the utility model embodiment eight rolling element is the cross-sectional view of cylindrical single-row micro flexible rolling bearing.
Fig. 3 C is that the utility model embodiment nine rolling element is the cross-sectional view of cylindrical single-row micro flexible rolling bearing.
Fig. 4 A is that the utility model embodiment ten rolling element is the cross-sectional view of cylindrical biserial micro flexible rolling bearing.
Fig. 4 B is that the utility model embodiment 11 rolling element is the cross-sectional view of cylindrical biserial micro flexible rolling bearing.
Fig. 4 C is that the utility model embodiment 12 rolling element is the cross-sectional view of cylindrical biserial micro flexible rolling bearing.
Specific implementation method:
Embodiment one
Figure 1A illustrates, and a kind of embodiment of the present utility model is that a kind of micro flexible rolling bearing comprises the rolling element 5 between single-row inner ring 2, outer ring 3 and inner ring 2 and the outer ring 3.Be provided with raceway rings 1 between inner ring 2 and the rolling element 5, the roller surface 1A of this raceway rings 1 contacts pairing with rolling element 5, and the non-roller surface 1B of raceway rings 1 contacts pairing with the curve bath 2A on the inner ring 2; The edge of the curve bath 2A of inner ring 2 is embedded with baffle ring 4; Clearance space packing lubrication ester between rolling element 5, raceway rings 1 and the curve bath 2A.
The micro flexible rolling bearing that this is routine, its raceway rings 1 is single rolling ring, is arranged between inner ring 2 and the rolling element 5, its rolling element 5 is a spherical roller.
Embodiment two
Figure 1B illustrates, and a kind of micro flexible rolling bearing of this example comprises the rolling element 5 between single-row inner ring 2, outer ring 3 and inner ring 2 and the outer ring 3.Be provided with raceway rings 1 between outer ring 3 and the rolling element 5, the roller surface 1A of this raceway rings 1 contacts pairing with rolling element 5, and the non-roller surface 1B of raceway rings 1 contacts pairing with the curve bath 3A on the outer ring 3; The edge of the curve bath 3A of outer ring 3 is embedded with baffle ring 4; Clearance space packing lubrication ester between rolling element 5, raceway rings 1 and the curve bath 3A.These routine rolling element 5 spherical rollers.
Obviously, this example is that raceway rings 1 is arranged between outer ring 3 and the rolling element 5 with embodiment one difference.
Embodiment three
Fig. 1 C illustrates, and a kind of micro flexible rolling bearing of this example comprises the rolling element 5 between single-row inner ring 2, outer ring 3 and inner ring 2 and the outer ring 3.Be provided with raceway rings 1 between inner ring 2 and outer ring 3 and the rolling element 5, the roller surface 1A of raceway rings 1 contacts pairing with rolling element 5, and the non-roller surface 1B of two raceway rings 1 contacts pairing with inner ring 2 with curve bath 2A, 3A on the outer ring 3 respectively; The edge of curve bath 2A, the 3A of inner ring 2 and outer ring 3 all is embedded with baffle ring 4; Clearance space packing lubrication ester between rolling element 5, raceway rings 1 and curve bath 2A, the 3A.These routine rolling element 5 spherical rollers.
Obviously, this example is that raceway rings 1 is two, is separately positioned between inner ring 2 and the rolling element 5, between outer ring 3 and the rolling element 5 with embodiment one, two difference.
Embodiment four
Fig. 2 A illustrates, and a kind of micro flexible rolling bearing of this example comprises inner ring 2, outer ring 3 and the inner ring 2 of biserial and the rolling element 5 between the outer ring 3.Be provided with raceway rings 1 between the inner ring 2 of every row and the rolling element 5, the roller surface 1A of this raceway rings 1 contacts pairing with rolling element 5, and the curve bath 2A on the inner ring 2 of non-roller surface 1B and each row of the raceway rings 1 of each row contacts pairing; The edge of the curve bath 2A of the inner ring 2 of every row is embedded with baffle ring 4; Clearance space packing lubrication ester between rolling element 5, raceway rings 1 and the curve bath 2A.These routine rolling element 5 spherical rollers.
Obviously, this example and embodiment's one difference is, inner ring 2, outer ring 3 and rolling element 5 are two row, and corresponding raceway rings 1 also is two.
Embodiment five
Fig. 2 B illustrates, and a kind of micro flexible rolling bearing of this example comprises inner ring 2, outer ring 3 and the inner ring 2 of biserial and the rolling element 5 between the outer ring 3.Be provided with raceway rings 1 between the outer ring 3 of every row and the rolling element 5, the roller surface 1A of this raceway rings 1 contacts pairing with rolling element 5, and the curve bath 3A on the outer ring 3 of non-roller surface 1B and each row of the raceway rings 1 of each row contacts pairing; The edge of the curve bath 3A of the outer ring 3 of every row is embedded with baffle ring 4; Clearance space packing lubrication ester between rolling element 5, raceway rings 1 and the curve bath 3A.These routine rolling element 5 spherical rollers.
Obviously, this example and embodiment's two difference is, inner ring 2, outer ring 3 and rolling element 5 are two row, and corresponding raceway rings 1 also is two; And with embodiment four difference be that raceway rings 1 is arranged between outer ring 3 and the rolling element 5.
Embodiment six
Fig. 2 C illustrates, and a kind of micro flexible rolling bearing of this example comprises inner ring 2, outer ring 3 and the inner ring 2 of biserial and the rolling element 5 between the outer ring 3.Be provided with raceway rings 1 between the inner ring 2 of every row and outer ring 3 and the rolling element 5.In every row: the roller surface 1A of two raceway rings 1 contacts pairing with rolling element 5, the non-roller surface 1B of two raceway rings 1 respectively with inner ring 2 or outer ring 3 on curve bath 2A, 3A contact pairing; The edge of curve bath 2A, the 3A of inner ring 2 and outer ring 3 all is embedded with baffle ring 4; Clearance space packing lubrication ester between rolling element 5, raceway rings 1 and curve bath 2A, the 3A.These routine rolling element 5 spherical rollers.
Obviously, this example and embodiment's three difference is, inner ring 2, outer ring 3 and rolling element 5 are two row, and corresponding raceway rings 1 also is two pairs totally four; And be that two raceway rings 1 in every row are separately positioned between inner ring 2 and the rolling element 5, between outer ring 3 and the rolling element 5 with embodiment four, five difference.
Embodiment seven
Fig. 3 A illustrates, and this example and embodiment one are basic identical, and different only is rolling element 5 changes cylindrical roller into by spherical roller.
Embodiment eight
Fig. 3 B illustrates, and this example and embodiment two are basic identical, and different only is rolling element 5 changes cylindrical roller into by spherical roller.
Embodiment nine
Fig. 3 C illustrates, and this example and embodiment three are basic identical, and different only is rolling element 5 changes cylindrical roller into by spherical roller.
Embodiment ten
Fig. 4 A illustrates, and this example and embodiment four are basic identical, and different only is rolling element 5 changes cylindrical roller into by spherical roller.
Embodiment 11
Fig. 4 B illustrates, and this example and embodiment five are basic identical, and different only is rolling element 5 changes cylindrical roller into by spherical roller.
Embodiment 12
Fig. 4 C illustrates, and this example and embodiment six are basic identical, and different only is rolling element 5 changes cylindrical roller into by spherical roller.
Embodiment 13
A kind of micro flexible rolling bearing of this example comprises inner ring, outer ring and the inner ring of three row and the rolling element between the outer ring.Be provided with raceway rings between the inner ring of every row and outer ring and the rolling element.In every row: the roller surface of two raceway rings contacts pairing with rolling element, the non-roller surface of two raceway rings respectively with inner ring or outer ring on curve bath contact pairing; The edge of the curve bath of inner ring and outer ring all is embedded with baffle ring; Clearance space packing lubrication ester between rolling element, raceway rings and the curve bath.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206407818U CN201866097U (en) | 2010-12-03 | 2010-12-03 | Micro flexible rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206407818U CN201866097U (en) | 2010-12-03 | 2010-12-03 | Micro flexible rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866097U true CN201866097U (en) | 2011-06-15 |
Family
ID=44137253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206407818U Expired - Lifetime CN201866097U (en) | 2010-12-03 | 2010-12-03 | Micro flexible rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985955A (en) * | 2010-12-03 | 2011-03-16 | 西南交通大学 | Micro-motion flexible rolling bearing |
-
2010
- 2010-12-03 CN CN2010206407818U patent/CN201866097U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985955A (en) * | 2010-12-03 | 2011-03-16 | 西南交通大学 | Micro-motion flexible rolling bearing |
| CN101985955B (en) * | 2010-12-03 | 2014-12-10 | 西南交通大学 | Fretting Flexible Rolling Bearings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |