CN101793290B - Combined bearing of radial roller and axially thrust conical roller - Google Patents
Combined bearing of radial roller and axially thrust conical roller Download PDFInfo
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- CN101793290B CN101793290B CN201010158281A CN201010158281A CN101793290B CN 101793290 B CN101793290 B CN 101793290B CN 201010158281 A CN201010158281 A CN 201010158281A CN 201010158281 A CN201010158281 A CN 201010158281A CN 101793290 B CN101793290 B CN 101793290B
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- tapered
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- bearing
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Abstract
The invention relates to a combined bearing of radial roller and axially thrust conical roller, comprising a static ring, an upper moveable ring and a lower moveable ring; the static ring is installed between the upper moveable ring and the lower moveable ring; a cylindrical roller is installed between the surface of the inner diameter of the static ring and the radial raceway surface of the lower moveable ring; a conical raceway surface I is installed on the circumference of the lower end face of the upper moveable ring; the lower moveable ring is provided with a step; a conical raceway surface II is installed on the circumference on the plane of the step; and a conical roller is installed in the axial raceway formed by the upper end face of the conical raceway surface I and the static ring and the lower end face of the conical raceway surface II and the static ring. The invention adopts special structure to realize the integrally combined axial cylinder/radial thrust conical combined bearing, and has the characteristics of united bearing, high rigidity, high precision and high ultimate rotation speed; thus, the combined bearing can be widely applied to fields in need of high precision and operation at a high speed.
Description
Technical field
The invention belongs to the combination bearing technical field, specifically a kind of radial roller and end thrust tapered roller combination bearing.
Background technique
At present; Bearing mainly is made up of inner ring, outer ring, rolling element and retainer, and it is simple in structure, and usability is single; Yet on some equipment, not only need its running accuracy; Also will rely on its reach to, radial load, also need carry turning torque sometimes, this moment, single bearing can't use.
The application area of combination bearing is more and more wider gradually; Its usability is also in continuous improve; But at present the highi degree of accuracy that generally adopts of home and abroad axially-radial combination bearing adopts the cylindrical roller combination more; Radially adopt one group of cylindrical roller combination, axial carrying adopts the combination of bidirectional propulsion cylindrical roller.This structure can be born certain axial, radial load; But on the high speed performance because the influence of cylindrical roller centrifugal force in operation process; Can produce certain slip; This slip will have a strong impact on its running accuracy, be difficult to guarantee stable even load-carrying properties, thereby influence the overall performance of bearing.
Summary of the invention
The deficiency that the object of the invention is intended to solve the problems of the technologies described above provides a kind of radial roller and end thrust tapered roller combination bearing, long service life not only, but also have the characteristics of high rigidity, highi degree of accuracy and high limit rotating speed.
The present invention is for solving the problems of the technologies described above; The technological scheme that is adopted is: a kind of radial roller and end thrust tapered roller combination bearing, and be provided with Jing Quan, go up moving-coil and following moving-coil, last moving-coil is integrative-structure with following moving-coil through connection part; Jing Quan is arranged between moving-coil and the following moving-coil; The inside diameter surface of Jing Quan and following moving-coil radially be provided with cylindrical roller between the roller surface, the described moving-coil of going up, its one week of lower end surface is provided with tapered raceway face I; Described moving-coil down; It has a step, on the plane of its step, has been provided with tapered raceway face II a week, in the axial raceway that the lower end surface of the upper-end surface of tapered raceway face I and Jing Quan and tapered raceway face II and Jing Quan forms, is provided with tapered roller.
On tapered roller, also be provided with retainer.
Described retainer is processed by brass or aluminum alloy.
The highi degree of accuracy that generally adopt the home and abroad axially-radial combination bearing adopts the cylindrical roller combination more, radially adopts one group of cylindrical roller combination, axial carrying adopts the combination of bidirectional propulsion cylindrical roller.This structure can bear certain axially, radial load, but on the high speed performance because the influence of roller centrifugal force in operation process can produce certain slip, thereby influence the overall performance of bearing.And a kind of radial roller of the present invention and end thrust tapered roller combination bearing; Because thrust cone roller rolling bus and raceway bus all intersect on the shaft axis of bearing certain a bit; Therefore, rolling surface can form pure rolling, limit speed and be higher than cylindrical roller thrust bearing far away, thereby and reduced slip because of rolling surface forms pure rolling; When bearing is worked under fast state roller contact with raceway more stable, the working life of having improved bearing.
The invention has the beneficial effects as follows:
1, the present invention adopts unique texture; And the end thrust roller designs become tapered roller; The end thrust raceway is designed to the tapered raceway face; Thereby realized the axial cylindrical-radial thrust circular cone combination bearing of entire combination, had the advantages that to unite carrying, high rigidity, highi degree of accuracy and high limit rotating speed, the end face run-out of this combination bearing and circular runout can reach the precision of um level.Limit speed is enhanced about more than once than same specification radial-axial cylindrical roller combination bearing.The field that therefore can be widely used in the demand highi degree of accuracy, run up.
2, the present invention structurally since on the rolling bus of thrust cone roller and the shaft axis that the raceway bus all intersects at bearing certain a bit; Therefore; Rolling surface can form pure rolling, limit speed and be higher than cylindrical roller thrust bearing far away; And guaranteed that product has reduced sliding friction in heavy duty work, improved the working life of bearing.
3, owing to its premium properties, this product can be widely used in precision rotating platform and high-precision applications occasions such as other precision type instrument, machine spindle, also can be applicable to axially-radially all receive can improve the time between failures of equipment on the equipment of big load.
4, the present invention is in processing and manufacture process, and the logarithmic curve form is all adopted in contacting between circular cone raceway and roller, has guaranteed the maximum contact face of combination bearing when bearing capacity, thereby has improved the bearing capacity of product.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a structural representation of going up moving-coil among the present invention.
Fig. 3 is the structural representation of following moving-coil among the present invention.
Mark among the figure: 1, Jing Quan, 2, go up moving-coil, 3, moving-coil down, 4, tapered roller, 5, retainer, 6, cylindrical roller, 7, tapered raceway face I, 8, tapered raceway face II, 9, roller surface radially, 10, step.
Embodiment
Like Fig. 1, Fig. 2 and shown in Figure 3, the present invention, a kind of radial roller and end thrust tapered roller combination bearing, embodiment is following:
A kind of radial roller and end thrust tapered roller combination bearing; Be provided with quiet circle 1, go up moving-coil 2 and following moving-coil 3; Last moving-coil 2 and following moving-coil 3 are integrative-structure through connection part, and quiet circle 1 is arranged between moving-coil 2 and the following moving-coil 3, between the radially roller surface 9 of the inside diameter surface of quiet circle 1 and following moving-coil 3, are provided with cylindrical roller 6; The described moving-coil 2 of going up; Its one week of lower end surface is provided with tapered raceway face I 7, described moving-coil 3 down, and it has a step 10; On the plane of its step 10, be provided with tapered raceway face II 8 week, in the axial raceway of the upper-end surface of tapered raceway face I 7 and quiet circle 1 and tapered raceway face II 8 and the lower end surface formation of quiet circle 1, be provided with tapered roller 4.
On tapered roller 4, also be provided with retainer 5.
The present invention, described quiet circle 1, its upper and lower end face and internal diameter are roller surface, bear that roller passes over axially, radial load, the mounting hole of mask some on the circumference, during work and support be fixed together.
The present invention; With respect to quiet circle 1, this combination bearing also has the moving-coil structure, and described moving-coil is made up of with following moving-coil 3 last moving-coil 2; Integrity (for example: be connected) when last moving-coil 2 links together the assembling of assurance combination bearing with following moving-coil 3 through bolt, screw etc.; Moving-coil mainly is connected with the work rotary component, described moving-coil 3 down, and it has a step 10; On the plane of its step 10, be provided with tapered raceway face II 8 week, on the external diameter surface of following moving-coil, be provided with a roller surface 9 radially along step 10 tops; The described moving-coil 2 of going up, its one week of lower end surface is provided with tapered raceway face I 7, and last moving-coil 2 has identical some mounting holes, can make things convenient for equipment swivel gear and bearing to be connected.
The present invention; Tapered raceway face I 7 constitutes axial raceway with the upper-end surface of quiet circle 1, and tapered raceway face II 8 constitutes axial raceway with the lower end surface of quiet circle 1, axially is being provided with tapered roller 4 and retainer 5 in the raceway; Described tapered raceway face I 7 is the logarithmic curve form with tapered raceway face II 8; The tapered roller 4 that cooperates with the tapered raceway face, its bus is similarly the logarithmic curve structure, has guaranteed the maximum contact bearing capacity of itself and roller surface.
Described retainer 5 can guide the tapered roller circumference evenly to distribute and stable revolution, and retainer has two kinds of mounting types, and one of which, roller centre are with holes, and retainer and roller directly are fixed together through bearing pin, by the roller bearing retainer.Two, retainer is band roller pocket hole, after roller is put into retainer, directly by the roller bearing retainer.Different according to occasion and requirement, its retainer material can be brass, aluminum alloy or steel part etc.
The present invention is provided with cylindrical roller 6 in the radially raceway that the inside diameter surface of the radially roller surface 9 of following moving-coil 3 and quiet circle 1 forms, it mainly bears the radial load of combination.Cylindrical roller can be that full dress is arranged set of rollers, also can in the middle of roller, install the nylon or the brass spacing block of two sides band radian additional.
This product is mainly used in precision rotating platform and high-precision applications occasions such as other precision type instrument, machine spindle; Therefore the precision of product can reach between P2～P4; In processing and manufacture process; The logarithmic curve form is adopted in contacting between circular cone raceway and roller, has guaranteed the maximum contact face of combination bearing when bearing capacity, thereby has improved the bearing capacity of product.
Claims (3)
1. radial roller and end thrust tapered roller combination bearing; Be provided with Jing Quan (1), go up moving-coil (2) and following moving-coil (3); Last moving-coil (2) and following moving-coil (3) are integrative-structure through connection part, and Jing Quan (1) is arranged between moving-coil (2) and the following moving-coil (3), between the radially roller surface (9) of the inside diameter surface of Jing Quan (1) and following moving-coil (3), are provided with cylindrical roller (6); It is characterized in that: the described moving-coil (2) of going up; Its one week of lower end surface is provided with tapered raceway face I (7), described moving-coil (3) down, and it has a step (10); On the plane of its step (10), be provided with tapered raceway face II (8) week; In the axial raceway that the lower end surface of the upper-end surface of tapered raceway face I (7) and Jing Quan (1) and tapered raceway face II (8) and Jing Quan (1) forms, be provided with tapered roller (4), the rolling bus of tapered roller and raceway bus all intersect on the shaft axis of bearing certain a bit, and described tapered raceway face I (7) and tapered raceway face II (8) are the logarithmic curve form; The tapered roller (4) that cooperates with the tapered raceway face, its bus is similarly the logarithmic curve structure.
2. a kind of radial roller according to claim 1 and end thrust tapered roller combination bearing is characterized in that: on tapered roller (4), also be provided with retainer (5).
3. a kind of radial roller according to claim 2 and end thrust tapered roller combination bearing is characterized in that: described retainer (5) is processed by brass or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010158281A CN101793290B (en) | 2010-03-12 | 2010-03-12 | Combined bearing of radial roller and axially thrust conical roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010158281A CN101793290B (en) | 2010-03-12 | 2010-03-12 | Combined bearing of radial roller and axially thrust conical roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793290A CN101793290A (en) | 2010-08-04 |
| CN101793290B true CN101793290B (en) | 2012-10-03 |
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ID=42586153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010158281A Expired - Fee Related CN101793290B (en) | 2010-03-12 | 2010-03-12 | Combined bearing of radial roller and axially thrust conical roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101793290B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011000769A1 (en) | 2011-02-16 | 2012-08-16 | Rothe Erde Gmbh | Axial radial roller bearings, in particular for the storage of rotor blades on a wind turbine |
| CN102494016A (en) * | 2011-12-13 | 2012-06-13 | 天津市天重江天重工有限公司 | Structure improvement for thrust bearing of cylindrical roller |
| DE102014215066A1 (en) * | 2014-07-31 | 2016-02-04 | Aktiebolaget Skf | Rolling bearing cage or rolling bearing cage segment and method for producing a rolling bearing cage or a rolling bearing cage segment |
| DE102017104121A1 (en) | 2017-02-28 | 2018-08-30 | Schaeffler Technologies AG & Co. KG | Rotary table bearing arrangement |
| DE102018218275A1 (en) * | 2018-10-25 | 2020-04-30 | Thyssenkrupp Ag | Rolling bearing arrangement and wind turbine |
| CN115045908B (en) * | 2022-04-15 | 2024-01-30 | 河南科技大学 | High-precision low-friction turntable bearing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934723Y (en) * | 2006-06-12 | 2007-08-15 | 洛阳轴研科技股份有限公司 | Cone roller bearing |
| DE102007019482A1 (en) * | 2007-04-25 | 2008-11-06 | Schaeffler Kg | Multi-row slewing bearings, in particular axial-radial bearings for main bearing of the rotor shaft of a wind turbine |
| CN201314333Y (en) * | 2008-12-18 | 2009-09-23 | 洛阳鸿元轴承科技有限公司 | Combination bearing of cylindrical roller and double-direction thrust roller |
| CN101649862B (en) * | 2009-09-21 | 2011-05-18 | 洛阳世必爱特种轴承有限公司 | Three-row roller turntable bearing for heavy-duty machinery |
| CN201747774U (en) * | 2010-03-12 | 2011-02-16 | 洛阳世必爱特种轴承有限公司 | Combined bearing of radial roller and axial thrust conical roller |
-
2010
- 2010-03-12 CN CN201010158281A patent/CN101793290B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101793290A (en) | 2010-08-04 |
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