CN113007214A - Combined high-speed precision bearing - Google Patents
Combined high-speed precision bearing Download PDFInfo
- Publication number
- CN113007214A CN113007214A CN202110257709.XA CN202110257709A CN113007214A CN 113007214 A CN113007214 A CN 113007214A CN 202110257709 A CN202110257709 A CN 202110257709A CN 113007214 A CN113007214 A CN 113007214A
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- CN
- China
- Prior art keywords
- bearing
- angular contact
- contact ball
- ring
- outer ring
- Prior art date
- 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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Classifications
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- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/49—Bearings with both balls and rollers
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- 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
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- 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
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- 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
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a combined high-speed precision bearing which comprises an outer flange and a mandrel, wherein a bearing cover is connected to the end part of the outer flange, a spline for being connected with a mechanical main shaft is formed on the mandrel, the mandrel is rotationally connected with the outer flange through a cylindrical roller bearing without an outer ring, a four-point angular contact ball bearing is fixedly connected to the mandrel, the outer ring of the four-point angular contact ball bearing is in clearance fit with the inner wall of the outer flange, one end, close to the bearing cover, of the outer ring of the four-point angular contact ball bearing is riveted with the bearing cover, an oil nozzle is arranged between the outer ring of the four-point angular contact ball bearing and the cylindrical roller bearing without the outer ring, and an oil outlet of the oil nozzle is arranged. The integral rigidity can be effectively improved, the rotating speed is faster, the mounting with a mechanical main shaft is facilitated, and the using effect of the integral structure is improved.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a combined high-speed precision bearing.
Background
With the development and progress of the society, the use requirement of enterprises on equipment is higher and higher, the existing mechanical main shaft is mainly connected with the bearing to realize the rotary connection on the equipment, but the installation of the existing mechanical main shaft is limited by the rigidity and the rotating speed of the bearing, the use effect is poor, and meanwhile, the installation of the mechanical main shaft is also difficult, and the improvement of the use effect of the mechanical main shaft is not facilitated.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the combined high-speed precision bearing, which effectively improves the integral rigidity, has higher rotating speed, is convenient to be installed with a mechanical main shaft and improves the using effect of the integral structure.
In order to achieve the purpose, the invention provides a combined high-speed precision bearing which comprises an outer flange and a mandrel, wherein a bearing cover is connected to the end portion of the outer flange, a spline used for being connected with a mechanical spindle is formed on the mandrel, the mandrel is rotationally connected with the outer flange through a cylindrical roller bearing without an outer ring, a four-point angular contact ball bearing is fixedly connected to the mandrel, the outer ring of the four-point angular contact ball bearing is in clearance fit with the inner wall of the outer flange, one end, close to the bearing cover, of the outer ring of the four-point angular contact ball bearing is riveted with the bearing cover, an oil nozzle is arranged between the outer ring of the four-point angular contact ball bearing and the cylindrical roller bearing without the outer ring, and an oil outlet of the oil nozzle.
The beneficial effect who so sets up is: the outer-ring-free cylindrical roller bearing bears radial force, a gap exists between the outer diameter of the four-point angular contact ball bearing and the shell, the gap is preferably set to be about 0.5mm, the four-point angular contact ball bearing does not bear the radial force and only bears the axial force, so that the outer-ring-free cylindrical roller bearing only bears the radial force, the four-point angular contact ball bearing only bears the axial force, high-speed operation of unit type bearings is facilitated, and meanwhile, the outer-ring-free cylindrical roller bearing is in a linear contact mode, and the integral rigidity is effectively improved; the oil nozzle is arranged, so that the cylinder and the four-point bearing can be lubricated at the same time, redundant heat can be taken away, and the use stability of the whole structure is improved; the inner hole of the mandrel is further provided with a spline, so that the mandrel is conveniently connected with the outside; meanwhile, the end face of the four-point angular contact ball bearing is fixedly connected with the bearing cover, the end face of the four-point angular contact ball bearing can be provided with a circular groove in the connection mode, the bearing cover is provided with a pin, and the pin is inserted into the circular groove, so that the circumferential rotation of the four-point angular contact ball bearing can be effectively prevented.
According to the further arrangement of the four-point angular contact ball bearing, a positioning flange is formed at the position, corresponding to the outer ring of the four-point angular contact ball bearing, of the mandrel, the radian of the positioning flange is matched with the radian of the outer ring of the four-point angular contact ball bearing, and the positioning flange is connected with the outer ring of the four-point angular contact ball bearing through a riveting process.
The beneficial effect who so sets up is: the assembly is more convenient, the assembly stability is ensured, the assembly efficiency is improved, and meanwhile, the structure is simple and the combination is tight.
According to the invention, a spacer ring is arranged between the inner ring of the four-point angular contact ball bearing and the inner ring of the cylindrical roller bearing without the outer ring.
The beneficial effect who so sets up is: the spacer ring is arranged, the stability of the whole structure can be effectively guaranteed, the mutual interference of the inner ring of the four-point angular contact ball bearing and the inner ring of the cylindrical roller bearing without the outer ring is avoided, meanwhile, the structure is simple, the implementation is facilitated, and the using effect is effectively improved.
As a further arrangement of the invention, the outer flange is provided with positioning snap rings corresponding to two sides of the roller of the cylindrical roller bearing without the outer ring.
The beneficial effect who so sets up is: the roller limiting device has the advantages that the limiting of the position of the roller of the cylindrical roller bearing without the outer ring can be effectively realized, meanwhile, the structure is simple, the realization is facilitated, and the stability of the whole structure is improved.
According to the further arrangement of the invention, the outer flange is provided with a limiting snap ring corresponding to the position of the inner ring of the cylindrical roller bearing without the outer ring, and the limiting snap ring and the spacer ring are combined to limit the position of the inner ring of the cylindrical roller bearing without the outer ring.
The beneficial effect who so sets up is: the position of the inner ring of the cylindrical roller bearing without the outer ring can be effectively limited, and meanwhile, the structure is simple, the realization is facilitated, and the stability of the whole structure is improved.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.
Detailed Description
The embodiment of the combined high-speed precision bearing of the invention is shown in figure 1: including outer flange 1 and dabber 2, 1 end connection of outer flange has bearing cap 3, be formed with on the dabber 2 and be used for the spline 21 of being connected with mechanical main shaft, dabber 2 rotates with outer flange 1 through no outer lane cylindrical roller bearing 4 to be connected, the dabber 2 is gone up still fixedly connected with four point angular contact ball bearing 5, four point angular contact ball bearing 5 outer lane and 1 inner wall clearance fit of outer flange, the one end and the bearing cap 3 riveting setting that the bearing cap 3 is close to in four point angular contact ball bearing 5 outer lane, be provided with fuel sprayer 6 between 5 outer lanes of four point angular contact ball bearing and the no outer lane cylindrical roller bearing 4 roller, the 6 oil-out of fuel sprayer sets up towards 5 rollers of angular contact ball bearing and no outer lane four point cylindrical roller bearing 4. The beneficial effect who so sets up is: the outer-ring-free cylindrical roller bearing 4 bears radial force, a gap exists between the outer diameter of the four-point angular contact ball bearing 5 and the shell, the gap is preferably set to be about 0.5mm, the four-point angular contact ball bearing 5 does not bear the radial force and only bears the axial force, so that the outer-ring-free cylindrical roller bearing 4 only bears the radial force, the four-point angular contact ball bearing 5 only bears the axial force, high-speed operation of unit bearings is facilitated, meanwhile, the outer-ring-free cylindrical roller bearing 4 is in a line contact mode, and the integral rigidity is effectively improved; the oil nozzle 6 is arranged, so that the cylinder and the four-point bearing can be lubricated at the same time, redundant heat can be taken away, and the use stability of the whole structure is improved; the inner hole of the mandrel 2 is further provided with a spline 21, so that the connection with the outside is convenient and fast; meanwhile, the end surface of the four-point angular contact ball bearing 5 is fixedly connected with the bearing cover 3, the end surface of the four-point angular contact ball bearing 5 can be provided with a circular groove in the connection mode, the bearing cover 3 is provided with a pin, and the pin is inserted into the circular groove, so that the circumferential rotation of the four-point angular contact ball bearing 5 can be effectively prevented.
In a further configuration of the present embodiment, the mandrel 2 is provided with a positioning flange 22 corresponding to the position of the outer ring of the four-point angular contact ball bearing 5, the positioning flange 22 is adapted to the radian of the outer ring of the four-point angular contact ball bearing 5, and the positioning flange 22 is connected to the outer ring of the four-point angular contact ball bearing 5 by a riveting process. The beneficial effect who so sets up is: the assembly is more convenient, the assembly stability is ensured, the assembly efficiency is improved, and meanwhile, the structure is simple and the combination is tight.
As a further arrangement of the present embodiment, a spacer ring 7 is provided between the inner ring of the four-point angular contact ball bearing 5 and the inner ring of the outer-ring-less cylindrical roller bearing 4. The beneficial effect who so sets up is: set up spacer ring 7, can effectively guarantee overall structure's stability, avoid four point angular contact ball bearing 5 inner circles and no outer lane cylindrical roller bearing 4 inner circles mutual interference, simple structure does benefit to the realization simultaneously, effectively improves the result of use.
As a further arrangement of the present embodiment, the outer flange 1 is provided with positioning snap rings 8 corresponding to both sides of the roller of the outer-ring-free cylindrical roller bearing 4. The beneficial effect who so sets up is: the position of the roller of the outer-ring-free cylindrical roller bearing 4 can be effectively limited, and the structure is simple, so that the realization is facilitated, and the stability of the whole structure is improved.
As a further configuration of the present embodiment, the outer flange 1 is provided with a limit snap ring 9 corresponding to the position of the inner ring of the cylindrical roller bearing without outer ring 4, and the limit snap ring 9 and the spacer ring 7 are combined to form a limit for the position of the inner ring of the cylindrical roller bearing without outer ring 4. The beneficial effect who so sets up is: the position of the inner ring of the cylindrical roller bearing without the outer ring can be effectively limited, and meanwhile, the structure is simple, the realization is facilitated, and the stability of the whole structure is improved.
The above example is only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a modular high-speed precision bearing, includes outer flange and dabber, outer flange end connection has bearing cap, its characterized in that: the improved oil nozzle is characterized in that a spline used for being connected with a mechanical spindle is formed on the mandrel, the mandrel is rotationally connected with an outer flange through a cylindrical roller bearing without an outer ring, a four-point angular contact ball bearing is fixedly connected to the mandrel, the outer ring of the four-point angular contact ball bearing is in clearance fit with the inner wall of the outer flange, one end, close to the bearing cover, of the outer ring of the four-point angular contact ball bearing is riveted with the bearing cover, an oil nozzle is arranged between the outer ring of the four-point angular contact ball bearing and the cylindrical roller bearing without the outer ring, and the oil outlet of the oil nozzle faces towards the.
2. The combined high-speed precision bearing according to claim 1, characterized in that: the mandrel is provided with a positioning flange corresponding to the outer ring of the four-point angular contact ball bearing, the positioning flange is matched with the radian of the outer ring of the four-point angular contact ball bearing, and the positioning flange is connected with the outer ring of the four-point angular contact ball bearing by adopting a riveting process.
3. The combined high-speed precision bearing according to claim 1 or 2, characterized in that: and a space ring is arranged between the inner ring of the four-point angular contact ball bearing and the inner ring of the cylindrical roller bearing without the outer ring.
4. The combined high-speed precision bearing according to claim 3, wherein: and the outer flange is provided with positioning snap rings corresponding to two sides of the roller of the cylindrical roller bearing without the outer ring.
5. The combined high-speed precision bearing according to claim 4, wherein: the outer flange is provided with a limiting snap ring corresponding to the position of the inner ring of the cylindrical roller bearing without the outer ring, and the limiting snap ring and the spacer ring are combined to limit the position of the inner ring of the cylindrical roller bearing without the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110257709.XA CN113007214B (en) | 2021-03-09 | 2021-03-09 | Combined high-speed precision bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110257709.XA CN113007214B (en) | 2021-03-09 | 2021-03-09 | Combined high-speed precision bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113007214A true CN113007214A (en) | 2021-06-22 |
| CN113007214B CN113007214B (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110257709.XA Active CN113007214B (en) | 2021-03-09 | 2021-03-09 | Combined high-speed precision bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113007214B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2703158Y (en) * | 2004-06-07 | 2005-06-01 | 郭满生 | Large combined bearing |
| FR2911650A1 (en) * | 2007-01-24 | 2008-07-25 | Skf Ab | Rolling bearing for e.g. scanner, has outer ring including main body comprising damping elements and cavity filled with additional material, where elements include metallic material with specific vibration damping coefficient |
| DE102011003705A1 (en) * | 2011-02-07 | 2012-08-09 | Schaeffler Technologies Gmbh & Co. Kg | Bearing arrangement for bevel gear shaft, has angular contact ball bearing including outer ring that is inserted into outer sleeve with outer tracks for balls, where outer sleeve comprises annular space for retaining outer ring |
| CN203519334U (en) * | 2013-10-31 | 2014-04-02 | 中国船舶重工集团公司第七�三研究所 | Switching mechanical structure |
| CN203526580U (en) * | 2013-10-22 | 2014-04-09 | 湖北毅兴机床有限公司 | Guide sleeve sealing device for shaft moving type computer numerical control machine tool |
| CN203641292U (en) * | 2013-12-27 | 2014-06-11 | 杭州雷迪克汽车部件制造有限公司 | Integrated hub unit of deep groove ball bearing, needle bearing and transmission gear structure |
| CN205207248U (en) * | 2015-12-14 | 2016-05-04 | 沈阳鼓风机集团石化泵有限公司 | Self -lubricating forced air cooling bearing parts |
| CN206513726U (en) * | 2017-02-24 | 2017-09-22 | 徐州徐工传动科技有限公司 | The output shaft flange apparatus of convenient dismounting |
| CN207421137U (en) * | 2017-10-31 | 2018-05-29 | 成都市排水有限责任公司 | A kind of bearing arrangement of sludge agitation spiral |
| CN209875728U (en) * | 2019-01-16 | 2019-12-31 | 江苏德纳精工轴承有限公司 | Combined bearing |
| CN211778592U (en) * | 2019-09-29 | 2020-10-27 | 宁波力劲机械有限公司 | Bearing combination structure of molten rubber transmission shaft of electric injection molding machine |
-
2021
- 2021-03-09 CN CN202110257709.XA patent/CN113007214B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2703158Y (en) * | 2004-06-07 | 2005-06-01 | 郭满生 | Large combined bearing |
| FR2911650A1 (en) * | 2007-01-24 | 2008-07-25 | Skf Ab | Rolling bearing for e.g. scanner, has outer ring including main body comprising damping elements and cavity filled with additional material, where elements include metallic material with specific vibration damping coefficient |
| DE102011003705A1 (en) * | 2011-02-07 | 2012-08-09 | Schaeffler Technologies Gmbh & Co. Kg | Bearing arrangement for bevel gear shaft, has angular contact ball bearing including outer ring that is inserted into outer sleeve with outer tracks for balls, where outer sleeve comprises annular space for retaining outer ring |
| CN203526580U (en) * | 2013-10-22 | 2014-04-09 | 湖北毅兴机床有限公司 | Guide sleeve sealing device for shaft moving type computer numerical control machine tool |
| CN203519334U (en) * | 2013-10-31 | 2014-04-02 | 中国船舶重工集团公司第七�三研究所 | Switching mechanical structure |
| CN203641292U (en) * | 2013-12-27 | 2014-06-11 | 杭州雷迪克汽车部件制造有限公司 | Integrated hub unit of deep groove ball bearing, needle bearing and transmission gear structure |
| CN205207248U (en) * | 2015-12-14 | 2016-05-04 | 沈阳鼓风机集团石化泵有限公司 | Self -lubricating forced air cooling bearing parts |
| CN206513726U (en) * | 2017-02-24 | 2017-09-22 | 徐州徐工传动科技有限公司 | The output shaft flange apparatus of convenient dismounting |
| CN207421137U (en) * | 2017-10-31 | 2018-05-29 | 成都市排水有限责任公司 | A kind of bearing arrangement of sludge agitation spiral |
| CN209875728U (en) * | 2019-01-16 | 2019-12-31 | 江苏德纳精工轴承有限公司 | Combined bearing |
| CN211778592U (en) * | 2019-09-29 | 2020-10-27 | 宁波力劲机械有限公司 | Bearing combination structure of molten rubber transmission shaft of electric injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113007214B (en) | 2022-04-01 |
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