CN202646371U - Bearing with tapered holes in inner holes of cylindrical rollers - Google Patents
Bearing with tapered holes in inner holes of cylindrical rollers Download PDFInfo
- Publication number
- CN202646371U CN202646371U CN 201220256770 CN201220256770U CN202646371U CN 202646371 U CN202646371 U CN 202646371U CN 201220256770 CN201220256770 CN 201220256770 CN 201220256770 U CN201220256770 U CN 201220256770U CN 202646371 U CN202646371 U CN 202646371U
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- cylindrical roller
- bearing
- roller
- taper hole
- hole
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Abstract
A bearing with tapered holes in inner holes of cylindrical rollers comprises an outer ring (1) and an inner ring (2) and the cylindrical rollers (3). The inner ring is provided with two roller paths, flanges are arranged at two ends of each roller path, the cylindrical rollers are assembled in the roller paths with the flanges via retainers and are connected with the outer ring, two end surfaces of the inner hole of each cylindrical roller with the outer diameter D, the inner diameter d and the length L are in the shape of countersunk circular grooves, the diameter of each countersunk circular groove is smaller than or equal to D/2, d is smaller than D/2, the width of each countersunk circular groove is controlled to range from 2mm to 3mm, parts of two ends of the inner hole of each cylindrical roller are in the shape of the tapered holes and extend from the corresponding end surfaces in the shape of the countersunk circular grooves, the length of the tapered hole at each end of the inner hole of each cylindrical roller ranges from one-fifth of the L to one-seventh of the L of the cylindrical roller, the taper of the taper hole at each end of the inner hole of each cylindrical roller is controlled to be 3 degrees, one end of each connecting column (4) is riveted with an end of a small washer (5) of the corresponding retainer, and the other end of each connecting column is externally threaded and is connected with an inner threaded hole of a large washer (6) of the corresponding retainer. The tapered holes are beneficial to enable lubricating oil to flow into the inner holes of the cylindrical rollers, so that the cylindrical rollers and the connecting columns can be effectively lubricated and cooled.
Description
Technical field
The utility model belongs to technical field of bearings, and especially a kind of cylindrical roller endoporus is with the bearing of taper hole.
Background technique
Hollow cylindrical roller bearing generally includes outer ring, inner ring, cylindrical roller, retainer, and compare straight roller bearing and can hold more cylindrical roller, thus can adapt to better vibratory impulse load, and rigidity is large, is widely used in machine industry.
But because its cylindrical roller endoporus of hollow cylindrical roller bearing need to be worn connecting column and connect with retainer, in use normal appearance is lubricated not freely, is excessively rubbed or fever phenomenon, causes this bearing early failue.
Summary of the invention
For addressing the above problem, the utility model has designed a kind of cylindrical roller endoporus with the bearing of taper hole, cylindrical roller endoporus two ends in this bearing are the taper hole shape, be connected with heavy annular groove with taper hole, taper hole and heavy annular groove can store lubricant oil, cylindrical roller, connecting column and retainer can effectively be lubricated and cool off, reduce friction and fever phenomenon.
For achieving the above object, the utility model adopts following technological scheme:
A kind of cylindrical roller endoporus is with the bearing of taper hole, this bearing contains the outer ring, inner ring, cylindrical roller, inner ring has two raceways, the two ends of described raceway have rib, cylindrical roller is assemblied in the described raceway with rib and with the outer ring by retainer and connects, wherein external diameter is D mm, internal diameter is d mm, length is that its endoporus both ends of the surface of cylindrical roller of L mm are heavy annular groove shape, diameter≤the D/2mm of described heavy annular groove, described d＜D/2 mm, the width of described heavy annular groove is controlled at 2 ~ 3mm, the endoporus that links to each other with described heavy annular groove is the taper hole shape, the length of every section described taper hole is controlled at L/5～L/7 mm, the tapering of every section described taper hole is controlled at 3 °, an end of connecting column and the riveted joint of retainer small washer end, and the other end of connecting column is the outside thread shape and connects with the interior threaded hole of retainer large washer.
The external diameter both ends of the surface of cylindrical roller have chamfering.
Owing to adopt as mentioned above technological scheme, the utility model produces following beneficial effect:
1, the cylindrical roller endoporus helps lubricant oil to flow in the cylindrical roller endoporus with taper hole, makes cylindrical roller and connecting column obtain effectively lubricating and cooling.
2, the tapering of cylindrical roller taper hole is controlled at 3 °, has greatly reduced the area of contact of cylindrical roller and connecting column, has avoided greatly having improved the working life of cylindrical roller and connecting column because too much contact produces surface abrasion and fever phenomenon.
3, the both ends of the surface of cylindrical roller have heavy annular groove, and heavy annular groove is convenient to store lubricant oil, can alleviate to a certain extent simultaneously the weight of cylindrical roller, make the rotation of bearing more flexible, light.
Description of drawings
Fig. 1 is structural representation sketch of the present utility model.
Fig. 2 is the partial cutaway schematic of cylindrical roller among Fig. 1.
Among the above-mentioned figure: the 1-outer ring; The 2-inner ring; The 3-cylindrical roller; The 4-connecting column; 5-retainer small washer; 6-retainer large washer.
Embodiment
In conjunction with Fig. 1, the utility model be a kind of cylindrical roller endoporus with the bearing of taper hole, this bearing contains outer ring 1, inner ring 2, cylindrical roller 3.Inner ring 2 has two raceways, and the two ends of described raceway have rib, and cylindrical roller 3 is assemblied in the described raceway with rib and with outer ring 1 by retainer and connects.
In conjunction with Fig. 2, external diameter is that D mm, internal diameter are that d mm, length are that cylindrical roller 3 its endoporus both ends of the surface of L mm are heavy annular groove shape, diameter≤the D/2mm of described heavy annular groove, described d＜D/2 mm, the width of described heavy annular groove is controlled at 2 ~ 3mm, described heavy annular groove can make the lubricant oil of injection be stored in this annular groove, and retainer is lubricated.
The endoporus that links to each other with described heavy annular groove is the taper hole shape, the length of every section described taper hole is controlled at L/5～L/7 mm, the tapering of every section described taper hole is controlled at 3 °, maximum is no more than 5 °, tapering is too little can not to play storage lubricant oil, tapering causes too greatly the relatively described taper hole of connecting column 4 to produce vibrations, described taper hole set up one to be to be convenient to connecting column 4 install, the 2nd, can store lubricant oil equally in the described taper hole.
One end of connecting column 4 and the riveted joint of retainer small washer 5 ends, the other end of connecting column 4 is the outside thread shape and connects with the interior threaded hole of retainer large washer 6.Connection by connecting column 4 can tightly be fitted with the both ends of the surface of cylindrical roller 3 retainer small washer end face and retainer large washer end face, such mounting structure is compacter, the cylindrical roller number of comparing its installation with the bearing of same size is more, and bearing capacity is larger.
The external diameter both ends of the surface of above-mentioned cylindrical roller have chamfering.
What Fig. 1 represented is Biserial cylindrical roller bearing, applicable equally to single row roller bearing.
The taper hole structure that the utility model is designed, not only be conducive to the lubricated of cylindrical roller endoporus and connecting column, more reduced the area of contact of cylindrical roller endoporus and connecting column, wearing and tearing and the fever phenomenon having avoided too much contact surface and produced, greatly improved the working life of cylindrical roller and connecting column, satisfied that machine industry is little to this class bearing requirement friction, heating less, lubricated good demand.
Claims (2)
1. a cylindrical roller endoporus is with the bearing of taper hole, this bearing contains outer ring (1), inner ring (2), cylindrical roller (3), inner ring (2) has two raceways, the two ends of described raceway have rib, cylindrical roller (3) is assemblied in by retainer in the described raceway with rib and with outer ring (1) and connects, it is characterized in that: external diameter is D mm, internal diameter is d mm, length is that its endoporus both ends of the surface of cylindrical roller (3) of L mm are heavy annular groove shape, diameter≤the D/2mm of described heavy annular groove, described d＜D/2 mm, the width of described heavy annular groove is controlled at 2 ~ 3mm, the endoporus that links to each other with described heavy annular groove is the taper hole shape, the length of every section described taper hole is controlled at L/5～L/7 mm, the tapering of every section described taper hole is controlled at 3 °, one end of connecting column (4) and the riveted joint of retainer small washer (5) end, the other end of connecting column (4) is the outside thread shape and connects with the interior threaded hole of retainer large washer (6).
2. according to the bearing of the described cylindrical roller endoporus of claim 1 with taper hole, it is characterized in that: the external diameter of cylindrical roller (3) both ends of the surface have chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256770 CN202646371U (en) | 2012-06-02 | 2012-06-02 | Bearing with tapered holes in inner holes of cylindrical rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256770 CN202646371U (en) | 2012-06-02 | 2012-06-02 | Bearing with tapered holes in inner holes of cylindrical rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646371U true CN202646371U (en) | 2013-01-02 |
Family
ID=47415484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220256770 Expired - Fee Related CN202646371U (en) | 2012-06-02 | 2012-06-02 | Bearing with tapered holes in inner holes of cylindrical rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050907A (en) * | 2016-08-11 | 2016-10-26 | 瓦房店冶金轴承集团有限公司 | Hollow roller bearing |
| CN112536577A (en) * | 2020-12-07 | 2021-03-23 | 如皋市力星滚子科技有限公司 | Hollow roller and forming process thereof |
-
2012
- 2012-06-02 CN CN 201220256770 patent/CN202646371U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050907A (en) * | 2016-08-11 | 2016-10-26 | 瓦房店冶金轴承集团有限公司 | Hollow roller bearing |
| CN112536577A (en) * | 2020-12-07 | 2021-03-23 | 如皋市力星滚子科技有限公司 | Hollow roller and forming process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170427 Address after: Thirty Xin'an Avenue, 237161 Hanzhoung Road, Anhui Town, Lu'an City Jin'an District No. 3 Patentee after: Anhui Hui Man Power Machinery Manufacturing Co. Ltd. Address before: 471039 Henan province Luoyang Fenghua high tech Development Zone, Road No. 6 Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200602 |