CN102996629B - Roller bearing - Google Patents

Roller bearing Download PDF

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Publication number
CN102996629B
CN102996629B CN201210537122.5A CN201210537122A CN102996629B CN 102996629 B CN102996629 B CN 102996629B CN 201210537122 A CN201210537122 A CN 201210537122A CN 102996629 B CN102996629 B CN 102996629B
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China
Prior art keywords
inner ring
central tube
roller
loose rib
bearing
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CN201210537122.5A
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Chinese (zh)
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CN102996629A (en
Inventor
赵荣多
陈庆熙
王冰
陈太平
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TCB BEARING MANUFACTURING Co Ltd
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TCB BEARING MANUFACTURING Co Ltd
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Publication of CN102996629A publication Critical patent/CN102996629A/en
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Abstract

The present invention relates to a kind of roller bearing.It comprises an outer ring, an inner ring and several cylindrical rollers, the whole internal surface of described outer ring is as raceway, the whole outer surface of described inner ring is as raceway, the two ends of described inner ring are all provided with planar section and are positioned at the projection of described planar section central authorities, described projection is the central tube of the center hole around described inner ring, and on each central tube, cover has the loose rib of recline described planar section and an axially locating respectively.The invention provides a kind of roller bearing of two sides band loose rib, loose rib is arranged on outside bearing natural width, bearing roller is made to have extreme length in institute's limit for width degree, make bearing in limit size, have most high bearing capacity, loose rib can stop roller in whole circumference range, and can limit inside and outside circle and roller separation.<!--1-->

Description

Roller bearing
Technical field
The present invention relates to a kind of roller bearing, the full-complement cylinder roller bearing of particularly a kind of improvement.
Background technique
The roller diameter of roller bearing, quantity and roller length determine its bearing capacity, be generally and obtain large bearing capacity, design bearing is become full-complement cylinder roller structure, under same width, kind of bearings is equipped with the roller of maximum quantity, is commonly used for high bearing capacity, comparatively slow-speed of revolution bearing application configuration under spacing space.No matter completely fill roller or be with retainer structure in prior art, its roller two ends (or one end) are provided with step rib, stop roller axial displacement, can bear a small amount of thrust load when needing.
Existing inner ring (or outer ring) rib 100 is arranged at (as shown in Figure 1) within bearing natural width, and roller length is chosen and is restricted, and bearing capacity decreases, and cannot be competent at some and only bear radial load and the limited application of axial usage space.
Summary of the invention
For the deficiency that prior art exists, the invention provides the roller bearing that a kind of roller length makes full use of bearing natural width.
For achieving the above object, the present invention is by the following technical solutions:
A kind of roller bearing, comprise an outer ring, an inner ring and several cylindrical rollers, it is characterized in that: the whole internal surface of described outer ring is as raceway, the whole outer surface of described inner ring is as raceway, the two ends of described inner ring are all provided with planar section and are positioned at the projection of described planar section central authorities, described projection is the central tube of the center hole around described inner ring, and on each central tube, cover has the loose rib of recline described planar section and an axially locating respectively.
Technique scheme can also be further improved by following technical measures.
The external diameter of described loose rib is greater than cylindrical roller circumscribed circle diameter, and the outer of described loose rib is provided with a breach, and indentations bottom is greater than cylindrical roller inscribed circle diameter to the distance of bearing centre.
Described breach is arc.
The root of described central tube is provided with annular groove, and described loose rib has elasticity and the annular groove of the central tube of the part or all of edge insertion correspondence of its center hole.
The center hole of described loose rib is the flat hole of symmetrical curve that four sections of convex shaped arc connect, and the length in the flat hole of this symmetrical curve is greater than the external diameter of corresponding central tube, and the width in the flat hole of this symmetrical curve is less than the external diameter of corresponding central tube and is greater than the groover rot diameter of annular groove.
Abovementioned technology can select a use, also use capable of being combined.
The invention provides a kind of full-complement cylinder roller bearing of two sides band loose rib, loose rib is arranged on outside bearing natural width, makes bearing roller have extreme length in institute's limit for width degree, makes bearing in limit size, have most high bearing capacity.Loose rib can stop roller in whole circumference range, and can limit inside and outside circle and roller separation.Through loose rib cylindrical place arc notch, roller and raceway state can be checked in time, and can through this breach to bearing working surface lubrication oil supply when needing.The center portion of loose rib is designed to the flat hole of symmetrical curve of four sections of convex circular sliding slopes and loose rib material selection spring steel plate, by the shape and size designing in elastic properties of materials and the flat hole of central part curve, it can be installed on inner ring central tube smoothly when making the flat hole of curve long dimensional directions two symmetry plane axile displacement be greater than the central tube diameter of inner ring end to its width direction two top arc peak spacing gently.The present invention is specially adapted to the limited and occasion of substantial radial load in axial application space.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing roller bearing;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of loose rib;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 is the structural representation of inner ring;
Fig. 7 is the partial enlarged drawing of Fig. 6.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
See Fig. 2-6, a kind of roller bearing, comprise outer ring 1, inner ring 2 and several cylindrical rollers 3, the whole internal surface of described outer ring 1 is as raceway, the whole outer surface of described inner ring 2 is as raceway, the two ends of described inner ring 2 are all provided with planar section 22 and are positioned at the projection of planar section 22 central authorities, and described projection is the central tube 21 of the center hole around described inner ring 2, and on each central tube 21, cover has the loose rib 4 of recline described planar section 22 and an axially locating respectively.
The external diameter of described loose rib 4 is greater than cylindrical roller 3 circumscribed circle diameter (i.e. outer ring internal diameter), and the outer of described loose rib 4 is provided with a breach 45, is greater than cylindrical roller 3 inscribe loop diameter (i.e. inner ring raceway diameter) to the distance of bearing centre bottom this breach 45.
Described breach 45 is arc.
As shown in Figure 6,7, the root of described central tube 21 is provided with annular groove 211, and described loose rib 4 has elasticity and the annular groove 211 of the central tube 21 of the part edge of its center hole insertion correspondence.Annular groove 211 madial wall is substantially concordant with planar section 22, annular groove 211 outer side wall be tilt in enlarging shape so that the insertion of loose rib 4 and make loose rib 4 have the trend of abutment plane part 22.
The center hole 40 of described loose rib 4 is the flat hole of symmetrical curve that four sections of convex shaped arc 41,42,43,44 connect, the length L1 in the flat hole of this symmetrical curve is greater than the external diameter L3 of corresponding central tube 21, and the width L2 in the flat hole of this symmetrical curve is less than the external diameter of corresponding central tube 21 and is greater than the groover rot diameter L4 of annular groove 211.
Below be only be illustrated the specific embodiment in the present invention, every equivalent transformation of making according to the design concept in the present invention or modification, all should think and fall into protection scope of the present invention.

Claims (3)

1. a roller bearing, comprise an outer ring, one inner ring and several cylindrical rollers, it is characterized in that: the whole internal surface of described outer ring is as raceway, the whole outer surface of described inner ring is as raceway, the two ends of described inner ring are all provided with planar section and are positioned at the projection of described planar section central authorities, described projection is the central tube of the center hole around described inner ring, on each central tube, cover has the loose rib of recline described planar section and an axially locating respectively, the external diameter of described loose rib is greater than cylindrical roller circumscribed circle diameter, the outer of described loose rib is provided with a breach, this indentations bottom is greater than cylindrical roller inscribe loop diameter to the distance of bearing centre, the root of described central tube is provided with annular groove, described loose rib has elasticity and the annular groove of the central tube of the part edge of its center hole insertion correspondence.
2. roller bearing according to claim 1, is characterized in that: described breach is arc.
3. roller bearing according to claim 1, it is characterized in that: the center hole of described loose rib is the flat hole of symmetrical curve that four sections of convex shaped arc connect, the length in the flat hole of this symmetrical curve is greater than the external diameter of corresponding central tube, and the width in the flat hole of this symmetrical curve is less than the external diameter of corresponding central tube and is greater than the groover rot diameter of annular groove.
CN201210537122.5A 2012-12-12 2012-12-12 Roller bearing Active CN102996629B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210537122.5A CN102996629B (en) 2012-12-12 2012-12-12 Roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210537122.5A CN102996629B (en) 2012-12-12 2012-12-12 Roller bearing

Publications (2)

Publication Number Publication Date
CN102996629A CN102996629A (en) 2013-03-27
CN102996629B true CN102996629B (en) 2015-11-04

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CN201210537122.5A Active CN102996629B (en) 2012-12-12 2012-12-12 Roller bearing

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CN (1) CN102996629B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1053479A (en) * 1990-01-19 1991-07-31 努弗彼格诺工业机械及铸造有限公司 The manufacture method of compact roller bearing
CN1095799A (en) * 1992-12-18 1994-11-30 尤沃彼基奥尼工业机械股份公司 A kind of slim modified model roller bearing with sliding sealing
CN2310893Y (en) * 1997-11-17 1999-03-17 周德禄 Roller bearing
CN201232706Y (en) * 2008-04-28 2009-05-06 江苏希西维轴承有限公司 Loose rib cam follower needle roller bearing
CN201347962Y (en) * 2008-12-26 2009-11-18 大连全鑫轧机轴承制造有限公司 Roller bearing
CN101608663A (en) * 2008-06-19 2009-12-23 施托布利法韦日公司 Be used for the bearing of puller system of loom and the puller system that comprises this bearing
CN201610895U (en) * 2010-04-01 2010-10-20 中山市盈科轴承制造有限公司 Cam follower needle roller bearing
CN203009574U (en) * 2012-12-12 2013-06-19 中山市盈科轴承制造有限公司 Cylindrical roller bearing
CN103671503A (en) * 2012-09-20 2014-03-26 昆山尚达智机械有限公司 Novel bearing

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1053479A (en) * 1990-01-19 1991-07-31 努弗彼格诺工业机械及铸造有限公司 The manufacture method of compact roller bearing
CN1095799A (en) * 1992-12-18 1994-11-30 尤沃彼基奥尼工业机械股份公司 A kind of slim modified model roller bearing with sliding sealing
CN2310893Y (en) * 1997-11-17 1999-03-17 周德禄 Roller bearing
CN201232706Y (en) * 2008-04-28 2009-05-06 江苏希西维轴承有限公司 Loose rib cam follower needle roller bearing
CN101608663A (en) * 2008-06-19 2009-12-23 施托布利法韦日公司 Be used for the bearing of puller system of loom and the puller system that comprises this bearing
CN201347962Y (en) * 2008-12-26 2009-11-18 大连全鑫轧机轴承制造有限公司 Roller bearing
CN201610895U (en) * 2010-04-01 2010-10-20 中山市盈科轴承制造有限公司 Cam follower needle roller bearing
CN103671503A (en) * 2012-09-20 2014-03-26 昆山尚达智机械有限公司 Novel bearing
CN203009574U (en) * 2012-12-12 2013-06-19 中山市盈科轴承制造有限公司 Cylindrical roller bearing

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