CN104154122A - Retainer of cylindrical roller bearing - Google Patents

Retainer of cylindrical roller bearing Download PDF

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Publication number
CN104154122A
CN104154122A CN201410388944.0A CN201410388944A CN104154122A CN 104154122 A CN104154122 A CN 104154122A CN 201410388944 A CN201410388944 A CN 201410388944A CN 104154122 A CN104154122 A CN 104154122A
Authority
CN
China
Prior art keywords
retainer
ring
confined planes
cylindrical roller
groove
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.)
Granted
Application number
CN201410388944.0A
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Chinese (zh)
Other versions
CN104154122B (en
Inventor
吴浩
张祥峰
杨婷婷
刘彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Tianma Bearing Group Co Ltd
Original Assignee
ZHEJIANG TIANMA BEARING CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG TIANMA BEARING CO Ltd filed Critical ZHEJIANG TIANMA BEARING CO Ltd
Priority to CN201410388944.0A priority Critical patent/CN104154122B/en
Publication of CN104154122A publication Critical patent/CN104154122A/en
Application granted granted Critical
Publication of CN104154122B publication Critical patent/CN104154122B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a retainer of a cylindrical roller bearing. The retainer is ring-shaped as a whole; a plurality of pockets for accommodating cylindrical rollers are uniformly formed in the retainer; each pocket is rectangular as a whole; two wall surfaces of each pocket, which are matched with the corresponding cylindrical roller, are plane surfaces parallel to each other; an inner ring wall and an outer ring wall are formed on the retainer respectively and located on the inner circumference and the outer circumference of the pockets; the inner ring wall is flushed with the end surfaces of the pockets; the outer ring wall is higher than the end surfaces of the pockets; concave ring grooves are formed in the two end surfaces of the retainer and located inside the outer ring wall; a groove with a triangular end surface is formed in one concave ring groove in a position between every two adjacent pockets; second limiting surfaces are formed at two ends on the side, close to the corresponding groove, of each pocket; first limiting surfaces are formed at two ends on the side, opposite to the corresponding second limiting surface, of each pocket. The two walls of each pocket, which are matched with the corresponding cylindrical roller, are plane surfaces parallel to each other, and the rollers are in line contact with the working plane of the retainer to achieve favorable heat dissipation and uniform lubrication, reduce friction and ensure low vibration and silence.

Description

A kind of retainer of roller bearing
Technical field
The invention belongs to bearing structure field, be specifically related to a kind of cylindrical roller combination bearing that can bear larger radial and axial joint load, be mainly used in the engineering machinery such as speed reducer.
Background technique
Bearing is that one is applied on rotating mechanism, is used for supporting, and reduces friction and bears the parts of load.This product is mainly for engineering machinery such as speed reducers and designs, and owing to can bearing larger radial load and thrust load, mounting or dismounting are simple, and bearing capacity is very strong, thereby is widely used in the engineering machinery such as speed reducer.Current domestic thrust sector retainer generally adopts contact surface spheric structure, and referring to Fig. 5, Fig. 6, the retainer of this structure exists following shortcoming:
1, because contact surface is disc, therefore retainer is larger to the envelope surface of roller when bearing working, contact morely, cause that friction is large, rotating speed is low, be easy to wearing and tearing;
2, surface accuracy requirement is high, is difficult to processing;
3, retainer crossbeam end face does not have annular groove, and roller mounting or dismounting inconvenience and lubricant oil circulation are not smooth.
Summary of the invention
Technical problem to be solved by this invention is to overcome existing deficiency in prior art, provide a kind of simple for structure, versatility good, it is little to rub, the retainer of the roller bearing that lubricated.
For realizing the present invention's object, be achieved by the following technical solutions: a kind of retainer of roller bearing, described retainer entirety is ring, on retainer, evenly form multiple pocket holes that hold cylindrical roller, described pocket hole entirety is rectangular, and two walls that pocket hole coordinates with cylindrical roller are the plane being parallel to each other; The internal and external circumferential that is positioned at pocket hole on described retainer forms respectively internal ring wall and external annulus, and internal ring wall is concordant with pocket hole end surface, and external annulus is higher than pocket hole end surface; Described retainer both ends of the surface are positioned at external annulus with formation concave ring groove, and the position in one of them concave ring groove between two adjacent pocket holes forms end face groove triangular in shape; Described pocket hole forms the second confined planes near the two ends of a side of groove, and two the second confined planes coordinate the reducing shape that forms restriction cylindrical roller; The two ends that described pocket hole differs from the opposite side of the second confined planes form the first confined planes, and two the first confined planes coordinate the reducing shape that forms restriction cylindrical roller; Distance between two the first confined planes outer ends is less than two distances between the second confined planes outer end; Described retainer is by integrally moulded; Described concave ring groove bottom surface and internal ring wall, external annulus crossover position form the guide groove of cross section semicircular in shape; Described the first confined planes and the second confined planes are arc shaped surface.
Compared with prior art, the invention has the beneficial effects as follows: two walls that described pocket hole coordinates with cylindrical roller are the plane being parallel to each other, roller forms line with retainer working plane and contacts, and realizes good heat radiating and evenly lubricated, reduce friction, ensure low vibration and quiet; Between described the second confined planes and leg-of-mutton groove, there is less thickness, possess good elasticity, be beneficial to the dismounting of cylindrical roller; Described concave ring groove bottom surface and internal ring wall, external annulus crossover position form the guide groove of cross section semicircular in shape, are convenient to lubricant oil circulation: simple in structure, highly versatile.
Brief description of the drawings
Fig. 1 is the structural representation of retainer.
Fig. 2 is that the A-A of Fig. 1 is to structural representation.
Fig. 3 is that the B-B of Fig. 1 is to structural representation.
The mounting structure schematic diagram of the retainer that Fig. 4 is.
Fig. 5 is the structural representation of the retainer of prior art.
Fig. 6 is that the C-C of Fig. 5 is to structural representation.
1, seat ring; 2, cylindrical roller; 3, retainer; 31, pocket hole; 32, concave ring groove; 33, guide groove; 34, groove; 35, the first confined planes; 36, the second confined planes; 4, inner ring; 5, the second roller; 6, outer ring; 7, snap ring.
Embodiment
With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.
According to shown in Fig. 1 to Fig. 4, the retainer of a kind of roller bearing described in the present embodiment, described retainer 3 entirety are ring, on retainer, evenly form multiple pocket holes 31 that hold cylindrical roller, described pocket hole entirety is rectangular, and two walls that pocket hole coordinates with cylindrical roller are the plane being parallel to each other; The internal and external circumferential that is positioned at pocket hole on described retainer forms respectively internal ring wall and external annulus, and internal ring wall is concordant with pocket hole end surface, and external annulus is higher than pocket hole end surface; Described retainer both ends of the surface are positioned at external annulus with formation concave ring groove 32, and the position in one of them concave ring groove between two adjacent pocket holes forms end face groove triangular in shape 34; Described pocket hole forms 36, two the second confined planes of the second confined planes near the two ends of a side of groove and coordinates the reducing shape that forms restriction cylindrical roller; The two ends that described pocket hole differs from the opposite side of the second confined planes form the reducing shape that 35, two the first confined planes of the first confined planes coordinate formation restriction cylindrical roller; The first described confined planes, the position that the second confined planes has limited cylindrical roller, make it to be difficult for deviating from; Between described the second confined planes and groove 34, there is less thickness, possess good elasticity, be beneficial to the dismounting of cylindrical roller.Described retainer is by integrally moulded, and production and processing is convenient.
Described groove is triangular in shape near the cross section of external annulus, is isosceles trapezoid near the section transitions of internal ring wall.The side wall surface relative with the second confined planes of groove is parallel with the second confined planes.
Two walls that described pocket hole coordinates with cylindrical roller are the plane being parallel to each other, pocket hole and cylindrical roller area of contact reduce, form linear contact, so just both can conveniently install and remove roller, can reduce again bearing caused friction in operation process, can solve again heat radiation and lubrication problem between cylindrical roller 2 and retainer 3, ensure high strength, the long lifetime of bearing.
Described concave ring groove bottom surface and internal ring wall, external annulus crossover position form the guide groove 33 of cross section semicircular in shape.Described retainer two sides has four guide grooves, can hold more lubricant oil, has ensured to rub between cylindrical roller and inner ring, seat ring little, and heating is few, long service life; And the weight of retainer decreases, save cost, embody economic benefit.
Be illustrated in figure 4 a combination bearing, include seat ring 1, inner ring 4 and outer ring 6, between an end face of described inner ring and the end face of seat ring, be evenly provided with cylindrical roller 2, cylindrical roller is arranged in a retainer 3; Described inner ring is away from being provided with the second roller 5 between the other end outer wall of seat ring and outer ring inwall.Cylindrical roller and the second roller are cylindrical.When this combination bearing assembling, first snap ring 7 is enclosed within on inner ring 4, with assembling mould, the second roller 5 is installed in the roller mounting groove of inner ring, then put outer ring 6, then snap ring 7 is packed into outer ring 6.Complete the installation of rotary bearing part, then thrust packs cylindrical roller 2 retainer 3 into from the second confined planes one side, and cylindrical roller is installed on after retainer, adds top race 1, realizes last trap, forms a set of bearing.

Claims (1)

1. the retainer of a roller bearing, it is characterized in that: described retainer entirety is ring, on retainer, evenly form multiple pocket holes that hold cylindrical roller, described pocket hole entirety is rectangular, and two walls that pocket hole coordinates with cylindrical roller are the plane being parallel to each other; The internal and external circumferential that is positioned at pocket hole on described retainer forms respectively internal ring wall and external annulus, and internal ring wall is concordant with pocket hole end surface, and external annulus is higher than pocket hole end surface; Described retainer both ends of the surface are positioned at external annulus with formation concave ring groove, and the position in one of them concave ring groove between two adjacent pocket holes forms end face groove triangular in shape; Described pocket hole forms the second confined planes near the two ends of a side of groove, and two the second confined planes coordinate the reducing shape that forms restriction cylindrical roller; The two ends that described pocket hole differs from the opposite side of the second confined planes form the first confined planes, and two the first confined planes coordinate the reducing shape that forms restriction cylindrical roller; Distance between two the first confined planes outer ends is less than two distances between the second confined planes outer end; Described retainer is by integrally moulded; Described concave ring groove bottom surface and internal ring wall, external annulus crossover position form the guide groove of cross section semicircular in shape; Described the first confined planes and the second confined planes are arc shaped surface.
CN201410388944.0A 2014-08-08 2014-08-08 A kind of retainer of cylinder roller bearing Active CN104154122B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410388944.0A CN104154122B (en) 2014-08-08 2014-08-08 A kind of retainer of cylinder roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410388944.0A CN104154122B (en) 2014-08-08 2014-08-08 A kind of retainer of cylinder roller bearing

Publications (2)

Publication Number Publication Date
CN104154122A true CN104154122A (en) 2014-11-19
CN104154122B CN104154122B (en) 2016-08-17

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CN201410388944.0A Active CN104154122B (en) 2014-08-08 2014-08-08 A kind of retainer of cylinder roller bearing

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009097525A (en) * 2007-10-12 2009-05-07 Nsk Ltd Rolling bearing with cage
CN201606409U (en) * 2010-02-05 2010-10-13 江苏帝达贝轴承有限公司 Integral retainer for cylinder roller bearing
EP2264325A1 (en) * 2002-10-08 2010-12-22 Ab Skf Roller bearing cage
CN201891739U (en) * 2010-12-15 2011-07-06 江苏南港回转支承有限公司 Rotary supporting plane retainer unit
JP2014139474A (en) * 2012-12-21 2014-07-31 Nsk Ltd Rolling bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2264325A1 (en) * 2002-10-08 2010-12-22 Ab Skf Roller bearing cage
JP2009097525A (en) * 2007-10-12 2009-05-07 Nsk Ltd Rolling bearing with cage
CN201606409U (en) * 2010-02-05 2010-10-13 江苏帝达贝轴承有限公司 Integral retainer for cylinder roller bearing
CN201891739U (en) * 2010-12-15 2011-07-06 江苏南港回转支承有限公司 Rotary supporting plane retainer unit
JP2014139474A (en) * 2012-12-21 2014-07-31 Nsk Ltd Rolling bearing

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Publication number Publication date
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Address after: 313200 Zhejiang city of Huzhou province Deqing County leidian town Canal Road No. 8

Patentee after: Zhejiang Tianma Bearing Group Co., Ltd.

Address before: 313200 Zhejiang city of Huzhou province Deqing County leidian town near the canal Hangzhou Industrial Zone, Road No. 16

Patentee before: ZHEJIANG TIANMA BEARING CO., LTD.