CN204003964U - A kind of cylindrical roller combination bearing - Google Patents

A kind of cylindrical roller combination bearing Download PDF

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Publication number
CN204003964U
CN204003964U CN201420447936.4U CN201420447936U CN204003964U CN 204003964 U CN204003964 U CN 204003964U CN 201420447936 U CN201420447936 U CN 201420447936U CN 204003964 U CN204003964 U CN 204003964U
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CN
China
Prior art keywords
ring
roller
groove
retainer
pocket hole
Prior art date
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CN201420447936.4U
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Chinese (zh)
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 CO Ltd
Tianma Bearing Group Co Ltd
Original Assignee
ZHEJIANG TIANMA BEARING CO Ltd
Tianma Bearing Group Co Ltd
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Priority to CN201420447936.4U priority Critical patent/CN204003964U/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/381Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load

Abstract

The utility model discloses a kind of cylindrical roller combination bearing, include seat ring, inner ring and outer ring, between an end face of described inner ring and the end face of seat ring, be evenly provided with the first roller, the first roller is arranged in a retainer; Described inner ring is away from being provided with the second roller between the other end outer wall of seat ring and outer ring inwall.Easy for installation when bearing uses, shortened the installation time, improved manufacturing efficiency; Structurally, guaranteed simple in structure, precision is high, interchangeability is strong, and increases linking intensity, improves bearing working life; Compact structure, has improved coaxality, turns round more stable, reduces noise.

Description

A kind of cylindrical roller combination bearing
Technical field
The utility model belongs to bearing structure field, is specifically related to a kind of cylindrical roller combination bearing that can bear larger radial and axial joint load, is mainly used in the engineering machinery such as speed reducer.
Background technique
Bearing is a kind of being applied on rotating mechanism, is used for supporting, and the parts that reduce friction and bear 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, especially larger axis is to load, and mounting or dismounting are simple, and bearing capacity is very strong, thereby is applicable to the engineering machinery of larger radial load and thrust load.At present domesticly all adopt a set of radial bearing to install to meet operating mode demand together with a set of thrust-bearing, but need to increase other frock while installing, it is not too convenient to install, and the installation used time is longer.
Model utility content
Technical problem to be solved in the utility model is to overcome existing above-mentioned deficiency in prior art, and provide a kind of structure simplify, install and remove conveniently, compared with the cylindrical roller combination bearing of long-life.
For realizing the object of the utility model, be achieved by the following technical solutions: a kind of cylindrical roller combination bearing, include seat ring, inner ring and outer ring, between an end face of described inner ring and the end face of seat ring, be evenly provided with the first roller, the first roller is arranged in a retainer; Described inner ring is away from being provided with the second roller between the other end outer wall of seat ring and outer ring inwall.
As preferred version: described inner ring integral body is toroidal, and the inner circle wall of inner ring is cylindrical, the outer wall of inner ring is the first cylndrical surface, conical surface and the second cylndrical surface connecting successively, and the cone angle of described conical surface is 90-100 °; On described the second cylndrical surface, form the roller mounting groove that holds described the second roller; The cross section of roller mounting groove is rectangular, Yu Liangge side, the bottom surface crossover position of roller mounting groove form cross section be circular arc in order to hold the second guide groove of lubricant oil.
As preferred version: described outer ring integral body is ring, forms the annular retaining wall coordinating with the second roller in one end of outer ring week; The inwall that outer ring differs from retaining wall one end offers annular groove, is arranged with to limit the snap ring of outer ring and the second roller relative position in annular groove; Described retaining wall and outer ring crossover position form cross section be circular arc in order to hold the 3rd guide groove of lubricant oil.
As preferred version: described retainer integral body is ring, evenly forms a plurality of pocket holes that hold the first roller on retainer, and described pocket hole integral body 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 the first roller; The two ends that described pocket hole differs from the opposite side of the second confined planes form the first confined planes; 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.
Compared with prior art, the beneficial effects of the utility model are: easy for installation when 1. bearing uses, shortened the installation time, and improved manufacturing efficiency; 2. structurally, guaranteed simple in structure, precision is high, interchangeability is strong, and increases linking intensity, improves bearing working life; 3. compact structure, has improved coaxality, turns round more stable, reduces noise.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of inner ring.
Fig. 3 is the structural representation of outer ring.
Fig. 4 is the structural representation of retainer.
Fig. 5 is that the A-A of Fig. 4 is to structural representation.
Fig. 6 is that the B-B of Fig. 4 is to structural representation.
1, seat ring; 2, the first roller; 3, retainer; 31, pocket hole; 32, concave ring groove; 33, the first guide groove; 34, groove; 35, the first confined planes; 36, the second confined planes; 4, inner ring; 401, the first cylndrical surface; 402, conical surface; 403, the second cylndrical surface; 421, roller mounting groove; 422, the second guide groove; 5, the second roller; 6, outer ring; 61, retaining wall; 62, the 3rd guide groove; 63, annular groove; 7, snap ring.
Embodiment
With reference to the accompanying drawings embodiment of the present utility model is made a detailed explanation below.
According to shown in Fig. 1 to Fig. 6, a kind of cylindrical roller combination bearing described in the present embodiment, includes seat ring 1, inner ring 4 and outer ring 6, is evenly provided with the first roller 2, the first rollers and is arranged in a retainer 3 between an end face of described inner ring and the end face of seat ring; 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.The first roller and the second roller are cylindrical.
Described inner ring 4 integral body are toroidal, and the inner circle wall of inner ring is cylindrical, and the outer wall of inner ring is the first cylndrical surface 401, conical surface 402 and the second cylndrical surface 403 connecting successively, and the cone angle of described conical surface is 90-100 °; On described the second cylndrical surface, form the roller mounting groove 421 that holds described the second roller; The cross section of roller mounting groove is rectangular, Yu Liangge side, the bottom surface crossover position of roller mounting groove form cross section be circular arc in order to hold the second guide groove 422 of lubricant oil.Described inner ring structure is firm, has larger thickness with the first roller joint, and mechanical strength is high, is difficult for deformation.
Described outer ring 6 integral body are ring, form the annular retaining wall 61 coordinating with the second roller in one end of outer ring week; The inwall that outer ring differs from retaining wall one end offers annular groove 63, is arranged with to limit the snap ring 7 of outer ring 6 and the second roller relative position in annular groove; Described retaining wall and outer ring crossover position form cross section be circular arc in order to hold the 3rd guide groove 62 of lubricant oil.The 3rd described guide groove and the circular arc central angle in the second guide groove cross section are 270 degree, such the 3rd guide groove and the second channel depths are larger, two the second guide grooves and the 3rd guide groove can hold more lubricant oil, guaranteed to rub between the first roller and inner ring, seat ring little, heating is few, long service life.
Described retainer 3 integral body are ring, evenly form a plurality of pocket holes 31 that hold the first roller on retainer, and described pocket hole integral body 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 near the two ends of a side of groove the reducing shape that 36, two the second confined planes of the second confined planes coordinate formation restriction the first roller; The two ends that described pocket hole differs from the opposite side of the second confined planes form the first confined planes 35; 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.The position that the first described confined planes, the second confined planes have limited cylindrical roller, makes 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.
Two walls that described pocket hole coordinates with the first roller are the plane being parallel to each other, pocket hole and the first 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 the first roller 2 and retainer 3, guarantee high strength, the long lifetime of bearing.
Described concave ring groove bottom surface and internal ring wall, external annulus crossover position form the first guide groove 33 of cross section semicircular in shape.Described retainer two sides has four the first guide grooves, can hold more lubricant oil, has guaranteed to rub between the first roller and inner ring, seat ring little, and heating is few, long service life; And the weight of retainer decreases, saved cost, embodied economic benefit.
During this combination bearing assembling, first snap ring 7 is enclosed within on inner ring, with assembling mould, the second roller is installed in the roller mounting groove 421 of inner ring, then put outer ring 6, then snap ring is packed into outer ring.Complete the installation of rotary bearing part, then thrust packs the first roller 2 retainer into from the second confined planes one side, and the first roller is installed on after retainer, adds top race, realizes last trap, forms a set of bearing.

Claims (4)

1. a cylindrical roller combination bearing, is characterized in that: include seat ring, inner ring and outer ring, between an end face of described inner ring and the end face of seat ring, be evenly provided with the first roller, the first roller is arranged in a retainer; Described inner ring is away from being provided with the second roller between the other end outer wall of seat ring and outer ring inwall.
2. a kind of cylindrical roller combination bearing according to claim 1, it is characterized in that: described inner ring integral body is toroidal, the inner circle wall of inner ring is cylindrical, the outer wall of inner ring is the first cylndrical surface, conical surface and the second cylndrical surface connecting successively, and the cone angle of described conical surface is 90-100 °; On described the second cylndrical surface, form the roller mounting groove that holds described the second roller; The cross section of roller mounting groove is rectangular, Yu Liangge side, the bottom surface crossover position of roller mounting groove form cross section be circular arc in order to hold the second guide groove of lubricant oil.
3. a kind of cylindrical roller combination bearing according to claim 1 and 2, is characterized in that: described outer ring integral body is ring, forms the annular retaining wall coordinating with the second roller in one end of outer ring week; The inwall that outer ring differs from retaining wall one end offers annular groove, is arranged with to limit the snap ring of outer ring and the second roller relative position in annular groove; Described retaining wall and outer ring crossover position form cross section be circular arc in order to hold the 3rd guide groove of lubricant oil.
4. a kind of cylindrical roller combination bearing according to claim 1, it is characterized in that: described retainer integral body is ring, on retainer, evenly form a plurality of pocket holes that hold the first roller, described pocket hole integral body 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 the first roller; The two ends that described pocket hole differs from the opposite side of the second confined planes form the first confined planes; 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.
CN201420447936.4U 2014-08-08 2014-08-08 A kind of cylindrical roller combination bearing Active CN204003964U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420447936.4U CN204003964U (en) 2014-08-08 2014-08-08 A kind of cylindrical roller combination bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420447936.4U CN204003964U (en) 2014-08-08 2014-08-08 A kind of cylindrical roller combination bearing

Publications (1)

Publication Number Publication Date
CN204003964U true CN204003964U (en) 2014-12-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154112A (en) * 2014-08-08 2014-11-19 浙江天马轴承有限公司 Cylindrical roller combined bearing
CN104930053A (en) * 2015-05-29 2015-09-23 浙江天马轴承有限公司 Cylindrical roller bearing
CN104154112B (en) * 2014-08-08 2017-01-04 浙江天马轴承有限公司 A kind of cylindrical roller combination bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154112A (en) * 2014-08-08 2014-11-19 浙江天马轴承有限公司 Cylindrical roller combined bearing
CN104154112B (en) * 2014-08-08 2017-01-04 浙江天马轴承有限公司 A kind of cylindrical roller combination bearing
CN104930053A (en) * 2015-05-29 2015-09-23 浙江天马轴承有限公司 Cylindrical roller bearing

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