CN104105893A - Rolling bearing - Google Patents
Rolling bearing Download PDFInfo
- Publication number
- CN104105893A CN104105893A CN201380008723.XA CN201380008723A CN104105893A CN 104105893 A CN104105893 A CN 104105893A CN 201380008723 A CN201380008723 A CN 201380008723A CN 104105893 A CN104105893 A CN 104105893A
- Authority
- CN
- China
- Prior art keywords
- retainer
- unit
- side plate
- face
- circumferential direction
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
- F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
- F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window cages
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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
- F16C33/46—Cages for rollers or needles
- F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
- F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the 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
- F16C33/46—Cages for rollers or needles
- F16C33/51—Cages for rollers or needles formed of unconnected members
- F16C33/513—Cages for rollers or needles formed of unconnected members formed of arcuate segments for carrying one or more 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings 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
- F16C19/34—Bearings 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
- F16C19/36—Bearings 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 a single row of rollers
- F16C19/364—Bearings 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 a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
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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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
Abstract
The cage (20) of this rolling bearing is formed by joining multiple cage segments (21) in series in the circumferential direction and configures a substantially polygonal cylinder shape or a substantially polygonal frustum cylinder shape. The difference between the designed value for the circumferential dimension (H) of the multiple cage segments (21) and the actual length at normal temperature is 0.075% or less. The pillar sections (1) are provided with guides (6) for preventing the falling of the rolling element inward in the radial direction and for guiding the rolling element. Gaps, which allow displacement of the cage segments (21) in the diameter direction, are formed between the guides (6) and the rolling surfaces of conical rollers (7).
Description
Technical field
The present invention relates to a kind of rolling bearing.
Background technique
About rolling bearing, usually by outer ring, inner ring and a plurality of rolling elements of being configured between outer ring and inner ring, formed, its a plurality of rolling elements are kept by retainer.As retainer, conventionally adopt the retainer of the whole shape being made by single material, and at wind-driven generator and steelmaking equipment, in the main equipment of building machinery etc. in applied large-size rolling bearing, cause is for the ease of assembling, maintenance and maintenance, also have the retainer that has adopted Splittable.Such-and-such Splittable retainer, carries out assembly along circumferencial direction with array by a plurality of retainer single-units, and has formed on the whole the retainer (for example referring to Patent Document 1,2) of a cylindrical shape or hollow cone platform shape.
Here, by being described in detail with reference to Figure 12,13 just relevant original Splittable retainers.As shown in figure 12, to form circular-arc a plurality of retainer single-units 121, along circumferencial direction, by array, carry out assembly installation, finally at it, forming on the whole likeness in form cylindric or be the described Splittable retainer 120 of hollow cone platform shape.As shown in figure 13, as each retainer single-unit 121, forming section is circular-arc on the whole, is provided with the 1 opposite end listrium 102,102 that is all separately circular-arc on axial two end part, and a plurality of pillars 101,101 that combine with ora terminalis plate 102,102.And the inner side surface by this two ends listrium 102,102 and part along the circumferential direction two adjacent pillar 101,101 institute of the side at circumferencial direction frames close, form a pocket hole 103,103 that can keep roller (not shown) free to rotate.In the inner side surface in pocket hole 103,103, pillar 101,101 sides at circumferencial direction become the guide surface that the rolling surface of each roller is guided.
In the structure of original Splittable retainer 120, the perimeter L of the total H ' in the along the circumferential direction gap of each retainer single-unit 121 of two adjacent assembly and retainer pitch circle P ' ' between relation at normal temperatures, must meet H '≤0.001L ' to avoid each retainer single-unit 121 to cause its breakage because producing conflict each other.Moreover, between the inner face in the pocket hole 103 of retainer single-unit 121 and the rolling surface of not shown roller, because being upwards provided with necessarily movably play in the footpath of retainer single-unit 121, just can effectively prevent when temperature rises, the interference that produced each other because of retainer single-unit 121 causes the stress deformation in pocket hole 103, the breakage of Splittable retainer 120 etc.
Prior art document
Patent documentation
Patent documentation 1: the JP 2009-97525 of Japan communique
Patent documentation 2: european patent application discloses specification No. 1408248
The problem that invention will solve
But, for to process its make as described in the mould of molding and forming of circular-arc retainer single-unit 121, cost is very expensive.
The present invention, in view of described all kinds of situations, be take and tried hard to provide a kind of rolling bearing with the Splittable retainer as advantage cheap for manufacturing cost.
Summary of the invention
Described object of the present invention can realize by following formation.
(1) be a kind of rolling bearing, there is the outer ring that is formed with outer ring raceway face on aperture surface;
On diametric plane, be formed with outside the inner ring of inner ring raceway face;
Between described outer ring raceway face and described inner ring raceway face, be along the circumferential direction provided with a plurality of can free rolling rolling element;
1 pair of side plate making in the axial direction parallel configuration will be there is, and a plurality of retainer single-units of a plurality of pillars that 1 pair of described side plate is connected in the axial direction, by circumferencial direction, carrying out in-line combination forms, and by described 1 pair of side plate and the pocket hole that becomes in a circumferential direction relative described pillar to be shaped, the retainer that keeps described rolling element, it is characterized in that
The radial outside end face of described side plate and radially inner side end face are plane parallel to each other,
With a plurality of retainer single-units described retainer that in-line combination forms in a circumferential direction, be polygon cylindric or be the shape of polygon hollow cone platform on the whole,
By the design load of the size in a circumferential direction of described retainer single-unit, and the difference between the physical length under the normal temperature of the size in a circumferential direction of described retainer single-unit is limited to below 0.075%,
For fear of described rolling element, to radially inner side, come off, on described pillar, be provided with the guide portion of the described rolling element of guiding,
Between described guide portion and the roller surface of described rolling element, formed and can make described retainer single-unit make diametrically the play of relative displacement.
(2) at the rolling bearing described in (1), it is characterized in that, on described pillar, be provided with the projection for avoiding described rolling element to come off to radial outside,
Described projection and described guide portion, have the shape corresponding with being arranged on described rolling element on described inner ring raceway face.
(3) at the rolling bearing described in (1) or (2), it is characterized in that, on described retainer single-unit, have from the axial outside of each side plate end face and extend, and the side plate extension protruding from described retainer single-unit both ends of the surface along the circumferential direction to circumferencial direction
The axial inner side end of described side plate extension is arranged on than the axial inner side end of described side plate and is more relied on the position of axial inner side,
When a plurality of described retainer single-units are carried out to in-line combination by circumferencial direction, two each adjacent retainer single-units carry out mutual contact by the side plate extension by described.
(4) rolling bearing described in any one in (1)～(3), is characterized in that described retainer single-unit is that wherein any one synthetic resin by aromatic nylon, polyether-based ether ketone, polyphenylene sulfide is formed.
The effect of invention
By the present invention, just can provide a kind of in manufacture cost the rolling bearing of relatively low Splittable retainer.
Accompanying drawing explanation
[Fig. 1] is the ideograph for the relevant Splittable retainer of explanation the in the present invention with 1st mode of execution.
[Fig. 2] is the stereogram of the retainer single-unit of Splittable retainer in pie graph 1.
[Fig. 3] is the sectional view of along the circumferential direction going up of the retainer single-unit in Fig. 2.
[Fig. 4] is the side view of the retainer single-unit in Fig. 2.
[Fig. 5] is the planimetric map of the retainer single-unit in Fig. 2.
[Fig. 6] is the sectional view of along the circumferential direction going up of the retainer single-unit in Fig. 2, the diagram describing with the radial internal clearance between guide portion and tapered roller.
[Fig. 7] is the sectional view of along the circumferential direction going up of the retainer single-unit in Fig. 2, with the diagram that the shape of guide portion is described further.
[Fig. 8] is the stereogram for the retainer single-unit of the relevant formation Splittable retainer of explanation the in the present invention with 2nd mode of execution.
[Fig. 9] is the side view of the retainer single-unit in Fig. 8.
[Figure 10] is the planimetric map of the retainer single-unit in Fig. 8.
[Figure 11] is the enlarged view of Figure 10 significant points.
[Figure 12] is the ideograph of current Splittable retainer example.
[Figure 13] is the stereogram of the retainer single-unit of current Splittable retainer.
Reference character
1 pillar
2 side plates
2a radial outside end face
2b radially inner side end face
3 pocket holes
5 projections
6 guide portions
7 tapered rollers
9 side plate extensions
20,120 retainers
21,121 retainer single-units
70 outer ring raceway faces
80 inner ring raceway faces
Embodiment
To describe by Fig. 1～Figure 11 pair of rolling bearing relevant with the embodiments of the present invention below.
(the 1st mode of execution)
In Fig. 1～7, the rolling bearing of just relevant the 1st mode of execution of the present invention is described.As shown in Figure 1, the retainer 20 of use in the rolling bearing of present embodiment be by, a plurality of retainer single-units 21 that the synthetic resin of aromatic nylon, polyether-based ether ketone, polyphenylene sulfide etc. forms form by in-line combination at circumferencial direction, both so-called partition type retainer.And in the present embodiment, 20 of retainers are by amounting to 18 retainer single-units 21, at circumferencial direction, by in-line combination, form.In following preface, the number for the required retainer single-unit of retainer of formation is referred to as to the Segmentation Number (being 18 in this example) of retainer.Yet, these retainer single-units 21, it has more than is each other to have carried out mechanical combination, but does on by the direction of circumference array after some necessity chimeric, is arranged between outer ring and inner ring to form retainer 20.
As shown in Fig. 2～5, each retainer single-unit 21 has a pair of parallel side plate 2,2 vertically and a plurality of pillars 1 of being connected in the axial direction with this pair of side plates 2,2 form.Axial inner side end 2c, the 2c of side plate 2,2 and with respect to side 1c, the 1c of circumferencial direction upper supporting column 1,1, formed for keeping the pocket hole 3 of tapered roller 7 (referring to Fig. 3).In the present embodiment, this pair of side plates the 2, the 2nd, by along the circumferential direction go up with certain span set 4 pillars 1 connect, form 3 pocket holes 3.To be in the tapered roller 7 that kept respectively in each pocket hole 3 of retainer single-unit 21, can be arranged on freely to rotate formed outer ring raceway face 70 on the aperture surface of outer ring, and on the outer diametric plane of inner ring between formed inner ring raceway face 80.
As shown in Figure 2, the place, axial intermediate portion on each pillar 1, is provided with towards radially inner side opening the oil groove 4 that connects in a circumferential direction, can effectively lubricating between the rolling surface of tapered roller 7 and inner ring raceway face 80.In addition, as shown in Figure 2 and Figure 3, at the radial outside place of the side 1c near pillar 1, be provided with a pair of projection of arranging in the axial direction 5,5, to avoid tapered roller 7 to come off out from radial outside.At the radially inner side of the side 1c near pillar 1, place, two ends is vertically provided with a pair of guide portion 6,6, to prevent that tapered roller 7 from coming off out from radially inner side again.Now, be in relation on the pillar 1,1 on the relative position of circumferencial direction, between the spacing A of two opposed facing projections 5,5 and the diameter d of tapered roller 7 and must meet A < d.And on circumferencial direction becomes relative pillar 1,1 position, the relation between the spacing B of two opposed facing guide portions 6,6 and the diameter d of tapered roller 7 also must meet B < d.Like this, can veritably tapered roller 7 be remained in pocket hole 3 and not come off.
As shown in Figure 4, each side plate 2 is by by radial outside end face 2a, and the plane being parallel to each other with radially inner side end face 2b formed two forms.So design, can make to be more prone to when the mould of the side plate 2 of manufacturing retainer single-unit 21, thereby reach the object that reduces fabricating cost.
As shown in Figure 4, retainer single-unit 21, at end face 1a, the 1a of circumferencial direction, is determined with the Segmentation Number corresponding to retainer, and towards inner side, is formed certain angle of inclination C from outside radially.As shown in Figure 5, simultaneously end face 1a, the 1a of the circumferencial direction of retainer single-unit 21, determine with the shape of the Segmentation Number corresponding to retainer and retainer 20 again, and from axial side's side direction, the opposing party's side and form certain angle of inclination D.On end face 1a, the 1a of circumferencial direction like this, a plurality of retainer single-units 21 are arranged by circumferencial direction, with form in upright arrangement, combine, finally just can form the retainer 20 that is roughly polygon hollow cone platform shape.Here the symbol 2d in Fig. 4,5 is expressed as the end face of pair of side plates 2,2 on axial outside.
In addition, again as shown in Figure 1, for a plurality of retainer single-units 21 along the circumferential direction being gone up to the very close to each other assembly of carrying out, the design load of relevant its size H in a circumferential direction, can by each retainer single-unit 21, be all the roller dimension, roller number, pocket hole 3 of inner ring size under identical occasion, outer ring size, tapered roller 7 with the play of tapered roller 7, the number of the thickness of retainer 20 and retainer single-unit 21 by the mode of geometry calculating, decide.Yet, as the size H on the circumferencial direction of the retainer single-unit 21 of its object, can adopt the radial outside end face 2a of side plate 2, also can adopt radially inner side end face 2b.And, by a plurality of retainer single-units 21 design load of size H in a circumferential direction, be set as relatively it in the absolute value 0.075% of the lower physical length of normal temperature (approximately 20 ℃).That is to say, the absolute value of the difference of the physical length under the design load of the size H on the circumferencial direction of a plurality of retainer single-units 21 and normal temperature (approximately 20 ℃) must guarantee below 0.075%, to guarantee almost to combine assembling under state very close to each other each other at retainer single-unit 21.
As shown in Figure 6, in pocket hole 3, be provided with between guide portion 6 and the rolling surface of tapered roller 7, its retainer single-unit 21 can radially be made the gap e of displacement.Like this, when retainer single-unit 21 is running into temperature, rise and absorb after moisture exactly, while causing it to produce in a circumferential direction size expansion, because of retainer single-unit 21, can in the scope of gap e, to external diameter direction, make suitable adjustment of displacement, can reduce and the mutual interference between adjacent retainer single-unit 21,21 around.Thereby, just can effectively prevent the generation of the stress deformation in pocket hole 3 and the phenomenons such as breakage of retainer single-unit 21.
About the projection 5 on pillar 1 and guide portion 6, the shape of having copied the rolling surface of tapered roller 7 forms.Also be, in retainer single-unit 21 in the middle of formed 3 pocket holes 3, to be arranged on a central pocket hole 3a of central position, doing in shape some changes with projection 5 and guide portion 6 on 2 ends pocket hole 3b set on circumferencial direction both sides at central pocket hole 3a.
Specifically, as shown in Fig. 6,7, for not hindering the rolling of tapered roller 7, in central pocket hole 3a, be provided with towards radially inner side, and form shorter projection 5a, 5a.Guide surface 6a, 6a on guide portion 6 in central pocket hole 3a be by having copied truncated cone shape 8 in addition, radius of curvature that will be larger than tapered roller 7 and form the shape of its likeness in form truncated cone shape 8.
For described mode, as shown in Fig. 6,7, on the 3b of the pocket hole of end, for fear of coming off of tapered roller 7, be provided with towards radially inner side, be the medial side projection 5b of more microscler shape, and for not hindering the rolling of tapered roller 7, be provided with towards radially inner side, be the tip side projection 5b ' compared with brachmorphy shape.And, on the 3b of pocket hole, end, the medial side guide surface 6b of guide portion 6 and tip side guide surface 6b ', when formation has the radius of curvature shape of having copied truncated cone 8, have again and copied using the running shaft of rolling bearing as center, the shape of the truncated cone 8 while rotating with certain width from middle pocket hole 3a.By this structure design, because projection 5a, 5b, 5b ' and guide surface 6a, 6b, 6b ' have formed a structure of having copied strictly according to the facts the roller surface shape that is arranged on the tapered roller 7 between outer ring raceway face 70 and inner ring raceway face 80, just can positively play the effect that tapered roller 7 is led.
By the retainer single-unit 21 of the rolling bearing of such-and-such the 1st mode of execution, because the radial outside end face 2a of retainer single-unit 21 becomes plane parallel to each other with radially inner side end face 2b, so that more easy in the processing of the mould of the side plate 2 of retainer single-unit 21, both can make of lower cost.
Again because, retainer single-unit 21 is that the synthetic resin by aromatic nylon, polyether-based ether ketone, polyphenylene sulfide etc. forms, so just can, along with retainer single-unit 21 is realized the light-weighted while, can also obtain the retainer single-unit 21 of superperformances such as thering is self lubricity, low frictional properties, corrosion resistance, quietness.Owing to having adopted these described synthetic resin, likely adopt injection molding process to manufacture retainer single-unit 21 again, just likely in mass-produced mode, reduce its manufacture cost.
Again because, the surface configuration of formed projection 5 and guide portion 6 in pillar 1 on each pocket hole 3, copied the rolling surface that is arranged on the tapered roller 7 between outer ring raceway face 70 and inner ring raceway face 80 and be shaped, so, just can play a part certain guiding to tapered roller 7.
(the 2nd mode of execution)
Below, by using Fig. 8～11 pair relevant the 2nd mode of execution of the present invention to describe.In the retainer single-unit 31 of the Splittable retainer of the formation rolling bearing relevant with the 2nd mode of execution, except having circumferencial direction end face 1 d from retainer single-unit 31 stretches out the feature of side plate extension 9 towards circumferencial direction, identical with the retainer single-unit 21 in the 1st mode of execution for the rest.Therefore in its corresponding key element explanation, also adopted common label symbol and number indicate and represent, and the explanation of some relevant common structure parts has been done to omission.
In the single-unit of retainer shown in Fig. 8 31, from the axial outside end face 2d of paired side plate 2,2, extend, and towards the outside of circumferencial direction, stretch out on circumferencial direction end face 1d, the 1d of retainer single-unit 31, to form side plate extension 9,9.When a plurality of retainer single-units 31 are carried out to combination in upright arrangement on its circumferencial direction, in the retainer single-unit 31,31 of two adjacent combinations, thereby become in a circumferential direction between circumferencial direction end face 9a, the 9a of relative extension, can mutually answer back to and come in contact.Therefore, occur in the impulsive load in the retainer single-unit 31,31 of two adjacent combinations, can be born by side plate extension 9, when between the retainer single-unit 31,31 in two adjacent combinations, clash occasion time, just can relax the concentrated stress producing due to the distortion of pillar 1 on the pocket angular position in pocket hole 3 by side plate extension 9.
As shown in Figure 9, circumferencial direction end face 9a, the 9a of the side plate extension of each retainer single-unit 31, determine with the Segmentation Number corresponding to retainer, and towards inner side, form certain angle of inclination F from outside radially.Again as shown in Figure 10, circumferencial direction end face 9a, the 9a of the side plate extension of retainer single-unit 31, with the shape of the Segmentation Number corresponding to retainer and retainer, determine, and from axial side's side direction, the opposing party's side and form certain angle of inclination G.Here, utilization has circumferencial direction end face 9a, the 9a of the extension of structure like this, by retainer single-unit 31,31, carry out in a circumferential direction mutually touching and closing, then after its combination being assembled up in mode in upright arrangement, just can form the retainer 20 that is roughly polygon truncated cone.
And side plate extension 9 has the circumferencial direction end face 9a from extension, towards the circumferencial direction end face 1d of retainer single-unit 31, make the axial inner side end 9b of extension of continuity stretching, extension.The axial inner side end 9b of this extension, in the axial inner side end 2c than side plate 2, more to stretch in the position of axial inner side, therefore, when the tapered roller 7 in pocket hole 3 produces the occasion of conflicting with pillar 1, just can relax the concentrated stress that causes generation on the pocket angular position in pocket hole 3 by its side plate extension 9.Yet, in chamfer design in the present embodiment, because the axial inner side end 9b of this extension is configured to an inclined-plane with respect to the circumferencial direction end face 1d of retainer single-unit 31, so chamfering is not here set, be also feasible.
Yet the present invention is not limited in described mode of execution, also can do on its basis some suitable changes and improvement etc. and so on.In each described mode of execution, although doing certain explanation for the tapered roller bearing with Splittable retainer, but be exactly when assembling has the occasion of barrel roller bearing of Splittable retainer, the present invention also can be suitable for and implement, as while being this situation, the end face 9a at circumferencial direction of its circumferencial direction end face 1a and extension only makes by forming the structure of inclination diametrically.In addition, the number of relevant each retainer single-unit 21,31, and the number in the pocket hole 3 forming in each retainer single-unit 21,31, can do suitable design arrangement according to the requirement condition of the size of rolling bearing and purposes etc.
Yet, present patent application is based on the basis of Japan's patent application (Patent 2012-280248) of on December 21st, 2012 application and Japan's patent application (Patent 2013-257136) of application on December 12nd, 2013, and reference and reflected some contents in this patent.
Claims (4)
1. a rolling bearing, it has:
Outer ring, it is formed with outer ring raceway face on aperture surface;
Inner ring, it is formed with inner ring raceway face on diametric plane outside;
Rolling element, it can along the circumferential direction dispose a plurality of by free rolling between described outer ring raceway face and described inner ring raceway face;
Retainer, it is for by a plurality of retainer single-units of a plurality of pillars that have respectively 1 pair of side plate of parallel configuration in the axial direction and described 1 pair of side plate is connected in the axial direction, along the circumferential direction carry out in-line combination and form, and by described 1 pair of side plate and the pocket hole that relative described pillar forms in a circumferential direction keep described rolling element;
Described rolling bearing is characterised in that,
The radial outside end face of described side plate and radially inner side end face are plane parallel to each other,
With a plurality of retainer single-units, along the circumferential direction go up in-line combination and the described retainer that forms, be configured to and be polygon cylindric or be the shape of polygon hollow cone platform,
Difference between physical length under the normal temperature of the size in a circumferential direction of the design load of the size in a circumferential direction of described retainer single-unit and described retainer single-unit is defined as below 0.075%,
For fear of described rolling element, to radially inner side, come off, on described pillar, be provided with the guide portion of the described rolling element of guiding,
Between described guide portion and the rolling surface of described rolling element, be formed with and can make described retainer single-unit make diametrically the play of relative displacement.
2. rolling bearing as claimed in claim 1, is characterized in that, is provided with the projection of avoiding described rolling element to come off to radial outside on described pillar,
Described projection and described guide portion have the shape corresponding with being arranged on described rolling element on described inner ring raceway face.
3. rolling bearing as claimed in claim 1 or 2, is characterized in that,
Described retainer single-unit has, and from the axial outside of each side plate, end face extends, and the side plate extension protruding to circumferencial direction from the both ends of the surface of the circumferencial direction of described retainer single-unit,
The axial inner side end of described side plate extension is arranged on the position that more relies on axial inner side than the axial inner side end of described side plate,
When a plurality of described retainer single-units are along the circumferential direction carried out to in-line combination, two each adjacent retainer single-units carry out mutual contact by described side plate extension.
4. the rolling bearing as described in any one in claim 1～3, is characterized in that described retainer single-unit is that wherein any one synthetic resin by aromatic nylon, polyether-based ether ketone, polyphenylene sulfide is formed.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012280248 | 2012-12-21 | ||
| JP2012-280248 | 2012-12-21 | ||
| JP2013-257136 | 2013-12-12 | ||
| JP2013257136A JP2014139474A (en) | 2012-12-21 | 2013-12-12 | Rolling bearing |
| PCT/JP2013/084232 WO2014098212A1 (en) | 2012-12-21 | 2013-12-20 | Rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104105893A true CN104105893A (en) | 2014-10-15 |
Family
ID=50978528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380008723.XA Pending CN104105893A (en) | 2012-12-21 | 2013-12-20 | Rolling bearing |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2014139474A (en) |
| CN (1) | CN104105893A (en) |
| DE (1) | DE212013000259U1 (en) |
| WO (1) | WO2014098212A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10378580B2 (en) | 2015-04-10 | 2019-08-13 | Ntn Corporation | Tapered roller bearing |
| CN111902644A (en) * | 2018-03-28 | 2020-11-06 | Ntn株式会社 | Tapered roller bearing |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6657555B2 (en) * | 2014-08-01 | 2020-03-04 | 株式会社ジェイテクト | Roller bearing |
| CN104154122B (en) * | 2014-08-08 | 2016-08-17 | 浙江天马轴承有限公司 | A kind of retainer of cylinder roller bearing |
| JP6565570B2 (en) * | 2015-10-08 | 2019-08-28 | 中西金属工業株式会社 | Outer ring guide resin retainer, injection mold, and outer ring guide resin retainer manufacturing method |
| CN108361281B (en) * | 2017-01-26 | 2021-01-01 | 斯凯孚公司 | Cage segment, segmented cage and bearing |
| DE102017125700A1 (en) * | 2017-11-03 | 2019-05-09 | Schaeffler Technologies AG & Co. KG | Rolling bearing cage, method for producing a rolling bearing cage and use of a slide |
| CN110878798A (en) * | 2019-12-27 | 2020-03-13 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Holder with angular slope structure on end surface |
| WO2022221620A1 (en) * | 2021-04-16 | 2022-10-20 | The Timken Company | Skew limiting bearing cage |
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- 2013-12-12 JP JP2013257136A patent/JP2014139474A/en active Pending
- 2013-12-20 WO PCT/JP2013/084232 patent/WO2014098212A1/en active Application Filing
- 2013-12-20 DE DE212013000259.9U patent/DE212013000259U1/en not_active Expired - Lifetime
- 2013-12-20 CN CN201380008723.XA patent/CN104105893A/en active Pending
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| CN101331334A (en) * | 2005-12-16 | 2008-12-24 | Ntn株式会社 | Roller bearing, main shaft support structure for wind-driven generator, pad and retainer segment |
| CN101341349A (en) * | 2005-12-21 | 2009-01-07 | Ntn株式会社 | Rolling bearing, retainer segment, and main shaft support structure for wind-driven generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10378580B2 (en) | 2015-04-10 | 2019-08-13 | Ntn Corporation | Tapered roller bearing |
| CN111902644A (en) * | 2018-03-28 | 2020-11-06 | Ntn株式会社 | Tapered roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014098212A1 (en) | 2014-06-26 |
| DE212013000259U1 (en) | 2015-07-24 |
| JP2014139474A (en) | 2014-07-31 |
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