CN101341349A - Rolling bearing, retainer segment, and main shaft support structure for wind-driven generator - Google Patents
Rolling bearing, retainer segment, and main shaft support structure for wind-driven generator Download PDFInfo
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- CN101341349A CN101341349A CNA2006800478464A CN200680047846A CN101341349A CN 101341349 A CN101341349 A CN 101341349A CN A2006800478464 A CNA2006800478464 A CN A2006800478464A CN 200680047846 A CN200680047846 A CN 200680047846A CN 101341349 A CN101341349 A CN 101341349A
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- retainer
- roller
- rolling bearing
- pocket portion
- retainer member
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
A rolling bearing (11) comprises a plurality of rollers, and retainer segments (15a) retaining the rollers and split along a split line extending in an axial direction. The retainer segment (15a) has a plurality of pillar parts (22a), (22b), (22c) and (22d) extending in the axial direction so as to form first pockets (23a) and (23c) and a second pocket (23b) for housing the rollers, and a connection part extending in a circumferential direction so as to connect the plurality of pillar parts (22a) to (22d). Here, outer diameter side stopper parts (24a), (24b), (24c) and (24d) are provided on the outer diameter side of the pillar parts (22a) to (22d) positioned on the circumferential both sides of the first pockets (23a) and (23c) to limit the movement of the roller housed in the first pockets (23a) and (23c) toward the outer diameter side, and inner diameter side roller stopper parts (25a) and (25b) are provided on the inner diameter side of the pillar parts (22b) and (22c) positioned on the circumferential both sides of the second pocket (23b) to limit the movement of the roller housed in the second pocket (23b) toward the inner diameter side. Thus the retainer segments (15a) function as a roller guide.
Description
Technical field
The present invention relates to rolling bearing, retainer member and wind driven generator principal shaft supporting structure.
Background technique
Rolling bearing, generally by outer ring, inner ring, be configured in a plurality of rollers between inner ring and the outer ring, keep the retainer of a plurality of rollers to constitute.About keeping the retainer of roller, according to its material or manufacture method etc., there are resin-made cage, punching out retainer, cutting retainer, welding retainer etc. multiple, separately use according to purposes or performance respectively.It is one-piece type that retainer is generally, and that is to say that parts by ring-type constitute.
, the rolling bearing of the wind driven generator principal shaft of the blade that is used to accept wind is installed herein about supporting, owing to need bear big load, so rolling bearing itself also maximizes.So, each component parts such as roller or retainer also maximizes, and it is difficult that the production of parts or assembling become.In this case, if can cut apart each parts, then be easy to produce or assembling.
The technology of the relevant Splittable retainer of retainer being cut apart by the cutting lines that axially extends, open in European patent communique 1408248A2.Figure 10 is illustrated in the perspective view that disclosed Splittable retainer is the retainer member among the European patent communique 1408248A2.With reference to Figure 10, retainer member 101a has a plurality of post portion 103 of accommodating for formation that a plurality of pocket portion 104 of roller axially extends and for linking linking department 102a, the 102b that a plurality of post portion 103 extends in the contour direction.Internal side diameter in the post portion 103 of the contour direction both sides that are positioned at each pocket portion 104 is provided with internal side diameter roller retainer, is used to prevent that the rollers that are housed in the pocket portion 104 from deviating to internal side diameter.On the other hand, not being provided for the external diameter roller retainer that prevents that roller from deviating to outside diameter at outside diameter, is flat.In addition, be provided with the protuberance 106a that is used to guarantee with the distance of outer ring in the end of the outside diameter of post portion 103, be provided with the protuberance 106b (not shown) that is used to guarantee with the distance of inner ring in the end of the internal side diameter of post portion 103.
Figure 11 is one one the sectional view that expression comprises the rolling bearing of retainer member 101a shown in Figure 10.If with reference to Figure 10 and Figure 11, the formation of the rolling bearing 111 that comprises retainer member 101a is described, rolling bearing 111 has outer ring 112, inner ring 113, a plurality of roller 114, keeps a plurality of retainer member 101a, 101b, the 101c etc. of a plurality of rollers 114.A plurality of rollers 114 are kept by a plurality of retainer member 101a near the most stable position of the activity of roller is PCD (Pitch Circle Diameter) 105.The retainer member 101a that keeps a plurality of rollers 114, the mode of joining with the end face 107 of contour direction is conjointly combined at retainer member 101b, the 101c of contour direction and adjacent same shape.A plurality of retainer member 101a, 101b, 101c etc. are conjointly combined, and form a ring-type retainer that is included in the rolling bearing 111.
According to European patent communique 1408248A2, retainer member 101a is by the protuberance 106a on the outside diameter end face that is located at post portion 103 and be located at protuberance 106b on the internal side diameter end, guarantees from the outer ring 112 and the distance of inner ring 113.That is to say that retainer member 101a is the rail wheel guide member by outer ring 112 or inner ring 113 guide members.
As mentioned above, each retainer member 101a, 101b, 101c etc. are independent, do not link in the contour direction, be under the situation of rail wheel guide member therefore at retainer member 101a etc., easily in the outer ring 112 and 113 of inner rings move, in this position instability radially.
Specifically be, for example, under the situation that rolling bearing 111 landscape configuration of above-mentioned formation are used, when retainer member 101a is in position towards the sky, retainer member 101a downward direction moves, contact with protuberance 106b on the internal side diameter end face that is located at post portion 103 with the outer diametric plane 115 of the inner ring 113 that is positioned at the bottom, become inner ring guide member to inner ring 113 guide members.On the other hand, when retainer member 101a is in position towards ground, retainer member 101a downward direction motion, the aperture surface 116 that is positioned at the outer ring 112 of bottom contacts with protuberance 106a on the outside diameter end face that is located at post portion 103, becomes the outer ring guide member to outer ring 112 guide members.
Like this, retainer member 101a is easily to radially moving, if become the inner ring guide member according to the position in the rolling bearing 111, or outer ring guide member, the position instability radially of retainer member 101a then, when contacting, the misgivings that abnormal sound or retainer member 101a breakage take place are arranged with outer ring 112 or inner ring 113.
In addition, when bearing rotated, protuberance 106a scraped the oil film of getting plane of trajectory orbital 115,116, and the significantly reduced misgivings of the greasy property that makes rolling bearing 111 are arranged.
Summary of the invention
The objective of the invention is to, a kind of generation or damaged little rolling bearing of misgivings of abnormal sound is provided.
Another object of the present invention is to, a kind of retainer member that stably is configured on the rolling bearing is provided.
Another purpose of the present invention is, a kind of generation or damaged little wind driven generator principal shaft supporting structure of misgivings of abnormal sound is provided.
Rolling bearing of the present invention possesses a plurality of rollers and keeps the retainer of a plurality of rollers.Described retainer is divided into a plurality of retainer members by the cutting lines that axially extends.Each retainer member has for formation accommodates the 1st pocket portion of roller and a plurality of post portions that the 2nd pocket portion axially extends and extends the linking department that links a plurality of post portion in the contour direction.Post portion has and is used for limiting the roller that is housed in the 1st pocket portion to the outside diameter roller retainer of external diameter side shifting be used to limit the roller that is housed in the 2nd pocket portion internal side diameter roller retainer to the internal diameter side shifting.
By formation like this, can be by the moving to internal side diameter of the restriction of the outside diameter roller retainer in the post portion that is located at retainer member retainer member.In addition, can be by the moving to outside diameter of internal side diameter roller retainer restriction retainer member.As a result, the retainer member becomes the roller guide member, is configured in the rolling bearing with being stabilized.So, can suppress the retainer member contacts the generation of the abnormal sound that causes or retainer member etc. with outer ring or inner ring breakage.Herein, so-called the 1st pocket portion refers to be provided with and is used to prevent the pocket portion of roller to the mechanism that outside diameter is deviate from, and so-called the 2nd pocket portion refers to be provided with and is used to prevent the pocket portion of roller to the mechanism that internal side diameter is deviate from.In addition, so-called retainer member is the monomer that one-piece type ring-type retainer is cut apart by the cutting lines that axially extends, and comprises being used to more than 2 to accommodate the pocket portion of roller.That is to say,, form the retainer of 1 ring-type by connect a plurality of retainer members of ground combination in the contour direction.
The retainer member is by a plurality of retainers that are combined to form 1 ring-type, so its 1 each and every one shape is little, and simple.Therefore make easily, producibility improves, and operability or assembling performance are also good simultaneously.
Preferably, the post portion that is configured between the 1st pocket portion and the 2nd pocket portion has outside diameter roller retainer and internal side diameter roller retainer.So,, therefore the 1st pocket portion and the 2nd pocket portion adjacency can be made, pocket portion number contained in the retainer member can be reduced owing to outside diameter roller retainer and internal side diameter roller retainer can be located in 1 post portion.
More preferably, the retainer member has 3 pocket portions at least.So, can contain the 1st pocket portion or the 2nd pocket portion more than 2.So, owing to for outside diameter roller retainer or internal side diameter roller retainer, also can contain wherein any one more than 2, in rolling bearing, the retainer member disappears with respect to the misgivings that PCD tilts, and stability is improved more.
Most preferably, the retainer member is a resin system.The retainer member is compared with one-piece type retainer, small-sized and simple shape.So, by the retainer member is defined as resin system, can be easy to produce in enormous quantities by manufacturings such as injection mouldings.
Most preferably, roller is conical roller.Large-size rolling bearing for using in the main shaft of above-mentioned wind-driven generator etc. owing to will bear big axial load or moment load, radial load etc., therefore is fit to the conical rolling bearing that employing forms roller conical roller.If adopt such conical rolling bearing, even when conical rolling bearing becomes large-scale, producibility is also good, simultaneously can with the retainer component stability be configured in the rolling bearing, can suppress to contact the generation of the abnormal sound that causes etc. with outer ring etc.
In another aspect of this invention, the retainer member keeps a plurality of rollers, and the cutting lines that is axially extended is cut apart.In addition, the retainer member has a plurality of post portions of axially extending and forming the 1st and the 2nd pocket portion of accommodating roller and for linking the linking department that a plurality of post portion extends towards the contour direction.Herein, post portion has and is used for limiting the roller that is housed in the 1st pocket portion to the outside diameter roller retainer of external diameter side shifting be used to limit the roller that is housed in the 2nd pocket portion internal side diameter roller retainer to the internal diameter side shifting.
Such retainer member owing to by the roller guide member, therefore can be configured in the rolling bearing with being stabilized.So, can inhibition contact the generation of the abnormal sound that causes with outer ring or inner ring.
In still another aspect of the invention, the wind driven generator principal shaft supporting structure, is loaded in the fixed component and the rolling bearing of rotatable supporting spindle freely at the main shaft that has that blade, an end of accepting wind-force are fixed on the described blade and together rotate with blade.Described rolling bearing has a plurality of rollers and keeps the retainer of a plurality of rollers.Retainer is divided into a plurality of retainer members by the cutting lines that axially extends.Each retainer member has for formation accommodates the 1st pocket portion of roller and a plurality of post portions that the 2nd pocket portion axially extends and extends the linking department that links a plurality of post portion in the contour direction.Herein, post portion has and is used for limiting the roller that is housed in the 1st pocket portion to the outside diameter roller retainer of external diameter side shifting be used to limit the roller that is housed in the 2nd pocket portion internal side diameter roller retainer to the internal diameter side shifting.
Wind driven generator principal shaft supporting structure with such rolling bearing of having the retainer member, because the retainer member disposes with being stabilized, the misgivings that therefore abnormal sound or breakage take place reduce.
According to the present invention, the retainer member is by being located at the moving to internal side diameter of the outside diameter roller retainer restriction retainer member in the post portion.In addition, by being located at the moving to outside diameter of the internal side diameter roller retainer restriction retainer member in the post portion.As a result, the retainer member becomes the roller guide member, is configured in the rolling bearing with being stabilized.So, just can suppress the retainer member contacts the generation of the abnormal sound that causes or retainer member etc. with outer ring or inner ring damage.
In addition, such retainer member can be guided member by roller, therefore can be configured in the rolling bearing with being stabilized.So, outer ring and inner ring contacts minimizing.
In addition, have the wind driven generator principal shaft supporting structure of the rolling bearing that comprises such retainer member, because the retainer member disposes with being stabilized, the misgivings that therefore abnormal sound or damage take place reduce.
Another purpose again of the present invention is, a kind of generation of abnormal sound or damaged misgivings rolling bearing little, that greasy property is good is provided, stably is configured in the retainer member on the rolling bearing and possess the wind driven generator principal shaft supporting structure of such rolling bearing.
Rolling bearing of the present invention possesses: have the inner ring of lip part, along a plurality of rollers of the outer diametric plane configuration of inner ring, have a retainer of the pocket portion that is used to accommodate a plurality of rollers.And retainer is divided into a plurality of retainer members by the cutting lines that axially extends.In addition, preferred each retainer member have circular shape a pair of ring part, be configured between a pair of ring part and for forming pocket portion to axially extended a plurality of post portions and outstanding to radially inner side from the aperture surface of a pair of ring part, and with the inner ring abutting part of the lip part butt of inner ring.Preferred post portion has restriction and is housed in roller in the pocket portion to the retainer of internal diameter side shifting.
In the rolling bearing of above-mentioned formation, being limited by the inner ring lip part to moving of radially inner side of each retainer member limited by roller to moving of radial outside.Thus, the movement of the retainer in bearing when rotation is stable, can suppress the retainer member contacts the generation of the abnormal sound that causes or retainer member etc. with outer ring or inner ring damage.In addition, because the retainer member does not contact with the plane of trajectory orbital of Internal and external cycle when bearing rotates, thereby can access the good rolling bearing of lubricity.
Preferably, the retainer member is a resin system.The retainer member is compared with one-piece type retainer, small-sized and simple shape.So, by the retainer member is defined as resin system, can be easy to produce in enormous quantities by manufacturings such as injection mouldings.
Preferably, roller is conical roller.Large-size rolling bearing for using in the main shaft of above-mentioned wind-driven generator etc. owing to will bear big axial load or moment load, radial load etc., therefore is fit to the conical rolling bearing that employing forms roller conical roller.If adopt such conical rolling bearing, even when conical rolling bearing reaches large-scale, producibility is also good, simultaneously can with the retainer component stability be configured in the rolling bearing, can suppress to contact the generation of the abnormal sound that causes etc. with outer ring etc.
Retainer member of the present invention is to have the pocket portion of accommodating a plurality of rollers, the retainer member that the cutting lines that is axially extended is cut apart.Specifically be, each retainer member have circular shape a pair of ring part, be configured between a pair of ring part and for forming pocket portion to axially extended a plurality of post portions and outstanding to radially inner side from the aperture surface of a pair of ring part, and with the inner ring abutting part of the lip part butt of inner ring.
Such retainer member is because by the lip part guide member of bearing inner race, so can not contact with the plane of trajectory orbital of bearing inner race.As a result, the retainer member is not scraped the oil film of getting plane of trajectory orbital during the bearing rotation, thereby the greasy property of bearing improves.
Wind driven generator principal shaft supporting structure of the present invention, is loaded in the fixed component and the rolling bearing of rotatable supporting spindle freely at the main shaft that has that blade, an end of accepting wind-force are fixed on the blade and together rotate with blade.About rolling bearing, possesses inner ring, along a plurality of rollers of the outer diametric plane configuration of inner ring with have a retainer of the pocket portion that is used to accommodate a plurality of rollers with lip part.And retainer is divided into a plurality of retainer members by the cutting lines that axially extends.In addition, each retainer member have circular shape a pair of ring part, be configured between a pair of ring part and for forming pocket portion to axially extended a plurality of post portions and outstanding to radially inner side from the aperture surface of a pair of ring part, and with the inner ring abutting part of the lip part butt of inner ring.
The rolling bearing of above-mentioned formation, the retainer member does not contact with the plane of trajectory orbital of inner ring during owing to the bearing rotation, thereby lubricity is good.By with the bearing of such rolling bearing, can access the high wind driven generator principal shaft supporting structure of reliability as the main shaft of supporting wind power generation machine.
In addition, the moving and to be limited radially of retainer member by the lip part of inner ring.As a result, can suppress the retainer member and contact the generation of the abnormal sound that causes or the breakage of retainer member with outer ring and inner ring, can obtain the good rolling bearing of lubricity simultaneously.
In addition, be used for the bearing of supporting wind power generation machine main shaft, can obtain the high wind driven generator principal shaft supporting structure of reliability by the rolling bearing that will possess such retainer member.
Description of drawings
Fig. 1 is the sectional view when the section that comprises post portion cuts off the retainer member of one embodiment of the present invention.
Fig. 2 is the perspective view of the retainer member of one embodiment of the present invention.
Fig. 3 is one one a sectional view of the rolling bearing of expression one embodiment of the present invention.
Fig. 4 A is the sectional view of the retainer member of another embodiment of the present invention, the situation when expression is arranged alternately the 1st pocket portion and the 2nd pocket portion.
Fig. 4 B is the sectional view of the retainer member of another embodiment of the present invention, the situation when expression is not arranged alternately the 1st pocket portion and the 2nd pocket portion.
Fig. 5 is the sectional view of the conical rolling bearing of expression another embodiment of the present invention.
Fig. 6 is the diagram when the arrow C direction is seen conical rolling bearing shown in Fig. 5.
Fig. 7 is the sectional view of the D-D section of conical rolling bearing shown in Figure 5.
Fig. 8 is the diagram that a routine wind driven generator principal shaft supporting structure of rolling bearing of the present invention is adopted in expression.
Fig. 9 is the graphic side view of wind driven generator principal shaft supporting structure shown in Figure 8.
Figure 10 is the perspective view of retainer member in the past.
Figure 11 is the sectional view when the section that comprises post portion cuts off retainer member shown in Figure 10.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.Fig. 2 is the perspective view of the retainer member of expression one embodiment of the present invention.Fig. 1 is with retainer member shown in Figure 2, the sectional view when being cut off by the section shown in the arrow A-A among Fig. 2.Have again, in Fig. 1, dot a plurality of rollers that the retainer member keeps, not shown for the ease of understanding linking department 21a, 21b.
With reference to Fig. 1 and Fig. 2, retainer member 15a is included as the 22a of post portion that forms 2 the 1st 23a of pocket portion, 23c accommodating roller and 1 the 2nd 23b of pocket portion and axially extend, 22b, 22c, 22d and for linking linking department 21a, the 21b that 4 22a of post portion, 22b, 22c, 22d extend in the contour direction.Linking department 21a, 21b in the time of on being assembled into rolling bearing, form 1 ring-type retainer in order to connect a plurality of retainer member 15a etc. in the contour direction, have the curvature of regulation in the contour direction.That is to say, retainer member 15a be by the cutting lines that axially extends with one-piece type ring-type retainer, comprise the 1st and the 2nd 23a～23c of pocket portion, the shape of cutting off, cutting apart.Have again,, suppose to comprise a plurality of linking department 21a, 21b herein, but also can be 1.
At the 22a of post portion of the contour direction both sides that are positioned at the 1st 23a of pocket portion, the outside diameter of 22b, be provided with and be used for limiting the roller that remains on the 1st 23a of pocket portion outside diameter roller retainer 24a, 24b to the external diameter side shifting.By formation like this, though retainer member 15a to the internal side diameter of axle, promptly the direction of the arrow B among Fig. 1 moves, therefore outside diameter roller retainer 24a, 24b are also blocked by roller, can limit retainer member 15a moving to internal side diameter.
In addition, be positioned at and the 22b of post portion of the contour direction both sides of the 2nd 23b of pocket portion of the 1st 23a of pocket portion adjacency, the internal side diameter of 22c, be provided with and be used for limiting the roller that remains on the 2nd 23b of pocket portion internal side diameter roller retainer 25a, 25b to the internal diameter side shifting.By formation like this, even suppose the outside diameter of retainer member 15a to axle, promptly opposite direction motion with arrow B among Fig. 1, internal side diameter roller retainer 25a, 25b are also blocked by roller, therefore can limit moving to outside diameter.
In addition, be positioned at and the 22c of post portion of the contour direction both sides of the 1st 23c of pocket portion of the 2nd 23b of pocket portion adjacency, the outside diameter of 22d, be provided with and be used for limiting the roller that remains on the 1st 23c of pocket portion outside diameter roller retainer 24c, 24d to the external diameter side shifting.By formation like this, though retainer member 15a to the internal side diameter of axle, promptly the direction of the arrow B among Fig. 1 moves, outside diameter roller retainer 24c, 24d are also blocked by roller, thereby can limit retainer member 15a moving to internal side diameter.
Draw by above, though retainer member 15a to the internal diameter side shifting, the outside diameter roller retainer 24a of the 1st 23a of pocket portion, 23c, 24b, 24c, 24d are also blocked by roller, thereby can limit moving to internal side diameter.In addition, though retainer member 15a to the external diameter side shifting, internal side diameter roller retainer 25a, the 25b of the 2nd 23b of pocket portion are also blocked by roller, thereby can limit moving to outside diameter.So, the motion radially of retainer member 15a is limited by roller.By forming such formation, retainer member 15a becomes so-called roller guide member, is configured in radial position with being stabilized.
In addition, because retainer member 15a etc. are independent separately, therefore the misgivings that tilt with respect to PCD16 are arranged in rolling bearing.Yet, because adding up to, retainer member 15a has 3 the 1st pocket portions and the 2nd pocket portion, specifically be to have 2 the 1st 23a of pocket portion, 23c at the two ends of retainer member 15a, central authorities at retainer member 15a have 1 the 2nd 23b of pocket portion, therefore retainer member 15a reduces good stability with respect to the misgivings that PCD16 tilts.
Herein, the 22b of post portion between the 1st 23a of pocket portion and the 2nd 23b of pocket portion has outside diameter roller retainer 24b at its outside diameter, has internal side diameter roller retainer 25a at internal side diameter.In addition, the 22c of post portion between the 2nd 23b of pocket portion and the 1st 23c of pocket portion equally also has outside diameter roller retainer 24c at its outside diameter, has internal side diameter roller retainer 25b at internal side diameter.By formation like this, can make the 1st 23a of pocket portion, 23c and the 2nd 23b of pocket portion adjacency, can reduce the 1st and the 2nd pocket portion that comprises among the retainer member 15a as a whole simultaneously.
Fig. 3 is one one the sectional view that expression possesses the rolling bearing 11 of Fig. 1, retainer member 15a shown in Figure 2.With reference to Fig. 1, Fig. 2 and Fig. 3, rolling bearing 11 possesses outer ring 12, inner ring 13, be configured in a plurality of roller 14a between outer ring 12 and the inner ring 13, a plurality of retainer member 15a of 14b, 14c, maintenance roller 14a etc. etc.With retainer member 15b, the 15c of retainer member 15a adjacency, wide 26 relative mode with the outside of the 22a of post portion, the 22d etc. that are positioned at tip portion in the contour direction is configured in the contour direction in rolling bearing 11.By a plurality of connection combination retainer member 15a, 15b, 15c etc., form the retainer of 1 ring-type.
As mentioned above, be retainer member 15a etc. by possessing the roller guide member, in rolling bearing 11, retainer member 15a etc. is configured in radially with being stabilized.Therefore, the aperture surface 17 of the end face 27 of the radial outside of the 22a～22d of post portion among the retainer member 15a and the outer ring 12 that is positioned at outside diameter contact or the end face 28 of the radially inner side of the 22a～22d of post portion and the generation that contacts the abnormal sound that causes of the outer diametric plane 18 of the inner ring 13 that is positioned at internal side diameter can be suppressed.In addition, thereupon, retainer member 15a also reduces because of contact damaged misgivings with outer ring 12 grades.
Have, herein, retainer member 15a has 3 the 1st and the 2nd pocket portions of accommodating roller again, has the pocket portion that adds up to more than 4 but also may be prescribed as.Fig. 4 A and Fig. 4 B have 2 the 1st pocket portions and the 2nd pocket portion respectively, add up to the sectional view of the retainer member with 4 pocket portions.At first, with reference to Fig. 4 A, retainer member 31 has for forming the 32a of post portion that 2 the 1st 33a of pocket portion, 33c and 2 the 2nd 33b of pocket portion, 33d axially extend, 32b, 32c, 32d, 32e and for linking the linking department (not shown) that a plurality of post 32a of portion, 32b, 32c, 32d, 32e extend in the contour direction.At the outside diameter of the 32a of post portion of the contour direction both sides that are positioned at the 1st 33a of pocket portion, 33c, 32b, 32c, 32d, be provided with and be used for limiting the roller that remains on the 1st 33a of pocket portion, 33c outside diameter roller retainer 34a, 34b, 34c, 34d to the external diameter side shifting.In addition, at the internal side diameter of the 32b of post portion of the contour direction both sides that are positioned at the 2nd 33b of pocket portion, 33d, 32c, 32d, 32e, be provided with and be used for limiting the roller that remains on the 2nd 33b of pocket portion, 33d internal side diameter roller retainer 35a, 35b, 35c, 35d to the internal diameter side shifting.
By formation like this, with outside diameter roller retainer 34a, 34b, 34c, the 34d on the 32a of post portion of 2 the 1st 33a of pocket portion, 33c being located at the not adjacency among 4 the 1st and the 2nd 33a of pocket portion, 33b, 33c, the 33d, 32b, 32c, the 32d, restriction retainer member 31 moving to internal side diameter, with internal side diameter roller retainer 35a, 35b, 35c, the 35d on the 32b of post portion that is located at not 2 the 2nd 33b of pocket portion, 33d of adjacency, 32c, 32d, the 32e, restriction retainer member 31 moving to outside diameter.Therefore, by alternately with the restriction of 2 the 1st and the 2nd pocket portion to the moving of outside diameter and internal side diameter, can more stably dispose retainer member 31, in rolling bearing, retainer member 31 reduces more with respect to the misgivings that PCD tilts simultaneously.
In addition, shown in Fig. 4 B, retainer member 36 has 2 the 1st 37a of pocket portion, 33d and 2 the 2nd 37b of pocket portion, 37c, the available 38b of post portion of the contour direction both sides of 2 the 1st 37b of pocket portion, 37c being positioned at adjacency, the internal side diameter roller retainer on 38c, the 38d of being located at, restriction is moved to outside diameter, also can be with the outside diameter roller retainer on the 38a of post portion of the contour direction both sides of the 1st 37a of pocket portion, the 33d that are located at the both end sides that is positioned at retainer member 36,38c, 38d, the 38e, restriction is moved to internal side diameter.In this case, since can enough 2 the 1st and 2 the 2nd the restriction of pocket portion to the moving of outside diameter and internal side diameter, therefore, with above-mentioned same, can more stably dispose retainer member 36, in rolling bearing, retainer member 36 reduces more with respect to the misgivings that PCD tilts simultaneously.
Have again, in the above-described embodiment, as the roller that is housed in the retainer member, the conical roller that also can adopt the cylinder roller of cylinder shape or slowly strengthen towards axial footpath.Adopting under the situation of conical roller, the interval of the wall of in the retainer member and post portion conical roller butt also can slowly increase towards side end face, big footpath from the path side end face of conical roller.
Then, with reference to Fig. 5～Fig. 7, to the rolling bearing of another mode of execution again of the present invention, and the retainer member describe.Fig. 5 is the diagram of the rolling bearing of expression another mode of execution again of the present invention, and Fig. 6 is a diagram of seeing the retainer member shown in Fig. 5 from the arrow C direction, and Fig. 7 is the sectional view of the D-D section of Fig. 5.
With reference to Fig. 5, rolling bearing is to possess inner ring 62, outer ring (not shown), be configured in a plurality of conical roller 63 between inner ring 62 and the outer ring and have the conical rolling bearing 61 of the retainer 64 of the pocket portion that is used to accommodate a plurality of conical rollers 63.This retainer 64 is divided into a plurality of retainer member 64a by the cutting lines that axially extends ...
Fig. 6 is the enlarged view of retainer member 64a.With reference to Fig. 6, retainer member 64a has a pair of ring part 65a, 65b and is configured between a pair of ring part 65a, the 65b, for the pocket portion that is formed for accommodating conical roller 63 to axially extended a plurality of post portion 66.In mode of execution shown in Figure 6, form 3 pocket portions by 4 post portions 66, in each pocket portion, contain 1 each and every one conical roller 63.Have, the formation of other retainer member is identical with retainer member 64a again, and therefore explanation is omitted.
Fig. 7 is the sectional view of the D-D section of Fig. 5, be expression post portion 66 shape be coated with the scholar.Have, in order to simplify, the diagram of inner ring 62 and ring part 65a is omitted again.With reference to Fig. 7, the end face that forms the pocket portion of post portion 66 is the curve form along the rotation surface of conical roller 63, is provided with at its inside diameter to be used to limit the roller retainer 66a of conical roller 63 to the internal diameter side shifting.In addition, as shown in Figure 6, the width dimensions of post portion 66 strengthens from ring part 65b side towards ring part 65a side, and pocket portion forms along the trapezoidal shape of the profile of conical roller 63.
When the retainer member 64a with above-mentioned formation was assembled on the conical rolling bearing 61, inner ring abutting part 68a was connected on the big flange 62a of inner ring 62, and inner ring abutting part 68b is connected on the little flange 62b of inner ring 62.Therefore, when retainer member 64a was in position towards the sky, inner ring abutting part 68a, 68b contacted with lip part 62a, 62b, and retainer member 64a becomes inner ring flange guide member.
On the other hand, when retainer member 64a is in position towards ground, by moving of roller retainer 66a restriction retainer member 64a downward direction.Therefore, Ci Shi retainer member 64a becomes the roller guide member.
Like this, by mobile to radially inner side with inner ring lip part 62a, 62b restriction retainer member 64a, by with 63 restrictions of conical roller to the moving of radial outside, can suppress retainer member 64a contacts the generation of the abnormal sound that causes or retainer member 64a etc. with inner ring 62 and outer ring breakage.In addition, owing to do not worry that retainer member 64a scrapes the oil film of getting the Internal and external cycle plane of trajectory orbital, therefore can obtain the good rolling bearing of greasy property.
Have again, in the above-described embodiment, illustration butt joint end face 67 from the outstanding example of the post portion 66 at two ends, the left and right sides, but also be not limited to this, for example, also can form butt joint end face 67 not from the outstanding shape of the post portion 66 at two ends.But, when being post portion 66 contacting structure of each retainer member of adjacency, because 66 distortion of post portion or damaged misgivings are arranged when bearing rotate, so be preferably formed as the post portion 66 mutual discontiguous structures of the retainer member of adjacency.
In addition, in the above-described embodiment, illustration between the retainer member of adjacency, do not accommodate the example of conical roller 63, but also be not limited to this, for example, the docking part that also can be formed on the retainer member of adjacency forms pocket portion, accommodates the formation of conical roller 63.Thus, the load capacity of conical rolling bearing 61 increases.
In addition,, can form, also can select to be housed in the roller radical in each retainer member arbitrarily by the retainer member that makes up any number more than 2 about retainer 64.In addition, when having made up all retainer members,, also can between the retainer member, dispose the liner that is used for the adjusting play for landfill is formed at contour direction gap between the retainer member.
In addition, in the above-described embodiment, illustration adopt the example of the single-row conical rolling bearing 61 of conical roller 63 as roller, but the present invention also can be the conical rolling bearing of multiple row.In addition, also be applicable to the automatic self aligning roller bearing that adopts spherical roller, all rolling bearings such as cylindrical roller bearing that adopt cylinder roller.
Fig. 8 and Fig. 9 represent to adopt as main shaft supporting bearing 45 a routine wind driven generator principal shaft supporting structure of above-mentioned rolling bearing.The shell 43 of the gondola 42 of the critical piece of supporting spindle supporting structure, is arranged on the supporting station 40 by horizontal rotation via panoramatic head bearing 41 freely in a high position.The blade 47 fixing main shafts of at one end going up 46 of wind-force will be accepted, in the shell 43 of gondola 42, be rotated freely via the main shaft supporting bearings 45 in the bearing housing 44 of packing into and supporting, the other end of main shaft 46 is connected with speed increaser 48, and the output shaft of speed increaser 48 combines with the rotor shaft of generator 49.Gondola 42 can be by revolution with motor 50, via retarder 51 with angle rotary arbitrarily.
The main shaft supporting bearing 45 that is assembled in the bearing housing 44 is rolling bearings of one embodiment of the present invention, possesses a plurality of rollers and the retainer that is used to keep a plurality of rollers.Above-mentioned retainer is by being divided into a plurality of retainer members towards the cutting lines that axially extends.Each retainer member has a plurality of post portions of axially extending and forming the 1st and the 2nd pocket portion of accommodating roller and for linking the linking department that this a plurality of post portion extends in the contour direction.Post portion has and is used to limit the roller that is housed in the 1st pocket portion to the outside diameter roller retainer of external diameter side shifting be used to limit the roller that is housed in the 2nd pocket portion internal side diameter roller retainer to the internal diameter side shifting.
Main shaft supporting bearing 45 supportings one end is fixed with the main shaft 46 of the blade 47 of accepting big wind-force, therefore bears big load.So, main shaft supporting bearing 45 itself also needs to maximize.Owing to the rolling bearing that has alienable retainer member by formation, producibility, operability, the assembling performance of retainer are improved, so the producibility of rolling bearing itself also improve herein.In addition, because above-mentioned retainer member is the roller guide member, and stably is configured in radially, therefore with minimizings that contact of outer ring or inner ring etc., can suppress to follow the generation of the abnormal sound of contact, the misgivings that contact the breakage that causes simultaneously also reduce.
In addition, as the main shaft supporting bearing 45 that is assembled in the bearing housing 44, also can adopt the rolling bearing of the another embodiment of the invention of Fig. 5 for example～shown in Figure 7.
Main shaft supporting bearing 45 supportings one end is fixed with the main shaft 46 of the blade 47 of accepting big wind-force, therefore bears big load.So, main shaft supporting bearing 45 itself also needs to maximize.Owing to the rolling bearing that has alienable retainer member by formation, producibility, operability, the assembling performance of retainer are improved, so the producibility of rolling bearing itself also improve herein.
In addition, rolling bearing as above-mentioned formation, owing to can prevent to follow the generation of the abnormal sound that the retainer member contact with Internal and external cycle or the breakage of retainer member, improve the greasy property of conical rolling bearing simultaneously, so can obtain the high wind driven generator principal shaft supporting structure of reliability.
In addition, in the above-described embodiment, the end of the contour direction of retainer member is cut apart so that become post portion, but also is not limited to this, also can cut apart at linking department.In such cases, the retainer member can be connected with the retainer member of adjacency at linking department.
Have again, even in that such rolling bearing with retainer member 15a etc. is formed under the large-scale situation, because miniaturizations such as retainer member 15a, and simple shape, therefore by its material is defined as resin system,, can be easy to produce with manufacturings such as injection mouldings.By formation like this, can improve and make producibility.
In addition, in the above-described embodiment, contained linking department 21a, 21b and ring part 65a, 65b constitute in the mode of the curvature that has regulation in advance among the retainer member 15a etc.But, also can constitute linking department 21a, 21b and ring part 65a, 65b with parts with flexual resin etc., make it have elasticity in the contour direction, form the straight shape of the curvature that does not have regulation during fabrication, in the time of on being assembled in rolling bearing, also can make its ground of curvature with regulation assembling.By formation like this, during fabrication, retainer member 15a etc. can be formed simpler shape, make producibility etc. better.
More than, with reference to description of drawings embodiments of the present invention, but the present invention is not limited to illustrated mode of execution.For illustrated mode of execution, can be in the scope identical with the present invention, or in the impartial scope, implement multiple correction or distortion.
Retainer member of the present invention can stably be configured in the rolling bearing, and contacting of rolling bearing of the present invention and retainer member and outer ring etc. is few, therefore can be used for retainer member and the rolling bearing that requirement suppresses abnormal sound effectively.
In addition, wind driven generator principal shaft supporting structure of the present invention owing to comprise the rolling bearing of the retainer member that can stably dispose Splittable, therefore can be effectively applied to require large-scale, as to suppress abnormal sound purposes.
Retainer member of the present invention can be advantageously used in the large-scale rolling bearings such as bearing of supporting wind power generation machine main shaft.
Claims (13)
1. a rolling bearing possesses a plurality of rollers and the retainer that keeps described a plurality of rollers, wherein,
Described retainer is divided into a plurality of retainer members by the cutting lines that axially extends,
Each described retainer member has a plurality of post portions of axially extending and forming the 1st and the 2nd pocket portion of accommodating roller and extends and link the linking department of this a plurality of post portion in the contour direction,
Described post portion has and is used to limit the roller that is housed in described the 1st pocket portion to the outside diameter roller retainer of external diameter side shifting be used to limit the roller that is housed in described the 2nd pocket portion internal side diameter roller retainer to the internal diameter side shifting.
2. rolling bearing as claimed in claim 1, wherein, the post portion between described the 1st pocket portion and described the 2nd pocket portion has described outside diameter roller retainer and described internal side diameter roller retainer.
3. rolling bearing as claimed in claim 1, wherein, described retainer member has 3 pocket portions at least.
4. rolling bearing as claimed in claim 1, wherein, described retainer member is resinous.
5. rolling bearing as claimed in claim 1, wherein, described roller is conical roller.
6. retainer member is used to keep a plurality of rollers and is cut apart by the cutting lines that axially extends, wherein,
Described retainer member has a plurality of post portions of axially extending and forming the 1st and the 2nd pocket portion of accommodating roller and extends and link the linking department of this a plurality of post portion in the contour direction,
Described post portion has and is used to limit the roller that is housed in described the 1st pocket portion to the outside diameter roller retainer of external diameter side shifting be used to limit the roller that is housed in described the 2nd pocket portion internal side diameter roller retainer to the internal diameter side shifting.
7. wind driven generator principal shaft supporting structure has that blade, an end of accepting wind-force are fixed on the described blade and the main shaft that together rotates with blade and be loaded in the fixed component and the rolling bearing of described main shaft is supported in rotation freely, wherein,
Described rolling bearing possesses a plurality of rollers and keeps the retainer of described a plurality of rollers,
Described retainer is divided into a plurality of retainer members by the cutting lines that axially extends,
Each described retainer member has a plurality of post portions of axially extending and forming the 1st and the 2nd pocket portion of accommodating roller and extends and link the linking department of this a plurality of post portion in the contour direction,
Described post portion has and is used to limit the roller that is housed in described the 1st pocket portion to the outside diameter roller retainer of external diameter side shifting be used to limit the roller that is housed in described the 2nd pocket portion internal side diameter roller retainer to the internal diameter side shifting.
8. rolling bearing, wherein,
Possess: have the inner ring of lip part, along a plurality of rollers of the outer diametric plane configuration of described inner ring, have a retainer of the pocket portion that is used to accommodate described a plurality of rollers;
Described retainer is divided into a plurality of retainer members by the cutting lines that axially extends;
Thereby each described retainer member have circular shape a pair of ring part, be configured between described a pair of ring part and extend axially and form the inner ring abutting part of the described lip part butt of a plurality of post portions of described pocket portion and and described inner ring outstanding to radially inner side from the aperture surface of described a pair of ring part.
9 rolling bearings as claimed in claim 8, wherein, described post portion has and is used for limiting the described roller that the is housed in described pocket portion roller retainer to the internal diameter side shifting.
10. rolling bearing as claimed in claim 8, wherein, described retainer member is resinous.
11. rolling bearing as claimed in claim 8, wherein, described roller is conical roller.
12. a retainer member has the pocket portion of accommodating a plurality of rollers, the cutting lines that is axially extended is cut apart, wherein,
Thereby each described retainer member have circular shape a pair of ring part, be configured between described a pair of ring part and extend axially and form the inner ring abutting part of the lip part butt of a plurality of post portions of described pocket portion and and bearing inner race outstanding to radially inner side from the aperture surface of described a pair of ring part.
13. a wind driven generator principal shaft supporting structure has that blade, an end of accepting wind-force are fixed on the described blade and the main shaft that together rotates with blade and be loaded in the fixed component and the rolling bearing of described main shaft is supported in rotation freely, wherein,
Described rolling bearing possesses inner ring with lip part, along a plurality of rollers of the outer diametric plane configuration of described inner ring, have a retainer of the pocket portion that is used to accommodate described a plurality of rollers;
Described retainer is divided into a plurality of retainer members by the cutting lines that axially extends;
Thereby each described retainer member have circular shape a pair of ring part, be configured between described a pair of ring part and extend axially and form the inner ring abutting part of the described lip part butt of a plurality of post portions of described pocket portion and and described inner ring outstanding to radially inner side from the aperture surface of described a pair of ring part.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005368588A JP4342512B2 (en) | 2005-12-21 | 2005-12-21 | Rolling bearings, cage segments, and main shaft support structure for wind power generators |
| JP368588/2005 | 2005-12-21 | ||
| JP030088/2006 | 2006-02-07 | ||
| JP2006030088A JP2007211833A (en) | 2006-02-07 | 2006-02-07 | Rolling bearing, retainer segment, and structure for supporting main shaft of wind power generator |
| PCT/JP2006/322266 WO2007072637A1 (en) | 2005-12-21 | 2006-11-08 | Rolling bearing, retainer segment, and main shaft support structure for wind-driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101341349A true CN101341349A (en) | 2009-01-07 |
| CN101341349B CN101341349B (en) | 2012-11-21 |
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ID=38297354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800478464A Active CN101341349B (en) | 2005-12-21 | 2006-11-08 | Rolling bearing, retainer segment, and main shaft support structure for wind-driven generator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4342512B2 (en) |
| CN (1) | CN101341349B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102705369A (en) * | 2010-10-05 | 2012-10-03 | 株式会社捷太格特 | Roller bearing cage and tapered roller bearing |
| CN103354876A (en) * | 2010-12-07 | 2013-10-16 | Skf公司 | Cage segment of a tapered-roller bearing, and tapered-roller bearing |
| CN104105893A (en) * | 2012-12-21 | 2014-10-15 | 日本精工株式会社 | Rolling bearing |
| CN104350297A (en) * | 2012-05-07 | 2015-02-11 | Skf公司 | Cage segment of tapered roller bearing and tapered roller bearing |
| CN105164438A (en) * | 2013-04-11 | 2015-12-16 | 斯凯孚公司 | Rolling bearing with rolling bodies disposed in a plurality of cage segments |
| CN111868399A (en) * | 2018-03-05 | 2020-10-30 | Ntn株式会社 | Roller bearing and roller bearing retainer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010005007A1 (en) * | 2008-07-08 | 2010-01-14 | 日本精工株式会社 | Resin retainer for tapered roller bearing, and tapered roller bearing |
| DE102010028581A1 (en) | 2010-05-05 | 2011-11-10 | Robert Bosch Gmbh | eccentric |
| JP2015034578A (en) * | 2013-08-08 | 2015-02-19 | 株式会社ジェイテクト | Tapered roller bearing |
| EP3000797B1 (en) | 2014-09-24 | 2019-11-27 | Rolls-Royce Corporation | Method for making ceramic matrix composite articles using gelling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10246825B4 (en) * | 2002-10-08 | 2019-02-14 | Aktiebolaget Skf | Cage for a rolling bearing |
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2005
- 2005-12-21 JP JP2005368588A patent/JP4342512B2/en active Active
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2006
- 2006-11-08 CN CN2006800478464A patent/CN101341349B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705369A (en) * | 2010-10-05 | 2012-10-03 | 株式会社捷太格特 | Roller bearing cage and tapered roller bearing |
| CN103354876A (en) * | 2010-12-07 | 2013-10-16 | Skf公司 | Cage segment of a tapered-roller bearing, and tapered-roller bearing |
| CN103354876B (en) * | 2010-12-07 | 2016-05-04 | Skf公司 | Taper roll bearing |
| CN104350297A (en) * | 2012-05-07 | 2015-02-11 | Skf公司 | Cage segment of tapered roller bearing and tapered roller bearing |
| CN104105893A (en) * | 2012-12-21 | 2014-10-15 | 日本精工株式会社 | Rolling bearing |
| CN105164438A (en) * | 2013-04-11 | 2015-12-16 | 斯凯孚公司 | Rolling bearing with rolling bodies disposed in a plurality of cage segments |
| CN105164438B (en) * | 2013-04-11 | 2018-08-31 | 斯凯孚公司 | Rolling bearing with the rolling element being arranged in multiple holding tower sections |
| CN111868399A (en) * | 2018-03-05 | 2020-10-30 | Ntn株式会社 | Roller bearing and roller bearing retainer |
| CN111868399B (en) * | 2018-03-05 | 2022-08-23 | Ntn株式会社 | Roller bearing and roller bearing retainer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4342512B2 (en) | 2009-10-14 |
| JP2007170538A (en) | 2007-07-05 |
| CN101341349B (en) | 2012-11-21 |
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