CN209262080U - Retainer - Google Patents
Retainer Download PDFInfo
- Publication number
- CN209262080U CN209262080U CN201821606287.2U CN201821606287U CN209262080U CN 209262080 U CN209262080 U CN 209262080U CN 201821606287 U CN201821606287 U CN 201821606287U CN 209262080 U CN209262080 U CN 209262080U
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- China
- Prior art keywords
- column portion
- circumferential
- retainer
- column
- opposed faces
- Prior art date
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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
- F16C33/49—Cages for rollers or needles comb-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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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
- F16C19/38—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 two or more rows of 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
- F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
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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
- F16C33/56—Selection of substances
Abstract
The utility model provides a kind of retainer, is able to suppress the manufacturing cost that can be used for the comb shape retainer of the resin of multiple row roller bearing, reduces deformation when injection moulding.Retainer (10) includes single annular portion (11)；From one side multiple column portions (12) that side extends in the axial direction of annular portion (11)；And from the another side of annular portion (11) in the axial direction the other side extend multiple column portions (12).The column portion of two sides can be configured in the circumferential with same phase.
Description
Technical field
The utility model relates to the retainers of the resin for roller bearing, more particularly, it relates to be suitable for as automatic aligning
Roller bearing has the retainer of the multiple row roller bearing of two column rollers like that.
Background technique
As the retainer for multiple row roller bearing, it is known that a kind of so-called " comb shape retainer ".Comb shape retainer by
Single annular portion and the multiple column portions extended from the side of annular portion are constituted.
The annular portion of comb shape retainer with single annular portion, each column portion are able to use the mould being divided into two along axial direction
Tool integrally manufactures retainer entirety by the way that molten resin to be injected into the injection moulding of die cavity of mold.
Existing comb shape retainer only has multiple column portions in axial side relative to annular portion, in the opening and closing direction of mold
(axial direction) is asymmetric, therefore inprocess shrinkage becomes uneven.In order to inhibit to be proposed by the uneven caused retainer deformation
Comb shape retainer is formed using the mold for being contemplated to inprocess shrinkage, becomes retainer shape appropriate after inprocess shrinkage (specially
Sharp document 1).
Patent document 1: No. 4537920 bulletins of Japanese Patent No.
However, in deformation suppressing method disclosed in patent document 1, it is sometimes desirable to be repeated and explore inprocess shrinkage
The mold design of the height of trial-production, the numerical analysis of manifestation mode, it is unfavorable to become in terms of cost.
Utility model content
In view of above-mentioned background, the utility model project to be solved is the resin for inhibiting to can be used in multiple row roller bearing
The manufacturing cost of the comb shape retainer of system reduces deformation when injection moulding.
In order to realize the above subject, the utility model is configured to following retainer, comprising: single annular portion；From above-mentioned circle
The one side of ring portion multiple column portions that side extends in the axial direction；And the other side is prolonged in the axial direction from the another side of above-mentioned annular portion
The multiple column portions stretched, circumferentially adjacent above-mentioned column portion become the pocket hole that can store roller each other, and above-mentioned column portion has
It can be with the opposed faces of the rolling face contact of above-mentioned roller, above-mentioned annular portion, multiple column portions of above-mentioned side and above-mentioned another
Multiple column portions of side are integrally formed using resin.
According to above structure, become the retainer shape that multiple column portions extend from the axial sides of annular portion, therefore will be across
The volume of more annular portion is set as identical, can mitigate the asymmetry of retainer in the axial direction.Utilizing resin integrally as a result,
When forming the injection moulding of retainer entirety, it is able to suppress the deformation of the retainer with inprocess shrinkage, therefore guarantor can be reduced
The deformation of holder.In addition, only configuring multiple column portions by the two sides in annular portion just realizes that above-mentioned deformation inhibits, therefore can
It avoids the mold design of height and inhibits manufacturing cost.In addition, being formed with two column pocket holes in retainer, therefore can also store
Multiple row roller.Like this, according to above structure, it is able to suppress the comb shape retainer that can be used for the resin of multiple row roller bearing
Manufacturing cost, reduce the deformation that generates due to injection moulding.
It is preferred that multiple column portions of above-mentioned side and multiple column portions of the above-mentioned other side are configured in the circumferential with same phase.This
Sample can make the shape across the retainer of annular portion symmetrical in the axial direction, and thereby, it is possible to more inhibit guarantor when injection moulding
The deformation of holder.
Additionally, it is preferred that the above-mentioned opposed faces in above-mentioned column portion have undercut, above-mentioned column portion has non-undercut, which cuts
Portion is recessed in a manner of the circumferential inboard formation space in above-mentioned undercut.Here, undercut is equivalent to retainer from mold
In die sinking direction (axial direction) by the surface portion of jam when taking-up, non-undercut is equivalent in die sinking direction not by the surface of jam
Part.In such manner, it is possible to which in column portion, the undercut of opposed faces wall thickness is thinned, to have column portion soft, and thereby, it is possible to make to be opened
When the taking-up by force of mold become easy, be able to suppress the deformation of retainer when injection moulding.
Additionally, it is preferred that can will be made of convex surface roller for the retainer of self-aligning roller bearing
Above-mentioned roller is accommodated in above-mentioned pocket hole, and the above-mentioned opposed faces in above-mentioned column portion include concave part, has the rolling along above-mentioned roller
The shape in dynamic face；And face is retreated, have with the front end side for tending to above-mentioned column portion in the axial direction and gradually in the circumferential
The shape of rolling surface far from above-mentioned roller, the outside diameter in the lateral column portion of cardinal extremity of the above-mentioned concave part in above-mentioned column portion and interior
Diameter side extends and the internal side diameter in the lateral column portion in the front end in the column portion extends, the outer diameter of above-mentioned retrogressing face and above-mentioned column portion
The front end in face, above-mentioned concave part and the column portion is continuous.In self-aligning roller bearing, in order to make convex surface roller when operating
With the motion stability of retainer, it is good to make to reduce the sound of bearing, the function of vibration, preferably as far as possible by opposed faces be set as along
The shape of the rolling surface of convex surface roller.On the other hand, in order to inhibit retainer deformation when injection moulding, preferably as far as possible not right
It sets face and forms undercut.If being in the outer diameter in the lateral column portion of cardinal extremity in column portion along the concave part of the shape of the rolling surface of roller
Side and internal side diameter extend and in the biggish ranges that the internal side diameter in the lateral column portion in the front end in column portion extends, then can be real well
Existing above-mentioned function.On the other hand, if in the axial direction tend to column portion front end side and gradually in the circumferential far from roller
The retrogressing face of the shape of rolling surface is continuous with the outer diameter face, concave part and the front end in column portion in column portion, then can pass through retrogressing
Face, which mitigates or eliminates to sink, cuts shape, can be realized the inhibition of retainer deformation.That is, can be realized the reality for taking into account above-mentioned function
The inhibition now deformed with retainer.
More particularly, the above-mentioned retrogressing face in above-mentioned column portion can respectively with the outer diameter face in the column portion and front end
Local continuous.In this way, on the boundary of the front end on boundary and opposed faces and column portion between the outer diameter face and opposed faces in column portion,
It is remaining to be able to maintain that the size of the minimum clearance between above-mentioned boundary and rolling surface far from the part of the rolling surface of roller,
So the motion stability of the roller and retainer when operating can be made.
It is preferably formed with channel-shaped space, the circumferential central portion which passes through above-mentioned column portion axially extends and in diameter
Outer diameter face upwards away from the column portion has depth, between the above-mentioned opposed faces of the circumferential two sides of the internal side diameter in above-mentioned column portion it is circumferential away from
From the circumferential distance being set to from the above-mentioned channel-shaped space of the outside diameter in above-mentioned column portion to above-mentioned opposed faces 75% or more and
125% range below.It will not be in the outside diameter and internal diameter in column portion in such manner, it is possible to influence inprocess shrinkage caused by opposed faces
Side differs widely, to be better able to realize that the deformation of opposed faces inhibits.
The utility model can occasionally inhibit the comb that can be used for the resin of multiple row roller bearing by the use of above structure
The manufacturing cost of shape retainer, and reach the deformation for reducing and generating due to injection moulding.
Detailed description of the invention
The perspective view of the appearance of retainer involved in first embodiment Fig. 1 shows the utility model.
Fig. 2 is the vertical profile main view for indicating to have the multiple row roller bearing of the retainer of Fig. 1.
Fig. 3 is the right view of the retainer of Fig. 1.
Fig. 4 is the main view of the retainer of Fig. 1.
Fig. 5 is the cross-sectional view of the V-V line in Fig. 3.
Fig. 6 is the cross-sectional view of the line VI -- VI in Fig. 4.
Fig. 7 is the cross-sectional view of the VII-VII line in Fig. 4.
Fig. 8 is the enlarged drawing near the pocket hole of Fig. 3.
Fig. 9 is the perspective view for indicating the appearance of retainer involved in the second embodiment of the utility model.
Figure 10 is the right view of the retainer of Fig. 9.
Figure 11 is the main view of the retainer of Fig. 9.
Figure 12 is the cross-sectional view of the XII-XII line in Figure 10.
Figure 13 is the perspective view for indicating the appearance of retainer involved in the third embodiment of the utility model.
Figure 14 is the right view of the retainer of Figure 13.
Figure 15 is the main view of the retainer of Figure 13.
Figure 16 is the cross-sectional view of the XVI-XVI line in Figure 15.
Figure 17 is the cross-sectional view of the XVII-XVII line in Figure 15.
Figure 18 is the perspective view for indicating the appearance of retainer involved in the 4th embodiment of the utility model.
Figure 19 is the right view of the retainer of Figure 18.
Figure 20 is the main view of the retainer of Figure 18.
Figure 21 is the cross-sectional view of the XXI-XXI line in Figure 19.
Figure 22 is the cross-sectional view of the XXII-XXII line in Figure 20.
Figure 23 is the cross-sectional view of the XXIII-XXIII line in Figure 20.
Figure 24 is the enlarged drawing near the pocket hole of Figure 19.
Figure 25 is to contain the enlarged drawing of the state of roller in the pocket hole of Figure 18.
Specific embodiment
It is illustrated based on first embodiment of the FIG. 1 to FIG. 8 to an example as the utility model.
Retainer 10 shown in FIG. 1 is by single annular portion 11, from the one side of annular portion 11, side extends in the axial direction
Multiple column portions 12 and the portion of the comb shape constituted from the another side of annular portion 11 multiple column portions 12 that the other side extends in the axial direction
Part.
Here, " axial direction " refers to the direction of the central axis (illustration omitted) along retainer.In addition, by in retainer
The vertical direction of mandrel is known as " radial direction ", will be known as " circumferential direction " around the circumferencial direction of the central axis of retainer.A left side in Fig. 2, Fig. 4
Right direction is equivalent to axial direction, and the up and down direction in Fig. 2, Fig. 4 is equivalent to radial direction.
As shown in Fig. 1, Fig. 3 and Fig. 4, the annular portion 11 of retainer 10 is by retainer part continuous on circumferential complete cycle
It constitutes.Column portion 12 from annular portion 11 towards the axial retainer part with overhang by constituting.The shape of annular portion can be appropriate
Ground changes.
It is located at the sum in the column portion 12 of axial side relative to annular portion 11 and is located at relative to annular portion 11 axial another
The sum in the column portion 12 of side is identical quantity.Retainer 10 is to have rotation pair corresponding with the quantity in column portion 12 in the circumferential
The shape of title property.
With pass through the imaginary sagittal plane in the axial center of annular portion 11 be boundary retainer 10 is divided into two consider when,
Identical volume is set to positioned at the retainer half portion of axial side, with the retainer half portion for being located at the axial other side.
Annular portion 11 is integrally formed with all column portions 12 using resin.Retainer 10 is formed by injection moulding.
In addition, the mold used in the injection moulding is made of the former for carrying out two segmentations in the axial direction with formpiston, in axial direction
On the common mold that is opened and closed.
As above-mentioned resin, such as enumerates and resin obtained by glass fibre, carbon fiber is added to PA (polyamide) 66,46,
But it can also use PPS (polyphenylene sulfide), PEEK (polyether-ether-ketone).
Circumferentially adjacent column portion 12 becomes the pocket hole (space) 13 that can store roller 20 each other.Pocket hole 13 by
The side surface part 14 of annular portion 11 is formed with the circumferentially adjacent mutual opposed faces 15 in column portion 12.
The opposed faces 15 in column portion 12 by the rolling surface 21 in the circumferential towards roller 20 column portion 12 surface portion and be
The surface portion that can be contacted with rolling surface 21 is constituted.Column portion 12 is by symmetrical configuration in the circumferential in the circumferential direction in the column portion 12
Two sides have opposed faces 15.
As shown in Fig. 2, retainer 10 is the retainer of self-aligning roller bearing.Automatic aligning roller shown in Fig. 2
Bearing has: inner ring 30, with multiple row track 31；Outer ring 40, with single spherical surface track 41；Multiple row roller 20,
It is rolled between spherical surface track 41 and track 31,31；And retainer 10, keep circumferentially-spaced between each column roller 20.
Roller 20 is made of convex surface roller.Convex surface roller has rolling surface 21 and the rolling of convex-shaped (also referred to as tubbiness)
Sub- end face 22.The rolling surface 21 of roller 20 can pass through a part and spherical surface track 41 and track in the direction roller centre axis Cr
31 contacts.
Self-aligning roller bearing (saves sketch map relative to the central axis of outer ring 40 in the central axis (illustration omitted) of inner ring 30
Show) relative tilt when, rotated by multiple row roller 20, played inner ring 30 between multiple row track 31,31 and spherical surface track 41
With outer ring 40 to the aligning performance coaxially guided.In addition, in fig. 2 it is shown that inner ring 30, outer ring 40 and retainer 10 are along coaxial
The state (state that 0 ° of aligning angle) of configuration.
As shown in Figure 1 and Figure 2, accommodate to pocket hole 13 roller 20 with by roller centre axis Cr relative in retainer 10
The posture of spindle tilt rotates between inner ring 30 and outer ring 40.
When assembling self-aligning roller bearing assembling, for following construction: by retainer 10 and 30 arranged coaxial of inner ring,
And roller 20 is received from retainer outside diameter in the state of making two column pocket holes and the inner ring 30 opposed radially of retainer 10
It is contained in each pocket hole.
The opposed faces 15 in column portion 12 shown in FIG. 1 are that can prevent from being received into the roller 20 in pocket hole 13 to retainer outer diameter
The shape that side falls off.The anti-drop function is required according to the case where above-mentioned assembling.
In addition, the opposed faces 15 in column portion 12 become shape corresponding with the posture of roller 20 shown in Fig. 2.Retainer 10
The side surface part 14 of annular portion 11 becomes aspectant on the direction of roller centre axis Cr with roller end face 22 in a state of fig. 2
It is planar.During bearing operation, retainer 10 by the opposed faces 15 in column portion 12 and the contact of the rolling surface of roller 20 by
It radially guides, and is axially guided by the side surface part of annular portion 11 14 with the contact of roller end face 22.In order to make to roll
The motion stability of son 20 and retainer 10, and make to reduce the sound of self-aligning roller bearing, the function of vibration good, it is opposed
Face 15 is set as the shape with area as big as possible along the rolling surface 21 of roller 20.
As shown in Figure 1, shown in Figure 5, the opposed faces 15 are from the base end part in column portion 12 continuously to front end.In addition, the base in column portion 12
End is made of the borderline part with annular portion 11.The front end in column portion 12 is by portion farthest away from annular portion 11 in the axial direction
Divide and constitutes.The front end in column portion 12 is at along the planar of radial direction.
The base end part of the opposed faces 15 in column portion 12 becomes the turning R shape being connected with the side surface part 14 of annular portion 11.As Fig. 5~
Shown in Fig. 8, the part of the front end of the base end part slave opposed faces 15 in opposed faces 15 to column portion 12 is by having along roller 20
Rolling surface 21 shape concave part 15a and constituted along the circular arc face 15b along axial imaginary cylinder face.Concave part
15a and circular arc face 15b is continuous in the radial whole region of opposed faces 15 respectively.
As shown in Figure 1 and Figure 2, when the roller 20 for the posture for choosing the standard in design is with the central position of roller centre axis Cr
When considering the shape of opposed faces 15 on the basis of the state in the center in pocket hole 13, Fig. 5, concave part 15a shown in Fig. 8 are will be recessed
Facial 15a is on the section after arbitrary radial position circumferentially cutting along the curved of the rolling surface 21 of the roller 20 (ginseng
According to Fig. 5), and be also by concave part 15a on the section after arbitrary axial position radially cutting also along the roller 20
Rolling surface 21 curved (referring to Fig. 6, Fig. 7).
In addition, the concave part 15a rolling surface 21 to compared to the roller 20 under said reference state continuous in the axial direction is most
The position (referring to Fig.1, Fig. 5) of front end of the big outer diameter part closer to column portion 12.In concave part 15a compared to the rolling surface 21
Maximum outside diameter portion closer to column portion 12 front end part and be positioned at (logical compared to the imaginary circle conical surface comprising roller centre axis
The circular conical surface crossing the roller centre axis Cr mono- week for circumferentially surrounding Fig. 2 and describing) part more by the outside diameter in column portion 12 is suitable
In undercut (undercut part) (referring to Fig. 6, Fig. 7).
Circular arc face 15b is continuous between the front end and concave part 15a in column portion 12, but due to being surface axially
Portion, therefore it is not equivalent to undercut.
As shown in Fig. 1, Fig. 6~Fig. 8, column portion 12 has non-undercut (non-undercut part) 16, non-undercut
16 are recessed in a manner of the circumferential inboard formation space for the undercut for being included in concave part 15a.
Non- undercut 16 forms the channel-shaped space axially extended in a manner of the overall length throughout column portion 12.By non-undercut
The 16 channel-shaped spaces formed pass through the circumferential central portion in column portion 12, and radially the outer diameter face 17 far from column portion 12 and have deep
Degree.In addition, the channel-shaped space is V-arrangement on the arbitrary imaginary sagittal plane intersected with non-undercut 16.
Part that the outer diameter face 17 in column portion 12 is included by periphery in the surface in column portion 12, retainer 10 and be along
The part of circumferential shape is constituted.
Here, the circumferential distance between the opposed faces 15 of the circumferential two sides of the internal side diameter in column portion 12 is (referring to the L in Fig. 61) quilt
It is set as the circumferential distance from the channel-shaped space (non-undercut 16) of the outside diameter in column portion 12 to opposed faces 15 (referring in Fig. 6
L2) the range below of 75% or more and 125%.The range is full on the arbitrary imaginary sagittal plane intersected with column portion 12
Foot.The internal side diameter in column portion 12 and the boundary of outside diameter are in the radical length two in column portion 12 on the imaginary sagittal plane of meaning in office
On the imaginary circumference of equal part.
In the cutting end surface of Fig. 6, circumferential distance between opposed faces 15 be channel-shaped space (non-undercut 16) with it is opposed
100% or so length of the circumferential distance between face 15.In addition, the circumferential direction in the cutting end surface of Fig. 7, between opposed faces 15
80% or so length of circumferential distance of the distance between channel-shaped space (non-undercut 16) and opposed faces 15.In addition, occurring
On the front end (boundary with the front end face in column portion 12) of opposed faces 15 in fig. 8, the circumferential distance between opposed faces 15 is slot
75% length of the circumferential distance between shape space (non-undercut 16) and opposed faces 15.In addition, there is in fig. 8 opposed
On the base end part (boundary with annular portion 11) in face 15, circumferential distance between opposed faces 15 be channel-shaped space (non-undercut 16) with
125% length of the circumferential distance between opposed faces 15.
Retainer 10 shown in FIG. 1 is retainer as described above, becomes multiple column portions 12 axial two from annular portion 11
The retainer shape that side extends, therefore will be formed as identical (by the retainer half portion of axial side across the volume of annular portion 11
Be formed as identical with the volume of the retainer half portion of the axial other side), the asymmetry of retainer 10 can be mitigated in the axial direction.
As a result, when with resin by the integrally integrally formed injection moulding of retainer 10, it is able to suppress the holding with inprocess shrinkage
The deformation of device 10, therefore the deformation of the retainer 10 when injection moulding can be reduced.In addition, only by the two of annular portion 11
Side configures multiple column portions 12, just realizes that above-mentioned deformation inhibits, therefore can be avoided the mold design of height and inhibit retainer
10 manufacturing cost.In addition, being formed with two column pocket holes 13 in retainer 10, therefore it can also store multiple row roller 20.In this way, protecting
Holder 10 be able to suppress can the resin used in multiple row roller bearing as self-aligning roller bearing comb shape protect
The manufacturing cost of holder reduces deformation caused by injection moulding.
In addition, as shown in Figure 6, Figure 7, retainer 10 has the circumferential inboard shape with column portion 12 in the undercut of opposed faces 15
The non-undercut 16 being recessed at the mode in space, therefore the wall thickness of the undercut for the opposed faces 15 that can be thinned in column portion 12 makes it
With flexibility.Therefore, it when die sinking, is easily scratched to the circumferential center side in column portion 12 by the undercut of the opposed faces 15 of mold compresses
Song, so that the taking-up by force of mold becomes easy.The change of retainer 10 when retainer 10 is able to suppress injection moulding as a result,
Shape.
In addition, the week as shown in Fig. 6, Fig. 8, in retainer 10 shown in FIG. 1, between the opposed faces 15 of the internal side diameter in column portion 12
To distance L1The circumferential distance L being set between the channel-shaped space (non-undercut 16) of the outside diameter in column portion 12 and opposed faces 152's
75% or more and 125% range below, therefore it is able to suppress the variation sharply of the wall thickness at the circumferential inboard of opposed faces 15,
Inprocess shrinkage will not differ widely on influence caused by opposed faces 15 in the outside diameter in column portion 12 with internal side diameter, be better able to realize
The deformation of opposed faces 15 inhibits.
It is illustrated based on second embodiment of Fig. 9~Figure 12 to the utility model.In addition, hereinafter, only narration and the
The difference of one embodiment uses identical important document name to corresponding constitutive requirements, especially continues to same inscape
Use identical appended drawing reference.
Retainer 50 shown in Fig. 9~Figure 12 is different from the first embodiment in the following areas, i.e., from annular portion 11 to axis
To side extend multiple column portions 12, with from annular portion 11 in the axial direction the other side extension multiple column portions 12 in the circumferential with identical
Phase configuration.
The cast gate (position that gate vestiges 51 are shown in FIG. 9) of injecting resin is configured in the circle between two colonnade portions 12
The circumferential central portion of the aperture surface of ring portion 11.Between the column portion 12 18 in 9 at, circumferentially with it is equally spaced configuration pour
Mouthful, thus the weld seam that the resin projected is mutually collided and formed is generated in the circumferential center in the column portion 12 that cast gate is not configured.
Retainer 50 is symmetrical in the axial direction (that is, the retainer of axial side due to the retainer shape across annular portion 11
Half portion and the retainer half portion of the axial other side are symmetric figure in the axial direction), therefore can more inhibit guarantor when injection moulding
The deformation of holder 50.
It is illustrated based on third embodiment of Figure 13~Figure 17 to the utility model.
And first embodiment retainer 60 shown in Figure 13~Figure 17 is different from the first embodiment in the following areas, i.e.,
It compares, non-undercut 61 is in circumferential direction and is radially formed larger.
The non-undercut 61 in column portion 62 has groove bottom 63 circumferentially.Groove bottom 63 is located at the outer diameter face than column portion 62
64 positions central close to the radial direction in column portion 62.The circumferential lengths L of non-undercut 613It is set as the outside diameter more than column portion 12
Circumferential distance L between channel-shaped space (non-undercut 61) and opposed faces 1522 times of size.Therefore, the internal side diameter in column portion 62
Opposed faces 15 between circumferential distance L1Compared between the channel-shaped space (non-undercut 61) of the outside diameter in column portion 62 and opposed faces 15
Circumferential distance L2It is obvious big, it is set to 2 times or more.
As described above, retainer 60 is formed in circumferential and radially bigger non-undercut 61, therefore with the
One embodiment is compared, and the wall thickness of the undercut for the opposed faces 15 that can be further thinned in column portion 12 makes it have flexibility.
Therefore, retainer 60 can more realize that the deformation of opposed faces 15 inhibits in injection moulding.
It is illustrated based on fourth embodiment of Figure 18~Figure 25 to the utility model.
Retainer 70 shown in Figure 18~Figure 20 is different from the first embodiment in the following areas, that is, changes column portion 71
The shape of opposed faces 72.
The opposed faces 72 in column portion 71 are as shown in Figure 18, Figure 21, comprising: concave part 72a has the rolling along roller 20
The shape in face 21；Face 72b is retreated, with gradually separate in the circumferential with the front end side for tending to column portion 71 in the axial direction
The shape of the rolling surface 21 of roller 20；And circular arc face 72c, axially.Become to fall around the front end in column portion 71
The chamfering of horn shape, the front end and the front end in column portion 71 of opposed faces 72 is continuous.
As shown in Figure 18, Figure 21 and Figure 22, the lateral column portion 71 of cardinal extremity of the concave part 72a of opposed faces 72 in column portion 71
Outside diameter and internal side diameter extend.In addition, internal side diameter of the concave part 72a in the lateral column portion 71 in front end in column portion 71 extends.
As shown in Figure 18, Figure 21 and Figure 23, after the retrogressing face 72b of opposed faces 72 compares concave part 72a in the circumferential
It moves back, and continuous with the front end of the outer diameter face in column portion 71 17, concave part 72a and column portion 71.Face 72b is retreated in column portion 71
Outside diameter will be equivalent to first embodiment undercut part remove mode set shape and formed range.Cause
This, retreating face 72b becomes the general triangular being connected with concave part 72a with biggish bevel edge.
In addition, retreating 17 local continuous of outer diameter face of face 72b and column portion 71 as shown in Figure 21 and Figure 23~Figure 25.Make
It is the concave part 72a and outer diameter edge e1 on the boundary of the outer diameter face 17 in column portion 71 by side continuous between point p1 and annular portion 11
Edge point is constituted.The outer diameter edge e2 on the boundary as the outer diameter face 17 for retreating face 72b and column portion 71 is by point p1 and column portion 71
Front end between continuous marginal portion constitute.Between the outer diameter edge e1 of concave part 72a and the rolling surface 21 of roller 20 most
Small―gap suture is set to identical with first embodiment.It retreats between the outer diameter edge e2 of face 72b and the rolling surface 21 of roller 20
Gap greater than concave part 72a outer diameter edge e1 and roller 20 rolling surface 21 between gap.
In addition, retreating the front end local continuous of face 72b and column portion 71.Before retreating face 72b and column portion 71
The front-end edge e3 on the boundary of end is made of marginal portion continuous between the outer diameter face 17 in point p2 and column portion 71.As circle
The front-end edge e4 on the boundary of the front end in cambered surface portion 72c and column portion 71 is by side continuous between point p2 and the front end in column portion 71
Edge point is constituted.Minimum clearance between the front-end edge e4 of circular arc face 72c and the rolling surface 21 of roller 20 is set to and the
One embodiment is identical.It retreats the gap between the front-end edge e3 of face 72b and the rolling surface 21 of roller 20 and is greater than circular arc face
Gap between the front-end edge e4 of 72c and the rolling surface 21 of roller 20.
The circular arc face 72c of opposed faces 72 with the maximum outside diameter portion of the rolling surface 21 of roller 20 opposed position in the circumferential
It sets continuous with the concave part 72a of opposed faces 72.Therefore, the internal side diameter in column portion 71 also will be equivalent to the heavy of first embodiment and cut
The part in portion removes.
Like this, opposed faces 72 by retreat face 72b use and circular arc face 72c expansion, and as completely from
Shape after the opposed faces removal undercut of first embodiment.Therefore, it in the injection moulding of retainer 70, can be not accompanied by
Ground is taken out by force opens mold along axial.In addition, although retreating face 72b by expansion can also make instead of circular arc face 72c
Opposed faces go completely into it is non-it is heavy cut shape, but can not the gap between the rolling surface 21 by roller 20 be set as and first
The identical this respect of embodiment becomes unfavorable.
Retainer 70 is as described above, since the concave part 72a of the shape of the rolling surface 21 along roller 20 is in column
The outside diameter and internal side diameter in the lateral column portion 71 of the cardinal extremity in portion 71 extend and the internal side diameter in the lateral column portion 71 in the front end in column portion 71
The wider range extended, therefore the motion stability of the convex surface roller and retainer when operating can be made, it can be real well
Now reduce the sound of bearing, the function of vibration.In addition, retainer 70 due to in the axial direction tend to column portion 71 front end side and
Gradually in the circumferential the shape of the rolling surface 21 far from roller 20 retrogressing face 72b and column portion 71 outer diameter face 17, concave part
The front end in 72a and column portion 71 is continuous, therefore can be mitigated by retreating face 72b or eliminate the heavy of opposed faces 72 and cut shape
Shape, so as to realize the inhibition of retainer deformation.That is, retainer 70 can be realized the realization and holding for taking into account above-mentioned function
The inhibition of device deformation.
In addition, boundary and opposed faces 72 and column portion 71 of the retainer 70 between the outer diameter face 17 and opposed faces 72 in column portion 71
Front end boundary, be left will not far from roller 20 rolling surface 21 part that is, outer diameter edge e1, front-end edge e4, can will
The size of the minimum clearance between rolling surface 21 on above-mentioned boundary is maintained identical with first embodiment, thus with only pass through
The case where retreating face removal undercut is compared, and the motion stability of the roller 20 and retainer 70 when operating can be more made.
It is only illustrative, and unrestricted for being considered as all the points of each embodiment of disclosure.Therefore, this reality
As shown in the claims with novel range, whole changes in the meaning and range being equal with claim are also included within
It is interior.
Reference text explanation
10,50,60,70 ... retainer；11 ... annular portions；12,62,71 ... column portion；13 ... pocket holes；15,72 ... opposed faces；
15a, 72a ... concave part；16,61 ... non-undercut；17,64 ... outer diameter faces；20 ... rollers；21 ... rolling surfaces；72b ... retreats face
Portion.
Claims (9)
1. a kind of retainer, wherein include single annular portion；From the one side of the annular portion in the axial direction side extend it is more
A column portion；And from the another side of the annular portion in the axial direction the other side extend multiple column portions,
The circumferentially adjacent column portion becomes the pocket hole that can store roller each other,
The column portion have can with the opposed faces of the rolling face contact of the roller,
Multiple column portions of the annular portion, multiple column portions of the side and the other side are integrally formed using resin.
2. retainer according to claim 1, wherein
Multiple column portions of the side are configured in the circumferential with same phase with multiple column portions of the other side.
3. retainer according to claim 1 or 2, wherein
The opposed faces in the column portion have undercut, and the column portion has non-undercut, and the non-undercut is described heavy
The circumferential inboard mode for forming space for cutting portion is recessed.
4. retainer according to claim 1 or 2, wherein
The roller being made of convex surface roller can be accommodated in the pocket hole,
The opposed faces in the column portion include concave part, have the shape of the rolling surface along the roller；And it retreats
Face has with the front end side for the tending to the column portion in the axial direction and gradually rolling surface in the circumferential far from the roller
Shape,
The outside diameter and internal side diameter in the lateral column portion of cardinal extremity of the concave part in the column portion extend and before the column portion
End side extends to the internal side diameter in the column portion, described to retreat face and the outer diameter face in the column portion, the concave part and the column portion
Front end is continuous.
5. retainer according to claim 4, wherein
The retrogressing face in the column portion respectively with the outer diameter face in the column portion and front end local continuous.
6. retainer according to claim 1 or 2, wherein
It is formed with channel-shaped space, the circumferential central portion which passes through the column portion axially extends and radially away from this
The outer diameter face in column portion has depth, and the circumferential distance between the opposed faces of the circumferential two sides of the internal side diameter in the column portion is set
It is 75% or more and 125% or less of the circumferential distance from the channel-shaped space of the outside diameter in the column portion to the opposed faces
Range.
7. retainer according to claim 3, wherein
It is formed with channel-shaped space, the circumferential central portion which passes through the column portion axially extends and radially away from this
The outer diameter face in column portion has depth, and the circumferential distance between the opposed faces of the circumferential two sides of the internal side diameter in the column portion is set
It is 75% or more and 125% or less of the circumferential distance from the channel-shaped space of the outside diameter in the column portion to the opposed faces
Range.
8. retainer according to claim 4, wherein
It is formed with channel-shaped space, the circumferential central portion which passes through the column portion axially extends and radially away from this
The outer diameter face in column portion has depth, and the circumferential distance between the opposed faces of the circumferential two sides of the internal side diameter in the column portion is set
It is 75% or more and 125% or less of the circumferential distance from the channel-shaped space of the outside diameter in the column portion to the opposed faces
Range.
9. retainer according to claim 5, wherein
It is formed with channel-shaped space, the circumferential central portion which passes through the column portion axially extends and radially away from this
The outer diameter face in column portion has depth, and the circumferential distance between the opposed faces of the circumferential two sides of the internal side diameter in the column portion is set
It is 75% or more and 125% or less of the circumferential distance from the channel-shaped space of the outside diameter in the column portion to the opposed faces
Range.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017190223A JP2019065919A (en) | 2017-09-29 | 2017-09-29 | Retainer |
| JP2017-190223 | 2017-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262080U true CN209262080U (en) | 2019-08-16 |
Family
ID=65903278
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821606287.2U Active CN209262080U (en) | 2017-09-29 | 2018-09-29 | Retainer |
| CN201811146810.2A Pending CN109578440A (en) | 2017-09-29 | 2018-09-29 | Retainer |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811146810.2A Pending CN109578440A (en) | 2017-09-29 | 2018-09-29 | Retainer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2019065919A (en) |
| CN (2) | CN209262080U (en) |
| WO (1) | WO2019065996A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208075A (en) * | 2000-01-20 | 2001-08-03 | Nsk Ltd | Double row rolling bearing |
| JP2007205535A (en) * | 2006-02-06 | 2007-08-16 | Nsk Ltd | Cage for rolling bearing, and rolling bearing |
| JP5154986B2 (en) * | 2008-03-21 | 2013-02-27 | Ｎｔｎ株式会社 | Retainer for cylindrical roller bearing |
| DE102008060320A1 (en) * | 2008-12-03 | 2010-06-10 | Schaeffler Kg | Comb cage for a rolling bearing, in particular a double comb cage for a cylindrical roller bearing, roller bearing and method for producing a comb cage for a rolling bearing |
| DE102009005389A1 (en) * | 2009-01-21 | 2010-07-22 | Schaeffler Technologies Gmbh & Co. Kg | Spherical roller bearing with rollers and method for installing the rollers in the spherical roller bearing |
| FR2956708B1 (en) * | 2010-02-24 | 2012-07-06 | Snr Roulements Sa | BEARING BEARING COMPRISING A RETAINING CAGE FOR THE ROLLING BODIES |
| DE102014213634A1 (en) * | 2014-07-14 | 2016-01-14 | Schaeffler Technologies AG & Co. KG | Plastic comb cage and process for its production |
-
2017
- 2017-09-29 JP JP2017190223A patent/JP2019065919A/en active Pending
-
2018
- 2018-09-28 WO PCT/JP2018/036326 patent/WO2019065996A1/en active Application Filing
- 2018-09-29 CN CN201821606287.2U patent/CN209262080U/en active Active
- 2018-09-29 CN CN201811146810.2A patent/CN109578440A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN109578440A (en) | 2019-04-05 |
| WO2019065996A1 (en) | 2019-04-04 |
| JP2019065919A (en) | 2019-04-25 |
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