CN105114447A - Face-to-face type assembled double-row angular contact ball bearing and assembling method thereof - Google Patents
Face-to-face type assembled double-row angular contact ball bearing and assembling method thereof Download PDFInfo
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- CN105114447A CN105114447A CN201510462355.7A CN201510462355A CN105114447A CN 105114447 A CN105114447 A CN 105114447A CN 201510462355 A CN201510462355 A CN 201510462355A CN 105114447 A CN105114447 A CN 105114447A
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Abstract
The invention provides a face-to-face type assembled double-row angular contact ball bearing and an assembling method thereof. The face-to-face type assembled double-row angular contact ball bearing comprises an inner ring, and a first outer channel and a second outer channel are formed in the peripheral face of the inner ring. The inner ring is correspondingly sleeved with a first outer ring and a second outer ring, the two outer rings are sequentially arranged in the front-back direction and are in jack-pressing contact fit, inner channels are formed in the inner circumferential faces of the two outer rings, and the inner channels of the two outer rings and the two outer channels of the inner ring are correspondingly filled with steel balls. The two axial end faces of each outer ring comprises a wide-edge end face and a narrow-edge end face, and the narrow-edge end face of the first outer ring is in corresponding contact and jack-pressing fit with the narrow-edge end face of the second outer ring. Due to the fact that an inner spacer ring and an outer spacer ring are omitted, the inner spacer ring and the outer spacer ring are prevented from being ground, a pretightening force repairing process for assembling the angular contact ball bearing is simplified, axial pretightening force adjusting time is saved, and the efficiency of pretightening force adjustment is improved. By means of the integral inner ring, the mounting process of the whole face-to-face type assembled double-row angular contact ball bearing is simple and efficient, complex adjusting steps are omitted, and the mounting difficulty of the bearing is lowered.
Description
Technical field
The present invention relates to a kind of formula assembly double-row angular contact bal bearing and compound formulation thereof face-to-face.
Background technique
Angular contact ball bearing in actual applications, generally assembly is all wanted to use, namely two covers, the even more cover angular contact ball bearings of three covers are fitted in certain configuration mode and use together, and basic group mode has back-to-back (namely the broadside end face of two outer rings is oppositely arranged), face-to-face (namely the narrow limit end face of two outer rings is oppositely arranged) and series connection (namely the narrow limit end face of an outer ring and the broadside end face of another outer ring are oppositely arranged).Specifically according to the needs of actual conditions, select the matched bearing of different group mode.
Two cover angular contact ball bearing series connection are mainly fitted in together by inside and outside spacer ring and are formed by general face-to-face formula assembly angular contact ball bearing, the two cover angular contact ball bearings steel balls that have inner ring, outer ring respectively and be located between Internal and external cycle, carry out pretension by outer ring spacer and cone spacer to bearing again during use and the loaded line of bearing are parallel to each other.But the shortcoming of this matched bearing is that the adjustment of client's pretightening force is in use very loaded down with trivial details, adjusts improper meeting and causes bearing life to shorten, the phenomenon that even cannot work.In addition, because the axial pre tightening force of assembly angular contact ball bearing is determined primarily of the axial internal clearance of assembly angular contact ball bearing, need that grinding is carried out to the axial length of outer ring spacer and the axial length of cone spacer and could determine axial internal clearance, because the technical merit requirement of technique to workman adjusting axial pre tightening force and grinding spacer ring is high and operation is numerous and diverse, when causing assembly angular contact ball bearing to be installed, the operation cycle is long, efficiency is low.
Summary of the invention
The invention provides a kind of formula assembly double-row angular contact bal bearing face-to-face, carry out the comparatively loaded down with trivial details technical problem of the face-to-face formula assembly angular contact ball bearing pretensioning operation of pretension to solve the inside and outside spacer ring of the use existed in prior art; Meanwhile, the present invention also provides the compound formulation of the above-mentioned face-to-face formula assembly double-row angular contact bal bearing of a kind of assembly.
The technological scheme of face-to-face formula assembly double-row angular contact bal bearing provided by the present invention is: a kind of formula assembly double-row angular contact bal bearing face-to-face, comprise the inner ring axially extended along the longitudinal direction, the outer circumferential face of inner ring is provided with spaced apart first outer raceway groove and the second outer raceway groove along the longitudinal direction, the outer correspondence of inner ring is set with the first outer ring corresponding to raceway groove outer with first and second outer ring corresponding with the second outer raceway groove, two outer rings are arranged along the longitudinal direction successively and top press contacts coordinates, the inner peripheral surface of two outer rings has interior raceway groove, what the interior raceway groove of two outer rings was corresponding with two outer raceway grooves of inner ring is filled with steel ball, two axial ends of each outer ring are respectively broadside end face and narrow limit end face, the narrow limit end face of the first outer ring pushes up press fit with corresponding contact of narrow limit end face of the second outer ring.
Two outer raceway grooves on described inner ring are axially arranged near inner ring two end part axially one to one at inner ring.
The design parameter of two described outer rings is identical.
The technological scheme of the compound formulation of the above-mentioned face-to-face formula assembly double-row angular contact bal bearing of assembly provided by the present invention is: the compound formulation of the above-mentioned face-to-face formula assembly double-row angular contact bal bearing of a kind of assembly, comprises the steps:
Step one, individually by the first outer ring trap at the first outer raceway groove place of inner ring with by the second outer raceway groove place of the second outer ring trap at inner ring, inner ring is supported on supporting plane, inner ring have first axial end corresponding with the first outer ring and second axial end corresponding with the second outer ring, by trap independent for the first outer ring on inner ring time, second axial end top of inner ring is pressed on supporting plane, by trap independent for the second outer ring on inner ring time, first axial end top of inner ring is pressed on supporting plane, when first outer ring and the second outer ring trap are on inner ring, corresponding narrow limit end face is all towards described supporting plane, apply to force corresponding outer ring towards the setting load of the formed objects of supporting plane movement respectively to first outer ring of trap on inner ring and the second outer ring, corresponding measurement is the first outer ring and the spacing L1 of the second axial end of described inner ring and the spacing L2 of the first axial end of the second outer ring and described inner ring when bearing setting load,
Step 2, L1 with L2 is done with and the axial width B deducting inner ring obtains the spacing H of the relative two narrow limit end faces of two outer rings of described face-to-face formula assembly angular contact ball bearing, by the axial internal clearance G of the design of described spacing H and described face-to-face formula assembly angular contact ball bearing
ado and, obtain thickness b to be ground, carry out grinding respectively according to the narrow limit end face of thickness to two outer rings of b/2;
Step 3, two outer rings just after grinding and trap corresponding to corresponding steel ball are on inner ring.The compound formulation of face-to-face formula assembly double-row angular contact bal bearing according to claim 4, is characterized in that:
In described step one, first the second axial end top of inner ring to be pressed on supporting plane and the trap making the first outer ring independent at the first outer raceway groove place of inner ring, the narrow limit end face of the first outer ring is towards described supporting plane, spacing L1 described in measuring when setting load is born in the first outer ring, then the first outer ring is pulled down, and by inner ring upset to make the first axial end top of inner ring be pressed on supporting plane, by the second outer raceway groove place of trap independent for the second outer ring at inner ring, the narrow limit end face of the second outer ring is towards described supporting plane, spacing L2 described in measuring when setting load is born in the second outer ring.
Described setting load is applied on the broadside end face of corresponding outer ring by the top load block be pressed on corresponding outer ring.
Beneficial effect provided by the present invention is: in face-to-face formula assembly double-row angular contact bal bearing provided by the present invention, inner ring is provided with double channel, and be fitted together with the outer ring sleeve that two splits are arranged, during assembling, when ensureing inner ring intensity, can cone spacer be saved, thus the error that existing two inner rings and cone spacer sides out of parallel and planeness bring can be eliminated, improve the integral rigidity of face-to-face formula assembly angular contact ball bearing.Further, owing to eliminating internal space ring and external space ring, avoid the grinding of internal space ring and external space ring, simplify the pretightening force repair technique of assembly angular contact ball bearing, save axial pre tightening force regulation time, improve the efficiency of pretightening force adjustment.All-in-one-piece inner ring makes the installation process of whole face-to-face formula assembly angular contact ball bearing more succinct, efficient, saves complicated set-up procedure, reduces bearing installation difficulty.
In compound formulation provided by the present invention, by individually by the first outer ring trap at the first outer raceway groove place of inner ring with by the second outer raceway groove place of the second outer ring trap at inner ring, by measuring the narrow limit end face of two outer rings and the spacing of the corresponding axial end of inner ring that obtain, and then calculate thickness to be ground, that divides equally according to this thickness carries out grinding respectively to the narrow limit end face of two outer rings, thus ensure that the axial internal clearance of the face-to-face formula assembly double-row angular contact bal bearing that assembly completes reaches designing requirement, whole compound formulation is simple to operate, it is convenient to measure, assembly efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of face-to-face formula assembly double-row angular contact bal bearing provided by the present invention;
Fig. 2 is the structural representation of inner ring in Fig. 1;
Fig. 3 is by the structural representation of the first independent trap in outer ring at the first outer raceway groove place of inner ring;
Fig. 4 is by the structural representation of the second independent trap in outer ring at the second outer raceway groove place of inner ring.
Embodiment
As shown in Figure 1 and Figure 2, a kind of embodiment of face-to-face formula assembly double-row angular contact bal bearing, face-to-face formula assembly double-row angular contact bal bearing in this embodiment comprises the inner ring 5 axially extended along the longitudinal direction, the outer circumferential face of inner ring 5 is provided with spaced apart first outer raceway groove 51 and the second outer raceway groove 52, two outer raceway grooves along the longitudinal direction and axially arranges near inner ring two end part axially one to one at inner ring.The outer correspondence of inner ring 5 is set with the first outer ring 1 corresponding to raceway groove 51 outer with first and second outer ring 2 corresponding with the second outer raceway groove 52, two outer rings are arranged along the longitudinal direction successively and top press contacts coordinates, the inner peripheral surface of two outer rings has interior raceway groove, what the interior raceway groove of two outer rings was corresponding with two outer raceway grooves of inner ring is filled with steel ball 4, between inner ring and two outer rings, be also respectively equipped with steel ball retainer 3.
In the present embodiment, the design parameter of two outer raceway grooves of inner ring 5 is corresponding with the design parameter of the interior raceway groove of two outer rings, all corresponding with the radius parameter of steel ball 4.Like this, by two outer ring traps on all-in-one-piece inner ring time, the loaded line that two of inner ring 5 outer raceway grooves, the interior raceway groove of two outer rings and steel ball 4 are formed converges to the central axis of bearing the assembling structure that forming surface facing type installs.
Two axial ends of each outer ring are respectively broadside end face and narrow limit end face, and the narrow limit end face of the first outer ring 1 and the narrow limit end face of the second outer ring 2 are arranged in opposite directions, and the narrow limit end face of the first outer ring 1 pushes up press fit with corresponding contact of narrow limit end face of the second outer ring 2.
In the present embodiment, the design parameter of two outer rings is identical, and in other embodiments, the design parameter of two outer rings also can be different.
In the present embodiment, structure when inner ring adopts overall, inner ring arranges two outer raceway grooves to match with two outer rings, eliminates the structure of existing two inner rings and cone spacer, simplify the overall structure of tandem assembly angular contact ball bearing.
In the present embodiment, steel ball to be along the circumferential direction distributed in the outer raceway groove of inner ring and outer ring in raceway groove by steel ball retainer.In other embodiments, steel ball also can by being located in the outer raceway groove being along the circumferential direction distributed on inner ring corresponding to respective dimple in the outer raceway groove of inner ring and outer ring in raceway groove and outer ring in raceway groove.
In tandem assembly double-row angular contact bal bearing provided by the present invention, eliminate internal space ring and external space ring, reduce bearing width, saved space, making the steel ball can selecting large-size when allowing, being conducive to provide bearing rigidity.
As shown in Figures 1 to 4, the compound formulation of the above-mentioned face-to-face formula assembly double-row angular contact bal bearing of a kind of assembly provided by the present invention, comprise the steps:
Step one, individually by the first outer ring 1 trap at the first outer raceway groove 51 place of inner ring 5 with by 2-in-1 for the second outer ring the second outer raceway groove 52 place being enclosed within inner ring, inner ring 5 is supported on supporting plane 71, inner ring 5 have first axial end 5.1 corresponding with the first outer ring 1 and second axial end 5.2 corresponding with the second outer ring 2, by trap independent for the first outer ring 1 on inner ring 5 time, second axial end 5.2 top of inner ring 5 is pressed on supporting plane 71, by trap independent for the second outer ring 2 on inner ring 5 time, first axial end 5.1 top of inner ring 5 is pressed on supporting plane 71, first outer ring 1 and the second outer ring is 2-in-1 when being enclosed within inner ring 5 corresponding narrow limit end face are all towards described supporting plane 71, apply to force corresponding outer ring towards the setting load of the formed objects of supporting plane movement respectively to first outer ring 1 of trap on inner ring 5 and the second outer ring 2, the corresponding spacing L2 measuring the spacing L1 of the second axial end 5.2 of the first outer ring 1 and described inner ring 5 when bearing setting load and the first axial end 5.1 of the second outer ring 2 and described inner ring 5,
Step 2, L1 with L2 is done with and the axial width B deducting inner ring obtains the spacing H of the relative two narrow limit end faces of two outer rings of described face-to-face formula assembly angular contact ball bearing, by the axial internal clearance G of the design of described spacing H and described face-to-face formula assembly angular contact ball bearing
ado and, obtain thickness b to be ground, carry out grinding respectively according to the narrow limit end face of thickness to two outer rings of b/2;
Step 3, two outer rings just after grinding and trap corresponding to corresponding steel ball are on inner ring.
Supporting plane 71 in above-mentioned compound formulation is arranged on cushion block 7.When by first outer raceway groove 51 place of the first outer ring 1 trap at inner ring 5, make the second axial end 5.2 support top of inner ring 5 be pressed on the supporting plane 71 of cushion block 7, now, the first axial end 5.1 of inner ring 5 is arranged away from described supporting plane 71.And by 2-in-1 for the second outer ring be enclosed within the second outer raceway groove place of inner ring 5 time, make inner ring 5 first axial end 5.1 top be pressed on the supporting plane 71 of cushion block 7, now, the second axial end 5.2 of inner ring 5 is arranged away from described supporting plane 71.
In described step one, first the second axial end top of inner ring to be pressed on supporting plane and the trap making the first outer ring independent at the first outer raceway groove place of inner ring, the narrow limit end face of the first outer ring is towards described supporting plane, spacing L1 described in measuring when setting load is born in the first outer ring, then the first outer ring is pulled down, and by inner ring upset to make the first axial end top of inner ring be pressed on supporting plane, by the second outer raceway groove place of trap independent for the second outer ring at inner ring, the narrow limit end face of the second outer ring is towards described supporting plane, spacing L2 described in measuring when setting load is born in the second outer ring.Setting load in step one in the present embodiment is applied on the broadside end face of corresponding outer ring by the top load block 7 be pressed on corresponding outer ring.
In the embodiment of above-mentioned compound formulation, first by trap independent for the first outer ring on inner ring, and make the second axial end top of inner ring be pressed on supporting plane, measure the spacing L1 between the narrow limit end face of the first outer ring and the second axial end of inner ring.In other embodiments, also can first by the second raceway groove place of the second outer ring trap at inner ring, now, the the first axial end top making inner ring is needed to be pressed on supporting plane, measure the distance L2 between the narrow limit end face of the second outer ring and the first axial end of inner ring, then the second outer ring is removed, inner ring is overturn, be pressed on supporting plane to make the second axial end top of inner ring, again by the first outer raceway groove place of the first outer ring trap at inner ring, measure the spacing L1 between the narrow limit end face of the first outer ring and the second axial end of inner ring.
Claims (6)
1. a face-to-face formula assembly double-row angular contact bal bearing, it is characterized in that: comprise the inner ring axially extended along the longitudinal direction, the outer circumferential face of inner ring is provided with spaced apart first outer raceway groove and the second outer raceway groove along the longitudinal direction, the outer correspondence of inner ring is set with the first outer ring corresponding to raceway groove outer with first and second outer ring corresponding with the second outer raceway groove, two outer rings are arranged along the longitudinal direction successively and top press contacts coordinates, the inner peripheral surface of two outer rings has interior raceway groove, what the interior raceway groove of two outer rings was corresponding with two outer raceway grooves of inner ring is filled with steel ball, two axial ends of each outer ring are respectively broadside end face and narrow limit end face, the narrow limit end face of the first outer ring pushes up press fit with corresponding contact of narrow limit end face of the second outer ring.
2. face-to-face formula assembly double-row angular contact bal bearing according to claim 1, is characterized in that: two outer raceway grooves on described inner ring are axially arranged near inner ring two end part axially one to one at inner ring.
3. face-to-face formula assembly double-row angular contact bal bearing according to claim 1 and 2, is characterized in that: the design parameter of two described outer rings is identical.
4. a compound formulation for assembly formula assembly double-row angular contact bal bearing face-to-face as claimed in claim 1, is characterized in that: comprise the steps:
Step one, individually by the first outer ring trap at the first outer raceway groove place of inner ring with by the second outer raceway groove place of the second outer ring trap at inner ring, inner ring is supported on supporting plane, inner ring have first axial end corresponding with the first outer ring and second axial end corresponding with the second outer ring, by trap independent for the first outer ring on inner ring time, second axial end top of inner ring is pressed on supporting plane, by trap independent for the second outer ring on inner ring time, first axial end top of inner ring is pressed on supporting plane, when first outer ring and the second outer ring trap are on inner ring, corresponding narrow limit end face is all towards described supporting plane, apply to force corresponding outer ring towards the setting load of the formed objects of supporting plane movement respectively to first outer ring of trap on inner ring and the second outer ring, corresponding measurement is the first outer ring and the spacing L1 of the second axial end of described inner ring and the spacing L2 of the first axial end of the second outer ring and described inner ring when bearing setting load,
Step 2, L1 with L2 is done with and the axial width B deducting inner ring obtains the spacing H of the relative two narrow limit end faces of two outer rings of described face-to-face formula assembly angular contact ball bearing, by the axial internal clearance G of the design of described spacing H and described face-to-face formula assembly angular contact ball bearing
ado and, obtain thickness b to be ground, carry out grinding respectively according to the narrow limit end face of thickness to two outer rings of b/2;
Step 3, by two outer rings after grinding and trap corresponding to corresponding steel ball on inner ring.
5. the compound formulation of face-to-face formula assembly double-row angular contact bal bearing according to claim 4, it is characterized in that: in described step one, first the second axial end top of inner ring to be pressed on supporting plane and the trap making the first outer ring independent at the first outer raceway groove place of inner ring, the narrow limit end face of the first outer ring is towards described supporting plane, spacing L1 described in measuring when setting load is born in the first outer ring, then the first outer ring is pulled down, and by inner ring upset to make the first axial end top of inner ring be pressed on supporting plane, by the second outer raceway groove place of trap independent for the second outer ring at inner ring, the narrow limit end face of the second outer ring is towards described supporting plane, spacing L2 described in measuring when setting load is born in the second outer ring.
6. the compound formulation of the face-to-face formula assembly double-row angular contact bal bearing according to claim 4 or 5, is characterized in that: described setting load is applied on the broadside end face of corresponding outer ring by the top load block be pressed on corresponding outer ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510462355.7A CN105114447A (en) | 2015-07-31 | 2015-07-31 | Face-to-face type assembled double-row angular contact ball bearing and assembling method thereof |
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| CN201510462355.7A CN105114447A (en) | 2015-07-31 | 2015-07-31 | Face-to-face type assembled double-row angular contact ball bearing and assembling method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105782237A (en) * | 2016-05-17 | 2016-07-20 | 中山市盈科轴承制造有限公司 | Bi-inner-ring and double-row angular contact thrust ball bearing and preloading interval optimization method thereof |
| CN106224374A (en) * | 2016-08-31 | 2016-12-14 | 洛阳轴研科技股份有限公司 | Angular contact ball bearing, bearing assembly and manufacture method thereof, compound formulation |
| CN106438687A (en) * | 2016-12-09 | 2017-02-22 | 瓦房店轴承集团有限责任公司 | Pairing angular contact ball bearing for solar energy crystal silicon slicing machine |
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| CN105782237A (en) * | 2016-05-17 | 2016-07-20 | 中山市盈科轴承制造有限公司 | Bi-inner-ring and double-row angular contact thrust ball bearing and preloading interval optimization method thereof |
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| CN106438687A (en) * | 2016-12-09 | 2017-02-22 | 瓦房店轴承集团有限责任公司 | Pairing angular contact ball bearing for solar energy crystal silicon slicing machine |
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Applicant after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Applicant before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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Application publication date: 20151202 |
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