CN105134789A - Self-lubricating rotary table bearing and axial play match grinding method thereof - Google Patents
Self-lubricating rotary table bearing and axial play match grinding method thereof Download PDFInfo
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- CN105134789A CN105134789A CN201510506535.0A CN201510506535A CN105134789A CN 105134789 A CN105134789 A CN 105134789A CN 201510506535 A CN201510506535 A CN 201510506535A CN 105134789 A CN105134789 A CN 105134789A
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- inner ring
- outer ring
- end surface
- solid lubricant
- blowout patche
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Abstract
The invention relates to a self-lubricating rotary table bearing and an axial play match grinding method thereof. The self-lubricating rotary table bearing comprises an inner ring and an outer ring. An inner side supporting and abutting face section is arranged on the outer circumferential face of the inner ring, and an outer side abutting and pressing face section is arranged on the inner circumferential face of the outer ring. A shaft washer is fixedly arranged on the inner ring and on the upper sides of the inner and outer rings and is assembled to the outer ring in a rotary supporting manner. The lower portion of the shaft washer is provided with an upper abutting and pressing face for downwards abutting against and pressing the outer ring. The upper portion of the outer ring is provided with a lower supporting and abutting face for upwards supporting and abutting against the shaft washer. Solid lubricating layers are arranged between the inner side supporting and abutting face section and the outer side abutting and pressing face section as well as between the upper abutting and pressing face and the lower supporting and abutting face to achieve supporting and rotating fit respectively. On the one hand, rollers can be omitted, and the structure of the whole rotary table bearing is simplified; and on the other hand, the solid lubricating layers can be utilized for lubrication so that self lubrication of the rotary table bearing can be achieved.
Description
Technical field
The present invention relates to a kind of selflubricating turntable bearing and axial internal clearance match grinding method thereof.
Background technique
Turntable bearing is the swirl gear that a kind of outer ring rotates, inner ring supports, and it is widely used in the fields such as Machine Manufacture, plays the effect of revolving support.Existing turntable bearing is formed as YRT series bearing has three row rollers, and the axial roller of two row ensures stable axial carrying capacity, and a row radial roller ensures that bearing can bear radial force and tilting moment.But the structure of this common turntable bearing is comparatively complicated, difficulty of processing is large, and cost of production is high, and rotating speed is low.
Be disclose a kind of combined turntable bearing in the Chinese utility model patent of CN202176615U at Authorization Notice No., it comprises corresponding coaxially arranged outer ring, inner ring and blowout patche, inner ring and outer ring are rotated by the radial ball be arranged between Internal and external cycle and are assembled together, the radial inner peripheral surface of outer ring and the radial outer peripheral surface of inner ring are respectively equipped with the half-round race corresponding with radial ball, blowout patche is by coaxial being fixedly assembled together of screw and inner ring, blowout patche is positioned at the upside of inner ring and outer ring, cylindrical roller is folded with between the upside end face and blowout patche of outer ring, cylindrical roller extends along outer ring axial distribution and along the radial direction of outer ring, outer ring is also provided with fixed via.During use, fixed outer ring by fixed via, inner ring and blowout patche drive the radial ball platform bearing axis that rotates together with cylindrical roller to rotate respectively, and radial ball and cylindrical roller had not only revolved round the sun but also rotation in rotary course.
In combinations thereof formula turntable bearing, outer ring, blowout patche and the cylindrical roller be folded between outer ring and blowout patche form a cylindrical roller thrust bearing, and outer ring, inner ring and the radial ball be folded between Internal and external cycle form a radial ball bearing, and by the combined turntable bearing that cylindrical roller thrust bearing and radial ball bearing form a whole by the several screws being fastenedly connected inner ring and blowout patche, can be applicable on revolving table or index plate.In this turntable bearing, because the rotating sleeve that outer ring is coaxial is contained in outside inner ring, the outer circumferential face of inner ring has support face, the inner side section contacting support radial ball in the vertical direction, accordingly, the inner peripheral surface of outer ring has contact downwards in the vertical direction and pushes up top, the outside pressure surface section pressing to bulbus cordis, medial support face section is coordinated with outside-supporting face section rotational support by radial ball, and be arranged in the upside of Internal and external cycle due to blowout patche, blowout patche bottom is provided with the upper top pressure surface of top press contacts cylindrical roller downwards, top, outer ring is provided with the lower support face of upwards support contact cylindrical roller, the upper support face of outer ring is coordinated with the lower top pressure surface rotational support of blowout patche by cylindrical roller.But this combined turntable bearing structure needs to arrange radial ball between Internal and external cycle, also needs to arrange cylindrical roller between blowout patche and outer ring, overall structure is still comparatively complicated, and difficulty of processing is large, and also needs to arrange lubricating structure during running, and maintenance cost is high.
Summary of the invention
The invention provides a kind of selflubricating turntable bearing, with solve turntable bearing complicated integral structure of the prior art and with the technical problem also needing to arrange in addition lubricating structure during running and cause maintenance cost higher; Meanwhile, the present invention also provides a kind of axial internal clearance match grinding method of above-mentioned selflubricating turntable bearing.
The technological scheme of selflubricating turntable bearing provided by the present invention is: a kind of selflubricating turntable bearing, comprise the inner ring that axially extends along the vertical direction and coaxial support rotating and be sleeved on outer ring outside inner ring, the outer circumferential face of inner ring is provided with support face, the inner side section for upwards outer ring described in support, the inner peripheral surface of outer ring is provided with for pushing up top, the outside pressure surface section of pressing described inner ring downwards, coaxially removablely on inner ring be fixedly equipped with blowout patche, blowout patche be arranged on Internal and external cycle upside and with described outer ring rotating support assemblies, the bottom of blowout patche has the upper top pressure surface for pushing up the described outer ring of pressure downwards, the top of outer ring has the lower support face for upwards blowout patche described in support, described inner side support face section and outside are pushed up between pressure surface section and between described upper top pressure surface and lower support face and are provided with solid lubricant layer, between be provided with solid lubricant layer described support face, inner side section push up pressure surface section with outside and upper top pressure surface is coordinated by described solid lubricant layer support rotating with lower support face.
It is lower solid lubricant layer that the solid lubricant layer be provided with between pressure surface section is pushed up in described inner side support face section and outside, and support face, described inner side section is the identical up-small and down-big frusto-conical face of tapering with top, described outside pressure surface section.
Described lower solid lubricant layer formed by being plated the lower solid lubricant film be located in described inner side support face section and/or top, outside pressure surface section by coating process.
The solid lubricant layer be provided with between described upper top pressure surface and lower support face is upper solid lubricant layer, and upper solid lubricant layer formed by plating by coating process the upper solid lubricant film be located on described upper top pressure surface and/or lower support face.
Described upper top pressure surface is provided with described upper solid lubricant film, upper top pressure surface is arranged on the lower end surface of described blowout patche, the lower end surface of blowout patche has the top splenium pushing up press fit with the upper-end surface of described inner ring, this top splenium is provided with solid lubricant film by coating process plating.
The lower end surface of described inner ring is concordant with the lower end surface of described outer ring, and the upper-end surface of described inner ring is in the vertical direction higher than the upper-end surface of described outer ring.
Described inner ring and blowout patche are connected by screw removable being fixedly assembled together of structure, described screw connecting structure comprises the through screw mounting hole of the correspondence be arranged on described inner ring and blowout patche and fastening screw trip bolt, screw mounting hole on inner ring is the ventricumbent shoulder hole of ladder, and the screw mounting hole on blowout patche is interior threaded hole.
Described blowout patche is provided with unthreaded hole between adjacent interior threaded hole, unthreaded hole on blowout patche and interior threaded hole uniform along blowout patche circumference, the number of the unthreaded hole on blowout patche and the number sum of interior threaded hole equal the number of the shoulder hole on inner ring, have the preparation shoulder hole through with unthreaded hole one_to_one corresponding on blowout patche in the multiple shoulder holes on inner ring.
Technological scheme for carrying out the match grinding method of match grinding to the axial internal clearance of above-mentioned selflubricating turntable bearing provided by the present invention is: by the inner ring of selflubricating turntable bearing and outer ring trap, the upper-end surface of inner ring is in the vertical direction higher than the upper-end surface of described outer ring, during match grinding, measure the height difference H between the upper-end surface of inner ring and the upper-end surface of outer ring
difference, according to the trap play Ga of the turntable bearing preset, to the upper-end surface of inner ring according to H
differencethe grinding capacity of-Ga carries out grinding.
The height of described measurement inner ring is H, and the height distance measured between the upper-end surface of outer ring and the lower end surface of outer ring is Hw, described H
difference=H-Hw.
The beneficial effect of selflubricating turntable bearing provided by the present invention is: in selflubricating turntable bearing provided by the present invention, push up between pressure surface and lower support face on inner side support face section and outside to be pushed up between pressure surface section and/or be described and be provided with solid lubricant layer, and, between be provided with solid lubricant layer described support face, inner side section push up pressure surface section with outside and upper top pressure surface is coordinated by described solid lubricant layer support rotating with lower support face, like this, support face section and outside inside being arranged on can be saved on the one hand and push up the roller between pressure surface section and between described upper top pressure surface and lower support face, simplify the structure of whole turntable bearing, on the other hand, solid lubricant layer internal side stay end face section and outside can also be utilized to push up pressure surface section and described upper top pressure surface and lower support face lubricate, realize the selflubricating of turntable bearing, do not need to arrange lubricating structure more in addition, the structure of turntable bearing can be simplified equally, reduce and produce and maintenance cost.
Further, push up between pressure surface section in inner side support face section and outside and be provided with solid lubricant layer, and support face, inner side section is the up-small and down-big frusto-conical face that tapering is identical with top, described outside pressure surface section, be convenient on the one hand assembling, adopt frusto-conical face can support pressure between active balance Internal and external cycle on the other hand.
Further, be connected by screw the removable fixing assembling that structure realizes blowout patche and inner ring, structure is simple, safeguards that dismounting all more for convenience.
With install the structure of roller in prior art additional between Internal and external cycle compared with, push up pressure surface section due to support face, the inner side section in selflubricating turntable bearing provided by the present invention with outside directly to be coordinated by solid lubricant layer support rotating, during Internal and external cycle suit, amount of deformation is in the vertical direction much smaller, so, can directly according to the height difference H between the upper-end surface of inner ring and the upper-end surface of outer ring
differencecalculate with the trap play Ga of the turntable bearing preset the grinding capacity needing the upper-end surface of inner ring to be carried out to grinding, ensure the match grinding precision of Internal and external cycle in turntable bearing.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of selflubricating turntable bearing provided by the present invention;
Fig. 2 is the outer ring of the bearing of turntable shown in Fig. 1 and the structural representation of inner ring assembling.
Embodiment
As shown in Figure 1 and Figure 2, a kind of embodiment of selflubricating turntable bearing, turntable shaft in this embodiment is contracted the inner ring 1 drawing together and axially extend along the vertical direction and coaxial support rotating and is sleeved on outer ring 2 outside inner ring 1, coaxially removablely on inner ring 1 be fixedly equipped with blowout patche 3, blowout patche 3 is arranged on the upside of Internal and external cycle and assembles with described outer ring 2 rotational support.
In the present embodiment, the outer circumferential face of inner ring 1 is provided with support face, the inner side section 11 for upwards outer ring 2 described in support, the inner peripheral surface of outer ring 2 is provided with for pushing up top, the outside pressure surface section 21 of pressing described inner ring downwards, and, push up between pressure surface section 21 in support face, inner side section 11 and outside and be provided with lower solid lubricant layer 6, support face, the inner side section 11 being provided with lower solid lubricant layer 6 is pushed up pressure surface section 21 with outside and is coordinated by lower solid lubricant layer 6 support rotating.Further, support face, the inner side section 11 in the present embodiment is the identical up-small and down-big frusto-conical face of tapering with top, described outside pressure surface section 21.
Above-mentioned lower solid lubricant layer 6 formed by being plated the lower solid lubricant film be located in inner side support face section and top, outside pressure surface section by ion film plating technique.
And, bottom due to blowout patche 3 has for pushing up the upper top pressure surface 32 of pressing described outer ring 2 downwards, the top of outer ring 2 has the lower support face 22 for upwards blowout patche 3 described in support, be provided with solid lubricant layer 5 between described upper top pressure surface 32 and lower support face 22, between be provided with solid lubricant layer 5 upper top pressure surface 32 coordinated by lower solid lubricant layer 5 support rotating with lower support face 22.
Same, above-mentioned upper solid lubricant layer formed by plating by ion film plating technique the upper solid lubricant film be located on described upper top pressure surface and lower support face.
In the present embodiment, the upper top pressure surface 32 of blowout patche 3 is arranged on the lower end surface of described blowout patche 3, the lower end surface of blowout patche 3 has the top splenium pushing up press fit with the upper-end surface of described inner ring, and this top splenium is provided with solid lubricant film by the plating of ion film plating technique.
In the present embodiment, the lower end surface of inner ring 1 is concordant with the lower end surface of described outer ring 2, and the upper-end surface of described inner ring 1 is in the vertical direction higher than the upper-end surface of described outer ring 2.During assembling, inner ring 1 and blowout patche 3 are connected by screw removable being fixedly assembled together of structure, described screw connecting structure comprises the through screw mounting hole of the correspondence be arranged on described inner ring 1 and blowout patche 3 and fastening screw trip bolt 4, screw mounting hole on inner ring 1 is the ventricumbent shoulder hole 12 of ladder, and the screw mounting hole on blowout patche 3 is interior threaded hole 33.In the present embodiment, blowout patche 3 is provided with unthreaded hole 31 between adjacent interior threaded hole 33, unthreaded hole 31 on blowout patche 3 and interior threaded hole 33 uniform along blowout patche circumference, the number of the unthreaded hole 31 on blowout patche 3 and the number sum of interior threaded hole 33 equal the number of the shoulder hole 12 on inner ring 1, have the preparation shoulder hole through with unthreaded hole one_to_one corresponding on blowout patche 3 in the multiple shoulder holes 12 on inner ring 1.
And, for ensureing normal assembling, the internal diameter of blowout patche 3 is slightly larger than the internal diameter of inner ring 1, and the diameter of the interior threaded hole 33 on blowout patche 3 is identical with the diameter of the path section of the shoulder hole 12 on inner ring 1, and the diameter of unthreaded hole 31 on blowout patche 3 is identical with the diameter of the path section of the shoulder hole 12 on inner ring 1.
Owing to being assembled by lower solid lubricant layer 6 rotational support between inner ring 1 and outer ring 2, and assembled by upper solid lubricant layer 5 rotational support between blowout patche 3 and outer ring 2, and be connected by screw structure by inner ring and removable being fixedly assembled together of blowout patche, whole turntable shaft bearing structure is simple, is convenient to dismounting and safeguards.Meanwhile, due to the existence of solid lubricant film, the selflubricating between inner ring and outer ring and between outer ring and blowout patche in turntable bearing can be realized.
In the present embodiment, push up between pressure surface and lower support face on inner side support face section and outside to be pushed up between pressure surface section and be described and be respectively equipped with solid lubricant layer, further, pressure surface section is pushed up and upper top pressure surface is all coordinated by described solid lubricant layer support rotating with lower support face in inner side support face section and outside.In other embodiments, also only can push up between pressure surface section in inner side support face section and outside and solid lubricant layer is set, now, cylindrical roller rotational support of the prior art between outer ring and blowout patche, can be adopted to assemble.Certainly, also only can push up between pressure surface and lower support face on described and be provided with solid lubricant layer, now, radial ball of the prior art between inner ring and outer ring, can be adopted to realize the support rotating suit of Internal and external cycle.
In the present embodiment, support face, inner side section is the identical up-small and down-big frusto-conical face of tapering with top, outside pressure surface section, cross section on the above-below direction of frusto-conical face is isosceles trapezoidal structure, in other embodiments, inner side support face section and top, outside pressure surface section also can be ring-shaped periphery structure, and the dual-side in the cross section on the above-below direction of this ring-shaped periphery structure is circular arc.
In the present embodiment, the solid lubricant film in the present embodiment is located in respective face by the plating of ion film plating technique, and in other embodiments, other coating process also can be adopted to arrange, and solid lubricant film is to form solid lubricant layer.
In the present embodiment, upper solid lubricant film is arranged on top pressure surface and lower support face, and in other embodiments, upper solid lubricant film also can only be arranged on top pressure surface or lower support face.Accordingly, lower solid lubrication also can only be pushed up in pressure surface section in described inner side support face section or outside.
In the present embodiment, the lower end surface of inner ring is concordant with the lower end surface of outer ring, and in other embodiments, the lower end surface that outer ring also can be refused in the lower end surface of inner ring is concordant.And the upper-end surface of inner ring is higher than the lower end surface of outer ring, in other embodiments, the lower end surface of inner ring also can be made lower than the upper-end surface of outer ring or concordant with the upper-end surface of outer ring, now, the structure that can adjust blowout patche meets the assembling with Internal and external cycle.
A kind of axial internal clearance of selflubricating turntable bearing joins the embodiment of modeling method, match grinding method in this embodiment carries out play match grinding to son lubrication turntable bearing as shown in Figure 1 and Figure 2, specifically by Internal and external cycle trap, measure the height difference H between the upper-end surface of inner ring and the upper-end surface of outer ring
difference, according to the trap play Ga of the turntable bearing preset, to the upper-end surface of inner ring according to H
differencethe grinding capacity of-Ga carries out grinding.The height measuring inner ring is H, and the height distance measured between the upper-end surface of outer ring and the lower end surface of outer ring is Hw, H
difference=H-Hw.
The lower end surface that this match grinding method not only can be applied in inner ring is concordant with the lower end surface of outer ring, the lower end surface that yet can be applied in inner ring is not concordant with the lower end surface of outer ring, in other embodiments, as long as the upper-end surface of inner ring just can by measuring the height difference H between the upper-end surface of inner ring and the upper-end surface of outer ring higher than the upper-end surface of outer ring
difference, calculate the grinding capacity needing inner ring upper-end surface to be carried out to grinding.
Claims (10)
1. a selflubricating turntable bearing, comprise the inner ring that axially extends along the vertical direction and coaxial support rotating and be sleeved on outer ring outside inner ring, the outer circumferential face of inner ring is provided with support face, the inner side section for upwards outer ring described in support, the inner peripheral surface of outer ring is provided with for pushing up top, the outside pressure surface section of pressing described inner ring downwards, coaxially removablely on inner ring be fixedly equipped with blowout patche, blowout patche be arranged on Internal and external cycle upside and with described outer ring rotating support assemblies, the bottom of blowout patche has the upper top pressure surface for pushing up the described outer ring of pressure downwards, the top of outer ring has the lower support face for upwards blowout patche described in support, it is characterized in that: described inner side support face section and outside are pushed up between pressure surface section and between described upper top pressure surface and lower support face and be provided with solid lubricant layer, between be provided with solid lubricant layer described support face, inner side section push up pressure surface section with outside and upper top pressure surface is coordinated by described solid lubricant layer support rotating with lower support face.
2. selflubricating turntable bearing according to claim 1, it is characterized in that: it is lower solid lubricant layer that the solid lubricant layer be provided with between pressure surface section is pushed up in described inner side support face section and outside, support face, described inner side section is the identical up-small and down-big frusto-conical face of tapering with top, described outside pressure surface section.
3. selflubricating turntable bearing according to claim 2, is characterized in that: described lower solid lubricant layer formed by being plated the lower solid lubricant film be located in described inner side support face section and/or top, outside pressure surface section by coating process.
4. the selflubricating turntable bearing according to Claims 2 or 3, it is characterized in that: the solid lubricant layer be provided with between described upper top pressure surface and lower support face is upper solid lubricant layer, upper solid lubricant layer formed by plating by coating process the upper solid lubricant film be located on described upper top pressure surface and/or lower support face.
5. selflubricating turntable bearing according to claim 4, it is characterized in that: described upper top pressure surface is provided with described upper solid lubricant film, upper top pressure surface is arranged on the lower end surface of described blowout patche, the lower end surface of blowout patche has the top splenium pushing up press fit with the upper-end surface of described inner ring, this top splenium is provided with solid lubricant film by coating process plating.
6. selflubricating turntable bearing according to claim 5, is characterized in that: the lower end surface of described inner ring is concordant with the lower end surface of described outer ring, the upper-end surface of described inner ring is in the vertical direction higher than the upper-end surface of described outer ring.
7. the selflubricating turntable bearing according to claim 1 or 2 or 3, it is characterized in that: described inner ring and blowout patche are connected by screw removable being fixedly assembled together of structure, described screw connecting structure comprises the through screw mounting hole of the correspondence be arranged on described inner ring and blowout patche and fastening screw trip bolt, screw mounting hole on inner ring is the ventricumbent shoulder hole of ladder, and the screw mounting hole on blowout patche is interior threaded hole.
8. selflubricating turntable bearing according to claim 7, it is characterized in that: described blowout patche is provided with unthreaded hole between adjacent interior threaded hole, unthreaded hole on blowout patche and interior threaded hole uniform along blowout patche circumference, the number of the unthreaded hole on blowout patche and the number sum of interior threaded hole equal the number of the shoulder hole on inner ring, have the preparation shoulder hole through with unthreaded hole one_to_one corresponding on blowout patche in the multiple shoulder holes on inner ring.
9. one kind for carrying out the match grinding method of match grinding to the axial internal clearance of selflubricating turntable bearing as claimed in claim 1, it is characterized in that: by the inner ring of selflubricating turntable bearing and outer ring trap, the upper-end surface of inner ring is in the vertical direction higher than the upper-end surface of described outer ring, during match grinding, measure the height difference H between the upper-end surface of inner ring and the upper-end surface of outer ring
difference, according to the trap play Ga of the turntable bearing preset, to the upper-end surface of inner ring according to H
differencethe grinding capacity of-Ga carries out grinding.
10. match grinding method according to claim 9, is characterized in that: the height of described measurement inner ring is H, and the height distance measured between the upper-end surface of outer ring and the lower end surface of outer ring is Hw, described H
difference=H-Hw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506535.0A CN105134789B (en) | 2015-08-18 | 2015-08-18 | A kind of self-lubricating turntable bearing and its end-play match grinding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506535.0A CN105134789B (en) | 2015-08-18 | 2015-08-18 | A kind of self-lubricating turntable bearing and its end-play match grinding method |
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| Publication Number | Publication Date |
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| CN105134789A true CN105134789A (en) | 2015-12-09 |
| CN105134789B CN105134789B (en) | 2018-03-23 |
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| CN201510506535.0A Active CN105134789B (en) | 2015-08-18 | 2015-08-18 | A kind of self-lubricating turntable bearing and its end-play match grinding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108627073A (en) * | 2018-02-09 | 2018-10-09 | 洛阳轴承研究所有限公司 | A kind of detection of YRT turntables bearing axial play and matching method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105134789B (en) | 2018-03-23 |
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Effective date of registration: 20180518 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |