CN105221565A - A kind of double-row-ball roller bearing of six point cantact and channel processing method thereof and device - Google Patents
A kind of double-row-ball roller bearing of six point cantact and channel processing method thereof and device Download PDFInfo
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Abstract
The present invention relates to double-row-ball roller manufacture field, be specifically related to a kind of double-row-ball roller of six point cantact and channel processing method thereof and device.It comprises outer ring, inner ring, steel ball, retainer, inner ring is contained in outer ring, to it is characterized in that outside inner ring and be designed with respectively inside outer ring the biserial raceway groove of equal pitch, biserial raceway groove inside outer ring is sphere curved surface annular groove, the biserial raceway groove designed outside inner ring is a kind of peach type ditch annular groove be made up of the hyperboloid of two decentraction, and steel ball is contained between outer ring and inner ring by retainer.Advantage is that project organization is simply ingenious, by carrying out the design of peach type ditch annular groove to bear inner ring grooved railway, a point cantact is in the past made to become two-point contact, inner ring is stressed, by a bit becoming 2 points, inner ring strength become 2 then wear extent greatly reduce, processing method is improved rationally, solves bearing wear serious problems, substantially increases double-row-ball roller working life.
Description
Technical field
The present invention relates to double-row-ball roller manufacture field, be specifically related to a kind of double-row-ball roller of six point cantact and channel processing method thereof and device.
Background technique
Double-row-ball roller bearing in use, to bear radial force, double-row-ball roller in the past, the pressure that steel ball bears in raceway groove under stress is upper and lower two points, it is a point cantact that steel ball contacts with outer ring, and it is also a point that steel ball contacts with inner ring, normally outer ring non rotating when bearing uses, inner ring rotates, and such double-row-ball roller has four point cantact altogether up and down.Due to inner ring non rotating when double-row-ball roller uses, outer ring rotates, and the rate of wear of such inner ring is very fast; Wanting to improve bearing wear-resisting, be all strengthen from material technology, but material improves, and technique improves, and cost also will increase greatly, and common material technique can not be satisfied the demand, and domestic material technology does not reach requirement, only has import, and import then cost increases.
Summary of the invention
In order to solve the problem, the present invention proposes a kind of double-row-ball roller bearing of six point cantact and channel processing method thereof and device, project organization is simply ingenious, and processing method is improved rationally, solve bearing wear serious problems, substantially increase double-row-ball roller bearing working life.
In order to reach the problems referred to above, the present invention proposes following technological scheme:
A kind of double-row-ball roller bearing of six point cantact, it comprises outer ring, inner ring, steel ball, retainer, inner ring is contained in outer ring, to it is characterized in that outside inner ring and be designed with respectively inside outer ring the biserial raceway groove of equal pitch, biserial raceway groove inside outer ring is sphere curved surface annular groove, the biserial raceway groove designed outside inner ring is a kind of peach type ditch annular groove be made up of the hyperboloid of two decentraction, and steel ball is contained between outer ring and inner ring by retainer.
The sphere curved surface annular groove of described steel ball and outer ring has a point cantact, and on steel ball and inner ring, peach type ditch annular groove has two point of contact, and double-row-ball roller two arranges, and has six point of contact.
The double-row-ball roller bearing of six described point cantact is used for inner ring non rotating, in the roller bearing that outer ring rotates.
A processing technology for the double-row-ball roller bearing raceway groove grinding of six point cantact, is characterized in that following steps:
1) first to emery disc grinding, the cylindrical of emery disc processes the peach type ditch annular groove that two arrange the hyperboloid composition of sphere curved surface annular groove or decentraction side by side;
2) by the emery disc of machine shaping, the cylindrical of common not shaping emery wheel is polished, plain wheel Excircle machining is become two row spherical surface hills or peach type projection;
3) processing excircles, use cylindrical is that the outer ring inner circle of the plain wheel pair roller of two row spherical surface hills carries out corase grind processing, and process two row sphere curved surface annular grooves, plain wheel fast rotational, outer ring rotates at a slow speed, plain wheel radial grinding feeding simultaneously; After corase grind, again polished to the plain wheel of spherical surface hill by shaping emery disc, after polishing, the plain wheel of spherical surface hill carries out fine grinding, machine shaping to two row sphere curved surface annular grooves of outer ring again;
4) process inner circle, use cylindrical is that the plain wheel pair roller inner ring of two row peach type projections carries out corase grind processing, and process two row peach type ditch annular grooves, plain wheel fast rotational, inner ring rotates at a slow speed, plain wheel radial grinding feeding simultaneously; After corase grind, again polished to the plain wheel of peach type projection by shaping emery disc, after polishing, the plain wheel of peach type projection carries out fine grinding to two row peach type ditch annular grooves of inner ring again, machines.
A kind of processing device of double-row-ball roller bearing raceway groove grinding of six point cantact, it comprises frame, spindle rotation mechanism and grinding mechanism, described spindle rotation mechanism to be arranged in frame and to have rotatable main shaft and a workpiece holder, described grinding mechanism is arranged in frame also can do axial displacement along the relatively described main shaft of frame, described grinding mechanism has grinding main frame and displacement position-limiting mechanism, described grinding main frame has the emery wheel of a grinding work piece, bottom grinding main frame, two ends, left and right have left supporting plate and right supporting plate, described displacement position-limiting mechanism comprises a limiting stopper between described left supporting plate and right supporting plate, described displacement position-limiting mechanism also comprises one at left supporting plate or between right supporting plate and limiting stopper and can from withdrawing therebetween, be close to the cushion block of limiting stopper, described left supporting plate and right supporting plate are respectively provided with the locating stud of adjustable-length towards limiting stopper one end face, the difference of emery wheel feeding distance when described cushion block width equals two channel center distances or distinguishes grinding two raceway groove, described frame has an oil cylinder, the pushing shaft of oil cylinder installs described cushion block, described workpiece holder comprises the electric magnetic no-core clamp be connected on described main shaft and the eccentric fixture be installed in frame.
Advantage of the present invention is that project organization is simply ingenious, by carrying out the design of peach type ditch annular groove to bear inner ring grooved railway, a point cantact is in the past made to become two-point contact, inner ring is stressed, by a bit becoming 2 points, inner ring strength become 2 then wear extent greatly reduce, processing method is improved rationally, solves bearing wear serious problems, substantially increases double-row-ball roller working life.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the double-row-ball roller bearing of the present invention six point cantact.
Fig. 2 is the schematic diagram of the processing device of the double-row-ball roller bearing outer ring raceway grinding of six point cantact of the present invention.
Fig. 3 is the schematic diagram of the processing device of the double-row-ball roller bearing grinding raceway of inner ring of six point cantact of the present invention.
Embodiment
With reference to accompanying drawing 1, a kind of double-row-ball roller bearing of six point cantact, it comprises outer ring 1, inner ring 2, steel ball 3, retainer 4, inner ring 2 is contained in outer ring 1, the biserial raceway groove of equal pitch is designed with respectively inside outside inner ring 2 and outer ring 1, biserial raceway groove inside outer ring 1 is sphere curved surface annular groove, and outside inner ring 2, the biserial raceway groove of design is a kind of peach type ditch annular groove be made up of the hyperboloid of two decentraction, and steel ball 3 is contained between outer ring and inner ring by retainer 4.Between inner ring and outer ring, Sealing shield ring 5 is equipped with at two ends.
Described steel ball 3 has a point cantact with the sphere curved surface annular groove of outer ring 1, and steel ball 3 has two point of contact with peach type ditch annular groove on inner ring 2, and double-row-ball roller two arranges, and has six point of contact.
The double-row-ball roller of six described point cantact is used for inner ring 2 non rotating, in the roller bearing that outer ring 1 rotates.
A processing technology for the double-row-ball roller bearing raceway groove grinding of six point cantact, is specifically following steps:
1) first to emery disc grinding, the cylindrical of emery disc processes the peach type ditch annular groove that two arrange the hyperboloid composition of sphere curved surface annular groove or decentraction side by side;
2) by the emery disc of machine shaping, the cylindrical of common not shaping emery wheel is polished, plain wheel Excircle machining is become two row spherical surface hills or peach type projection;
3) processing excircles, use cylindrical is that the outer ring inner circle of the plain wheel pair roller of two row spherical surface hills carries out corase grind processing, and process two row sphere curved surface annular grooves, plain wheel fast rotational, outer ring rotates at a slow speed, plain wheel radial grinding feeding simultaneously; After corase grind, again polished to the plain wheel of spherical surface hill by shaping emery disc, after polishing, the plain wheel of spherical surface hill carries out fine grinding, machine shaping to two row sphere curved surface annular grooves of outer ring again;
4) process inner circle, use cylindrical is that the plain wheel pair roller inner ring of two row peach type projections carries out corase grind processing, and process two row peach type ditch annular grooves, plain wheel fast rotational, inner ring rotates at a slow speed, plain wheel radial grinding feeding simultaneously; After corase grind, again polished to the plain wheel of peach type projection by shaping emery disc, after polishing, the plain wheel of peach type projection carries out fine grinding to two row peach type ditch annular grooves of inner ring again, machines.
Fig. 2-3, a kind of processing device of double-row-ball roller bearing raceway groove grinding of six point cantact, it comprises frame, spindle rotation mechanism and grinding mechanism, described spindle rotation mechanism to be arranged in frame and to have rotatable main shaft 31 and a workpiece holder, described grinding mechanism is arranged in frame also can do axial displacement along the relatively described main shaft of frame, described grinding mechanism has grinding main frame and displacement position-limiting mechanism, described grinding main frame has the emery wheel of a grinding work piece, bottom grinding main frame, two ends, left and right have left supporting plate and right supporting plate, described displacement position-limiting mechanism comprises a limiting stopper between described left supporting plate 22-1 and right supporting plate 22-2, described displacement position-limiting mechanism also comprises one at left supporting plate or between right supporting plate and limiting stopper 41 and can from withdrawing therebetween, be close to the cushion block of limiting stopper, described left supporting plate and right supporting plate are respectively provided with the locating stud 42 of adjustable-length towards limiting stopper one end face, the difference of emery wheel 23-1 feeding distance when described cushion block 51 width equals two channel center distances or distinguishes grinding two raceway groove, described frame has an oil cylinder, the pushing shaft 52 of oil cylinder installs described cushion block, described workpiece holder comprises the electric magnetic no-core clamp 32 be connected on described main shaft and the eccentric fixture 33 be installed in frame.Be provided with a supporting base 33-1 in described frame, eccentric fixture 33 is fixed on supporting base 33-1 contacts with bearing outer ring 1 to be ground or inner ring 2 and provides support it and locate.
Single three-point contact type roller installed and used requirement in the past, must standard install, and the axle center of roller is unified with the casing axle center of installing, and installation requirement is high, once install not in place, will cause steel ball eccentric wear, service life of roller reduces greatly, for inner ring non rotating, outer ring rotates occasion, in the rotary course of roller outer ring, the track out-of-flatness walked, the right is high for a moment for left side height for a moment, biserial four point contact type roller will eccentric wear, service life of roller is caused greatly to reduce, and domestic biserial roller material technique itself is all lower than foreign level, under being applied to high load working condition, working life does not reach design far away needs level, how current domestic professional person is improving material property always, improve processing technology, improve on roller packaging technology and study, but effect is very not obvious, above-mentioned each side is once improve and will cause added cost, not as good as direct import external product.This product is transformed by processing technology with to product structure design, processing cost is low, technique is simple, and not high to material performance requirement, and such this patent overcomes the problems referred to above, when material technology cannot be improved, to the structure ingehious design of product, this patent made can reach designing requirement equally, and the life-span of roller improves greatly, meet design requirement, and cost is low.At present, regardless of professional standard or GB, all there is no the related introduction of biserial six point contact type roller, and single three point contact roller is applied to the not high occasion of installation precision, such as inner ring does not turn, under the large load condition that outer ring rotates, damage and more accelerate, those skilled in the art are caused to think inapplicable this kind of use occasion of single three dot structures, the technical merit external for biserial four point cantact roller can reach designing requirement completely, so those skilled in the art think that this structure is perfect, why we do not reach designing requirement, because our material technology level is not as external, by our domestic those skilled in the art described above also nobody can expect making two row six point contact type roller structures, and this product structure is not only afraid of eccentric wear, and it is less demanding to material technology, there is outstanding substantive distinguishing features and significant progress.
Claims (5)
1. the double-row-ball roller bearing of a point cantact, it comprises outer ring, inner ring, steel ball, retainer, inner ring is contained in outer ring, to it is characterized in that outside inner ring and be designed with respectively inside outer ring the biserial raceway groove of equal pitch, biserial raceway groove inside outer ring is sphere curved surface annular groove, the biserial raceway groove designed outside inner ring is a kind of peach type ditch annular groove be made up of the hyperboloid of two decentraction, and steel ball is contained between outer ring and inner ring by retainer.
2. the double-row-ball roller bearing of a kind of six point cantact according to claim 1, it is characterized in that the sphere curved surface annular groove of described steel ball and outer ring has a point cantact, on steel ball and inner ring, peach type ditch annular groove has two point of contact, and double-row-ball roller bearing two arranges, and has six point of contact.
3. the double-row-ball roller bearing of a kind of six point cantact according to claim 1, is characterized in that the double-row-ball roller of six described point cantact is for inner ring non rotating, in the roller bearing that outer ring rotates.
4. a processing technology for the double-row-ball roller bearing raceway groove grinding of six point cantact, is characterized in that following steps:
1) first to emery disc grinding, the cylindrical of emery disc processes the peach type ditch annular groove that two arrange the hyperboloid composition of sphere curved surface annular groove or decentraction side by side;
2) by the emery disc of machine shaping, the cylindrical of common not shaping emery wheel is polished, plain wheel Excircle machining is become two row spherical surface hills or peach type projection;
3) processing excircles, use cylindrical is that the outer ring inner circle of the plain wheel pair roller of two row spherical surface hills carries out corase grind processing, and process two row sphere curved surface annular grooves, plain wheel fast rotational, outer ring rotates at a slow speed, plain wheel radial grinding feeding simultaneously; After corase grind, again polished to the plain wheel of spherical surface hill by shaping emery disc, after polishing, the plain wheel of spherical surface hill carries out fine grinding, machine shaping to two row sphere curved surface annular grooves of outer ring again;
4) process inner circle, use cylindrical is that the plain wheel pair roller inner ring of two row peach type projections carries out corase grind processing, and process two row peach type ditch annular grooves, plain wheel fast rotational, inner ring rotates at a slow speed, plain wheel radial grinding feeding simultaneously; After corase grind, again polished to the plain wheel of peach type projection by shaping emery disc, after polishing, the plain wheel of peach type projection carries out fine grinding to two row peach type ditch annular grooves of inner ring again, machines.
5. the processing device of the double-row-ball roller bearing raceway groove grinding of a point cantact, it is characterized in that it comprises frame, spindle rotation mechanism and grinding mechanism, described spindle rotation mechanism to be arranged in frame and to have rotatable main shaft and a workpiece holder, described grinding mechanism is arranged in frame also can do axial displacement along the relatively described main shaft of frame, described grinding mechanism has grinding main frame and displacement position-limiting mechanism, described grinding main frame has the emery wheel of a grinding work piece, bottom grinding main frame, two ends, left and right have left supporting plate and right supporting plate, described displacement position-limiting mechanism comprises a limiting stopper between described left supporting plate and right supporting plate, described displacement position-limiting mechanism also comprises one at left supporting plate or between right supporting plate and limiting stopper and can from withdrawing therebetween, be close to the cushion block of limiting stopper, described left supporting plate and right supporting plate are respectively provided with the locating stud of adjustable-length towards limiting stopper one end face, the difference of emery wheel feeding distance when described cushion block width equals two channel center distances or distinguishes grinding two raceway groove, described frame has an oil cylinder, the pushing shaft of oil cylinder installs described cushion block, described workpiece holder comprises the electric magnetic no-core clamp be connected on described main shaft and the eccentric fixture be installed in frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510741322.6A CN105221565B (en) | 2015-11-05 | 2015-11-05 | The double-row-ball roller bearing and its channel processing method and device of a kind of six point contact |
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| CN201510741322.6A CN105221565B (en) | 2015-11-05 | 2015-11-05 | The double-row-ball roller bearing and its channel processing method and device of a kind of six point contact |
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| CN105221565B CN105221565B (en) | 2018-07-27 |
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Cited By (4)
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| CN106369062A (en) * | 2016-09-26 | 2017-02-01 | 安徽远丰回转支承有限责任公司 | Machining method of non-tooth bearing and bearing |
| CN109048566A (en) * | 2018-09-29 | 2018-12-21 | 慈溪新美培林精密轴承有限公司 | A kind of bearing dustproof groove milling tools and associated bearings dustproof groove technique |
| CN113878445A (en) * | 2021-09-23 | 2022-01-04 | 上海振华轴承总厂有限公司 | Grinding process method for blackening outer ring raceway on surface of crossed bearing |
| CN114473645A (en) * | 2022-02-18 | 2022-05-13 | 西北轴承有限公司 | High-speed high-precision machining method and device for double-row cylindrical roller bearing raceway and application |
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| CN114473645A (en) * | 2022-02-18 | 2022-05-13 | 西北轴承有限公司 | High-speed high-precision machining method and device for double-row cylindrical roller bearing raceway and application |
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Address after: 226500 No.189, South Yishou Road, Rucheng Town, Rugao City, Nantong City, Jiangsu Province Patentee after: Jiangsu Wanda Special Bearing Co.,Ltd. Address before: 226500 No.189, South Yishou Road, Rucheng Town, Rugao City, Nantong City, Jiangsu Province Patentee before: JIANGSU WANDA SPECIAL BEARING Co.,Ltd. |
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Address after: 226500 No. 333, Fushou East Road, Rucheng street, Rugao City, Nantong City, Jiangsu Province Patentee after: Jiangsu Wanda Special Bearing Co.,Ltd. Address before: 226500 No.189, South Yishou Road, Rucheng Town, Rugao City, Nantong City, Jiangsu Province Patentee before: Jiangsu Wanda Special Bearing Co.,Ltd. |