CN104653623A - Full rolling body inner integral ball bearing and manufacturing method thereof - Google Patents

Full rolling body inner integral ball bearing and manufacturing method thereof Download PDF

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Publication number
CN104653623A
CN104653623A CN201510095830.1A CN201510095830A CN104653623A CN 104653623 A CN104653623 A CN 104653623A CN 201510095830 A CN201510095830 A CN 201510095830A CN 104653623 A CN104653623 A CN 104653623A
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China
Prior art keywords
shaft
axle
bearing
raceway
male member
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CN201510095830.1A
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Chinese (zh)
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CN104653623B (en
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赵联春
赵思澄
陈淑英
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Shanghai F & S Bearing Tech Co Ltd
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Shanghai F & S Bearing Tech Co Ltd
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Priority to CN201510095830.1A priority Critical patent/CN104653623B/en
Publication of CN104653623A publication Critical patent/CN104653623A/en
Priority to PCT/CN2016/075431 priority patent/WO2016138867A1/en
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Publication of CN104653623B publication Critical patent/CN104653623B/en
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Abstract

The invention provides a full rolling body inner integral ball bearing and a manufacturing method thereof. The bearing comprises an outer ring, a shaft and a rolling body embedded between an outer ring raceway and a shaft raceway, wherein the shaft comprises a first shaft component and a second shaft component; the first shaft component is provided with a first branch raceway and a convex piece which extends out of a shaft section; the second shaft component is provided with a second branch raceway and a hole part matched with the convex piece; the first shaft component and the second shaft component are adhered and fastened in the axis direction of the bearing; the first branch raceway and the second branch raceway form the complete shaft raceway of the bearing. Compared with the prior art, the bearing provided by the invention has the following advantages that: (1), the bearing raceway is complete and has no gap; (2) the bearing with a seal can be manufactured without changing the exterior shape and installation dimension of the shaft; (3) the pairing processing efficiency is high and the precision is high; (4) each component of the shaft is rigidly fastened, and even if the components are in a stressed use state, micro separation can not occur, so that the operation stability, limit speed and operation reliability of the bearing are greatly improved.

Description

A kind of full rolling element shaft connecting bearing and manufacture method thereof
Technical field
The present invention relates to extraordinary technical field of rolling bearings, particularly the full rolling element shaft connecting bearing of one and manufacture method thereof.Full rolling body bearing refers to not be with retainer, and rolling element is arranged in the rolling bearing in raceway as much as possible; Shaft connecting bearing refers to that the inner ring of usual bearing is substituted by solid shaft or axle with holes (or claiming heavy wall inner ring), and former inner ring raceway directly processes the bearing on alternative axle.
Background technique
Shaft connecting bearing because of its compact structure, install simply just obtaining applying more and more widely.Full rolling body bearing because of not with retainer, inserted rolling element as much as possible and had: the application operating mode such as limiting temperature etc. of (1) bearing is no longer subject to the impact of retainer material, structure etc.; (2) because not making the fabricating cost of bearing be declined with retainer; (3) advantages such as the bearing capacity of bearing are drastically increased.Therefore, full rolling element shaft connecting bearing certainly will be more widely used in host computer systems such as logistics transmissions.
Existing full rolling body bearing, such as expire ball bearing, the method of filling out segment mouth or the loading of boring the full ball of method realization filling out ball between outer ring periphery to raceway groove face are opened in general employing at outer ring flange position and inner ring rib position, open and fill out segment mouth, exist: the defect that (1) raceway groove is filling out ball mouth position cannot make up, when causing ball to forward gap position to, just produce larger vibratory impulse; (2) for ball during anti-bearing operation runs from bearing channel from gap position, shift-up lopps limit stoper is needed; (3) because breach must reach the end face of rib from raceway groove, therefore, in gap side, bearing cannot carry out the defects such as dust sealing by installing dust cover, seal ring etc.; Ball filled out by brill, exist: (1) from bearing top circle cylinder to raceway groove face between punch not too easy; (2) must block with stifled post after having beaten hole, and stifled post is towards raceway groove one end, the shape that its head surface shape is difficult to be worked into raceway groove face is consistent, towards periphery one end, the shape that its head surface shape is difficult to be worked into external cylindrical surface is consistent, even if shape can be worked into basically identical, the state of just laminating concordant with periphery outside the inboard just laminating concordant with raceway groove face of stifled post, stifled post also cannot be adjusted to; (3) internal thread that stifled post generally adopts outside thread and fills out ball matches, and when outer ring raceway is thick to the thickness low LCL of periphery, very little, both cannot screw the defect such as firmly to the button number of screw thread.These defects can cause bearing machining difficulty to increase, assembling difficulty, machining accuracy and assembly precision are difficult to raising, the smoothness of operation of bearing is too poor, finally cause the operational reliability of bearing and service life cannot meet the requirement of main frame.
Existing full rolling body bearing, such as two half inner-ring bearing, inner ring is divided into two-part from the middle part of raceway, but there is no mutual embedding interlocking frame between two-part, therefore can not be secured to one another between two-part, must to be installed time could by two halves inner ring relative limit by installation shaft and axially stop block above thereof, and when manufacturing, be all the respectively fine finishing of two halves inner ring, do not match fine finishing, pairing assembling, the machining accuracy of bearing, assembly precision and running stability are affected.
Therefore, overcome the structural imperfection of existing full rolling body bearing and manufacture drawback, inventing new full rolling element shaft connecting bearing and manufacture method just seems very urgent and necessary.
Summary of the invention
The object of the present invention is to provide a kind of full rolling element shaft connecting bearing and manufacture method thereof, with overcome existing full rolling body bearing adopt the direction of axis line along lasso to open to fill out segment mouth or fill out ball along the radial direction processing of lasso, two half lasso does not carry out matching the many deficiencies and drawback that fine finishing etc. exists, thus make the designs simplification of full rolling element shaft connecting bearing, process easy, accuracy of manufacturing and improve, double-side dustproof sealing can be carried out, operate steadily reliable, the requirement of user to bearing operational reliability and service life can be met.
The object of the invention is to realize by following technological scheme.
The present invention is a kind of full rolling element shaft connecting bearing, for single-row raceway, comprise outer ring, axle, rolling element between embedding outer ring raceway and axle raceway, described axle comprises the first axle part part and second shaft section, the first axle part part is provided with first point of raceway and is provided with the male member stretching out shaft part, second shaft section is provided with second point of raceway and is provided with the hole portion with described male member adaptation, the first axle part part and second shaft section sturdy fastening at the axial direction of bearing, first point of raceway and second point of raceway form complete bearing shaft raceway.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part of the first axle part part is threaded shaft section, and the hole portion of second shaft section is tapped hole, and it is sturdy fastening that two parts screw mode by screw thread each other.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part of the first axle part part is threaded shaft section, and the hole portion of second shaft section is light through hole, and the mode that two parts are screwed by nut and the threaded shaft section stretching out hole portion is sturdy fastening.When light through hole is straight hole, nut is in outside second shaft section; When light through hole is the step hole comprising the counterbore laying nut, nut portion or be all within second shaft section.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part of the first axle part part is threaded shaft section or optical axis section, the hole portion of second shaft section is light through hole, male member head is with the annular groove laying back-up ring or retainer and stretch out light through hole, and two parts are sturdy fastening by the mode of laying back-up ring or retainer in annular groove.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part of the first axle part part is cross section is circle, with the circle of one to two plane or the optical axis section of many prismatics, the hole portion of second shaft section is cross section is light through hole that is circular or many prismatics, male member head is with pin-and-hole or rivet hole and stretch out light through hole, and two parts are sturdy fastening by the mode of riveting pin slotting toward hole in, bearing pin, rivet.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part of the first axle part part is threaded shaft section or optical axis section, the hole portion of second shaft section is tapped through hole or light through hole, male member stretches out tapped through hole or light through hole, and two parts are sturdy fastening by the mode of male member and through-hole inner surface or end face spot welding.
The present invention is a kind of full rolling element shaft connecting bearing, for biserial raceway, comprise outer ring, axle, rolling element between embedding outer ring biserial raceway and axle biserial raceway, described axle comprises the intermediate shaft part of two ends, left and right all with point raceway and is distributed in the left spindle unit of its left and right sides, respectively a band point of raceway and right spindle unit, the two ends of intermediate shaft part are equipped with the male member stretching out shaft part, left spindle unit and right spindle unit are provided with the hole portion with the male member adaptation of intermediate shaft part, male member on intermediate shaft part pierces into the hole portion of left spindle unit and right spindle unit
Or left spindle unit is provided with the male member stretching out shaft part, intermediate shaft part and right spindle unit are provided with the hole portion with the male member adaptation of left spindle unit, and the male member on left spindle unit pierces into the hole portion of intermediate shaft part and right spindle unit,
Three parts are sturdy fastening at the axial direction of bearing, on intermediate shaft part, point raceway on raceway and left spindle unit that divides of left end forms complete bearing shaft one row raceway, and on intermediate shaft part, point raceway on raceway and right spindle unit that divides of right-hand member forms another row raceway of complete bearing shaft.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part is threaded shaft section, and hole portion is tapped hole, and it is sturdy fastening that three spindle units screw mode by screw thread each other.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part is threaded shaft section, and hole portion is light through hole, and the mode that three spindle units are screwed by nut and the threaded shaft section stretching out hole portion is sturdy fastening.When light through hole is straight hole, nut is in outside spindle unit; When light through hole is the step hole comprising the counterbore laying nut, nut portion or be all within spindle unit.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part is threaded shaft section or optical axis section, hole portion is light through hole, and male member head is with the annular groove laying back-up ring or retainer and stretch out light through hole, and three spindle units are sturdy fastening by the mode of laying back-up ring or retainer in annular groove.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part is cross section is circle, with the circle of one to two plane or the optical axis section of many prismatics, hole portion is cross section is light through hole that is circular or many prismatics, male member head is with pin-and-hole or rivet hole and stretch out light through hole, and three spindle units are sturdy fastening by the mode of riveting pin slotting toward hole in, bearing pin, rivet.
Described full rolling element shaft connecting bearing, the male member stretching out shaft part is threaded shaft section or optical axis section, hole portion is tapped through hole or light through hole, and male member stretches out tapped through hole or light through hole, and three spindle units are sturdy fastening by the mode of male member and through-hole inner surface or end face spot welding.
The present invention is a kind of full rolling element shaft connecting bearing, for N row raceway, N >=3, comprise outer ring, axle, embed the rolling element between outer ring N row raceway and axle N row raceway, described axle comprises N+1 spindle unit, each with a point of raceway on left spindle unit and right spindle unit, all with two points of raceways on all the other spindle units, on each spindle unit, be provided with the male member stretching out shaft part, be provided with the hole portion with described male member adaptation, after male member puts in or wears via portion, by above male member and hole portion each other screw thread screw, at male member head mounting nuts fastening piece, back-up ring is installed, retainer, pin, bearing pin, rivet limit stoper, the mode of male member head and hole portion bore area or end face spot welding, make N+1 spindle unit sturdy fastening at the axial direction of bearing, N forms the N row raceway of bearing shaft to adjacent point raceway.
Above-mentioned single-row, biserial and the full rolling element shaft connecting bearing of multiple row, described axle is solid shaft or axle with holes, axle with holes is heavy wall bearing inner race, all with the through hole of equal diameter, coaxial inner conductor on each spindle unit forming axle with holes, the male member stretching out shaft part is now male member with holes, the monolateral wall thickness of male member is not less than 1 millimeter, and the hole portion on the outer surface of male member and corresponding shaft parts is adaptive.
Above-mentioned single-row, biserial and the full rolling element shaft connecting bearing of multiple row, described full rolling element shaft connecting bearing is open bearing not with dust seal, the single facer bearing of side band dust seal, the wherein a kind of of the dual face seals bearing of two sides all with dust seal.
Above-mentioned single-row, biserial and the full rolling element shaft connecting bearing of multiple row, described rolling element is ball, cylindrical roller, needle roller, tapered roller, spherical roller, barrel shaped roller.
The present invention is the manufacture method of above-mentioned full rolling element shaft connecting bearing, comprise the fine finishing manufacture method of full rolling element shaft connecting bearing axle, before fine finishing, according to each spindle unit of composition bearing shaft of design putting in order in the axial direction, fastening means under bearing completed products state, each spindle unit is sturdy fastening along the axial direction of axle, then the end face of fine finishing axle, outer round surface and raceway, method for fine machining comprises grinding, hard state turning and superfinishing and grinds.After fine finishing, before bearing assemble, load for realizing full rolling element, then axle is disassembled each spindle unit into forming axle.
Full rolling element shaft connecting bearing, generally be easy to expect axle to be split into two halves from raceway center axle, two-semiaxle gets through hole, then with bolt by Placement fastening for two-semiaxle, but this connection fastening means is to axle any one end diameter, and smaller (axle head diameter is usually all little than the maximum outside diameter of axle raceway-lip diameter and axle, sometimes even little a lot), do not allow the situation of punching again to lose efficacy, the present invention then solves this problem well.To the axle only having one end diameter smaller, according to of the present invention, there are two kinds of methods: (1) allows point raceway side of male member band in this part that end diameter is smaller of stretching out shaft part, and another part of corresponding axle does pore-forming portion; (2) axle head making diameter smaller becomes a part for the male member stretching out shaft part, and namely little axle head becomes a part for oneself offside, and does pore-forming portion with this part (certainly not containing little axle head) of oneself homonymy.The axle all smaller to two ends diameter, according to of the present invention, also way is had, a part is with the threaded shaft section stretched out exactly, and another part is with threaded hole (can not be at this moment certainly, tapped through hole again, can only be screw-threaded counterbore), two-part are threaded fastening each other, do not throw off for ensureing to be threaded, and can smear viscose glue before assembly toward screw thread vice division chief.Make concrete analyses of concrete problems process, in any case but, in principle, spirit with in fact all do not jump out scope of the present invention.
In addition, with reference to the thinking of two-part scyewed joint each other, the male member that the first axle part part stretches out shaft part can be the shaft part of band tapering, and the hole portion of second shaft section adaptation is the taper hole being with identical tapering, and the mode that the first axle part part and second shaft section are matched by the axis of cone and taper hole is each other sturdy fastening.
The male member stretching out shaft part of each parts of composition bearing shaft of the present invention, different according to the fastening means that each several part is tightened together, can be that Full Thread FT shaft part, full optical axis shaft part, segment optical axis add partial threads shaft part; Can along the circumferencial direction rut groove (when laying back-up ring, retainer) of axle, spile (when laying pin, bearing pin, rivet) along the radial direction of axle; The through hole of composition bearing shaft each several part of the present invention, different according to the fastening means that each several part is tightened together, can be the Full Thread FT through hole that specification is identical with screw thread on shaft part, the full light through hole slightly larger than shaft part section diameter; The present invention is according to the structure situation of bearing, when fastenings and the device axial direction allowing to be placed in along bearing exceedes the end face of each several part, projecting shaft segment length should be greater than the length of through hole, and there is no need the counterbore that processing in the part making through hole can supply to hold fastenings and device, otherwise, counterbore should be processed and hold fastenings and device.To fastening nuts mode, plain washer, elastic washer even locking nut should be added, to increase fastening effect.Allow situation according to bearing size and structure, also can take two or more fastening means to each parts of same bearing shaft, such as when assembling, again that nut is spot-welded together with band through hole part after taking nut check.
When each spindle unit of composition axle does not adopt threaded connection mode fastening, when especially adopting pin, bearing pin, rivet mode fastening, stretch out shaft part and can be designed to many prismatics, as quadrangular, through hole supporting with it can be designed to many prismatics, as four rib holes, compare with round structure, one be bearing when stressed work, between each spindle unit, more difficult generation is along the dislocation of bearing circumferencial direction, and two is that pin hole, rivet hole are beaten much easier than on cylndrical surface in rib plane.
When adopting each parts of the fastening composition axle of threaded connection mode, when such as adopting nut mode fastening, rotate together with nut (namely spinning) for preventing the parts of threaded shaft part, need to design and produce straight groove, cross recess, interior hex slot, outer six square toes, relative two facets etc. in one end of the not threaded shaft part of threaded shaft part parts, screw-driver or spanner can be adopted to be clamped by these parts, nut can be allowed fully fastening for each parts of composition axle.Specifically make such rotation prevention structure the need of additional designs and be designed to which kind of rotation prevention structure, needing to determine in conjunction with the restriction specific aim of main frame to the structure shape aspect that bearing proposes.
The single-row full rolling element shaft connecting bearing of the present invention, when rolling element is ball, cylindrical roller, tapered roller, spherical roller, needle roller, barrel shaped roller etc. respectively, bearing is that single-row full ball integral shaft holds, single-row full cylindrical roller shaft connecting bearing, single-row full tapered roller shaft connecting bearing, single-row full spherical roller shaft connecting bearing, single-row full needle roller shaft connecting bearing, single-row full barrel shaped roller shaft connecting bearing etc. respectively.
The full rolling element shaft connecting bearing of biserial of the present invention, when certain row rolling element is ball, cylindrical roller, tapered roller, spherical roller, needle roller, barrel shaped roller etc. respectively, these row are exactly ball row, cylindrical roller row, tapered roller row, spherical roller row, needle roller row, barrel shaped roller row etc., such as, if two row are all balls, be exactly that the full ball integral shaft of biserial holds; If two row are all cylindrical rollers, it is exactly the full cylindrical roller shaft connecting bearing of biserial; If row are balls, row are rollers, are exactly a completely row ball one row roller shaft connecting bearing.To full rolling element shaft connecting bearings more than three row or three row, the rest may be inferred.
The full rolling element shaft connecting bearing of the present invention, can find out, three row, four row even more multiple row, its theory of constitution is identical with biserial with single-row, and concrete structure is completely similar with biserial to single-row.
The full rolling element shaft connecting bearing of the present invention, outer ring, axle, rolling element material can be steel, engineering plastics, pottery, carbon graphite etc., same bearing, and outer ring, axle and the material of rolling element can be identical, also can be different; Rolling element material in same row also can be different, and have a carbon graphite ball in such as certain row, all the other each grains are steel ball.
The full rolling element shaft connecting bearing of the present invention, different according to applied environment, the modes such as various applicable heat treatment, thermo-chemical treatment, surface treatment can be taked to bearing outer ring, axle, rolling element etc.
The full rolling element shaft connecting bearing of the present invention can be the semi-open type bearing of open bearing not with sealing, the sealing of side band, also can be dual face seals bearing, the fluid lubrication such as lubricant oil, lubricating grease mode can be adopted, also can adopt solid lubrication mode or selflubricating mode.
The full rolling element shaft connecting bearing of the present invention, not only comprise the sense stricto full rolling body bearing being covered with rolling element along raceway for a week, also the rolling element number comprising layout can reach and outer ring and axle not to be deformed the large half-full rolling body bearing that just can not separate by external force, i.e. sensu lato full rolling body bearing.To large half-full rolling body bearing, can lubrication rolling element that some grains make by solid lubricant be put at the accumulative gap location of rolling element or put into the retainer fragment that some lobes make by solid lubricant, lubrication rolling element or retainer fragment are passed through from loss, for Bearing inner provides transfer lubrication.
The full rolling element shaft connecting bearing of the present invention, bearing shaft is resolved into the spindle unit that band stretches out the spindle unit of the male member of shaft part and the hole portion of band and described male member adaptation, each parts can require flexible design with main frame to the size and dimension of axle, the axle formed after each parts are fastened, its external structure and shape (install on main frame with bearing and use closely related) be normally with the shaft connecting bearing of retainer just the same, like this, namely a large amount of communications for change installation dimension and host subscriber carry out are avoided, can adopt again with normally with the processing technology mode that the shaft connecting bearing of retainer is the same, as the raceway-lip (i.e. the maximum outer round surface of axle) to axle can adopt efficiently, high-precision penetration type centerless grinding.
The full rolling element shaft connecting bearing of the present invention, each parts of composition axle adopt the machinery type processing such as turning respectively, then heat-treat, after heat treatment, in the foregoing manner each parts are tightened up and form complete raceway and complete axle, at this moment, to the end face of axle, raceway, rib carries out grinding, the fine finishing such as hard car and superfinishing, owing to adopting so each parts match grinding, join hard car and join superfinish mode, make work efficiency, relative-position error between the size and dimension precision of each parts self and each parts is greatly improved, after machining, axle enters assembling with this fastening means, after the raceway diameter of axle being measured to sorting and determining outer ring supporting with it, remove fastening again, axle is split up into each independently spindle unit, then one of them parts (band point raceway) are taken first to put into outer ring, fill up rolling element, and then another parts (with another point of raceway) of axle are fastening with those parts putting into outer ring, thus complete outer ring, the trap of axle and rolling element, afterwards, grease up, press-fit the assembling that dust-proof sealing device completes a whole set of bearing.It should be noted that, the bearing shaft after assembling and that root axle after fine finishing just the same, composition each parts of axle and building form all do not become, only in order to fill up the needs of rolling element, just have to be taken apart by that root axle after fine finishing before assembly.Such processing and assembling mode, drastically increase work efficiency and the machining accuracy of axle, and high machining accuracy has been brought in a whole set of bearing, thus improve the precision of a whole set of bearing, and then significantly improve operational reliability and the service life of a whole set of bearing.
The full rolling element shaft connecting bearing of the present invention, is applicable to all multi-host systems, particularly logistic transmission system, and such as, chain conveying system, belt conveying system, also can be used as the roller bearing on automotive painting line, food baking line, Idler bearing installs and uses.
The full rolling element shaft connecting bearing of the present invention and manufacture method thereof, overcome many deficiencies and the limitation of existing full rolling body bearing and manufacture method thereof, there is following outstanding advantages: (1) does not increase and decrease, change the outside mounting type of bearing shaft on main frame and installation dimension; (2) situation that is smaller to axle one or both ends end diameter, that cannot punch in this end is still effective, applicable; (3) each parts assembly fine finishing of axle, and when bearing assemble, this assembly relation is constant, thereby is achieved high work efficiency, high machining accuracy and assembling finished product accuracy; Assembly fine finishing after (4) two points of raceway docking, obtains complete, desirable raceway geometrical shape and geometric accuracy; (5) rigidity forming each parts of axle is fastening, and ensure that bearing is in stand under load using state, each parts do not have microsegregation phenomenon yet; (6) sealing dust-proof device can be press-fited with the normal bearing of band retainer is the same in bearing both sides, seal the bearing of (such as humidity, dust etc.) under being operated in the not high environment of cleanliness particularly important, and much roller bearing, Idler bearing are exactly be operated in the middle of such severe rugged environment; (7) hold full ball integral shaft, interior raceway can be designed, is processed as oval raceway groove or peach-shaped raceway groove, the running accuracy and smoothness of operation that make bearing, just not at the docking location of two points of raceways, are further promoted by the point of contact of such ball and raceway groove.In this way, the running accuracy of bearing, limit speed, operational reliability and service life is drastically increased.
Accompanying drawing explanation
The single-row full ball integral shaft of Fig. 1 holds-axle the first axle part part and second shaft section each other screw thread screw fastening schematic diagram;
The single-row full ball integral shaft of Fig. 2 holds-and axle the first axle part part and second shaft section be by the fastening schematic diagram of fastener nut;
The single-row full ball integral shaft of Fig. 3 holds-and axle the first axle part part and second shaft section be by the fastening schematic diagram of bounding means collar;
The single-row full ball integral shaft of Fig. 4 holds-and axle the first axle part part and second shaft section be by bounding means pin fastener schematic diagram;
The single-row full ball integral shaft of Fig. 5 holds-and axle the first axle part part and second shaft section be by the fastening schematic diagram of spot welding;
The single-row full ball integral shaft of Fig. 6 holds-and axle is axle with holes, i.e. heavy wall bearing inner race, and the first axle part part and second shaft section each other screw thread screw fastening schematic diagram;
The single-row full ball integral shaft of Fig. 7 holds-and axle is axle with holes, i.e. heavy wall bearing inner race, and the first axle part part and second shaft section are by the fastening schematic diagram of fastener nut;
The full ball integral shaft of Fig. 8 biserial holds-and axle intermediate shaft part two ends are all with and stretch out shaft part, and three parts are by the fastening schematic diagram of fastener nut;
The full ball integral shaft of Fig. 9 biserial holds-and the left spindle unit band of axle stretches out shaft part, and three parts are by the fastening schematic diagram of fastener nut;
The full ball integral shaft of single-row four point cantact of Figure 10 holds-and axle is axle with holes, i.e. heavy wall bearing inner race, and the first axle part part and second shaft section each other screw thread add the fastening schematic diagram of collar again after screwing.
Code name explanation in figure
In Fig. 1,11 outer ring 12 axle 13 ball 14 dust cover 15 back-up ring 121 axle the first axle part parts, band stretches out shaft part 122 axle second shaft section, band through hole
In Fig. 2,21 outer ring 22 axle 23 ball 24 dust cover 221 axle the first axle part parts, band stretches out shaft part 222 axle second shaft section, band through hole 223 tightening nut 224 washer combinations
In Fig. 3,31 outer ring 32 axle 33 ball 34 dust cover 321 axle the first axle part parts, band stretches out shaft part 322 axle second shaft section, band through hole 323 limiting retainer ring
In Fig. 4,41 outer ring 42 axle 43 ball 44 dust cover 421 axle the first axle part parts, band stretches out shaft part 422 axle second shaft section, band through hole 423 position-limitting pin
In Fig. 5,51 outer ring 52 axle 53 ball 54 dust cover 521 axle the first axle part parts, band stretches out shaft part 522 axle second shaft section, and band through hole 523 welds heap
In Fig. 6,61 axles of outer ring 62 with through hole, i.e. heavy wall bearing inner race 63 ball 64 dust cover 65 back-up ring 621 axle the first axle part part, band stretches out the through hole 622 axle second shaft section of shaft part and axle, band through hole
In Fig. 7,71 axles of outer ring 72 with through hole, i.e. heavy wall bearing inner race 73 ball 74 dust cover 721 axle the first axle part part, band stretches out the through hole 722 axle second shaft section of shaft part and axle, band through hole 723 tightening nut 724 washer combinations
In Fig. 8,81 axle 83 first row ball 84 secondary series ball 85 dust cover 821 axle intermediate shaft part-two ends, outer ring 82 are all with and are stretched out the right spindle unit of shaft part 822 axle left spindle unit-band through hole 823 axle-band through hole 824 tightening nut 825 washer combinations
In Fig. 9, the 91 outer ring 92 left spindle unit-bands of axle 93 first row roller 94 secondary series roller 921 axle stretch out the right spindle unit of shaft part 922 axle intermediate shaft part-band through hole 923 axle-band through hole 924 tightening nut 925 washer combinations
In Figure 10,101 axles of outer ring 102 with through hole, i.e. heavy wall bearing inner race 103 ball 104 dust cover 105 back-up ring 1021 axle the first axle part part, band stretches out the through hole 1022 axle second shaft section of shaft part and axle, band through hole 1023 collar.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention in detail.
Embodiment one
Embodiment one holds for single-row full ball integral shaft, and it is fastening that the first axle part part and second shaft section screw mode by screw thread each other.
As shown in Figure 1, comprise outer ring 11, axle 12, ball 13, dust cover 14 and back-up ring 15, its axis 12 by band first point of raceway groove and stretch out shaft part male member the first axle part part 121 and band second point of raceway groove and form with the second shaft section 122 in the hole portion of male member adaptation.The shaft part stretched out is threaded shaft section, hole portion is tapped through hole, and the first axle part part 121 and second shaft section 122 each other screw thread screw fastening for axle 12, after fastening, the first axle part part 121 and second shaft section 122 fit top in fact, and on point raceway groove and 122 on 121, a point raceway groove docking forms bearing shaft raceway groove.
This single-row shaft connecting bearing is a roller bearing, former normal non-full ball bearing band retainer, the part that namely left end of axle exceeds bearing channel rib left side is exactly six square toes, and the part that namely right-hand member of axle exceeds bearing channel rib right side is exactly thread spindle, is an axle be made into integration.With six square toes of spanner clamp axis left end, just the threaded shaft section of axle low order end can be screwed in the tapped hole on main frame, thus complete the installation of bearing.
In order to improve the bearing capacity of bearing or not reduce costs with retainer or consider that retainer can shake by the vibratory impulse operating mode of bearing and disconnected cannot be with the reasons such as retainer, need the primitive axis of band retainer to hold to be transformed into full ball bearing, but wish not change installation method and installation dimension that primitive axis holds, for this reason, according to the claims in the present invention, axle is decomposed into the first axle part part and second shaft section, the first axle part part is 121 parts of band first point of raceway groove and the male member stretching out shaft part, second shaft section is 122 parts in band second point of raceway groove and the hole portion with male member adaptation, can find out, former non-full ball bearing exceeds the threaded shaft section of bearing channel rib right side, directly become the part that the first axle part part 121 stretches out the male member of shaft part.
For ensureing that point raceway groove on 121 and 122 two spindle units can gapless dock, needing to be screwed into the end by 122, for this reason, the right side of 122 processing two small cylindrical openings, exerts oneself for lower ejector lever.The mounting type of this bearing on main frame is exactly six square toes of clamping 121 left end, the threaded shaft section of 121 right-hand members is made to screw in the screw of main frame, can find out, the process of installing also is the process of tightening up 121 and 122 in fact, so, when need not worry bearing working, the bearing operation that the microsegregation of two points of raceway grooves causes is not steadily and even the problem lost efficacy.
The technological means that the full ball of the present embodiment realizes is not adopt to open the mode of filling out segment mouth, and therefore, the raceway groove rib of bearing outer ring and axle is not subject to any damage, so can adopt dust-proof sealing device, as diagram dust cover 14 and back-up ring 15.Dust-proof sealing device is most important to the bearing operated under non-clean environment.
The first axle part part 121 and second shaft section 122 separately make, can be completed by turn-milling cutting, then heat-treat, after heat treatment, by two parts each other screw thread screw fastening, carry out the fine finishing of axle raceway groove and raceway groove rib (the maximum outer round surface of axle), such as grinding, hard car and superfinishing, after fine finishing completes, enter assembling, after measurement sorting is carried out to the raceway diameter of axle, for filling up ball in raceway groove, second shaft section 122 need be screwed off from the first axle part part 121, the first axle part part 121 of axle is put into the outer ring 11 matched with it, fill up ball 13, screw in the second shaft section 122 of axle and make two points of raceway grooves sturdy, at this moment full ball integral shaft bearing outer-ring 11 is just completed, the trap of axle 12 and ball 13, then punching press dust cover 14, back-up ring 15 just completes the assembling of a whole set of bearing.For ensureing high bearing assemble precision and running precision, be assembled together 121 and 122 match grinding, 121 and 122 when joining hard car or join superfinishing just.
Embodiment two
Embodiment two is that single-row full ball integral shaft holds, and it is fastening that the first axle part part and second shaft section pass through fastener nut.
As shown in Figure 2, comprise outer ring 21, axle 22, ball 23, dust cover 24, its axis 22 by band first point of raceway groove and stretch out shaft part male member the first axle part part 221 and band second point of raceway groove and form with the second shaft section 222 in the hole portion of male member adaptation, 221 threaded shaft sections stretched out pass the light through hole of 222, the threaded shaft section stretched out by nut 223 and 221 screw realize 221 and 222 fastening, for making fastening effect better, employ packing ring 224.
For ensure the first axle part part 221 and second shaft section 222 conscientiously laminating hold out against, to prevent in the process of tightening nut 223 221 to spin, machined straight groove at the rightmost side end face of 221, like this, in the process of tightening nut 223, just can withstand 221 with flat head screw-driver, prevent it from spinning.
Can find out, be no matter the through hole stretching out shaft part or 222 of 221, be all write an article in the inside of axle 22, do not have influence on the outside installation dimension of 22, therefore, mounting type of this single-row full ball bearing is identical with mounting type of its normal band retainer bearing.
The processing of this bearing and trap assembling mode and embodiment one closely similar, after together with the first axle part part 221 and second shaft section 222 are fitted in nut 223 is fastening, to axle raceway groove and raceway groove rib (the maximum outer round surface of axle) fine finishing, during assembling, first by one of them parts of axle, such as 221 put into the outer ring 21 of wanting trap, fill up ball 23, then another parts 222 of axle are put into, 221 stretch out shaft part through 222 through hole, screw with nut 223 and the threaded shaft section stretched out, realize the fastening of axle 22 the first axle part part 221 and second shaft section 222.
Embodiment three
Embodiment three is that single-row full ball integral shaft holds, and it is fastening that the first axle part part and second shaft section pass through limiting retainer ring.
As shown in Figure 3, comprise outer ring 31, axle 32, ball 33, dust cover 34, its axis 32 by band first point of raceway groove and stretch out shaft part male member the first axle part part 321 and band second point of raceway groove and form with the second shaft section 322 in the hole portion of male member adaptation, the 321 optical axis sections of stretching out through 322 light through hole, the draw-in groove putting into male member head by collar 323 realize 321 and 322 fastening.
Single-row full ball integral shaft described in this embodiment's bearing and embodiment two holds closely similar, with embodiment two unlike, the first axle part part 321 and second shaft section 322 fastening by collar 323.
For this reason, the head of the male member of shaft part is stretched out with the annular groove laying collar at the first axle part part 321, after the male member of the first axle part part 321 is sturdy along the axial direction of bearing through the through hole of second shaft section 322, two parts, put in annular groove collar 322 by the first axle part part 321 and second shaft section 322 spacing fastening, first point of raceway groove on the first axle part part 321 and second point of raceway groove in second shaft section 322 form complete bearing shaft raceway groove.
The first axle part part is identical with embodiment two with the assembly method for fine machining of second shaft section.
Embodiment 4
Embodiment four is that single-row full ball integral shaft holds, and it is fastening that the first axle part part and second shaft section pass through position-limitting pin.
As shown in Figure 4, comprise outer ring 41, axle 42, ball 43, dust cover 44, its axis 42 by band first point of raceway groove and stretch out shaft part male member the first axle part part 421 and band second point of raceway groove and form with the second shaft section 422 in the hole portion of male member adaptation, the 421 optical axis sections of stretching out through 422 light through hole, inserted by pin 423 in the pin hole of male member head realize 421 and 422 fastening.
Single-row full ball integral shaft described in this embodiment's bearing and embodiment two holds closely similar, with embodiment two unlike, the first axle part part 421 and second shaft section 422 spacing fastening by pin 423.
For this reason, the head of the male member of shaft part is stretched out with pin-and-hole at the first axle part part 421, after the male member of the first axle part part 421 is sturdy along the axial direction of bearing through the through hole of second shaft section 422, two parts, put in pin-and-hole pin 423 by the first axle part part 421 and second shaft section 422 spacing fastening, first point of raceway groove on the first axle part part 421 and second point of raceway groove in second shaft section 422 form complete bearing shaft raceway groove.
The first axle part part 421 is identical with embodiment two with the assembly method for fine machining of second shaft section 422.
Embodiment five
Embodiment five is that single-row full ball integral shaft holds, and it is fastening that the first axle part part and second shaft section pass through spot welding.
As shown in Figure 5, comprise outer ring 51, axle 52, ball 53, dust cover 54, its axis 52 by band first point of raceway groove and stretch out shaft part male member the first axle part part 521 and band second point of raceway groove and form with the second shaft section 522 in the hole portion of male member adaptation, the 521 optical axis sections of stretching out through 522 light through hole, by spot welding (weldering heap as Suo Shi 523) realize 521 and 522 fastening.
Single-row full ball integral shaft described in this embodiment's bearing and embodiment two holds closely similar, with embodiment two unlike, the first axle part part 521 and second shaft section 522 fastening by spot welding.
For this reason, after the male member of the first axle part part 521 is sturdy along the axial direction of bearing through the through hole of second shaft section 522, two parts, at male member and through-hole inner surface place or/and the spot welding of through hole end, by the first axle part part 521 and second shaft section 522 fastening, first point of raceway groove on the first axle part part 521 and second point of raceway groove in second shaft section 522 form complete bearing shaft raceway groove.
Although the first axle part part 521 and second shaft section 522 are tightened together by the mode of spot welding during assembling, when the first axle part part 521 and second shaft section 522 assembly fine finishing, or with embodiment two, two parts tighten together by using nuts.
Embodiment six
Embodiment six holds for single-row full ball integral shaft, and axle 62 is axle with holes and heavy wall bearing inner race, and it is fastening that the first axle part part 621 and second shaft section 622 screw mode by screw thread each other.
This embodiment and embodiment one closely similar, only embodiment one solid shaft becomes axle with holes here and heavy wall bearing inner race 62, and the first axle part part 621 is with first point of raceway groove and the male member stretching out threaded shaft section, and obviously, axis hole all drops on the first axle part part; Second shaft section 622 is with second point of raceway groove and the logical screw with threaded shaft section male member adaptation, by the tapped through hole on the hollow thread shaft part of the first axle part part 621 and second shaft section 622 each other screw thread screw, by the first axle part part 621 and second shaft section 622 sturdy fastening, first point of raceway groove and second point of raceway groove form complete axle raceway groove with holes.
The first axle part part 621 and second shaft section 622 assembly is fastening carries out fine finishing, method is with embodiment one.
Embodiment seven
Embodiment seven is that single-row full ball integral shaft holds, and axle 72 is axle with holes and heavy wall bearing inner race, and it is fastening that the first axle part part 721 and second shaft section 722 pass through fastener nut.
This embodiment and embodiment two closely similar, only embodiment two solid shaft becomes axle with holes here and heavy wall bearing inner race 72, the first axle part part 721 is with first point of raceway groove and the male member stretching out threaded shaft section, obviously, axis hole all drops on the first axle part part 721, and the external diameter of threaded shaft section at least should be larger than the internal orifice dimension of axle 2 millimeters; Second shaft section 722 is with second point of raceway groove and the light through hole with threaded shaft section male member adaptation, the hollow thread shaft part of the first axle part part 721 is through after the light through hole in second shaft section 722, screw with nut 723, thus by the first axle part part 721 and second shaft section 722 sturdy fastening, first point of raceway groove and second point of raceway groove form complete axle raceway groove with holes.
The first axle part part 721 and second shaft section 722 assembly is fastening carries out fine finishing, method is with embodiment two.
Embodiment eight.The full ball integral shaft of biserial holds, the male member of two end band projecting shaft sections of intermediate shaft part.
As shown in Figure 8, comprise outer ring 81, axle 82, first row ball 83, secondary series ball 84, dust cover 85, its axis 82 stretches out the intermediate shaft part 821 of the male member of shaft part by band two points of raceway grooves and two, the left spindle unit 822 of band point raceway groove and through hole, the right spindle unit 823 of band point raceway groove and through hole forms, 821 threaded shaft sections stretched out are respectively left through the through hole of left spindle unit 822, to the right through the through hole of right spindle unit 823, screw respectively by 821 and 822 by the nut 824 of both sides with the screw thread stretched out on shaft part, 821 and 823 tighten up, for strengthening fastening effect, have employed packing ring 825.
Similar with previous embodiment, the full ball integral shaft of this biserial carries out the fine finishing (match grinding, join hard car, join superfinishing) of axial end, raceway groove and raceway groove rib (the maximum outer round surface of axle) after holding and three parts of composition axle can being tightened together equally, and when assembling combination relation and built-up sequence constant.
During assembling, first put in the middle of outer ring by the intermediate shaft part 821 of band two points of raceway grooves, next the assembly method of each row is with embodiment two.
Embodiment nine.The full cylindrical roller shaft connecting bearing of biserial, left spindle unit band stretches out the male member of shaft part.
As shown in Figure 9, comprise outer ring 91, axle 92, first row roller 93, secondary series roller 94, its axis 92 is by being with the intermediate shaft part 922 of the left spindle unit 921 of the male member dividing raceway and stretch out shaft part, band two points of raceways and through hole, being with and dividing the right spindle unit 923 of raceway groove and through hole to form, 921 threaded shaft sections stretched out are respectively to the right through the through hole of intermediate shaft part 922, the through hole of right spindle unit 923, to be screwed with the screw thread stretched out on shaft part by nut 924 and tighten together 922,923 with 921, for strengthening fastening effect, have employed packing ring 925.
Similar with previous embodiment, the full cylindrical roller shaft connecting bearing of this biserial carries out the fine finishing (match grinding, join hard car, join superfinishing) of axial end, raceway and raceway-lip (the maximum outer round surface of axle) after three parts of composition axle can being tightened together equally, and when assembling combination relation and built-up sequence constant.
During assembling, first put in the middle of outer ring 91 by the intermediate shaft part 922 of composition axle, next the assembly method of each row is with embodiment two.
Embodiment 10
Embodiment 10 holds for the full ball integral shaft of single-row four point cantact, and axle 102 is axle with holes and heavy wall bearing inner race, and the first axle part part 1021 and second shaft section 1022 add collar 1023 again by screw thread each other composite fastener mode after screwing is fastening.
This embodiment and embodiment one have similarity, only embodiment one solid shaft becomes axle with holes here and heavy wall bearing inner race 102, bearing channel becomes peach-shaped raceway groove or elliptic channel for meeting four point cantact by single circular arc raceway groove, the first axle part part 1021 is with first point of raceway groove and the male member stretching out threaded shaft section, obviously, axis hole all drops on the first axle part part 1021; Second shaft section 1022 is with second point of raceway groove and the logical screw with threaded shaft section male member adaptation, by the tapped through hole on the hollow thread shaft part of the first axle part part 1021 and second shaft section 1022 each other screw thread screw, be added to the composite fastener mode of placing limiting retainer ring 1023 in the draw-in groove of male member head, by the first axle part part 1021 and second shaft section 1022 sturdy fastening, first point of raceway groove and second point of raceway groove form the raceway groove that complete axle with holes and ball have two point of contact.
The first axle part part 1021 and second shaft section 1022 assembly is fastening carries out fine finishing, method is with embodiment one.
It should be noted that, more than only give section Example, in fact, according to principle of the present invention and content, can have very many, unusual specific embodiment, they all have following general character: (1) the present invention does not destroy the installation dimension in bearing shaft, therefore, the assembly relation of the full rolling element shaft connecting bearing of the present invention and main frame, does not change because of full rolling element; (2) the present invention does not destroy the raceway-lip of bearing shaft, therefore, and can to bearing press mounting seal ring, dust cover, back-up ring, dust sealing assembly etc. as normal bearing; (3) the present invention can accomplish, when the shaft section diameter that axle exceeds raceway-lip end face is less, can not punch on this less shaft part, also the fastening of several parts forming axle can be realized, as the most right members shaft part of embodiment one and embodiment two, diameter is smaller, does not just punch above; (4) each parts of the present invention adopt the screw thread carried each other screw fastening or adopt fastening nuts, and tightness does not fluff because bearing installs, but constant or become tighter, ensure that the gapless of every two point raceways that connect is docked; (5) all each parts forming axle have identical raceway-lip diameter, create precondition for each parts carry out efficient, high-precision assembly fine finishing.Make the full rolling element shaft connecting bearing of the present invention significantly be different from existing band thus and fill out the full rolling element shaft connecting bearing that ball filled out by the full rolling element shaft connecting bearing of segment mouth and band, and there is following outstanding feature: (1) does not increase and decrease, change the outside mounting type of bearing shaft on main frame and installation dimension; (2) situation that is smaller to axle one or both ends end diameter, that cannot punch in this end is still effective, applicable; (3) each parts assembly fine finishing of axle, and when bearing assemble, this assembly relation is constant, thereby is achieved high work efficiency, high machining accuracy and assembling finished product accuracy; Assembly fine finishing after (4) two and half raceway docking, obtain complete, desirable raceway geometrical shape and geometric accuracy, raceway is without any wound; (5) rigidity forming each parts of axle is fastening, and ensure that bearing is in stand under load using state, each parts do not have microsegregation phenomenon yet; (6) sealing dust-proof device can be press-fited with the normal bearing of band retainer is the same in bearing both sides, seal the bearing of (such as humidity, dust etc.) under being operated in the not high environment of cleanliness particularly important, and much roller bearing, Idler bearing are exactly be operated in the middle of such severe rugged environment; (7) full ball integral shaft is held, can by axle channel design, be processed as oval raceway groove or peach-shaped raceway groove, the running accuracy and smoothness of operation that make bearing, just not at the docking location of two halves raceway groove, are further promoted by the point of contact of such ball and raceway groove.In this way, the running accuracy of bearing, limit speed, operational reliability and service life is drastically increased.
Be only several specific embodiments of the application above, but the application is not limited thereto, the changes that any person skilled in the art can think of, all should drops in the protection domain of the application.

Claims (13)

1. a full rolling element shaft connecting bearing, it is single-row raceway, comprise outer ring, axle, rolling element between embedding outer ring raceway and axle raceway, it is characterized in that, described axle comprises the first axle part part and second shaft section, the first axle part part is provided with first point of raceway and is provided with the male member stretching out shaft part, second shaft section is provided with second point of raceway and is provided with the hole portion with described male member adaptation, the first axle part part and second shaft section sturdy fastening at the axial direction of bearing, first point of raceway and second point of raceway form complete bearing shaft raceway.
2. full rolling element shaft connecting bearing according to claim 1, it is characterized in that, the male member stretching out shaft part of the first axle part part is threaded shaft section, and the hole portion of second shaft section is tapped hole, and it is sturdy fastening that two parts screw mode by screw thread each other.
3. full rolling element shaft connecting bearing according to claim 1, is characterized in that, the male member stretching out shaft part of the first axle part part through the hole portion of second shaft section, two parts by the head setting fastening elements of male member or the mode of axial limiting part sturdy fastening.
4. the full rolling element shaft connecting bearing according to claim 1 or 3, it is characterized in that, the male member stretching out shaft part of the first axle part part is threaded shaft section, the hole portion of second shaft section is straight light through hole, fastening piece is nut, the mode that two parts are screwed by nut and the threaded shaft section stretching out hole portion is sturdy fastening, and nut is in outside second shaft section.
5. the full rolling element shaft connecting bearing according to claim 1 or 3, it is characterized in that, the male member stretching out shaft part of the first axle part part is threaded shaft section, the hole portion of second shaft section is the step hole comprising the counterbore laying fastening piece, fastening piece is nut, the mode that two parts are screwed by nut and the threaded shaft section that stretches out hole portion is sturdy fastening, nut portion or be all within second shaft section.
6. full rolling element shaft connecting bearing according to claim 1, it is characterized in that, described the first axle part part is solid shaft or band through hole axle, and band through hole axle is heavy wall bearing inner race, the monolateral wall thickness stretching out the male member of shaft part is not less than 1 millimeter, and the hole portion in the outer surface of male member and second shaft section is adaptive.
7. full rolling element shaft connecting bearing according to claim 1, it is characterized in that, described full rolling element shaft connecting bearing is open bearing, the single facer bearing of side band dust seal, the wherein one of the dual face seals bearing of both sides all with dust seal not with dust seal.
8. full rolling element shaft connecting bearing according to claim 1, it is characterized in that, described rolling element is ball, cylindrical roller, needle roller, tapered roller, spherical roller, barrel shaped roller.
9. a full rolling element shaft connecting bearing, it is biserial raceway, comprise outer ring, axle, rolling element between embedding outer ring biserial raceway and axle biserial raceway, it is characterized in that, described axle comprises the intermediate shaft part of two ends, left and right all with point raceway and is distributed in the left spindle unit of its left and right sides, respectively a band point of raceway and right spindle unit, the two ends of intermediate shaft part are equipped with the male member stretching out shaft part, left spindle unit and right spindle unit are provided with the hole portion with the male member adaptation of intermediate shaft part, male member on intermediate shaft part pierces into the hole portion of left spindle unit and right spindle unit
Or left spindle unit is provided with the male member stretching out shaft part, intermediate shaft part and right spindle unit are provided with the hole portion with the male member adaptation of left spindle unit, and the male member on left spindle unit pierces into the hole portion of intermediate shaft part and right spindle unit,
Three spindle units are sturdy fastening at the axial direction of bearing, on intermediate shaft part, point raceway on raceway and left spindle unit that divides of left end forms complete bearing shaft one row raceway, and on intermediate shaft part, point raceway on raceway and right spindle unit that divides of right-hand member forms another row raceway of complete bearing shaft.
10. full rolling element shaft connecting bearing according to claim 9, it is characterized in that, the male member stretching out shaft part is threaded shaft section, and hole portion is tapped hole, and it is sturdy fastening that three spindle units screw mode by screw thread each other.
11. full rolling element shaft connecting bearings according to claim 9, is characterized in that, the male member stretching out shaft part through behind the hole portion of two other spindle unit, by the head setting fastening elements of male member or axial limiting part by sturdy fastening for three spindle units.
12. 1 kinds of full rolling element shaft connecting bearings, it is N row raceways, N >=3, comprise outer ring, axle, embed the rolling element between outer ring N row raceway and axle N row raceway, it is characterized in that, described axle comprises N+1 spindle unit, each with a point of raceway on left spindle unit and right spindle unit, all with two points of raceways on all the other spindle units, on each spindle unit, be provided with the male member that stretches out shaft part and/or be provided with the hole portion with described male member adaptation, after male member puts in or wears via portion, make N+1 spindle unit sturdy fastening at the axial direction of bearing, N forms the N row raceway of bearing shaft to adjacent point raceway.
The manufacture method of 13. full rolling element shaft connecting bearings according to claim 1 or 9 or 12, comprise the fine finishing manufacture method of full rolling element shaft connecting bearing axle, it is characterized in that, before fine finishing, according to each spindle unit of composition bearing shaft of design putting in order in the axial direction under bearing completed products state, fastening means, each spindle unit is sturdy fastening along the axial direction of axle, then the end face of fine finishing axle, outer round surface and raceway, method for fine machining comprises grinding, hard state turning and superfinishing are ground, after fine finishing, before bearing assemble, load for realizing full rolling element, again axle is disassembled each spindle unit into forming axle.
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轴承套圈的车削工艺过程;中国轴承工业协会职工教育委员会教材编审室;《轴承车工工艺学》;19970531;70 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016138867A1 (en) * 2015-03-04 2016-09-09 上海斐赛轴承科技有限公司 Coupling bearing filled with rolling elements, and manufacturing method thereof
CN106438711A (en) * 2016-11-09 2017-02-22 安徽千禧精密轴承制造有限公司 Inner ring combined type high-precision bearing
CN106763208A (en) * 2016-11-09 2017-05-31 安徽千禧精密轴承制造有限公司 A kind of outer ring assembling high-precision bearing
CN110905925A (en) * 2019-11-14 2020-03-24 安徽千禧精密轴承制造有限公司 Improved bearing

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