CN208951125U - A kind of novel high speed high-speed rail wheel shaft power bearing - Google Patents

Abstract

The utility model relates to high speed high-speed rail wheel shaft power bearings.Propose a kind of novel high speed high-speed rail wheel shaft power bearing, the variable diameter centre circle of middle Place is equipped with including one, two double half outer collars, one deep groove ball bearing outer collar, two double half inside races and inside and outside two layers of rolling element: double row angular contact spherical rolling track body is set at the middle part of variable diameter centre circle inner periphery, spherical rolling body is respectively set in track, in the both ends spacing distance of double row angular contact spherical rolling track body, annulus roller track is respectively set, annulus roller is respectively set in track, the utility model utilizes the Advantage Creation of the spherical rolling body two-point contact pure rolling friction mechanical structure of middle Place, to carry joint load, reduce the friction of bearing, improve the revolving speed and running accuracy of bearing, the cooperation of annulus roller and raceway cambered surface is utilized simultaneously, it is uniformly distributed bearing load, to reduce the friction and fever of bearing, improve bearing capacity And velocity of rotation.

Description

A kind of novel high speed high-speed rail wheel shaft power bearing

Technical field

The utility model relates to high-speed rail bearings, the auxiliary bearing of all kinds of aerotrains.

Background technique

Current: the high-speed rail bearing of World Developed Countries manufacture is still to rely on advanced bearing material and technology manufacture Whole friction conventional monolayers tapered roller bearing, research data show: the mechanical structure presence of traditional tapered roller bearing is permitted More critical defects, such as:

1, between the roller in conventional monolayers tapered roller bearing and inside and outside lasso raceway, between roller and retainer, rolling The driving force that on bearing about 1/2 can be will act between son and lubricating grease during rotating and doing work is converted into frictional heat energy, because This: the frictional resistance and abrasion that traditional bearing generates are inevitable big, easily generate heat, high speed performance is poor, and can directly be led to bearing height Many security risks in speed rotation,

2, stress is concentrated: the stress concentration of tapered roller bearing roller end is the congenital critical defect that can not be eradicated, Common main harm is exactly to cause raceway impression and removing,

3, roller is easy skew: the maximum congenital critical defect of tapered roller bearing is exactly roller contact line in rotation Unbalance stress easily makes roller that skew occur, and the mechanical concept of roller skew is: when roller occurs crooked, rolling surface no longer with Raceway is contacted in line, but is tightly stuck between inner and outer ring raceway as chock at an angle, and with inner and outer ring Sting gnaw among sliding friction, cause rolling element one end impression or peeling, the other end is seriously worn, and is directly led to lasso raceway pressure Trace, removing, retainer bursts apart or rib bursts apart, this often occurs in the wheel bearing of heavy-load automobile, and developed country is all at present It is concentrated reducing roller end stress using the method for increasing profiled rollers amount, but still the mechanics sheet of stress concentration cannot be changed Matter can not fundamentally correct the defect of its congenital mechanical structure,

According to technical deficiency existing for traditional high-speed rail bearing, utility model ZL201621332291,5 " one kind before oneself Mechanical structure in novel high-speed rail motive bearing " once using middle four point contact of Place is held instead of taper roller using inclination angle By the design scheme of bi-directional axial load, resistance and roller skew are wiped in the friction for being effectively reduced taper roller, still: 4 points There are still slight sliding frictions when bearing purely radial load for contact ball bearing, cannot bear the higher speed of service, with People are to higher demand of going on a journey, and China's high-speed rail is arrived to 400 kilometers of speed per hour or more of high-speed rail and 600 kilometers of speed per hour at present 1000 kilometers of magnetic suspension train marches, therefore: the present invention has carried out deep technological innovation to high-speed rail bearing,

Summary of the invention

In view of demand and the deficiencies in the prior art that high-speed rail speed is constantly promoted, the utility model kinetic theory before oneself It further furtherd investigate on the basis of technology, propose a kind of novel high speed high-speed rail wheel shaft power bearing, in variable diameter centre circle, The middle Place being arranged in the middle part of excircle uses biserial deep groove ball bearing (coefficient of friction 0,0010--0012), double row angular contact ball axis It holds, the mechanical structures such as deep groove ball bearing, ball rolling element can be made to remain two-point contact pure rolling friction in joint load Advantage, with increase substantially bearing running accuracy and stability, increase substantially middle Place velocity of rotation, significantly subtract The sliding friction and abrasion of Place, the frictional heating that bearing is greatly reduced, the radial carrying for increasing substantially middle Place in few Power and joint load bearing capacity, and the roller for carrying radial force is used into cylindrical roller (friction system on centre circle internal and external circumference Number 0,0008--0010) and annulus roller (coefficient of friction 0,0010--0012) mechanical structure, especially annulus roller adopts With make bearing have good fine tuning heart function and powerful radial bearing capacity, and have needle bearing compact section, because Are as follows: the load that the special annular cambered surface of annulus roller can be such that roller bears is evenly distributed on roller and raceway contact face, institute With: novel high speed heavy duty high-speed rail motive bearing is concentrated there is no roller stress and the generation of the failures such as roller skew, has low rub Wiping, low-temperature-rise, the characteristic of long-life (selecting from comprehensive P776 pages of the catalog of SKF).

The utility model technical solution used for the above purpose is: a kind of " novel high speed high-speed rail wheel shaft power Bearing ", comprising: a variable diameter centre circle, two double half inside races, two double half outer collars, a deep groove ball bearing outer collar and Inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is equipped with two circles in the middle part spacing distance of inner periphery axial distance Double row angular contact spherical rolling track body is equipped with a circle zanjon spherical rolling body at the middle part of variable diameter centre circle excircle axial distance Track, zanjon spherical rolling body track are disposed relative to the double row angular contact spherical shape being arranged in the middle part of variable diameter centre circle inner periphery rolling Between two circle tracks of kinetoplast track, variable diameter centre circle is formed, in the double row angular contact spherical rolling of variable diameter centre circle inner periphery setting Spherical rolling body is respectively set in track body, it is corresponding in the both ends spacing distance of its two circles double row angular contact spherical rolling track body It is respectively provided with a row cylinder roller track, cylindrical roller is respectively set in cylindrical roller track, in the setting of variable diameter centre circle excircle Spherical rolling body is set in zanjon spherical rolling body track, it is corresponding in the both ends spacing distance of its zanjon spherical rolling body track It is respectively provided with row's annulus roller track, annulus roller is respectively set in annulus roller track,

The concentric variable diameter centre circle inner periphery two that is separately positioned on of double half inside races of described two encloses double row angular contact spherical shape The two sides for rolling track body are respectively provided with a circle cylindrical roller track, cylinder rolling in the middle part of two double half inside race excircles The outer end of sub-track is respectively provided with cylindrical roller outer blocking shoulder, and cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, and Angular contact spherical rolling body track is respectively set in the excircle of cylindrical roller inner baffle shoulder, in this two double half inside race cylindrical rollers Double row angular contact ball of the angular contact spherical rolling body track of shoulder block excircle setting respectively with the setting of variable diameter centre circle inner periphery rolls Kinetoplast track is corresponding, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing,

Between double half outer collars of concentric two that variable diameter centre circle excircle is set of the deep groove ball bearing outer collar, And it is corresponding with the circle zanjon spherical rolling body track being arranged in the middle part of variable diameter centre circle excircle, it is combined by spherical rolling body, The middle Place structure of deep groove ball bearing is formed,

Described two double half outer collars are separately positioned on the two sides of deep groove ball bearing outer collar, two double half outer collars it is interior Circumference is respectively provided with a circle annulus roller track.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: a variable diameter centre circle, two double half inside races, two Double half outer collars, a deep groove ball bearing outer collar and inside and outside two layers of rolling element；It is characterized in that: including the variable diameter centre circle The middle part spacing distance of circumference axial distance is equipped with two circle double row angular contact spherical rolling track bodies, in variable diameter centre circle excircle axis It is equipped with a circle zanjon spherical rolling body track to the middle part of distance, zanjon spherical rolling body track is disposed relative in variable diameter It encloses between two circle tracks of the double row angular contact spherical rolling track body being arranged in the middle part of inner periphery, variable diameter centre circle is formed, in variable diameter Spherical rolling body is respectively set in the double row angular contact spherical rolling track body being arranged in the middle part of centre circle inner periphery, in its double row angular contact The both ends spacing distance of spherical rolling track body is corresponding to be respectively provided with a row cylinder roller track, respectively sets in cylindrical roller track Cylindrical roller is set, spherical rolling body is set in the zanjon spherical rolling body track of variable diameter centre circle excircle setting, in its zanjon The both ends spacing distance of spherical rolling track body is corresponding to be respectively provided with a row cylinder roller track, respectively sets in cylindrical roller track Cylindrical roller is set,

The concentric variable diameter centre circle inner periphery two that is separately positioned on of double half inside races of described two encloses double row angular contact spherical shape The two sides of track body are rolled, the excircle of two double half inside races is respectively provided with a circle cylindrical roller track, in its cylindrical roller rail The outer end in road is respectively provided with cylindrical roller outer blocking shoulder, and cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, and in circle Angular contact spherical rolling body track is respectively arranged in the middle part of column roller inner baffle shoulder excircle, in this two double half inside race cylindrical rollers The double row angular contact spherical rolling body that the angular contact spherical rolling body track of shoulder block setting is arranged with variable diameter centre circle inner periphery respectively Track is corresponding, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing,

Between double half outer collars of concentric two that variable diameter centre circle excircle is set of the deep groove ball bearing outer collar, And it is corresponding with the circle zanjon spherical rolling body track being arranged in the middle part of variable diameter centre circle excircle, pass through spherical rolling body group It closes, forms the middle Place structure of deep groove ball bearing,

The two sides of deep groove ball bearing outer collar are arranged in described two double half outer collars, the inner circle of two double half outer collar It is respectively provided with a circle cylindrical roller track week, respectively sets outside cylindrical roller and keep off in the outer end of two double half outer collar cylindrical roller tracks Shoulder.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: a variable diameter centre circle, two double half inside races, two Double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is between the middle part of inner periphery axial distance Gauge is equipped with a circle from two circle double row angular contact spherical rolling track bodies are equipped with, at the middle part of variable diameter centre circle excircle axial distance Zanjon spherical rolling body track, zanjon spherical rolling body track are disposed relative to be arranged in the middle part of variable diameter centre circle inner periphery double Between two circle tracks of column angular contact spherical rolling body track, variable diameter centre circle is formed, in the biserial of variable diameter centre circle inner periphery setting Spherical rolling body is respectively set in angular contact spherical rolling body track, at the both ends interval of its double row angular contact spherical rolling track body It is respectively provided with a row cylinder roller track apart from corresponding, cylindrical roller is respectively set in cylindrical roller track, outside variable diameter centre circle Spherical rolling body is set in the zanjon spherical rolling body track of circumference setting, at the both ends interval of its zanjon spherical rolling body track It is respectively provided with a row cylinder roller track apart from corresponding, cylindrical roller is respectively set in cylindrical roller track,

Double half inside races of described two are concentric to be separately positioned on two circle double row angular contact in the middle part of variable diameter centre circle inner periphery The two sides of spherical rolling track body are respectively provided with a circle cylindrical roller track in the middle part of two double half inside race excircles, in the circle The outer end of column roller track is respectively provided with cylindrical roller outer blocking shoulder, and gear in cylindrical roller is respectively arranged in the inner end of cylindrical roller track Shoulder, and angular contact spherical rolling body track is respectively set in the excircle of cylindrical roller inner baffle shoulder, this two double half inside race cylinders The angular contact spherical rolling body track of roller inner baffle shoulder setting is spherical with the double row angular contact of variable diameter centre circle inner periphery setting respectively It is corresponding to roll track body, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing,

Described two double half outer collars are concentric to be separately positioned on zanjon spherical rolling body rail in the middle part of variable diameter centre circle excircle The two sides in road are respectively provided with a circle cylindrical roller track in the middle part of two double half outer collar inner peripherys, in the outer of cylindrical roller track End respectively sets cylindrical roller outer blocking shoulder, and the inner end of cylindrical roller track respectively sets cylindrical roller inner baffle shoulder, and in its cylindrical roller Three point contact spherical rolling track body is respectively arranged in the end of shoulder block inner periphery, this two double half outer collar cylindrical roller inner baffle shoulders are set The three point contact spherical rolling track body set is corresponding with the zanjon spherical rolling body track of centre circle excircle setting respectively, passes through Spherical rolling body combination, forms the middle Place structure of three-point contact ball bearing.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: in a variable diameter centre circle, a biserial deep groove ball bearing Lasso, two double half inside races, two double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle exists The middle part spacing distance of inner periphery axial distance is equipped with two circle biserial zanjon spherical rolling body tracks, in variable diameter centre circle excircle axis It is equipped with a circle zanjon spherical rolling body track to the middle part of distance, zanjon spherical rolling body track is disposed relative in variable diameter It encloses between two circle tracks of the biserial zanjon spherical rolling body track being arranged in the middle part of inner periphery, variable diameter centre circle is formed, in variable diameter It encloses in the zanjon spherical rolling body track of inside and outside circumference setting and spherical rolling body is respectively set, set in the middle part of variable diameter centre circle inner periphery The both ends spacing distance for the biserial zanjon spherical rolling body track set is corresponding to be respectively provided with a row cylinder roller track, in the cylinder Cylindrical roller is respectively set in roller track, the both ends spacing distance of a circle spherical rolling track body in the middle part of variable diameter centre circle excircle It is corresponding to be respectively provided with a row cylinder roller track, cylindrical roller is respectively set in cylindrical roller track,

The concentric setting of the biserial deep groove ball bearing inside race between two double half inside races, and with variable diameter centre circle The biserial deep-groove ball rolling track body being arranged in the middle part of inner periphery is corresponding, is combined by spherical rolling body, forms biserial deep-groove ball The middle Place structure of bearing,

Double half inside races of described two are separately positioned on the two sides of biserial deep groove ball bearing inside race, two double half inner sleeves Circle excircle is respectively provided with a circle cylindrical roller track, and the outer end of two double half inside race cylindrical roller tracks is respectively provided with cylindrical roller Outer blocking shoulder,

Double half outer collars of described two are concentric to be separately positioned on zanjon spherical rolling body in the middle part of variable diameter centre circle excircle The two sides of track are respectively provided with a circle cylindrical roller track in the middle part of two double half outer collar inner peripherys, in its cylindrical roller track Outer end respectively set cylindrical roller outer blocking shoulder, respectively set cylindrical roller inner baffle shoulder in the inner end of cylindrical roller track, and roll in its cylinder Three point contact spherical rolling track body is respectively arranged in the end of sub- inner baffle shoulder inner periphery, gear in this two double half outer collar cylindrical rollers The three point contact spherical rolling track body of shoulder setting encloses deep-groove ball rolling element with one of setting in the middle part of variable diameter centre circle excircle respectively Track is corresponding, is combined by spherical rolling body, forms the middle Place structure of three-point contact ball bearing.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: a variable diameter centre circle, a deep groove ball bearing inner sleeve Circle, two double half inside races, two double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle exists The middle part spacing distance of excircle axial distance is equipped with two circle double row angular contact spherical rolling track bodies, in variable diameter centre circle inner periphery The middle part of axial distance is equipped with a circle zanjon spherical rolling body track, and zanjon spherical rolling body track is disposed relative to variable diameter Between two circle tracks of the double row angular contact spherical rolling track body being arranged in the middle part of centre circle excircle, variable diameter centre circle is formed, is being become Spherical rolling body is set in the zanjon spherical rolling body track being arranged in the middle part of diameter centre circle inner periphery, in its zanjon spherical rolling body rail The both ends spacing distance in road is corresponding to be respectively provided with row's annulus roller track, and annulus roller is respectively arranged in ring ring, is becoming Spherical rolling body is respectively set in two circle double row angular contact spherical rolling track bodies being arranged in the middle part of diameter centre circle excircle, in its biserial The both ends spacing distance of angular contact spherical rolling body track is corresponding to be respectively provided with row's cylindrical rolling element track, cylindrical roller Cylindrical roller is respectively set in track,

The concentric setting of the deep groove ball bearing inside race between two double half inside races, and with variable diameter centre circle inner circle The circle zanjon spherical rolling body track that all middle parts are arranged is corresponding, is combined by spherical rolling body, forms deep-groove ball ball bearing Middle Place structure

Double half inside races of described two are separately positioned on the two sides of deep groove ball bearing inside race, two double half inside race Excircle be respectively provided with a circle annulus roller track,

Double half outer collars of described two are concentric to be separately positioned on biserial corner connection contact ball in the middle part of variable diameter centre circle excircle Shape rolls the two sides of track body, a circle cylindrical roller track is respectively provided in the middle part of two double half outer collar inner peripherys, in the cylinder The outer end of roller track is respectively provided with cylindrical roller outer blocking shoulder, and cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, And it is respectively provided with angular contact spherical rolling body track in the inner periphery of cylindrical roller home record shoulder, this two double half outer collar cylindrical rollers The angle touching spherical rolling track body of home record shoulder setting is rolled with the double row angular contact spherical shape being arranged in the middle part of variable diameter centre circle excircle respectively Kinetoplast track is corresponding, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: a variable diameter centre circle, a deep groove ball bearing inner sleeve Circle, two double half inside races, two double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle exists The middle part spacing distance of excircle axial distance is equipped with two circle double row angular contact spherical rolling track bodies, in variable diameter centre circle inner periphery The middle part of axial distance is equipped with a circle zanjon spherical rolling body track, and zanjon spherical rolling body track is disposed relative to variable diameter Between two circle tracks of the double row angular contact spherical rolling track body being arranged in the middle part of centre circle excircle, variable diameter centre circle is formed, is being become Spherical rolling body is respectively set in the double row angular contact spherical rolling track body being arranged in the middle part of diameter centre circle excircle, in its biserial corner connection The both ends spacing distance of touching spherical rolling track body is corresponding to be respectively provided with a row cylinder roller track, each in cylindrical roller track Cylindrical roller is set, spherical rolling body is set in the zanjon spherical rolling body track being arranged in the middle part of variable diameter centre circle inner periphery, The both ends spacing distance of its zanjon spherical rolling body track is corresponding to be respectively provided with a row cylinder roller track, in cylindrical roller track Interior each setting cylindrical roller,

The concentric setting of the deep groove ball bearing inside race between two double half inside races, and with variable diameter centre circle inner circle The circle zanjon spherical rolling body track that all middle parts are arranged is corresponding, is combined by spherical rolling body, forms deep-groove ball ball bearing Middle Place structure,

Double half inside races of described two are separately positioned on the two sides of deep groove ball bearing inside race, in two double half inside races Excircle be respectively provided with cylindrical roller track, be respectively provided with cylindrical roller outer blocking shoulder in the outer end of its cylindrical roller track,

Double half outer collars of described two are concentric to be separately positioned on double row angular contact spherical shape in the middle part of variable diameter centre circle excircle The two sides of track body are rolled, a circle cylindrical roller track are respectively provided in the middle part of two double half outer collar inner peripherys, in inner periphery Middle part is respectively provided with cylindrical roller track, cylindrical roller outer blocking shoulder is respectively provided in the outer end of its cylindrical roller track, in cylindrical roller Cylindrical roller inner baffle shoulder is respectively arranged in the inner end of track, and is respectively provided with angular contact spherical rolling in the inner periphery of cylindrical roller home record shoulder Track body, the spherical rolling track body of the angle touching of this two double half outer collar cylindrical roller home record shoulders settings respectively with variable diameter centre circle The double row angular contact spherical rolling track body being arranged in the middle part of excircle is corresponding, is combined by spherical rolling body, forms biserial angle The middle Place structure of contact ball bearing.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: a variable diameter centre circle, two double half inside races, two Double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is between the middle part of excircle axial distance Gauge is equipped with a circle from two circle double row angular contact spherical rolling track bodies are equipped with, at the middle part of variable diameter centre circle inner periphery axial distance Zanjon spherical rolling body track, zanjon spherical rolling body track are disposed relative to be arranged in the middle part of variable diameter centre circle excircle double Between two circle tracks of column angular contact spherical rolling body track, variable diameter centre circle is formed, encloses biserial angle in variable diameter centre circle excircle two Spherical rolling body is respectively set in contact spherical rolling track body, in the both ends interval distance of its double row angular contact spherical rolling track body It is respectively provided with a row cylinder roller track from corresponding, cylindrical roller is respectively set in cylindrical roller track, in variable diameter centre circle inner circle Spherical rolling body is set in the zanjon spherical rolling body track that all middle parts are arranged, between the both ends of its zanjon spherical rolling body track Gauge is respectively provided with a row cylinder roller track from corresponding, and cylindrical roller is respectively arranged in cylindrical roller track,

Double half inside races of described two are concentric to be separately positioned on zanjon spherical rolling body in the middle part of variable diameter centre circle inner periphery The two sides of track are respectively provided with a circle cylindrical roller track in the middle part of two double half inside race excircles, in its cylindrical roller track Outer end be equipped with cylindrical roller outer blocking shoulder, be respectively provided with cylindrical roller inner baffle shoulder in the inner end of cylindrical roller track, and in the cylinder Three point contact spherical rolling track body is respectively arranged in the excircle of roller inner baffle shoulder end, in this two double half inside race cylindrical rollers The zanjon spherical rolling body track that the three point contact spherical rolling track body of shoulder block end setting is arranged with centre circle inner periphery respectively It is corresponding, it is combined by spherical rolling body, forms the middle Place structure of three-point contact ball bearing,

Double half outer collars of described two are concentric to be separately positioned on biserial corner connection contact ball in the middle part of variable diameter centre circle excircle Shape rolls the two sides of track body, a circle cylindrical roller track is respectively provided in the middle part of two double half outer collar inner peripherys, in its cylinder The outer end of roller track is respectively provided with cylindrical roller outer blocking shoulder, and cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, And angular contact spherical rolling body track is respectively set at the middle part of cylindrical roller home record shoulder inner periphery, this two double half outer collar cylinders The double row angular contact ball that the angle touching spherical rolling track body of roller home record shoulder setting is arranged with variable diameter centre circle excircle middle part respectively Shape rolling track body is corresponding, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: a variable diameter centre circle, two double half inside races, two Double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is at the middle part interval of excircle axial distance Distance is equipped with two circle double row angular contact spherical rolling track bodies, and it is deep to be equipped with a circle at the middle part of variable diameter centre circle inner periphery axial distance Ditch spherical rolling track body, zanjon spherical rolling body track are disposed relative to the biserial being arranged in the middle part of variable diameter centre circle excircle Between two circle tracks of angular contact spherical rolling body track, variable diameter centre circle is formed, what is be arranged in the middle part of variable diameter centre circle excircle is double Spherical rolling body is respectively set in column angular contact spherical rolling body track, between the both ends of its double row angular contact spherical rolling track body Gauge is respectively provided with a row cylinder roller track from corresponding, cylindrical roller is respectively arranged in the cylindrical roller track, in variable diameter It encloses and spherical rolling body is set in the zanjon spherical rolling body track being arranged in the middle part of inner periphery, in its variable diameter centre circle inner periphery deep-groove ball The both ends spacing distance of shape rolling track body is corresponding to be respectively provided with row's taper roller track, respectively sets in the taper roller track Taper roller is set,

Double half inside races of described two are concentric to be separately positioned on zanjon spherical rolling body in the middle part of variable diameter centre circle inner periphery The two sides of track are respectively provided with a circle taper roller track in the middle part of two double half inside race excircles, in its taper roller track Outer end be respectively provided with taper roller outer blocking shoulder, be respectively provided with taper roller inner baffle shoulder in the inner end of taper roller track, and in the circle Three point contact spherical rolling track body is respectively arranged in the excircle of cone roller inner baffle shoulder end, this two double half inside race taper rollers The zanjon spherical rolling body rail that the three point contact spherical rolling track body of inner baffle shoulder setting is arranged with variable diameter centre circle inner periphery respectively Road is corresponding, is combined by spherical rolling body, forms the middle Place structure of three-point contact ball bearing,

Double half outer collars of described two are concentric to be separately positioned on biserial corner connection contact ball in the middle part of variable diameter centre circle excircle Shape rolls the two sides of track body, a circle cylindrical roller track is respectively provided in the middle part of two double half outer collar inner peripherys, in the cylinder The outer end of roller track is respectively provided with cylindrical roller outer blocking shoulder, is respectively provided with cylindrical roller inner baffle shoulder in the inner end of cylindrical roller track, Angular contact spherical rolling body track is respectively set at the middle part of its cylindrical roller inner baffle shoulder inner periphery, this two double half outer collar cylinders The double row angular contact spherical rolling that the angular contact spherical rolling body track of roller inner baffle shoulder setting is arranged with centre circle excircle respectively Track body is corresponding, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: a variable diameter centre circle, two double half inside races, two Double half outer collars and inside and outside two layers of rolling element；It is characterized in that: including the variable diameter centre circle, between the middle part of excircle axial distance Gauge forms variable diameter centre circle, is respectively arranged in zanjon spherical rolling body track from a circle zanjon spherical rolling body track is respectively provided with Spherical rolling body is respectively provided with one the both ends spacing distance of the inside and outside circumference zanjon spherical rolling body track of variable diameter centre circle is corresponding Cylindrical roller is respectively arranged in cylindrical roller track in row cylinder roller track,

Double half inside races of described two are concentric to be separately positioned on zanjon spherical rolling body in the middle part of variable diameter centre circle inner periphery The two sides of track are respectively provided with a circle cylindrical roller track in the middle part of two double half inside race excircles, in its cylindrical roller track Outer end be respectively provided with cylindrical roller outer blocking shoulder, cylindrical roller inner baffle shoulder is respectively set in the inner end of cylindrical roller track, and in its circle The excircle of column roller home record point of shoulder head is respectively provided with three point contact spherical rolling track body, in two double half inside race cylindrical rollers The three point contact spherical rolling track body of shelves point of shoulder head setting is rolled with the zanjon spherical shape being arranged in the middle part of variable diameter centre circle inner periphery respectively Kinetoplast track is corresponding, is combined by spherical rolling body, forms the middle Place structure of three-point contact ball bearing

Double half outer collars of described two are concentric to be separately positioned on zanjon spherical rolling body in the middle part of variable diameter centre circle excircle The two sides of track are respectively provided with a circle cylindrical roller track in the middle part of two double half outer collar inner peripherys, cylindrical roller track Outer end is respectively provided with cylindrical roller outer blocking shoulder, cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, and in the cylinder The spherical rolling track body of three point contact, two double half outer collar cylindrical roller tracks are respectively arranged in roller inner baffle shoulder inner periphery end The three point contact spherical rolling track body of home record point of shoulder head setting is spherical with the zanjon of setting in the middle part of variable diameter centre circle excircle respectively It is corresponding to roll track body, is combined by spherical rolling body, forms the middle Place structure of three-point contact ball bearing.

A kind of " novel high speed high-speed rail wheel shaft power bearing ", comprising: outside a variable diameter centre circle, a biserial deep groove ball bearing Lasso, two double half inside races, two double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is outside The middle part spacing distance of circumference axial distance is equipped with two circle biserial zanjon spherical rolling body tracks, axial in variable diameter centre circle inner periphery The middle part of distance is equipped with a circle zanjon spherical rolling body track, and zanjon spherical rolling body track is disposed relative to variable diameter centre circle Between two circle tracks of the biserial zanjon spherical rolling body track being arranged in the middle part of excircle, variable diameter centre circle is formed, in variable diameter centre circle Spherical rolling body is respectively set in the zanjon spherical rolling body track of inside and outside circumference setting, is set in the middle part of the inside and outside circumference of variable diameter centre circle The both ends spacing distance for the biserial zanjon spherical rolling body track set is corresponding to be respectively provided with a row cylinder roller track, circle respectively Cylindrical roller is respectively set in column roller track,

The concentric setting of the biserial deep groove ball bearing outer collar between two double half outer collars, and with variable diameter centre circle The biserial deep-groove ball rolling track body being arranged in the middle part of excircle is corresponding, is combined by spherical rolling body, forms biserial deep-groove ball The middle Place structure of bearing,

Described two double half outer collars are arranged in the two sides of biserial deep groove ball bearing outer collar, two double half outer collars Inner periphery is respectively provided with a circle cylindrical roller track, and the outer end of cylindrical roller track is respectively provided with cylindrical roller outer blocking shoulder,

Double half inside races of described two are concentric to be separately positioned on zanjon spherical rolling body in the middle part of variable diameter centre circle inner periphery The two sides of track are respectively provided with a circle cylindrical roller track in the middle part of two double half inside race excircles, in the cylindrical roller track Outer end respectively set cylindrical roller outer blocking shoulder, respectively set cylindrical roller inner baffle shoulder in the inner end of the cylindrical roller track, and roll in cylinder Three point contact spherical rolling track body is respectively arranged in the excircle of sub- inner baffle shoulder end, gear in this two double half inside race cylindrical rollers The three point contact spherical rolling track body of shoulder setting encloses deep-groove ball rolling element with one of setting in the middle part of variable diameter centre circle inner periphery respectively Track is corresponding, is combined by spherical rolling body, forms the middle Place structure of deep groove ball bearing.

The beneficial effect of the utility model one kind " novel high speed high-speed rail motive bearing " is:

Known: the binodal tapered roller bearing of world pop is because there are numerous significant deficiencies of force unbalance, warps at present Often there is roller skew and the premature failure being led to that bites, therefore: the balance of power is one important in the design of high-speed rail bearing Key technology, the utility model according to the equilibrium principle of power high-speed rail bearing the binodal roller medium design power of middle Place Learn structure, by angular contact ball bearing, deep groove ball bearing two-point contact pure rolling friction and be able to bear joint load mechanics it is excellent Gesture is applied among two row rollers of double row tapered roller bearing, provides the axial direction of stability and high efficiency for double row tapered roller bearing Power support and radial force support, stress is serious with the birth defect for overcoming taper roller end stress to concentrate and in axial load Uneven significant deficiency, and create Biserial cylindrical roller bearing, biserial annulus roller bearing binodal roller between be arranged Place in biserial deep groove ball bearing, in double-row angular contact bal bearing Place mechanical structure.Wherein the effect of Place creativeness is:

1, because are as follows: deep groove ball bearing, biserial deep groove ball bearing, double-row angular contact bal bearing all have to be begun in joint load The advantage for keeping two-point contact pure rolling friction eventually, is not present sliding friction, and coefficient of friction (0,001-0,0012) is extremely low, and And there is best high stability energy and rigidity, there is fabulous adaptation between raceway and steel ball, lubricating condition is reliable, non- Chang Naiyong, without being regularly maintained, with the superperformance (- P290 pages of SKF bearing) for bearing joint load, so: this is practical new Type " a kind of novel high speed high-speed rail motive bearing " using the principle of deep groove ball bearing two-point contact pure rolling friction create in set This important mechanical structure point of ball, and create with biserial deep groove ball bearing and double-row angular contact bal bearing as middle Place mechanics Structure,

2, the effect of Place bears joint load in utilizing can effectively cancel out the stress collection of binodal circular cone roller small end In, significantly reduce binodal taper roller in joint load due to the roller skew that unbalance stress is led to, and can effectively subtract The friction wear of bearing is greatly reduced in the original design at the inclination angle of conicle roller, improves the rotational efficienty of bearing, this is right Have significantly in improving mechanical efficiency, the failure rate for reducing bearing, effectively extending the service life of bearing and maintenance cycle Meaning,

3, using the combination of middle Place and cylindrical roller because cylinder roller bearing have minimum coefficient of friction (0, 0008-0,001), under the action of middle Place, the pressure sliding friction between cylindrical roller end and lasso rib is almost Zero, facilitate the good lubrication of roller end Yu lasso rib, roller frictional fever is greatly reduced, makes cylindrical roller in height In speed rotation stress more evenly, this high speed for ensuring the aeroplane engine mainshaft bearing of high-speed rail bearing, cylindrical rolling element Stability and good joint load are rare new technologies,

4, using the combination of middle Place and annulus roller because the coefficient of friction of annulus roller only have (0,0010-0, 0012), especially annulus roller has good fine tuning heart function and powerful radial bearing capacity, and with needle bearing Compact section, and: the load that the special annular cambered surface of annulus roller can be such that roller bears is evenly distributed in roller and raceway On contact surface, so: there is no roller stress to concentrate the generation with failures such as roller skews for the combination of middle Place and annulus roller, With low friction, low-temperature-rise, the characteristic of long-life (select from SKF comprehensive P776 pages of catalog),

5, SKF bearing data confirms: the revolving speed of internal diameter 130, the bearing of outer diameter 230, deep groove ball bearing can reach 5600-- 3600 revs/min (P314 pages of SKF bearings synthesis catalog), annulus roller bearing revolving speed can reach 2800--3800 revs/min, circle Column roller bearing revolving speed can reach 3200--3400 revs/min, and the revolving speed of tapered roller bearing can only achieve 1500-2800 Rev/min, therefore the utility model " a kind of novel high speed high-speed rail motive bearing " can be applicable in higher high-speed rail speed.

Detailed description of the invention

The middle Place being arranged in the middle part of Fig. 1, inner periphery is double-row angular contact bal bearing structure, and cylindrical roller rail is arranged in two sides Road, the middle Place being arranged in the middle part of excircle are deep groove ball bearing structure, two sides be respectively arranged annulus roller track variable diameter centre circle and Bearing cross-sectional view.

The middle Place being arranged in the middle part of Fig. 2, inner periphery is double-row angular contact bal bearing structure, and cylindrical roller rail is arranged in two sides Road, the middle Place being arranged in the middle part of excircle are deep groove ball bearing structure, two sides be respectively arranged cylindrical roller track variable diameter centre circle and Bearing cross-sectional view.

The middle Place being arranged in the middle part of Fig. 3, inner periphery is double-row angular contact bal bearing structure, and cylindrical roller rail is arranged in two sides Road, the middle Place that excircle middle part is arranged is three-point contact ball bearing structure, and two sides are respectively arranged in the variable diameter of cylindrical roller track Circle and bearing cross-sectional view.

The middle Place being arranged in the middle part of Fig. 4, inner periphery is biserial deep groove ball bearing structure, and cylindrical roller track is arranged in two sides, The middle Place being arranged in the middle part of excircle is three-point contact ball bearing structure, two sides be respectively arranged cylindrical roller track variable diameter centre circle and Bearing cross-sectional view.

The middle Place being arranged in the middle part of Fig. 5, excircle is double-row angular contact bal bearing structure, and cylindrical roller rail is arranged in two sides Road, the middle Place being arranged in the middle part of inner periphery are deep groove ball bearing structure, two sides be respectively arranged annulus roller track variable diameter centre circle and Bearing cross-sectional view.

The middle Place being arranged in the middle part of Fig. 6, excircle is double-row angular contact bal bearing structure, and cylindrical roller rail is arranged in two sides Road, the middle Place being arranged in the middle part of inner periphery are deep groove ball bearing structure, two sides be respectively arranged cylindrical roller track variable diameter centre circle and Bearing cross-sectional view.

The middle Place being arranged in the middle part of Fig. 7, excircle is double-row angular contact bal bearing structure, and cylindrical roller rail is arranged in two sides Road, the middle Place that inner periphery middle part is arranged is three-point contact ball bearing structure, and two sides are respectively arranged in the variable diameter of cylindrical roller track Circle and bearing cross-sectional view.

The middle Place being arranged in the middle part of Fig. 8, excircle is double-row angular contact bal bearing structure, and cylindrical roller rail is arranged in two sides Road, the middle Place that inner periphery middle part is arranged is three-point contact ball bearing structure, and two sides are respectively arranged in the variable diameter of taper roller track Circle and bearing cross-sectional view.

The respectively arranged middle Place of spacing distance is three-point contact ball bearing structure in the middle part of Fig. 9, inside and outside circumference, inside and outside Distinguish the variable diameter centre circle and bearing cross-sectional view of each setting cylindrical roller track in the both ends of circumference.

The middle Place being arranged in the middle part of Figure 10, excircle is biserial deep groove ball bearing structure, and cylindrical roller track is arranged in two sides, The middle Place being arranged in the middle part of inner periphery is three-point contact ball bearing structure, two sides be respectively arranged cylindrical roller track variable diameter centre circle and Bearing cross-sectional view.

In figure: 1, variable diameter centre circle, 2, double half inside races, 3, double half outer collars, 4, deep groove ball bearing outer collar, 5, deep-groove ball Bearing inner ring, 6, biserial deep groove ball bearing inside race, 7, biserial deep groove ball bearing outer collar, 8, biserial deep-groove ball rolling element rail Road, 9, double row angular contact ball rolling element ball track, 10, deep-groove ball rolling track body, 11, angular contact ball rolling track body, 12, three Point contact ball rolls track body, 13, annulus roller track, 14, cylindrical roller track, 15, taper roller track 16, annulus rolling Son, 17, cylindrical roller, 18 taper rollers, 19, cylindrical roller outer blocking shoulder 20, cylindrical roller inner baffle shoulder, 21 taper rollers are kept off outside Shoulder, 22, taper roller inner baffle shoulder, 23 bladders tracks, 24, spherical rolling body.

Specific embodiment:

The utility model is described in further detail combined with specific embodiments below, but the utility model is not limited to Specific embodiment,

Embodiment one:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 1, comprising: variable diameter centre circle 1, two double half inner sleeves 2, two double half outer collar, 3, deep groove ball bearing outer collars 4 of circle and inside and outside two layers of rolling element；Variable diameter centre circle 1 is in inner periphery The middle part spacing distance of axial distance is equipped with two circle double row angular contact spherical rolling track bodies 9, axial in 1 excircle of variable diameter centre circle The middle part of distance is equipped with a circle zanjon spherical rolling body track 10, and zanjon spherical rolling body raceway 10 is arranged in opposite variable diameter It encloses between two circle tracks of the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 inner periphery, forms variable diameter centre circle, becoming Spherical rolling body 24 is respectively set in the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 inner periphery of diameter centre circle, in its two circle The both ends spacing distance of double row angular contact spherical rolling track body 9 is corresponding to be respectively provided with a row cylinder roller track 14, in cylinder Cylindrical roller 17 is respectively set in roller track 14, in the zanjon spherical rolling body track 10 of 1 excircle of variable diameter centre circle setting Spherical rolling body 24 is set, is rolled in the corresponding row's annulus that is respectively provided with of the both ends spacing distance of its zanjon spherical rolling body track 10 Annulus roller 16 is respectively arranged in sub-track 13 in annulus roller track 13,

Double half inside races 2 of described two are concentric to be separately positioned on two circles pair being arranged in the middle part of 1 inner periphery of variable diameter centre circle The two sides of column angular contact spherical rolling body track 9 are respectively provided with a circle cylindrical roller in the middle part of two 2 excircles of double half inside races Track 14 is respectively provided with cylindrical roller outer blocking shoulder 19 in the outer end of its cylindrical roller track 14, in its cylindrical roller track 14 Each setting cylindrical roller inner baffle shoulder 20 is held, and angular contact spherical rolling body rail is respectively set in the excircle of cylindrical roller inner baffle shoulder 20 Road 11, the angular contact spherical rolling body track 11 of this two double half inside race, 2 cylindrical roller outer blocking shoulders 19 settings respectively with variable diameter The double row angular contact spherical rolling track body 9 of 1 inner periphery of centre circle setting is corresponding, is combined by two rows of spherical rolling bodies 24, shape At the middle Place structure of double-row angular contact bal bearing,

Double half outer collars 3 of the deep groove ball bearing outer collar 4 concentric two that 1 excircle of variable diameter centre circle is set it Between, and it is corresponding with the circle zanjon spherical rolling body track 10 being arranged in the middle part of variable diameter centre circle excircle, pass through spherical rolling Body 24 combines, and forms the middle Place structure of deep groove ball bearing,

Described two double half outer collars 3 are separately positioned on the both ends of deep groove ball bearing outer collar 4, two double half outer collar 3 inner periphery is respectively provided with a circle annulus roller track 13.

Embodiment 2:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 2, comprising: a variable diameter centre circle, two double half inner sleeves 2, two double half outer collar, 3, deep groove ball bearing outer collars 4 of circle and inside and outside two layers of rolling element；Variable diameter centre circle 1 is in inner periphery The middle part spacing distance of axial distance is equipped with two circle double row angular contact spherical rolling track bodies 9, axial in 1 excircle of variable diameter centre circle The middle part of distance is equipped with a circle zanjon spherical rolling body track 10, and zanjon spherical rolling body raceway 10 is arranged in opposite variable diameter It encloses between two circle tracks of the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 inner periphery, forms variable diameter centre circle, becoming Spherical rolling body 24 is respectively set in the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 inner periphery of diameter centre circle, in its two circle The both ends spacing distance of double row angular contact spherical rolling track body 9 is corresponding to be respectively provided with a row cylinder roller track 14, in cylinder Cylindrical roller 19 is respectively set in roller track 14, the zanjon spherical rolling body track 10 being arranged in the middle part of 1 excircle of variable diameter centre circle Interior setting spherical rolling body 24 is respectively provided with row's cylinder the both ends spacing distance of its zanjon spherical rolling body track 10 is corresponding Cylindrical roller 17 is respectively arranged in roller track 14 in cylindrical roller track 14,

The concentric two circle biserial angles for being separately positioned on the setting of 1 inner periphery of variable diameter centre circle of double half inside races 2 of described two The two sides of spherical rolling track body 9 are contacted, are respectively provided with a circle cylindrical roller track in the middle part of two 2 excircle of double half inside races 14, it is respectively provided with cylindrical roller outer blocking shoulder 19 in the outer end of cylindrical roller track 14, is respectively arranged in the inner end of cylindrical roller track 14 Cylindrical roller inner baffle shoulder 20, and angular contact spherical rolling body track 11 is respectively set in the excircle of cylindrical roller inner baffle shoulder 20, it should The angular contact spherical rolling body track 11 of two double half inside race, 2 cylindrical roller inner baffle shoulder 20 settings is respectively and in variable diameter centre circle 1 The double row angular contact spherical rolling track body 9 of circumference setting is corresponding, is combined by spherical rolling body 24, forms double row angular contact The middle Place structure of ball bearing,

The deep groove ball bearing outer collar 4 is concentric to be arranged between two double half outer collars 3, and with setting in variable diameter A circle zanjon spherical rolling body track 10 in the middle part of 1 excircle of centre circle is corresponding, is combined by spherical rolling body 24, forms zanjon The middle Place structure of ball bearing,

Described two double half outer collars 3 are separately positioned on the both ends of deep groove ball bearing outer collar 4, two double half outer collar 3 inner periphery is respectively provided with a circle cylindrical roller track 14, respectively sets cylindrical roller outer blocking shoulder in the outer end of the cylindrical roller track 14 19。

Embodiment 3:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 3, comprising: variable diameter centre circle 1, two double half inner sleeves 2, two double half outer collars 3 of circle and inside and outside two layers of rolling element；Middle part spacing distance of the variable diameter centre circle 1 in inner periphery axial distance Equipped with two circle double row angular contact spherical rolling track bodies 9, a circle zanjon is equipped at the middle part of 1 excircle axial distance of variable diameter centre circle Pair being arranged in the middle part of opposite 1 inner periphery of variable diameter centre circle is arranged in spherical rolling track body 10, zanjon spherical rolling body raceway 10 Between two circle tracks of column angular contact spherical rolling body track 9, variable diameter centre circle is formed, is arranged in the middle part of 1 inner periphery of variable diameter centre circle Double row angular contact spherical rolling track body 9 in spherical rolling body 24 is respectively set, its two circle double row angular contact spherical rolling body The both ends spacing distance of track 9 is corresponding to be respectively provided with a row cylinder roller track 14, and respectively setting is justified in cylindrical roller track 14 Spherical rolling body 24 is arranged in the zanjon spherical rolling body track 10 being arranged in the middle part of 1 excircle of variable diameter centre circle for column roller 17, and A row cylinder roller track 14 is respectively provided with the both ends spacing distance of zanjon spherical rolling body track 10 is corresponding, in cylindrical roller Cylindrical roller 17 is respectively set in track 14,

Double half inside races 2 of described two are concentric to be separately positioned on two circles pair being arranged in the middle part of 1 inner periphery of variable diameter centre circle The two sides of column angular contact spherical rolling body track 9 are respectively provided with a circle cylindrical roller rail in the middle part of two double half inside race, 2 excircles Road 14 is respectively provided with cylindrical roller outer blocking shoulder 19 in the outer end of its cylindrical roller track 14, each in the inner end of cylindrical roller track 14 Cylindrical roller inner baffle shoulder 20 is set, and angular contact spherical rolling body track is respectively set in the excircle of cylindrical roller inner baffle shoulder 20 11, the angular contact spherical rolling body track 11 of this two double half inside race, 2 cylindrical roller inner baffle shoulder 20 settings is respectively and in variable diameter The double row angular contact spherical rolling track body 9 for enclosing the setting being arranged in the middle part of 1 inner periphery is corresponding, passes through 24 groups of spherical rolling body It closes, forms the middle Place structure of double-row angular contact bal bearing,

Described two double half outer collars 3 are concentric to be separately positioned on the zanjon spherical shape being arranged in the middle part of 1 excircle of variable diameter centre circle The two sides of track body 10 are rolled, a circle cylindrical roller track 14 are respectively provided in the middle part of two 3 inner peripherys of double half outer collars, in the circle The outer end of column roller track 14 respectively sets cylindrical roller outer blocking shoulder 19, respectively sets in cylindrical roller and keeps off in the inner end of cylindrical roller track 14 Shoulder 20, and three point contact spherical rolling track body 12 is respectively set in the end of 20 inner periphery of cylindrical roller inner baffle shoulder, two The three point contact spherical rolling track body 12 of double half outer collar, 3 cylindrical roller inner baffle shoulders 20 setting respectively with 1 outer circle of variable diameter centre circle The zanjon spherical rolling body track 10 that all middle parts are arranged is corresponding, is combined by spherical rolling body 24, forms three point contact ball axis The middle Place structure held.

Embodiment 4:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 4, comprising: 1, biserial zanjon of a variable diameter centre circle Ball bearing inside race 6, two double half inside race, 2, two double half outer collars 3 and inside and outside two layers of rolling element；Including variable diameter centre circle 1 The middle part spacing distance of circumference axial distance is equipped with two circle zanjon spherical rolling body tracks 8, variable diameter centre circle 1 excircle it is axial away from From middle part be equipped with one circle zanjon spherical rolling body track 10, zanjon spherical rolling body raceway 10 be arranged in opposite variable diameter centre circle Between two circle tracks of the biserial zanjon spherical rolling body track 8 being arranged in the middle part of 1 inner periphery, variable diameter centre circle is formed, in variable diameter It encloses in the biserial zanjon spherical rolling body track 8 being arranged in the middle part of 1 inner periphery and spherical rolling body 24 is respectively set, in the biserial deep-groove ball The both ends spacing distance of shape rolling track body 8 is corresponding to be respectively provided with a row cylinder roller track 14, in cylindrical roller track 14 Each setting cylindrical rolling element 17, one be arranged in the middle part of 1 excircle of variable diameter centre circle, which encloses in spherical rolling track body 10, is arranged ball Shape rolling element 24 is respectively provided with a row cylinder roller track 14 the both ends spacing distance of the spherical rolling track body 10 is corresponding, Cylindrical roller 17 is respectively set in the cylindrical roller track 14,

The concentric setting of the biserial deep groove ball bearing inside race 6 between two double half inside races 2, and in variable diameter It is corresponding to enclose the biserial deep-groove ball rolling track body 8 being arranged in the middle part of 1 inner periphery, is combined by spherical rolling body 24, forms biserial The middle Place structure of deep groove ball bearing,

Double half inside races 2 of described two are separately positioned on the two sides of biserial deep groove ball bearing inside race 6, and two double partly interior The excircle of lasso 2 is respectively provided with a circle cylindrical roller track 14, is respectively provided with cylindrical roller in the outer end of the cylindrical roller track 14 Outer blocking shoulder 19,

Double half outer collars 3 of described two are concentric to be separately positioned on the deep-groove ball being arranged in the middle part of 1 excircle of variable diameter centre circle Shape rolls the two sides of track body 10, a circle cylindrical roller track 14 is respectively provided in the middle part of two 3 inner peripherys of double half outer collars, at this Cylindrical roller outer blocking shoulder 19 is respectively arranged in the outer end of cylindrical roller track 14, respectively sets cylinder rolling in the inner end of the cylindrical roller track 14 Three point contact spherical rolling track body 12 is respectively arranged in the end inner periphery of its cylindrical roller inner baffle shoulder 20 in sub- inner baffle shoulder 20, should The three point contact spherical rolling track body 12 of two double half outer collar, 3 cylindrical roller inner baffle shoulders 20 settings respectively with variable diameter centre circle 1 The circle deep-groove ball rolling track body 10 being arranged in the middle part of excircle is corresponding, is combined by spherical rolling body 24, forms biserial angle The middle Place structure of contact ball bearing.

Embodiment 5:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 5, comprising: 1, deep-groove ball axis of a variable diameter centre circle Hold inside race 5, two double half inside race, 2, two double half outer collars 3 and inside and outside two layers of rolling element；Variable diameter centre circle 1 is in excircle The middle part spacing distance of axial distance is equipped with two circle double row angular contact spherical rolling track bodies 9, axial in 1 inner periphery of variable diameter centre circle The middle part of distance is equipped with a circle zanjon spherical rolling body track 10, and zanjon spherical rolling body raceway 10 is arranged in opposite variable diameter It encloses between two circle tracks of the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 excircle, variable diameter centre circle is formed, at this Spherical rolling body 24 is set in zanjon spherical rolling body track 10, in the both ends spacing distance of its zanjon spherical rolling body track 10 It is corresponding to be respectively provided with row's annulus roller track 13, annulus roller 16 is respectively set in annulus roller track 13, in variable diameter centre circle 1 Spherical rolling body 24 is respectively set in the double row angular contact spherical rolling track body 9 being arranged in the middle part of excircle, in its double row angular contact The both ends spacing distance of spherical rolling track body 9 is corresponding to be respectively provided with a row cylinder roller track 14, in cylindrical roller track 14 Interior each setting cylindrical roller 17,

The concentric setting of the deep groove ball bearing inside race 5 between two double half inside races 2, and with variable diameter centre circle 1 The circle zanjon spherical rolling body track 10 being arranged in the middle part of inner periphery is corresponding, is combined by spherical rolling body 24, forms zanjon The middle Place structure of ball ball bearing

Double half inside races 2 of described two are separately positioned on the both ends of deep groove ball bearing inside race 5, two double half inside races 2 excircle is respectively provided with a circle annulus roller track 13,

Double half outer collars 3 of described two are concentric to be separately positioned on the biserial angle being arranged in the middle part of 1 excircle of variable diameter centre circle The two sides of spherical rolling track body 9 are contacted, are respectively provided with a circle cylindrical roller track in the middle part of two 3 inner peripherys of double half outer collars 14, it is respectively provided with cylindrical roller outer blocking shoulder 19 in the outer end of the cylindrical roller track 14, it is each in the inner end of the cylindrical roller track 14 Cylindrical roller inner baffle shoulder 20 is set, and is respectively provided with the spherical rolling track body of angular contact in the inner periphery of cylindrical roller home record shoulder 20 11, the spherical rolling track body 11 of the angle touching of this two double half outer collar, 3 cylindrical roller inner baffle shoulder 20 settings is respectively and in variable diameter It is corresponding to enclose two circle double row angular contact spherical rolling track bodies 9 being arranged in the middle part of 1 excircle, is combined by spherical rolling body 24, Form the middle Place structure of double-row angular contact bal bearing.

Embodiment 6:

" novel high speed high-speed rail wheel shaft power bearing " as shown in FIG. 6, comprising: 1, deep-groove ball axis of a variable diameter centre circle Hold inside race 5, two double half inside race, 2, two double half outer collars 3 and inside and outside two layers of rolling element；Variable diameter centre circle 1 is in excircle The middle part of axial distance is equipped with two circle double row angular contact spherical rolling track bodies 9, in 1 inner periphery axial distance of variable diameter centre circle Portion is equipped with a circle zanjon spherical rolling body track 10, and zanjon spherical rolling body raceway 10 is arranged in opposite 1 inner circle of variable diameter centre circle Between two circle tracks of the double row angular contact spherical rolling track body 9 that all middle parts are arranged, variable diameter centre circle is formed, in variable diameter centre circle 1 Spherical rolling body 24 is set in the zanjon spherical rolling body track 10 being arranged in the middle part of inner periphery, in its zanjon spherical rolling body track 10 both ends spacing distance is corresponding to be respectively provided with a row cylinder roller track 14, cylindrical roller 17 is arranged in track, in variable diameter It encloses in the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 excircle and spherical rolling body 24 is respectively set, in its biserial corner connection The both ends spacing distance of touching spherical rolling track body 9 is corresponding to be respectively provided with a row cylinder roller track 14, in cylindrical roller track Cylindrical roller 17 is respectively set in 14,

The concentric setting of the deep groove ball bearing inside race 5 between two double half inside races 2, and with variable diameter centre circle 1 The circle zanjon spherical rolling body track 10 being arranged in the middle part of inner periphery is corresponding, is combined by spherical rolling body 24, forms zanjon The middle Place structure of ball ball bearing

Double half inside races 2 of described two are separately positioned on the two sides of deep groove ball bearing inside race 5, in two double half inner sleeves The excircle of circle 2 is respectively provided with cylindrical roller track 14, is equipped with cylindrical roller outer blocking shoulder 19 in the outer end of the cylindrical roller track 14,

Double half outer collars 3 of described two are concentric to be separately positioned on the biserial angle being arranged in the middle part of 1 excircle of variable diameter centre circle The two sides of spherical rolling track body 9 are contacted, are respectively provided with a circle cylindrical roller track in the middle part of two 3 inner peripherys of double half outer collars 14, cylindrical roller outer blocking shoulder 19, cylindrical roller track are respectively provided in the outer end of two 3 cylindrical roller tracks 14 of double half outer collars Cylindrical roller inner baffle shoulder 20 is respectively arranged in 14 inner end, and is respectively provided with the spherical shape of angular contact in the inner periphery of cylindrical roller home record shoulder 20 Track body 11 is rolled, the spherical rolling track body 11 of the angle touching of this two double half outer collar, 3 cylindrical roller inner baffle shoulder 20 settings divides It is not corresponding with the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 excircle of variable diameter centre circle, pass through spherical rolling body 24 Combination, forms the middle Place structure of double-row angular contact bal bearing.

Embodiment 7:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 7, comprising: in a variable diameter: 1, two double half inner sleeves 2, two double half outer collars 3 of circle and inside and outside two layers of rolling element；Middle part spacing distance of the variable diameter centre circle 1 in excircle axial distance Equipped with two circle double row angular contact spherical rolling track bodies 9, a circle zanjon is equipped at the middle part of 1 inner periphery axial distance of variable diameter centre circle Pair being arranged in the middle part of opposite 1 inner periphery of variable diameter centre circle is arranged in spherical rolling track body 10, zanjon spherical rolling body raceway 10 Between two circle tracks of column angular contact spherical rolling body track 9, variable diameter centre circle is formed, is arranged in the middle part of 1 inner periphery of variable diameter centre circle Zanjon spherical rolling body track 10 in be arranged spherical rolling body 24, in the both ends interval distance of its zanjon spherical rolling body track 10 It is respectively provided with a row cylinder roller track 14 from corresponding, cylindrical roller 17 is respectively set in the cylindrical roller track, in variable diameter It encloses in the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 excircle and spherical rolling body 24 is respectively set, in its biserial corner connection The both ends spacing distance of touching spherical rolling track body 9 is corresponding to be respectively provided with a row cylinder roller track 14, in the cylindrical roller rail Cylindrical rolling element 17 is respectively set in road 14,

Double half inside races 2 of described two are concentric to be separately positioned on the deep-groove ball being arranged in the middle part of 1 inner periphery of variable diameter centre circle Shape rolls the two sides of track body 10, is respectively provided with a circle cylindrical roller track 14, outer circle in the middle part of two 2 excircles of double half inside races The middle part in week is respectively provided with cylindrical roller track 14, is respectively provided with cylindrical roller outer blocking shoulder 19 in the outer end of its cylindrical roller track 14, It is respectively provided with cylindrical roller inner baffle shoulder 20 in the inner end of its cylindrical roller track 14, and in the outer of 20 end of cylindrical roller inner baffle shoulder Three point contact spherical rolling track body 12 is respectively arranged in circumference, and the three of this two double half inside race, 2 cylindrical roller inner baffle shoulder 20 settings Point contact spherical rolling body track 12 is corresponding with the zanjon spherical rolling body track 10 of 1 inner periphery of variable diameter centre circle setting respectively, It is combined by spherical rolling body 24, forms the middle Place structure of three-point contact ball bearing,

Double half outer collars 3 of described two are concentric to be separately positioned on the biserial angle being arranged in the middle part of 1 excircle of variable diameter centre circle The two sides of spherical rolling track body 9 are contacted, are respectively provided with a circle cylindrical roller track in the middle part of two 3 inner peripherys of double half outer collars 14, it is respectively provided with cylindrical roller outer blocking shoulder 19 in the outer end of the cylindrical roller track 14, it is each in the inner end of the cylindrical roller track 14 Cylindrical roller inner baffle shoulder 20 is set, and is respectively provided with the spherical rolling body rail of angular contact in the inner periphery of the cylindrical roller home record shoulder 20 Road 11, the spherical rolling track body 11 of the angle touching of this two double half outer collar, 3 cylindrical roller inner baffle shoulders 20 settings respectively with variable diameter The double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 excircle of centre circle is corresponding, is combined by spherical rolling body 24, shape At the middle Place structure of double-row angular contact bal bearing.

Embodiment 8:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 8, comprising: variable diameter centre circle 1, two double half inner sleeves 2, two double half outer collars 3 of circle and inside and outside two layers of rolling element；Variable diameter centre circle 1 is equipped with two circles at the middle part of excircle axial distance Double row angular contact angular contact spherical rolling body track 9 is equipped with a circle deep-groove ball at the middle part of 1 inner periphery axial distance of variable diameter centre circle Shape rolls track body 10, and the biserial being arranged in the middle part of opposite 1 excircle of variable diameter centre circle is arranged in zanjon spherical rolling body raceway 10 Between two circle tracks of angular contact spherical rolling body track 9, variable diameter centre circle is formed, is arranged in the middle part of 1 inner periphery of variable diameter centre circle Spherical rolling body 24 is set in zanjon spherical rolling body track 10, in the both ends spacing distance of its zanjon spherical rolling body track 10 It is corresponding to be respectively provided with row's taper roller track 15, taper roller 18 is respectively set in the taper roller track 15, in variable diameter It encloses in the double row angular contact spherical rolling track body 9 being arranged in the middle part of 1 excircle and spherical rolling body 24 is respectively set, in its biserial corner connection The two sides spacing distance of touching spherical rolling track body 9 is corresponding to be respectively provided with a row cylinder roller track 14, in the cylindrical roller rail Cylindrical roller 17 is respectively set in road 14,

Double half inside races 2 of described two are concentric to be separately positioned on the deep-groove ball being arranged in the middle part of 1 inner periphery of variable diameter centre circle Shape rolls the two sides of track body 10, a circle taper roller track 15 is respectively provided in the middle part of two 2 excircles of double half inside races, at it The outer end of taper roller track 15 is equipped with taper roller outer blocking shoulder 21, is respectively provided with circular cone rolling in the inner end of its taper roller track 15 Sub- inner baffle shoulder 22, and three point contact spherical rolling track body 12 is respectively arranged in the excircle in 22 end of taper roller inner baffle shoulder, The three point contact spherical rolling track body 12 of this two double half inside race, 2 taper roller inner baffle shoulders 22 settings respectively with variable diameter centre circle The zanjon spherical rolling body track phase 10 of 1 inner periphery setting is corresponding, is combined by spherical rolling body 24, forms three point contact ball axis The middle Place structure held,

Double half outer collars 3 of described two are concentric to be separately positioned on the biserial angle being arranged in the middle part of 1 excircle of variable diameter centre circle The two sides of spherical rolling track body 9 are contacted, are respectively provided with a circle cylindrical roller track in the middle part of two 3 inner peripherys of double half outer collars 14, it is equipped with cylindrical roller outer blocking shoulder 19 in the outer end of the cylindrical roller track 14, is respectively set in the inner end of the cylindrical roller track 14 There is cylindrical roller inner baffle shoulder 20, and angular contact spherical rolling body track is respectively set in the inner periphery of the cylindrical roller inner baffle shoulder 20 11, the angular contact spherical rolling body track 11 of this two double half outer collar 3 settings is double with the setting of 1 excircle of variable diameter centre circle respectively Column angular contact spherical rolling body track 9 is corresponding, is combined by spherical rolling body 24, forms the middle Place of three-point contact ball bearing Structure.

Embodiment 9:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 9, comprising: variable diameter centre circle 1, two double half inner sleeves 2, two double half outer collars 3 of circle and inside and outside two layers of rolling element；Including variable diameter centre circle 1, the middle part interval of excircle axial distance Distance is respectively provided with a circle zanjon spherical rolling body track 10, forms variable diameter centre circle, each in the zanjon spherical rolling body track 10 Spherical rolling body 24 is set, at the both ends interval of the respectively arranged zanjon spherical rolling body track 10 of the inside and outside circumference of variable diameter centre circle 1 It is respectively provided with a row cylinder roller track 14 apart from corresponding, cylindrical roller 17 is respectively set in the cylindrical roller track 14,

Double half inside races 2 of described two are concentric to be separately positioned on the deep-groove ball being arranged in the middle part of 1 inner periphery of variable diameter centre circle Shape rolls the two sides of track body 10, a circle cylindrical roller track 14 is respectively provided in the middle part of two 2 excircles of double half inside races, at this The outer end of cylindrical roller track 14 is respectively provided with cylindrical roller outer blocking shoulder 19, and cylinder is respectively arranged in the inner end of the cylindrical roller track 14 Roller inner baffle shoulder 20, and the excircle in its 20 end of cylindrical roller home record shoulder is respectively provided with the spherical rolling track body of three point contact 12, the spherical rolling track body 12 of the three point contact of this two double half inside race 2 settings and 1 inner periphery of variable diameter centre circle middle part are arranged Zanjon spherical rolling body track 10 it is corresponding, combined by spherical rolling body 24, form the middle Place of three-point contact ball bearing Structure

Double half outer collars 3 of described two are concentric to be separately positioned on the biserial angle being arranged in the middle part of 1 excircle of variable diameter centre circle The two sides of spherical rolling track body 9 are contacted, are respectively provided with a circle cylindrical roller track in the middle part of two 3 inner peripherys of double half outer collars 14, it is respectively provided with cylindrical roller outer blocking shoulder 19 in the outer end of the cylindrical roller track 14, it is each in the inner end of the cylindrical roller track 14 Cylindrical roller inner baffle shoulder 20 is set, and the inner periphery in 20 end of cylindrical roller home record shoulder is respectively provided with the spherical rolling of three point contact Track body 12, in the spherical rolling track body 12 and variable diameter centre circle excircle of the three point contact of this two double half outer collars 3 settings The zanjon spherical rolling body track 10 of portion's setting is corresponding, is combined by spherical rolling body 24, forms three-point contact ball bearing Middle Place structure.

Embodiment 10:

" novel high speed high-speed rail wheel shaft power bearing " as shown in Figure 10, comprising: 1, biserial depth of a variable diameter centre circle Ditch ball bearing outer collar 7, two double half inside race, 2, two double half outer collars 3 and inside and outside two layers of rolling element；Variable diameter centre circle 1 exists The middle part of excircle axial distance is equipped with two circle biserial zanjon spherical rolling body tracks 8, in 1 inner periphery axial distance of variable diameter centre circle Middle part be equipped with one circle zanjon spherical rolling body track 10, zanjon spherical rolling body raceway 10 be arranged in opposite variable diameter centre circle 1 Between two circle tracks of the biserial zanjon spherical rolling body track 8 being arranged in the middle part of excircle, variable diameter centre circle is formed, in variable diameter centre circle Spherical rolling body 24 is respectively set in the zanjon spherical rolling body track 10 being arranged in the middle part of 1 inner periphery, in its zanjon spherical rolling body The both ends spacing distance of track 10 is corresponding to be respectively provided with a row cylinder roller 14, and cylinder is respectively arranged in the cylindrical roller track 14 Spherical rolling body is respectively arranged in the biserial zanjon spherical rolling body track 8 being arranged in the middle part of 1 excircle of variable diameter centre circle in roller 17 24, row's cylindrical rolling element track is respectively provided with the both ends spacing distance of its biserial zanjon spherical rolling body track 8 is corresponding 14, cylindrical roller 17 is respectively set in the cylindrical roller track 14,

The concentric setting of the biserial deep groove ball bearing outer collar 7 between two double half outer collars 3, and in variable diameter It is corresponding to enclose the biserial deep-groove ball rolling track body 8 being arranged in the middle part of 1 excircle, is combined by spherical rolling body 24, forms biserial The middle Place structure of deep groove ball bearing,

The two sides of biserial deep groove ball bearing outer collar 7, two double half outer collars are arranged in double half outer collars 3 of described two 3 inner periphery is respectively provided with a circle cylindrical roller track 14, is respectively provided with cylindrical roller outer blocking shoulder in the outer end of cylindrical roller track 14 19,

Double half inside races 2 of described two are concentric to be separately positioned on the deep-groove ball being arranged in the middle part of 1 inner periphery of variable diameter centre circle Shape rolls the two sides of track body 10, a circle cylindrical roller track 14 is respectively provided in the middle part of two 2 excircles of double half inside races, at this The outer end of cylindrical roller track respectively sets cylindrical roller outer blocking shoulder 19, respectively sets cylinder rolling in the inner end of the cylindrical roller track inner periphery Three point contact spherical rolling track body 12 is respectively arranged in sub- inner baffle shoulder 20, the excircle of 20 end of cylindrical roller inner baffle shoulder, this two The three point contact spherical rolling track body 12 of a double half inside race, 2 cylindrical roller inner baffle shoulder 20 settings is respectively and in variable diameter centre circle 1 The circle deep-groove ball rolling track body 10 being arranged in the middle part of circumference is corresponding, is combined by spherical rolling body 24, forms deep-groove ball axis The middle Place structure held.

Claims (10)

1. a kind of novel high speed high-speed rail wheel shaft power bearing, comprising: a variable diameter centre circle, two double half inside races, two double half Outer collar, a deep groove ball bearing outer collar and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is in inner periphery axis Two circle double row angular contact spherical rolling track bodies are equipped with to the middle part spacing distance of distance, in variable diameter centre circle excircle axial distance Middle part be equipped with one circle zanjon spherical rolling body track, zanjon spherical rolling body raceway be arranged in opposite variable diameter centre circle inner periphery Between two circle tracks of double row angular contact spherical rolling track body, variable diameter centre circle is formed, is arranged in the middle part of variable diameter centre circle inner periphery Two circle double row angular contact spherical rolling track bodies in spherical rolling body is respectively set, in its double row angular contact spherical rolling track body Both ends spacing distance it is corresponding be respectively provided with a row cylinder roller track, cylindrical roller is respectively set in the cylindrical roller track, Spherical rolling body is set in the zanjon spherical rolling body track being arranged in the middle part of variable diameter centre circle excircle, in its zanjon spherical rolling The both ends spacing distance of track body is corresponding to be respectively provided with row's annulus roller track, and annulus is respectively arranged in the annulus roller track Roller,

Double half inside races of described two are concentric to be separately positioned on two circle biserial corner connections being arranged in the middle part of variable diameter centre circle inner periphery The two sides of spherical rolling track body are touched, a circle cylindrical roller track are respectively provided in the middle part of two double half inside race excircles, at this The outer end of cylindrical roller track is respectively provided with cylindrical roller outer blocking shoulder, is respectively arranged in cylindrical roller in the inner end of cylindrical roller track and keeps off Shoulder, and angular contact spherical rolling body track, two double half inside race cylinders are respectively set in the excircle of its cylindrical roller inner baffle shoulder The double row angular contact that the angular contact spherical rolling body track of roller inner baffle shoulder setting is arranged with variable diameter centre circle inner periphery middle part respectively Ball rolling track body is corresponding, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing,

The deep groove ball bearing outer collar is concentric to be arranged between two double half outer collars, and with setting outside variable diameter centre circle A circle zanjon spherical rolling body track in the middle part of circumference is corresponding, is combined, is formed in deep groove ball bearing by spherical rolling body Place structure,

Described two double half outer collars are separately positioned on the two sides of deep groove ball bearing outer collar, the inner periphery of two double half outer collars It is respectively provided with a circle annulus roller track.

2. a kind of novel high speed high-speed rail wheel shaft power bearing according to claim 1, it is characterized in that: the variable diameter centre circle The both ends spacing distance for the circle zanjon spherical rolling body track being arranged in the middle part of excircle is corresponding to be respectively provided with row's cylinder rolling Cylindrical roller is respectively arranged in the cylindrical roller track in sub-track,

The inner periphery of described two double half outer collars is respectively provided with a circle cylindrical roller track, each in the outer end of its cylindrical roller track Cylindrical roller outer blocking shoulder is set.

3. a kind of novel high speed high-speed rail wheel shaft power bearing according to claim 1 to 2, it is characterized in that: two double half The concentric two sides for being separately positioned on zanjon spherical rolling body track in the middle part of variable diameter centre circle excircle of outer collar, outside two double half It is respectively provided with cylindrical roller track in the middle part of lasso inner periphery, is respectively arranged outside cylindrical roller in the outer end of its cylindrical roller track and keeps off Cylindrical roller inner baffle shoulder is respectively arranged in cylindrical roller track inner end in shoulder, and in two double half outer collar cylindrical roller inner baffle shoulders Three point contact spherical rolling track body is respectively arranged in the end of circumference, and the three of this two double half outer collar cylindrical roller inner baffle shoulder settings Point contact spherical rolling body track is corresponding with the zanjon spherical rolling body track being arranged in the middle part of variable diameter centre circle excircle respectively, leads to Spherical rolling body combination is crossed, the middle Place structure of three-point contact ball bearing is formed.

4. a kind of novel high speed high-speed rail wheel shaft power bearing, comprising: a variable diameter centre circle, a biserial deep groove ball bearing inner sleeve Circle, two double half inside races, two double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is in inner circle The middle part spacing distance of all axial distances is equipped with two circle biserial zanjon spherical rolling body tracks, variable diameter centre circle excircle it is axial away from From middle part be equipped with one circle zanjon spherical rolling body track, zanjon spherical rolling body track be arranged in opposite variable diameter centre circle inner circle Between two circle tracks of Zhou Shuanlie zanjon spherical rolling body track, variable diameter centre circle is formed, in the inside and outside circumference setting of variable diameter centre circle Spherical rolling body is respectively set in zanjon spherical rolling body track, the biserial zanjon spherical rolling body rail in the middle part of variable diameter centre circle inner periphery The both ends spacing distance in road is corresponding to be respectively provided with a row cylinder roller track, and cylinder rolling is respectively arranged in the cylindrical roller track Son, the both ends spacing distance of a circle spherical rolling track body is corresponding in the middle part of variable diameter centre circle excircle is respectively provided with row's cylinder rolling Cylindrical roller is respectively arranged in the cylindrical roller track in sub-track,

The concentric setting of the biserial deep groove ball bearing inside race between two double half inside races, and with variable diameter centre circle inner circle The biserial deep-groove ball rolling track body that all middle parts are arranged is corresponding, is combined by spherical rolling body, forms biserial deep groove ball bearing Middle Place structure,

The two sides of biserial deep groove ball bearing inside race, the outer circle of two double half inside races is arranged in double half inside races of described two It is respectively provided with a circle cylindrical roller track week, cylindrical roller outer blocking shoulder is respectively set in the outer end of the cylindrical roller track,

Described two double, and half outer collar is concentric is arranged in two of zanjon spherical rolling body track in the middle part of variable diameter centre circle excircle Side is respectively provided with cylindrical roller track in the middle part of two double half outer collar inner peripherys, respectively sets in the outer end of the cylindrical roller track Cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, in its cylindrical roller inner baffle shoulder in cylindrical roller outer blocking shoulder Three point contact spherical rolling track body is respectively arranged in the end of circumference, and the three of this two double half outer collar cylindrical roller inner baffle shoulder settings Point contact spherical rolling body track is corresponding with the circle deep-groove ball rolling track body being arranged in the middle part of variable diameter centre circle excircle respectively, It is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing.

5. a kind of novel high speed high-speed rail wheel shaft power bearing, comprising: a variable diameter centre circle, deep groove ball bearing inside race, two A double half inside races, two double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is in excircle axis Two circle double row angular contact spherical rolling track bodies are equipped with to the middle part spacing distance of distance, in variable diameter centre circle inner periphery axial distance Middle part be equipped with one circle zanjon spherical rolling body track, zanjon spherical rolling body track be arranged in opposite variable diameter centre circle excircle Between two circle tracks of double row angular contact spherical rolling track body, variable diameter centre circle is formed, is arranged in the middle part of variable diameter centre circle inner periphery Zanjon spherical rolling body track in be arranged spherical rolling body, the two of its variable diameter centre circle inner periphery zanjon spherical rolling body track Spacing distance is corresponding is respectively provided with row's annulus roller track at end, annulus roller is respectively arranged in annulus roller track, in variable diameter Spherical rolling body is respectively set in the double row angular contact spherical rolling track body being arranged in the middle part of centre circle excircle, outside its variable diameter centre circle The both ends spacing distance of the circle angular contact spherical rolling body track of circumference two is corresponding to be respectively provided with a row cylinder roller track, in cylinder Cylindrical roller is respectively set in roller track,

The concentric setting of the deep groove ball bearing inside race between two double half inside races, and in variable diameter centre circle inner periphery One circle zanjon spherical rolling body track of portion's setting is corresponding, is combined, is formed in deep-groove ball ball bearing by spherical rolling body Place structure

Described two double half inside races are separately positioned on the two sides of deep groove ball bearing inside race, two double half inside race it is outer Circumference is respectively provided with a circle annulus roller track,

Double half outer collars of described two are concentric to be arranged in the middle part of variable diameter centre circle excircle double row angular contact spherical rolling body rail The two sides in road are respectively provided with cylindrical roller track in the middle part of two double half outer collar inner peripherys, in the outer of the cylindrical roller track End is respectively provided with cylindrical roller outer blocking shoulder, cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, and in cylindrical roller The spherical rolling track body of angular contact is respectively arranged in the inner periphery of home record shoulder, this two double half outer collar cylindrical roller track inner baffle shoulders The double row angular contact spherical rolling body that the angular contact spherical rolling body track of setting is arranged with variable diameter centre circle excircle middle part respectively Track is corresponding, is combined by spherical rolling body, forms the middle Place structure of double-row angular contact bal bearing.

6. a kind of novel high speed high-speed rail wheel shaft power bearing according to claim 5, it is characterized in that: the variable diameter centre circle The both ends spacing distance for the circle zanjon spherical rolling body track being arranged in the middle part of inner periphery is respectively provided with a circle cylindrical roller track, Cylindrical roller is respectively set in cylindrical roller track,

Double half inside races of described two are respectively provided with cylindrical roller track, two double half inside race cylindrical roller rails in its excircle The outer end in road is respectively provided with cylindrical roller outer blocking shoulder.

7. according to a kind of any novel high speed high-speed rail wheel shaft power bearing of claim 5-6, it is characterized in that: two double half The concentric two sides for being separately positioned on zanjon spherical rolling body track in the middle part of variable diameter centre circle inner periphery of inside race, in two double half It is respectively provided with cylindrical roller track in the middle part of lasso excircle, is respectively provided with outside cylindrical roller and keeps off in the outer end of its cylindrical roller track Shoulder is respectively provided with cylindrical roller inner baffle shoulder in the inner end of cylindrical roller track, and the excircle in cylindrical roller inner baffle shoulder end is each Three point contact spherical rolling track body, the three point contact spherical rolling of two double half inside race cylindrical roller inner baffle shoulder settings are set Track body is corresponding with the zanjon spherical rolling body track being arranged in the middle part of variable diameter centre circle inner periphery respectively, passes through spherical rolling body group It closes, forms the middle Place structure of three-point contact ball bearing.

8. a kind of novel high speed high-speed rail wheel shaft power bearing according to claim 5, it is characterized in that: the variable diameter centre circle The both ends spacing distance for the circle zanjon spherical rolling body track being arranged in the middle part of inner periphery is corresponding to be respectively provided with row's taper roller Taper roller is respectively arranged in track in track,

It is respectively provided with taper roller track in the middle part of the double half inside race excircles of described two, it is each in the outer end of taper roller track Equipped with taper roller outer blocking shoulder, it is respectively provided with taper roller inner baffle shoulder in the inner end of taper roller track, and in the taper roller Three point contact spherical rolling track body, two double half inside race taper roller inner baffle shoulder settings are respectively arranged in the excircle of shoulder block end Three point contact spherical rolling track body it is opposite with the zanjon spherical rolling body track being arranged in the middle part of variable diameter centre circle inner periphery respectively It answers, is combined by spherical rolling body, form the middle Place structure of three-point contact ball bearing.

9. a kind of novel high speed high-speed rail wheel shaft power bearing, comprising: a variable diameter centre circle, two double half inside races, two double half Outer collar and inside and outside two layers of rolling element；It is characterized in that: including the variable diameter centre circle, the middle part interval distance of excircle axial distance From a circle zanjon spherical rolling body track is respectively provided with, variable diameter centre circle is formed, respectively setting is spherical in zanjon spherical rolling body track Rolling element, the both ends spacing distance of the inside and outside circumference zanjon spherical rolling body track of variable diameter centre circle it is corresponding be respectively provided with a row circle Cylindrical roller is respectively arranged in the cylindrical roller track in column roller track,

Described two double, and half inside race is concentric is arranged in two of zanjon spherical rolling body track in the middle part of variable diameter centre circle inner periphery Side is respectively provided with cylindrical roller track in the middle part of two double half inside race excircles, in two double half inside race cylindrical roller rails The outer end in road is respectively provided with cylindrical roller outer blocking shoulder, and cylindrical roller inner baffle shoulder is respectively arranged in inner end, and in its cylindrical roller home record shoulder The excircle of end is respectively provided with the spherical rolling track body of three point contact, two double half inside race cylindrical roller home record point of shoulder head The zanjon spherical rolling body rail that the spherical rolling track body of the three point contact of setting is arranged with variable diameter centre circle inner periphery middle part respectively Road is corresponding, is combined by spherical rolling body, forms the middle Place structure of three-point contact ball bearing

Described two double, and half outer collar is concentric is arranged in two of zanjon spherical rolling body track in the middle part of variable diameter centre circle excircle Side is respectively provided with cylindrical roller track in the middle part of two double half outer collar inner peripherys, in two double half outer collar cylindrical roller rails The outer end in road is respectively provided with cylindrical roller outer blocking shoulder, and cylindrical roller inner baffle shoulder is respectively arranged in the inner end of cylindrical roller track, and at it The inner periphery of cylindrical roller home record point of shoulder head is respectively provided with the spherical rolling track body of three point contact, two double half outer collar cylinder The depth that the spherical rolling track body of the three point contact of roller home record point of shoulder head setting is arranged with variable diameter centre circle excircle middle part respectively Ditch spherical rolling track body is corresponding, is combined by spherical rolling body, forms the middle Place structure of three-point contact ball bearing.

10. a kind of novel high speed high-speed rail wheel shaft power bearing, comprising: a variable diameter centre circle, a biserial deep groove ball bearing housing Circle, two double half inside races, two double half outer collars and inside and outside two layers of rolling element；It is characterized in that: the variable diameter centre circle is in outer circle The middle part of all axial distances is equipped with two circle biserial zanjon spherical rolling body tracks, at the middle part of variable diameter centre circle inner periphery axial distance Equipped with a circle zanjon spherical rolling body track, which is arranged in opposite centre circle excircle biserial deep-groove ball Shape rolls between two circle tracks of track body, forms variable diameter centre circle, in the zanjon spherical rolling of the inside and outside circumference setting of variable diameter centre circle Spherical rolling body is respectively set in track body, in the middle part of its variable diameter centre circle excircle between the both ends of biserial zanjon spherical rolling body track Gauge is respectively provided with a row cylinder roller track from corresponding, cylindrical roller is respectively arranged in cylindrical roller track, in variable diameter centre circle The both ends spacing distance for the circle spherical rolling track body being arranged in the middle part of inner periphery is corresponding to be respectively provided with a row cylinder roller track, Cylindrical roller is respectively set in cylindrical roller track,

The concentric setting of the biserial deep groove ball bearing outer collar between two double half outer collars, and with variable diameter centre circle outer circle The biserial deep-groove ball rolling track body that all middle parts are arranged is corresponding, is combined by spherical rolling body, forms biserial deep groove ball bearing Middle Place structure,

Described two double half outer collars are separately positioned on the two sides of biserial deep groove ball bearing outer collar, two double half outer collars Inner periphery is respectively provided with a circle cylindrical roller track, is respectively provided with cylindrical roller in the outer end of two double half outer collar cylindrical roller tracks Outer blocking shoulder,

Described two double, and half inside race is concentric is arranged in two of zanjon spherical rolling body track in the middle part of variable diameter centre circle inner periphery Side is respectively provided with cylindrical roller track in the middle part of two double half inside race excircles, respectively sets in the outer end of its cylindrical roller track Cylindrical roller outer blocking shoulder is set, respectively sets cylindrical roller inner baffle shoulder in the inner end of cylindrical roller track, and in its cylindrical roller inner baffle shoulder Three point contact spherical rolling track body is respectively arranged in the excircle of end, outside this two double half inside race cylindrical roller track inner baffle shoulders The three point contact spherical rolling track body of circumference end setting encloses deep-groove ball with one of setting in the middle part of variable diameter centre circle inner periphery respectively It is corresponding to roll track body, is combined by spherical rolling body, forms the middle Place structure of deep groove ball bearing.