CN209761996U - heavy-load high-speed rail bearing provided with crossed rollers and balls arranged in crossed rollers - Google Patents
heavy-load high-speed rail bearing provided with crossed rollers and balls arranged in crossed rollers Download PDFInfo
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- CN209761996U CN209761996U CN201920516440.0U CN201920516440U CN209761996U CN 209761996 U CN209761996 U CN 209761996U CN 201920516440 U CN201920516440 U CN 201920516440U CN 209761996 U CN209761996 U CN 209761996U
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Abstract
The utility model relates to a heavy load high-speed railway bearing. The heavy-load high-speed rail bearing with the crossed roller middle ball comprises an outer ring, two double-half inner rings, a row of crossed spherical rollers and two rows of cylindrical rollers, wherein the two rows of crossed spherical rollers are arranged on the outer ring: the utility model discloses a be equipped with round cross elliptical spherical roller track in the middle part of the interior circumference axial distance of outer lasso, set up spherical roller in this elliptical spherical roller track alternately, respectively set up round cylindrical roller track at the both ends interval distance of this cross elliptical spherical roller track, respectively set up cylindrical roller in cylindrical roller track, respectively be equipped with round cylindrical roller track in the middle part of the outer circumference of two half inner lassos, respectively set up cylindrical roller in the track, respectively set up cross elliptical spherical roller track at the end of the outer circumference of this cylindrical roller track inner, this cross elliptical spherical roller track respectively with the cross spherical roller combination that the outer lasso inner circumference middle part set up, form the heavy load high-speed railway bearing of cross spherical roller center-located ball, the utility model discloses with the complementary combination of the advantage of cross roller bearing and cylindrical roller, make the bearing possess high accuracy, high rigidity, High bearing capacity, low friction and long service life.
Description
Technical Field
The utility model relates to a high-speed railway bearing.
background
At present: the high-speed rail bearing manufactured in developed countries in the world is still a double-section tapered roller bearing manufactured by means of advanced bearing materials and process technologies, and research data show that: the mechanical structure of the double-section tapered roller bearing has a plurality of fatal defects, such as:
(1) Stress concentration: stress concentration at the end part of a roller of the tapered roller bearing is an inherent fatal defect which cannot be radically treated, and the common main harm is that indentation and peeling of a raceway are caused;
(2) the roller is easily skewed: the biggest inherent fatal defect of the tapered roller bearing is roller deflection caused by uneven stress of a roller contact line in rotation of complex moment, when the roller deflects, the contact surface of the roller is not in line contact with a raceway any more, but is tightly clamped between an inner raceway and an outer raceway like a wedge at a certain angle, the indentation, the peeling, the retainer cracking or the flange cracking of the raceway of the ferrule are directly caused, the defect of the inherent mechanical structure of the roller cannot be corrected by adopting a method for increasing the roller convexity and the mechanical essence of the stress concentration of the roller end can not be changed,
(3) hazards caused by tapered roller contact angles:
A: because: the friction resistance of the tapered roller bearing is increased along with the increase of the roller contact angle, so the starting friction resistance can be increased by 4-8 times along with the increase of the roller contact angle, and the sliding friction during starting can be directly caused, because: the mechanical principle of the combined load of the tapered roller bearing is realized by the size of a roller contact angle, namely: the tapered roller directly distributes the load received by the tapered roller in the radial direction and the axial direction of the bearing according to the size of the contact angle, so that: the cone bearing directly derives constant axial force and causes inherent serious defects, the axial force caused by a contact angle is the same as the principle of a lateral adjusting nozzle of a rocket jet engine, and when the rocket does not need the lateral jet adjusting direction, lateral jet is always carried out, which is how harmful, and the high-speed rail bearing is the same principle, for example: when the high-speed rail runs linearly for a long time without large axial load, the tapered roller still derives constant axial force according to the roller contact angle, and the generated friction resistance and friction heating are always forced on the bearing, which is unreasonable, and the friction resistance and friction heating of the bearing are directly increased meaninglessly, and the roller is promoted to generate skew sliding and other hazards.
B: the sliding friction of bearing gravity between the end face of the large end of the tapered roller and the flange of the ferrule is an uncorrectable congenital defect, and the SKF data shows that: because the loads acting on the flanges cannot be evenly distributed, the abrasion is increased and even the flanges are likely to break (SKF bearing comprehensive type record P506 page), the larger the roller contact angle is, the larger the friction resistance borne by the flanges is, the more the roller contact angle is, the more the grease lubrication difficulty and the high-speed performance are increased, the bearing deflection, the bearing heating and the edge breakage are easily caused, and a plurality of potential safety hazards in the high-speed rotation of the bearing can be directly caused,
disclosure of Invention
in view of the technological not enough that two sections tapered roller high-speed railway bearings exist, the utility model discloses the high bearing capacity that utilizes cross roller bearing to have, high accuracy, the mechanical properties of high rigidity, utilize the ring roller, the spherical roller, little and the ring roller of the big friction of cylindrical roller bearing capacity, the aligning function of spherical roller, can both be with the characteristic of pressure evenly distributed in each department of roller when any moment operating mode, the heavily loaded high-speed railway bearing who sets up cross roller center ball is proposed, make cross roller bearing and two sections cylindrical roller, two sections ring roller, two sections spherical roller form the advantage complementary, so that make the bearing possess high accuracy, high rigidity, high bearing capacity, long-life effect, the utility model discloses a technical scheme who realizes that above-mentioned purpose adopts is:
A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer ring, two half inner ring, put spherical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the inner circumference of the outer race, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of cylindrical roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
The double-half inner ring is respectively provided with a circle of cylindrical roller track in the middle of the outer circumference of the two double-half inner ring rings, the outer end of the cylindrical roller track is respectively provided with a cylindrical roller outer retaining shoulder, the inner end of the cylindrical roller track is respectively provided with a cylindrical roller inner retaining shoulder, the end heads of the outer circumferences of the inner ends of the two double-half inner ring rings are respectively provided with a crossed elliptical spherical roller track, the two double-half inner ring rings are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track in the middle of the inner circumference of the outer ring and cylindrical rollers arranged at two ends through the crossed elliptical spherical roller track arranged at the end head of the outer circumference of the inner end and the cylindrical roller track arranged in the middle of the outer circumference of the outer ring.
A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put spherical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the outer circumference of the inner ferrule, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of cylindrical roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
The double-half outer races are respectively provided with a circle of cylindrical roller track at the middle part of the inner circumference of the double-half outer races, the outer ends of the cylindrical roller tracks are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the inner circumferences of the inner ends of the double-half outer races are respectively provided with crossed elliptical spherical roller tracks, and the two double-half outer races are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track at the middle part of the outer circumference of the inner race and cylindrical rollers arranged at two ends through the crossed elliptical spherical roller tracks arranged at the inner ends of the inner circumferences and the cylindrical roller tracks arranged at the middle part of the outer circumference of the inner race to form a heavy-load high-.
A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer race, two half inner race, put spherical roller and two rings of ring roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the inner circumference of the outer ring, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of circular roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, circular rollers are respectively arranged in the circular roller tracks,
The outer sections of the outer circumferences of the two double-half inner ferrules are respectively provided with a circle of circular ring roller track, the ends of the outer circumferences of the inner ends of the two double-half inner ferrules are respectively provided with a crossed elliptical spherical roller track, the two double-half inner ferrules are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track in the middle of the inner circumference of the outer ferrule and circular ring rollers arranged at two ends of the outer circumference through the crossed elliptical spherical roller track arranged at the end of the outer circumference of the inner end and the circular ring roller track arranged at the outer circumference, and the heavy-load high-speed rail bearing with the spherical rollers arranged in the crossed elliptical spherical roller track is formed.
a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put spherical roller and two rings of ring roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the outer circumference of the inner ferrule, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of circular roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, circular rollers are respectively arranged in the circular roller tracks,
The outer sections of the inner circumferences of the two double-half outer races are respectively provided with a circle of circular ring roller track, the ends of the inner circumferences of the inner ends of the two double-half outer races are respectively provided with a crossed elliptical spherical roller track, the two double-half outer races are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track in the middle of the outer circumference of the inner race and circular ring rollers arranged at two ends through the crossed elliptical spherical roller track arranged at the end of the inner circumference of the inner end and the circular ring roller track arranged at the outer section of the inner circumference, and a heavy-load high-speed rail bearing with the spherical rollers arranged in the crossed elliptical spherical roller track is formed.
A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer race, two half inner race, put spherical roller and two rings of spherical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller tracks are arranged in the middle of the inner circumference of the outer race, a middle spherical roller is arranged in the crossed spherical roller tracks in a crossed manner, a circle of spherical roller tracks are respectively arranged at the two ends of the crossed spherical roller tracks at intervals, the spherical roller tracks and the vertical axis of the bearing form an angle of 1-20 degrees, spherical rollers are respectively arranged in the spherical roller tracks,
the middle parts of the outer circumferences of the two double-half inner ferrules are respectively provided with a circle of reverse spherical roller track, the curvature radius of the reverse spherical roller track is larger than the radius of the circumferential track of the bearing roller, and the outer ends of the reverse spherical roller tracks are respectively provided with a spherical roller outer retaining shoulder, after the two double-half inner ferrules are coaxially combined, the axial sections of the reverse spherical roller tracks respectively arranged at the middle parts of the outer circumferences of the two tracks are in a reverse spherical roller track structure, the end heads of the outer circumferences of the inner ends of the two double-half inner ferrules are respectively provided with a crossed elliptical spherical roller track, the two double-half inner ferrules are respectively combined with a middle spherical roller arranged in a crossed elliptical spherical roller track in the middle of the inner circumference of the outer ferrule and spherical rollers arranged at two ends through the crossed elliptical spherical roller track arranged at the end heads of the outer circumferences of the inner ends and a reverse spherical roller track arranged in the middle of the outer circumference, so that the heavy-load high-speed rail bearing with the spherical rollers arranged in the middle of the crossed elliptical spherical roller track is formed.
a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put spherical roller and two rings of spherical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller tracks are arranged in the middle of the outer circumference of the inner ferrule, a middle spherical roller is arranged in the crossed elliptical spherical roller tracks in a crossed manner, a circle of spherical roller tracks are respectively arranged at the two ends of the crossed elliptical spherical roller tracks at intervals, the spherical roller tracks and the vertical axis of the bearing form an angle of 1-20 degrees, spherical rollers are respectively arranged in the spherical roller tracks,
The outer sections of the inner circumferences of the two double-half outer races are respectively provided with a circle of elliptical spherical roller track, the curvature radius of the elliptical spherical roller track is larger than the radius of the bearing roller circumferential track, after the two double-half outer races are combined with the same axle center, the axial sections of the elliptical spherical roller tracks respectively arranged on the inner circumference outer sections are in an elliptical structure, the ends of the inner circumferences of the inner ends of the two double-half outer races are respectively provided with crossed elliptical spherical roller tracks, the two double-half outer races are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track arranged in the middle of the outer circumference of the inner race and a spherical roller arranged at two ends through the crossed elliptical spherical roller track arranged on the inner circumference inner end and the elliptical spherical roller track arranged on the inner circumference outer section, and the heavy-load high-iron bearing with the spherical roller arranged in the.
A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer ring, two half inner ring, put cylindrical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed cylindrical roller tracks are arranged in the middle of the inner circumference of the outer ring, centrally-mounted cylindrical rollers are arranged in the crossed cylindrical roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed cylindrical roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
The middle parts of the outer circumferences of the two double-half inner ring rings are respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks of the two double-half inner ring rings are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the outer circumferences of the inner ends of the two double-half inner ring rings are respectively provided with a cross-shaped cylindrical roller track, the two double-half inner ring rings are respectively combined with a middle cylindrical roller arranged in the cross-shaped cylindrical roller track at the middle part of the inner circumference of the outer ring and cylindrical rollers arranged at two ends of the outer circumference of the outer ring through the cross-shaped cylindrical roller track arranged at the outer circumferential end of the inner end and the cylindrical roller track arranged at the middle.
a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put cylindrical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed cylindrical roller tracks are arranged in the middle of the outer circumference of the inner ferrule, a middle cylindrical roller is arranged in the crossed cylindrical roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed cylindrical roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the middle of the inner circumference of the two double-half outer races is respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks in the inner circumference of the two double-half outer races are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the inner circumference of the inner ends of the two double-half outer races are respectively provided with a crossed cylindrical roller track, the two double-half outer races are respectively combined by the crossed cylindrical roller track arranged at the inner end of the inner circumference and a cylindrical roller arranged at the middle of the crossed cylindrical roller track arranged at the middle of the inner circumference, and a heavy-load high-speed iron bearing with the cylindrical roller arranged in the crossed cylindrical roller track is formed.
A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer ring, two half inner ring, put tapered roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed tapered roller tracks are arranged in the middle of the inner circumference of the outer ring, a middle tapered roller is arranged in the crossed tapered roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed tapered roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the heavy-load high-speed railway bearing is characterized in that the middle parts of the outer circumferences of the two double-half inner rings are respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks of the two double-half outer rings are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the outer circumferences of the inner ends of the two double-half inner rings are respectively provided with a crossed tapered roller track, the two double-half inner rings are respectively combined with a middle tapered roller arranged in the crossed tapered roller track in the middle of the inner circumference of the outer ring and cylindrical rollers arranged at two ends of the outer circumference of the outer ring through the crossed tapered roller track arranged at the outer circumferential end of the inner end and the cylindrical roller track arranged in.
a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, a circle of middle-placed tapered roller and two circles of cylindrical rollers: the method is characterized in that: a circle of crossed tapered roller tracks are arranged in the middle of the outer circumference of the inner ferrule, tapered rollers are arranged in the crossed tapered roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed tapered roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
The heavy-load high-speed railway bearing is characterized in that the middle parts of the inner circumferences of the two double-half outer races are respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks of the two double-half outer races are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the inner circumferences of the inner ends of the two double-half outer races are respectively provided with a crossed tapered roller track, the two double-half outer races are respectively combined with a middle tapered roller arranged in the crossed tapered roller track at the middle part of the outer circumference of the inner race and cylindrical rollers arranged at two ends of the cross tapered roller track at the middle part of the outer circumference of the inner race through the crossed tapered roller track at the inner ends, and.
The utility model has the advantages that: the crossed roller bearing is arranged among the double-section cylindrical rollers, the double-section annular rollers and the double-section spherical rollers to form advantage complementation, so that the bearing achieves the effects of high speed, heavy load and long service life.
Drawings
fig. 1 is a cross-sectional view of the heavy-load high-speed rail bearing with cylindrical rollers, in which crossed spherical rollers are arranged in the middle of the inner circumference of the outer race.
fig. 2 is a cross-sectional view of the heavy-load high-speed rail bearing with cylindrical rollers, in which crossed spherical rollers are arranged in the middle of the outer circumference of the inner race.
fig. 3 is a cross-sectional view of the heavy-duty high-speed rail bearing with the ring rollers, in which the crossed spherical rollers are arranged at the middle part of the inner circumference of the outer race.
Fig. 4 is a cross-sectional view of the heavy-duty high-speed rail bearing with the ring rollers and the balls arranged in the crossed spherical rollers at the middle part of the outer circumference of the inner ring.
fig. 5 is a cross-sectional view of the heavy-duty high-speed rail bearing with the reverse spherical roller track, in which crossed spherical rollers are arranged in the middle of the inner circumference of the outer race.
Fig. 6 is a cross-sectional view of the heavy-duty high-speed rail bearing with elliptical spherical rollers and crossed spherical rollers arranged in the middle of the outer circumference of the inner race.
Fig. 7 is a cross-sectional view of the cylindrical roller heavy-load high-speed rail bearing with crossed cylindrical rollers and balls arranged in the middle of the inner circumference of the outer race.
fig. 8 is a cross-sectional view of the heavy-duty high-speed rail bearing with crossed cylindrical rollers and balls arranged in the middle of the outer circumference of the inner race.
fig. 9 is a cross-sectional view of the heavy-duty high-speed rail bearing with cylindrical rollers, in which crossed tapered rollers are arranged at the middle part of the inner circumference of the outer race.
Fig. 10 is a cross-sectional view of the heavy-duty high-speed rail bearing with cylindrical rollers, in which crossed tapered rollers are arranged in the middle of the outer circumference of the inner race.
In the figure: 1. the spherical roller track comprises an outer race, 2, an inner race, 3, double-half inner races, 4, double-half outer races, 5, a crossed elliptical spherical roller track, 6, a middle spherical roller, 7, a crossed cylindrical roller track, 8, a middle cylindrical roller, 9, a crossed tapered roller track, 10, a middle tapered roller, 11, a cylindrical roller track, 12, a cylindrical roller, 13, a cylindrical roller outer blocking shoulder, 14, a cylindrical roller inner blocking shoulder, 15, a circular roller track, 16, a circular roller, 17, a spherical roller track, 17-1, a reverse spherical roller track, 18, a spherical roller, 19, a spherical roller outer blocking shoulder, 20 and an elliptical spherical roller track.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments, but the present invention is not limited to the specific embodiments.
Example 1:
A heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 1, comprising: an outer ring 1, two double-half inner rings 3, a circle of middle spherical rollers 6 and two rows of cylindrical rollers 12: a circle of crossed elliptical spherical roller track 5 is arranged in the middle of the axial distance of the inner circumference of the outer ring 1, a middle spherical roller 6 is arranged in the crossed elliptical spherical roller track 5 in a crossed manner, a circle of cylindrical roller track 11 is respectively arranged at the interval distance of the two ends of the crossed elliptical spherical roller track 5, cylindrical rollers 12 are respectively arranged in the cylindrical roller track 11,
The middle parts of the outer circumferences of the two double-half inner ferrules 3 are respectively provided with a circle of cylindrical roller track 11, the outer ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller outer retaining shoulder 13, the inner ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller inner retaining shoulder 14, the ends of the outer circumferences of the inner ends of the two double-half inner ferrules 3 are respectively provided with a crossed elliptical spherical roller track 5, the two double-half inner ferrules 3 are respectively combined with a middle spherical roller 6 arranged in the crossed elliptical spherical roller track 5 in the middle of the inner circumference of the outer ferrule 1 and cylindrical rollers 12 arranged at two ends through the crossed elliptical spherical roller track 5 arranged at the end of the outer circumference of the inner end and the cylindrical roller track 11 arranged in the middle of the outer circumference, and a heavy-load high-speed railway bearing of the crossed.
Example 2:
a heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 2, comprising: an inner ring 2, two double-half outer rings 4, a circle of middle spherical rollers 6 and two rows of cylindrical rollers 12: the method is characterized in that: a circle of crossed elliptical spherical roller track 5 is arranged in the middle of the axial distance of the outer circumference of the inner ferrule 2, a middle spherical roller 6 is arranged in the crossed elliptical spherical roller track 5 in a crossed manner, a circle of cylindrical roller track 11 is respectively arranged at the two ends of the crossed elliptical spherical roller track 5 at intervals, cylindrical rollers 12 are respectively arranged in the cylindrical roller track 11,
The middle parts of the inner circumferences of the two double-half outer races 4 are respectively provided with a circle of cylindrical roller track 11, the outer ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller outer retaining shoulder 13, the inner ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller inner retaining shoulder 14, the ends of the inner circumferences of the inner ends of the two double-half outer races 4 are respectively provided with a crossed elliptical spherical roller track 5, the two double-half outer races 4 are respectively combined with a middle spherical roller 6 arranged in a crossed elliptical spherical roller track at the middle part of the outer circumference of the inner race 2 and cylindrical rollers 12 arranged at two ends through the crossed elliptical spherical roller track 5 arranged at the end of the inner circumference of the inner end and the cylindrical roller track 11 arranged at the middle part of the inner circumference, so that the heavy-load high-speed railway bearing
Example 3:
a heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 3, comprising: an outer ring 1, two double-half inner rings 3, a circle of middle spherical roller 6 and two circles of ring rollers 16: a circle of crossed elliptical spherical roller tracks 5 are arranged in the middle of the axial distance of the inner circumference of the outer ring 1, a middle spherical roller 6 is arranged in the crossed elliptical spherical roller tracks 5 in a crossed manner, a circle of circular roller tracks 15 are respectively arranged at the two ends of the crossed elliptical spherical roller tracks 5 at intervals, circular rollers 16 are respectively arranged in the circular roller tracks,
The outer sections of the outer circumferences of the two double-half inner rings 3 are respectively provided with a circle of circular ring roller track 15, the ends of the outer circumferences of the inner ends of the two double-half inner rings 3 are respectively provided with a crossed elliptical spherical roller track 5, the two double-half inner rings 3 are respectively combined with a middle spherical roller 6 arranged in the crossed elliptical spherical roller track 5 in the middle of the inner circumference of the outer ring 1 and circular ring rollers 16 arranged at two ends through the crossed elliptical spherical roller track 5 arranged at the end of the outer circumference of the inner end and the circular ring roller track 15 arranged at the outer section of the outer circumference, and a heavy-load high-speed rail bearing with the spherical rollers arranged in the crossed elliptical spherical roller tracks.
example 4:
A heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 4, comprising: an inner ring 2, two double-half outer rings 4, a circle of middle spherical roller 6 and two circles of circular rollers 16: a circle of crossed elliptical spherical roller track 5 is arranged in the middle of the axial distance of the outer circumference of the inner ferrule 2, a middle spherical roller 6 is arranged in the crossed elliptical spherical roller track 5 in a crossed manner, a circle of circular roller track 15 is respectively arranged at the interval distance of the two ends of the crossed elliptical spherical roller track 5, circular rollers 16 are respectively arranged in the circular roller tracks,
the outer sections of the inner circumferences of the two double-half outer rings 4 are respectively provided with a circle of circular ring roller track 15, the ends of the inner circumferences of the inner ends of the two double-half outer rings 4 are respectively provided with a crossed elliptical spherical roller track 5, the two double-half outer rings 4 are respectively combined with a middle spherical roller 6 arranged in the crossed elliptical spherical roller track 5 in the middle of the outer circumference of the inner ring 2 and circular ring rollers 16 arranged at two ends through the crossed elliptical spherical roller track 5 arranged at the end of the inner circumference of the inner end and the circular ring roller track 15 arranged at the outer section of the inner circumference, and a heavy-load high-speed rail bearing with the spherical rollers arranged in the crossed elliptical spherical roller tracks.
Example 5:
A heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 5, comprising: an outer race 1, two double-half inner races 3, a circle of central spherical roller 6 and two circles of spherical rollers 18: a circle of crossed elliptical spherical roller tracks 5 are arranged in the middle of the inner circumference of the outer ring 1, central spherical rollers 6 are arranged in the crossed spherical roller tracks 5 in a crossed manner, a circle of spherical roller tracks 17 are respectively arranged at the two ends of the crossed spherical roller tracks 5 at intervals, the spherical roller tracks 17 form an angle of 10 degrees with the vertical axis of the bearing, spherical rollers 18 are respectively arranged in the spherical roller tracks 17,
the middle parts of the outer circumferences of the two double-half inner ferrules 3 are respectively provided with a circle of reverse spherical roller track 17-1, the curvature radius of the reverse spherical roller track 17-1 is larger than the radius of the bearing roller circumferential track, the outer ends of the reverse spherical roller tracks 17-1 are respectively provided with a spherical roller outer retaining shoulder 19, after the two double-half inner ferrules 3 are coaxially combined, the axial section of the reverse spherical roller track 17-1 respectively arranged at the middle part of the outer circumference is in a reverse spherical roller track structure, the end heads of the outer circumferences of the inner ends of the two double-half inner ferrules 3 are respectively provided with a crossed elliptical spherical roller track 5, the two double-half inner ferrules 3 are respectively combined with a middle spherical roller 6 arranged in the crossed elliptical spherical roller track 5 at the middle part of the inner circumference of the outer ferrule 1 and spherical rollers 18 arranged at two ends through the crossed elliptical spherical roller track 5 arranged at the end head of the outer circumference of the inner end, forming a heavy-load high-speed rail bearing with spherical rollers in crossed elliptical spherical roller tracks.
example 6:
A heavy duty high speed railway bearing with ball-in-cross rollers as shown in fig. 6, comprising: an inner ring 2, two double-half outer rings 4, one circle of central spherical roller 6 and two circles of spherical rollers 18: a circle of crossed elliptical spherical roller tracks 5 are arranged in the middle of the outer circumference of the inner ferrule 2, central spherical rollers 6 are arranged in the crossed spherical roller tracks 5 in a crossed manner, a circle of spherical roller tracks 17 are respectively arranged at the two ends of the crossed spherical roller tracks 5 at intervals, the spherical roller tracks 17 form an angle of 10 degrees with the vertical axis of the bearing, spherical rollers 18 are respectively arranged in the spherical roller tracks 17,
the outer sections of the inner circumferences of the two double-half outer rings 4 are respectively provided with a circle of elliptical spherical roller track 20, the curvature radius of the elliptical spherical roller track 20 is larger than the radius of the bearing roller circumferential track, after the two double-half outer rings 4 are coaxially combined, the axial section of the elliptical spherical roller tracks 20 respectively arranged at the inner and outer sections of the inner circumference of the double-half outer ring 4 is in an elliptical structure, the end heads of the inner circumference of the inner ends of the two double-half outer rings 4 are respectively provided with a cross elliptical spherical roller track 5, the elliptical spherical roller tracks 20 respectively arranged at the inner and outer sections of the inner circumference of the inner ends of the two double-half outer rings 4 are respectively combined with the central spherical roller 6 arranged in the cross elliptical spherical roller track 5 in the middle of the outer circumference of the inner ring 2 and the spherical rollers 18 arranged at the two ends of the inner circumference of the inner ring, and the heavy-load high-speed rail bearing with the spherical rollers arranged in the cross.
Example 7:
A heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 7, comprising: an outer ring 1, two double-half inner rings 3, a circle of middle-placed cylindrical rollers 8 and two circles of cylindrical rollers 12: a circle of crossed cylindrical roller tracks 7 are arranged in the middle of the inner circumference of the outer ring 1, centrally-mounted cylindrical rollers 8 are arranged in the crossed cylindrical roller tracks 7 in a crossed manner, a circle of cylindrical roller tracks 11 are respectively arranged at intervals at two ends of the crossed centrally-mounted cylindrical roller tracks 7, cylindrical rollers 12 are respectively arranged in the cylindrical roller tracks 11,
the middle parts of the outer circumferences of the two double-half inner ring 3 are respectively provided with a circle of cylindrical roller track 11, the outer ends of the cylindrical roller tracks 11 of the two double-half inner ring 3 are respectively provided with a cylindrical roller outer retaining shoulder 13, the inner ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller inner retaining shoulder 14, the ends of the outer circumferences of the inner ends of the two double-half inner ring 3 are respectively provided with a cross cylindrical roller track 7, the two double-half inner ring 3 is respectively combined with a middle cylindrical roller 8 arranged in the cross cylindrical roller track 7 in the middle of the inner circumference of the outer ring 1 and cylindrical rollers 12 arranged at two ends through the cross cylindrical roller track 7 arranged at the outer circumferential end of the inner end and the cylindrical roller track 11 arranged in the middle of the outer circumference, and a heavy-load high-speed iron bearing with the.
Example 8:
a heavy-duty high-speed railway bearing with ball-in-cross rollers as shown in fig. 8, comprising: an inner ring 2, two double-half outer rings 4, a circle of middle-placed cylindrical rollers 8 and two circles of cylindrical rollers 12: a circle of crossed cylindrical roller tracks 7 are arranged in the middle of the outer circumference of the inner ferrule 2, centrally-mounted cylindrical rollers 8 are arranged in the crossed cylindrical roller tracks 7 in a crossed manner, a circle of cylindrical roller tracks 11 are respectively arranged at intervals at two ends of the crossed cylindrical roller tracks 7, cylindrical rollers 12 are respectively arranged in the cylindrical roller tracks 11,
the middle parts of the inner circumferences of the two double-half outer races 4 are respectively provided with a circle of cylindrical roller track 11, the outer ends of the cylindrical roller tracks 11 of the inner circumferences of the two double-half outer races 4 are respectively provided with a cylindrical roller outer retaining shoulder 13, the inner ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller inner retaining shoulder 14, the ends of the inner circumferences of the inner ends of the two double-half outer races 4 are respectively provided with a crossed cylindrical roller track 7, the two double-half outer races 4 are respectively combined with a middle cylindrical roller 8 arranged in the crossed cylindrical roller track 7 in the middle of the outer circumference of the inner race 2 and cylindrical rollers 12 arranged at two ends through the crossed cylindrical roller track 7 arranged at the inner end inner circumference end and the cylindrical roller track 11 arranged in the middle of the inner circumference, and a heavy-load high-speed iron bearing with.
Example 9:
a heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 9, comprising: an outer ring 1, two double-half inner rings 3, a circle of middle-placed tapered rollers 10 and two circles of cylindrical rollers 12: a circle of crossed tapered roller tracks 9 are arranged in the middle of the inner circumference of the outer ring 1, middle tapered rollers 10 are arranged in the crossed tapered roller tracks 9 in a crossed mode, a circle of cylindrical roller tracks 11 are respectively arranged at intervals at two ends of each crossed tapered roller track 9, cylindrical rollers 12 are respectively arranged in the cylindrical roller tracks,
The middle parts of the outer circumferences of the two double-half inner ring rings 3 are respectively provided with a circle of cylindrical roller track 11, the outer ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller outer retaining shoulder 13, the inner ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller inner retaining shoulder 14, the ends of the outer circumferences of the inner ends of the two double-half inner ring rings 3 are respectively provided with a cross tapered roller track 9, and the two double-half inner ring rings 3 are respectively combined with a middle tapered roller 10 arranged in the cross tapered roller track 9 in the middle of the inner circumference of the outer ring 1 and cylindrical rollers 12 arranged at two ends through a cross tapered roller track 7 arranged at the end of the outer circumference of the inner end and a cylindrical roller track 11 arranged in the middle of the outer circumference to form a heavy-load high-speed rail bearing.
Example 10:
A heavy duty high speed railway bearing with cross roller center ball set as shown in fig. 10, comprising: an inner ring 2, two double-half outer rings 4, a circle of middle-placed tapered rollers 10 and two circles of cylindrical rollers 11: a circle of crossed tapered roller tracks 9 is arranged in the middle of the outer circumference of the inner ferrule 2, middle tapered rollers 10 are arranged in the crossed tapered roller tracks 9 in a crossed manner, a circle of cylindrical roller tracks 11 are respectively arranged at intervals at two ends of the crossed tapered roller tracks 9, cylindrical rollers 12 are respectively arranged in the cylindrical roller tracks,
the middle parts of the inner circumferences of the two double-half outer rings 4 are respectively provided with a circle of cylindrical roller track 11, the outer ends of the cylindrical roller tracks 11 of the two double-half outer rings 4 are respectively provided with a cylindrical roller outer retaining shoulder 13, the inner ends of the cylindrical roller tracks 11 are respectively provided with a cylindrical roller inner retaining shoulder 14, the ends of the inner circumferences of the inner ends of the two double-half outer rings 4 are respectively provided with a cross tapered roller track 9, the two double-half outer rings 4 are respectively combined with a cross tapered roller track 9 arranged at the inner end inner circumference end, a cylindrical roller track 11 arranged at the middle part of the inner circumference, a cross tapered roller 10 arranged in the middle part of the outer circumference of the inner ring 2 and cylindrical rollers 12 arranged at two ends to form a heavy-load high-iron bearing with the cross tapered rollers in the tapered roller tracks.
Claims (10)
1. A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer ring, two half inner ring, put spherical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the inner circumference of the outer race, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of cylindrical roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the double-half inner ring is respectively provided with a circle of cylindrical roller track in the middle of the outer circumference of the two double-half inner ring rings, the outer end of the cylindrical roller track is respectively provided with a cylindrical roller outer retaining shoulder, the inner end of the cylindrical roller track is respectively provided with a cylindrical roller inner retaining shoulder, the end heads of the outer circumferences of the inner ends of the two double-half inner ring rings are respectively provided with a crossed elliptical spherical roller track, the two double-half inner ring rings are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track in the middle of the inner circumference of the outer ring and cylindrical rollers arranged at two ends through the crossed elliptical spherical roller track arranged at the end head of the outer circumference of the inner end and the cylindrical roller track arranged in the middle of the outer circumference of the outer ring.
2. a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put spherical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the outer circumference of the inner ferrule, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of cylindrical roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the double-half outer races are respectively provided with a circle of cylindrical roller track at the middle part of the inner circumference of the double-half outer races, the outer ends of the cylindrical roller tracks are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the inner circumferences of the inner ends of the double-half outer races are respectively provided with crossed elliptical spherical roller tracks, and the two double-half outer races are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track at the middle part of the outer circumference of the inner race and cylindrical rollers arranged at two ends through the crossed elliptical spherical roller tracks arranged at the inner ends of the inner circumferences and the cylindrical roller tracks arranged at the middle part of the outer circumference of the inner race to form a heavy-load high-.
3. a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer race, two half inner race, put spherical roller and two rings of ring roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the inner circumference of the outer ring, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of circular roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, circular rollers are respectively arranged in the circular roller tracks,
The outer sections of the outer circumferences of the two double-half inner ferrules are respectively provided with a circle of circular ring roller track, the ends of the outer circumferences of the inner ends of the two double-half inner ferrules are respectively provided with a crossed elliptical spherical roller track, the two double-half inner ferrules are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track in the middle of the inner circumference of the outer ferrule and circular ring rollers arranged at two ends of the outer circumference through the crossed elliptical spherical roller track arranged at the end of the outer circumference of the inner end and the circular ring roller track arranged at the outer circumference, and the heavy-load high-speed rail bearing with the spherical rollers arranged in the crossed elliptical spherical roller track is formed.
4. A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put spherical roller and two rings of ring roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller track is arranged in the middle of the axial distance of the outer circumference of the inner ferrule, a middle spherical roller is arranged in the crossed elliptical spherical roller track in a crossed manner, a circle of circular roller track is respectively arranged at the two ends of the crossed elliptical spherical roller track at intervals, circular rollers are respectively arranged in the circular roller tracks,
the outer sections of the inner circumferences of the two double-half outer races are respectively provided with a circle of circular ring roller track, the ends of the inner circumferences of the inner ends of the two double-half outer races are respectively provided with a crossed elliptical spherical roller track, the two double-half outer races are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track in the middle of the outer circumference of the inner race and circular ring rollers arranged at two ends through the crossed elliptical spherical roller track arranged at the end of the inner circumference of the inner end and the circular ring roller track arranged at the outer section of the inner circumference, and a heavy-load high-speed rail bearing with the spherical rollers arranged in the crossed elliptical spherical roller track is formed.
5. a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer race, two half inner race, put spherical roller and two rings of spherical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller tracks are arranged in the middle of the inner circumference of the outer race, a middle spherical roller is arranged in the crossed spherical roller tracks in a crossed manner, a circle of spherical roller tracks are respectively arranged at the two ends of the crossed spherical roller tracks at intervals, the spherical roller tracks and the vertical axis of the bearing form an angle of 1-20 degrees, spherical rollers are respectively arranged in the spherical roller tracks,
the middle parts of the outer circumferences of the two double-half inner ferrules are respectively provided with a circle of reverse spherical roller track, the curvature radius of the reverse spherical roller track is larger than the radius of the circumferential track of the bearing roller, and the outer ends of the reverse spherical roller tracks are respectively provided with a spherical roller outer retaining shoulder, after the two double-half inner ferrules are coaxially combined, the axial sections of the reverse spherical roller tracks respectively arranged at the middle parts of the outer circumferences of the two tracks are in a reverse spherical roller track structure, the end heads of the outer circumferences of the inner ends of the two double-half inner ferrules are respectively provided with a crossed elliptical spherical roller track, the two double-half inner ferrules are respectively combined with a middle spherical roller arranged in a crossed elliptical spherical roller track in the middle of the inner circumference of the outer ferrule and spherical rollers arranged at two ends through the crossed elliptical spherical roller track arranged at the end heads of the outer circumferences of the inner ends and a reverse spherical roller track arranged in the middle of the outer circumference, so that the heavy-load high-speed rail bearing with the spherical rollers arranged in the middle of the crossed elliptical spherical roller track is formed.
6. a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put spherical roller and two rings of spherical roller in the round: the method is characterized in that: a circle of crossed elliptical spherical roller tracks are arranged in the middle of the outer circumference of the inner ferrule, a middle spherical roller is arranged in the crossed elliptical spherical roller tracks in a crossed manner, a circle of spherical roller tracks are respectively arranged at the two ends of the crossed elliptical spherical roller tracks at intervals, the spherical roller tracks and the vertical axis of the bearing form an angle of 1-20 degrees, spherical rollers are respectively arranged in the spherical roller tracks,
the outer sections of the inner circumferences of the two double-half outer races are respectively provided with a circle of elliptical spherical roller track, the curvature radius of the elliptical spherical roller track is larger than the radius of the bearing roller circumferential track, after the two double-half outer races are combined with the same axle center, the axial sections of the elliptical spherical roller tracks respectively arranged on the inner circumference outer sections are in an elliptical structure, the ends of the inner circumferences of the inner ends of the two double-half outer races are respectively provided with crossed elliptical spherical roller tracks, the two double-half outer races are respectively combined with a middle spherical roller arranged in the crossed elliptical spherical roller track arranged in the middle of the outer circumference of the inner race and a spherical roller arranged at two ends through the crossed elliptical spherical roller track arranged on the inner circumference inner end and the elliptical spherical roller track arranged on the inner circumference outer section, and the heavy-load high-iron bearing with the spherical roller arranged in the.
7. A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer ring, two half inner ring, put cylindrical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed cylindrical roller tracks are arranged in the middle of the inner circumference of the outer ring, centrally-mounted cylindrical rollers are arranged in the crossed cylindrical roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed cylindrical roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
The middle parts of the outer circumferences of the two double-half inner ring rings are respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks of the two double-half inner ring rings are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the outer circumferences of the inner ends of the two double-half inner ring rings are respectively provided with a cross-shaped cylindrical roller track, the two double-half inner ring rings are respectively combined with a middle cylindrical roller arranged in the cross-shaped cylindrical roller track at the middle part of the inner circumference of the outer ring and cylindrical rollers arranged at two ends of the outer circumference of the outer ring through the cross-shaped cylindrical roller track arranged at the outer circumferential end of the inner end and the cylindrical roller track arranged at the middle.
8. A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, put cylindrical roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed cylindrical roller tracks are arranged in the middle of the outer circumference of the inner ferrule, a middle cylindrical roller is arranged in the crossed cylindrical roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed cylindrical roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the bearing is characterized in that the middle parts of the inner circumferences of the two double-half outer races are respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks of the inner circumferences of the two double-half outer races are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the inner circumferences of the inner ends of the two double-half outer races are respectively provided with a crossed cylindrical roller track, the two double-half outer races are respectively combined with a middle cylindrical roller arranged in the crossed cylindrical roller track at the middle part of the outer circumference of the inner race and cylindrical rollers arranged at two ends of the crossed cylindrical roller track, and a heavy-load high-speed rail bearing with the cylindrical rollers in the crossed cylindrical roller tracks is formed.
9. A heavy-duty high-speed rail bearing with cross roller center balls, comprising: an outer ring, two half inner ring, put tapered roller and two rings of cylindrical roller in the round: the method is characterized in that: a circle of crossed tapered roller tracks are arranged in the middle of the inner circumference of the outer ring, a middle tapered roller is arranged in the crossed tapered roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed tapered roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
The heavy-load high-speed railway bearing is characterized in that the middle parts of the outer circumferences of the two double-half inner rings are respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks of the two double-half outer rings are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the outer circumferences of the inner ends of the two double-half inner rings are respectively provided with a crossed tapered roller track, the two double-half inner rings are respectively combined with a middle tapered roller arranged in the crossed tapered roller track in the middle of the inner circumference of the outer ring and cylindrical rollers arranged at two ends of the outer circumference of the outer ring through the crossed tapered roller track arranged at the outer circumferential end of the inner end and the cylindrical roller track arranged in.
10. a heavy-duty high-speed rail bearing with cross roller center balls, comprising: an inner race, two half outer races, a circle of middle-placed tapered roller and two circles of cylindrical rollers: the method is characterized in that: a circle of crossed tapered roller tracks are arranged in the middle of the outer circumference of the inner ferrule, tapered rollers are arranged in the crossed tapered roller tracks in a crossed manner, a circle of cylindrical roller tracks are respectively arranged at the two ends of the crossed tapered roller tracks at intervals, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the heavy-load high-speed railway bearing is characterized in that the middle parts of the inner circumferences of the two double-half outer races are respectively provided with a circle of cylindrical roller track, the outer ends of the cylindrical roller tracks of the two double-half outer races are respectively provided with a cylindrical roller outer retaining shoulder, the inner ends of the cylindrical roller tracks are respectively provided with a cylindrical roller inner retaining shoulder, the ends of the inner circumferences of the inner ends of the two double-half outer races are respectively provided with a crossed tapered roller track, the two double-half outer races are respectively combined with a middle tapered roller arranged in the crossed tapered roller track at the middle part of the outer circumference of the inner race and cylindrical rollers arranged at two ends of the cross tapered roller track at the middle part of the outer circumference of the inner race through the crossed tapered roller track at the inner ends, and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516440.0U CN209761996U (en) | 2019-04-17 | 2019-04-17 | heavy-load high-speed rail bearing provided with crossed rollers and balls arranged in crossed rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516440.0U CN209761996U (en) | 2019-04-17 | 2019-04-17 | heavy-load high-speed rail bearing provided with crossed rollers and balls arranged in crossed rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761996U true CN209761996U (en) | 2019-12-10 |
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ID=68759478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920516440.0U Active CN209761996U (en) | 2019-04-17 | 2019-04-17 | heavy-load high-speed rail bearing provided with crossed rollers and balls arranged in crossed rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209761996U (en) |
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2019
- 2019-04-17 CN CN201920516440.0U patent/CN209761996U/en active Active
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