CN210371639U - High-speed heavy-load low-friction high-speed railway bearing provided with double-row roller embedded balls - Google Patents
High-speed heavy-load low-friction high-speed railway bearing provided with double-row roller embedded balls Download PDFInfo
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- CN210371639U CN210371639U CN201920770507.3U CN201920770507U CN210371639U CN 210371639 U CN210371639 U CN 210371639U CN 201920770507 U CN201920770507 U CN 201920770507U CN 210371639 U CN210371639 U CN 210371639U
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Abstract
The utility model relates to a high-speed railway bearing. Set up the high-speed heavy load low friction high-speed railway bearing of biserial roller center-placed ball, including an outer lasso, two half inner race rings, two rings biserial spherical roller and two rings ring roller: the double-row spherical roller is combined with the spherical roller and the circular roller arranged on the inner circumference of the outer ferrule through the spherical roller track arranged on the outer circumference of the outer ferrule, the double-row spherical roller is set to be a central ball and the circular roller with complementary advantages, and the bearing has the effects of high precision, high rigidity, high bearing capacity, high speed, low friction and long service life.
Description
Technical Field
The utility model relates to a high-speed railway bearing.
Background
Firstly, at present: the main roller of the high-speed rail bearing manufactured in developed countries in the world is a double-section tapered roller, and research data show that: the mechanical structure of the bearing mainly comprising the double-section tapered roller 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 a high-speed rail runs linearly for a long time without a large axial load, the tapered roller still derives a constant axial force according to the roller contact angle, and the generated friction resistance and friction heating are always imposed on the bearing, which is how unreasonable, and various hazards such as unnecessary increase of the friction resistance and friction heating of the bearing, oblique sliding of the roller and the like are directly caused.
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,
secondly, the known: the crossed roller bearing has the mechanical properties of high combined bearing capacity, high precision and high rigidity, but: since the contact angle of the crossed roller bearing is fixed to a 45-degree cross, the crossed roller bearing has the advantage of strong combined load, but the increase of the contact angle also causes the defect of increased frictional resistance,
disclosure of Invention
In view of the technical insufficiency of the double-section tapered roller high-speed railway bearing, the utility model discloses according to the characteristics that toroidal roller, spherical roller, cylindrical roller bearing capacity is big, frictional resistance is little and toroidal roller, spherical roller have the aligning function, can both evenly distribute pressure in roller each department when any moment operating mode, a high-speed heavy load low friction high-speed railway bearing who sets up double-row roller embedded ball is proposed, set up double-row roller slewing bearing's mechanical structure between double-section cylindrical roller, double-section toroidal roller, double-row spherical roller, form the mechanical structure of double-row roller embedded ball, because double-row roller slewing bearing's contact angle has the adjustability, consequently effectual regulation and control can be implemented to double-row roller slewing bearing's frictional resistance, the utility model discloses utilize double-row roller bearing to be embedded ball to with double-section cylindrical roller, double-section toroidal roller, The complementary integrated bearing that forms of two sections spherical roller advantages can make the bearing possess high accuracy, high rigidity, high bearing capacity, high speed, long-life effect, the utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: one outer race, two half inner race, two rings of spherical roller and two rings of ring roller: the outer ring is provided with two circles of double-row spherical roller tracks in the middle of the inner circumferential axial distance, spherical rollers are respectively arranged in the double-row spherical roller tracks, the contact angle between the spherical roller and the double-row spherical roller tracks is 10-45 degrees, a circle of circular roller tracks are respectively arranged at the two ends of the double-row spherical roller tracks at intervals, circular rollers are respectively arranged in the circular roller tracks,
the two double-half inner ferrules are provided with a circle of circular roller track at the outer section of the outer circumference respectively, spherical roller tracks are arranged at the ends of the outer circumference inner ends of the two double-half inner ferrules respectively, spherical roller outer retaining shoulders are arranged at the outer ends of the spherical roller raceways respectively, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are combined with two circles of spherical rollers arranged in the two circles of double-row spherical roller tracks in the middle of the inner circumference of the outer ferrule and circular rollers arranged in the circular roller tracks at the two ends respectively through the spherical roller tracks arranged at the end of the outer circumference inner end and the circular roller tracks arranged at the outer circumference outer section to form a circular roller high-speed heavy-load low-friction high-iron bearing provided with a double-row.
Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: an outer lasso, two half inner lassos, two rings of spherical roller and two rings of cylindrical roller: the outer ring is provided with two circles of double-row spherical roller tracks in the middle of the inner circumferential axial distance, spherical rollers are respectively arranged in the double-row spherical roller tracks, the contact angle between the spherical roller and the double-row spherical roller tracks is 10-45 degrees, a circle of cylindrical roller tracks are respectively arranged at the two ends of the double-row spherical 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 ferrules are respectively provided with a circle of cylindrical roller track, 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 outer circumferential inner ends of the two double-half inner ferrules are respectively provided with a spherical roller track, the outer end of the spherical roller raceway is provided with a spherical roller outer retaining shoulder, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are respectively combined with two circles of spherical rollers arranged in the two circles of double-row spherical roller tracks in the middle of the inner circumference of the outer ferrule and cylindrical rollers arranged in the two circles of double-row spherical roller tracks in the middle of the outer circumference of the outer ferrule through a spherical roller track arranged at the inner end of the outer circumference and a cylindrical roller track arranged in the middle of the outer circumference, so that the cylindrical roller high-speed heavy-load low-friction high-speed.
Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: one outer race, two half inner race, two rings of tapered roller and two rings of ring roller: the middle part of the inner circumferential axial distance of the outer ring is provided with two circles of double-row tapered roller tracks, tapered rollers are respectively arranged in the double-row tapered roller tracks, the contact angle between the tapered roller and the double-row tapered roller tracks is 10-45 degrees, a circle of circular roller tracks are respectively arranged at the two ends of the double-row tapered roller tracks at intervals, circular rollers are respectively arranged in the circular roller tracks,
the two double-half inner rings are respectively provided with a circle of circular roller track at the outer section of the outer circumference, the ends at the inner ends of the outer circumferences of the two double-half inner rings are respectively provided with a tapered roller track, the outer ends of the tapered roller raceways are provided with tapered roller outer retaining shoulders, the two double-half inner rings are coaxially arranged on the inner circumference of the outer ring, and the two double-half inner rings are respectively combined with two circles of tapered rollers arranged in the two circles of double-row tapered roller tracks in the middle of the inner circumference of the outer ring and circular rollers arranged in the circular roller tracks at the two ends through the tapered roller track arranged at the inner end of the outer circumference and the circular roller track arranged at the outer section of the outer circumference, so that the circular roller high-speed heavy-load low-friction high-iron bearing provided.
Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: one outer race, two half inner race, two rings of tapered roller and two rings of cylindrical roller: the middle part of the inner circumferential axial distance of the outer ring is provided with two circles of double-row tapered roller tracks, tapered rollers are respectively arranged in the double-row tapered roller tracks, the contact angle between the tapered roller and the double-row tapered roller tracks is 10 degrees to 45 degrees, a circle of cylindrical roller tracks are respectively arranged at the interval distance of two ends of the double-row tapered roller tracks, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the middle parts of the outer circumferences of the two double-half inner ferrules are respectively provided with a circle of cylindrical roller track, 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 end heads of the outer circumferential inner ends of the two double-half inner ferrules are respectively provided with a tapered roller track, the outer end of the tapered roller raceway is provided with a tapered roller outer retaining shoulder, the two double-half inner ring is coaxially arranged on the inner circumference of the outer ring, and the two double-half inner ring is respectively combined with two rings of tapered rollers arranged in the two rings of double-row tapered roller tracks in the middle of the inner circumference of the outer ring and cylindrical rollers arranged in the two rings of double-row tapered roller tracks in the middle of the outer circumference through a tapered roller track arranged at the inner end of the outer circumference and a cylindrical roller track arranged in the middle of the outer circumference, so that the cylindrical roller high-speed heavy-load low-friction high-iron bearing with the double.
Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: an outer ferrule, two double-half inner ferrules, two circles of spherical rolling bodies and two circles of ring rollers, wherein the outer ferrule is provided with two circles of double-row angular contact spherical rolling body tracks in the middle of the axial distance of the inner circumference, the spherical rolling bodies are respectively arranged in the double-row angular contact spherical rolling body tracks, the contact angle between the spherical rolling bodies and the double-row angular contact spherical rolling body tracks is 10 degrees to 45 degrees, the two ends of the double-row angular contact spherical rolling body tracks are respectively provided with a circle of ring roller tracks at intervals, the ring rollers are respectively arranged in the ring roller tracks,
the two double-half inner ferrules are respectively provided with a circle of circular ring roller track at the outer section of the outer circumference, the ends of the inner ends of the outer circumferences of the two double-half inner ferrules are respectively provided with an angular contact spherical rolling element track, the outer ends of the angular contact spherical rolling element tracks are respectively provided with a spherical rolling element outer retaining shoulder, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are respectively combined with two circles of spherical rolling elements arranged in the middle of the inner circumference of the outer ferrule and circular ring rollers arranged in the circular ring roller tracks at the two ends through the angular contact spherical rolling element track arranged at the inner end of the outer circumference and the circular ring roller track arranged at the outer section of the outer circumference, so that the circular ring roller high-speed low-friction high-speed.
Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: an outer ring, two double-half inner rings, a circle of spherical rolling body and two circles of ring rollers, wherein the outer ring is provided with a circle of deep groove spherical rolling body track in the middle of the axial distance of the inner circumference, the spherical rolling body is arranged in the deep groove spherical rolling body track, the two ends of the deep groove spherical rolling body track are respectively provided with a circle of ring roller track at intervals, the ring rollers are respectively arranged in the ring roller tracks,
the two double-half inner ferrules are respectively provided with a circle of circular ring roller track at the outer section of the outer circumference, the ends of the inner ends of the outer circumferences of the two double-half inner ferrules are respectively provided with an angular contact spherical rolling body track, the outer ends of the angular contact spherical rolling body tracks are respectively provided with a spherical rolling body outer retaining shoulder, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are respectively combined with a spherical rolling body arranged in a deep groove spherical rolling body track in the middle of the inner circumference of the outer ferrule and circular ring rollers arranged in circular ring roller tracks at two ends through the angular contact spherical rolling body track arranged at the inner end of the outer circumference and the circular ring roller tracks arranged at the outer section of the outer circumference to form a circular ring roller high-speed heavy-load.
The utility model has the advantages that: the utility model discloses according to the ring roller, the spherical roller, the cylindrical roller bearing capacity is big, frictional resistance is little and the ring roller, the spherical roller has the aligning function, can both be with pressure evenly distributed in the characteristic of roller each department when any moment operating mode, a high-speed heavy load low friction high-speed railway bearing who sets up biserial roller embedded ball is proposed, set up biserial roller slewing bearing's mechanical structure at biserial roller, biserial ring roller, between biserial spherical roller, form biserial roller embedded ball's mechanical structure, because biserial roller slewing bearing has the high accuracy with the cross roller bearing equally, high rigidity, the characteristic of high bearing capacity, but: the contact angle of the double row roller slewing bearing has a wide range of adjustability, so: the contact angle and the frictional resistance of the double-row roller slewing bearing can be effectively adjusted and controlled, the utility model utilizes the double-row roller bearing as a central ball and is complementary with the advantages of a double-section cylindrical roller, a double-section ring roller and a double-section spherical roller to form an integrated bearing, so that the bearing has the effects of high precision, high rigidity, high bearing capacity, high speed and long service life,
drawings
Fig. 1 is a cross-sectional view of the high-speed heavy-load low-friction high-speed rail bearing with double-row spherical rollers and balls.
Fig. 2 is a cross-sectional view of the high-speed heavy-load low-friction high-speed rail bearing with cylindrical rollers provided with balls arranged in the double-row spherical rollers.
Fig. 3 is a cross-sectional view of the high-speed heavy-load low-friction high-speed iron bearing with the double-row tapered rollers and the balls.
Fig. 4 is a cross-sectional view of the high-speed heavy-load low-friction high-speed iron bearing with cylindrical rollers provided with double-row tapered roller embedded balls.
Fig. 5 is a cross-sectional view of the high-speed heavy-load low-friction high-speed iron bearing with the double-angle contact ball rolling element and the ball-mounted in the double-angle contact ball rolling element of the utility model.
Fig. 6 is a cross-sectional view of the high-speed heavy-load low-friction high-speed rail bearing with a three-point contact ball rolling element and a ball placed in the ball rolling element.
In the figure: 1. outer race, 2, double-half inner race, 3, double row spherical roller track, 4, spherical roller, 5, spherical roller track, 6, tapered roller track, 7, circular roller track, 8, circular roller, 9, double row tapered roller track, 10, tapered roller, 11, spherical roller outer shoulder, 12, tapered roller outer shoulder, 13, cylindrical roller track, 14, cylindrical roller, 15, cylindrical roller outer shoulder, 15-1, cylindrical roller inner shoulder, 16, double row angular contact spherical rolling element track, 17, spherical rolling element outer shoulder, 18, deep groove spherical rolling element track, 19, angular contact spherical rolling element track, 20, spherical rolling element.
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:
the high-speed heavy-load low-friction high-speed iron bearing provided with the double-row roller middle balls as shown in figure 1 comprises: an outer ring 1, two double-half inner ring 2, two circles of spherical rollers 4 and two circles of ring rollers 8, wherein the middle part of the axial distance of the inner circumference of the outer ring 1 is provided with two circles of double-row spherical roller tracks 3, the spherical rollers 4 are respectively arranged in the double-row spherical roller tracks 3, the contact angle between the spherical rollers 4 and the double-row spherical roller tracks 3 is 25 degrees, the two ends of the double-row spherical roller tracks 3 are respectively provided with a circle of ring roller track 7 at intervals, the ring rollers 8 are respectively arranged in the ring roller tracks 7,
the double-half inner ring (2) is provided with a circle of ring roller track (7) at the outer section of the outer circumference, the ends of the inner ends of the outer circumferences of the double-half inner ring (2) are provided with spherical roller tracks (5), the outer ends of the spherical roller tracks (5) are provided with spherical roller outer retaining shoulders (11), the two double-half inner ring (2) are coaxially arranged on the inner circumference of the outer ring (1), and the two double-half inner ring (2) is combined with two circles of spherical rollers (4) arranged in the middle part of the two circles of double-row spherical roller tracks (3) in the outer circumference of the outer ring (1) and ring rollers (8) arranged in the two circles of double-row spherical roller tracks (7) respectively through the spherical roller tracks (5) arranged at the inner ends of the outer circumference and the ring roller tracks (7) arranged.
Example 2:
the high-speed heavy-load low-friction high-speed iron bearing with the double-row roller middle ball as shown in fig. 2 comprises: an outer ring 1, two double-half inner ring 2, two circles of spherical rollers 4 and two circles of cylindrical rollers 14, wherein the middle part of the axial distance of the inner circumference of the outer ring 1 is provided with two circles of double-row spherical roller tracks 3, the spherical rollers 4 are respectively arranged in the double-row spherical roller tracks 3, the contact angle between the spherical roller 4 and the double-row spherical roller tracks 3 is 25 degrees, the two ends of the double-row spherical roller tracks 3 are respectively provided with one circle of cylindrical roller track 13 at intervals, the cylindrical rollers 14 are respectively arranged in the cylindrical roller tracks 13,
the middle parts of the outer circumferences of the two double-half inner ferrules 2 are respectively provided with a circle of cylindrical roller track 13, the outer ends of the cylindrical roller tracks 13 are respectively provided with a cylindrical roller outer retaining shoulder 15, the inner ends of the cylindrical roller tracks 13 are respectively provided with a cylindrical roller inner retaining shoulder 15-1, the ends of the outer circumference inner ends of the two double-half inner ferrules 2 are respectively provided with a spherical roller track 5, the outer end of the spherical roller raceway 5 is provided with a spherical roller outer retaining shoulder 11, the two double-half inner ferrules 2 are coaxially arranged on the inner circumference of the outer ferrule 1, and the two double-half inner ferrules 2 are respectively combined with two circles of spherical rollers 4 arranged in the two circles of double-row spherical roller tracks 3 in the middle of the inner circumference of the outer ferrule 1 and cylindrical rollers 14 arranged in the cylindrical roller tracks 13 at two ends through a spherical roller track 5 arranged at the inner end of the outer circumference and a cylindrical roller track 13 arranged in the middle of the outer circumference to form the annular roller high-speed heavy-load low-friction high-speed iron bearing provided with the double-row spherical roller center balls.
Example 3:
the high-speed heavy-load low-friction high-speed iron bearing with the double-row roller middle ball as shown in fig. 3 comprises: an outer ring 1, two double-half inner ring 2, two rings of tapered rollers 10 and two rings of ring rollers 8, wherein the middle part of the axial distance of the inner circumference of the outer ring 1 is provided with two rings of double-row tapered roller tracks 9, the tapered rollers 10 are respectively arranged in the double-row tapered roller tracks 9, the contact angle between the tapered rollers 10 and the double-row tapered roller tracks 9 is 25 degrees, the two ends of the double-row tapered roller tracks 9 are respectively provided with a ring of ring roller tracks 7 at intervals, the ring rollers 8 are respectively arranged in the ring roller tracks 7,
the outer sections of the outer circumferences of the two double-half inner ring rings 2 are respectively provided with a circle of circular ring roller track 7, the ends of the outer circumferences of the two double-half inner ring rings 2 are respectively provided with a tapered roller track 6, the outer ends of the tapered roller raceways 6 are provided with tapered roller outer retaining shoulders 12, the two double-half inner ring rings 2 are coaxially arranged on the inner circumference of the outer ring 1, the two double-half inner ring rings 2 are respectively combined with two circles of tapered rollers 10 arranged in the middle of the two circles of double-row tapered roller tracks 9 in the outer circumference of the outer ring 1 and circular ring rollers 8 arranged in the circular ring roller tracks 7 at the two ends through the tapered roller track 6 arranged at the inner end of the outer circumference and the circular ring roller tracks 7 arranged at the outer circumference outer section, and a circular ring roller high-speed heavy.
Example 4:
the high-speed heavy-load low-friction high-speed iron bearing with the double-row roller middle ball as shown in fig. 4 comprises: an outer ring 1, two double-half inner rings 2, two rings of tapered rollers 10 and two rings of cylindrical rollers 14, wherein the middle part of the axial distance of the inner circumference of the outer ring 1 is provided with two rings of double-row tapered roller tracks 9, the tapered rollers 10 are respectively arranged in the double-row tapered roller tracks 9, the contact angle between the tapered rollers 10 and the double-row tapered roller tracks 9 is 25 degrees, the two ends of the double-row tapered roller tracks 9 are respectively provided with one ring of cylindrical roller tracks 13 at intervals, the cylindrical rollers 14 are respectively arranged in the cylindrical roller tracks 13,
the middle parts of the outer circumferences of the two double-half inner ferrules 2 are respectively provided with a circle of cylindrical roller track 13, the outer ends of the cylindrical roller tracks 13 are respectively provided with a cylindrical roller outer retaining shoulder 15, the inner ends of the cylindrical roller tracks 13 are respectively provided with a cylindrical roller inner retaining shoulder 15-1, the ends of the outer circumferential inner ends of the two double-half inner ferrules 2 are respectively provided with a tapered roller track 6, the outer end of the tapered roller raceway 6 is provided with a tapered roller outer retaining shoulder 12, the two double-half inner ring 2 are coaxially arranged on the inner circumference of the outer ring 1, and the two double-half inner ring 2 is respectively combined with two circles of tapered rollers 10 arranged in two circles of double-row tapered roller tracks 9 in the middle of the inner circumference of the outer ring 1 and cylindrical rollers 14 arranged in the cylindrical roller tracks 13 at two ends through a tapered roller track 6 arranged at the inner end of the outer circumference and a cylindrical roller track 13 arranged in the middle of the outer circumference to form a cylindrical roller high-speed heavy-load low-friction high-iron bearing provided with a double-row tapered roller embedded ball.
Example 5:
the high-speed heavy-load low-friction high-speed iron bearing with the double-row roller middle ball as shown in fig. 5 comprises: an outer ring 1, two double-half inner rings 2, two circles of spherical rolling elements 20 and two circles of ring rollers 8, wherein the outer ring 1 is provided with two circles of double-row angular contact spherical rolling element tracks 16 in the middle of the inner circumferential axial distance, the spherical rolling elements 20 are respectively arranged in the double-row angular contact spherical rolling element tracks 16, the contact angle between the spherical rolling elements 20 and the double-row spherical rolling element tracks 16 is 35 degrees, a circle of ring roller tracks 7 are respectively arranged at the interval distance of the two ends of the double-row angular contact spherical rolling element tracks 16, the ring rollers 8 are respectively arranged in the ring roller tracks 7,
the outer sections of the outer circumferences of the two double-half inner ferrules 2 are respectively provided with a circle of circular ring roller track 7, the ends of the inner ends of the outer circumferences of the two double-half inner ferrules 2 are respectively provided with an angular contact spherical rolling body track 19, the outer ends of the angular contact spherical rolling body tracks 19 are respectively provided with a spherical rolling body outer retaining shoulder 17, the two double-half inner ferrules 2 are coaxially arranged on the inner circumference of the outer ferrule 1, and the two double-half inner ferrules 2 are respectively combined with two circles of spherical rolling bodies 20 arranged in two circles of double-row angular contact spherical rolling body tracks 16 in the middle of the inner circumference of the outer ferrule 1 and circular ring rollers 8 arranged in the circular ring roller tracks 7 at the two ends through the angular contact spherical rolling body track 19 arranged at the inner end of the outer circumference and the circular ring roller track 7 arranged at the outer circumference outer section to form the high-speed.
Example 6:
the high-speed heavy-load low-friction high-speed iron bearing with the double-row roller middle ball as shown in fig. 6 comprises: an outer ring 1, two double-half inner rings 2, a circle of spherical rolling bodies 20 and two circles of ring rollers 8, wherein the outer ring 1 is provided with a circle of deep groove spherical rolling body track 18 in the middle of the axial distance of the inner circumference, the spherical rolling bodies 20 are arranged in the deep groove spherical rolling body track 18, a circle of ring roller track 7 is respectively arranged at the two ends of the deep groove spherical rolling body track 18 at intervals, the ring rollers 8 are respectively arranged in the ring roller track 7,
the outer sections of the outer circumferences of the two double-half inner ferrules 2 are respectively provided with a circle of circular ring roller track 7, the ends of the inner ends of the outer circumferences of the two double-half inner ferrules 2 are respectively provided with an angular contact spherical rolling body track 19, the outer ends of the angular contact spherical rolling body tracks 19 are respectively provided with a spherical rolling body outer retaining shoulder 17, the two double-half inner ferrules 2 are coaxially arranged on the inner circumference of the outer ferrule 1, the two double-half inner ferrules 2 are respectively combined with a spherical rolling body 20 arranged in a deep groove spherical rolling body track 18 in the middle of the inner circumference of the outer ferrule 1 and circular ring rollers 8 arranged in the circular ring roller tracks 7 at the two ends through the angular contact spherical rolling body track 19 arranged at the inner end of the outer circumference and the circular ring roller track 7 arranged at the outer circumference outer section, and a circular ring roller high-speed heavy-.
Claims (6)
1. Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: one outer race, two half inner race, two rings of spherical roller and two rings of ring roller: the method is characterized in that: the outer ring is provided with two circles of double-row spherical roller tracks in the middle of the inner circumferential axial distance, spherical rollers are respectively arranged in the double-row spherical roller tracks, the contact angle between the spherical roller and the double-row spherical roller tracks is 10-45 degrees, a circle of circular roller tracks are respectively arranged at the interval distance of the two ends of the double-row spherical roller tracks, circular rollers are respectively arranged in the circular roller tracks,
the two double-half inner ferrules are provided with a circle of circular roller track at the outer section of the outer circumference respectively, spherical roller tracks are arranged at the ends of the outer circumference inner ends of the two double-half inner ferrules respectively, spherical roller outer retaining shoulders are arranged at the outer ends of the spherical roller raceways respectively, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are combined with two circles of spherical rollers arranged in the two circles of double-row spherical roller tracks in the middle of the inner circumference of the outer ferrule and circular rollers arranged in the circular roller tracks at the two ends respectively through the spherical roller tracks arranged at the end of the outer circumference inner end and the circular roller tracks arranged at the outer circumference outer section to form a circular roller high-speed heavy-load low-friction high-iron bearing provided with a double-row.
2. Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: an outer lasso, two half inner lassos, two rings of spherical roller and two rings of cylindrical roller: the method is characterized in that: the outer ring is provided with two circles of double-row spherical roller tracks in the middle of the inner circumferential axial distance, spherical rollers are respectively arranged in the double-row spherical roller tracks, the contact angle between the spherical roller and the double-row spherical roller tracks is 10-45 degrees, a circle of cylindrical roller tracks are respectively arranged at the two ends of the double-row spherical 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 ferrules are respectively provided with a circle of cylindrical roller track, 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 outer circumferential inner ends of the two double-half inner ferrules are respectively provided with a spherical roller track, the outer end of the spherical roller raceway is provided with a spherical roller outer retaining shoulder, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are respectively combined with two circles of spherical rollers arranged in the two circles of double-row spherical roller tracks in the middle of the inner circumference of the outer ferrule and cylindrical rollers arranged in the two circles of double-row spherical roller tracks in the middle of the outer circumference of the outer ferrule through a spherical roller track arranged at the inner end of the outer circumference and a cylindrical roller track arranged in the middle of the outer circumference, so that the cylindrical roller high-speed heavy-load low-friction high-speed.
3. Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: one outer race, two half inner race, two rings of tapered roller and two rings of ring roller: the method is characterized in that: the middle part of the inner circumferential axial distance of the outer ring is provided with two circles of double-row tapered roller tracks, tapered rollers are respectively arranged in the double-row tapered roller tracks, the contact angle between the tapered roller and the double-row tapered roller tracks is 10-45 degrees, a circle of circular roller tracks are respectively arranged at the two ends of the double-row tapered roller tracks at intervals, circular rollers are respectively arranged in the circular roller tracks,
the two double-half inner rings are respectively provided with a circle of circular roller track at the outer section of the outer circumference, the ends at the inner ends of the outer circumferences of the two double-half inner rings are respectively provided with a tapered roller track, the outer ends of the tapered roller raceways are provided with tapered roller outer retaining shoulders, the two double-half inner rings are coaxially arranged on the inner circumference of the outer ring, and the two double-half inner rings are respectively combined with two circles of tapered rollers arranged in the two circles of double-row tapered roller tracks in the middle of the inner circumference of the outer ring and circular rollers arranged in the circular roller tracks at the two ends through the tapered roller track arranged at the inner end of the outer circumference and the circular roller track arranged at the outer section of the outer circumference, so that the circular roller high-speed heavy-load low-friction high-iron bearing provided.
4. Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: one outer race, two half inner race, two rings of tapered roller and two rings of cylindrical roller: the method is characterized in that: the middle part of the inner circumferential axial distance of the outer ring is provided with two circles of double-row tapered roller tracks, tapered rollers are respectively arranged in the double-row tapered roller tracks, the contact angle between the tapered roller and the double-row tapered roller tracks is 10 degrees to 45 degrees, a circle of cylindrical roller tracks are respectively arranged at the interval distance of two ends of the double-row tapered roller tracks, cylindrical rollers are respectively arranged in the cylindrical roller tracks,
the middle parts of the outer circumferences of the two double-half inner ferrules are respectively provided with a circle of cylindrical roller track, 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 end heads of the outer circumferential inner ends of the two double-half inner ferrules are respectively provided with a tapered roller track, the outer end of the tapered roller raceway is provided with a tapered roller outer retaining shoulder, the two double-half inner ring is coaxially arranged on the inner circumference of the outer ring, and the two double-half inner ring is respectively combined with two rings of tapered rollers arranged in the two rings of double-row tapered roller tracks in the middle of the inner circumference of the outer ring and cylindrical rollers arranged in the two rings of double-row tapered roller tracks in the middle of the outer circumference through a tapered roller track arranged at the inner end of the outer circumference and a cylindrical roller track arranged in the middle of the outer circumference, so that the cylindrical roller high-speed heavy-load low-friction high-iron bearing with the double.
5. Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: an outer lasso, two half inner ring, two rings of spherical rolling elements and two rings of ring roller, characterized by: the middle part of the inner circumferential axial distance of the outer ring is provided with two circles of double-row angular contact spherical rolling element tracks, spherical rolling elements are respectively arranged in the double-row angular contact spherical rolling element tracks, the contact angle between the spherical rolling elements and the double-row angular contact spherical rolling element tracks is 10 degrees to 45 degrees, a circle of circular roller tracks are respectively arranged at the two ends of the double-row angular contact spherical rolling element tracks at intervals, circular rollers are respectively arranged in the circular roller tracks,
the two double-half inner ferrules are respectively provided with a circle of circular ring roller track at the outer section of the outer circumference, the ends of the inner ends of the outer circumferences of the two double-half inner ferrules are respectively provided with an angular contact spherical rolling element track, the outer ends of the angular contact spherical rolling element tracks are respectively provided with a spherical rolling element outer retaining shoulder, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are respectively combined with two circles of spherical rolling elements arranged in the middle of the inner circumference of the outer ferrule and circular ring rollers arranged in the circular ring roller tracks at the two ends through the angular contact spherical rolling element track arranged at the inner end of the outer circumference and the circular ring roller track arranged at the outer section of the outer circumference, so that the circular ring roller high-speed low-friction high-speed.
6. Set up high-speed heavy load low friction high-speed railway bearing of putting ball in double-row roller, include: an outer lasso, two half inner ring wares, the spherical rolling element of a round and two rings of ring roller, characterized by: the middle part of the inner circumferential axial distance of the outer ring is provided with a circle of deep groove spherical rolling body track, spherical rolling bodies are arranged in the deep groove spherical rolling body track, a circle of circular roller track is respectively arranged at the interval distance of the two ends of the deep groove spherical rolling body track, circular rollers are respectively arranged in the circular roller track,
the two double-half inner ferrules are respectively provided with a circle of circular ring roller track at the outer section of the outer circumference, the ends of the inner ends of the outer circumferences of the two double-half inner ferrules are respectively provided with an angular contact spherical rolling body track, the outer ends of the angular contact spherical rolling body tracks are respectively provided with a spherical rolling body outer retaining shoulder, the two double-half inner ferrules are coaxially arranged on the inner circumference of the outer ferrule, and the two double-half inner ferrules are respectively combined with a spherical rolling body arranged in a deep groove spherical rolling body track in the middle of the inner circumference of the outer ferrule and circular ring rollers arranged in circular ring roller tracks at two ends through the angular contact spherical rolling body track arranged at the inner end of the outer circumference and the circular ring roller tracks arranged at the outer section of the outer circumference to form a circular ring roller high-speed heavy-load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770507.3U CN210371639U (en) | 2019-05-29 | 2019-05-29 | High-speed heavy-load low-friction high-speed railway bearing provided with double-row roller embedded balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770507.3U CN210371639U (en) | 2019-05-29 | 2019-05-29 | High-speed heavy-load low-friction high-speed railway bearing provided with double-row roller embedded balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210371639U true CN210371639U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920770507.3U Active CN210371639U (en) | 2019-05-29 | 2019-05-29 | High-speed heavy-load low-friction high-speed railway bearing provided with double-row roller embedded balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210371639U (en) |
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2019
- 2019-05-29 CN CN201920770507.3U patent/CN210371639U/en active Active
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