CN111894973A - Double-row tapered roller bearing with copper retainer structure - Google Patents
Double-row tapered roller bearing with copper retainer structure Download PDFInfo
- Publication number
- CN111894973A CN111894973A CN202010795711.8A CN202010795711A CN111894973A CN 111894973 A CN111894973 A CN 111894973A CN 202010795711 A CN202010795711 A CN 202010795711A CN 111894973 A CN111894973 A CN 111894973A
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- row
- retainer
- outer ring
- double
- raceway
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 27
- 239000010949 copper Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/34—Rollers; Needles
- F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
- F16C33/366—Tapered rollers, i.e. rollers generally shaped as truncated cones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/56—Selection of substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
Abstract
The invention mainly relates to a double-row tapered roller bearing with a copper retainer structure. Two rows of tapered rollers have different sizes and different contact angles. Row a occupies most of the space within the bearing, with larger sized rollers, and a larger contact angle. The bearing uses a copper retainer made of a vehicle, two rows of retainers are different in shape, and the row A is guided by the inner ring and the outer ring together. The turntable bearing of the invention occupies small space, the conical roller can bear various loads, the copper retainer has high dimensional precision and good guide, and the invention can be suitable for occasions with large load and high rotating speed.
Description
Technical Field
The invention belongs to the technical field of bearings, and mainly relates to a double-row tapered roller bearing with a copper retainer structure, which is mainly applied to a rotary turntable of petroleum machinery.
Background
The turntable bearing is widely used on large-scale and super-large-scale equipment; for example, patent CN 102003458A introduces a CT machine turntable bearing, patent CN103062224B introduces a wind power turntable bearing, patent CN 101699085 introduces a turntable bearing of a large celestial body observation device, patent CN 109322909a introduces a turntable bearing for supporting an aviation radar base, and the common point of the above turntable bearings is that rolling bodies in the bearings are all steel balls; the common point of the slewing bearings disclosed in patents CN 208534980U, CN104632883, CN109253162A, CN104196879A, etc. is that the rolling elements in the bearings are all cylindrical rollers; in addition, the structure of sphere-column combination, cross column and the like is also provided, which is not listed; the steel balls or the cylindrical rollers are used as rolling bodies, the cylindrical rollers can bear larger load but have lower rotating speed than the steel ball type turntable bearing, and the steel ball type turntable bearing has higher rotating speed but lower bearing.
In the field of general radial double-row tapered roller bearings, patent CN 208534979U discloses a double-row tapered roller bearing capable of bearing unbalanced load, which uses a row of rollers with small diameter and large length and a row of rollers with large diameter and small length, and mainly solves the problem of radial force unbalance loading; patent number CN 202628805U discloses a double-row tapered roller bearing for an automobile hub, an outer ring is provided with a stop flange to realize axial accurate positioning, and patent CN202579666U is also the same structure; although two rows of rollers with different sizes are adopted in the double-row tapered roller bearing, the double-row tapered roller bearing is mainly applied to the radial rotation occasions, a traditional radial bearing method is used in the bearing design and manufacturing stages, a retainer in the bearing is a stamped steel plate or a support column for welding, and the whole size of the bearing is smaller; and cannot be directly used for large turntable bearings.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide a double-row tapered roller bearing with a copper retainer structure.
The invention adopts the following technical scheme to realize the purpose:
a double-row tapered roller bearing with a copper retainer structure is provided with a double-raceway outer ring; the double-raceway outer ring is provided with an A-row outer ring raceway and a B-row outer ring raceway; the contact angle of the A-row outer ring racewayα A Not less than 30 degrees, and the contact angle of the B row outer ring roller pathα B The length of the outer ring raceway of the line A is less than or equal to 10 degrees, and the length of the outer ring raceway of the line A is greater than that of the outer ring raceway of the line B, so that the outer ring raceway of the line A can bear the gravity, the axial force and the overturning moment of equipment; the B row outer ring raceway bears a small axial force in the opposite direction; the double-raceway outer ring is provided with two inner rings matched with the double-raceway outer ring: inner rings of the A row and inner rings of the B row; the diameter of the inner ring of the row A is larger than that of the inner ring of the row B; an A-row retainer for placing A-row tapered rollers is arranged between the A-row inner ring and the corresponding double-raceway outer ring; a B-row retainer for placing B-row tapered rollers is arranged between the B-row inner ring and the corresponding double-raceway outer ring; the diameter, length and width of the tapered rollers in the A row are all larger than those of the tapered rollers in the B row, namely DwA＞DwB、LA＞LB、BA＞BB(ii) a The small ends of the A-row tapered rollers and the B-row tapered rollers are opposite, and the large ends are outward; the taper angle of the tapered rollers in the A row is not less than 2 degrees, and the taper angle of the tapered rollers in the B row is not more than 1 degree.
The height C of the double-raceway outer ring is smaller than the total height T of the bearing; and a plurality of matched bolt holes are uniformly distributed on the bottom end surface of the double-raceway outer ring.
The A-row retainer is a lathed copper workpiece; the A-row retainer is provided with horizontal parts positioned on the A-row inner ring and the B-row inner ring, and two ends of each horizontal part are respectively provided with inclined parts bent towards one side of the A-row inner ring; one end of the inclined part is integrated with the horizontal part, the other end of the inclined part is bent and then horizontally arranged, and an end head of the inclined part is provided with an end surface bulge protruding towards one side of the upper end surface of the outer ring; the horizontal part and the inclined parts positioned at the two ends of the horizontal part form an S-shaped A-row retainer together, one end of the A-row retainer is guided by the end surface of the outer ring, and the other end of the A-row retainer is guided by the flanges of the inner ring of the A-row; the retainer of the row A is provided with a pocket hole beam positioned in the middle of the roller; the inclination angle of the A-row retainer is the same as the angle of the A-row tapered rollers between the inner and outer ring raceways.
The retainer of the row A is provided with pockets which are uniformly distributed along the circumference, and the inner surfaces of the pockets are straight surfaces without any radian; be provided with the recess that is used for chisel seal lock roller between two adjacent pockets, the recess edge is less than 5mm apart from the pocket edge.
The B-row retainer is a copper machined part by turning; the B-row retainer is provided with horizontal parts positioned on the inner rings of the A row and the B row, and two ends of each horizontal part are respectively provided with inclined parts bent towards one side of the inner ring of the B row; one end of the inclined part is integrated with the horizontal part, the other end of the inclined part is vertically arranged, the horizontal part and the inclined parts positioned at two ends of the horizontal part form a bowl-shaped B-row retainer together, and the B-row retainer is provided with a pocket beam positioned in the middle of the roller; the inclination angle of the B-row retainer is the same as the angle of the B-row tapered rollers between the inner and outer ring raceways.
The B-row retainer is provided with pockets which are uniformly distributed along the circumference, and the inner surfaces of the pockets are straight surfaces without any radian; be provided with the recess that is used for chisel seal lock roller between two adjacent pockets, the recess edge is less than 5mm apart from the pocket edge.
The distance clearance between the A-row retainer and the B-row retainer in the bearing is more than or equal to 5mm, so that the two rows of retainers are prevented from contacting with each other in the bearing operation.
The inner rings of the row A and the inner rings of the row B are both provided with a large flange and a small flange; the large flange is provided with a bevel edge used for guiding the retainer; the A-row tapered rollers and the B-row tapered rollers are distributed between the corresponding large flanges and the corresponding small flanges.
The diameter of the inner circle of the row A is larger than that of the inner circle of the row B, namely dA＞dB。
The double-row tapered roller bearing with the copper retainer structure is different from a conventional steel ball or cylindrical roller turntable bearing, and two rows of tapered rollers with different sizes and different contact angles are used as rolling bodies; the specially designed and machined copper cage has higher dimensional accuracy than a conventional steel stamped cage, allowing the bearing to operate at higher speeds. Unlike conventional bearings in which the cage is guided individually by either the inner or outer ring, the row a cage is guided together by both the inner and outer ring.
Drawings
Fig. 1 is a double row tapered roller bearing of the present invention.
Fig. 2 is a detailed schematic diagram of column a of the present invention.
Fig. 3 is a row a cage of the present invention.
FIG. 4 is an A row cage, roller, inner race assembly of the present invention.
Fig. 5 is a detailed schematic diagram of column B of the present invention.
Fig. 6 is a schematic representation of the cage of the present invention prior to chiseling.
Fig. 7 is a schematic representation of the cage of the present invention after chiseling.
In the figure: 1. the roller comprises a double-row raceway outer ring, 2 rows of retainer, 3 rows of tapered rollers, 4 rows of inner rings, 5 rows of inner rings and B rows of inner rings; 6. tapered rollers in row B, and cages in row B and 7. C-the height of the double-row outer ring, T-the overall height of the bearing,α A row A outer ring raceway contact angle,α B row B outer ring raceway contact angle, DwARow A tapered roller diameter, DwBTapered roller diameter of row B, LARow A tapered roller length, LBTapered roller length of row B, BAColumn A inner circle height, dAInner diameter of inner circle of column A, BBInner circle width of column B, dB-B rows inner ring inner diameter, -double row cage gap.
Detailed Description
The invention is described with reference to the accompanying drawings.
As shown in figure 1, the double-row tapered roller bearing comprises a double-row raceway outer ring 1 and a double-row raceway outer ring AThe roller cage comprises a row cage 2, a row A tapered rollers 3, a row A inner ring 4, a row B inner ring 5, a row B tapered rollers 6 and a row B cage 7. And no intermediate space ring is arranged between the inner ring 4 of the row A and the inner ring 5 of the row B. The height C of the outer ring 1 of the double-row raceway is smaller than the integral height T of the bearing; a plurality of bolt holes 1a are uniformly distributed on the end face of the double-row raceway outer ring 1 on one side of the row B. A clearance which is more than or equal to 5mm exists between the retainer 2 in the row A and the retainer 7 in the row B. The two retainers are prevented from contacting in the bearing operation process. Diameter d of the inner ring due to the size of the mounting shaftA＞dB。
A. And the two rows B form a double-row tapered roller bearing. The tapered rollers 3 in the row A are larger than the tapered rollers 6 in the row B in size, the small ends of the tapered rollers in the row A are opposite, and the large ends of the tapered rollers in the row A, B are outward. The taper angle of the tapered rollers in the A row is not less than 2 degrees, and the taper angle of the tapered rollers in the B row is not more than 1 degree. And the A row outer ring raceway is a larger contact angle, and the B row outer ring raceway is a smaller contact angle. Therefore, the two rows of raceways of the double-row raceway outer ring are different, the length of the raceway in the row A is larger than that of the raceway in the row B, and the height of the inner ring 4 in the row A is larger than that of the inner ring 5 in the row B. So there is a relationship:
through the arrangement, more space of the bearing is distributed to the row A, so that the row A is provided with the large-contact-angle and large-size tapered rollers and can bear large load and overturning moment, and the row B is provided with the small-contact-angle and small-size tapered rollers and only bears small load in the opposite direction. During operation, the bearing is horizontally placed, the line B is located below, the bolt holes 1a are connected with equipment, the line A is located above, and the line A mainly bears the gravity, the axial load and the overturning moment of the equipment.
As shown in fig. 2, the tapered rollers 3 in row a are positioned between the outer ring raceway 1b and the raceway 4a of the inner ring 4 in row a, and are mounted in pockets of the cage 2 in row a. The inclined angle of the A-row retainer is the same as the angle of the tapered roller between the inner and outer ring raceways, namely theta in the figure1=θAThe retainer pocket beam 2c is positioned in the middle of the tapered roller 3. The A-row retainer is similar to an S shape, wherein the surface of the end part bulge 2a and the surface of the outer ring 1c, the surface of the top part 2b and the large flange 3 of the inner ringand small gaps are respectively arranged on the surface a, the surface 2d at the bottom and the surface 3b of the small flange of the inner ring, and the gap amount is 0.2-1 mm. Plays a role of guiding the retainer. While the 2a face may limit the axial movement of the cage. The large flange of the inner ring 3 needs to be processed with an inclined surface 3a to be matched with the retainer.
As shown in fig. 3, the a-row cage 2 is a turned copper work, unlike a conventional stamped steel cage for a tapered roller bearing, and ensures accuracy of each surface dimension. A plurality of pockets 2e are uniformly distributed on the circumference of the retainer 2 in the row A, tool withdrawal grooves 2f are formed in four corners of each pocket, and the inner surfaces of the pockets are flat surfaces without any radian. The outer surface between the two pockets 2e is processed with a groove 2g of a certain depth. The depth of the groove is 2-5 mm, and the groove is used for chiseling and printing the locking roller. The distance between the edge of the groove 2g and the edge of the pocket is less than 5 mm; the outer surface of the beam of the retainer is provided with a groove, after the inner ring and the roller are assembled, chiseling is carried out on two sides of the groove to lock the roller, so that the inner ring, the roller and the retainer form an inseparable assembly; therefore, the shape of the cage pocket can be set to be a straight pocket, and the processing difficulty of the pocket is reduced. The guide surface of the outer ring end surface also prevents axial movement of the cage.
As shown in fig. 4, after the tapered rollers 3 of the a-row are fitted into the pockets 2e and the inner rings 4 of the a-row, a chisel mark 2h is formed by striking with a tool shaped like a straight line, such as a screwdriver, thereby locking the rollers. Thereby constituting a tapered roller, inner ring and cage assembly. In the links of assembly, transportation and the like, the bearing is not scattered.
As shown in fig. 5, the B-row tapered rollers 3 are located between the outer ring raceway 1d and the B-row inner ring raceway 5a, and are mounted in pockets of the B-row cage 7. The inclination angle of the B-row retainer is the same as the angle of the tapered roller between the inner and outer ring raceways, namely theta in the figure2=θBThe retainer pocket beam 7b is positioned in the middle of the tapered roller 6. And small gaps are respectively arranged on the surface of the mixed inclined plane 7a at the bottom of the B-row retainer and the surface of the large flange ring 5B of the inner ring, and the surface of the top 7c of the B-row retainer and the surface of the small flange ring 5d of the inner ring, and the gap amount is 0.2-1 mm. Plays a role of guiding the retainer. The large flange of the inner ring 3 needs to be processed with an inclined surface 5c to be matched with the retainer.
The B-row retainer 7 is also a lathed copper workpiece. Except the appearance is different from the A row, a plurality of pockets are uniformly distributed on the circumference, tool withdrawal grooves are arranged at four corners of each pocket, and the inner surfaces of the pockets are flat surfaces without any radian. The outer surface between two pockets processes the recess of certain degree of depth. The depth of the groove is 2-5 mm, and the groove is used for chiseling and printing the locking roller.
A. The schematic diagram of the B-row retainer chiseling is shown in fig. 6 and 7.
A. The copper retainer of the B row has high processing precision and reasonable guide arrangement, and the copper material is suitable for high-speed bearings. The rotating speed of the turntable bearing of the petroleum machinery of the embodiment is 350r/min, the rated dynamic load of the A-row bearing is 1400KN, the rated static load is 3800KN, and the operation is good.
The details of which are not described in the prior art.
Claims (9)
1. A double-row tapered roller bearing with a copper retainer structure is provided with a double-raceway outer ring; the method is characterized in that: the double-raceway outer ring is provided with an A-row outer ring raceway and a B-row outer ring raceway; the contact angle of the A-row outer ring racewayα A Not less than 30 degrees, and the contact angle of the B row outer ring roller pathα B The length of the outer ring raceway of the line A is less than or equal to 10 degrees, and the length of the outer ring raceway of the line A is greater than that of the outer ring raceway of the line B, so that the outer ring raceway of the line A can bear the gravity, the axial force and the overturning moment of equipment; the B row outer ring raceway bears a small axial force in the opposite direction; the double-raceway outer ring is provided with two inner rings matched with the double-raceway outer ring: inner rings of the A row and inner rings of the B row; the diameter of the inner ring of the row A is larger than that of the inner ring of the row B; an A-row retainer for placing A-row tapered rollers is arranged between the A-row inner ring and the corresponding double-raceway outer ring; a B-row retainer for placing B-row tapered rollers is arranged between the B-row inner ring and the corresponding double-raceway outer ring; the diameter, length and width of the tapered rollers in the A row are all larger than those of the tapered rollers in the B row, namely DwA＞DwB、LA＞LB、BA＞BB(ii) a The small ends of the A-row tapered rollers and the B-row tapered rollers are opposite, and the large ends are outward; the taper angle of the tapered rollers in the A row is not less than 2 degrees, and the taper angle of the tapered rollers in the B row is not more than 1 degree.
2. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the height C of the double-raceway outer ring is smaller than the total height T of the bearing; and a plurality of matched bolt holes are uniformly distributed on the bottom end surface of the double-raceway outer ring.
3. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the A-row retainer is a lathed copper workpiece; the A-row retainer is provided with horizontal parts positioned on the A-row inner ring and the B-row inner ring, and two ends of each horizontal part are respectively provided with inclined parts bent towards one side of the A-row inner ring; one end of the inclined part is integrated with the horizontal part, the other end of the inclined part is bent and then horizontally arranged, and an end head of the inclined part is provided with an end surface bulge protruding towards one side of the upper end surface of the outer ring; the horizontal part and the inclined parts positioned at the two ends of the horizontal part form an S-shaped A-row retainer together, one end of the A-row retainer is guided by the end surface of the outer ring, and the other end of the A-row retainer is guided by the flanges of the inner ring of the A-row; the retainer of the row A is provided with a pocket hole beam positioned in the middle of the roller; the inclination angle of the A-row retainer is the same as the angle of the A-row tapered rollers between the inner and outer ring raceways.
4. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the retainer of the row A is provided with pockets which are uniformly distributed along the circumference, and the inner surfaces of the pockets are straight surfaces without any radian; be provided with the recess that is used for chisel seal lock roller between two adjacent pockets, the recess edge is less than 5mm apart from the pocket edge.
5. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the B-row retainer is a copper machined part by turning; the B-row retainer is provided with horizontal parts positioned on the inner rings of the A row and the B row, and two ends of each horizontal part are respectively provided with inclined parts bent towards one side of the inner ring of the B row; one end of the inclined part is integrated with the horizontal part, the other end of the inclined part is vertically arranged, the horizontal part and the inclined parts positioned at two ends of the horizontal part form a bowl-shaped B-row retainer together, and the B-row retainer is provided with a pocket beam positioned in the middle of the roller; the inclination angle of the B-row retainer is the same as the angle of the B-row tapered rollers between the inner and outer ring raceways.
6. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the B-row retainer is provided with pockets which are uniformly distributed along the circumference, and the inner surfaces of the pockets are straight surfaces without any radian; be provided with the recess that is used for chisel seal lock roller between two adjacent pockets, the recess edge is less than 5mm apart from the pocket edge.
7. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the distance clearance between the A-row retainer and the B-row retainer in the bearing is more than or equal to 5mm, so that the two rows of retainers are prevented from contacting with each other in the bearing operation.
8. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the inner rings of the row A and the inner rings of the row B are both provided with a large flange and a small flange; the large flange is provided with a bevel edge used for guiding the retainer; the A-row tapered rollers and the B-row tapered rollers are distributed between the corresponding large flanges and the corresponding small flanges.
9. The double-row tapered roller bearing of a copper cage structure according to claim 1, wherein: the diameter of the inner circle of the row A is larger than that of the inner circle of the row B, namely dA＞dB。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010795711.8A CN111894973A (en) | 2020-08-10 | 2020-08-10 | Double-row tapered roller bearing with copper retainer structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010795711.8A CN111894973A (en) | 2020-08-10 | 2020-08-10 | Double-row tapered roller bearing with copper retainer structure |
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| Publication Number | Publication Date |
|---|---|
| CN111894973A true CN111894973A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010795711.8A Pending CN111894973A (en) | 2020-08-10 | 2020-08-10 | Double-row tapered roller bearing with copper retainer structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431853A (en) * | 2020-12-04 | 2021-03-02 | 洛阳新强联回转支承股份有限公司 | Super-huge tapered roller bearing without expanding and contracting basket-shaped retainer |
| CN112443572A (en) * | 2020-12-04 | 2021-03-05 | 洛阳新强联回转支承股份有限公司 | Super-huge tapered roller turntable bearing with detachable small flange |
| CN112443573A (en) * | 2020-12-04 | 2021-03-05 | 洛阳新强联回转支承股份有限公司 | Three-row cylindrical roller variable pitch bearing with wind generating set independently variable pitch |
| CN113062926A (en) * | 2021-03-17 | 2021-07-02 | 西北工业大学 | Double-split needle bearing retainer for small aviation piston engine |
| CN117006165A (en) * | 2023-08-08 | 2023-11-07 | 依必艾传动系统(上海)有限公司 | Layered array arrangement method for tapered rollers of hub bearing |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3477773A (en) * | 1968-01-23 | 1969-11-11 | John A Altson | Molded cage for nonseparable assembly of roller bearings |
| CN2607465Y (en) * | 2003-04-02 | 2004-03-24 | 洛阳轴承集团有限公司 | Double-row reducing conic rolling bearing |
| CN200985952Y (en) * | 2006-12-05 | 2007-12-05 | 瓦房店东旭非标准轴承集团有限公司 | Straight flange type impulse force aligning roller bearing |
| EP1965088A2 (en) * | 2007-02-28 | 2008-09-03 | JTEKT Corporation | Tapered roller bearing |
| CN101586615A (en) * | 2008-05-19 | 2009-11-25 | 瓦房店第一轧机轴承制造有限公司 | Double-row different-roller tapered roller bearing |
| JP2012163217A (en) * | 2012-06-06 | 2012-08-30 | Nsk Ltd | Tapered roller bearing |
| WO2013028284A1 (en) * | 2011-08-19 | 2013-02-28 | The Timken Company | Bearing cage for a roller bearing assembly |
| CN103453011A (en) * | 2012-05-31 | 2013-12-18 | 西门子公司 | Tapered roller bearing arrangement for a direct drive generator of a wind turbine |
| CN204403137U (en) * | 2014-12-30 | 2015-06-17 | 瓦房店轴承集团有限责任公司 | A kind of large megawatt rolling element bootstrap retainer double-row conical bearing |
| CN106369047A (en) * | 2016-12-09 | 2017-02-01 | 瓦房店轴承集团有限责任公司 | Conical roller bearing of novel structure copper retainer |
| CN106895078A (en) * | 2015-12-17 | 2017-06-27 | 恩特恩-斯恩尔轴承公司 | For the lubrication rolling bearing of root of blade |
| CN106979232A (en) * | 2016-01-18 | 2017-07-25 | 株式会社捷太格特 | Roller bearing |
| DE102016211144A1 (en) * | 2016-06-22 | 2017-12-28 | Schaeffler Technologies AG & Co. KG | Double row tapered roller bearing, as well as including the same realized bearing arrangement, in particular for a pinion head |
| CN107559312A (en) * | 2016-06-30 | 2018-01-09 | 株式会社捷太格特 | Taper roll bearing |
| CN107975537A (en) * | 2017-12-28 | 2018-05-01 | 瓦房店轴承集团有限责任公司 | It can bear the double-row conical bearing of lack of balance load |
| DE102017126917A1 (en) * | 2016-11-17 | 2018-05-17 | Jtekt Corporation | Tapered roller bearings |
| CN110030273A (en) * | 2017-12-26 | 2019-07-19 | 株式会社捷太格特 | Tapered roller bearing |
| CN210265532U (en) * | 2019-05-21 | 2020-04-07 | 人本集团有限公司 | Tapered roller bearing |
-
2020
- 2020-08-10 CN CN202010795711.8A patent/CN111894973A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3477773A (en) * | 1968-01-23 | 1969-11-11 | John A Altson | Molded cage for nonseparable assembly of roller bearings |
| CN2607465Y (en) * | 2003-04-02 | 2004-03-24 | 洛阳轴承集团有限公司 | Double-row reducing conic rolling bearing |
| CN200985952Y (en) * | 2006-12-05 | 2007-12-05 | 瓦房店东旭非标准轴承集团有限公司 | Straight flange type impulse force aligning roller bearing |
| EP1965088A2 (en) * | 2007-02-28 | 2008-09-03 | JTEKT Corporation | Tapered roller bearing |
| CN101586615A (en) * | 2008-05-19 | 2009-11-25 | 瓦房店第一轧机轴承制造有限公司 | Double-row different-roller tapered roller bearing |
| WO2013028284A1 (en) * | 2011-08-19 | 2013-02-28 | The Timken Company | Bearing cage for a roller bearing assembly |
| CN103453011A (en) * | 2012-05-31 | 2013-12-18 | 西门子公司 | Tapered roller bearing arrangement for a direct drive generator of a wind turbine |
| JP5397505B2 (en) * | 2012-06-06 | 2014-01-22 | 日本精工株式会社 | Tapered roller bearing |
| JP2012163217A (en) * | 2012-06-06 | 2012-08-30 | Nsk Ltd | Tapered roller bearing |
| CN204403137U (en) * | 2014-12-30 | 2015-06-17 | 瓦房店轴承集团有限责任公司 | A kind of large megawatt rolling element bootstrap retainer double-row conical bearing |
| CN106895078A (en) * | 2015-12-17 | 2017-06-27 | 恩特恩-斯恩尔轴承公司 | For the lubrication rolling bearing of root of blade |
| CN106979232A (en) * | 2016-01-18 | 2017-07-25 | 株式会社捷太格特 | Roller bearing |
| DE102016211144A1 (en) * | 2016-06-22 | 2017-12-28 | Schaeffler Technologies AG & Co. KG | Double row tapered roller bearing, as well as including the same realized bearing arrangement, in particular for a pinion head |
| CN107559312A (en) * | 2016-06-30 | 2018-01-09 | 株式会社捷太格特 | Taper roll bearing |
| DE102017126917A1 (en) * | 2016-11-17 | 2018-05-17 | Jtekt Corporation | Tapered roller bearings |
| CN108087428A (en) * | 2016-11-17 | 2018-05-29 | 株式会社捷太格特 | Taper roll bearing |
| CN106369047A (en) * | 2016-12-09 | 2017-02-01 | 瓦房店轴承集团有限责任公司 | Conical roller bearing of novel structure copper retainer |
| CN110030273A (en) * | 2017-12-26 | 2019-07-19 | 株式会社捷太格特 | Tapered roller bearing |
| CN107975537A (en) * | 2017-12-28 | 2018-05-01 | 瓦房店轴承集团有限责任公司 | It can bear the double-row conical bearing of lack of balance load |
| CN210265532U (en) * | 2019-05-21 | 2020-04-07 | 人本集团有限公司 | Tapered roller bearing |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431853A (en) * | 2020-12-04 | 2021-03-02 | 洛阳新强联回转支承股份有限公司 | Super-huge tapered roller bearing without expanding and contracting basket-shaped retainer |
| CN112443572A (en) * | 2020-12-04 | 2021-03-05 | 洛阳新强联回转支承股份有限公司 | Super-huge tapered roller turntable bearing with detachable small flange |
| CN112443573A (en) * | 2020-12-04 | 2021-03-05 | 洛阳新强联回转支承股份有限公司 | Three-row cylindrical roller variable pitch bearing with wind generating set independently variable pitch |
| CN113062926A (en) * | 2021-03-17 | 2021-07-02 | 西北工业大学 | Double-split needle bearing retainer for small aviation piston engine |
| CN113062926B (en) * | 2021-03-17 | 2022-09-02 | 西北工业大学 | Double-split needle bearing retainer for small aviation piston engine |
| CN117006165A (en) * | 2023-08-08 | 2023-11-07 | 依必艾传动系统(上海)有限公司 | Layered array arrangement method for tapered rollers of hub bearing |
| CN117006165B (en) * | 2023-08-08 | 2024-03-12 | 依必艾传动系统(上海)有限公司 | Layered array arrangement method for tapered rollers of hub bearing |
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Application publication date: 20201106 |