CN210799730U - Slewing bearing - Google Patents
Slewing bearing Download PDFInfo
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- CN210799730U CN210799730U CN201920612725.4U CN201920612725U CN210799730U CN 210799730 U CN210799730 U CN 210799730U CN 201920612725 U CN201920612725 U CN 201920612725U CN 210799730 U CN210799730 U CN 210799730U
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- groove
- slewing bearing
- outer ring
- inner ring
- cover plate
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Abstract
The utility model discloses a slewing bearing belongs to mechanical technical field. The utility model discloses a. The utility model discloses a slewing bearing is equipped with three raceways altogether, and three raceways of group can mutually support with ball and the roller wherein of packing into, greatly increased the utility model discloses slewing bearing's fault-tolerant rate, even there is small deviation in the machining precision of a certain department, the unstable problem of operation also is difficult to appear to, three raceways of group's common operation dispersible each group raceway and the power that ball and roller wherein received of packing into, this makes the utility model discloses a slewing bearing is when the operation, and raceway, ball and roller are difficult wearing and tearing, and the life-span is longer.
Description
Technical Field
The utility model relates to a slewing bearing belongs to mechanical technical field.
Background
Slewing bearings, are known as: the "joint" of machine is an important transmission component necessary for the machinery which needs to make relative rotary motion between two bodies and simultaneously must bear axial force, radial force and tilting moment. With the rapid development of the mechanical industry, the slewing bearing is widely applied to the industries of ship equipment, engineering machinery, light industry machinery, metallurgical machinery, medical machinery, industrial machinery and the like.
The existing slewing bearing mainly comprises two types, namely a point contact rolling type slewing bearing and a surface contact rolling type slewing bearing. The point contact rolling type slewing bearing mainly comprises an inner ring, an outer ring and balls positioned in raceways of the inner ring and the outer ring, and has the advantages of smooth rolling during operation, relatively small friction force and relatively long service life.
The surface contact rolling type slewing bearing mainly comprises an inner ring, an outer ring and a roller positioned in a raceway of the inner ring and the outer ring, has the advantages of large contact surface and uniform bearing force, but has larger friction during operation, easy abrasion of the roller and shorter service life, and particularly when being applied to large-scale machinery, the slewing bearing needs to be replaced frequently, so the operation cost of the large-scale machinery is undoubtedly greatly increased.
Therefore, there is a need to design a slewing bearing which has low requirement on machining precision, is easy to assemble and is not easy to wear during operation so as to solve the problems of the conventional slewing bearing.
SUMMERY OF THE UTILITY MODEL
[ problem ] to
The to-be-solved technical problem of the utility model is to provide a slewing bearing that is low, the assembly is simple and difficult wearing and tearing when moving to the machining precision requirement.
[ solution ]
In order to solve the above problems, the present invention provides a slewing bearing, which comprises an inner ring, an outer ring, a first groove, a second groove, a third groove, a fourth groove, a fifth groove, a sixth groove, a ball, a first roller and a second roller;
the inner ring is centrosymmetric, is in a hollow cylinder shape and comprises a first top surface, a first bottom surface, a first inner side surface and a first outer side surface; one end, close to the first top surface, of the first outer side surface of the inner ring extends towards the direction back to the axis of the inner ring to form a circle of first bulges;
the outer ring is centrosymmetric, is in a hollow cylinder shape and comprises a second top surface, a second bottom surface, a second inner side surface and a second outer side surface; one end, close to the second bottom surface, of the second inner side surface of the outer ring extends towards the direction facing the axis of the outer ring to form a circle of second protrusions;
the inner ring and the outer ring are coaxial, and the inner ring and the outer ring are jointed to form three joint surfaces which are a first joint surface, a second joint surface and a third joint surface respectively;
the first groove, the second groove and the third groove are embedded in the inner ring, the opening of the first groove faces the first joint face, the opening of the second groove faces the second joint face, and the opening of the third groove faces the third joint face;
the fourth groove, the fifth groove and the sixth groove are embedded in the outer ring, an opening of the fourth groove faces the first joint face, an opening of the fifth groove faces the second joint face, and an opening of the sixth groove faces the third joint face;
the first groove is opposite to the fourth groove, the second groove is opposite to the fifth groove, and the third groove is opposite to the sixth groove;
the ball is positioned in a slide way formed by the first groove and the fourth groove; the first roller is positioned in a slideway formed by the second groove and the fifth groove; the second roller is positioned in a slideway formed by the third groove and the sixth groove.
In one embodiment of the present invention, the pivoting support includes a cover plate.
In one embodiment of the present invention, the cover plate is a hollow disc shape, and includes a third top surface, a third bottom surface, a third inner side surface, and a third outer side surface.
In one embodiment of the present invention, the slewing bearing is an inner ring gear shaping; the cover plate is located above the inner ring and the outer ring, and the position, facing the balls, of the third bottom surface of the cover plate extends towards the balls to be capable of contacting with the balls.
In one embodiment of the present invention, the slewing bearing is an outer ring gear; the second top surface part of the outer ring is recessed towards the second bottom surface to form a circle of L-shaped grooves with openings back to the second bottom surface and back to the second outer side surface; the cover plate is positioned above the inner ring and in the L-shaped groove of the outer ring; the position of the third bottom surface of the cover plate, which is opposite to the ball, extends towards the ball to be capable of contacting with the ball.
In one embodiment of the invention, the pivoting support comprises a peg.
In one embodiment of the present invention, the slewing bearing is an inner ring gear shaping; the cover plate is anchored on the outer ring through the studs, the studs are partially arranged in the outer ring, and the studs are partially arranged in the cover plate.
In one embodiment of the present invention, the slewing bearing is an outer ring gear; the cover plate is anchored to the inner ring through the studs, and the studs are partially arranged in the inner ring and partially arranged in the cover plate.
In one embodiment of the present invention, the slewing bearing comprises a grease nipple for greasing the ball, the first roller and the second roller.
In one embodiment of the present invention, the slewing bearing is an inner ring gear shaping; the oil nozzle is arranged on the second outer side surface of the outer ring.
In one embodiment of the present invention, the slewing bearing is an outer ring gear; the oil nozzle is arranged on the first inner side face of the inner ring.
[ advantageous effects ]
(1) The utility model discloses a slewing bearing is equipped with three group's raceways altogether, and three group's raceways can mutually support with ball and the roller of packing into wherein, greatly increased the utility model discloses slewing bearing's fault-tolerant rate, even there is small deviation in the machining precision of a certain department, the unstable problem of operation is difficult for appearing yet, and, three group's raceways operate jointly and can disperse each group's raceway and pack into the power that ball and roller wherein received, this makes the utility model discloses a slewing bearing is in operation, and raceway, ball and roller are difficult wearing and tearing, and the life-span is longer;
(2) the slewing bearing of the utility model can be assembled simply by placing the inner ring into the outer ring, placing the balls into the raceway and anchoring the cover plate;
(3) the utility model discloses an inner circle, outer lane are hollow circular cylinder, and the shaping is once rolled by the roughcast to the integral forging of accessible, consequently, the utility model discloses an inner circle, outer lane preparation are simple relatively, have more the advantage when the preparation.
Drawings
Fig. 1 is a front view schematically illustrating a pivoting support according to an embodiment of the present invention.
Fig. 2 is a plan view of an embodiment of the slewing bearing of the present invention.
Fig. 3 is a front view schematically illustrating a structure of one embodiment of the slewing bearing according to the present invention.
Fig. 4 is a plan view of an embodiment of the slewing bearing of the present invention.
Wherein, 1 is an inner ring, 2 is an outer ring, 3 is a first groove, 4 is a second groove, 5 is a third groove, 6 is a fourth groove, 7 is a fifth groove, 8 is a sixth groove, 9 is a ball, 10 is a first roller, 11 is a second roller, 12 is a first top surface, 13 is a first bottom surface, 14 is a first inner side surface, 15 is a first outer side surface, 16 is a first protrusion, 17 is a second top surface, 18 is a second bottom surface, 19 is a second inner side surface, 20 is a second outer side surface, 21 is a second protrusion, 22 is a first joint surface, 23 is a second joint surface, 24 is a third joint surface, 25 is a cover plate, 26 is a third top surface, 27 is a third bottom surface, 28 is a third inner side surface, 29 is a third outer side surface, 30 is an "L" shaped groove, 31 is a stud and 32 is a grease nipple.
Detailed Description
In order to achieve the above objects, features and advantages of the present invention and to make the same more comprehensible, the present invention is described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the slewing bearing of the present invention includes an inner ring 1, an outer ring 2, a first groove 3, a second groove 4, a third groove 5, a fourth groove 6, a fifth groove 7, a sixth groove 8, a ball 9, a first roller 10, and a second roller 11;
the inner ring 1 is centrosymmetric and hollow cylindrical, and comprises a first top surface 12, a first bottom surface 13, a first inner side surface 14 and a first outer side surface 15; one end of the first outer side surface 15 of the inner ring 1, which is close to the first top surface 12, extends towards the direction back to the axis of the inner ring 1 to form a circle of first bulges 16;
the outer ring 2 is centrosymmetric and hollow cylindrical, and comprises a second top surface 17, a second bottom surface 18, a second inner side surface 19 and a second outer side surface 20; one end of the second inner side surface 19 of the outer ring 2, which is close to the second bottom surface 18, extends towards the direction facing the axis of the outer ring 2 to form a circle of second protrusions 21;
the inner ring 1 and the outer ring 2 are coaxial, and the inner ring 1 is jointed with the outer ring 2 to form three joint surfaces, namely a first joint surface 22, a second joint surface 23 and a third joint surface 24;
the first groove 3, the second groove 4 and the third groove 5 are embedded in the inner ring 1, and the opening of the first groove 3 faces to the first joint surface 22, the opening of the second groove 4 faces to the second joint surface 23, and the opening of the third groove 5 faces to the third joint surface 24;
the fourth groove 6, the fifth groove 7 and the sixth groove 8 are embedded in the outer ring 2, and an opening of the fourth groove 6 faces to the first joint surface 22, an opening of the fifth groove 7 faces to the second joint surface 23, and an opening of the sixth groove 8 faces to the third joint surface 24;
the first groove 3 is opposite to the fourth groove 6, the second groove 4 is opposite to the fifth groove 7, and the third groove 5 is opposite to the sixth groove 8;
the ball 9 is positioned in a slideway formed by the first groove 3 and the fourth groove 6; the first roller 10 is positioned in a slideway formed by the second groove 4 and the fifth groove 7; the second roller 11 is located in the slideway formed by the third groove 5 and the sixth groove 8.
Preferably, the slewing bearing comprises a cover plate 25.
Preferably, the cover plate 25 is hollow and disk-shaped, and includes a third top surface 26, a third bottom surface 27, a third inner side surface 28, and a third outer side surface 29.
Preferably, the slewing bearing is inner ring 1 gear shaping; the cover plate 25 is located above the inner ring 1 and the outer ring 2 and the third bottom surface 27 of the cover plate 25 is opposite to the balls 9 and extends towards the balls 9 to be in contact with the balls 9 (see fig. 1-2).
Preferably, the slewing bearing is outer ring 2 gear shaping; the second top surface 17 of the outer ring 2 is partially recessed towards the second bottom surface 18 to form a circle of L-shaped grooves 30 which are opened to face away from the second bottom surface 18 and to face away from the second outer side surface 20; the cover plate 25 is positioned above the inner ring 1 and in the L-shaped groove 30 of the outer ring 2; the third bottom surface 27 of the cover plate 25 facing the balls 9 extends toward the balls 9 to be in contact with the balls 9 (see fig. 3-4).
Preferably, the swivel support comprises a peg 31.
Preferably, the slewing bearing is inner ring 1 gear shaping; the cover plate 25 is anchored to the collar 2 by means of pegs 31 and the pegs 31 are partially embedded in the collar 2 and partially in the cover plate 25 (see fig. 1-2).
Preferably, the slewing bearing is outer ring 2 gear shaping; the cover plate 25 is anchored to the inner ring 1 by means of pegs 31 and the pegs 31 are partly embedded in the inner ring 1 and partly in the cover plate 25 (see fig. 3-4).
Preferably, the slewing bearing comprises a grease nipple 32, and the grease nipple 32 is used for filling grease into the ball 9, the first roller 10 and the second roller 11.
Preferably, the slewing bearing is inner ring 1 gear shaping; the oil nipple 32 is arranged on the second outer side surface 20 of the outer ring 2 (see fig. 1-2).
Preferably, the slewing bearing is outer ring 2 gear shaping; the oil nipple 32 is arranged on the first inner side 14 of the inner ring 1 (see fig. 3-4).
The protection scope of the present invention is not limited to the above embodiments, and any modifications, equivalent replacements, and improvements that can be made by a person skilled in the art within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A slewing bearing is characterized by comprising an inner ring, an outer ring, a first groove, a second groove, a third groove, a fourth groove, a fifth groove, a sixth groove, a ball, a first roller and a second roller;
the inner ring is centrosymmetric, is in a hollow cylinder shape and comprises a first top surface, a first bottom surface, a first inner side surface and a first outer side surface; one end, close to the first top surface, of the first outer side surface of the inner ring extends towards the direction back to the axis of the inner ring to form a circle of first bulges;
the outer ring is centrosymmetric, is in a hollow cylinder shape and comprises a second top surface, a second bottom surface, a second inner side surface and a second outer side surface; one end, close to the second bottom surface, of the second inner side surface of the outer ring extends towards the direction facing the axis of the outer ring to form a circle of second protrusions;
the inner ring and the outer ring are coaxial, and the inner ring and the outer ring are jointed to form three joint surfaces which are a first joint surface, a second joint surface and a third joint surface respectively;
the first groove, the second groove and the third groove are embedded in the inner ring, the opening of the first groove faces the first joint face, the opening of the second groove faces the second joint face, and the opening of the third groove faces the third joint face;
the fourth groove, the fifth groove and the sixth groove are embedded in the outer ring, an opening of the fourth groove faces the first joint face, an opening of the fifth groove faces the second joint face, and an opening of the sixth groove faces the third joint face;
the first groove is opposite to the fourth groove, the second groove is opposite to the fifth groove, and the third groove is opposite to the sixth groove;
the ball is positioned in a slide way formed by the first groove and the fourth groove; the first roller is positioned in a slideway formed by the second groove and the fifth groove; the second roller is positioned in a slideway formed by the third groove and the sixth groove.
2. A slewing bearing according to claim 1, characterized in that the slewing bearing comprises a cover plate.
3. A slewing bearing according to claim 2, wherein the cover plate is hollow and disc-shaped and comprises a third top surface, a third bottom surface, a third inner side surface and a third outer side surface.
4. A slewing bearing according to claim 3, wherein said slewing bearing is inner ring gear shaping; the cover plate is located above the inner ring and the outer ring, and the position, facing the balls, of the third bottom surface of the cover plate extends towards the balls to be capable of contacting with the balls.
5. A slewing bearing according to claim 3, wherein said slewing bearing is outer ring gear; the second top surface part of the outer ring is recessed towards the second bottom surface to form a circle of L-shaped grooves with openings back to the second bottom surface and back to the second outer side surface; the cover plate is positioned above the inner ring and in the L-shaped groove of the outer ring; the position of the third bottom surface of the cover plate, which is opposite to the ball, extends towards the ball to be capable of contacting with the ball.
6. A slewing bearing according to any one of claims 1-5, characterized in that the slewing bearing comprises pegs.
7. A slewing bearing according to any one of claims 2-5, characterized in that the slewing bearing is an inner ring gear shaping; the cover plate is anchored on the outer ring through the studs, the studs are partially arranged in the outer ring, and the studs are partially arranged in the cover plate.
8. A slewing bearing according to any one of claims 2-5, characterized in that the slewing bearing is outer ring gear; the cover plate is anchored to the inner ring through the studs, and the studs are partially arranged in the inner ring and partially arranged in the cover plate.
9. A slewing bearing according to any one of claims 1-5, characterized in that the slewing bearing comprises a grease nipple for greasing the balls, the first roller and the second roller.
10. A slewing bearing according to claim 9, wherein said slewing bearing is inner ring gear shaping; the oil nozzle is arranged on the second outer side surface of the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920612725.4U CN210799730U (en) | 2019-04-29 | 2019-04-29 | Slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920612725.4U CN210799730U (en) | 2019-04-29 | 2019-04-29 | Slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210799730U true CN210799730U (en) | 2020-06-19 |
Family
ID=71231107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920612725.4U Active CN210799730U (en) | 2019-04-29 | 2019-04-29 | Slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210799730U (en) |
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2019
- 2019-04-29 CN CN201920612725.4U patent/CN210799730U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 87, Huicheng Road, Huishan Economic Development Zone, Wuxi, Jiangsu 214000 Patentee after: WUXI QIANGLI FORGING CO.,LTD. Address before: 214000 98 jinchengwan Road, Daqiao community, Taihu street, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI QIANGLI FORGING CO.,LTD. |