CN210240303U - Slewing bearing base - Google Patents
Slewing bearing base Download PDFInfo
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- CN210240303U CN210240303U CN201920625735.1U CN201920625735U CN210240303U CN 210240303 U CN210240303 U CN 210240303U CN 201920625735 U CN201920625735 U CN 201920625735U CN 210240303 U CN210240303 U CN 210240303U
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- bearing base
- slewing bearing
- roller
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Abstract
The utility model discloses a slewing bearing base belongs to mechanical technical field. The utility model discloses a. The slewing bearing base of the utility model uses the roller as the rolling body, and the processing difficulty and the requirement on the processing precision of the roller and the roller slideway are far lower than those of the ball, therefore, the slewing bearing base of the utility model has relatively simple manufacture, relatively low manufacturing requirement and more advantages in production; the slewing bearing base of the utility model uses two rows of rollers at the same time, and the arrangement can disperse the force received by the rollers on one hand, so that the rollers are not easy to wear and have longer service life; the utility model discloses a slewing bearing base divide into two rows with the tooth, and, the utility model discloses leave the space that can be used to store lubricating oil between two rows of teeth of slewing bearing base, this sets up can increase the moment of torsion, reduces wearing and tearing, makes the utility model discloses a slewing bearing base life-span is longer.
Description
Technical Field
The utility model relates to a slewing bearing base belongs to mechanical technical field.
Background
A slewing bearing base, also called a turntable bearing base, is a large-scale and super-large-scale bearing seat capable of simultaneously bearing comprehensive loads such as large axial load, radial load, overturning moment and the like.
The slewing bearing base can meet different requirements of various main machines working under different working conditions, and has the advantages of compact structure, convenient guide rotation, simple and convenient installation, easy maintenance and the like, so the slewing bearing base is widely applied to large slewing devices such as hoisting and transporting machinery, mining machines, constructional engineering machinery, port machinery, wind power generation, medical equipment, radars, missile launcher and the like, and occupies an important position in the mechanical field.
Most of the existing slewing bearing bases are point contact slewing bearing bases. The point contact rolling type slewing bearing base 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. However, the requirements of the slewing bearing base on the quality of the balls and the angle of the raceway are strict, the requirement on the precision of the matching tolerance between the balls and the inner ring and the outer ring is high, the machining difficulty is high, and once the requirements do not meet the standard, the slewing bearing base is easy to fail to be installed or the slewing bearing base is easy to be damaged mechanically during operation.
Therefore, it is urgently needed to design a slewing bearing base with lower requirements on machining precision to solve the problems of the existing slewing bearing base.
SUMMERY OF THE UTILITY MODEL
[ problem ] to
The to-be-solved technical problem of the utility model is to provide a slewing bearing base that requires lowly to the machining precision.
[ solution ]
In order to solve the above problems, the present invention provides a slewing bearing base, which comprises an inner ring, an outer ring, a first groove, a second groove, 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; 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; the inner ring and the outer ring are coaxial, and the first outer side surface of the inner ring is jointed with the second inner side surface of the outer ring;
a first groove is formed in the first outer side face of the inner ring, and a second groove is formed in the second inner side face of the outer ring; the first groove is opposite to the second groove;
the first roller and the second roller are positioned in a slideway formed by the first groove and the second groove; the first roller and the second roller are centrosymmetric and cylindrical; the first roller and the second roller are coaxial, and the axes of the first roller and the second roller are parallel to the axes of the inner ring and the outer ring.
In an embodiment of the present invention, the second outer side surface of the outer ring is connected to a flange near the second bottom surface.
In one embodiment of the present invention, the flange is centrosymmetric and has a hollow cylindrical shape; the flange is coaxial with the inner ring and the outer ring.
In an embodiment of the present invention, the flange is provided with a built-in threaded hole perpendicular to the flange.
In one embodiment of the present invention, the slewing bearing base includes a cover plate.
In an embodiment of the present invention, the cover plate is a hollow disc-shaped cover plate and the cover plate is located above the inner ring and the outer ring.
In an embodiment of the present invention, the cover plate is anchored to the outer ring by a stud.
In an embodiment of the present invention, the stud is partially disposed in the outer ring, and partially disposed in the cover plate.
In one embodiment of the present invention, the slewing bearing base is an inner ring gear shaping; the teeth are located on a first inner side of the inner race.
In an embodiment of the present invention, the teeth have two rows and a certain gap is left between the two rows of teeth.
In one embodiment of the invention, the diameter of the first roller is equal to the diameter of the second roller.
[ advantageous effects ]
(1) The slewing bearing base of the utility model uses the roller as the rolling body, and the processing difficulty and the requirement on the processing precision of the roller and the roller slideway are far lower than those of the ball, therefore, the slewing bearing base of the utility model has relatively simple manufacture, relatively low manufacturing requirement and more advantages in production;
(2) the slewing bearing base of the utility model uses two rows of rollers at the same time, and the arrangement can disperse the force received by the rollers on one hand, so that the rollers are not easy to wear and have longer service life;
(3) the slewing bearing base of the utility model divides the teeth into two rows, and a gap for storing lubricating oil is left between the two rows of teeth of the slewing bearing base of the utility model, so that the torque can be increased, and the abrasion is reduced, thus the service life of the slewing bearing base of the utility model is longer;
(4) the utility model discloses an inner circle, outer lane, apron are cylindric, 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 schematic front view of the slewing bearing base of the present invention.
Fig. 2 is a top view of the slewing bearing base 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 first roller, 6 is a second roller, 7 is a first top surface, 8 is a first bottom surface, 9 is a first inner side surface, 10 is a first outer side surface, 11 is a second top surface, 12 is a second bottom surface, 13 is a second inner side surface, 14 is a second outer side surface, 15 is a flange, 16 is a threaded hole, 17 is a cover plate, 18 is a stud and 19 is a tooth.
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. 1-2, the slewing bearing base of the present invention comprises an inner ring 1, an outer ring 2, a first groove 3, a second groove 4, a first roller 5 and a second roller 6;
the inner ring 1 is centrosymmetric, is hollow and cylindrical, and comprises a first top surface 7, a first bottom surface 8, a first inner side surface 9 and a first outer side surface 10; the outer ring 2 is centrosymmetric and hollow cylindrical, and comprises a second top surface 11, a second bottom surface 12, a second inner side surface 13 and a second outer side surface 14; the inner ring 1 and the outer ring 2 are coaxial, and a first outer side surface 10 of the inner ring 1 is jointed with a second inner side surface 13 of the outer ring 2;
a first groove 3 is formed in a first outer side surface 10 of the inner ring 1, and a second groove 4 is formed in a second inner side surface 13 of the outer ring 2; the first groove 3 is opposite to the second groove 4;
the first roller 5 and the second roller 6 are positioned in a slideway formed by the first groove 3 and the second groove 4; the first roller 5 and the second roller 6 are centrosymmetric and cylindrical; the first roller 5 and the second roller 6 are coaxial, and the axes of the first roller 5 and the second roller 6 are parallel to the axes of the inner ring 1 and the outer ring 2.
Preferably, a flange 15 is connected to an end of the second outer side surface 14 of the outer ring 2 close to the second bottom surface 12.
Preferably, the flange 15 is centrosymmetric and has a hollow cylindrical shape; the flange 15 is coaxial with the inner ring 1 and the outer ring 2.
Preferably, the flange 15 is provided with a threaded hole 16 which is internally arranged and perpendicular to the flange 15.
Preferably, the slewing bearing base comprises a cover plate 17.
Preferably, the cover plate 17 has a hollow disk shape, and the cover plate 17 is located above the inner ring 1 and the outer ring 2.
Preferably, the cover plate 17 is nailed to the collar 2 by means of studs 18.
Preferably, the pegs 18 are partially embedded in the outer ring 2 and partially in the cover plate 17.
Preferably, the slewing bearing base is an inner ring 1 gear shaping; the teeth 19 are located on the first inner side 9 of the inner ring 1.
Preferably, there are two rows of the teeth 19 and a certain gap is left between the two rows of the teeth 19.
Preferably, the diameter of the first roller 5 is equal to the diameter of the second roller 6.
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 base is characterized by comprising an inner ring, an outer ring, a first groove, a second groove, 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; 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; the inner ring and the outer ring are coaxial, and the first outer side surface of the inner ring is jointed with the second inner side surface of the outer ring;
a first groove is formed in the first outer side face of the inner ring, and a second groove is formed in the second inner side face of the outer ring; the first groove is opposite to the second groove;
the first roller and the second roller are positioned in a slideway formed by the first groove and the second groove; the first roller and the second roller are centrosymmetric and cylindrical; the first roller and the second roller are coaxial, and the axes of the first roller and the second roller are parallel to the axes of the inner ring and the outer ring.
2. A slewing bearing base as claimed in claim 1, wherein a flange is attached to the second outer side of the outer ring adjacent the second bottom surface.
3. A slewing bearing base as claimed in claim 2, characterized in that said flanges are centrosymmetric and hollow-cylindrical; the flange is coaxial with the inner ring and the outer ring.
4. A slewing bearing base as claimed in claim 3, characterized in that the flange is provided with a threaded hole arranged in and perpendicular to the flange.
5. A slewing bearing base according to any one of claims 1-4, characterized in that said slewing bearing base comprises a cover plate.
6. A slewing bearing base as claimed in claim 5, wherein said cover plate is hollow disc-shaped and is located above the inner and outer races.
7. A slewing bearing base according to claim 5, characterised in that the cover plate is anchored to the outer ring by means of studs.
8. A slewing bearing base according to claim 7, characterised in that the peg is partly built into the outer ring and partly into the cover plate.
9. A slewing bearing base according to any one of claims 1-4 or 6-8, wherein said slewing bearing base is inner-ring gear shaping; the teeth are located on a first inner side of the inner race.
10. A slewing bearing base as claimed in claim 9, characterized in that said teeth are arranged in two rows with a space between the rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625735.1U CN210240303U (en) | 2019-04-30 | 2019-04-30 | Slewing bearing base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625735.1U CN210240303U (en) | 2019-04-30 | 2019-04-30 | Slewing bearing base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240303U true CN210240303U (en) | 2020-04-03 |
Family
ID=69969548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920625735.1U Active CN210240303U (en) | 2019-04-30 | 2019-04-30 | Slewing bearing base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240303U (en) |
-
2019
- 2019-04-30 CN CN201920625735.1U patent/CN210240303U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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. |
|
| CP02 | Change in the address of a patent holder |