CN220396273U - Roller type slewing bearing - Google Patents
Roller type slewing bearing Download PDFInfo
- Publication number
- CN220396273U CN220396273U CN202321920181.0U CN202321920181U CN220396273U CN 220396273 U CN220396273 U CN 220396273U CN 202321920181 U CN202321920181 U CN 202321920181U CN 220396273 U CN220396273 U CN 220396273U
- Authority
- CN
- China
- Prior art keywords
- ring
- roller
- inner ring
- slewing bearing
- rollers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 abstract description 19
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a roller type slewing bearing, which comprises an inner ring, an outer upper ring, an outer lower ring, a first roller and a second roller, wherein the outer upper ring and the outer lower ring are detachably connected up and down to form an outer ring; the center of the outer side surface of the inner ring is provided with a step edge, a plurality of first rollers are in a surrounding shape and movably arranged on the side surface of the inner ring, a plurality of second rollers are in a surrounding shape and movably arranged on the top surface and the bottom surface of the step edge, the first rollers are in a vertical shape, and the second rollers are in a horizontal shape; the outer ring is concentric with the inner ring, the outer ring is positioned at the outer side of the inner ring, and the first roller and the second roller are both attached to the outer upper ring and the outer lower ring. In the utility model, the first roller and the second roller play a role of rolling bodies, and no matter the slewing bearing is horizontally placed, obliquely placed or vertically placed, the outer upper ring and the outer lower ring always keep rolling friction with the first roller and the second roller, so that the situation of sliding friction of the end faces of the rolling bodies in the past is eliminated.
Description
Technical Field
The utility model relates to the field of slewing bearings, in particular to a roller slewing bearing.
Background
The slewing bearing is a large-scale bearing for bearing comprehensive load, and mainly comprises an inner ring and an outer ring and rolling bodies, wherein the rolling bodies are arranged between the inner ring and the outer ring, the inner ring and the outer ring can rotate relatively, and the slewing bearing is widely applied to various engineering mechanical equipment and light industrial mechanical equipment; the rolling body of the roller type slewing bearing is a cylinder; at least one row of roller bodies is generally arranged in the conventional roller type slewing bearing, and some roller bodies are obliquely arranged between the inner ring and the outer ring at an angle of 45 degrees (for example, the patent with the application number of 201201519789. X is provided with oblique cylindrical rollers), and the side surfaces and the end surfaces of the roller bodies are attached to the inner ring and the outer ring, so that the inner ring and the outer ring can rotate relatively.
However, the slewing bearing can be horizontally placed or vertically placed in the use process, when the inner ring and the outer ring rotate, rolling friction is generated between the inner ring and the side face of the rolling cylinder, sliding friction is generated between the inner ring and the end face of the rolling cylinder, particularly when the slewing bearing is vertically placed, the inner ring can be slightly displaced downwards due to dead weight, the inner ring and the outer ring are closer to the end face of the rolling cylinder positioned below and are attached to each other, so that the sliding friction force of the end face of the rolling cylinder is increased, the normal rotation of the inner ring and the outer ring is influenced to a certain extent, and the abrasion of the end face of the rolling cylinder is also increased.
The present utility model has been made in view of the above problems.
Disclosure of Invention
The utility model aims to provide a roller type slewing bearing, which mainly solves the problems in the background art.
The utility model provides a roller type slewing bearing, which comprises an inner ring, an outer upper ring, an outer lower ring, a first roller and a second roller, wherein the outer upper ring and the outer lower ring are connected up and down in a detachable manner to form an outer ring;
the center of the outer side surface of the inner ring is provided with a step edge, a plurality of first rollers are in a surrounding shape and movably arranged on the side surface of the inner ring, a plurality of second rollers are in a surrounding shape and movably arranged on the top surface and the bottom surface of the step edge, the first rollers are in a vertical shape, and the second rollers are in a horizontal shape;
the outer ring is concentric with the inner ring, the outer ring is positioned at the outer side of the inner ring, the first roller and the second roller are respectively attached to the outer upper ring and the outer lower ring, and a gap is reserved between the outer side face of the step edge and the inner side face of the outer ring.
In a preferred embodiment, the outer upper ring is provided with four first screw holes, the outer lower ring is provided with four second screw holes, the first screw holes and the second screw holes are aligned up and down, and the fastening bolts are screwed into the first screw holes and the second screw holes.
In a preferred embodiment, the side faces of the inner ring, the top face and the bottom face of the step edge are each provided with cavities, in which cavities the first roller and the second roller are each mounted.
In a preferred embodiment, the inner ring, the outer upper ring and the outer lower ring are each provided with a number of through holes, and the inner side of the inner ring is further provided with a number of teeth.
In a preferred embodiment, a sealing ring is also included, the sealing ring being mounted to a side of the inner ring.
The utility model has the technical effects and advantages that:
the first roller and the second roller play a role of rolling bodies, and no matter the slewing bearing is horizontally placed, obliquely placed or vertically placed, the outer upper ring and the outer lower ring always keep rolling friction with the first roller and the second roller, so that the situation of sliding friction of the end faces of the rolling bodies in the past is eliminated; the outer ring and the inner ring can smoothly rotate for a long time, and the abrasion is reduced; the outer upper ring and the outer lower ring are designed in a detachable mode, the first roller and the second roller are more convenient to assemble, and oiling and lubrication are more convenient in daily use.
Drawings
FIG. 1 is an overall top view;
FIG. 2 is a front view of the inner ring, outer upper ring and outer lower ring;
FIG. 3 is an elevation view of the inner ring, first roller and second roller;
FIG. 4 is a top view of the inner ring, first roller and second roller;
fig. 5 is a front cross-sectional view showing the positional relationship between the outer upper ring and the outer lower ring, and the first roller and the second roller.
Reference numerals illustrate: 1. an inner ring; 10. a step edge; 11. a first roller; 12. a second roller; 2. an outer upper ring; 21. a first screw hole; 3. an outer lower ring; 31. a second screw hole; 4. a fastening bolt; 5. a through hole; 6. teeth; 7. and (3) sealing rings.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
1-5, the roller type slewing bearing comprises an inner ring 1, an outer upper ring 2, an outer lower ring 3, a first roller 11 and a second roller 12, wherein the outer upper ring 2 and the outer lower ring 3 are detachably connected up and down to form an outer ring;
the center of the outer side surface of the inner ring 1 is provided with a step edge 10, the side surfaces of the outer upper ring 2 and the outer lower ring 3 are provided with notches corresponding to the step edge 10, a plurality of first rollers 11 are in a surrounding shape and movably mounted on the side surface of the inner ring 1, a plurality of second rollers 12 are in a surrounding shape and movably mounted on the top surface and the bottom surface of the step edge 10, the first rollers 11 are vertical, and the second rollers 12 are horizontal;
the outer ring is concentric with the inner ring 1, the outer ring is positioned at the outer side of the inner ring 1, the first roller 11 and the second roller 12 are respectively attached to the notch positions of the outer upper ring 2 and the outer lower ring 3, and a gap is reserved between the outer side surface of the step edge 10 and the inner side surface (notch) of the outer ring.
The first roller 11 and the second roller 12 act as rolling bodies, and the rolling friction is kept between the outer ring and the inner ring 1 and the first roller 11 and the second roller 12 all the time no matter the slewing bearing is in a horizontal, vertical or inclined posture.
Still include fastening bolt 4, outer go up ring 2 and be provided with four first screw holes 21, outer lower ring 3 is provided with four second screw holes 31, and first screw hole 21 and second screw hole 31 align from top to bottom, and fastening bolt 4 screws first screw hole 21 and second screw hole 31, through fastening bolt 4, realizes outer go up ring 2 and outer lower ring 3 detachable connection.
The side face of the inner ring 1, the top surface and the bottom surface of the step edge 10 are provided with a plurality of cavities, the first roller 11 and the second roller 12 are arranged in the cavities, lubricating oil is coated in the cavities, and the first roller 11 and the second roller 12 can rotate in the cavities.
The inner ring 1, the outer upper ring 2 and the outer lower ring 3 are all provided with a plurality of through holes 5, the through holes 5 facilitate the installation of the utility model on mechanical parts, and the inner side surface of the inner ring 1 is also provided with a plurality of teeth 6.
The novel inner ring is characterized by further comprising a sealing ring 7, wherein the sealing ring 7 is arranged on the side face of the inner ring 1, the sealing ring 7 covers a gap between the inner ring 1 and the outer ring, and the inner first roller 11 and the inner second roller 12 are protected.
In summary, the first roller 11 and the second roller 12 act as rolling bodies between the outer ring and the inner ring 1, the outer ring and the inner ring 1 always keep rolling friction with the first roller 11 and the second roller 12, the outer ring and the inner ring 1 rotate more smoothly, and abrasion is smaller.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (5)
1. The roller type slewing bearing is characterized by comprising an inner ring (1), an outer upper ring (2) and an outer lower ring (3), wherein a first roller (11) and a second roller (12) are detachably connected with the outer upper ring (2) and the outer lower ring (3) up and down to form an outer ring;
the center of the outer side surface of the inner ring (1) is provided with a step edge (10), a plurality of first rollers (11) are in a surrounding shape and movably mounted on the side surface of the inner ring (1), a plurality of second rollers (12) are in a surrounding shape and movably mounted on the top surface and the bottom surface of the step edge (10), the first rollers (11) are vertical, and the second rollers (12) are horizontal;
the outer ring is concentric with the inner ring (1), the outer ring is positioned at the outer side of the inner ring (1), the first roller (11) and the second roller (12) are respectively attached to the outer upper ring (2) and the outer lower ring (3), and a gap is reserved between the outer side surface of the step edge (10) and the inner side surface of the outer ring.
2. A roller type slewing bearing as claimed in claim 1, further comprising a fastening bolt (4), wherein the outer upper ring (2) is provided with four first screw holes (21), the outer lower ring (3) is provided with four second screw holes (31), the first screw holes (21) and the second screw holes (31) are aligned up and down, and the fastening bolt (4) is screwed into the first screw holes (21) and the second screw holes (31).
3. A roller slewing bearing as claimed in claim 2, characterized in that the side surfaces of the inner ring (1), the top surface and the bottom surface of the step edge (10) are provided with cavities, in which cavities the first roller (11) and the second roller (12) are mounted.
4. A roller slewing bearing as claimed in claim 3, characterized in that the inner ring (1), the outer upper ring (2) and the outer lower ring (3) are each provided with a number of through holes (5), and that the inner side of the inner ring (1) is further provided with a number of teeth (6).
5. A roller slewing bearing as claimed in claim 4, further comprising a sealing ring (7), the sealing ring (7) being mounted to the side of the inner ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321920181.0U CN220396273U (en) | 2023-07-20 | 2023-07-20 | Roller type slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321920181.0U CN220396273U (en) | 2023-07-20 | 2023-07-20 | Roller type slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220396273U true CN220396273U (en) | 2024-01-26 |
Family
ID=89597970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321920181.0U Active CN220396273U (en) | 2023-07-20 | 2023-07-20 | Roller type slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220396273U (en) |
-
2023
- 2023-07-20 CN CN202321920181.0U patent/CN220396273U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101389872B (en) | Double-row slant roll bearing comprising a split outer bearing ring and a one-piece inner bearing ring | |
| KR20140005360A (en) | Large rolling bearing | |
| CN220396273U (en) | Roller type slewing bearing | |
| CN101403242B (en) | Cast steel ball hinged support | |
| CN203604435U (en) | Z-shaped rotary supporting device | |
| CN112648287A (en) | Double-row crossed cylindrical roller bearing | |
| CN108533616B (en) | Low-speed heavy-load ball bearing | |
| CN202790127U (en) | Sealing structure of bearing | |
| CN215110155U (en) | Embedded detachable guide key for roller press | |
| CN211174999U (en) | Combined thrust tapered roller turntable bearing | |
| CN205331214U (en) | Large -scale flat housing | |
| CN207864424U (en) | The heavily loaded double row spherical roller bearing of mining machinery jaw crusher | |
| CN203570855U (en) | Dust prevention structure for large-bearing-capacity slewing bearing | |
| CN207178458U (en) | A kind of anti-jamming thrust ball bearing | |
| CN110873118A (en) | Composite thrust tapered roller turntable bearing | |
| CN215890781U (en) | Double-row crossed cylindrical roller bearing | |
| CN216027092U (en) | Rotary pressing structure for precision rolling mill | |
| CN214146272U (en) | Slewing bearing | |
| CN211778598U (en) | Lubricating locking device for inlet guide | |
| CN108087421A (en) | A kind of heavily loaded double row spherical roller bearing of mining machinery jaw crusher | |
| CN220268207U (en) | Dustproof tapered roller bearing | |
| CN212253606U (en) | Rotary kiln catch wheel body | |
| CN215762803U (en) | Bidirectional thrust double-row tapered roller bearing | |
| CN210505413U (en) | Connecting shaft structure of lifting platform | |
| CN219932718U (en) | High-bearing deep groove ball bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |