CN220151729U

CN220151729U - Novel slewing bearing

Info

Publication number: CN220151729U
Application number: CN202321426457.XU
Authority: CN
Inventors: 李际其; 赵军
Original assignee: Anhui Yuanfeng Slewing Rings Co ltd
Current assignee: Anhui Yuanfeng Slewing Rings Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-12-08
Anticipated expiration: 2033-06-06

Abstract

The utility model relates to a novel slewing bearing, which comprises an outer ring, an inner upper ring, an inner lower ring, balls and fastening bolts, wherein a plurality of convex blocks are arranged on the bottom surface of the inner upper ring, and a plurality of grooves are arranged on the top surface of the inner lower ring; when the inner upper ring and the inner lower ring are vertically attached, the convex blocks correspond to the grooves, the inner upper ring and the inner lower ring are detachably connected through fastening bolts, and the inner upper ring and the inner lower ring form an inner ring body; the inner side of the outer ring is provided with a first channel, the outer side of the inner upper ring is provided with a first slope, the outer side of the inner lower ring is provided with a second slope, and when the inner ring body is positioned at the central position of the outer ring, the first channel, the first slope and the second slope form a cavity for accommodating a plurality of balls. In the utility model, the inner upper ring and the inner lower ring are convenient to assemble and disassemble, and a large number of balls can be conveniently placed into the cavity channel during initial assembly and lubricating oil can be smeared at one time; in the use process, the damaged ball is also convenient to replace.

Description

Novel slewing bearing

Technical Field

The utility model relates to the field of slewing bearings, in particular to a novel slewing bearing.

Background

The slewing bearing is a mechanical part and consists of an inner ring, an outer ring and rolling bodies, and is a large-scale bearing capable of bearing comprehensive load, wherein the rolling bodies are arranged between slide ways of the inner ring and the outer ring, so that the inner ring and the outer ring can relatively rotate; the inner side surface of some inner rings is provided with round holes, and during specific installation, the inner rings are suspended, so that the inner rings are just positioned at the central through hole of the outer rings, the concentricity of the inner rings and the outer rings is ensured, a plurality of balls are smeared with butter one by one, and are plugged into the slideways of the inner rings and the outer rings through the round holes, so that the assembly is completed.

However, the number of the balls is large, the assembly mode is time-consuming and labor-consuming, and in the long-time use process of the slewing bearing, the bearing is unevenly stressed, so that some balls are damaged, and when the damaged balls need to be taken out and new balls need to be put in, the operation is very troublesome; if the new slewing bearing is completely replaced, the use cost of enterprises is certainly increased; the present utility model has been made in view of this situation.

Disclosure of Invention

The utility model aims to provide a novel slewing bearing, which mainly solves the problems in the background art.

The utility model provides a novel slewing bearing, which comprises an outer ring, an inner upper ring, an inner lower ring, balls and fastening bolts, wherein a plurality of convex blocks are arranged on the bottom surface of the inner upper ring, and a plurality of grooves are arranged on the top surface of the inner lower ring;

when the inner upper ring and the inner lower ring are vertically attached, the convex blocks correspond to the grooves, the inner upper ring and the inner lower ring are detachably connected through fastening bolts, and the inner upper ring and the inner lower ring form an inner ring body;

the inner side of the outer ring is provided with a first channel, the outer side of the inner upper ring is provided with a first slope, the outer side of the inner lower ring is provided with a second slope, and when the inner ring body is positioned at the central position of the outer ring, the first channel, the first slope and the second slope form a cavity for accommodating a plurality of balls.

In a preferred embodiment, the device further comprises a spacer, the cross section of the first channel is semicircular, the cross sections of the first slope surface and the second slope surface are in a quarter circular arc shape, and a plurality of spacer and balls are placed in the cavity in a staggered mode.

In a preferred embodiment, the inner upper ring is provided with a number of first holes and the inner lower ring is provided with a number of second holes, the first holes being aligned with the second holes, the fastening bolts passing through the first holes and the second holes.

In a preferred embodiment, the device further comprises sealing rings, wherein the sealing rings are arranged above and below the inner side surface of the outer ring.

In a preferred embodiment, the outer ring, the inner upper ring and the inner lower ring are provided with a plurality of mounting holes, and the outer side surface of the outer ring is also provided with teeth.

The utility model has the technical effects and advantages that:

the inner upper ring and the inner lower ring are convenient to disassemble and assemble, and a large number of balls can be conveniently placed into the cavity channel during initial assembly, and lubricating oil is smeared at one time; in the use process, the damaged ball is convenient to replace, the use cost of enterprises is saved, and the ball can be popularized and used in various engineering machinery.

Drawings

FIG. 1 is an overall top view;

FIG. 2 is a top view of the positional relationship of the outer ring and the inner upper ring;

FIG. 3 is a bottom view of the inner upper ring;

FIG. 4 is a top view of the inner lower ring;

fig. 5 is a front cross-sectional view of the outer ring, the inner upper ring, and the inner lower ring.

Reference numerals illustrate: 1. an outer ring; 11. a first channel; 2. an inner upper ring; 21. a first slope; 22. a bump; 23. a first hole; 3. an inner lower ring; 31. a second slope; 32. a groove; 33. a second hole; 4. a ball; 5. a spacer block; 6. a seal ring; 7. a fastening bolt; 8. and (5) mounting holes.

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 novel slewing bearing comprises an outer ring 1, an inner upper ring 2, an inner lower ring 3, balls 4 and fastening bolts 7, wherein a plurality of protruding blocks 22 are arranged on the bottom surface of the inner upper ring 2, a plurality of grooves 32 are arranged on the top surface of the inner lower ring 3, and the protruding blocks 22 and the grooves 32 are uniformly distributed in a circumferential path;

when the inner upper ring 2 and the inner lower ring 3 are attached up and down, the convex blocks 22 are correspondingly attached to the grooves 32, the inner upper ring 2 and the inner lower ring 3 are detachably connected through the fastening bolts 7, and the inner upper ring 2 and the inner lower ring 3 form an inner ring body;

the joint of the convex blocks 22 and the grooves 32 also plays a role in conducting force, so that the inner upper ring 2 and the inner lower ring 3 synchronously rotate, and the conduction force is prevented from being completely concentrated on the fastening bolt 7; after long-time use, the error of synchronous rotation of the inner upper ring 2 and the inner lower ring 3 is very small.

The inner side of the outer ring 1 is provided with a first channel 11, the outer side of the inner upper ring 2 is provided with a first slope 21, the outer side of the inner lower ring 3 is provided with a second slope 31, and when the inner ring body is positioned at the central position of the outer ring 1, the first channel 11, the first slope 21 and the second slope 31 form a cavity for accommodating a plurality of balls 4, and under the action of the balls 4, the inner ring body and the outer ring 1 can rotate relatively.

The cross section of the first channel 11 is semicircular, the cross sections of the first slope 21 and the second slope 31 are in a quarter arc shape, a plurality of spacer blocks 5 and balls 4 are placed in the cavity in a staggered mode, and the spacer blocks 5 play a role in a ball retainer, so that all the balls 4 are always located at a certain position.

The inner upper ring 2 is provided with a plurality of first holes 23, the inner lower ring 3 is provided with a plurality of second holes 33, the first holes 23 are aligned with the second holes 33, and the fastening bolts 7 penetrate through the first holes 23 and the second holes 33 to realize detachable connection of the inner upper ring 2 and the inner lower ring 3.

The sealing ring 6 is arranged above and below the inner side surface of the outer ring 1, and the specific mounting structure is the prior art, so that the description is not expanded; the sealing ring 6 covers the gap between the outer ring 1 and the inner ring body, so that dust and water vapor are prevented from contacting the ball 4; the surface of the sealing ring 6 and the surface of the inner ring body are provided with extremely small intervals, and the sealing ring 6 does not influence the normal rotation of the inner ring body.

The outer ring 1, the inner upper ring 2 and the inner lower ring 3 are respectively provided with a plurality of mounting holes 8, the slewing bearing is arranged on mechanical equipment through the mounting holes 8, the outer side surface of the outer ring 1 is also provided with teeth, and an external driving structure drives the outer ring 1 to rotate through the meshing teeth.

In summary, during assembly, the inner lower ring 3 is firstly placed at the lower center of the outer ring 1, at this time, the first channel 11 and the second slope 31 are exposed, so that a large number of balls 4 and spacer blocks 5 (or other types of ball retainers) can be conveniently placed in the first channel 11 and the second slope 31 at intervals, and after the placement is finished, lubricating oil can be smeared at one time; then the inner upper ring 2 is arranged on the inner lower ring 3;

in the use, when some balls 4 damage and need to be changed, dismantle interior go up ring 2, take out damaged ball 4, it is also comparatively convenient to change.

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

1. The novel slewing bearing is characterized by comprising an outer ring (1), an inner upper ring (2), an inner lower ring (3), balls (4) and fastening bolts (7), wherein a plurality of protruding blocks (22) are arranged on the bottom surface of the inner upper ring (2), and a plurality of grooves (32) are formed in the top surface of the inner lower ring (3);

when the inner upper ring (2) is attached to the inner lower ring (3) up and down, the convex blocks (22) correspond to the grooves (32), the inner upper ring (2) is detachably connected with the inner lower ring (3) through the fastening bolts (7), and the inner upper ring (2) and the inner lower ring (3) form an inner ring body;

the inner side of outer loop (1) is provided with first channel (11), and the outer side of interior upper ring (2) is provided with first domatic (21), and the outer side of interior lower ring (3) is provided with second domatic (31), and when the central point that the inner ring body was located outer loop (1), first channel (11), first domatic (21) and second domatic (31) constitute the chamber way that is used for holding a plurality of balls (4).

2. The novel slewing bearing as claimed in claim 1, further comprising spacer blocks (5), wherein the cross section of the first channel (11) is semicircular, the cross sections of the first sloping surface (21) and the second sloping surface (31) are in a quarter circular arc shape, and the plurality of spacer blocks (5) and the balls (4) are placed in the cavity in a staggered manner.

3. A new slewing bearing as claimed in claim 2, characterized in that the inner upper ring (2) is provided with a number of first holes (23), the inner lower ring (3) is provided with a number of second holes (33), the first holes (23) are aligned with the second holes (33), and the fastening bolts (7) pass through the first holes (23) and the second holes (33).

4. A novel slewing bearing as claimed in claim 3, further comprising a sealing ring (6), wherein the sealing ring (6) is mounted above and below the inner side of the outer ring (1).

5. The novel slewing bearing of claim 4, wherein the outer ring (1), the inner upper ring (2) and the inner lower ring (3) are provided with a plurality of mounting holes (8), and the outer side surface of the outer ring (1) is also provided with teeth.