CN217301254U

CN217301254U - Slewing bearing capable of being fixed quickly

Info

Publication number: CN217301254U
Application number: CN202220379353.7U
Authority: CN
Inventors: 蒋永初; 蒋一鑫; 罗新; 张秦
Original assignee: Changzhou Aoxuan Heavy Bearing Co ltd
Current assignee: Changzhou Aoxuan Heavy Bearing Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-08-26
Anticipated expiration: 2032-02-24

Abstract

The utility model provides a quick fixed slewing bearing, include: the shaft outer ring, a plurality of mounting holes which are annularly formed in the top end of the interior of the shaft outer ring at equal intervals, and a plurality of limiting holes which are annularly formed in the bottom end of the interior of the shaft outer ring at equal intervals; the mounting holes and the limiting holes are concentrically designed and are communicated with each other; an installation part penetrates through the interior of the installation hole, a limiting part is sleeved at the bottom end of the outer wall of the installation part, and the limiting part is suitable for being inserted into the limiting hole; when the shaft outer ring is placed, the mounting part can extend out of the mounting hole, so that the limiting part can abut against the bottom end face of the limiting hole; before using slewing bearing, through placing the axle outer lane in suitable position, the installation department at this moment receives the extrusion and stretches out from the mounting hole for installation department and sealing ring mutually support and realize sealed effect, prevent that the dust from getting into in the mounting hole.

Description

Slewing bearing capable of being fixed quickly

Technical Field

The utility model relates to a slewing bearing technical field particularly, relates to a quick fixed slewing bearing.

Background

With the continuous development of the current society and the continuous progress of science and technology, the slewing bearing is taken as one of the bearing fields, the slewing bearing is applied more and more widely in the modern society at present, and the slewing bearing is mainly applied to the following fields: in the aspects of automobile cranes, railway cranes, port cranes, marine cranes and the like, the slewing bearing is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moments;

however, the slewing bearing cannot be fixed in a self-adaptive manner in the actual use process, and is very cumbersome to install, so that a novel slewing bearing capable of being fixed quickly is required to replace the slewing bearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slewing bearing of quick fixation to solve above-mentioned problem.

In order to achieve the above object, an embodiment of the present invention provides a slewing bearing capable of being fixed quickly, including: the shaft outer ring, a plurality of mounting holes which are annularly formed in the top end of the interior of the shaft outer ring at equal intervals, and a plurality of limiting holes which are annularly formed in the bottom end of the interior of the shaft outer ring at equal intervals; the mounting holes and the limiting holes are concentrically designed and are communicated with each other; an installation part penetrates through the interior of the installation hole, a limiting part is sleeved at the bottom end of the outer wall of the installation part, and the limiting part is suitable for being inserted into the limiting hole; when the shaft outer ring is placed, the mounting portion can extend out of the mounting hole, so that the limiting portion can abut against the bottom end face of the limiting hole.

Furthermore, the mounting part comprises a mounting column penetrating through the inside of the mounting hole, a lantern ring arranged on the mounting column and wound on the top end of the outer wall of the mounting column; wherein the outer race is disposed, the collar being extendable from the mounting bore.

Further, a sealing ring is annularly arranged at the edge position of the opening of the mounting hole; the sealing ring and the lantern ring are mutually matched; wherein the collar is capable of wrapping around the sealing ring after the collar is extended from the mounting hole to prevent dust from entering the mounting hole.

Furthermore, the mounting part also comprises a guide block arranged at the bottom end of the outer wall of the mounting column; the limiting part comprises a rotating sleeve sleeved at the bottom end of the outer wall of the mounting column and a spiral groove formed in the inner wall of the rotating sleeve, and the guide block is suitable for extending into the spiral groove; when the mounting post extends out of the mounting hole, the guide block can slide along the spiral groove, so that the rotating sleeve can rotate on the mounting post.

Furthermore, the limiting part also comprises a limiting sleeve sleeved on the outer wall of the rotating sleeve; when the rotating sleeve rotates on the mounting column, the limiting sleeve can ascend on the outer wall of the rotating sleeve, so that the limiting sleeve can abut against the bottom end face of the limiting hole.

Furthermore, the outer surface of the rotating sleeve is provided with internal threads, and the inner surface of the limiting sleeve is provided with external threads; the rotating sleeve is in threaded connection with the limiting sleeve.

Furthermore, a shaft inner ring is arranged on the inner wall of the shaft outer ring, and a plurality of balls are annularly arranged between the shaft outer ring and the shaft inner ring at equal intervals.

Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has: before the slewing bearing is used, the shaft outer ring is placed at a proper position, and the mounting part extends out of the mounting hole under extrusion, so that the mounting part and the sealing ring are matched with each other to realize a sealing effect, and dust is prevented from entering the mounting hole;

and, the installation department is at the in-process that stretches out, spacing portion can upwards rotary displacement to reach the fixed effect of secondary, make slewing bearing more stable when using.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 shows a perspective view of a fast-fixing pivoting support of the present invention;

fig. 2 shows a front sectional view of a fast-fixing slewing bearing according to the invention;

FIG. 3 illustrates a partial front sectional view of the mounting portion of the present invention;

fig. 4 shows an enlarged view of the structure at a in fig. 2 of the present invention.

In the drawings

The shaft outer ring 1, a mounting hole 11, a sealing ring 12 and a limiting hole 13;

a shaft inner ring 2;

the mounting part 3, the mounting column 31, the lantern ring 32 and the guide block 33;

the limiting part 4, the rotating sleeve 41, the spiral groove 42 and the limiting sleeve 43;

and a ball 5.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

Referring to fig. 1-4, a fast-fixing slewing bearing includes: the shaft outer ring comprises a shaft outer ring 1, a plurality of mounting holes 11, a plurality of limiting holes 13, a shaft inner ring 2 and balls 5, wherein the mounting holes 11 and the limiting holes 13 are concentrically designed and are communicated with each other, a mounting part 3 penetrates through the mounting holes 11, a limiting part 4 is sleeved at the bottom end of the outer wall of the mounting part 3, and the limiting part 4 is suitable for being inserted into the limiting holes 13, so that the mounting part 3 extends out of the mounting holes 11 by extrusion when the shaft outer ring 1 is placed at a proper position before the slewing bearing is used, the mounting part 3 is matched with a sealing ring 12 to realize a sealing effect, and dust is prevented from entering the mounting holes 11; in addition, in the extending process of the mounting part 3, the limiting part 4 can rotate and displace upwards to achieve the effect of secondary fixing, so that the pivoting support is more stable in use; the above components are described in detail below.

Outer race of shaft 1

The shaft outer ring 1 is an important component of the slewing support, and the shaft outer ring 1 and the shaft inner ring 2 are matched with each other, so that the shaft outer ring 1 and the shaft inner ring 2 slide relatively in the use process, and a large-scale apparatus is fixed on the slewing support to realize the effect of the slewing support;

ball 5

Because the ball 3 is also one of the components of the slewing bearing, the ball 3 is annularly arranged between the bearing outer ring 2 and the bearing inner ring 1 at equal intervals, the self function is that the bearing outer ring 2 and the bearing inner ring 1 play a role of guiding and supporting when sliding relatively, and the ball 3 is arranged between the two, so that the two can not be separated when sliding relatively, and the two can be more stable when sliding.

Mounting part 3

The maximum outer diameter of the mounting part 3 is smaller than the maximum inner diameter of the mounting hole 11, so that the mounting part 3 can be inserted into the mounting hole 11, the effect of supporting and fixing the shaft outer ring 1 and the shaft inner ring 2 can be realized by inserting the mounting part 3 into the mounting hole 11, and the mounting part 3 can extend out of the mounting hole 11 in the process of placing the shaft outer ring 1 so as to realize the effect of secondary fixing;

the structure of the mounting portion 3 will be described in detail below, and the mounting portion 3 includes: the mounting post 31 penetrates through the mounting hole 11, the collar 32 is arranged on the mounting post 31 and wound on the top end of the outer wall of the mounting post 31, the mounting post 31 is inserted into the mounting hole 11, and the collar 32 on the mounting post 31 is extruded on the inner wall of the mounting hole 11 at the moment, so that the mounting post 31 is preliminarily fixed;

wherein, a sealing ring 12 is annularly arranged at the edge position of the opening of the mounting hole 11; mutual adaptation between sealing ring 12 and the lantern ring 32, when carrying out fixed mounting to counter shaft outer lane 1 and axle inner circle 2, axle outer lane 1 and axle inner circle 2 can be placed in suitable position, and then, erection column 31 is extruded, stretch out from the opening part of mounting hole 11, when lantern ring 32 on the outer wall of erection column 31 stretches out from the opening part of mounting hole 11, lantern ring 32 can overlap on the outer wall of sealing ring 12, mutually support between through sealing ring 12 and lantern ring 32, and then realize sealed effect, dust and debris have been prevented from getting into in the mounting hole 11.

Stopper 4

The limiting part 4 is sleeved on the outer wall of the mounting column 31, when the mounting column 31 is inserted into the mounting hole 11, the upper half part of the limiting part 4 can extend into the limiting hole 13 to realize the mounting limiting effect, and when the mounting column 31 is extruded and separated from the mounting hole 11, the limiting part 4 can also rotate and move upwards until abutting against the bottom end face of the limiting hole 13, so that the secondary mounting and fixing effect is realized;

the structure of the stopper portion 4 is described in detail below, and the stopper portion 4 includes: the rotating sleeve 41 is sleeved at the bottom end of the outer wall of the mounting column 31, the spiral groove 42 is formed in the inner wall of the rotating sleeve 41, the guide block 33 is suitable for extending into the spiral groove 42, and the guide block 33 is arranged at the bottom end of the outer wall of the mounting column 31, so that when the mounting column 31 is extruded, the guide block 33 can extrude the upper surface of the spiral groove 42 along with the guide block 33, and the guide block 33 can move along the groove opening direction of the spiral groove 42, but because the mounting column 31 is vertically extruded, the guide block 33 on the mounting column 31 also vertically moves, and further, the rotating sleeve 41 can rotate on the outer wall of the mounting column 31;

the limiting part 4 further comprises a limiting sleeve 43 sleeved on the outer wall of the rotating sleeve 41, and as the outer surface of the rotating sleeve 41 is provided with internal threads, the inner surface of the limiting sleeve 43 is provided with external threads; rotating sleeve 41 is threaded connection with stop collar 43, therefore, when rotating sleeve 41 at rotatory in-process, stop collar 43 is connected with spacing hole 13, and then can not follow rotating sleeve 41 synchronous revolution, but can be under the drive of rotating sleeve 41, be the rotary motion that makes progress, until stop collar 43 supports on the inner wall of spacing hole 13, through the aforesaid, at the in-process of installation axle inner circle 1 with axle outer lane 2, stop collar 43 can rotate the spacing installation of secondary by oneself, make its in-process more stable and convenient at the installation.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-fix slew bearing comprising: the shaft outer ring (1), a plurality of mounting holes (11) which are annularly formed in the top end of the interior of the shaft outer ring (1) at equal intervals, and a plurality of limiting holes (13) which are annularly formed in the bottom end of the interior of the shaft outer ring (1) at equal intervals;

the mounting holes (11) and the limiting holes (13) are concentrically designed and are communicated with each other;

an installation part (3) penetrates through the installation hole (11), a limiting part (4) is sleeved at the bottom end of the outer wall of the installation part (3), and the limiting part (4) is suitable for being inserted into the limiting hole (13); wherein

When the shaft outer ring (1) is placed, the mounting portion (3) can extend out of the mounting hole (11), so that the limiting portion (4) can abut against the bottom end face of the limiting hole (13).

2. A fast-fixing slewing bearing according to claim 1,

the mounting part (3) comprises a mounting column (31) penetrating through the mounting hole (11), a lantern ring (32) arranged on the mounting column (31) and wound on the top end of the outer wall of the mounting column (31); wherein

Placing the outer shaft ring (1), the collar (32) being able to protrude from the mounting hole (11).

3. A fast-fixing slewing bearing according to claim 2,

a sealing ring (12) is annularly arranged at the edge position of the opening of the mounting hole (11);

the sealing ring (12) and the collar (32) are mutually matched; wherein

After the collar (32) extends out of the mounting hole (11), the collar (32) can wrap the sealing ring (12) to prevent dust from entering the mounting hole (11).

4. A fast-fixing slewing bearing according to claim 3,

the mounting part (3) further comprises a guide block (33) arranged at the bottom end of the outer wall of the mounting column (31);

the limiting part (4) comprises a rotating sleeve (41) sleeved at the bottom end of the outer wall of the mounting column (31) and a spiral groove (42) formed in the inner wall of the rotating sleeve (41), and the guide block (33) is suitable for extending into the spiral groove (42); wherein

When the mounting column (31) extends out of the mounting hole (11), the guide block (33) can slide along the spiral groove (42) so that the rotating sleeve (41) can rotate on the mounting column (31).

5. A fast-fixing slewing bearing according to claim 4,

the limiting part (4) also comprises a limiting sleeve (43) sleeved on the outer wall of the rotating sleeve (41); wherein

When the rotating sleeve (41) rotates on the mounting column (31), the limiting sleeve (43) can ascend on the outer wall of the rotating sleeve (41), so that the limiting sleeve (43) can abut against the bottom end face of the limiting hole (13).

6. A fast-fixing slewing bearing according to claim 5,

the outer surface of the rotating sleeve (41) is provided with internal threads, and the inner surface of the limiting sleeve (43) is provided with external threads;

the rotating sleeve (41) is in threaded connection with the limiting sleeve (43).

7. A fast-fixing slewing bearing according to claim 6,

the novel bearing is characterized in that a shaft inner ring (2) is arranged on the inner wall of the shaft outer ring (1), and a plurality of balls (5) are annularly arranged between the shaft outer ring (1) and the shaft inner ring (2) at equal intervals.