CN109268394B

CN109268394B - Rotary storage type oil seal bearing

Info

Publication number: CN109268394B
Application number: CN201811340473.0A
Authority: CN
Inventors: 文勤; 黄长青; 马权钱; 金礼
Original assignee: Anhui Huadan Machinery Manufacturing Co ltd
Current assignee: Anhui Huadan Machinery Manufacturing Co ltd
Priority date: 2018-11-12
Filing date: 2018-11-12
Publication date: 2020-04-14
Anticipated expiration: 2038-11-12
Also published as: CN109268394A

Abstract

The invention discloses a rotary containing type oil seal bearing which comprises an outer ring and is characterized in that balls distributed in an axial array mode are arranged in the outer ring, a retainer is arranged on each ball, a rolling ring is arranged in a first inner ring and fixed between the first inner ring and a second inner ring, buckle oil seals are arranged on two sides of the outer ring, a threaded hole is formed in the outer ring, a threaded pin is arranged in the threaded hole, a balance groove is formed in the threaded pin, a balance pin is arranged in the balance groove, a first inclined push block is arranged at the top end of the balance pin, a push block hole which is communicated with the threaded hole and penetrates through the inner ring surface of the outer ring is further formed in the outer ring, a buckle hole is formed in each buckle oil seal, a spring push plate is arranged in each buckle hole, a push head is arranged on each spring push plate, a push rod is arranged on each push rod, a second inclined. The oil seal has strong sealing performance, enhances the dustproof and waterproof functions of the bearing, shares the load of the ball by the rolling ring, and improves the integral load capacity of the bearing.

Description

Rotary storage type oil seal bearing

Technical Field

The invention relates to the field of machinery, in particular to a rotary retractable oil seal bearing.

Background

The bearing is an important part in the modern mechanical equipment. The deep groove ball bearing is the most representative rolling bearing, and compared with other types of bearings with the same size, the deep groove ball bearing has the advantages of small friction coefficient, high limit rotating speed, simple structure, low manufacturing cost, high precision, large size range and multiple forms, and is the most widely applied bearing. It mainly bears radial load, also can bear certain axial load, nevertheless has certain influence to the bearing life-span, and is used for maintaining when high degree of depth drilling to trade oil very inconvenient, and load-carrying capacity is lower, because its leakproofness is poor, the dead circumstances such as card often appear, to this kind of circumstances, provides a rotatory formula oil blanket bearing of accomodating at present, when having improved bearing load, is convenient for maintain to sealing performance is good.

Disclosure of Invention

The invention aims to provide a rotary storage type oil seal bearing which is strong in oil seal tightness, enhances the dustproof and waterproof functions of the bearing, simultaneously shares the load of a ball by a rolling ring, improves the integral load capacity of the bearing, is convenient to maintain and reduces the maintenance times.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a rotatory formula oil blanket bearing of accomodating, includes the outer lane, be equipped with the ball of axial array distribution in the outer lane, and the ball is two rings of array distribution and fixes between outer lane and first inner ring, is equipped with the holder on the ball, is equipped with the rolling ring in the first inner ring, and the rolling ring is fixed between first inner ring and second inner ring, and the outer lane both sides all are equipped with the buckle oil blanket.

Further, the outer ring is provided with a threaded hole, a threaded pin is arranged in the threaded hole, a balance groove is arranged in the threaded pin, a balance pin is arranged in the balance groove, the top end of the balance pin is provided with a first inclined pushing block, a pushing block hole which is communicated with the threaded hole and penetrates through the inner ring surface of the outer ring is further arranged in the outer ring, a buckle hole is formed in the buckle oil seal, a spring pushing plate is arranged in the buckle hole, a pushing head is arranged on the spring pushing plate, a pushing rod is arranged on the pushing head, a second inclined pushing block is arranged on the pushing block hole, the first inclined pushing block pushes the second inclined pushing block forwards when the threaded pin is rotated, meanwhile, the first inclined pushing block pushes the second inclined pushing block, the pushing head is pressed into the buckle hole, the buckle oil seal is fixed on the outer ring, and when the threaded pin is taken out in a rotating mode, the spring pushing plate pushes the pushing head upwards to enter the.

Further, when the threaded pin is screwed into the threaded hole by rotating the threaded pin, the balance pin keeps the first inclined pushing block inserted into the inner hole horizontally and does not rotate along with the threaded pin.

Furthermore, the first inner ring is provided with ball grooves distributed in an array manner, a sliding groove is arranged in the first inner ring, an annular convex strip is fixed in the sliding groove and arranged on the rolling ring, and circular convex strips distributed in an array manner are arranged in the rolling ring.

Furthermore, a second inner ring is arranged in the rolling ring, circular convex strips distributed in an array mode in the rolling ring are fixed in arc-shaped sliding grooves distributed in an array mode in the second inner ring, containing grooves distributed in an axial array mode are formed in the second inner ring, a positioning hole is formed in the center position of the second inner ring, a first clamping groove and a second clamping groove distributed in an axial array mode are formed in the containing grooves, straight oil holes penetrating through the second inner ring are formed in the containing grooves, and oblique oil holes communicated with the arc-shaped sliding grooves are formed in the straight oil holes.

Furthermore, all be equipped with the seal piece on the groove of accomodating, be equipped with on the seal piece with first draw-in groove and second draw-in groove matched with first fixture block and second fixture block.

Further, the number of the balls is at least 20.

The invention has the beneficial effects that:

1. according to the invention, lubricating oil is not required to be frequently disassembled and added, the integral oil seal is directly buckled on the outer ring, the oil seal has strong sealing property, the dustproof and waterproof functions of the bearing are enhanced, and the buckled oil seal is convenient to install and disassemble;

2. the rolling ring shares the load of the ball, so that the integral load capacity of the bearing is further improved, the service life of the bearing is prolonged, and the increase of the service life of the bearing is beneficial to reducing the cost;

3. the invention has convenient maintenance, quick maintenance and lubricating oil addition, no need of disassembling the whole bearing and adding lubricating oil, long maintenance period and reduced maintenance times.

Drawings

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

FIG. 1 is a schematic view of a rotary housing type oil seal bearing according to the present invention;

FIG. 2 is a front view of a rotary housing oil seal bearing of the present invention;

FIG. 3 is a sectional view A-A of the front view of the rotary housing type oil seal bearing of the present invention;

FIG. 4 is an enlarged schematic structural view of the front view A-A and the cross-sectional view B of the rotary housing type oil seal bearing of the present invention;

FIG. 5 is a schematic view of a first inner ring structure of the present invention;

FIG. 6 is a schematic view of the rolling ring configuration of the present invention;

FIG. 7 is a schematic view of a second inner ring structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

The utility model provides a rotatory formula oil blanket bearing of accomodating, includes outer lane 1, as shown in figure 1, the ball 2 of axial array distribution in the outer lane 1, ball 2 is 20 at least, and ball 2 is two rings of array distribution and fixes between outer lane 1 and first inner ring 4, is equipped with holder 3 on the ball 2, is equipped with rolling ring 5 in the first inner ring 4, and rolling ring 5 fixes between first inner ring 4 and second inner ring 6, and 1 both sides in outer lane all are equipped with buckle oil blanket 7.

The outer ring 1 is provided with a threaded hole 11, a threaded pin 16 is arranged in the threaded hole 11, as shown in fig. 4, a balance groove 161 is arranged in the threaded pin 16, a balance pin 15 is arranged in the balance groove 161, a first inclined push block 14 is arranged at the top end of the balance pin 15, when the threaded pin 16 is rotated to screw the threaded pin 16 into the threaded hole 11, the balance pin 15 keeps the first inclined push block 14 horizontally inserted into the inner hole 13 and does not rotate along with the threaded pin 16, the outer ring 1 is also provided with a push block hole 17 which is communicated with the threaded hole 11 and penetrates through the inner ring surface of the outer ring 1, a buckle hole 71 is arranged in the buckle oil seal 7, a spring push plate 72 is arranged in the buckle hole 71, a push head 73 is arranged on the spring push plate 72, a push rod 74 is arranged on the push head 73, a second inclined push block 75 is arranged on the push block hole 17, when the threaded pin 16 is rotated, the first inclined push block 14 pushes the second inclined push, when the pushing head 73 is pressed into the buckling hole 71 to fix the buckling oil seal 7 on the outer ring 1 and the threaded pin 16 is rotated and taken out, the spring pushing plate 72 pushes up the pushing head 73 to enter the pushing block hole 17 due to the fact that the first inclined pushing block 14 does not apply downward force to the second inclined pushing block 75, and the buckling oil seal 7 is taken out at the moment.

The first inner ring 4 is provided with ball grooves 41 distributed in an array manner, the first inner ring 4 is internally provided with a sliding groove 42, the sliding groove 42 is internally fixed with an annular convex strip 51 arranged on the rolling ring 5, and the rolling ring 5 is internally provided with circular convex strips 52 distributed in an array manner.

The rolling ring 5 is internally provided with a second inner ring 6, as shown in fig. 7, circular convex strips 52 distributed in an array manner in the rolling ring 5 are fixed in arc-shaped sliding grooves 66 distributed in an array manner in the second inner ring 6, the second inner ring 6 is provided with accommodating grooves 61 distributed in an axial array manner, a positioning hole 62 is arranged at the center position of the second inner ring 6, the accommodating grooves 61 are provided with first clamping grooves 63 and second clamping grooves 64 distributed in an axial array manner, the accommodating grooves 61 are all provided with sealing blocks 65, the sealing blocks 65 are provided with first clamping blocks 651 and second clamping blocks 652 matched with the first clamping grooves 63 and the second clamping grooves 64, the accommodating grooves 61 are internally provided with straight oil holes 67 penetrating through the second inner ring 6, and the straight oil holes 67 are internally provided with oblique oil holes 671 communicated with the arc-shaped sliding grooves 66. The lubricating oil is charged into the storage groove 61, the lubricating oil is thrown into the straight oil hole 67 by the centrifugal force generated when the bearing rotates, the lubricating oil cannot be discharged through the straight oil hole 67 because the second inner ring 6 is fixed in the rolling ring 5, and the lubricating oil in the straight oil hole 67 is discharged into the arc-shaped sliding groove 66 through the inclined oil hole 671 for lubrication.

When the automatic lubricating device is used, lubricating oil is filled into the containing groove 61, the lubricating oil is sequentially filled into each part of the bearing, the buckle oil seal 7 is buckled, and the bearing is filled into the driving shaft for use.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A rotary storage type oil seal bearing comprises an outer ring (1), and is characterized in that balls (2) distributed in an axial array manner are arranged in the outer ring (1), two circles of the balls (2) distributed in an array manner are fixed between the outer ring (1) and a first inner ring (4), a retainer (3) is arranged on the balls (2), a rolling ring (5) is arranged in the first inner ring (4), the rolling ring (5) is fixed between the first inner ring (4) and a second inner ring (6), and buckle oil seals (7) are arranged on two sides of the outer ring (1);

the outer ring (1) is provided with a threaded hole (11), a threaded pin (16) is arranged in the threaded hole (11), a balance groove (161) is arranged in the threaded pin (16), a balance pin (15) is arranged in the balance groove (161), the top end of the balance pin (15) is provided with a first inclined push block (14), a push block hole (17) which is communicated with the threaded hole (11) and penetrates through the inner ring surface of the outer ring (1) is also arranged in the outer ring (1), a buckle hole (71) is arranged in a buckle oil seal (7), a spring push plate (72) is arranged in the buckle hole (71), a push head (73) is arranged on the spring push plate (72), a push rod (74) is arranged on the push head (73), a second inclined push block (75) is arranged on the push rod (74), the second inclined push block (75) is arranged in the push block hole (17), when the threaded pin (16) is rotated, the first inclined push block (14) pushes the second inclined push block (75) forwards, the push head (73) is pressed into the buckling hole (71), the buckling oil seal (7) is fixed on the outer ring (1), and when the threaded pin (16) is taken out in a rotating mode, the spring push plate (72) pushes up the push head (73) to enter the push block hole (17) due to the fact that no first inclined push block (14) applies downward force to the second inclined push block (75).

2. A rotary housing oil-sealed bearing according to claim 1, wherein the balance pin (15) keeps the first angular contact block (14) inserted horizontally into the inner bore (13) without rotating with the threaded pin (16) when the threaded pin (16) is rotated to screw the threaded pin (16) into the threaded bore (11).

3. The rotary storage type oil-sealed bearing according to claim 1, wherein the first inner ring (4) is provided with ball grooves (41) distributed in an array, the first inner ring (4) is provided with a sliding groove (42), the sliding groove (42) is internally provided with an annular convex strip (51) fixed on the rolling ring (5), and the rolling ring (5) is provided with a circular convex strip (52) distributed in an array.

4. The rotary storage type oil-sealed bearing according to claim 1, wherein a second inner ring (6) is arranged in the rolling ring (5), circular raised strips (52) distributed in an array are arranged in the rolling ring (5) and fixed in arc-shaped sliding grooves (66) distributed in an array and arranged on the second inner ring (6), the second inner ring (6) is provided with accommodating grooves (61) distributed in an axial array, a positioning hole (62) is arranged at the center of the second inner ring (6), the accommodating grooves (61) are provided with first clamping grooves (63) and second clamping grooves (64) distributed in an axial array, straight oil holes (67) penetrating through the second inner ring (6) are arranged in the accommodating grooves (61), and oblique oil holes (671) communicated with the arc-shaped sliding grooves (66) are arranged in the straight oil holes (67).

5. The rotary storage type oil-sealed bearing according to claim 4, wherein the storage grooves (61) are provided with sealing blocks (65), and the sealing blocks (65) are provided with first clamping blocks (651) and second clamping blocks (652) which are matched with the first clamping grooves (63) and the second clamping grooves (64).

6. A rotary housing oil-sealed bearing according to claim 1, wherein the number of balls (2) is at least 20.