CN213929159U

CN213929159U - Novel sealed angular contact ball bearing

Info

Publication number: CN213929159U
Application number: CN202022538316.XU
Authority: CN
Inventors: 王彦成
Original assignee: LUOYANG DERUN PRECISION MACHINE TOOL BEARING CO Ltd
Current assignee: LUOYANG DERUN PRECISION MACHINE TOOL BEARING CO Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-08-10
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to a novel sealed angular contact ball bearing, which comprises an inner ring, an outer ring, a steel ball, a sealing device and a retainer; the sealing device is arranged on two sides of the inner ring and the outer ring and comprises a sealing ring and a sealing plate, first concave rings are respectively arranged on end faces of two sides of the inner ring, second concave rings are respectively arranged on end faces of two sides of the outer ring, the inner side face of the outer circle of the sealing plate is tightly attached to the surface of the second concave ring, the inner side face of the inner circle of the sealing plate is tightly attached to the surface of the first concave ring, two sides of a retainer on the inner circle face of the outer ring are respectively provided with a sealing groove, the outer circle of the sealing ring is arranged in the sealing groove, and the inner circular top is pressed on the outer circle face of the inner ring. The utility model provides a sealing device passes through the double-deck sealing that sealing washer and closing plate realized the bearing both sides to inside separation outside debris of bearing and dust got into the bearing better, improved the holistic leakproofness of sealing member.

Description

Novel sealed angular contact ball bearing

Technical Field

The utility model belongs to the technical field of the bearing, especially, relate to a novel sealed angular contact ball bearing.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. With the development of the technology, the use occasions of the bearing are wider and wider, and the requirements are more and more specialized; as with some bearings having sealing requirements, it is desirable that the bearings have corresponding sealing structures to meet the requirements.

Chinese patent CN203939877U discloses a double-sided sealed mixed ceramic angular contact ball bearing, including lasso and rolling element, the lasso includes inner circle and outer lane, is equipped with double-sided sealing washer between this inner circle and the outer lane, and there is the clearance in this double-sided sealing washer's soft inner lip and inner circle slope surface, and this clearance is 0.05 ~ 0.10mm, and in this double-sided sealing washer's external diameter impressed the outer lane seal groove, the rolling element sets up between inner circle and outer lane, and this rolling element makes up an organic whole through the holder with the inner circle.

Chinese patent CN111022487A discloses a sealed bearing including a bearing outer ring, a bearing inner ring, a retainer and a plurality of rolling elements, the bearing outer ring is sleeved on the bearing inner ring, the retainer is disposed between the bearing outer ring and the bearing inner ring, a plurality of pockets are processed on the retainer along the radial direction, the plurality of rolling elements are disposed in the pockets of the retainer, an annular oil groove of the retainer is processed on the surface of each pocket on the outer diameter of the retainer opposite to the inner diameter of the bearing outer ring, an annular oil groove of the bearing outer ring is processed on the inner diameter of the bearing outer ring corresponding to the annular oil groove of the retainer, and the diameter of the annular oil groove of the bearing outer ring on the bearing outer ring is smaller than that of the annular oil groove of the retainer on the retainer.

Although the sealing bearings in the prior art all adopt a double-sided sealing structure, each side is sealed by a single-layer sealing ring, and the single-layer sealing ring is poor in sealing performance and difficult to achieve a sealing effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to overcome the problem of poor sealing effect of the single-layer sealing ring in the prior art and provide a novel sealed angular contact ball bearing.

In order to achieve the purpose, the utility model provides a technical scheme does:

the utility model provides a novel sealed angular contact ball bearing, which comprises an inner ring, an outer ring, steel balls, a sealing device and a retainer positioned between the inner ring and the outer ring and used for keeping the space between the steel balls, wherein the inner ring surface of the outer ring and the outer ring surface of the inner ring are respectively provided with a channel for the steel balls to roll; the sealing device is arranged on two sides of the inner ring and the outer ring and comprises a sealing ring and a sealing plate, first concave rings are respectively arranged on end faces of two sides of the inner ring, second concave rings are respectively arranged on end faces of two sides of the outer ring, the inner side face of the outer circle of the sealing plate is tightly attached to the surface of the second concave ring, the inner side face of the inner circle of the sealing plate is tightly attached to the surface of the first concave ring, two sides of a retainer on the inner circle face of the outer ring are respectively provided with a sealing groove, the outer circle of the sealing ring is arranged in the sealing groove, the inner circular top is pressed on the outer circle face of the inner ring, and the sealing ring is connected with the sealing plate.

Preferably, the second concave ring is provided with a plurality of grooves, the sealing plate is correspondingly provided with a plurality of bulges, and the bulges are arranged in the grooves.

Preferably, the sealing ring and the sealing plate are of an integrated structure, and the outer side surface of the sealing ring is connected with the inner side surface of the sealing plate through a connecting column.

Preferably, an embedded skeleton is arranged in the sealing ring.

Preferably, the outer side surface of the sealing plate is flush with the outer side end surfaces of the inner ring and the outer ring

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

1. the utility model provides a sealing device passes through the double-deck sealing that sealing washer and closing plate realized the bearing both sides to inside separation outside debris of bearing and dust got into the bearing better, improved the holistic leakproofness of sealing member.

2. The utility model provides a sealing device overall structure is simple, simple to operate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the sealing device of the present invention;

description of the labels in the schematic:

1-inner ring; 2-outer ring; 3-steel ball; 4-sealing means; 5-a cage; 6-a channel; 7-sealing ring; 8-closing the plate; 9-a first female ring; 10-a second concave ring; 11-a seal groove; 12-a connecting column; 13-a groove; 14-projection.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the present embodiment relates to a novel sealed angular contact ball bearing, which includes an inner ring 1, an outer ring 2, steel balls 3, a sealing device 4, and a retainer 5 located between the inner ring 1 and the outer ring 2 for keeping the distance between the steel balls 3, wherein a groove 6 for rolling the steel balls is respectively arranged on the inner ring surface of the outer ring 2 and the outer ring surface of the inner ring 1; the sealing device 4 is arranged on two sides of the inner ring 1 and the outer ring 2, the sealing device 4 comprises a sealing ring 7 and a sealing plate 8, the end surfaces of two sides of the inner ring 1 are respectively provided with a first concave ring 9, the end surfaces of two sides of the outer ring 2 are respectively provided with a second concave ring 10, the inner side surface of the outer circle of the sealing plate 8 is tightly attached to the surface of the second concave ring 10, the inner side surface of the inner circle of the sealing plate 8 is tightly attached to the surface of the first concave ring 9, and the outer side surface of the sealing plate 8 is flush with the end surfaces of the outer sides of the inner ring 1 and the outer ring 2; the two sides of the retainer 5 on the inner ring surface of the outer ring 2 are respectively provided with a seal groove 11, the outer circle of the seal ring 7 is arranged in the seal groove 11, the inner dome is pressed on the outer ring surface of the inner ring 1, the seal ring 7 and the seal plate 8 are of an integrated structure, and the outer side surface of the seal ring 7 is connected with the inner side surface of the seal plate 8 through a connecting column 12.

The surface of the second concave ring 10 is provided with a plurality of grooves 13, the sealing plate 8 is correspondingly provided with a plurality of protrusions 14, the protrusions 14 are arranged in the grooves 13, the sealing ring 7 is made of rubber, and an embedded framework is arranged in the sealing ring 7.

The utility model discloses when the installation, place the ball bearing level on the mesa, a side end face of ball bearing up, in filling in the space between inner circle 1 and the outer lane 2 with sealing device 4's sealing washer 7, inwards press down closing plate 8, make in sealing washer 7's excircle embedding seal groove 11, the interior calotte of sealing washer 7 is pressed on the outer lane face of inner circle 1, closing plate 8 gets into in first concave ring 9 and the concave ring 10 of second simultaneously, protruding 14 card on the closing plate 8 is gone into in the recess 21 of 2 terminal surfaces in outer lane, closing plate 8's lateral surface and inner circle 1, the terminal surface parallel and level of outer lane 2, accomplish the seal installation of ball bearing one side, the installation of opposite side is the same with it.

The utility model provides a closing plate 8 prevents in debris and dust get into the space between inner circle 1 and the outer lane 2 as first sealing layer, and sealing washer 7 is as second sealing layer, further prevents that debris and dust from getting into the space at steel ball 3 place.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is merely an embodiment of the present invention, and the actual structure is not limited thereto. Therefore, those skilled in the art should understand that they can easily and effectively implement the present invention without departing from the spirit and scope of the present invention.

Claims

1. A novel sealed angular contact ball bearing comprises an inner ring, an outer ring, steel balls, a sealing device and a retainer positioned between the inner ring and the outer ring and used for keeping the space between the steel balls, wherein the inner ring surface of the outer ring and the outer ring surface of the inner ring are respectively provided with a channel for the steel balls to roll; the sealing device is characterized in that the sealing device is arranged on two sides of the inner ring and the outer ring, the sealing device comprises a sealing ring and a sealing plate, first concave rings are respectively arranged on end faces of two sides of the inner ring, second concave rings are respectively arranged on end faces of two sides of the outer ring, the inner side face of the outer circle of the sealing plate is tightly attached to the surface of the second concave ring, the inner side face of the inner circle of the sealing plate is tightly attached to the surface of the first concave ring, sealing grooves are respectively arranged on two sides of a retainer on the inner circle face of the outer ring, the outer circle of the sealing ring is arranged in the sealing grooves, and the inner circular.

2. The novel sealed angular contact ball bearing according to claim 1, wherein the second concave ring is provided with a plurality of grooves, the sealing plate is correspondingly provided with a plurality of protrusions, and the protrusions are arranged in the grooves.

3. The novel sealed angular contact ball bearing according to claim 1, wherein the sealing ring and the sealing plate are of an integrated structure, and the outer side surface of the sealing ring is connected with the inner side surface of the sealing plate through a connecting column.

4. The novel sealed angular contact ball bearing according to claim 1, wherein an embedded skeleton is provided in the sealing ring.

5. The novel sealed angular contact ball bearing according to claim 1, wherein the outer side surface of the sealing plate is flush with the outer side end surfaces of the inner ring and the outer ring.