CN220396296U

CN220396296U - Dustproof conical bearing

Info

Publication number: CN220396296U
Application number: CN202321602050.8U
Authority: CN
Inventors: 傅利祥
Original assignee: Ningbo Shenhe Bearing Co ltd
Current assignee: Ningbo Shenhe Bearing Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-01-26
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a dustproof conical bearing, which comprises an inner ring, an outer ring, conical rollers and a retainer, wherein the inner ring is connected with the outer ring through a sealing ring, the outer ring is provided with a mounting groove, the sealing ring consists of a mounting end, an elastic section and a contact end, the mounting end is arranged in the mounting groove, the elastic section is used for connecting the mounting end with the contact end, and the contact end is contacted with the inner ring. The dustproof conical bearing is compact in structure, ingenious in design, capable of guaranteeing tightness of the inside of the bearing through elastic contact of the sealing ring, capable of avoiding dust from entering a gap between the inner ring and the outer ring effectively and capable of prolonging service life of the conical bearing, and meanwhile normal operation of the bearing can not be affected.

Description

Dustproof conical bearing

Technical Field

The utility model relates to bearing technology, in particular to a dustproof conical bearing.

Background

The tapered roller bearing mainly bears radial and axial combined loads, and is widely used in the industries of automobiles, rolling mills, mines, metallurgy, plastic machinery and the like. Because the tapered roller bearing is widely applied, the tapered roller bearing is required to face the severe working environment, at present, the domestic patent generally only has one sealing structure, and the tapered roller bearing is often unable to effectively face the invasion and aggregation of external impurities such as large-particle dust, iron scale and the like near the sealing structure, thereby reducing the service life of the bearing, improving the use cost of users and reducing the consumption of lubricant.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a dustproof conical bearing.

The technical scheme of the utility model is realized as follows:

the utility model provides a dustproof conical bearing, includes inner circle, outer lane, tapered roller and holder, its characterized in that, connect through a sealing washer between inner circle and the outer lane, be equipped with a mounting groove on the outer lane, the sealing washer comprises installation end, elastic segment and contact end, the installation end sets up in the mounting groove, the elastic segment is connected the installation end with the contact end, contact end and inner circle contact.

In such a dust-proof conical bearing of the present utility model, the contact end is offset to one side of the mounting end.

In the dustproof conical bearing, symmetrical limiting chambers are arranged in the mounting grooves, and blocking parts which extend downwards obliquely are arranged on the mounting ends and are positioned in the limiting chambers.

In the dustproof conical bearing of the utility model, the outer ring of the elastic section is connected with the mounting end through the first connecting section, and the inner ring is connected with the contact end through the second connecting section.

In the dustproof conical bearing of the utility model, an annular groove is arranged on the inner ring, and an annular protrusion positioned in the annular groove is arranged on the contact end.

In such a dust-proof conical bearing of the utility model, the inner diameter of the inner ring is smaller than the inner diameter of the contact end.

The dustproof conical bearing has the following beneficial effects: the dustproof conical bearing is compact in structure, ingenious in design, capable of guaranteeing tightness of the inside of the bearing through elastic contact of the sealing ring, capable of avoiding dust from entering a gap between the inner ring and the outer ring effectively and capable of prolonging service life of the conical bearing, and meanwhile normal operation of the bearing can not be affected.

Drawings

FIG. 1 is a schematic view of a dust-proof conical bearing of the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of the seal ring in FIG. 3;

fig. 6 is a cross-sectional view of fig. 5.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1 to 6, the dust-proof conical bearing of the present utility model includes an inner ring 1, an outer ring 2, tapered rollers 3, and a cage 4. The inner ring 1 and the outer ring 2 are connected through a sealing ring 5, and the clearance between the inner ring 1 and the outer ring 2 can be isolated from the outside through the sealing ring 5, so that external dust is prevented from entering the clearance between the outer ring 2 and the inner ring 1.

The outer ring 2 is provided with a mounting groove 6, a symmetrical limiting chamber 7 is arranged in the mounting groove 6, and the limiting chamber 7 consists of an inclined a surface and a b surface perpendicular to the a surface. The a-plane cooperates with the blocking portion 15.

The sealing ring 5 is composed of a mounting end 8, an elastic section 9 and a contact end 10, wherein the mounting end 8 is arranged in the mounting groove 6, the elastic section 9 connects the mounting end 8 with the contact end 10, and the contact end 10 is contacted with the inner ring 1.

The contact end 10 is offset to one side of the mounting end 8, and because of the existence of the elastic section 9, the contact end 10 is not positioned in the mounting end 8, but is offset to one side, so that the distance between the contact end 10 and the mounting end 8 can be reduced when the elastic section 9 is stressed to apply pressure to the mounting end 8.

When the sealing ring 5 is in a natural state, the distance between the c surface and the d surface is H1, and after the sealing ring 5 is installed on the bearing, the distance between the c surface and the d surface is H2, and H1 is more than H2.

The mounting end 8 is provided with a blocking portion 15 extending obliquely downwards, which blocking portion 15 is located in the confinement chamber 7. The blocking part 15 is downwardly and obliquely extended, so that the installation can be facilitated when the installation end 8 is installed, and the sealing ring 5 can be stably installed by being matched with the limiting chamber 7 and the blocking part 15 when the installation end 8 needs to be taken out from the installation groove 6, and the sealing ring is not easy to take out.

The outer ring of the elastic section 9 is connected to the mounting end 8 via a first connecting section 11 and the inner ring is connected to the contact end 10 via a second connecting section 12. The inner diameter of the inner ring 1 is smaller than the inner diameter of the contact end 10, so that the influence on the shaft installation when the shaft is installed to the inner ring 1 can be avoided.

An annular groove 13 is arranged on the inner ring 1, an annular protrusion 14 positioned in the annular groove 13 is arranged on the contact end 10, and the contact between the upper surface and the lower surface of the annular protrusion 14 and the inner ring 1 can be formed, so that the contact end 10 is stressed to be in contact with the inner ring 1.

Since the contact end 10 is in elastic force contact with the inner ring 1, the rotation of the inner ring 1 or the outer ring 2 is not affected, and the stable rotation can be achieved.

As shown in fig. 6, before the contact end 10 is mounted, the contact end 10 faces the direction of F2, and after the contact end 10 is mounted, the contact end 10 is forced to move in the direction of F1, and the elastic section 9 is forced to keep the contact end 10 in contact with the inner ring 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. The dustproof conical bearing comprises an inner ring, an outer ring, a conical roller and a retainer, and is characterized in that the inner ring and the outer ring are connected through a sealing ring, the outer ring is provided with a mounting groove, the sealing ring consists of a mounting end, an elastic section and a contact end, the mounting end is arranged in the mounting groove, the elastic section connects the mounting end with the contact end, the contact end is contacted with the inner ring,

the installation groove is internally provided with symmetrical limiting chambers, the installation end is provided with a blocking part extending downwards obliquely, the blocking part is positioned in the limiting chamber,

the outer ring of the elastic section is connected with the mounting end through the first connecting section, the inner ring is connected with the contact end through the second connecting section,

an annular groove is formed in the inner ring, and an annular protrusion located in the annular groove is arranged on the contact end.

2. A dust cone bearing according to claim 1, wherein said contact end is offset to one side of the mounting end.

3. A dust protected conical bearing according to claim 1, wherein the inner diameter of the inner ring is smaller than the inner diameter of the contact end.