CN217814537U - Deep groove ball bearing - Google Patents

Abstract

The utility model provides a deep groove ball bearing belongs to bearing technical field. The problem that the existing bearing is likely to deviate to cause sealing failure in operation is solved. The deep groove ball bearing comprises an outer ring, an inner ring, balls, a retainer and a sealing ring, wherein two end faces of the inner ring are lower than two end faces of the corresponding outer ring, annular grooves which are axially inwards recessed and used for assembling the sealing ring are formed in the two end faces of the inner ring, the outer ring is located in the corresponding annular grooves and is connected with the corresponding annular grooves, the position of the sealing ring is limited, and the sealing ring is pressed into a limiting unit which is abutted against the inner ring. The utility model has the advantages of prevent that its operation skew and improve the leakproofness.

Description

Deep groove ball bearing

Technical Field

The utility model belongs to the technical field of the bearing, a deep groove ball bearing is related to.

Background

Deep groove ball bearings are one of the most widely used rolling bearings. It features small friction resistance and high rotation speed, and can be used for parts bearing radial load or combined load acted simultaneously in radial and axial directions, and also for parts bearing axial load, such as small power motor, automobile and tractor gear box, machine tool gear box, general machine and tool.

Wherein the sealing washer is the indispensable component part of bearing for prevent the entering of impurity, thereby reach the effect of reducing wear, the sealing washer of current bearing generally comprises skeleton and rubber ring, on corresponding inner circle of both ends embedding through the rubber ring and the outer lane, in the long-term operation in-process, probably there is certain offset between outer lane and the inner circle in the bearing, lead to the stability of sealing washer not high, probably break away from the bearing, thereby cause sealed inefficacy, and influence subsequent life.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a prevent that interior outer lane skew and improve the leakproofness and solve the deep groove ball bearing of above-mentioned problem.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a deep groove ball bearing, includes outer lane, inner circle, ball, holder and sealing ring, its characterized in that, the both ends face of inner circle all be less than the both ends face of corresponding outer lane, the outer lane be located and all seted up the annular channel that the axial is inwards sunken and supply above-mentioned sealing ring assembly on the both ends face of inboard, the outer lane is located corresponding annular channel department and is provided with rather than being connected, and is used for restricting the sealing ring position to suppress the spacing unit that inner circle department and inner circle contradicted with the sealing ring.

In a foretell deep groove ball bearing, the spacing unit constitute by spacing ring and collar, the spacing ring constitute by plane portion and the rake that forms with plane portion an organic whole setting, the collar set up in the outside of corresponding spacing ring, this collar is connected with the outer lane through a plurality of double-screw bolt.

In the deep groove ball bearing, two end faces of the inner ring, which are positioned at the outer edge, are provided with interference grooves for interference assembly of the sealing ring and the limiting ring.

In the deep groove ball bearing, the limiting ring is provided with a sealing protrusion which protrudes outwards in the axial direction and improves the sealing performance of a joint on the inner end surface of the inclined part.

In a aforementioned deep groove ball bearing, the inner circle be located corresponding conflict inslot and be provided with the unit of preventing partially that links firmly mutually with the inner circle and also be used for restricting above-mentioned spacing ring position, this unit of preventing partially comprises deviation prevention ring and a plurality of double-screw bolt, the outer wall of deviation prevention ring on set up with above-mentioned rake inclined plane inconsistent complex inclined plane, deviation prevention ring be provided with the cover between the rake and locate on the conflict groove and be used for strengthening the sealing washer of leakproofness.

Compared with the prior art, the deep groove ball bearing has the following advantages:

1. the outer ring is located and all offered the annular groove that the axial is inwards sunken and supply above-mentioned sealing ring assembly on the both ends face of inboard, and the outer ring is located corresponding annular groove department and is provided with rather than being connected, and is used for restricting the sealing ring position to with the spacing unit of sealing ring suppression inner circle department and inner circle conflict, above-mentioned structure setting makes the sealing ring remove the skeleton, also guarantees its leakproofness after assembling, prevents simultaneously that the skew phenomenon from appearing in its operation.

Drawings

Fig. 1 is a schematic sectional view of the deep groove ball bearing.

Fig. 2 is an enlarged view of circle a in fig. 1 in the present deep groove ball bearing.

In the figure, 1, outer ring; 2. an inner ring; 3. a seal ring; 4. an annular groove; 5. a limiting ring; 6. assembling a ring; 7. a contact groove; 8. sealing the protrusion; 9. and (4) an anti-deviation ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the deep groove ball bearing comprises an outer ring 1, an inner ring 2, balls, a retainer and a sealing ring 3, wherein the height of the inner ring 2 is lower than that of the outer ring 1, after the outer ring 1 and the inner ring 2 are assembled, both end faces of the inner ring 2 are lower than both end faces of the corresponding outer ring 1, until a space is reserved between both end faces of the inner ring 2 and both end faces of the corresponding outer ring 1, both end faces of the outer ring 1 positioned on the inner side are provided with annular grooves 4 which are recessed axially and used for assembling the sealing ring 3, the outer ring 1 positioned on the corresponding annular grooves 4 is provided with a limiting unit which is connected with the annular grooves and used for limiting the position of the sealing ring 3 and pressing the sealing ring 3 to the inner ring 2 to abut against the inner ring 2, the limiting unit is composed of a limiting ring 5 and an assembling ring 6, the limiting ring 5 is composed of a plane part and an inclined part formed by integrating the plane part and the plane part, the sealing ring 3 is pressed down to the inner ring 2 through the inclined part and is abutted against the inner ring 2, the assembling ring 6 is arranged at the outer side of the corresponding limit ring 5, the assembling ring 6 is connected with the outer ring 1 through a plurality of studs, and the assembling ring 6 presses the plane part in the limit ring 5 to prevent the plane part from offsetting and dislocation, the annular groove 4 positioned at the outer ring 1 is arranged in a two-stage ladder structure, so that the assembling ring 6 and the limit ring 5 are respectively arranged on two ladder surfaces in the annular groove 4, the inner ring 2 is positioned in the corresponding abutting groove 7 and is provided with an anti-deviation unit which is fixedly connected with the inner ring 2 and is also used for limiting the inclined part position in the limit ring 5, the anti-deviation unit consists of an anti-deviation ring 9 and a plurality of studs, the anti-deviation ring 9 is abutted against the inner ring 2 through a plurality of studs, the groove 7 is also arranged in a two-stage ladder structure, the anti-deviation ring 9 is arranged on the outer ladder surface of the abutting groove 7, and make above-mentioned rake and conflict groove 7's interior ladder face inconsistent, offer the inclined plane of inconsistent complex with above-mentioned rake inclined plane on the outer wall of anti-eccentric ring 9, anti-eccentric ring 9 can set up the gasket between the rake and guarantee the leakproofness of junction and reduce the wearing and tearing when moving, anti-eccentric ring 9 is provided with the sealing washer that the cover was located in inner circle 2 on the conflict groove 7 and was used for strengthening the leakproofness between the rake.

In order to strengthen the sealing performance of the joint, the inner ring 2 is provided with a contact groove 7 for the contact assembly of the inclined part between the sealing ring 3 and the limit ring 5 on the two end faces of the outer edge, and the limit ring 5 is provided with a sealing protrusion 8 which protrudes outwards in the axial direction and increases the contact area of the inclined part and the inner ring 2 contact groove 7 on the inner end face of the inner edge of the inclined part, thereby improving the sealing performance of the joint.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms outer ring 1, inner ring 2, sealing ring 3, annular groove 4, stop ring 5, mounting ring 6, interference groove 7, sealing projection 8, anti-deflection ring 9 etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (5)

1. The utility model provides a deep groove ball bearing, includes outer lane (1), inner circle (2), ball, holder and sealing ring (3), its characterized in that, the both ends face of inner circle (2) all be less than the both ends face of corresponding outer lane (1), outer lane (1) be located all offer the annular channel (4) that the axial is inwards sunken and supply above-mentioned sealing ring (3) assembly on the both ends face of inboard, outer lane (1) are located corresponding annular channel (4) and locate to be provided with rather than being connected, and are used for restricting sealing ring (3) position to suppress inner circle (2) with sealing ring (3) and locate the spacing unit of contradicting with inner circle (2).

2. A deep groove ball bearing according to claim 1, characterized in that the stop element consists of a stop ring (5) and an assembly ring (6), the stop ring (5) consists of a planar portion and an inclined portion integrally formed with the planar portion, the assembly ring (6) is arranged outside the corresponding stop ring (5), and the assembly ring (6) is connected with the outer ring (1) by a plurality of studs.

3. The deep groove ball bearing as claimed in claim 2, wherein two end faces of the inner ring (2) at the outer edge are provided with interference grooves (7) for interference assembly of the sealing ring (3) and the limiting ring (5).

4. A deep groove ball bearing according to claim 3, characterized in that the inner end surface of the inclined part of the retainer ring (5) is provided with sealing protrusions (8) which protrude axially outwards and improve the sealing of the joint.

5. The deep groove ball bearing according to claim 4, wherein the inner ring (2) is provided with a deviation prevention unit located in the corresponding interference groove (7), the deviation prevention unit is fixedly connected with the inner ring (2) and is also used for limiting the position of the limit ring (5), the deviation prevention unit comprises a deviation prevention ring (9) and a plurality of studs, an inclined surface which is in interference fit with the inclined surface of the inclined portion is arranged on the outer wall of the deviation prevention ring (9), and a sealing ring which is sleeved on the interference groove (7) and is used for enhancing sealing performance is arranged between the inclined portions of the deviation prevention ring (9).

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