CN215521666U

CN215521666U - High leakproofness deep groove ball bearing

Info

Publication number: CN215521666U
Application number: CN202120301606.4U
Authority: CN
Inventors: 蔡洪雷; 潘敏; 何雪红
Original assignee: Wuhe Hongsheng Bearing Co ltd
Current assignee: Wuhe Hongsheng Bearing Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2022-01-14
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a high-sealing deep groove ball bearing which comprises a bearing inner ring, a bearing outer ring, a retainer and a steel ball, wherein first annular grooves are formed in inner walls of two ends of the bearing outer ring, an inner cone ring surface is arranged between the first annular grooves and the inner wall of the bearing outer ring, second annular grooves are formed in outer walls of two ends of the bearing inner ring, outer cone ring surfaces are arranged between the second annular grooves and the outer wall of the bearing inner ring, an annular sealing element is arranged between the bearing inner ring and the bearing outer ring and comprises a first sealing ring, and the first sealing ring is arranged between the first annular grooves and the second annular grooves. The utility model has the advantages that: the high-sealing-performance deep groove ball bearing provided by the utility model has double sealing performance and good sealing effect, and when the sealing performance is reduced, the sealing element is expanded through the expansion head, so that the sealing effect is improved, and the service life of the sealing element is prolonged.

Description

High leakproofness deep groove ball bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a deep groove ball bearing with high sealing performance.

Background

The bearing seal is mainly used for preventing lubricant inside the bearing from leaking outside and preventing external moisture, dust, foreign matters and the like from entering the inside of the bearing, and then the running performance and the service life of the bearing are influenced. The existing sealing element has gradually reduced sealing performance under the long-term abrasion of the bearing outer ring and the bearing inner ring.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a deep groove ball bearing with high sealing performance.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a high leakproofness deep groove ball bearing, including the bearing inner ring, the bearing outer ring, holder and steel ball, the both ends inner wall department of bearing outer ring all is equipped with first annular groove, be equipped with interior conical ring face between the inner wall of first annular groove and bearing outer ring, the both ends outer wall department of bearing inner ring all is equipped with the second ring channel, all be equipped with the outer cone anchor ring between second ring channel and the bearing inner ring outer wall, at the bearing inner ring, be equipped with annular seal between the bearing outer ring, annular seal includes first sealing ring, first sealing ring sets up between first annular groove and second ring channel, the coaxial fixed second sealing ring of first sealing ring one side integral type, the inner wall and the outer wall of second sealing ring are the conical surface, two conical surface one-to-ones and interior conical ring face, the outer cone anchor ring corresponds the setting.

Preferably, one side of the first sealing ring is provided with a plurality of expansion holes, and each expansion hole is internally provided with an expansion head.

Preferably, the expansion holes are tapered holes.

Preferably, the expansion head comprises a conical column, the smaller end of the conical column in diameter is fixedly connected with a screw rod, a nut is arranged at one end of each expansion hole, the nut is fixed on one side of the second sealing ring, and a threaded hole of the nut and the expansion hole are coaxially arranged.

Preferably, the end of the conical column away from the screw is provided with a hexagonal hole.

The utility model has the advantages that: the high-sealing-performance deep groove ball bearing provided by the utility model has double sealing performance and good sealing effect, and when the sealing performance is reduced, the sealing element is expanded through the expansion head, so that the sealing effect is improved, and the service life of the sealing element is prolonged.

Drawings

FIG. 1 is an exploded view of the basic structure of a high-sealing deep groove ball bearing provided by the utility model;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of the basic structure of the expansion head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1

As shown in FIGS. 1-3, the deep groove ball bearing with high sealing performance provided by the utility model comprises a bearing inner ring 2, a bearing outer ring 1, a retainer 31 and a steel ball 3, wherein the inner walls of two ends of the bearing outer ring 1 are respectively provided with a first annular groove 11, an inner cone ring surface 12 is arranged between the first annular groove 11 and the inner wall of the bearing outer ring 1, the outer walls of two ends of the bearing inner ring 2 are respectively provided with a second annular groove 21, an outer cone ring surface 22 is arranged between the second annular groove 21 and the outer wall of the bearing inner ring 2, an annular sealing element 4 is arranged between the bearing inner ring 2 and the bearing outer ring 1, the annular sealing element 4 comprises a first sealing ring 41, the first sealing ring 41 is arranged between the first annular groove 11 and the second annular groove 21, one side of the first sealing ring 41 is integrally and coaxially fixed with a second sealing ring 42, the inner wall and the outer wall of the second sealing ring 42 are respectively provided with a conical surface 43, and the two conical surfaces 43 are in one-to-one correspondence with the inner cone ring surface 12, The outer conical ring surface 22 is correspondingly arranged. The first seal ring 41 is provided with a plurality of expansion holes 44 on one side, and the expansion holes 44 are tapered holes. An expansion head 46 is disposed within each expansion hole 44. The expansion head 46 comprises a conical column 461, the end with the smaller diameter of the conical column 461 is fixedly connected with a screw 462, one end of each expansion hole 44 is provided with a nut 45, the nut 45 is fixed on one side of the second sealing ring 42, and the threaded hole of the nut 45 is coaxially arranged with the expansion hole 44. The end of the conical post 461 remote from the threaded rod 462 is provided with a hexagonal aperture 463.

The sealing element 4 is arranged between the bearing inner ring 2 and the bearing outer ring 1, the first sealing ring 41 and the second sealing ring 42 are both made of elastic materials, in the embodiment, wear-resistant rubber is adopted, first resealing is performed between the first sealing ring 41 and the first annular groove 11 as well as between the first annular groove 21 and the second annular groove 21, second resealing is performed between the conical surface 43 and the inner conical ring surface 12 as well as between the outer conical ring surface 22, after the first sealing ring 41 and the second sealing ring 42 are worn, an inner hexagonal wrench is inserted into the hexagonal hole 463 to twist the conical column 461, and the expansion head 46 moves forward under the screw thread force action of the screw 462 and the nut 45, so that the first sealing ring 41 and the second sealing ring 42 expand, the contact between the first sealing ring 41 and the bearing inner ring 2 as well as the contact between the bearing outer ring 1 becomes good, and the sealing performance is improved.

Claims

1. The utility model provides a high leakproofness deep groove ball bearing, includes bearing inner ring (2), bearing outer ring (1), holder (31) and steel ball (3), its characterized in that: the bearing is characterized in that first annular grooves (11) are arranged on inner walls of two ends of the bearing outer ring (1), inner cone ring faces (12) are arranged between the first annular grooves (11) and the inner wall of the bearing outer ring (1), second annular grooves (21) are arranged on outer walls of two ends of the bearing inner ring (2), outer cone ring faces (22) are arranged between the second annular grooves (21) and the outer wall of the bearing inner ring (2), annular sealing pieces (4) are arranged between the bearing inner ring (2) and the bearing outer ring (1), each annular sealing piece (4) comprises a first sealing ring (41), each first sealing ring (41) is arranged between the corresponding first annular groove (11) and the corresponding second annular groove (21), a second sealing ring (42) is coaxially fixed on one side of each first sealing ring (41) in an integrated mode, and the inner wall and the outer wall of each second sealing ring (42) are conical surfaces (43), the two conical surfaces (43) are arranged correspondingly to the inner conical ring surface (12) and the outer conical ring surface (22) one by one.

2. The high-sealability deep groove ball bearing according to claim 1, wherein: a plurality of expansion holes (44) are formed in one side of the first sealing ring (41), and an expansion head (46) is arranged in each expansion hole (44).

3. The high-sealability deep groove ball bearing according to claim 2, wherein: the expansion holes (44) are tapered holes.

4. The high-sealability deep groove ball bearing according to claim 2, wherein: the expansion head (46) comprises a conical column (461), a screw rod (462) is fixedly connected to one end, with the smaller diameter, of the conical column (461), a nut (45) is arranged at one end of each expansion hole (44), the nut (45) is fixed to one side of the second sealing ring (42), and a threaded hole of the nut (45) and the expansion holes (44) are coaxially arranged.

5. The high-sealability deep groove ball bearing according to claim 4, wherein: one end of the conical column (461) far away from the screw rod (462) is provided with a hexagonal hole (463).