CN211778573U

CN211778573U - Waterproof structure of bearing

Info

Publication number: CN211778573U
Application number: CN201922159830.XU
Authority: CN
Inventors: 陈克英
Original assignee: Individual
Current assignee: KUNSHAN ROTADYNE ROLLER Inc
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-10-27
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a bearing waterproof construction belongs to the waterproof technical field of bearing, including bearing inner race, ball and bearing inner circle. The utility model discloses when the bearing inner race imbeds in bearing inner race, the inside surface of first avris retaining ring hugs closely in bearing inner race's outside surface, make first outside retaining ring rotatory along bearing inner race surface in rotatory process, make not fragile first rubber layer, and when the bearing inner race imbeds in bearing inner race, second outside retaining ring hugs closely in bearing inner race's inside surface, make second outside retaining ring rotatory along bearing inner race inside surface at rotatory in-process, thereby make not fragile piece second rubber circle, and receive great pressure and by more compression in certain one side of bearing, the pressure that its opposite side received simultaneously is less, first rubber layer and second rubber circle in the bearing also can not receive external force extrusion and lead to first rubber layer and second rubber circle in bearing inner race or bearing inner race production clearance.

Description

Waterproof structure of bearing

Technical Field

The utility model relates to a waterproof technical field of bearing, more specifically relates to a waterproof structure of bearing.

Background

The bearing is an important basic part of various mechanical equipment, and has the functions of reducing the friction coefficient in the power transmission process and keeping the central position of a shaft fixed, and the precision, the performance, the service life and the reliability of the bearing play important roles in the normal operation of the mechanical equipment.

The existing bearing waterproof structure mainly adopts a rubber ring arranged between a bearing inner ring and a bearing outer ring, and plays a waterproof role through the sliding sealing connection of the rubber ring, the bearing outer ring and the bearing inner ring. Because the rubber ring is in sliding contact with the bearing inner ring and/or the bearing outer ring, the friction force between the rubber ring and the bearing inner ring and/or the bearing outer ring is not too large, namely the pressure between the bearing outer ring and the bearing inner ring can not be too large, and in the actual running process of the bearing, a radial interaction force is usually generated between the bearing inner ring and the bearing outer ring, so that the circumferential stress distribution of the rubber ring is uneven, one side of the rubber ring is compressed more by larger pressure, the other side of the rubber ring is compressed less, the amount of compression is also smaller, the sealing effect of the side with smaller compression amount is reduced, even a gap is generated between the rubber ring and the bearing outer ring or the bearing inner ring, and water is easy to permeate. And the rubber ring can be abraded in the process of long-term sliding friction with the bearing inner ring or the bearing outer ring, needs to be replaced frequently, and is not easy to replace, so that the design of the waterproof structure of the bearing is very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of proposing in the above-mentioned background to provide a bearing waterproof construction.

In order to achieve the above object, the utility model provides a following technical scheme: a waterproof structure of a bearing comprises a bearing outer ring, a plurality of balls and a bearing inner ring, wherein the center of the inner side surface of the bearing outer ring is embedded with the balls, the inner side surface of the balls is embedded with the bearing inner ring,

the bearing outer ring comprises a first waterproof ring, a first outer side baffle ring, a first rubber ring and an annular groove, the first waterproof ring is welded on the right side of the inner side surface of the bearing outer ring, the first outer side baffle ring is welded on the right side of the inner surface of the first waterproof ring, the first rubber ring is embedded in the left side of the first outer side baffle ring, and the annular groove is welded on the bottom of the left side surface of the first waterproof ring;

the bearing inner race keeps off ring, second rubber circle and embedding ring including the waterproof ring of second, the outside surface right side welding of bearing inner race is provided with the waterproof ring of second, the outside surface left side welding of the waterproof ring of second is provided with the second outside and keeps off the ring, the right side embedding that the second outside kept off the ring is provided with the second rubber circle, the right side surface welding of the waterproof ring of second is provided with the embedding ring.

Preferably, the bearing outer ring is in rolling connection with the bearing inner ring through balls.

Preferably, the inner diameter of the first outer retainer ring is equal to the outer diameter of the bearing inner ring.

Preferably, the sum of the thicknesses of the first outer baffle ring and the first rubber ring is equal to the thickness of the first waterproof ring.

Preferably, the outer diameter of the second outer retainer ring is equal to the inner diameter of the bearing outer race.

Preferably, the sum of the thicknesses of the second outer baffle ring and the second rubber ring is equal to the thickness of the second waterproof ring.

Preferably, the number of the annular grooves and the number of the embedded rings are 2-3, and the embedded rings can be embedded into the annular grooves.

The utility model provides a bearing waterproof construction has following beneficial effect:

1. the waterproof structure of the bearing is provided with a first outer side retaining ring and a second side retaining ring, when the inner ring of the bearing is embedded into the outer ring of the bearing, the inner surface of the first side retaining ring is tightly attached to the outer surface of the inner ring of the bearing, the first outer baffle ring rotates along the outer surface of the bearing inner ring in the rotating process, so that the first rubber layer is not easy to damage, when the bearing inner ring is embedded into the bearing outer ring, the second outer retaining ring is tightly attached to the inner surface of the bearing outer ring, in the rotating process, the second outer retaining ring rotates along the inner surface of the bearing outer ring, so that the second rubber ring which is a non-vulnerable block is more compressed when being subjected to higher pressure on one side of the bearing, meanwhile, when the pressure on the other side of the bearing is small, the first rubber layer and the second rubber ring in the bearing cannot be extruded by external force to cause the first rubber layer and the second rubber ring to generate a gap in the bearing inner ring or the bearing inner ring.

2. This bearing waterproof construction is provided with ring channel and embedding ring, can imbed in the ring channel through the embedding ring for the connection between first waterproof ring and the second waterproof ring is inseparabler, makes and ring channel and embedding ring all be provided with 2-3, makes water more difficult to reach better water-proof effects in entering into the bearing.

Drawings

Fig. 1 is a schematic view of the tangent plane structure of the waterproof bearing of the present invention.

Fig. 2 is a schematic view of the structure of the bearing outer ring of the present invention.

Fig. 3 is an enlarged schematic structural diagram of fig. 2A of the present invention.

Fig. 4 is a schematic view of the structure of the bearing inner race of the present invention.

Fig. 5 is an enlarged schematic structural diagram of fig. 4B of the present invention.

In FIGS. 1-5: 1-bearing outer ring, 101-first waterproof ring, 102-first outer baffle ring, 103-first rubber ring, 104-annular groove, 2-ball, 3-bearing inner ring, 301-second waterproof ring, 302-second outer baffle ring, 303-second rubber ring, and 304-embedded ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment of the present invention, a waterproof bearing structure includes a bearing outer ring 1, balls 2 and a bearing inner ring 3, the balls 2 are embedded in the center of the inner side surface of the bearing outer ring 1, the bearing inner ring 3 is embedded in the inner side surface of the balls 2, the bearing outer ring 1 includes a first waterproof ring 101, a first outer retaining ring 102, a first rubber ring 103 and an annular groove 104, the first waterproof ring 101 is welded on the right side of the inner side surface of the bearing outer ring 1, the first outer retaining ring 102 is welded on the right side of the inner surface of the first waterproof ring 101, the first rubber ring 103 is embedded in the left side of the first outer retaining ring 102, and the annular groove 104 is welded on the bottom of the left side surface of the first waterproof ring 101; the bearing inner ring 3 comprises a second waterproof ring 301, a second outer side baffle ring 302, a second rubber ring 303 and an embedded ring 304, the second waterproof ring 301 is welded on the right side of the outer side surface of the bearing inner ring 3, the second outer side baffle ring 302 is welded on the left side of the outer side surface of the second waterproof ring 301, the second rubber ring 303 is embedded on the right side of the second outer side baffle ring 302, and the embedded ring 304 is welded on the right side surface of the second waterproof ring 301.

In this embodiment, the bearing outer ring 1 is connected to the bearing inner ring 3 by rolling balls 2.

In this embodiment, the inner diameter of the first outer retainer ring 102 is equal to the outer diameter of the bearing inner ring 3, so that when the bearing outer ring 1 rotates, the first outer retainer ring 102 rotates along the bearing inner ring 3, the stress on the first rubber ring 103 is reduced, and the first rubber ring 103 is not easily worn.

In this embodiment, the sum of the thicknesses of the first outer baffle ring 102 and the first rubber ring 103 is equal to the thickness of the first waterproof ring 101, so that the upper end of the left side surface of the first waterproof ring 101 is flat.

In this embodiment, the outer diameter of the second outer retainer ring 302 is equal to the inner diameter of the bearing outer ring 1, so that the outer surface of the bearing outer ring 1 rotating the second outer retainer ring 302 is tightly connected to the inside of the bearing outer ring 1, and the second rubber ring 303 is not easily damaged.

In this embodiment, the sum of the thicknesses of the second outer retainer ring 302 and the second rubber ring 303 is equal to the thickness of the second waterproof ring 301, so that the upper end of the right side surface of the second waterproof ring 301 is flat.

In this embodiment, the annular groove 104 and the embedded ring 304 are respectively provided with 2 to 3, and the embedded ring 304 can be embedded into the annular groove 104, so that not only the connection between the first waterproof ring 101 and the second waterproof ring 301 is tight, but also water is not easy to pass through the connection surface between the first waterproof ring 101 and the second waterproof ring 301, thereby achieving better waterproof effect.

When the bearing waterproof structure of the utility model is used, and needs to be installed, the first rubber ring 103 is firstly embedded into the left side of the first outer baffle ring 102, the second rubber ring 303 is embedded into the right side of the second outer baffle ring 302, then the bearing inner ring 3 is embedded into the left side of the bearing outer ring 1, so that the embedded ring 304 on the second waterproof ring 301 on the bearing inner ring 3 is embedded into the annular groove 104, the left side surface of the first rubber ring 103 is tightly attached to the right side surface of the second waterproof ring 301, and simultaneously the right side surface of the second rubber ring 303 is tightly attached to the left side surface of the first waterproof ring 201, so that the balls 2 are then embedded between the bearing outer ring 1 and the bearing inner ring 3, thereby achieving the rolling effect, through the arrangement of the first outer baffle ring 102 and the second side baffle ring 302, when the bearing inner ring 3 is embedded into the bearing outer ring 1, the inner surface of the first side baffle ring 102 is tightly attached to the outer side surface of the bearing inner ring 3, the first outer baffle ring 102 is enabled to rotate along the outer surface of the bearing inner ring 3 in the rotating process, so that the first rubber layer 103 is not easy to damage, when the bearing inner ring 3 is embedded into the bearing outer ring 1, the second outer baffle ring 302 is tightly attached to the inner surface of the bearing outer ring 1, the second outer baffle ring 302 is enabled to rotate along the inner surface of the bearing outer ring 3 in the rotating process, so that the second rubber ring 303 which is not easy to damage is enabled, one side of the bearing is subjected to larger pressure and is compressed more, and meanwhile, when the pressure on the other side of the bearing is smaller, the first rubber layer 103 and the second rubber ring 303 in the bearing cannot be extruded by external force to cause the first rubber layer 103 and the second rubber ring 303 to generate gaps in the bearing inner ring or the bearing inner ring.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a bearing waterproof construction, includes bearing inner race (1), ball (2) and bearing inner race (3), its characterized in that: a plurality of balls (2) are embedded in the center of the inner side surface of the bearing outer ring (1), a bearing inner ring (3) is embedded in the inner side surface of each ball (2),

the bearing outer ring (1) comprises a first waterproof ring (101), a first outer side baffle ring (102), a first rubber ring (103) and an annular groove (104), the first waterproof ring (101) is welded on the right side of the inner side surface of the bearing outer ring (1), the first outer side baffle ring (102) is welded on the right side of the inner surface of the first waterproof ring (101), the first rubber ring (103) is embedded into the left side of the first outer side baffle ring (102), and the annular groove (104) is welded on the bottom of the left side surface of the first waterproof ring (101);

bearing inner race (3) keep off ring (302), second rubber circle (303) and embedding ring (304) including waterproof ring (301) of second, the outside surface right side welding of bearing inner race (3) is provided with waterproof ring (301) of second, the outside surface left side welding of waterproof ring (301) of second is provided with the outside and keeps off ring (302), the right side embedding that the second outside kept off ring (302) is provided with second rubber circle (303), the right side surface welding of waterproof ring (301) of second is provided with embedding ring (304).

2. The waterproof structure of a bearing according to claim 1, characterized in that: the bearing outer ring (1) is in rolling connection with the bearing inner ring (3) through the balls (2).

3. The waterproof structure of a bearing according to claim 1, characterized in that: the inner diameter of the first outer baffle ring (102) is equal to the outer diameter of the bearing inner ring (3).

4. The waterproof structure of a bearing according to claim 1, characterized in that: the sum of the thicknesses of the first outer baffle ring (102) and the first rubber ring (103) is equal to the thickness of the first waterproof ring (101).

5. The waterproof structure of a bearing according to claim 1, characterized in that: the outer diameter of the second outer baffle ring (302) is equal to the inner diameter of the bearing outer ring (1).

6. The waterproof structure of a bearing according to claim 1, characterized in that: the sum of the thicknesses of the second outer baffle ring (302) and the second rubber ring (303) is equal to the thickness of the second waterproof ring (301).

7. The waterproof structure of a bearing according to claim 1, characterized in that: the annular groove (104) and the embedded ring (304) are respectively provided with 2-3, and the embedded ring (304) can be embedded into the annular groove (104).