CN210769828U

CN210769828U - Rolling bearing

Info

Publication number: CN210769828U
Application number: CN201921952413.4U
Authority: CN
Inventors: 张书玉; 赵鸿宝; 杨海博; 牟景瑞; 赵勇; 张陶山
Original assignee: Shandong Bote Bearing Co ltd
Current assignee: Shandong Bote Bearing Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-06-16
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a rolling bearing, which relates to the technical field of mechanical transmission and comprises a bearing outer ring, a bearing inner ring, a plurality of balls, a retainer and two sealing rings, wherein the bearing inner ring is coaxially sleeved in the bearing outer ring; be provided with the first annular groove of two circumference on the bearing inner race inner wall, two first annular grooves set up respectively between two terminal surfaces of the ball groove on the bearing inner race and bearing inner race, are provided with the second annular groove of two circumference on the bearing inner race outer wall, and two first annular grooves all correspond with a second annular groove, all are provided with a sealing ring between corresponding first annular groove and the second annular groove, each sealing ring all with first annular groove and second annular groove interference fit, the utility model provides a bearing has good sealed effect.

Description

Rolling bearing

Technical Field

The utility model relates to a mechanical transmission technical field especially relates to a antifriction bearing.

Background

The bearing is the important part in the machinery trade, the job stabilization nature of bearing directly influences the quality and the life-span of equipment, along with the continuous extension of bearing application field and the continuous progress of technique, the structure of bearing is also more and more complicated, the bearing has external impurity to get into in the course of the work, for example rainwater, dust etc. influence the life of bearing, consequently just need the bearing to have fine sealed effect under the more abominable condition of operating mode condition, prevent that external impurity from getting into the normal function that the bearing influenced the bearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rolling bearing to solve the problem that above-mentioned prior art exists, make the bearing have good sealed effect.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a rolling bearing, including bearing inner race, a plurality of ball, holder and two sealing rings, the bearing inner race is coaxial to be located in the bearing inner race, the ball evenly set up in the bearing inner race with between the bearing inner race, the holder is fixed to be set up in the bearing inner race with between the bearing inner race, the holder is used for keeping apart each adjacent ball;

the bearing inner ring is characterized in that two circumferential first annular grooves are formed in the inner wall of the bearing outer ring, the two first annular grooves are respectively formed in ball grooves in the bearing outer ring and between two end faces of the bearing outer ring, two circumferential second annular grooves are formed in the outer wall of the bearing inner ring, the two first annular grooves correspond to the one second annular grooves, and the sealing rings are correspondingly arranged between the first annular grooves and the second annular grooves and are in interference fit with the first annular grooves and the second annular grooves.

Preferably, each of the first annular groove and the second annular groove is an arc-shaped groove, and the cross section of the sealing ring is circular.

Preferably, the sealing ring is a rubber ring.

Preferably, a plurality of threaded holes are uniformly formed in the end face of the bearing outer ring in the circumferential direction, a bolt is installed in each threaded hole, and the bolt is used for fixing the bearing on the fixing seat.

Preferably, 6 to 8 threaded holes are uniformly formed in the end face of the bearing outer ring in the circumferential direction.

The utility model discloses for prior art gain following technological effect:

the utility model discloses a rolling bearing, which comprises a bearing outer ring, a bearing inner ring, a plurality of balls, a retainer and two sealing rings, wherein the bearing inner ring is coaxially sleeved in the bearing outer ring, the balls are uniformly arranged between the bearing outer ring and the bearing inner ring, the retainer is fixedly arranged between the bearing outer ring and the bearing inner ring, and the retainer is used for isolating each adjacent ball; two circumferential first annular grooves are arranged on the inner wall of the bearing outer ring, the two first annular grooves are respectively arranged between the ball grooves on the bearing outer ring and two end faces of the bearing outer ring, two circumferential second annular grooves are arranged on the outer wall of the bearing inner ring, the two first annular grooves both correspond to one second annular groove, a sealing ring is arranged between the two corresponding first annular grooves and the two corresponding second annular grooves, the first annular grooves and the second annular grooves can play a role of fixing the sealing rings, and each sealing ring is in interference fit with the first annular grooves and the second annular grooves, under the pivoted prerequisite of bearing inner race not influencing, the sealing ring blocks dust impurity in the outside of sealing ring with first annular groove and second annular groove interference fit can be fine, consequently, the utility model provides a antifriction bearing has good sealed effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a sectional view of a rolling bearing provided by the present invention;

fig. 2 is a cross-sectional view of a bearing outer ring provided by the present invention;

fig. 3 is a top view of the bearing outer ring provided by the present invention;

in the figure: 1-bearing outer ring, 2-first annular groove, 3-sealing ring, 4-bearing inner ring, 5-threaded hole, 6-ball groove, 7-second annular groove and 8-bolt.

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.

The utility model aims at providing a rolling bearing to solve the problem that prior art exists, make rolling bearing have good sealed effect.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides a rolling bearing, as shown in figures 1-3, comprising a bearing outer ring 1, a bearing inner ring 4, a plurality of balls, a retainer and two sealing rings 3, wherein the bearing inner ring 4 is coaxially sleeved in the bearing outer ring 1, the balls are uniformly arranged between the bearing outer ring 1 and the bearing inner ring 4, the retainer is fixedly arranged between the bearing outer ring 1 and the bearing inner ring 4, and the retainer is used for isolating each adjacent ball;

the inner wall of the bearing outer ring 1 is provided with two circumferential first annular grooves 2, the two first annular grooves 2 are respectively arranged between a ball groove 6 on the bearing outer ring 1 and two end faces of the bearing outer ring 1, the outer wall of the bearing inner ring 4 is provided with two circumferential second annular grooves 7, the two first annular grooves 2 correspond to one second annular groove 7, a sealing ring 3 is arranged between the corresponding first annular groove 2 and the corresponding second annular groove 7, the first annular groove 2 and the second annular groove 7 can play a role of fixing the sealing ring 3, each sealing ring 3 is in interference fit with the first annular groove 2 and the second annular groove 7, and on the premise of not influencing the rotation of the bearing inner ring 4, each sealing ring 3 can well block dust impurities outside the sealing ring 3 in interference fit with the first annular groove 2 and the second annular groove 7, therefore, the utility model provides a antifriction bearing has good sealed effect.

Furthermore, each first annular groove 2 and each second annular groove 7 are arc-shaped grooves, the cross section of the sealing ring 3 is circular, and when the sealing ring 3 is installed in a cavity between the first annular groove 2 and the second annular groove 7, the sealing ring 3 can roll between the first annular groove 2 and the second annular groove 7 by adopting the cylindrical sealing ring 3, so that the installation is simple and convenient.

Furthermore, the sealing ring 3 is a rubber ring, which has low cost, good friction resistance and long service life.

Further, circumference evenly is provided with a plurality of screw holes 5 on the 1 terminal surface of bearing inner race, all installs a bolt 8 in each screw hole 5, and bolt 8 is used for being fixed in the fixing base with the bearing on, and the fixing base can be the end cover of motor self, and conventional bearing fixed mode is the joint and is fixed in the bearing frame, and nevertheless there is not the space of installation bearing frame in the operational environment of part bearing because of the little scheduling problem in bearing operation space, especially in electric fork truck actuating system special bearing technical field, consequently, the utility model provides a technical scheme need not to set up the bearing frame after beating screw hole 5 on 1 terminal surface of bearing inner race and can be fixed in the fixing base with the bearing on, has saved the space of installation bearing frame.

Further, evenly be provided with 6 ~ 8 screw holes 5 in circumference on the 1 terminal surface of bearing outer lane, preferably 8 screw holes, can confirm the quantity of screw hole 5 according to bearing actual behavior or bearing size, when the bearing is less, can take the even quantity that sets up screw hole 5 in circumference to be less than 6, and in the same way, when the bearing that needs to fix is great, also can set up more than 8 screw holes 5 to satisfy the fixed requirement of bearing.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A rolling bearing characterized in that: the bearing comprises a bearing outer ring, a bearing inner ring, a plurality of balls, a retainer and two sealing rings, wherein the bearing inner ring is coaxially sleeved in the bearing outer ring, the balls are uniformly arranged between the bearing outer ring and the bearing inner ring, the retainer is fixedly arranged between the bearing outer ring and the bearing inner ring, and the retainer is used for isolating each adjacent ball;

2. Rolling bearing according to claim 1, characterized in that: each first annular groove and each second annular groove are arc-shaped grooves, and the cross section of each sealing ring is circular.

3. Rolling bearing according to claim 1, characterized in that: the sealing ring is a rubber ring.

4. Rolling bearing according to claim 1, characterized in that: the bearing outer ring is characterized in that a plurality of threaded holes are uniformly formed in the end face of the bearing outer ring in the circumferential direction, a bolt is installed in each threaded hole, and the bolt is used for fixing the bearing on the fixing seat.

5. Rolling bearing according to claim 4, characterized in that: and 6-8 threaded holes are uniformly formed in the end face of the bearing outer ring in the circumferential direction.