CN215950126U

CN215950126U - Double-row deep groove ball bearing

Info

Publication number: CN215950126U
Application number: CN202122581252.6U
Authority: CN
Inventors: 李瑞建; 刘朋
Original assignee: Linqing Hengbo Bearing Co ltd
Current assignee: Linqing Hengbo Bearing Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-04
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses a double-row deep groove ball bearing which comprises a bearing inner ring, wherein a plurality of groups of balls are sleeved on two sides of the outer side of the bearing inner ring, a bearing outer ring is sleeved on the outer side of the plurality of groups of balls, a retainer is sleeved on the middle part of the outer side of the plurality of groups of balls on the same side, a plurality of groups of inner sleeves and a plurality of groups of outer sleeves are respectively arranged on one side, close to the two groups of retainers, of the two groups of retainers, and movable grooves are arranged in the middle parts of the top and the bottom of the inner side of the bearing outer ring; according to the utility model, through the mutual matching of the sealing ring, the retainer, the movable groove, the inner sleeve, the outer sleeve, the hinge rod, the movable rod and the steel ball, when the device rotates, the steel ball can be thrown to move outwards through centrifugal force during rotation, and the two groups of retainers can be driven to mutually approach during moving, so that the two groups of retainers are tightly attached to the outer sides of the balls when the device operates, the limiting effect on the balls is improved, and the stability during rotation is enhanced.

Description

Double-row deep groove ball bearing

Technical Field

The utility model relates to the technical field of deep groove ball bearings, in particular to a double-row deep groove ball bearing.

Background

The bearing is an important part in the modern mechanical equipment, the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body, the double-row deep groove ball bearing is one kind of bearing, the design of the double-row deep groove ball bearing is basically the same as that of a single-row deep groove ball bearing, the deep groove ball shaft-shaped raceway and the raceway have excellent tightness with a steel ball, and the double-row deep groove ball bearing can bear axial loads acting in two directions besides radial loads;

but still has more obvious problems: when the existing bearing operates, the gap between the retainer and the ball is large, the ball is difficult to be stably limited, and the stability during operation is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-row deep groove ball bearing to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a double-row deep groove ball bearing, includes the bearing inner circle, the both sides cover in the bearing inner circle outside is equipped with multiunit ball, multiunit the common cover in outside of ball is equipped with bearing inner race, homonymy multiunit the common cover in middle part in the ball outside is equipped with the holder, and is two sets of one side that the holder is close to mutually is provided with interior sleeve pipe of multiunit and multiunit outer tube respectively, the middle part of the inboard top of bearing inner race and bottom is provided with movable groove, the inboard cover in bottom of movable groove is equipped with the movable rod, the top of movable rod is provided with the steel ball, the both sides of movable rod bottom articulate there is the hinge bar, and are two sets of the bottom of hinge bar is articulated mutually with interior sleeve pipe and outer tube respectively, and is two sets of one side is kept away from each other to the holder and is provided with the sealing ring.

Preferably, the inner sleeve and the outer sleeve are in sliding connection and are matched with each other.

Preferably, both sides of the outer side of the bearing inner ring and both sides of the inner side of the bearing outer ring are provided with rolling grooves matched with the balls.

Preferably, the cross-sectional shape of the sealing ring is trapezoidal, and two sides of the outer side of the bearing inner ring, which are far away from the balls, and two sides of the inner side of the bearing outer ring, which are far away from the balls, are provided with annular grooves matched with the sealing ring.

Preferably, the top of the outer side of the movable rod is sleeved with a spring connected with the movable groove, and the top of the spring is connected with the steel ball.

Preferably, the two groups of movable grooves are provided with grooves matched with the hinge rods at the top and the bottom close to the bearing inner ring.

Compared with the prior art, the utility model has the beneficial effects that: the double-row deep groove ball bearing ensures that when the device rotates through the mutual matching of the sealing ring, the retainer, the movable groove, the inner sleeve, the outer sleeve, the hinge rod, the movable rod and the steel ball, the steel ball can be thrown to move outwards by centrifugal force during rotation, and the two groups of holding frames can be driven to mutually approach in the moving process, so that when the device runs, clinging to the outer side of the ball, improving the limiting effect on the ball, enhancing the stability during rotation, meanwhile, the outer sleeve is connected with the inner sleeve, so that the two groups of holding frames can synchronously rotate, a plurality of groups of balls can synchronously roll under the limitation of the holding frames, the stability during rotation is further improved, and because the special shape of sealing ring for the sealing ring can be more inseparable with the laminating of ring channel under the pulling of retainer, has promoted the leakproofness of both sides, can prevent that the dust from getting into the device inboard.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a side cross-sectional view of the present invention;

FIG. 3 is a perspective view of the present invention;

fig. 4 is an enlarged view of the structure at a in fig. 1 according to the present invention.

In the figure: 1. a bearing inner race; 2. a seal ring; 3. a bearing outer race; 4. a ball bearing; 5. a holder; 6. a movable groove; 7. an inner sleeve; 8. an outer sleeve; 9. a hinged lever; 10. a movable rod; 11. and (5) steel balls.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a double-row deep groove ball bearing comprises a bearing inner ring 1, wherein a plurality of groups of balls 4 are sleeved on two sides of the outer side of the bearing inner ring 1, a bearing outer ring 3 is sleeved on the outer side of the plurality of groups of balls 4, a retainer 5 is sleeved on the middle of the outer side of the plurality of groups of balls 4 on the same side and used for limiting the balls 4, a plurality of groups of inner sleeves 7 and a plurality of groups of outer sleeves 8 are respectively arranged on one side, close to the two groups of retainers 5, of the bearing outer ring 3, a movable groove 6 is arranged in the middle of the top and the bottom of the inner side of the bearing outer ring 3, a movable rod 10 is sleeved on the inner side of the bottom of the movable groove 6, a steel ball 11 is arranged on the top of the movable rod 10 and can be thrown by centrifugal force during rotation to move outwards, hinge rods 9 are hinged on two sides of the bottom of the movable rod 10, the bottoms of the two groups of hinge rods 9 are respectively hinged with the inner sleeves 7 and the outer sleeves 8, and a sealing ring 2 is arranged on one side, far away from each other side of the two groups of the retainers 5, both sides of the device are sealed.

Furthermore, the inner sleeve 7 and the outer sleeve 8 are in sliding connection and are matched with each other, so that the two groups of holding frames 5 can synchronously rotate.

Furthermore, rolling grooves matched with the balls 4 are formed in both sides of the outer side of the bearing inner ring 1 and both sides of the inner side of the bearing outer ring 3, so that the balls 4 can roll.

Furthermore, the cross-sectional shape of sealing ring 2 is trapezoidal, and the both sides of keeping away from ball 4 in the bearing inner race 1 outside and the inboard both sides of keeping away from ball 4 in the bearing outer race 3 all are provided with the ring channel with sealing ring 2 looks adaptation, have promoted the leakproofness of device both sides, can prevent that the dust from getting into the device inboard.

Furthermore, the top of the outer side of the movable rod 10 is sleeved with a spring connected with the movable groove 6, and the top of the spring is connected with the steel ball 11, so that the tension of the steel ball 11 can be improved.

Furthermore, grooves matched with the hinge rod 9 are formed in the top and the bottom, close to the bearing inner ring 1, of the two groups of movable grooves 6, so that the hinge rod 9 can move conveniently.

The working principle is as follows: after the device is installed, when the bearing outer ring 3 rotates, the steel ball 11 can be thrown by centrifugal force during rotation, and then the steel ball 11 can pull the movable rod 10 to move towards the inner side of the movable groove 6, when the movable rod 10 moves, the outer sleeve 8 and the inner sleeve 7 can be respectively pulled to approach each other by the hinge rod 9, thereby driving the two groups of holding frames 5 to approach each other, leading the two groups of holding frames 5 to be tightly attached to the outer sides of the balls 4 when the device runs, improving the limiting effect on the balls 4, strengthening the stability, meanwhile, the outer sleeve 8 is connected with the inner sleeve 7, so that the two groups of holding frames 5 can be limited, the two groups of holding frames 5 can drive a plurality of groups of balls 4 to synchronously roll, the operation stability is further improved, the sealing ring 2 is pulled by the holding frames 5, due to the special shape of the sealing ring 2, the sealing ring 2 can be attached to the annular groove more tightly, and the sealing performance of two sides is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, e.g., as either a fixed connection or a removable connection, unless expressly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a double-row deep groove ball bearing, includes bearing inner race (1), its characterized in that: a plurality of groups of balls (4) are sleeved on two sides of the outer side of the bearing inner ring (1), a bearing outer ring (3) is sleeved on the outer side of the plurality of groups of balls (4) together, a retainer (5) is sleeved on the middle part of the outer side of the plurality of groups of balls (4) on the same side together, a plurality of groups of inner sleeves (7) and a plurality of groups of outer sleeves (8) are respectively arranged on one sides of the two groups of retainers (5) close to each other, the middle parts of the top and the bottom of the inner side of the bearing outer ring (3) are provided with movable grooves (6), a movable rod (10) is sleeved on the inner side of the bottom of the movable groove (6), a steel ball (11) is arranged at the top of the movable rod (10), the both sides of movable rod (10) bottom articulate there are hinge bar (9), and are two sets of the bottom of hinge bar (9) is articulated mutually with interior sleeve pipe (7) and outer tube (8) respectively, and is two sets of one side is kept away from each other in holder (5) is provided with sealing ring (2).

2. The double row deep groove ball bearing of claim 1, wherein: the inner sleeve (7) and the outer sleeve (8) are in sliding connection and are matched with each other.

3. The double row deep groove ball bearing of claim 1, wherein: and rolling grooves matched with the rolling balls (4) are formed in both sides of the outer side of the bearing inner ring (1) and both sides of the inner side of the bearing outer ring (3).

4. The double row deep groove ball bearing of claim 1, wherein: the cross-sectional shape of sealing ring (2) is trapezoidal, the both sides of keeping away from ball (4) in the bearing inner race (1) outside and the both sides of keeping away from ball (4) in bearing outer lane (3) inboard all are provided with the ring channel with sealing ring (2) looks adaptation.

5. The double row deep groove ball bearing of claim 1, wherein: the top of the outer side of the movable rod (10) is sleeved with a spring connected with the movable groove (6), and the top of the spring is connected with the steel ball (11).

6. The double row deep groove ball bearing of claim 1, wherein: grooves matched with the hinge rods (9) are formed in the top and the bottom, close to the bearing inner ring (1), of the two groups of movable grooves (6).