CN217582905U

CN217582905U - High-precision rolling bearing for rail transit

Info

Publication number: CN217582905U
Application number: CN202221635781.8U
Authority: CN
Inventors: 奚志强; 王伟
Original assignee: Wuxi Haifeng & Hailin Precision Bearing Co ltd
Current assignee: Wuxi Haifeng & Hailin Precision Bearing Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-10-14
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a high accuracy antifriction bearing for track traffic relates to antifriction bearing technical field, has solved present antifriction bearing because the weight of rolling element is great, at the high-speed rotatory in-process of bearing, and the rolling element causes great impact to the holder easily, influences the life of bearing, the relatively poor problem of heat dispersion of rolling element simultaneously. A high-precision rolling bearing for rail transit, comprising: an outer ring and a rolling body; the outer ring adopts a circular ring structure; the rolling body is of a conical structure with a hollow interior, and lubricating oil is arranged in the rolling body; through being provided with holder and rolling element, reduce the impact force of rolling element to the holder at the rotatory in-process of outer lane and inner circle, be favorable to prolonging the life of holder, take away the heat that the rolling element rotatory in-process produced through the lubricating oil in the rolling element, be favorable to improving the heat dispersion of this device, further prolong the life of this device.

Description

High-precision rolling bearing for rail transit

Technical Field

The utility model belongs to the technical field of antifriction bearing, more specifically says, in particular to high accuracy antifriction bearing for track traffic.

Background

The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process. It can also be said that the member for reducing the friction coefficient during power transmission and keeping the center position of the shaft fixed when the other members are moved relative to each other on the shaft. The bearing is a lightweight part in modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process.

The existing rolling bearing has the following defects:

the existing rolling bearing has the defects that the rolling body is heavy, so that the rolling body easily causes great impact on the retainer in the high-speed rotation process of the bearing, the service life of the bearing is influenced, and meanwhile, the heat dissipation performance of the rolling body is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high accuracy antifriction bearing for track traffic to solve present antifriction bearing who proposes in the above-mentioned background art because the weight of rolling element is great, at the high-speed rotatory in-process of bearing, the rolling element causes great impact to the holder easily, influences the life of bearing, the relatively poor problem of heat dispersion of rolling element simultaneously.

The utility model relates to a high accuracy antifriction bearing's for track traffic purpose and efficiency is reached by following concrete technological means:

a high-precision rolling bearing for rail transit, comprising: an outer ring and a rolling body; the outer ring is of a circular ring structure, a circular ring groove structure is formed in the rear side of the outer ring, and four groups of screw hole structures are formed in the circular ring groove in the rear side of the outer ring in an annular array shape; a first sealing plate is arranged on the rear side of the outer ring; the inner side of the outer ring is provided with an inner ring; the rolling body adopts the toper structure of inside cavity, and the inside of rolling body is provided with lubricating oil.

Furthermore, the first sealing plate is of a circular ring structure, is fixedly arranged in a circular ring groove at the rear side of the outer ring, and is provided with a penetrating screw hole structure in an annular array shape at the rear side; first shrouding still including: the first bolts are provided with four groups, and the four groups of first bolts are arranged in the screw holes on the rear side of the first sealing plate in an annular array.

Furthermore, the inner ring is of a circular ring structure, a circular ring groove structure is arranged on the front side of the inner ring, and four groups of screw hole structures are arranged in the circular ring groove on the front side of the inner ring in an annular array manner; a second sealing plate is arranged on the front side of the inner ring; the outer side of the inner ring is provided with a retainer.

Furthermore, the second sealing plate is of a circular structure, is fixedly arranged in a circular groove at the front side of the inner ring, and is provided with four groups of penetrating screw hole structures in an annular array shape at the front side; the second shrouding still including: and the four groups of second bolts are respectively arranged in the four groups of screw holes on the front side of the second sealing plate.

Furthermore, the retainer adopts a circular ring structure, the outer side of the retainer is in an annular array shape and is provided with a through groove structure in a penetrating mode, and the outer side of the retainer is in an annular array shape and is rotatably provided with rolling bodies.

Compared with the prior art, the utility model discloses following beneficial effect has:

through being provided with holder and rolling element, through setting up the rolling element into hollow toper structure to set up lubricating oil in the inside of rolling element, can reduce the impact force of rolling element to the holder at the rotatory in-process of outer lane and inner circle, be favorable to prolonging the life of holder, take away the heat that the rolling element rotatory in-process produced through the lubricating oil in the rolling element, be favorable to improving the heat dispersion of this device, further prolong the life of this device.

Through being provided with first shrouding and second shrouding, install the both sides at inner circle and outer lane respectively through first shrouding and second shrouding, seal the gap between outer circle and the inner circle, avoid impurity such as dust to enter into between outer lane and the inner circle through the gap to avoid impurity to the influence of rolling element operating condition, reduce the rotatory resistance of rolling element.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is the utility model discloses a first shrouding and second shrouding split structure schematic diagram.

Fig. 3 is a schematic diagram of the inner ring and outer ring split structure of the present invention.

Fig. 4 is a schematic sectional view of the first sealing plate and the second sealing plate of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. an outer ring; 2. a first seal plate; 201. a first bolt; 3. an inner ring; 4. a second seal plate; 401. a second bolt; 5. a holder; 6. and a rolling body.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

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, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The embodiment is as follows:

as shown in figures 1 to 4:

the utility model provides a high accuracy antifriction bearing for track traffic, include: an outer ring 1 and rolling bodies 6; the outer ring 1 is of a circular structure, a circular groove structure is arranged on the rear side of the outer ring 1, and four groups of screw hole structures are arranged in the circular groove on the rear side of the outer ring 1 in an annular array shape; a first sealing plate 2 is arranged on the rear side of the outer ring 1; the inner side of the outer ring 1 is provided with an inner ring 3; the rolling body 6 is of a conical structure with a hollow interior, and lubricating oil is arranged inside the rolling body 6.

The first sealing plate 2 is of a circular structure, the first sealing plate 2 is fixedly arranged in a circular groove at the rear side of the outer ring 1, and the rear side of the first sealing plate 2 is provided with penetrating screw hole structures in an annular array shape; the first closing plate 2 further comprises: the first bolts 201, the first bolts 201 are provided with four groups altogether, and the four groups of first bolts 201 are arranged in the screw holes at the rear side of the first sealing plate 2 in an annular array.

Through adopting above-mentioned technical scheme, screw cooperation through

first bolt

201 and 1 rear side of outer lane, screw cooperation through

second bolt

401 and 3 front sides of inner circle, install first shrouding 2 and second shrouding 4 in the front and back both sides of outer lane 1 and inner circle 3, seal the gap between outer lane 1 and the inner circle 3, avoid impurity such as dust to enter into between outer lane 1 and the inner circle 3 through the gap, thereby avoid the influence of impurity to 6 operating condition of rolling element, reduce the rotatory resistance of rolling element 6.

The inner ring 3 is of a circular structure, a circular groove structure is arranged on the front side of the inner ring 3, and four groups of screw hole structures are arranged in the circular groove on the front side of the inner ring 3 in an annular array manner; a second sealing plate 4 is arranged on the front side of the inner ring 3; the outer side of the inner ring 3 is provided with a cage 5.

The second sealing plate 4 is of a circular structure, the second sealing plate 4 is fixedly arranged in a circular groove at the front side of the inner ring 3, and four groups of penetrating screw hole structures are arranged at the front side of the second sealing plate 4 in an annular array; the second closing plate 4 further comprises: the second bolts 401, the second bolts 401 are provided in four groups, and the four groups of second bolts 401 are respectively provided in the four groups of screw holes on the front side of the second closing plate 4.

The retainer 5 is of a circular ring structure, the outer side of the retainer 5 is of a ring array structure and is provided with a through groove structure in a penetrating mode, and the outer side of the retainer 5 is provided with rolling bodies 6 in a ring array rotation mode.

The specific use mode and function of the embodiment are as follows:

the utility model discloses in, in the in-process that uses, outer lane 1 and inner circle 3 carry out rotary motion along the inside and outside both sides of holder 5 and rolling element 6 separately, because the inside of rolling element 6 is hollow structure, so make the weight of rolling element 6 self lighter, reduced the impact strength to holder 5 in rotatory in-process, the heat that produces when rotatory is taken away to the inside lubricating oil that holds of accessible rolling element 6 simultaneously, improve the heat dispersion of this device, be favorable to this device life's promotion, simultaneously when using, the screw cooperation of the first bolt 201 of accessible and outer lane 1 rear side, screw cooperation through

second bolt

401 and 3 front sides of inner circle, install first shrouding 2 and second shrouding 4 in the front and back both sides of outer lane 1 and inner circle 3, seal the gap between outer lane 1 and inner circle 3, avoid impurity such as dust to enter into between outer lane 1 and the inner circle rolling element 3 through the gap, thereby avoid the influence of impurity to 6 operating condition, reduce the rotatory resistance of rolling element 6.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A high-precision rolling bearing for rail transit, characterized by comprising: an outer ring (1) and rolling bodies (6); the outer ring (1) is of a circular structure, a circular groove structure is formed in the rear side of the outer ring (1), and four groups of screw hole structures are formed in the circular groove in the rear side of the outer ring (1) in an annular array shape; a first sealing plate (2) is arranged on the rear side of the outer ring (1); the inner side of the outer ring (1) is provided with an inner ring (3); the rolling body (6) is of a conical structure with a hollow interior, and lubricating oil is arranged inside the rolling body (6).

2. The high-precision rolling bearing for rail transit according to claim 1, characterized in that: first shrouding (2) adopt ring shape structure, and first shrouding (2) are fixed to be set up in the annular groove of outer lane (1) rear side, and the rear side of first shrouding (2) is the annular array form and offers the screw structure of through-going formula.

3. The high-precision rolling bearing for rail transit as set forth in claim 2, wherein: the first closing plate (2) further comprises: the first bolts (201), the first bolts (201) are provided with four groups altogether, and the four groups of first bolts (201) are arranged in the screw hole of first shrouding (2) rear side in the form of annular array.

4. The high-precision rolling bearing for rail transit according to claim 1, characterized in that: the inner ring (3) is of a circular structure, a circular groove structure is arranged on the front side of the inner ring (3), and four groups of screw hole structures are arranged in the circular groove on the front side of the inner ring (3) in an annular array shape; a second sealing plate (4) is arranged on the front side of the inner ring (3); the outer side of the inner ring (3) is provided with a retainer (5).

5. The high-precision rolling bearing for rail transit according to claim 4, characterized in that: the second sealing plate (4) is of a circular structure, the second sealing plate (4) is fixedly arranged in a circular groove in the front side of the inner ring (3), and four groups of penetrating screw hole structures are arranged in the front side of the second sealing plate (4) in an annular array shape; the second closing plate (4) also comprises: the second bolts (401) are provided with four groups of second bolts (401), and the four groups of second bolts (401) are respectively arranged in the four groups of screw holes on the front side of the second sealing plate (4).

6. The high-precision rolling bearing for rail transit according to claim 4, characterized in that: the retainer (5) adopts a circular ring structure, the outer side of the retainer (5) is in an annular array shape and is provided with a through groove structure in a penetrating mode, and the outer side of the retainer (5) is in an annular array shape and is provided with a rolling body (6) in a rotating mode.