CN219351427U

CN219351427U - Rolling bearing device of motor

Info

Publication number: CN219351427U
Application number: CN202320097177.2U
Authority: CN
Inventors: 吴泰; 王猛; 张奔; 秦科; 熊前明; 胡昌顺
Original assignee: Atb Motors Wuhan Co ltd; Wolong Electric Group Co Ltd
Current assignee: Atb Motors Wuhan Co ltd; Wolong Electric Drive Group Co Ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-07-14
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a rolling bearing device of a motor, wherein a spiral groove is arranged on a rotating shaft; the bearing comprises a bearing inner cover, a bearing body, a bearing outer cover, an oil baffle disc, an oil thrower and a water throwing disc, wherein the bearing inner cover, the bearing body, the bearing outer cover, the oil baffle disc, the oil thrower and the water throwing disc are sequentially arranged together and are sleeved on the rotating shaft, and a grease storage groove is formed in the bearing inner cover, the bearing body and the bearing outer cover; the motor drives the rolling bearing device of the motor to move, enough grease can be stored in the grease storage tank in advance, when the bearing rotates under severe working conditions of frequent starting, large vibration and low load rate of the motor, the grease in the grease storage tank overflows from the spiral groove through the grease overflow port to lubricate a gap between the bearing and the rotating shaft, so that the grease loss can be prevented as much as possible, the stored grease can be continued to the next grease adding period, the fault frequency is reduced, and the lubrication time of the bearing can be prolonged.

Description

Rolling bearing device of motor

Technical Field

The utility model relates to the technical field of motors, in particular to a rolling bearing device of a motor.

Background

The motor is often required to drive a load with frequent starting, large vibration and variable load rate, and maintenance of a terminal customer is not as expected, and the customer rarely adds new grease to the bearing device in time to discharge waste grease, generally less than three months, and the bearing has serious accidents such as dry grinding, vibration, high temperature, shaft locking, internal grinding of a stator and a rotor, winding burnout and the like caused by the lack of grease, and the frequency is high.

For various severe working conditions of frequent starting, large vibration and variable load rate, the bearing device is required to store enough grease so as to meet the normal lubrication requirement of the bearing when the bearing device can be connected to the next grease adding period. However, the bearing device before optimization is generally less than three months before the next greasing period comes, and because grease deficiency lubrication is easy to cause serious accidents such as dry grinding, vibration, high temperature, shaft holding, stator and rotor internal grinding, winding burnout and the like, the frequency is high, and the bearing device is difficult to adapt to the actual running environment and the capability of severe working conditions.

In view of the above, it is desirable to provide a new rolling bearing device for an electric motor that overcomes the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to provide a rolling bearing device of a motor, which can store enough grease in a grease storage tank in advance, and can connect the stored grease to the next grease adding period under the severe working conditions of frequent starting, large vibration and low load factor of the motor, thereby reducing the fault frequency and prolonging the lubrication time of the bearing.

In order to achieve the above object, the present utility model provides a rolling bearing device of an electric motor, comprising: the rotating shaft is provided with a spiral groove;

the bearing comprises a bearing inner cover, a bearing body, a bearing outer cover, an oil baffle disc, an oil thrower and a water throwing disc, wherein the bearing inner cover, the bearing body, the bearing outer cover, the oil baffle disc, the oil thrower and the water throwing disc are sequentially installed together and are all sleeved on the rotating shaft, and a grease storage groove is formed in the bearing inner cover, the bearing body and the bearing outer cover.

Preferably, the fat inlet of the fat storage tank is provided with a fat adding pipe, and the fat overflow port of the fat storage tank extends to the groove of the rotating shaft.

Preferably, a conductive hoop is arranged at a gap between the bearing inner cover and the rotating shaft.

Preferably, the bearing outer cover is provided with a grease pumping device.

Preferably, the oil baffle disc, the oil thrower disc and the position where the water throwing disc contacts with the bearing outer cover are provided with a water throwing groove, one end of the water throwing groove extends to the bearing body, and the other end of the water throwing groove extends to the outside of the rolling bearing device of the motor.

Preferably, the rolling bearing device of the motor further comprises an elastic retainer ring, and the elastic retainer ring is sleeved on the rotating shaft and is attached to the outer side of the water throwing disc.

Compared with the prior art, the beneficial effects are that: the motor drives the rolling bearing device of the motor to move, enough grease can be stored in the grease storage tank in advance, when the bearing rotates under severe working conditions of frequent starting, large vibration and low load rate of the motor, the grease in the grease storage tank overflows from the spiral groove through the grease overflow port to lubricate a gap between the bearing and the rotating shaft, so that the grease loss can be prevented as much as possible, the stored grease can be continued to the next grease adding period, the fault frequency is reduced, and the lubrication time of the bearing can be prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a sectional view of a rolling bearing device of an electric motor provided by the present utility model.

Fig. 2 is a side view of a rolling bearing device of a motor provided by the present utility model.

1. A rotating shaft; 2. a bearing; 21. a bearing inner cover; 22. a bearing body; 23. a bearing outer cover; 24. a windage tray; 25. an oil slinger; 26. a water throwing disc; 27. a fat storage tank; 271. a fat-liquoring pipe; 3. a conductive ferrule; 4. a liposuction device; 5. a water throwing tank; 6. and (5) a circlip.

Detailed Description

In order to make the objects, technical solutions and advantageous technical effects of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is intended to illustrate the utility model, and not to limit the utility model.

It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements 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 utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be connected between two elements or the interaction relationship between the two elements. It will be apparent to those skilled in the art that the terms described above have the particular meaning in the present utility model, as the case may be.

Furthermore, features defining "first", "second" may explicitly or implicitly include one or more such features; the meaning of "a plurality of", "a number" means two or more, unless specifically defined otherwise.

Referring to fig. 1 to 2, the present utility model provides a rolling bearing device of an electric motor, comprising: the rotating shaft 1 is provided with a spiral groove 11;

the bearing 2, the bearing 2 includes bearing inner cup 21, bearing body 22, bearing enclosing cover 23, oil baffle disc 24, oil thrower 25 and water thrower 26, bearing inner cup 21, bearing body 22, bearing enclosing cover 23, oil baffle disc 24, oil thrower 25 and water thrower 26 are installed together in proper order (are installed in proper order from right to left as shown in fig. 1) and all cover and locate on the pivot 1, just bearing inner cup 21, bearing body 22 and bearing enclosing cover 23 inside are formed with the fat storage groove 27.

Through the design, the rolling bearing device of the motor can store enough grease, when the motor is faced to severe working conditions of frequent starting, large vibration and low load factor, when the bearing 2 rotates, the grease in the grease storage groove 27 overflows from the spiral groove 11 through the grease overflow port to lubricate the gap between the bearing 2 and the rotating shaft 1, so that the grease loss can be prevented as much as possible, the stored grease can be continued to the next grease adding period, the fault frequency is reduced, and the lubrication time of the bearing 2 can be prolonged.

Further, a fat adding pipe 271 is disposed at the fat inlet of the fat storage tank 27, and the fat overflow port of the fat storage tank 27 extends to the groove of the rotating shaft 1. When the bearing 2 rotates, grease in the grease storage groove 27 can overflow from the groove through the grease overflow port to lubricate the gap between the bearing 2 and the rotating shaft 1.

Further, a conductive hoop 3 is disposed at a gap between the bearing inner cover 21 and the rotating shaft 1, so as to introduce the current of the rotating shaft 1 into the ground, and prevent the electric corrosion of the current of the rotating shaft 1 to the bearing 2, thereby damaging the bearing 2.

In this embodiment, the shape of the conductive hoop 3 is circular or elliptical, the material is conductive carbon fiber, and the conductive hoop 3 has the characteristics of wear resistance, elasticity and small friction coefficient.

Further, the bearing outer cover 23 is provided with a grease extractor 4 so as to be connected with a negative pressure suction piece to extract the excessive grease in the grease storage tank 27.

Further, a water slinger 5 is formed at a position where the oil baffle pan 24, the oil slinger 25 and the water slinger 26 are in contact with the bearing outer cover 23, one end of the water slinger 5 extends to the bearing body 22, and the other end of the water slinger 5 extends to the outside of the rolling bearing device of the motor. In this embodiment, the water-throwing groove 5 is curved to prevent the external sewage from flowing into the bearing body 22.

Further, the rolling bearing device of the motor further comprises a circlip 6, and the circlip 6 is sleeved on the rotating shaft 1 and is attached to the outer side of the water throwing disc 26.

When the grease storage tank is used, the motor drives the rolling bearing device of the motor to move, enough grease can be stored in the grease storage tank in advance, when the bearing 2 rotates under severe working conditions of frequent starting, large vibration and low load factor of the motor, the grease in the grease storage tank 27 overflows the spiral groove 11 through the grease overflow port to lubricate a gap between the bearing 2 and the rotating shaft 1, so that the grease loss can be prevented as much as possible, the stored grease can be continued to the next grease adding period, the fault frequency is reduced, and the lubrication time of the bearing 2 can be prolonged.

The present utility model is not limited to the details and embodiments described herein, and thus additional advantages and modifications may readily be made by those skilled in the art, without departing from the spirit and scope of the general concepts defined in the claims and the equivalents thereof, and the utility model is not limited to the specific details, representative apparatus and examples shown and described herein.

Claims

1. A rolling bearing device of an electric motor, characterized by comprising: the rotating shaft (1), wherein a spiral groove (11) is formed in the rotating shaft (1);

bearing (2), bearing (2) are including bearing inner cup (21), bearing body (22), bearing enclosing cover (23), oil baffle disc (24), oil thrower (25) and get rid of water tray (26), bearing inner cup (21), bearing body (22), bearing enclosing cover (23), oil baffle disc (24), oil thrower (25) and get rid of water tray (26) and install together in proper order and all overlap on pivot (1), just bearing inner cup (21), bearing body (22) and the inside fat storage groove (27) that is formed with of bearing enclosing cover (23).

2. Rolling bearing device of an electric machine according to claim 1, characterized in that the grease inlet of the grease reservoir (27) is provided with a grease filling pipe (271), the grease overflow of the grease reservoir (27) extending to the groove of the spindle (1).

3. Rolling bearing device of an electric machine according to claim 1, characterized in that a conductive collar (3) is provided at the gap between the bearing inner cover (21) and the rotating shaft (1).

4. A rolling bearing device of an electric machine according to claim 1, characterized in that the bearing cover (23) is provided with a grease extractor (4).

5. The rolling bearing device of the motor according to claim 1, characterized in that a water-throwing groove (5) is formed at a position where the oil baffle disc (24), the oil thrower disc (25) and the water throwing disc (26) are in contact with the bearing outer cover (23), one end of the water throwing groove (5) extends to the bearing body (22), and the other end of the water throwing groove (5) extends to the outside of the rolling bearing device of the motor.

6. The rolling bearing device of the motor according to claim 5, characterized in that the rolling bearing device of the motor further comprises a circlip (6), wherein the circlip (6) is sleeved on the rotating shaft (1) and is attached to the outer side of the water throwing disc (26).