CN220107719U - Drainage motor with aligning structure - Google Patents

Abstract

The utility model discloses a drainage motor with a aligning structure, which relates to the technical field of motors and comprises a casing and a rotor, wherein a mounting cavity and an oil storage cavity are sequentially arranged in the casing; according to the utility model, the connecting plate is arranged at one end of the bearing sleeve, the aligning plate facing the impeller is arranged at the edge of the outer peripheral surface of the connecting plate, when the coaxiality of the central holes of the front bearing and the bearing sleeve is deviated, the angle between the aligning plate and the connecting plate, and between the aligning plate and the bearing mounting plate is changed, and the aligning plate is compressed, so that elastic force is generated, automatic aligning is performed, friction force and noise between a motor shaft and the bearing are reduced, the service life of the drainage motor is prolonged, and the drainage motor has the functions of automatic aligning and deviation correcting.

Description

Drainage motor with aligning structure

Technical Field

The utility model relates to the technical field of motors, in particular to a drainage motor with a self-aligning structure.

Background

An electric machine is a device that converts electrical energy into mechanical energy. The magnetic power rotating torque is formed by generating a rotating magnetic field by using an electrified coil (namely a stator winding) and acting on a rotor. The motor mainly comprises a stator and a rotor. The motor works in the principle that the magnetic field acts on the current to rotate the motor. The motor is also called as an electric motor or a motor.

The drainage motor in the market at present, its bearing structure that is used for supporting the motor shaft is mostly simple bearing housing's structural style, the outer wall of bearing housing directly impresss in the bearing installation department, when the axiality of current bearing and bearing housing's centre bore takes place the deviation, it does not have automatic aligning and correct the effect of axiality deviation, therefore the motor shaft can take place friction noise with the centre bore of bearing housing to the wearing and tearing of bearing have been accelerated, thereby have influenced drainage motor's life, can not satisfy user's needs better, have in view of this, need a drainage motor with aligning structure urgently.

Disclosure of Invention

The present utility model solves the problems of the prior art with the following technical structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the drainage motor with the aligning structure comprises a shell and a rotor, wherein an installation cavity and an oil storage cavity are sequentially arranged in the shell, the rotor is coaxially and rotatably installed in the cavity, and a stator matched with the rotor is arranged on the shell;

the motor shaft is coaxially arranged on the rotor, the output end of the motor shaft penetrates through the shell and extends to the outer side of the shell, the tail end of the motor shaft extends into the oil storage cavity, the motor shaft is sleeved with a front bearing, the motor shaft is arranged on the shell through the front bearing, and the output end of the motor shaft is coaxially provided with an impeller;

the utility model discloses a self-aligning bearing, including installation cavity and oil storage cavity, the installation cavity is provided with the bearing mounting panel between, install the self-aligning bearing on the bearing mounting panel, the self-aligning bearing includes bearing housing, connecting plate, self-aligning board, the one end of bearing housing runs through the bearing mounting panel and is connected with the bearing mounting panel, the bearing housing cover is established on the motor shaft, the connecting plate is installed and is kept away from the outside anchor ring of bearing mounting panel one end at the bearing housing, the one end and the connecting plate top of self-aligning board are connected, and the other end is connected with the bearing mounting panel, the axis of self-aligning board and bearing housing is nonparallel.

It is further characterized in that,

the connecting plate and the aligning plate are at least three.

The connecting plates are uniformly distributed on the annular surface of the bearing sleeve.

The self-aligning bearing is made of engineering plastics.

The included angle between the aligning plate and the axis of the bearing sleeve is 5-20 degrees.

The structure of the utility model can achieve the following beneficial effects:

(1) When the coaxiality of the center holes of the front bearing and the bearing sleeve deviates, the angle between the aligning plate and the connecting plate, and the angle between the aligning plate and the bearing mounting plate are changed, and the aligning plate is compressed, so that elastic force is generated, automatic aligning is performed, friction force and noise between a motor shaft and the bearing are reduced, the service life of the drainage motor is prolonged, and the drainage motor has the functions of automatic aligning and deviation correcting.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the present embodiment;

FIG. 2 is an enlarged schematic view of the structure at I in FIG. 1;

FIG. 3 is a cross-sectional view of the self-aligning bearing structure in this embodiment;

fig. 4 is a schematic diagram of the structure of the aligning bearing in the present embodiment.

In the figure: 1. a housing; 11. installing a cavity; 12. an oil storage chamber; 13. a bearing mounting plate; 2. a rotor; 21. a motor shaft; 22. an impeller; 23. a front bearing; 3. aligning the bearing; 31. a bearing sleeve; 32. a connecting plate; 33. and (5) aligning the plate.

Detailed Description

The first embodiment, referring to fig. 1-4, is a drainage motor with a aligning structure, comprising a casing 1 and a rotor 2, wherein a mounting cavity 11 and an oil storage cavity 12 are sequentially arranged in the casing 1, the rotor 2 is coaxially and rotatably arranged in the cavity 11, and a stator matched with the rotor is arranged on the casing;

the rotor 2 is coaxially provided with a motor shaft 21, the output end of the motor shaft 21 penetrates through the shell 1 and extends to the outer side of the shell 1, the tail end of the motor shaft extends into the oil storage cavity 12, a front bearing 23 is sleeved on the motor shaft 21, the motor shaft 21 is arranged on the shell 1 through the front bearing 23, and an impeller 22 is coaxially arranged at the output end of the motor shaft 21;

the installation cavity 11 is provided with the bearing mounting panel 13 with the oil storage chamber 12 between, the motor shaft 21 runs through the bearing mounting panel 13, install aligning bearing 3 on the bearing mounting panel 13, aligning bearing 3 includes bearing housing 31, connecting plate 32, aligning plate 33, the one end of bearing housing 31 runs through the bearing mounting panel 13 and is connected with bearing mounting panel 13, the bearing housing 31 cover is established on the motor shaft 21, connecting plate 32 installs the outside anchor ring of the one end of keeping away from bearing mounting panel 13 at bearing housing 31, aligning plate 33's one end is connected with connecting plate 32 top, the other end is connected with bearing mounting panel 13, aligning plate 33 is nonparallel with the axis of bearing housing 31, aligning plate 33 is 5 ~ 20 with the contained angle of bearing housing 31 axis, this angle is the best angle.

Based on the above structure, a connecting plate 32 is arranged at one end of the bearing sleeve 31, a centering plate 33 facing the impeller 22 is arranged at the edge of the outer peripheral surface of the connecting plate 32, an included angle is formed between the centering bearing 3 and the axis of the bearing sleeve 31, when the coaxiality of the center holes of the front bearing 23 and the bearing sleeve 31 deviates, the angle between the centering plate 33 and the connecting plate 32, the angle between the centering plate 33 and the bearing mounting plate 13 changes, and the centering plate 33 is compressed, so that elastic force is generated, the centering is automatically performed, the friction force and noise between the motor shaft 21 and the bearing are reduced, the service life of the drainage motor is prolonged, and the drainage motor has the functions of automatic centering and deviation correction.

The connecting plates 32 and the aligning plates 33 are at least three, the connecting plates 32 are uniformly distributed on the annular surface of the bearing sleeve 31, and the bearing sleeve 31 is more stable and can realize aligning effect better by arranging the connecting plates 32 and the aligning plates 33 which are uniformly distributed.

The aligning bearing 3 is made of engineering plastics and is integrally formed by injection molding of the engineering plastics.

It is further optimized that the aligning plate 33 in the normal state is in a state of being slightly compressed by the bearing mounting plate 13, the connecting plate 32, and the aligning effect can be better achieved.

The working principle of the utility model is as follows: the bearing sleeve 31 is provided with the connecting plate 32 at one end, the peripheral surface edge of the connecting plate 32 is provided with the aligning plate 33 facing the impeller 22, the aligning bearing 3 has an included angle with the axis of the bearing sleeve 31, when the coaxiality of the front bearing 23 and the central hole of the bearing sleeve 31 deviates, the angle between the aligning plate 33 and the connecting plate 32 and the angle between the aligning plate 33 and the bearing mounting plate 13 change, and the aligning plate 33 is compressed, so that elastic force is generated, the automatic aligning is realized, the friction force and noise between the motor shaft 21 and the bearing are reduced, the service life of the drainage motor is prolonged, and the drainage motor has the functions of automatic aligning and deviation correcting.

The aligning bearing 3 is made of engineering plastics, is integrally formed by injection molding of the engineering plastics, and is simple in manufacturing process and convenient to produce.

The above is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above examples. It is to be understood that other modifications and variations which may be directly derived or contemplated by those skilled in the art without departing from the spirit and concepts of the present utility model are deemed to be included within the scope of the present utility model.

Claims (5)

1. The drainage motor with the aligning structure is characterized by comprising a machine shell (1) and a rotor (2), wherein an installation cavity (11) and an oil storage cavity (12) are sequentially arranged in the machine shell (1), the rotor (2) is coaxially and rotatably installed in the installation cavity (11), and a stator (14) matched with the rotor (2) is arranged on the machine shell (1);

a motor shaft (21) is coaxially arranged on the rotor (2), the output end of the motor shaft (21) penetrates through the shell (1) and extends to the outer side of the shell (1), the tail end of the motor shaft extends into the oil storage cavity (12), a front bearing (23) is sleeved on the motor shaft (21), the motor shaft (21) is arranged on the shell (1) through the front bearing (23), and an impeller (22) is coaxially arranged at the output end of the motor shaft (21);

the utility model discloses a self-aligning bearing, including installation cavity (11) and oil storage chamber (12), be provided with bearing mounting panel (13) between installation cavity (11) and oil storage chamber (12), install self-aligning bearing (3) on bearing mounting panel (13), self-aligning bearing (3) are including bearing housing (31), connecting plate (32), self-aligning board (33), the one end of bearing housing (31) runs through bearing mounting panel (13) and is connected with bearing mounting panel (13), bearing housing (31) cover is established on motor shaft (21), connecting plate (32) are installed and are kept away from the outside anchor ring of bearing housing (31) one end, the one end and the connecting plate (32) top of self-aligning board (33) are connected, and the other end is connected with bearing mounting panel (13), the axis of self-aligning board (33) and bearing housing (31) is nonparallel.

2. A drainage motor with aligning structure according to claim 1, wherein: at least three connecting plates (32) and at least three aligning plates (33) are arranged.

3. A drainage motor with aligning structure according to claim 1, wherein: the connecting plates (32) are uniformly distributed on the annular surface of the bearing sleeve (31).

4. A drainage motor with aligning structure according to claim 1, wherein: the self-aligning bearing (3) is made of engineering plastics.

5. A drainage motor with aligning structure according to claim 1, wherein: the included angle between the aligning plate (33) and the axis of the bearing sleeve (31) is 5-20 degrees.