CN215498612U

CN215498612U - Motor with double bearings

Info

Publication number: CN215498612U
Application number: CN202022584728.7U
Authority: CN
Inventors: 梁振灯
Original assignee: Foshan Nanhai Gaotewei Electromechanical Co ltd
Current assignee: Foshan Nanhai Gaotewei Electromechanical Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2022-01-11
Anticipated expiration: 2030-11-10

Abstract

The utility model provides a motor with double bearings, which comprises a shell, a rear cover and a motor body, wherein the motor body comprises a motor rotor, the tail end of the motor rotor is arranged on the shell through two bearings arranged side by side, the rear cover comprises a bottom shell, the bottom shell is provided with a through hole, the outer edge of the bottom shell is also provided with a sunken groove, the shell is inserted into the groove to be matched, and the outer edge of the bottom shell is circumferentially provided with a plurality of connecting holes. Adopt two bearings that set up side by side to install electric motor rotor for electric motor rotor fixes a position through two bearings, and electric motor rotor is little with the clearance of bearing, thereby greatly reduced electric motor rotor's axle is beated, and when electric motor rotor rotated, electric motor rotor skew position was little, and then makes the motor during operation vibration little, finally leads to the motor noise low. The utility model adopts the angular contact bearing of the steel piece, reduces the runout of the motor rotor in the radial direction and the radial direction, and leads the motor to have long service life.

Description

Motor with double bearings

Technical Field

The utility model relates to the technical field of motors, in particular to a motor with double bearings.

Background

The motor is an electromagnetic device which converts or transmits electric energy according to the law of electromagnetic induction, or converts one form of electric energy into another form of electric energy. The motor is mechanical energy (commonly known as motor) with electric energy conversion, the inside of motor is including stator and rotor, the stator is fixed in on the motor casing, rotor and stator cooperation, the rotor can rotate round the stator, be connected through the bearing between the end that stretches out of rotor and the casing, traditional electric motor rotor is installed on the casing through a bearing, this kind of mounting structure, the rotor is at the during operation, its centre of a circle degree is poor, it is big to lead to the vibration of rotor, the noise is serious, moreover, traditional bearing adopts is the deep groove bearing, it has radial run-out, therefore the rotor can be for the casing along its radial movement, lead to the vibration more serious.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a motor with double bearings, wherein the motor rotor is arranged at the extending end of the motor rotor by adopting two bearings arranged side by side, so that the motor rotor is positioned by the two bearings, the straightness of the motor rotor is better, the gap between the motor rotor and the bearings is small, the radial runout of the motor rotor is greatly reduced, and when the motor rotor rotates, the deviated position of the motor rotor is small, so that the vibration of the motor during working is small, the noise of the motor during working is small, and the friction is small. In addition, the rear cover is provided with a groove, the shell is inserted into the groove, the sealing performance is improved, the waterproof performance is excellent, the angular contact bearing is adopted, the axial and radial jumping of the motor rotor is reduced, and the service life of the motor is prolonged.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an install motor of duplex bearing which characterized in that: including shell, back lid and motor body, motor body is including motor rotor, motor rotor installs on the shell through two bearings that set up side by side, the back lid is including the drain pan, the drain pan is equipped with the through-hole that power supply motor rotor stretches out with running through, the outward flange of drain pan still is equipped with a sunken recess, the shell cooperates in inserting this recess, drain pan outward flange circumference all is equipped with the polylith connecting hole, every the connecting hole inboard is equipped with the lug and is used for strengthening the intensity of drain pan, the drain pan inboard still is equipped with many strengthening ribs and is used for strengthening the intensity of drain pan.

Preferably, the recess is located inside the housing, so as to facilitate docking with the housing.

Preferably, the reinforcing rib is long and arranged along the radius direction of the bottom case.

Preferably, the groove gradually reduces in width toward the bottom thereof, and when the housing is engaged with the rear cover, the engaging portion forms a detour, thereby improving sealing performance and better waterproofing.

Preferably, the bearing is an angular contact bearing, which is more effective.

The utility model has the beneficial effects that:

the motor rotor is arranged at the extending end of the motor rotor by adopting two bearings side by side, so that the motor rotor is positioned by the two bearings, the straightness of the motor rotor is better, the gap between the motor rotor and the bearings is small, the radial runout of the motor rotor is greatly reduced, and when the motor rotor rotates, the deviated position of the motor rotor is small, so that the motor has small vibration during working, and the motor has small noise and friction during working. In addition, the rear cover is provided with a groove, the shell is inserted into the groove, the sealing performance is improved, the waterproof performance is excellent, the angular contact bearing is adopted, the axial and radial jumping of the motor rotor is reduced, and the service life of the motor is prolonged.

Drawings

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a left side view of the present embodiment;

FIG. 3 is a front view of the rear cover of the present embodiment;

fig. 4 is a sectional view of the rear cover of the present embodiment taken along the plane a-a.

Detailed Description

The technical solution of the present invention is described below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 4, the motor with dual bearings of the present invention includes a housing 1, a rear cover 2 and a motor body 3, wherein the motor body 3 is installed in the housing 1, one end of the housing 1 is closed, and the other end is open, the open end of the housing 1 is matched with the rear cover 2, and the rear cover 2 is made of steel material and has high strength. The motor body 3 comprises a motor rotor 4, the motor rotor 4 is rotatably arranged on the motor stator, the motor stator is fixedly arranged, the tail end of the motor rotor 4 is provided with a motor output shaft 41, the motor output shaft 41 is arranged on the shell 1 through two bearings 5 arranged side by side, namely the bearings 5 are fixed on the shell, the motor rotor 4 is inserted into the two bearings 5, and a buffer rubber cushion is arranged between the two bearings 5 to avoid the two bearings 5 from colliding with each other. The rear cover 2 comprises a bottom shell 21, a through hole 22 for the motor rotor 4 to extend out is arranged in the middle of the bottom shell 21 in a penetrating mode, a concave groove 23 is further formed in the outer edge of the bottom shell 21, the groove 23 is an annular groove 23, the outer portion of the groove is wide and the inner portion of the groove is narrow, the shell 1 is inserted into the groove 23 and matched with the bottom shell 21, a plurality of connecting holes 24 are formed in the circumferential direction of the outer edge of the bottom shell 21, the connecting holes 24 are used for bolts to penetrate through, and due to the fact that the connecting holes 24 are formed, protruding blocks 25 are arranged on the inner side of each connecting hole 24 and used for reinforcing the strength of the bottom shell 21, the protruding blocks 25 are fan-shaped and have six blocks which are evenly distributed, a plurality of reinforcing ribs 26 are further arranged on the inner side of the bottom shell 21 and are long in strip shapes and arranged along the radius direction of the bottom shell 21.

In particular, the recess 23 is located inside the housing 1, which facilitates the docking with the housing 1.

Specifically, the protrusion 25 and the stiffener 26 are located on the same side of the bottom case 21, so as to ensure that the other side of the bottom case 21 is relatively flat, thereby ensuring that the connection between the motor and the external component is not interfered.

Specifically, the groove 23 gradually reduces the groove width toward the bottom thereof, and when the housing 1 is matched with the rear cover 2, the combined part forms a roundabout, so that the sealing performance is improved, the water resistance is better realized, and the sealing strip can be plugged into the bottom thereof, so that the water resistance is further improved.

In particular, the bearing 5 is an angular contact bearing, and the bearing 5 has a better effect.

The utility model adopts two bearings 5 arranged side by side to install the motor rotor 4, can greatly reduce the radial run-out of the motor rotor 4, so that the motor has low noise and small vibration when in work, in addition, the back cover 2 is provided with the groove 23, the shell 1 is inserted into the groove 23 to be matched, a roundabout is formed at the matched part, the sealing performance is improved, the waterproof performance is excellent, the angular contact bearing adopting the steel piece has long service life, novel and beautiful appearance, exquisite appearance and small volume.

The motor rotor 4 is arranged at the extending end of the motor rotor 4 by adopting two bearings 5 which are arranged side by side, so that the motor rotor 4 is positioned by the two bearings 5, the straightness of the motor rotor 4 is better, the gap between the motor rotor 4 and the bearings 5 is small, the radial runout of the motor rotor 4 is greatly reduced, and when the motor rotor 4 rotates, the deviated position of the motor rotor 4 is small, so that the motor has small vibration during working, and the motor has small noise and friction during working. In addition, the rear cover 2 is provided with the groove 23, the shell 1 is inserted into the groove 23, the sealing performance is improved, the waterproof performance is excellent, the angular contact bearing is adopted, the axial and radial jumping of the motor rotor 4 is reduced, and the service life of the motor is prolonged.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", 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 the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides an install motor of duplex bearing, is including shell, back lid and motor body, its characterized in that: the motor body is including motor rotor, motor rotor installs on the shell through two bearings that set up side by side, the back lid is including the drain pan, the drain pan is equipped with the through-hole that power supply motor rotor stretches out with running through, the outward flange of drain pan still is equipped with a sunken recess, the shell cooperates in inserting this recess, drain pan outward flange circumference all is equipped with the polylith connecting hole, every the connecting hole inboard is equipped with the lug and is used for strengthening the intensity of drain pan, the drain pan inboard still is equipped with many strengthening ribs and is used for strengthening the intensity of drain pan.

2. A double-bearing-mounted motor according to claim 1, wherein: the groove is located inside the housing.

3. A double-bearing-mounted motor according to claim 1, wherein: the reinforcing ribs are long-strip-shaped and are arranged along the radius direction of the bottom shell.

4. A double-bearing-mounted motor according to claim 1, wherein: the groove gradually reduces towards the bottom of the groove.

5. A double-bearing-mounted motor according to claim 1, wherein: the bearing is an angular contact bearing.