CN217335298U

CN217335298U - Rare earth permanent magnet synchronous motor end cover

Info

Publication number: CN217335298U
Application number: CN202220213421.2U
Authority: CN
Inventors: 邹联石
Original assignee: Ganzhou Nanci Electromechanical Technology Co ltd
Current assignee: Ganzhou Nanci Electromechanical Technology Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-08-30
Anticipated expiration: 2032-01-26

Abstract

The utility model relates to a motor end cover field provides a tombarthite PMSM end cover. The motor cover plate comprises a cover plate, wherein a connecting convex plate is arranged at the outer side edge of the cover plate, a motor shaft sleeve is arranged in the middle of the cover plate, and a plurality of groups of vent grooves are arranged in the cover plate at equal angular intervals; the outer side of the motor shaft sleeve is coaxially sleeved with a rotary drum; a plurality of groups of rotating vane plates are arranged on the outer side of the rotating drum at equal angle intervals, the rotating vane plates can cover the air channel, and the rotating drum rotates at a fixed angle relative to the motor shaft sleeve; one side of the rotating blade plate is connected with a traction spring, and the other end of the traction spring is fixed on the cover plate; the middle of rotary drum fixedly connected with bearing sleeve, bearing sleeve inserts in the bottom of motor shaft sleeve, and bearing sleeve is used for the bearing of fixed electric motor rotor. The utility model has the advantages that: the motor end cover is provided with a ventilation groove for heat dissipation, the ventilation groove can be shielded by a rotatable rotating blade plate, and when the motor is in standby, the rotating blade plate shields and closes the ventilation groove to prevent dust and water; when the motor operates, the rotating blade plate rotates, and the vent groove is opened to dissipate heat.

Description

Rare earth permanent magnet synchronous motor end cover

Technical Field

The utility model relates to a motor end cover field, in particular to tombarthite PMSM end cover.

Background

The motor end cover is used for fixing and supporting the motor rotating shaft, and a motor shaft sleeve is generally arranged in the middle of the motor end cover and used for penetrating through the motor shaft. The general simple structure of traditional motor end cover, the preceding fender lid of end cover generally forms for whole punching press, and some motor end covers need for the motor heat dissipation, can set up the air channel on the end cover and dispel the heat.

But the existence of the motor vent groove also sacrifices the dustproof and waterproof performance of the motor, and the vent groove can not be closed when the motor is used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tombarthite PMSM end cover, mainly used solve the problem of the dustproof and waterproof performance of motor has been sacrificed when the air channel that the heat dissipation was used is seted up to the motor end cover.

The above technical problem of the present invention can be solved by the following technical solutions:

the motor cover comprises a cover plate, wherein a connecting convex plate connected with a motor shell is vertically arranged at the edge of the outer side of the cover plate, a cylindrical motor shaft sleeve is arranged in the middle of the cover plate, the motor shaft sleeve and the connecting convex plate are positioned at the same side of the cover plate, and a plurality of groups of vent grooves are arranged on the cover plate at equal angle intervals relative to the central axis of the motor shaft sleeve;

a rotating drum is coaxially sleeved on the outer side of the motor shaft sleeve;

a plurality of groups of rotating vane plates are arranged at the bottom of the outer side of the rotating drum at equal angular intervals relative to the central axis of the rotating drum, the rotating vane plates can cover the ventilation grooves, and the rotating drum rotates relative to the motor shaft sleeve at a fixed angle;

one side of the rotating blade plate is connected with a traction spring, and the other end of the traction spring is fixed on the cover plate;

the middle of the rotating drum is fixedly connected with a bearing sleeve, the bearing sleeve is inserted into the bottom of the motor shaft sleeve, and the bearing sleeve is used for fixing a bearing of a motor rotor.

Preferably, the side wall of the motor shaft sleeve is oppositely provided with a pair of through grooves;

the bottom of the rotary drum is provided with a connecting plate, and when the rotary drum is sleeved on the motor shaft sleeve, the connecting plate is inserted into the bottom of the motor shaft sleeve from the through groove;

the bearing sleeve is fixed in the middle of the connecting plate.

Preferably, the bottom of the motor shaft sleeve is provided with a pair of limiting grooves, and when the rotary drum rotates, the connecting plate can rotate into the limiting grooves from the through groove.

Preferably, the top end of the motor shaft sleeve is provided with a pair of top grooves, the motor shaft sleeve is fixedly connected with a bearing partition plate through the top grooves, and the top end of the bearing partition plate sleeved with the motor shaft is also provided with a bearing connected with a motor rotor.

Preferably, the cover plate is circular, and the rotating vane plate and the vent groove are both fan-shaped.

Preferably, there are 4 ventilation slots, 4 rotary vane plates, and the angles of the ventilation slots and the rotary vane plates are both 45 °.

The utility model has the advantages that: the motor end cover is provided with a ventilation groove for heat dissipation, the ventilation groove can be shielded by a rotatable rotating blade plate, and when the motor is in standby, the rotating blade plate shields and closes the ventilation groove to prevent dust and water; when the motor operates, the rotating blade plate rotates, and the vent groove is opened to dissipate heat.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the assembly structure of the component connecting relief plate and the cover plate of the present invention;

fig. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic view of the assembly structure of the rotary blade plate and the rotary drum of the present invention;

FIG. 5 is a schematic structural view of the component connection plate of the present invention;

FIG. 6 is a schematic view of a component bearing sleeve of the present invention;

the symbols in the figure illustrate:

1. the device comprises a connecting convex plate, a cover plate, a motor shaft sleeve, a top groove, a through groove, a limiting groove, a rotating drum, a rotating vane plate, a connecting plate, a ventilating groove, a bearing sleeve, a bearing clapboard and a traction spring, wherein the connecting convex plate is 2, the cover plate is 3, the motor shaft sleeve is 4, the top groove is 5, the through groove is 6, the limiting groove is 7, the rotating drum is 8, the connecting plate is 9, the ventilating groove is 10, the bearing sleeve is 11, the bearing clapboard is 12, and the traction spring is 13.

Detailed Description

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

Example (b):

the rare earth permanent magnet synchronous motor end cover of the embodiment, as shown in fig. 2, includes a circular cover plate 2, a connection convex plate 1 connected with a motor housing is vertically arranged at the outer side edge of the cover plate 2, a cylindrical motor shaft sleeve 3 is arranged in the middle of the cover plate 2, and the motor shaft sleeve 3 and the connection convex plate 1 are located at the same side of the cover plate 2.

4 groups of fan-shaped ventilation grooves 10 are arranged on the cover plate 2 at equal 45-degree intervals relative to the central axis of the motor shaft sleeve 3.

As shown in fig. 1 and 3, the motor sleeve 3 is coaxially sleeved with a rotating drum 7 at the outer side.

4 fan-shaped rotating vane plates 8 are arranged at the bottom of the outer side of the rotating drum 7 at equal 45-degree intervals relative to the central axis of the rotating drum 7, and the air channel 10 can be covered by the rotating vane plates 8.

One side of the rotating blade plate 8 is connected with a traction spring 13, and the other end of the traction spring 13 is fixed on the cover plate 2. When the louver 8 covers the vent groove 10, the pulling spring 13 is in a stretched state.

As shown in fig. 3-4, the bottom of the rotating drum 7 is provided with a connecting plate 9, a bearing sleeve 11 is fixedly connected to the middle of the rotating drum 7, and the bearing sleeve 11 is fixed to the middle of the connecting plate 9.

A pair of through grooves 5 are oppositely arranged on the side wall of the motor shaft sleeve 3; when the rotary drum 7 is sleeved on the motor shaft sleeve 3, the connecting plate 9 is inserted into the bottom of the motor shaft sleeve 3 from the through groove 5, the bearing sleeve 11 is inserted into the bottom of the motor shaft sleeve 3, and the bearing sleeve 11 is used for fixing a bearing of a motor rotor.

As shown in fig. 2, the bottom of the motor shaft sleeve 3 is provided with a pair of limiting grooves 6, and when the rotary drum 7 rotates, the connecting plate 9 can rotate into the limiting grooves 6 from the through groove 5, so that the rotary drum 7 rotates at a fixed angle with respect to the motor shaft sleeve 3.

Wherein, a pair of top groove 4 has been seted up on the top of motor shaft sleeve 3, and motor shaft sleeve 3 passes through top groove 4 fixedly connected with bearing baffle 12, and motor shaft sleeve 3 also is provided with the bearing of connecting motor rotor on the top of bearing baffle 12.

The bearing external diameter in the bearing sleeve 11 is less than the bearing external diameter at motor shaft sleeve 3 top, and the internal diameter of upper and lower two sets of bearings is the same, all is connected to the rotor shaft of motor simultaneously.

In use, the connecting plate 9 of the rotary drum 7 faces the through groove 5 of the motor shaft sleeve 3 to sleeve the rotary drum 7 into the motor shaft sleeve 3, and then one end of the traction spring 13 is connected with the rotary vane plate 8 and the other end is connected with the cover plate 2.

The bearing sleeve 11 is then bolted in the middle of the connecting plate 9, after which a bearing is fixed in the bearing sleeve 11.

Then, the bearing partition plate 12 is fixed on the top groove 4 of the motor shaft sleeve 3, and then a group of bearings is also fixed on the top of the motor shaft sleeve 3, which is separated from the motor shaft sleeve 3 by the bearing partition plate 12.

The motor end cover of this embodiment is thus assembled. The assembly of the motor is then performed. The rotor shaft of the motor is inserted into two bearings at the upper end and the lower end of the motor shaft sleeve 3 of the motor end cover. When the rotor shaft of the motor rotates, the rotor shaft rotates under the limit of the bearing, but the bearing at the bottom of the end cover is fixed in the bearing sleeve 11, and the bearing sleeve 11 is fixed on the rotary drum 7.

When the rotor shaft rotates, the bearing has a certain rolling friction force, so when the rotary drum 7 is not completely fixed, the bearing drives the rotary drum 7 to rotate. And the rotary drum 7 rotates in the outside of the motor shaft sleeve 3, and in the rotating process of the rotary drum 7, the connecting plate 9 rotates into the limiting groove 6 from the through groove 5, and finally the connecting plate 9 is limited and fixed in the limiting groove 6.

When the rotary drum 7 rotates, the rotary drum 7 synchronously drives the rotary vane plate 8 to rotate, so that the rotary vane plate 8 opens the shielded ventilation groove 10 for heat dissipation.

The present invention is not limited to the above embodiments, and the above embodiments are only examples of the present invention, and it is easy for those skilled in the art to make various modifications or variations based on the application method and principle of the present invention, and the above embodiments are not limited to the structures described in the present invention.

Claims

1. A rare earth permanent magnet synchronous motor end cover comprises a cover plate (2), wherein a connecting convex plate (1) connected with a motor shell is vertically arranged at the outer side edge of the cover plate (2), a cylindrical motor shaft sleeve (3) is arranged in the middle of the cover plate (2), and the motor shaft sleeve (3) and the connecting convex plate (1) are positioned at the same side of the cover plate (2), and is characterized in that a plurality of groups of vent grooves (10) are arranged at equal angular intervals on the cover plate (2) relative to the central axis of the motor shaft sleeve (3);

a rotating drum (7) is coaxially sleeved on the outer side of the motor shaft sleeve (3);

a plurality of groups of rotating vane plates (8) are arranged at the bottom of the outer side of the rotating drum (7) at equal angle intervals relative to the central axis of the rotating drum (7), the ventilating grooves (10) can be covered by the rotating vane plates (8), and the rotating drum (7) rotates relative to the motor shaft sleeve (3) at a fixed angle;

one side of the rotating vane plate (8) is connected with a traction spring (13), and the other end of the traction spring (13) is fixed on the cover plate (2);

the middle of the rotating cylinder (7) is fixedly connected with a bearing sleeve (11), the bearing sleeve (11) is inserted into the bottom of the motor shaft sleeve (3), and the bearing sleeve (11) is used for fixing a bearing of a motor rotor.

2. The rare earth permanent magnet synchronous motor end cover according to claim 1, wherein a pair of through grooves (5) are oppositely formed on the side wall of the motor shaft sleeve (3);

a connecting plate (9) is arranged at the bottom of the rotary drum (7), and when the rotary drum (7) is sleeved on the motor shaft sleeve (3), the connecting plate (9) is inserted into the bottom of the motor shaft sleeve (3) from the through groove (5);

the bearing sleeve (11) is fixed in the middle of the connecting plate (9).

3. The rare earth permanent magnet synchronous motor end cover according to claim 2, wherein a pair of limiting grooves (6) are formed in the bottom of the motor shaft sleeve (3), and when the rotary drum (7) rotates, the connecting plate (9) can rotate into the limiting grooves (6) from the through groove (5).

4. The rare earth permanent magnet synchronous motor end cover according to claim 1, wherein a pair of top grooves (4) are formed in the top end of the motor shaft sleeve (3), the motor shaft sleeve (3) is fixedly connected with a bearing partition plate (12) through the top grooves (4), and a bearing connected with a motor rotor is also arranged on the top end of the bearing partition plate (12) of the motor shaft sleeve (3).

5. End cover of rare earth permanent magnet synchronous machine according to claim 1, characterized in that the cover plate (2) is circular and the rotating vane plate (8) and the ventilation slot (10) are both fan-shaped.

6. The rare earth permanent magnet synchronous motor end cover according to claim 1, characterized in that the number of the vent grooves (10) is 4, the number of the rotating vane plates (8) is 4, and the angles of the vent grooves (10) and the rotating vane plates (8) are 45 degrees.