CN212343456U

CN212343456U - Novel heat dissipation structure for balance ring of permanent magnet synchronous servo motor

Info

Publication number: CN212343456U
Application number: CN202020887194.2U
Authority: CN
Inventors: 何建军; 易志辉; 谭新德; 梁天亮
Original assignee: Suzhou Demac Motor Technology Co ltd
Current assignee: Suzhou Demac Motor Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-12
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses a novel heat dissipation structure of a balancing ring of a permanent magnet synchronous servo motor, which comprises a rotating shaft, an iron core sleeved outside the rotating shaft, and a balancing ring which is in interference fit and sleeved at the two ends of the iron core; the balancing ring comprises an annular body, a plurality of ventilation grooves circumferentially arranged on the annular body in a surrounding mode, and a plurality of ventilation openings arranged in the ventilation grooves at symmetrical positions, and is adjacent to the ventilation grooves, heat dissipation ribs are arranged between the ventilation grooves, and the ventilation openings are communicated with the heat dissipation space inside the iron core. The utility model discloses a surface temperature when effectively reducing the rotor acting promotes the motor performance.

Description

Novel heat dissipation structure for balance ring of permanent magnet synchronous servo motor

Technical Field

The utility model belongs to the technical field of the motor spare part, especially, relate to a novel balanced ring heat radiation structure of synchronous servo motor of permanent magnetism.

Background

In order to safely fix the rotor magnetic steel of the permanent magnet synchronous servo motor on the rotor core of the rotating shaft, the magnetic steel is usually fixed by non-magnetic material parts at two ends of the rotor core; when the motor is powered on, the rotor rotates to do work, the permanent magnet on the iron core continuously cuts the magnetic field, the surface temperature of the rotor iron core rises, the loss of the magnetic steel is increased, and the performance of the motor is directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem, and provide novel synchronous servo motor gimbal heat radiation structure of permanent magnetism to surface temperature when realizing effectively reducing the rotor acting promotes the motor performance. In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the novel heat dissipation structure for the balance ring of the permanent magnet synchronous servo motor comprises a rotating shaft, an iron core sleeved outside the rotating shaft and balance rings sleeved at two ends of the iron core in an interference fit manner; the balancing ring comprises an annular body, a plurality of ventilation grooves circumferentially arranged on the annular body in a surrounding mode, and a plurality of ventilation openings arranged in the ventilation grooves at symmetrical positions, and is adjacent to the ventilation grooves, heat dissipation ribs are arranged between the ventilation grooves, and the ventilation openings are communicated with the heat dissipation space inside the iron core.

Specifically, the vent is of a circular hole structure.

Specifically, the outer end part of the ventilation opening extends to the port of the ventilation groove to form an air passing channel.

Specifically, a group of positioning holes are further formed in the ventilation groove at symmetrical positions.

Specifically, the positioning hole and the positioning piece on the end face of the iron core are correspondingly fixedly arranged in an inserting manner.

Compared with the prior art, the utility model discloses synchronous servo motor gimbal heat radiation structure's of permanent magnetism beneficial effect mainly embodies:

through set up the heat dissipation muscle on the balancing ring, when the rotatory doing work of iron core, the heat dissipation muscle forms the fan effect, and the vent is effectively with the inside heat discharge of iron core, is favorable to the inside air cycle of motor, reaches the effect that effectively reduces electric motor rotor surface temperature, promotes the performance of motor, extension motor life.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention;

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

FIG. 3 is a schematic perspective view of the gimbal in this embodiment;

the figures in the drawings represent:

the device comprises a rotating shaft 1, an iron core 11, a balance ring 2, an annular body 21, a ventilation groove 22, a heat dissipation rib 23, a ventilation opening 3, an air passing channel 4, a positioning hole 5 and a positioning piece 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments.

Example (b):

referring to fig. 1-3, the present embodiment is a novel heat dissipation structure for a balancing ring of a permanent magnet synchronous servo motor, including a rotating shaft 1, an iron core 11 sleeved outside the rotating shaft 1, and a balancing ring 2 sleeved at two ends of the iron core 11 in an interference fit manner; the balance ring 2 comprises an annular body 21, a plurality of ventilation grooves 22 circumferentially arranged on the annular body 21 and a plurality of ventilation openings 3 arranged in the ventilation grooves 22 at symmetrical positions, and heat dissipation ribs 23 are arranged between the adjacent ventilation grooves 22.

In this embodiment, the ventilation opening 3 is a circular hole structure, and the ventilation opening 3 is communicated with the internal heat dissipation space of the iron core 11. The port where the outer end portion of the ventilation opening 3 extends to the ventilation groove 22 forms the air passing duct 4.

A group of positioning holes 5 are also symmetrically arranged in the ventilation groove 22. In this embodiment, the positioning hole 5 is a rectangular parallelepiped structure, and the positioning hole 5 is fixedly inserted into the positioning member 6 on the end surface of the iron core 11.

When using this embodiment, through set up heat dissipation muscle 23 on balance ring 2, when 11 rotatory doing work of iron core, heat dissipation muscle 23 forms the fan effect, and vent 3 effectively discharges 11 inside heats of iron core, is favorable to the inside air cycle of motor, reaches the effect that effectively reduces electric motor rotor surface temperature, promotes the performance of motor, extension motor life.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Novel balanced ring heat radiation structure of synchronous servo motor of permanent magnetism, its characterized in that: the balance ring is sleeved at two ends of the iron core in an interference fit manner; the balancing ring comprises an annular body, a plurality of ventilation grooves circumferentially arranged on the annular body in a surrounding mode, and a plurality of ventilation openings arranged in the ventilation grooves at symmetrical positions, and is adjacent to the ventilation grooves, heat dissipation ribs are arranged between the ventilation grooves, and the ventilation openings are communicated with the heat dissipation space inside the iron core.

2. The novel heat dissipation structure for the balance ring of the permanent magnet synchronous servo motor according to claim 1, is characterized in that: the ventilation opening is of a circular hole structure.

3. The novel heat dissipation structure for the balance ring of the permanent magnet synchronous servo motor according to claim 1, is characterized in that: the outer end part of the ventilation opening extends to the port of the ventilation groove to form an air passing channel.

4. The novel heat dissipation structure for the balance ring of the permanent magnet synchronous servo motor according to claim 1, is characterized in that: and a group of positioning holes are also formed in the ventilation groove at symmetrical positions.

5. The novel heat dissipation structure for the balance ring of the permanent magnet synchronous servo motor according to claim 4, is characterized in that: the positioning holes are correspondingly and fixedly arranged with the positioning pieces on the end surfaces of the iron cores in an inserting way.