CN215956148U

CN215956148U - Novel motor rotor set

Info

Publication number: CN215956148U
Application number: CN202122521082.2U
Authority: CN
Inventors: 杜艳
Original assignee: Wuxi Mingfeng Electromechanical Technology Co ltd
Current assignee: Wuxi Mingfeng Electromechanical Technology Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-03-04
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses a novel motor rotor set, comprising: rotor core, the inside fixedly connected with pivot of rotor core, logical groove has been seted up at the pivot middle part, the through-hole has been seted up to the pivot inside, rotor core both ends fixedly connected with end links, the inside fixed permanent magnet that is equipped with that inlays of rotor core, end link one side integrated into one piece has the flabellum, the equal fixedly connected with bearing in pivot both ends, the inside fixedly connected with magnetism-isolating pipe that runs through of rotor core. This application is when using, and the heat on the rotor core outwards disperses from the inside through-hole of pivot and logical groove, and the rotor core can give off the heat through the heat dissipation air vent, again by flabellum and fan discharge, promotes inside heat dissipation, increases the heat-sinking capability.

Description

Novel motor rotor set

Technical Field

The utility model relates to the technical field of motor rotors, in particular to a novel motor rotor set.

Background

When the motor normally operates, theoretically, the rotor has no fundamental wave loss, the temperature rise of the rotor should be low, but in practice, the rotor generates heat and the temperature rise is increased due to inevitable problems of magnetic steel eddy current loss, harmonic loss and the like. If the heat dissipation of the motor rotor is not good, the temperature of the magnetic steel can rise, the counter potential can be reduced, the motor current is large, and the motor work is influenced and even the motor is burnt out.

In the prior art, the two ends of the rotating shaft and the rotor of the motor are not ventilated, a small part of rotors of a motor plant are provided with ventilation holes, the rotating shaft and the rotors are naturally cooled, and the magnetic steel cannot be radiated, so that the overall performance of the motor is influenced.

To this end, we propose a new motor rotor set.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a novel motor rotor set to solve the problems set forth above in the background art.

In order to achieve the purpose, the utility model provides the following technical proposal,

novel motor rotor group includes: rotor core, the inside fixedly connected with pivot of rotor core, logical groove has been seted up at the pivot middle part, the through-hole has been seted up to the pivot inside, rotor core both ends fixedly connected with end links, the inside fixed permanent magnet that is equipped with that inlays of rotor core, end link one side integrated into one piece has the flabellum, the equal fixedly connected with bearing in pivot both ends, the inside fixedly connected with magnetism-isolating pipe that runs through of rotor core.

By adopting the technical scheme: the heat on the rotor core is outwards dispersed from the through hole and the through groove in the rotating shaft and then blown out by the fan blades, so that the internal heat dissipation is improved, and the heat dissipation capacity is improved.

Preferably, one side of the end ring is fixedly connected with a counterweight column through threads, and the surface of the end ring of the counterweight column is uniformly provided with at least eight counterweight columns.

By adopting the technical scheme: and performing weighting or de-weighting correction according to the weighting condition to start the dynamic balance action.

Preferably, one end of the rotating shaft is fixedly connected with a fan, and the fan is in a drum type.

By adopting the technical scheme: the heat dissipation capacity is increased by exhausting air through the fan.

Preferably, the edges of the through grooves are of a bevel edge structure.

By adopting the technical scheme: the drainage effect is achieved, and heat dissipation is facilitated.

Preferably, the end part of the rotor core is provided with penetrating heat dissipation vent holes, and at least eight groups of the heat dissipation vent holes are uniformly arranged on the rotor core in an annular shape; and the heat dissipation vent hole is set to be a round hole, and the aperture of the round hole is not less than 3 mm.

By adopting the technical scheme: and the ventilation property of the rotor core is increased, and the heat dissipation is convenient.

Preferably, the permanent magnet uses the pivot as the center and is the annular four groups of evenly being provided with, the permanent magnet is tangential.

By adopting the technical scheme: the PMSM magnetic leakage coefficient of the tangential structure is large, isolation measures need to be taken, the magnetic flux of each pole is large, the number of poles is large, and the reluctance torque is large.

Preferably, the through grooves are symmetrically arranged in two groups by taking the rotating shaft as a center, and the bottoms of the through grooves are communicated with the through holes.

By adopting the technical scheme: the internal airflow is ventilated through the through grooves and the through holes, and the ventilation efficiency is further increased.

Preferably, the magnetism isolating pipe is an iron pipe.

By adopting the technical scheme: the iron pipe plays the roles of magnetic conduction, magnetism blocking and heat conduction.

Compared with the prior art, the utility model has the beneficial effects that:

this application is when using, and the heat on the rotor core outwards disperses from the inside through-hole of pivot and logical groove, and the rotor core can give off the heat through the heat dissipation air vent, again by flabellum and fan discharge, promotes inside heat dissipation, increases the heat-sinking capability.

Drawings

Fig. 1 is a schematic perspective view of a rotor set of a novel motor of the present invention;

FIG. 2 is a schematic diagram of a front view structure of a rotor core of the novel motor rotor set according to the present invention;

FIG. 3 is a schematic perspective view of a rotor assembly of the novel motor of the present invention;

fig. 4 is a schematic view of a sectional structure of a rotating shaft of the rotor set of the novel motor.

In the figure: 1. a rotating shaft; 12. a through hole; 13. a through groove; 2. a rotor core; 3. an end ring; 31. a fan blade; 32. a counterweight column; 33. a heat dissipating vent; 4. a permanent magnet; 5. a bearing; 6. a magnetism isolating pipe; 7. a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1, the present invention provides a technical solution:

a filtration device for nephrology department comprising: rotor core 2, rotor core 2 inside fixedly connected with pivot 1, logical groove 13 has been seted up at 1 middle part of pivot, through-hole 12 has been seted up to 1 inside of pivot, 2 both ends fixedly connected with end links 3 of rotor core, 2 inside fixed inlays and is equipped with permanent magnet 4 of rotor core, 3 one side integrated into one piece of end links have flabellum 31, the equal fixedly connected with bearing 5 in 1 both ends of pivot, 2 inside fixedly connected with magnetism insulating tube 6 that runs through of rotor core.

As shown in fig. 1-4, a counterweight column 32 is fixedly connected to one side of the end ring 3 through a thread, at least eight counterweight columns 32 are uniformly arranged on the surface of the end ring 3, and are used for weighting or weight-removing correction according to a counterweight condition, and starting a state balance function, a fan 7 is fixedly connected to one end of the rotating shaft 1, the fan 7 is in a drum type, exhausts air through the fan 7 to increase heat dissipation capacity, the edge of the through groove 13 is in a bevel edge structure to play a role in drainage and facilitate heat dissipation, a penetrating heat dissipation vent hole 33 is formed in the end of the rotor core 2, and at least eight groups of heat dissipation vent holes 33 are uniformly arranged on the rotor core 2 in an annular shape; and heat dissipation air vent 33 sets up to the round hole, and the aperture of this round hole is not less than 3mm, increases rotor core 2 ventilation gas permeability, convenient heat dissipation, permanent magnet 4 uses pivot 1 to be the annular and evenly is provided with four groups as the center, permanent magnet 4 is the tangential, and the PMSM magnetic leakage coefficient of tangential structure is big, needs to take isolation measures, and every utmost point magnetic flux is big, and the number of poles is many, and the reluctance torque is big, it uses pivot 1 to be provided with two sets ofly as central symmetry to lead to groove 13, just the bottom that leads to groove 13 all communicates with through-hole 12, makes inside air current ventilate through leading to groove and through-hole, further increases ventilation efficiency, magnetism-isolating pipe 6 sets up to the iron pipe, and the iron pipe plays magnetic conduction, keeps off magnetism, the effect of heat conduction.

In conclusion, this application is when using, and the heat on rotor core 2 outwards disperses from the through-hole and the logical groove 13 of pivot 1 inside, and rotor core 2 can distribute the heat through heat dissipation air vent 33, discharges by flabellum 31 and fan 7 again, promotes inside heat dissipation, increases the heat-sinking capability.

The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Novel motor rotor group, its characterized in that includes: rotor core (2), rotor core (2) inside fixedly connected with pivot (1), logical groove (13) have been seted up at pivot (1) middle part, through-hole (12) have been seted up to pivot (1) inside, rotor core (2) both ends fixedly connected with end links (3), rotor core (2) inside fixed the inlaying is equipped with permanent magnet (4), end links (3) one side integrated into one piece has flabellum (31), the equal fixedly connected with bearing (5) in pivot (1) both ends, rotor core (2) inside fixedly connected with that runs through separates magnetron (6).

2. The new electric motor rotor set as claimed in claim 1, characterized in that: and one side of the end ring (3) is fixedly connected with a counterweight column (32) through threads, and the surface of the end ring (3) of the counterweight column (32) is uniformly provided with at least eight counterweight columns.

3. The new electric motor rotor set as claimed in claim 1, characterized in that: one end of the rotating shaft (1) is fixedly connected with a fan (7), and the fan (7) is of a drum type.

4. The new electric motor rotor set as claimed in claim 1, characterized in that: the edge of the through groove (13) is of a bevel edge structure.

5. The new electric motor rotor set as claimed in claim 1, characterized in that: the end part of the rotor core (2) is provided with penetrating heat dissipation vent holes (33), and at least eight groups of the heat dissipation vent holes (33) are uniformly arranged on the rotor core (2) in an annular shape; and the heat dissipation vent hole (33) is set to be a round hole, and the aperture of the round hole is not less than 3 mm.

6. The new electric motor rotor set as claimed in claim 1, characterized in that: the permanent magnet (4) is annularly and uniformly provided with four groups by taking the rotating shaft (1) as the center, and the permanent magnet (4) is tangential.

7. The new electric motor rotor set as claimed in claim 1, characterized in that: the through grooves (13) are symmetrically arranged in two groups by taking the rotating shaft (1) as a center, and the bottoms of the through grooves (13) are communicated with the through holes (12).

8. The new electric motor rotor set as claimed in claim 1, characterized in that: the magnetism isolating pipe (6) is an iron pipe.