CN202076903U

CN202076903U - Motor rotor

Info

Publication number: CN202076903U
Application number: CN2011201064642U
Authority: CN
Inventors: 王文扬
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-12
Filing date: 2011-04-12
Publication date: 2011-12-14
Anticipated expiration: 2021-04-12

Abstract

The utility model relates to a motor rotor. A rotor shaft sleeve is provided with a rotor iron core; two ends of the rotor iron core are provided with terminal rings; the rotor iron core is formed by the superposition of several rotor punching sheets; the rotor punching sheets are provided with bar holes distributed uniformly in a ring; the bar holes on the rotor punching sheets form a ring of bar groove positioned on the rotor iron core circumference after the superposition of several rotor punching sheets; the bar groove is matched tightly with rotor bars; and the two end rings and two ends of the motor bars have a die-casting integral structure, or are connected by a riveted joint. In the utility model, the motor performance can be guaranteed, the technology is simple, the work efficiency is high, and the production cost is reduced.

Description

Rotor

Technical field:

The utility model relates to a kind of rotor.

Background technology:

Motor is meant according to the law of electromagnetic induction realizes the conversion of electric energy or a kind of calutron of transmission, includes stator and rotor.At present, adopt copper casting rotor usually, in the guide groove that rotor punching is built up, carry out cast copper, can reduce the current circuit loss, improve electric efficiency.But it is poor to exist technology stability, influences motor performance, weak points such as production cost height thereby be easy to generate phenomenons such as bubble.In order to improve this phenomenon, people adopt and in the sliver groove that rotor punching is built up the copper sliver are set, at copper sliver two ends end ring is set, as the patent No.: 200920141813.7 disclosed rotors, the embedded copper sliver that is inserted with of sliver groove that is built up at rotor punching, be provided with at the two ends of rotor core and the fixing copper end ring of copper sliver welding, the copper end ring is provided with the sliver groove groove one to one on a circle and the rotor core, and the end intercalation of copper sliver is gone in this groove and welded with the copper end ring.This structure has the following disadvantages: the one, adopt to be welded to connect, just can reach welding process requirement after in welding process, needing rotor is heated to uniform temperature, make copper sliver and copper end ring that good welding power be arranged, or in welding process, produce a large amount of heats, cause rotor punching to be in superheat state and exert an influence and finally cause the decline of motor performance; The 2nd, the rotor of different model has difform copper sliver, and the groove on the copper end ring changes complex process along with the change of copper sliver shape; The 3rd, manual work, complex process, inefficiency are adopted in welding; The 4th, adopt and on heavy-duty motor, use copper end ring, production cost height.

Summary of the invention:

The purpose of this utility model provides that a kind of production technology is simple, production cost is low, can improve the rotor of electric efficiency.

The utility model is achieved in that

Rotor, outside armature spindle, be arranged with rotor core, two ends at rotor core are provided with end ring, described rotor core is to be formed by stacking by some rotor punchings, on rotor punching, offer the uniform sliver hole of a circle, sliver hole on the rotor punching forms in the superimposed back of rotor punching and is positioned at the circle of one on rotor core periphery sliver groove, and close-fitting is provided with the copper sliver in the sliver groove, and described two end ring and the two ends of copper sliver are that the integral structure of die casting or rivet is connected.

Above-mentioned riveted joint is connected to: offer on two end ring and the corresponding through hole of copper sliver shape, the two ends of copper sliver are riveted on the through hole.

Two above-mentioned end ring are copper end ring or aluminium end ring.

The outstanding compared to existing technology advantage of the utility model is:

1, the utility model is the moment moulding by the integral structure that is connected to die casting of copper sliver and end ring, and little to the influence of rotor punching, rotor did not produce thermal response, had guaranteed motor properties, and technology is simple, and high efficiency reduces production costs;

2, copper sliver of the present utility model is connected with the riveted joint that is connected to of end ring, and technology is simple, high efficiency;

3, end ring of the present utility model and copper sliver are in rotor runs up process, and end ring can not separate with the copper sliver and influence machine operation;

4, the utility model adopts and be provided with the copper sliver in rotor core, is set with end ring at the rotor core two ends, can reach energy-conservation effect;

5, end ring of the present utility model is copper end ring or aluminium end ring, and use aluminium end ring can effectively reduce production costs and not influence motor performance on heavy-duty motor;

6, the utility model is applicable to three-phase or monophase machine.

Description of drawings:

Fig. 1 is that sliver groove of the present utility model is skewed slot and the perspective view when the open slot;

Fig. 2 is that sliver groove of the present utility model is a skewed slot, the vertical view when being unkitted end ring;

Fig. 3 is that sliver groove of the present utility model is straight trough and the perspective view when remaining silent groove;

Fig. 4 is that the utility model sliver groove is a straight trough, the vertical view when being unkitted end ring;

Fig. 5 is that end ring of the present utility model is the partial cutaway schematic diagram that riveted joint is connected with rotor core;

Fig. 6 is that end ring of the present utility model and rotor core are the integrated partial cutaway schematic diagram of die casting.

Embodiment:

With specific embodiment the utility model is further described below, referring to Fig. 1-6:

Rotor, outside armature spindle 10, be arranged with rotor core 20, being provided with end ring 30 at the two ends of rotor core 20 forms, described rotor core 20 is to be formed by stacking by some rotor punchings, on rotor punching, offer the uniform sliver hole of a circle, sliver hole on the rotor punching forms in the superimposed back of rotor punching and is positioned at the circle of one on rotor core 20 peripheries sliver groove, close-fitting is provided with copper sliver 40 in the sliver groove, and described two end ring 30 and the two ends of copper sliver 40 are that the integral structure or the riveted joint of die casting is connected.The integral structure of die casting is the moment moulding, and little to the rotor punching influence, rotor did not produce thermal response, had guaranteed motor properties, had improved production efficiency, reduced production costs.

Above-mentioned riveted joint is connected to: offer on two end ring 30 and the corresponding through hole of copper sliver 40 shapes, the two ends of copper sliver 40 are riveted on the through hole.

Two above-mentioned end ring 30 are copper end ring or aluminium end ring, and aluminium end ring, copper end ring are applicable to low-power machine, and the aluminium end ring also is applicable to heavy-duty motor, low production cost can be arranged greatly and do not influence motor performance.

Sliver groove of the present utility model can be straight trough or skewed slot or open slot or the groove of remaining silent.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection range of the present utility model.

Claims

1. rotor, outside armature spindle, be arranged with rotor core, two ends at rotor core are provided with end ring, described rotor core is to be formed by stacking by some rotor punchings, on rotor punching, offer the uniform sliver hole of a circle, sliver hole on the rotor punching forms in the superimposed back of rotor punching and is positioned at the circle of one on rotor core periphery sliver groove, close-fitting is provided with the copper sliver in the sliver groove, it is characterized in that: described two end ring and the two ends of copper sliver are that the integral structure or the riveted joint of die casting is connected.

2. rotor according to claim 1 is characterized in that: described riveted joint is connected to: offer on two end ring and the corresponding through hole of copper sliver shape, the two ends of copper sliver are riveted on the through hole.

3. rotor according to claim 1 is characterized in that: described two end ring are copper end ring or aluminium end ring.