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Damping ring for multi-section aluminum-casting rotor and processing method of aluminum-casting rotor

A technology of cast aluminum rotor and damping ring, which is applied in the manufacture of stator/rotor body, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc. and other problems, to achieve the effect of solving overflow and air bubbles, uniform force, and improving the quality of iron core lamination

Inactive Publication Date: 2017-05-24
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some special occasions, such as precision machine tools, etc., the vibration and noise requirements of the motor are extremely strict, and the conventional single chute structure can no longer meet the requirements. At this time, the rotor is usually divided into two or four chute sections to achieve better performance. Effect
The conventional manufacturing method for multi-segment rotors is to cast each segment separately and then weld each segment into a whole. The manufacturing process is more complicated and the processing is more difficult, and the quality of cast aluminum rotors is difficult to guarantee.

Method used

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  • Damping ring for multi-section aluminum-casting rotor and processing method of aluminum-casting rotor
  • Damping ring for multi-section aluminum-casting rotor and processing method of aluminum-casting rotor
  • Damping ring for multi-section aluminum-casting rotor and processing method of aluminum-casting rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a damping ring for a multi-segment cast aluminum rotor, the damping ring includes an outer aluminum ring and an inner silicon steel ring 22 . The aluminum ring is provided with cast aluminum through-slots 211 , and several cast-aluminum through-slots 211 are equidistantly distributed in a ring structure; the area between two adjacent cast-aluminum through-slots forms grooved ribs 212 . The plurality of cast aluminum through-slots 211 form the same number of slotted ribs 212 as the number of cast aluminum through-slots 211, and the number of slotted ribs 212 is a divisor of the number of rotor slots.

[0025] Preferably, the cast aluminum channel 211 has a fan-shaped structure, and several cast aluminum channels are equidistantly distributed to form an annular structure concentric with the center of the damping ring.

[0026] The outer diameter of the damping ring is consistent with the outer diameter of the rotor. The width of the grooved rib...

Embodiment 2

[0028] Such as figure 2 As shown, this embodiment includes two sections of the first rotor core 1 and the second rotor core 3 of equal length. When stacking, the first rotor core 1 is stacked first, and then the damping ring 2 and the second rotor core 3 are stacked. Go up to form a whole to ensure that the grooved ribs and the iron core groove are misaligned. When casting aluminum, the aluminum water is injected from the end of the first rotor core 1, and the aluminum water enters through the fan-shaped cast aluminum channel of the concentric aluminum ring of the damping ring 2 when passing through the interface between the first rotor core 1 and the second rotor core 3 Rotor core 3. After the casting is completed, aluminum water fills the fan-shaped cast aluminum channel of the concentric aluminum ring to form a complete aluminum ring, connects the guide bars of each section of the rotor into a whole, and forms a cast aluminum end at the end of the whole Ring 4, the castin...

Embodiment 3

[0039] Such as image 3 As shown, this embodiment includes four sections of the same length as the first rotor core 1, the second rotor core 3, the third rotor core 5, the fourth rotor core 7, the first damping ring 2, the second damping ring 4, the third Damping ring 6, when stacking, first stack the first rotor core 1 of the rotor, then stack the first damping ring 2 and the second rotor core 3, and then stack the second damping ring 4 and the third rotor core 5 Go up, and finally the third damping ring 6 and the fourth rotor core 7 are laminated to form a whole, so as to ensure that the grooved ribs and the iron core grooves are misaligned. When casting aluminum, the aluminum water is injected from the end of the first rotor core 1, and when the aluminum water passes through the interface between the first rotor core 1 and the second rotor core 3, it passes through the fan-shaped cast aluminum channel of the first damping ring 2 concentric aluminum ring Enter the second ro...

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Abstract

The invention discloses a damping ring for a multi-section aluminum-casting rotor. The damping ring comprises an outer-layer aluminum ring and an inner-layer silicon-steel ring, wherein the aluminum ring is provided with aluminum-casting through grooves which are distributed in a ring-shaped structure at equal intervals; a grooving rib is formed between two adjacent aluminum-casting through grooves; and the quantity of the grooving ribs is an approximate number of the quantity of rotor groove bodies. The invention also discloses a method for processing the multi-section aluminum-casting rotor by using the damping ring, and a stator. According to the damping ring, the method and the stator disclosed by the invention, the uniform stressing on a punching sheet with superimposed iron cores is guaranteed, the superimposition quality of the iron cores is improved, the overflowing and the bubbles of aluminum are solved, and the quality and the reliability of the aluminum-casting rotor are improved.

Description

technical field [0001] The invention relates to the technical field of electromagnetic devices, in particular to a damping ring for a multi-stage cast aluminum rotor and a processing method for the cast aluminum rotor. Background technique [0002] The motor chute can effectively weaken the tooth harmonic magnetic field, thereby reducing vibration and noise, so it is widely used. In some special occasions, such as precision machine tools, etc., the vibration and noise requirements of the motor are extremely strict, and the conventional single chute structure can no longer meet the requirements. At this time, the rotor is usually divided into two or four chute sections to achieve better performance. Effect. The conventional manufacturing method for multi-segment rotors is to cast each segment separately and then weld each segment into a whole. The manufacturing process is more complicated and the processing is more difficult, and the quality of cast aluminum rotors is diffic...

Claims

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Application Information

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IPC IPC(8): H02K1/26H02K15/02
CPCH02K1/265H02K15/024
Inventor 鲍晓华王春雨汪朗徐威方金龙
Owner HEFEI UNIV OF TECH
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