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Double-excitation double-modulation disc type permanent magnet gear

A double-modulation, double-excitation technology, applied to permanent magnet clutches/brakes, electric brakes/clutches, electrical components, etc., can solve the problems of low torque density operation efficiency, large axial magnetic flux leakage, etc., and achieve improved torque Density, increased torque density, and increased air gap magnetic density

Pending Publication Date: 2022-01-28
DALIAN JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention mainly solves the technical problems of the current disc permanent magnet gear in the prior art, such as large axial magnetic flux leakage, low torque density and low operating efficiency, and proposes a double excitation and double modulation disc permanent magnet gear, which can increase the Gap flux density, improving the output torque and torque density of permanent magnet gears

Method used

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  • Double-excitation double-modulation disc type permanent magnet gear
  • Double-excitation double-modulation disc type permanent magnet gear
  • Double-excitation double-modulation disc type permanent magnet gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] As shown in Figure 1, the double-excitation double-modulation disc permanent magnet gear provided by the embodiment of the present invention adopts the first structural form. The first structural form adopts the high-speed rotor assembly, the inner magnetic ring assembly, the low-speed rotor assembly and the outer magnetic ring assembly arranged in sequence. A three-layer air gap is formed between the high-speed rotor assembly, the inner magnetic ring assembly, the low-speed rotor assembly and the outer magnetic ring assembly.

[0084] The high-speed rotor assembly includes: a high-speed rotor base plate 1 and high-speed permanent magnets 2; end face;

[0085] The inner magnetic ring assembly includes: the inner magnetic pole piece 3, the inner magnetic permanent magnet 5 and the inner magnetic substrate 4; the inner magnetic pole piece 3 and the inner magnetic permanent magnet 5 have the same number, so The internal magnetic pole pieces 3 and the internal magnetic pe...

Embodiment 2

[0097] As shown in Figure 2, the double-excitation double-modulation disc permanent magnet gear provided by the embodiment of the present invention adopts the second structural form. The second structural form adopts a high-speed rotor assembly, an inner magnetic ring assembly, a low-speed rotor assembly and an outer magnetic ring assembly arranged in sequence. A three-layer air gap is formed between the high-speed rotor assembly, the inner magnetic ring assembly, the low-speed rotor assembly and the outer magnetic ring assembly.

[0098] The high-speed rotor assembly is the same as the first structure, including: a high-speed rotor base plate 1 and high-speed permanent magnets 2; Inlaid on the end face of the high-speed rotor substrate 1;

[0099] The internal magnetic adjustment ring assembly includes: internal magnetic adjustment pole pieces 3 and internal magnetic adjustment substrates 4; the inner magnetic adjustment pole pieces 3 are evenly arranged along the circumfere...

Embodiment 3

[0110] As shown in Figure 3, the double-excitation double-modulation disc permanent magnet gear provided by the embodiment of the present invention adopts the third structural form. The third structural form adopts the high-speed rotor assembly, the inner magnetic ring assembly, the low-speed rotor assembly and the outer magnetic ring assembly arranged in sequence. A three-layer air gap is formed between the high-speed rotor assembly, the inner magnetic ring assembly, the low-speed rotor assembly and the outer magnetic ring assembly.

[0111] The high-speed rotor assembly includes: a high-speed rotor base plate 1, a high-speed permanent magnet 2, and a high-speed magnetic pole piece 12; closely embedded in the end face of the high-speed rotor substrate 1;

[0112] The internal adjustment magnetic ring assembly is the same as the second structure, including: the internal adjustment magnetic pole piece 3 and the inner magnetic adjustment substrate 4; the inner adjustment magnet...

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Abstract

The invention relates to the technical field of magnetic transmission, and provides a double-excitation and double-modulation disc type permanent magnet gear. The double-excitation and double-modulation disc type permanent magnet gear comprises a high-speed rotor assembly, an inner adjusting magnetic ring assembly, a low-speed rotor assembly and an outer adjusting magnetic ring assembly. Three layers of air gaps are formed among the high-speed rotor assembly, the inner adjusting magnetic ring assembly, the low-speed rotor assembly and the outer adjusting magnetic ring assembly; the high-speed rotor assembly, the inner adjusting magnetic ring assembly, the low-speed rotor assembly and the outer adjusting magnetic ring assembly are arranged in sequence; or the external adjusting magnetic ring assembly, the high-speed rotor assembly, the internal adjusting magnetic ring assembly and the low-speed rotor assembly are arranged in sequence. The double-excitation double-modulation disc type permanent magnet gear adopts a first structural form, a second structural form, a third structural form or a fourth structural form. The air gap flux density can be increased, and the output torque and the torque density of the permanent magnet gear are improved.

Description

technical field [0001] The invention relates to the technical field of magnetic transmission, in particular to a double-excitation double-modulation disc-type permanent magnet gear. Background technique [0002] Mechanical gears are currently the most widely used variable speed transmission device, and their main function is to transmit the movement and power of the mechanism. Although mechanical gears have the advantages of simple structure, large transmission torque, and high transmission efficiency, because they use direct hard coupling to transmit speed and torque, there are inevitably defects such as friction, wear, pitting, and gluing. Cracked or broken teeth appear. In addition, mechanical gears also need lubricating oil, which not only increases their maintenance and operating costs, but also causes serious pollution to the operating environment due to running, popping, dripping, and leaking. [0003] The permanent magnet gear is a device that relies on magnetic fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K49/10
CPCH02K49/102H02K49/108
Inventor 葛研军刘放王大明刘东宁杨均悦
Owner DALIAN JIAOTONG UNIVERSITY
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