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Composite induction disc high-speed eddy current brake

An eddy current brake and induction disc technology, applied in asynchronous induction clutches/brakes, permanent magnet clutches/brakes, electric brakes/clutches, etc. The effect of wide dynamic speed range, safe and reliable cost

Active Publication Date: 2020-11-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Aiming at the problem that the conductor plate of the existing permanent magnet eddy current brake is made of a single material, which cannot maximize the braking torque in a wide range of speed changes, it provides a A compound induction disc high-speed eddy current brake

Method used

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  • Composite induction disc high-speed eddy current brake
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  • Composite induction disc high-speed eddy current brake

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specific Embodiment approach 1

[0047] Specific implementation mode 1. Combination Figure 1 to Figure 11As shown, the first aspect of the present invention provides a composite induction disc high-speed eddy current brake, comprising an induction disc 100 and two excitation discs 200, the two excitation discs 200 are located on both axial sides of the induction disc 100, and respectively An air gap is formed between the induction disks 100; the two excitation disks 200 are mechanically connected together;

[0048] Both the induction disk 100 and the excitation disk 200 are circular;

[0049] The induction disk 100 includes a high-permeability conductor plate 110 and two high-conductivity conductor plates 120, and the two high-conductivity conductor plates 120 are respectively pasted and fixed on both axial sides of the high-permeability conductor plate 110;

[0050] The axial thickness at the outer diameter of the high-conductivity conductor plate 120 is less than or equal to the axial thickness at the inn...

specific Embodiment 1

[0057] Specific embodiment one: combine Figure 1 to Figure 7 As shown, the composite induction disc high-speed eddy current brake is mainly composed of two excitation discs, an induction disc and two air gaps, and the two excitation discs are located on both axial sides of the induction disc, and between the two excitation discs and the induction disc For two air gaps, the two exciters are mechanically connected together. The induction plate is composed of two conductor plates made of disc-shaped high-conductivity materials and one conductor plate made of disc-shaped high-magnetic-permeability materials. The two conductor plates made of high-conductivity materials are pasted and fixed on the disc-shaped high magnetic The axial thickness at the outer diameter of the conductor plate made of high-conductivity material is equal to the axial thickness at the inner diameter of the conductor plate made of high-conductivity material, and the axial thickness of the outer diameter of t...

specific Embodiment 2

[0058] Specific embodiment two: combine Figure 8 to Figure 11 As shown, the main difference between this embodiment and specific embodiment 1 is that the axial thickness at the outer diameter of the conductor plate made of high electrical conductivity material is smaller than the axial thickness at the inner diameter, and the outer diameter of the conductor plate made of high magnetic permeability material The axial thickness at the diameter is greater than the axial thickness at the inner diameter. In this embodiment, the thickness of the conductor plate made of high electrical conductivity material and the conductor plate made of high magnetic permeability material changes gradually along the radial direction.

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Abstract

A composite induction disc high-speed eddy current brake belongs to the technical field of motors. Aiming at the problem that a conductor plate of an existing permanent magnet eddy current brake is made of a single material, and braking torque maximization cannot be achieved within a wide speed change range. Two excitation discs are located on the two axial sides of the induction disc, and air gaps are formed between the two excitation discs and the induction disc. The induction disc comprises a high-permeability conductor plate and two high-conductivity conductor plates; the two high-conductivity conductor plates are respectively adhered and fixed on two axial sides of the high-permeability conductor plate; the axial thickness of the outer diameter of the high-conductivity conductor plateis smaller than or equal to the axial thickness of the inner diameter of the high-conductivity conductor plate, and the axial thickness of the outer diameter of the high-conductivity conductor plateis larger than or equal to the axial thickness of the inner diameter of the high-conductivity conductor plate; and the excitation disc comprises a yoke plate and a plurality of permanent magnets, andthe permanent magnets are sequentially and alternately arranged and fixed on the air gap side of the yoke plate in the circumferential direction in an N-S mode. A composite conductor plate structure or an alloy material is adopted, and maximization of braking torque at the inner diameter and the outer diameter is achieved at the same time.

Description

technical field [0001] The invention relates to a composite induction disk high-speed eddy current brake, which belongs to the technical field of motors. Background technique [0002] The brake has the function of decelerating, stopping or keeping the moving parts (or moving machinery) in a stopped state, and is a mechanical device that stops or slows down the moving parts in the machine. [0003] Due to the development of modern industrial machinery, brakes have a variety of new structural types, which are mainly divided into two categories: friction brakes and non-friction brakes. The eddy current brake is a non-friction brake, especially the permanent magnet eddy current brake is a new type of brake gradually developed with the improvement of the performance of the permanent magnet. The eddy current is generated, and the eddy current magnetic field interacts with the permanent magnet magnetic field to generate braking torque. Compared with traditional mechanical brakes,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K49/04H02K49/10
CPCH02K49/046H02K49/108Y02T10/64
Inventor 寇宝泉王梦瑶金银锡陈雯
Owner HARBIN INST OF TECH
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