A method and device for realizing large current and high speed conduction

A high-speed, high-current technology applied to the conduction of conductive grinding wheels in electrolytic grinding. It can solve the problems of not being able to meet the rated current and high rated speed at the same time, and achieve the effect of improving mechanical grinding efficiency, sufficient supply, and expanding engineering applications.

Inactive Publication Date: 2016-04-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the current high-current and high-speed rotating equipment cannot meet the requirements of high rated current and high rated speed at the same time under the premise of ensuring the service life of the conductive ring

Method used

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  • A method and device for realizing large current and high speed conduction
  • A method and device for realizing large current and high speed conduction
  • A method and device for realizing large current and high speed conduction

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Embodiment Construction

[0016] Such as Figure 1-3 As shown, a method for realizing high-current and high-speed conduction is to connect N identical conductive rings 7 in series, and connect adjacent conductive rings 7 through couplings 4; use a pulley transmission to distribute each coupling 4 The rotating speed of the conductive ring rotor is connected with the high-speed coupling 4, and the stator is connected with the low-speed coupling 4. The relative speeds of the N conductive ring 7 stators and the rotor are the same; The direction of rotation of the grinding wheel 12 is reversed.

[0017] When the conductive grinding wheel 12 rotates at a high speed, it needs to pass a relatively large current, its maximum operating speed can reach 3000-6000r / min, and its operating current is between 100-250A. The rated current and the rated speed of the conductive ring 7 are generally negatively correlated. The conductive ring with a large rated current has a low speed, and the conductive ring with a high r...

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Abstract

The invention discloses a method and a device for realizing large current high rotation speed electric conduction. A plurality of same conducting rings are connected in series through couplers, so that conducting ring rotors are connected with a high-speed coupler, stators are connected with a low-speed coupler, meanwhile, rotating speed of each coupler is distributed by utilizing a belt wheel transmission device, relative rotating speeds of each conducting ring rotor and each stator are equal, and the continuous power supply provided by the low-speed conducting rings for large current and high rotation speed rotating equipment with the rotation speed being multiple times of rated relative rotation speed of the rotors and the stators is realized. The device is used for electrolytic grinding, the rotation speed of an electric conduction grinding wheel can be improved, sufficient supplying and quick alternating of electrolyte in an electrolysis interval can be realized, mechanical grinding function is improved, high rotation speed and high accuracy of an electric main shaft in electrolytic grinding are ensured, and the production efficiency and the processing quality of electrolytic grinding are greatly improved.

Description

technical field [0001] The invention relates to a method and device for realizing high-current and high-speed conduction, and is especially suitable for conduction of conductive grinding wheels in electrolytic grinding. Background technique [0002] Electrolytic grinding is a compound processing method combining electrolytic and mechanical grinding. It has higher precision and surface quality than electrolytic machining, higher efficiency and stability than mechanical grinding, and the wear of the grinding wheel is small. It is suitable for grinding various conductive metal materials that are difficult to grind, such as high strength, high hardness, heat sensitivity, and brittleness. During processing, the conductive grinding wheel (tool cathode) is connected to the negative pole of the DC power supply, and the workpiece (workpiece anode) is connected to the positive pole of the DC power supply. The current flows from the workpiece to the conductive grinding wheel through th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00
Inventor 赵建社刘玉杰杨育平刘勇李龙
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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