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A split-type high-speed generator with position feedback

A split-type, generator technology, applied in electromechanical devices, machines/engines, jet propulsion devices, etc., can solve the problems of being unsuitable for light weight and volume, high price of air bearings, large volume, etc., to reduce volume and weight. , The effect of improving the smoothness of starting and improving the transmission efficiency

Active Publication Date: 2021-02-26
GUIZHOU AEROSPACE LINQUAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-speed bearings need lubricating oil for lubrication and cooling. Although air bearings do not need a lubrication system and have the characteristics of high speed, air bearings are expensive and bulky, and are not suitable for light weight and small volume requirements.

Method used

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  • A split-type high-speed generator with position feedback
  • A split-type high-speed generator with position feedback
  • A split-type high-speed generator with position feedback

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Embodiment Construction

[0022] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0023] Such as Figure 1 to Figure 4 A split type high-speed generator with position feedback shown is composed of a stator 11 and a rotor 13 . The rotor 13 is a cantilever structure, the rotating shaft 41 is embedded inside the micro-gas turbine, and there is no bearing inside the motor. The bearing 3 on the generator shaft is inside the micro-gas turbine 5, and is lubricated and cooled by the lubricating oil system inside the micro-gas turbine. This design solves the cooling problem of the internal bearing of the motor at a high speed of 42000rpm; the generator is directly connected to the micro-gas turbine, and the reducer is eliminated.

[0024] The gap between the generator stator 11 and the micro-combustion engine 5 is positioned. On the generator shaft, the second bearing 8, the second sleeve 6, the first bearing 3, and the...

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Abstract

The invention provides a split type high-speed starter-generator with position feedback which comprises a stator and a rotor. The stator and the rotor form a brushless motor; the stator is fixed at acasing spigot end of a micro-gas turbine; the front end of a rotating shaft of the rotor penetrates into the micro-gas turbine and is fixed by a bearing; the end part of the micro-gas turbine is fixedby a baffle around the rotating shaft; the rotating shaft and the baffle are matched to form a dynamic sealing structure; and the rotating shaft is butted with a transmission shaft of the micro-gas turbine to realize torque transmission. According to the invention, the volume and the weight of a starter-generator system are effectively reduced; the volume of the starter-generator of 1.6 kW in thetraditional scheme is reduced from phi 120 * 200 to phi 85 * 93, and the weight is reduced from 9.8 kg to 1.9 kg; speed reducers are omitted, and thus friction loss and operation noise between the speed reducers are eliminated; and the transmission efficiency is improved.

Description

technical field [0001] The invention relates to a split-type high-speed generator with position feedback, which belongs to the technical field of electrical engineering. Background technique [0002] During the working process of the micro-gas turbine, the starting function of the generator is used to drive the rotor of the micro-gas turbine to rotate in the starting stage. to generator mode. [0003] The speed of the micro-gas turbine is as high as 45,000 revolutions per minute during normal operation. Usually, it is necessary to use a gear reducer to reduce the speed and then connect it to the generator. , during the starting process, the generator rotor needs to swing back and forth to find the position. According to the different rotor positions, it takes 7s to 9s from power-on to ignition of the micro-gas turbine, and the starting speed is relatively slow; the reducer and low-speed generator make the micro-turbine The gas turbine is relatively bulky. For example, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K29/08H02K5/124H02K5/16H02K5/22H02K11/215H02K1/28F02C7/268
CPCF02C7/268H02K1/28H02K5/124H02K5/161H02K5/225H02K29/08H02K11/215
Inventor 兰小兵陈强施道龙张登平卓亮赵飞葛发华
Owner GUIZHOU AEROSPACE LINQUAN MOTOR CO LTD
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