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Device and method capable of replacing electric brush in live-line mode

A technology of electrified replacement and brushes, applied in electromechanical devices, manufacturing of motor generators, electrical components, etc., can solve the problems of difficulty in electrified replacement of brushes, no replacement of brushes, etc., and achieve the effect of convenient operation of electrified replacement.

Pending Publication Date: 2022-08-09
浙江富春江水电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present there is no special device to drive the replacement of brushes, which brings difficulty to replace the brushes with electricity

Method used

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  • Device and method capable of replacing electric brush in live-line mode
  • Device and method capable of replacing electric brush in live-line mode
  • Device and method capable of replacing electric brush in live-line mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: A device that can replace the brushes with electricity (see the appendix figure 1 , attached figure 2 , attached image 3 ), including the insulating handle 1, the ejector rod 2, the base 3, the brush holder 4 installed on the base, the brush 5 and the constant pressure spring 6 are installed on the brush holder, and the constant pressure spring abuts on the brush to make electricity The brush end face is always in contact with the slip ring 31 , the electric brush is provided with an inclined supporting surface 7 , the constant pressure spring is provided with an elastic ring, and the elastic ring is supported on the supporting surface. A brush holder 8 is installed on the brush holder, and both the brush and the constant pressure spring are installed on the brush holder. The base is tightly connected with the brush holder conductive ring 9 on the motor.

[0039] The insulating handle is installed on the base, the insulating handle is provided with a ...

Embodiment 2

[0053] Embodiment 2: A device that can replace electric brushes with electricity (see appendix Figure 4 ), its structure is similar to that of Embodiment 1, and the main difference is that in this embodiment, a displacement sensor 28 is installed on the brush holder, and the displacement sensor is arranged toward the brush to detect the distance from the brush. The end of the top rod is provided with locking teeth 29, and the surface of the brush is provided with serrations 30 corresponding to the top rod. When the top rod is in contact with the brush, the locking teeth cooperate with the serrations to lock. Other structures are the same as those of Embodiment 1.

[0054] A method for electrified replacement of a brush, the steps of which are similar to those of the first embodiment, the main difference is that in this embodiment, a displacement sensor is installed on the brush holder, and the distance between the brush and the sensor is monitored in real time, and the more s...

Embodiment 3

[0055] Embodiment 3: A device that can replace electric brushes with electricity (see appendix Figure 5 ), its structure is similar to that of Embodiment 2, and the main difference is that in this embodiment, a cylinder 32 is installed on the brush holder, a driving piston 33 is installed in the cylinder, the driving piston is connected to the telescopic rod 34, and the end of the telescopic rod is connected to a pre-tightening spring 35, A preloading block 36 is connected to the preloading spring, and the preloading block is arranged toward the end face of the brush; the insulating handle is provided with an inflatable cavity 37, and an inflatable piston 38 is installed in the inflatable cavity, and the inflatable piston is connected to a push-pull rod 39, and the push-pull rod extends out of the insulating handle. A charging pipe 40 is connected between the cylinder and the installation cavity. A return spring 41 is installed in the cylinder, and the return spring abuts on ...

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PUM

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Abstract

The invention discloses a device and method capable of replacing an electric brush in an electrified manner, and aims to overcome the defect that the electric brush is difficult to replace in an electrified manner. The device comprises an insulating handle, an ejector rod and a base, a movable electric brush carrier is installed on the base, an electric brush is installed on the electric brush carrier, the insulating handle is installed on the base, an ejector block and a positioning column are arranged on the insulating handle, one end of the ejector rod is supported on the ejector block, and the positioning column abuts against the base; the insulating handle rotates to enable the ejector block to push the ejector rod to move, the ejector rod abuts against the electric brush, and the positioning column is separated from the base; when the insulating handle is pulled outwards, the positioning column abuts against the electric brush carrier, and the electric brush carrier and the electric brush are pulled out together. And the electrified replacement operation of the electric brush is convenient.

Description

technical field [0001] The invention relates to the technical field of electric motors, and more particularly, to a device and method for replacing electric brushes with electricity. Background technique [0002] As a key component of rotor excitation of large synchronous generators, brushes undertake the work of transmitting DC excitation current from static components to rotating components. With the higher requirements of power grids on generator sets, more and more contract terms are proposed. The need to replace the brushes with electricity, and the replacement of the brushes with electricity solves the need for the generator to replace the brushes with electricity without shutting down due to problems with the brushes. However, there is currently no dedicated device for driving the replacement of the brushes, which brings difficulty to the replacement of the electric brushes with electricity. SUMMARY OF THE INVENTION [0003] The present invention overcomes the prob...

Claims

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Application Information

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IPC IPC(8): H02K15/14H02K5/14
CPCH02K15/14H02K5/146Y02E10/72
Inventor 朱荣华刘晓慧黄亿良王提军何其东
Owner 浙江富春江水电设备有限公司