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Main shaft grounding device

A technology of grounding device and spindle, which is applied in the direction of connection, conductive connection, vehicle connector, etc., can solve the problems of low grounding reliability, and achieve the effects of high conductivity reliability, improved conductivity reliability, and long service life

Active Publication Date: 2016-10-26
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of low grounding reliability existing in the prior art and provide a spindle grounding device with high grounding reliability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] see Figure 1 to Figure 5 , a main shaft grounding device, comprising a main shaft and a housing 1, the housing 1 is sheathed outside the main shaft, the housing 1 is provided with a main shaft grounding device 3; the main shaft grounding device 3 includes a fixed plate 31 and a movable plate 32, the fixed plate 31 is fixedly connected with the housing 1, the bottom surface of the fixed plate 31 is connected with the top surface of the movable plate 32 through three expansion springs 33 arranged in parallel, and the bottom surface of the movable plate 32 is provided with three A carbon brush holder 5, a carbon brush 51 is fixed inside the carbon brush holder 5, the bottom of the carbon brush 51 is in contact with the outer surface of the main shaft, and the top of the carbon brush 51 is connected with the grounding wire 6; The top of the housing 1 is provided with the installation position 2 of the grounding device, the top of the installation position 2 is fixedly conn...

Embodiment 2

[0046] Described embodiment 2 is substantially the same as embodiment 1, and its difference is:

[0047] The bottom surface of the fixed plate 31 is connected with the top surface of the movable plate 32 by four expansion springs 33 arranged in parallel. Four carbon brush holders 5 are arranged on the bottom surface of the bottom surface, and the installation positions of the four carbon brush holders 5 are located on the four endpoints of the rectangle; the carbon brushes 51 are arranged perpendicular to the horizontal direction.

Embodiment 3

[0049] Described embodiment 3 is substantially the same as embodiment 2, and its difference is:

[0050] see figure 2 , the top of the fixed plate 31 is provided with a wear gauge 4, the middle part of the fixed plate 31 is provided with a through hole 41, the measuring rod 42 of the wear measuring gauge 4 is slidingly fitted with the through hole 41, and the measuring rod 42 set vertically to the horizontal direction; a rope guide 22 is provided on the side wall of the installation position 2, and a ground wire through hole 23 is opened on the side wall, and the ground wire 6 is connected to the carbon brush 51 after passing through the ground wire through hole 23, The ground wire through hole 23 is sealed and matched with the ground wire 6; the middle part of the movable plate 32 is provided with a plurality of conductive terminals 61, and the top of the conductive terminal 61 is connected with the ground wire 6. The bottom of 61 is connected with the conductive copper wir...

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Abstract

The invention provides a main shaft grounding device which comprises a main shaft and a shell which sleeves the main shaft. The shell is provided with a main shaft grounding device which comprises a fixed plate and a movable plate. The fixed plate is fixedly connected with the shell. The bottom surface of the fixed plate is connected to the top surface of the movable plate through three paralelly arranged expansion springs. The bottom surface of the movable plate is provided with at least two carbon brush holders. Carbon brushes are fixed in the carbon brush holders, the bottoms of the carbon brushes are in contact with the outer surface of the main shaft, and the top of the carbon brushes are connected to a grounding wire. The main shaft grounding device has the advantages of a simple structure, a stable connection, convenient maintenance, and the long service lives of carbon brushes.

Description

technical field [0001] The invention relates to the field of marine propeller shafting, in particular to a grounding device for a main shaft, which is particularly suitable for improving the grounding reliability of a propeller shaft. Background technique [0002] With the advancement of shipbuilding technology, people pay more and more attention to more details in the process of ship operation, especially the protection of important parts, and the protection of shafting has also attracted the attention of designers. Ship propeller bearings are subject to great cyclic stress and torque, and the generation of arcs will cause many wear and fatigue pits on the parts of the shaft system. Over time, the impact load and torque will inevitably decrease, which will cause frequent repairs, such as Increasing the frequency of replacing bearings and bushings, and more seriously, the aggravation of shafting fatigue will shorten the scrapping period of the entire shafting system, affect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/48H01R4/64H01R39/26H01R39/38H01R39/58
CPCH01R4/4863H01R4/64H01R39/26H01R39/385H01R39/58H01R2201/10H01R2201/26
Inventor 张明佘邵平严国辉陈英曾庆飞李亚潘文鼎贾广营
Owner WUHAN MARINE MACHINERY PLANT
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