CN202633729U

CN202633729U - Novel conductive shaft of precision sliding ring

Info

Publication number: CN202633729U
Application number: CN2011204972979U
Authority: CN
Inventors: 王兴力
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-05
Filing date: 2011-12-05
Publication date: 2012-12-26
Anticipated expiration: 2021-12-05

Abstract

The utility model provides a novel conductive shaft of a precision sliding ring. A high-voltage large-current power conductive ring on the conductive shaft is made into a V-shaped groove with a single conductive brush wire and a low-voltage weak-current signal conductive ring on the conductive shaft is made into a flat groove with a plurality of conductive brush wires. The two conductive rings with different groove types together exist on a conductive shaft.

Description

A kind of novel precise slip ring conductive shaft

Technical field:

The utility model relates to a kind of novel precise slip ring conductive shaft, and the utility model is specially adapted in high-voltage great-current electric power and low pressure weak current signal are the accurate slip ring of one, use, like accurate slip ring used on 1500 kilowatts of wind turbine generator.

Background technology

Conductive shaft in the existing accurate slip ring adopts be high-voltage great-current electric power and low pressure weak current signal through the time all can only adapt to a kind of conduction brush silk; Be single conduction brush silk or many conduction brush silks; Conductive shaft in the accurate slip ring of the wind-driven generator of producing like German Stedman (Stemmann) company just can only be used single conduction brush silk; The advantage of this single conduction brush silk is that the diameter of single conduction brush silk is bigger than manying a diameter of conduction brush silk, so its useful life is than the length that manys piece; Weakness is when passing through as low pressure weak current signal; The contact that contacts with conducting ring because of single conduction brush silk is few; Its contact resistance is just big; When slip ring produces electric Jie's grinding (black color grinding shape also have electrical insulating property), low pressure weak current signal through the time signal logical phenomenon when disconnected will produce the time, thereby it is unstable that signal is transmitted.What also have a kind of conductive shaft employing is many conduction brush silks; Conductive shaft in the accurate slip ring of the wind-driven generator of producing like Shanghai Moog Inc. is exactly many conduction brush silks; The advantage of these many conduction brush silks is many because of its contact point when low pressure weak current signal passes through; So the handling capacity of its signal can be stronger, the phenomenon of leading to when breaking in the time of can not producing.The weakness of these many conduction brush silks is when high-voltage great-current electric power passes through; Because be that many conduction brush silks want thin with respect to single conduction brush silk; Do not have the length of single conduction brush silk its useful life, thereby the number of times of changing the conduction brush silk comes lecture to increase the maintenance cost that several times increase accurate slip ring with respect to single conduction brush silk.

Summary of the invention

Conductive shaft in the accurate slip ring of existing used for wind power generation adopts be high-voltage great-current electric power with low pressure weak current signal through the time all be to adapt to a kind of conductive shaft of brushing silk, the utility model has solved conductive shaft in the accurate slip ring and has only adapted to an a kind of deficiency that conductive shaft produced of brushing thread.

The utility model solves the technical scheme that its technical problem adopted: the high-voltage great-current electric power conducting ring on the conductive shaft is made the V-type groove adopt single conduction brush silk; Low pressure weak current signal conducting ring on the conductive shaft is made the flat pattern groove adopt many conduction brush silks, with the conducting ring of these two kinds of different grooveds and be stored in a novel conductive axle on the conductive shaft.

The conductive shaft that the utility model has solved in the accurate slip ring only adapts to a kind of deficiency that conductive shaft produced of brushing silk; Realized two kinds of conducting rings on the conductive shaft and be stored in a novel conductive axle on the conductive shaft, prolonged the accurate slip ring effect in useful life thereby reach.

The beneficial effect of the utility model is:

1, high-voltage great-current electric power conducting ring is adopted single major diameter conduction brush silk, when reducing conduction brush silk cost, can also prolong the useful life that conduction brush silk and conducting ring wear and tear each other.

2, adopt many conduction brush silks to contact to low pressure weak current signal conducting ring, thereby make the signal transmission more reliable more because of its contact point with conducting ring.

3, the part that contacts with conducting ring on the conductive shaft of conduction brush silk has certain pressure; This pressure is referred to as contact force; Because of the employing of low pressure weak current signal conducting ring is many conduction brush silks; So its contact force can be less than the pressure of single conduction brush silk; And high-voltage great-current electric power conducting ring is often for power provides power supply, because of being single conduction brush silk, so its pressure can be greater than many conduction brush silks; Be to be divided into high-voltage great-current electric power conducting ring and low pressure weak current signal conducting ring on the conductive shaft of the utility model; In accurate slip ring, also be divided into the single conduction brush silk of high-voltage great-current electric power and many conduction brush silks of low pressure weak current signal with the corresponding conduction brush silk of conductive shaft, because the difference of the contact force of the conduction brush silk of these two kinds of different qualities, so for the conventional conductive axle that can only adapt to a kind of conduction brush silk; The total time of the mutual wearing and tearing of conducting ring on the conductive shaft of the utility model and conduction brush silk can be more permanent, thereby reach the accurate slip ring of the prolongation effect in useful life.

Description of drawings:

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Fig. 1 is the front view of accurate slip ring conductive shaft

Fig. 2 is many conduction brush silks.

Fig. 3 is single conduction brush silk.

In the accompanying drawing: the 1st, the high-voltage great-current electric power conducting ring on the conductive shaft.The 2nd, the low pressure weak current signal conducting ring on the conductive shaft.The 3rd, many conduction brush silks.The 4th, single conduction brush silk contact.The 5th, single conduction brush wire bonds.The 6th, single conduction brush silk brush holder support.The 7th, single conduction brush silk.The 8th, the dead ring on the conductive shaft.The 9th, lock shaft socket end on the conductive shaft.The 10th, the inlet wire bearing terminal on the conductive shaft.

Embodiment:

Single conduction brush silk 7 is pressed on the high-voltage great-current electric power conducting ring 1 on the conductive shaft, many conduction brush silks 3 are pressed on the low pressure weak current signal conducting ring 2 on the conductive shaft.

Claims

1. novel precise slip ring conductive shaft; It is characterized in that the high-voltage great-current electric power conducting ring on the conductive shaft is made the V-type groove adopts single conduction brush silk; Low pressure weak current signal conducting ring on the conductive shaft is made the flat pattern groove adopt many conduction brush silks, with the conducting ring of these two kinds of different grooveds and be stored in a novel conductive axle on the conductive shaft.