CN101651385A

CN101651385A - Novel generator slip ring device

Info

Publication number: CN101651385A
Application number: CN200910075530A
Authority: CN
Inventors: 张广兴; 李树茂; 阳咏梅
Original assignee: Yongji Xinshisu Electric Equipment Co Ltd
Current assignee: CRRC Yongji Electric Co Ltd
Priority date: 2009-09-22
Filing date: 2009-09-22
Publication date: 2010-02-17

Abstract

The invention relates to an AC brush synchronous generator, in particular to a novel generator slip ring device, solving the problems of greater axial and radial dimensions and potential hazard of grounding fault during the use of existing generator slip ring devices. The generator slip ring device comprises a slip ring sleeve on which an insulating layer is arranged, as well as an inner slip ringand an outer slip ring which are sleeved and fixed on the slip ring sleeve. The slip ring sleeve is also sheathed with an inner insulating ring, a middle insulating ring and an outer insulating ring.A fixing bolt sheathed by an insulating sleeve is used for sequentially and axially fixing the inner insulating ring, the inner slip ring, the middle insulating ring, the outer slip ring and the outer insulating ring on the slip ring sleeve. Meanwhile, the generator slip ring device is also provided with a first conducting stud which axially passes through the outer insulating ring to be connected with the outer slip ring, and a second conducting stud which is sheathed by an insulating sleeve and axially and sequentially passes through the outer insulating ring, the outer slip ring and the middle insulating ring to be connected with the inner slip ring. An excitation lead wire is led out of the first conducting stud and the second conducting stud.

Description

Novel generator slip ring device

Technical field

The present invention relates to exchange has the brush synchronous generator, and the slip-ring device of brush synchronous generator is particularly arranged, and is specially a kind of novel generator slip ring device.

Background technology

At present, big-and-middle-sized interchange has brush synchronous generator slip-ring device generally to adopt the slip ring holder structure, and slip ring seat hot jacket is on axle, slip ring axially fastens on the slip ring seat, this structure, axially and radial dimension relatively large, if be used for size relatively the motor of anxiety just be difficult to be suitable for; The micro-machine slip-ring device generally adopts tube-in-tube structure, and excitation lead is drawn after being welded on the slip ring respectively, and this structure radial dimension is less but axial dimension is still bigger, is widely used in micro-machine, and has the hidden danger that earth fault takes place.

Summary of the invention

The present invention for the slip ring holder structure that solves existing generator slip ring device big-and-middle-sized interchange have exist axially in the brush synchronous generator and radial dimension bigger, be difficult to be applicable to the size problem of the generator of anxiety relatively; And the tube-in-tube structure axial dimension of slip-ring device is still big and have the problem of earth fault hidden danger in small generator.The invention provides a kind of novel generator slip ring device in order to address the above problem.

The present invention adopts following technical scheme to realize: comprise the slip ring sleeve which is provided with insulating barrier and overlap the inboard slip ring that is fixed on the slip ring sleeve, outside slip ring, also be with interior dead ring on the slip ring sleeve, middle dead ring, the external insulation ring, with the set bolt that is with insulating sleeve successively with interior dead ring, inboard slip ring, middle dead ring, outside slip ring and external insulation annulate shaft are to being fixed on the slip ring sleeve, simultaneously, also be provided with axially to pass on first conductive stud that the external insulation ring is connected with outside slip ring and its and be with insulating sleeve and axially pass the external insulation ring successively, outside slip ring, second conductive stud that middle dead ring is connected with inboard slip ring, excitation lead is respectively from first conductive stud, draw on second conductive stud.

Dead ring, inboard slip ring, middle dead ring, outside slip ring and the soaking of external insulation ring are placed on the insulating sleeve in described, have reduced the axial and radial dimension of slip-ring device effectively, are convenient to installation and removal; The setting of dead ring simultaneously can make between the slip ring axially accurately location, and has increased creepage distance and increased reliability.

Compared with prior art, novel generator slip ring device provided by the invention has the following advantages:

(1) compact conformation, integraty is good.

(2) easy installation and removal.

(3) effectively reduce slip-ring device axially and radial dimension, can be fit to more eurypalynous generator.

(4) improve the reliability of slip-ring device, prevented earth fault.

Description of drawings

Fig. 1 is the structural representation of novel generator slip ring device of the present invention;

Fig. 2 is the first conductive stud cutaway view of novel generator slip ring device of the present invention;

Fig. 3 is the second conductive stud cutaway view of novel generator slip ring device of the present invention.

Among the figure: 1-excitation lead, 2-external insulation ring, 3-insulating sleeve, 4-outside slip ring, dead ring among the 5-, dead ring in the 6-insulating barrier, 7-, 8-slip ring sleeve, 9-back-up ring, 10-second conductive stud, 11-first conductive stud, 12-set bolt, the inboard slip ring of 13-.

Embodiment

Novel generator slip ring device, comprise the slip ring sleeve 8 which is provided with insulating barrier 6 and overlap the inboard slip ring 13 that is fixed on the slip ring sleeve 8, outside slip ring 4, dead ring 7 in also being with on the slip ring sleeve 8, middle dead ring 5, external insulation ring 2, with the set bolt 12 that is with insulating sleeve 3 successively with interior dead ring 7, inboard slip ring 13, middle dead ring 5, outside slip ring 4 and external insulation ring 2 are axially fixed on the slip ring sleeve 8, simultaneously, also be provided with axially to pass on first conductive stud 11 that external insulation ring 2 is connected with outside slip ring 4 and its and be with insulating sleeve 3 and axially pass external insulation ring 2 successively, outside slip ring 4, second conductive stud 10 that middle dead ring 5 is connected with inboard slip ring, excitation lead 1 is respectively from first conductive stud 11, draw on second conductive stud 10.

Have V-shaped groove on described slip ring sleeve 8 peripheries, be convenient to wrap insulate layer 6, described insulating barrier 6 is wrapped in slip ring sleeve 8 outer surfaces and thermoset forming by mica tape.When motor is in running order, can in time discharges the carbon dust that drops on the generator carbon brush device, and effectively prevent arc phenomenon that carbon dust causes and the short circuit phenomenon between the slip ring two-phase.Interior dead ring 7, inboard slip ring 13, middle dead ring 5, outside

slip ring

4 and 2 soaking of external insulation ring are placed on the insulating sleeve 3, such structure demoted effectively slip-ring device axially and radial dimension, be convenient to installation and removal; The setting of while

dead ring

2,5,7 can make outside slip ring 4 and inboard slip ring 13 axially accurately locate, and increased creepage distance has increased the reliability of installing.

During concrete the use, the set bolt 12 and first conductive stud 11, second conductive stud, the 10 outer insulating sleeves 3 that all are with, the length of insulating sleeve 3 according to supporting set bolt 12 or first conductive stud 11, second conductive stud 10 change, play the effect of effective insulation.Slip-ring device adopts slight interference to cooperate with the motor shaft extension, and carry out axial location by back-up ring 9, the winding (excitation winding) that exciting current is passed to rotor by medial and

lateral slip ring

13,4 and excitation lead 1 that contacts by carbon brush and slip-ring device gets on, make rotor produce the magnetic field intercepts stator winding and produce electric current, finally reach the purpose of generating.

Claims

1, novel generator slip ring device, comprise that the slip ring sleeve (8) which is provided with insulating barrier (6) and cover are fixed in the inboard slip ring (13) on the slip ring sleeve (8), outside slip ring (4), it is characterized in that: also be with interior dead ring (7) on the slip ring sleeve (8), middle dead ring (5), external insulation ring (2), with the set bolt that is with insulating sleeve (3) (12) successively with interior dead ring (7), inboard slip ring (13), middle dead ring (5), outside slip ring (4) and external insulation ring (2) are axially fixed on the slip ring sleeve (8), simultaneously, also be provided with axially to pass on first conductive stud (11) that external insulation ring (2) is connected with outside slip ring (4) and its and be with insulating sleeve (3) and axially pass external insulation ring (2) successively, outside slip ring (4), second conductive stud (10) that middle dead ring (5) is connected with inboard slip ring, excitation lead (1) is respectively from first conductive stud (11), second conductive stud is drawn on (10).

2, novel generator slip ring device as claimed in claim 1 is characterized in that: have V-shaped groove on described slip ring sleeve (8) periphery.

3, novel generator slip ring device as claimed in claim 1 or 2 is characterized in that: described insulating barrier (6) is wrapped in slip ring sleeve (8) periphery and thermoset forming for mica tape.