CN2669465Y

CN2669465Y - Brushless excitation generator with detecting device

Info

Publication number: CN2669465Y
Application number: CNU2003201292697U
Authority: CN
Inventors: 张广兴; 姬惠刚; 景强; 牛志钧
Original assignee: Yongji Electric Motor Factory
Current assignee: CRRC Yongji Electric Co Ltd
Priority date: 2003-12-31
Filing date: 2003-12-31
Publication date: 2005-01-05
Anticipated expiration: 2013-12-31

Abstract

The utility model discloses a generator, in particular to a brushless excitation generator with a detecting device which comprises a main generator composed of a stator and a rotor, a rotating armature type exciter which is coaxial with the main generator and a rotating rectifier device fixed to the rotor shaft of the main generator. One end of the generator is provided with a brush carrier assembly fixed to a generator end cap and a slip-ring assembly fixed to the rotor shaft. The middle link performance parameter of the brushless excitation generator and the output voltage waveform of the rectifier device can be detected through the added brush carrier assembly and the slip-ring assembly. Usually an electric brush and a slip ring contact in radial direction when the inner space of the generator is small. The utility model adopts the axial direction compaction structure of the electric brush and the slip-ring and uses the limited space in the generator skillfully and rationally. The height and pressure of the electric brush can be adjusted by adjusting the height of the dividing groove on the electric brush.

Description

The brushless excitation generator that has checkout gear

Technical field

The utility model relates to generator, is specially the brushless excitation generator that has checkout gear.

Background technology

Brushless excitation generator is by main generator, form with coaxial revolving-armature type exciter and the rotary rectification device of main generator.Exciter rotor sends three-phase alternating current and give the main generator rotor excitation after rectification, the coaxial installation of exciter rotor, rotary rectification device and main generator rotor, and therefore, their intermediate link each other is difficult to detect.If need know exciter rotor size of current, main generator rotor winding temperature rise etc., need respectively main generator and exciter to be detected test separately by some frocks.The waveform of supplying with main generator as for rotary rectification device how, general frock can't detect.

Summary of the invention

The utility model solves the problem be difficult to existing brushless excitation generator internal operation situation is detected or needs detect separately by special tooling the detection inconvenience that causes, the brushless excitation generator that provides a kind of and have checkout gear, can easily carry out the internal operation condition detection even can detect motor internal special parameter in the running.

The utility model is to adopt following technical scheme to realize: the brushless excitation generator that has checkout gear, comprise by stator, the main generator that rotor constitutes, the revolving-armature type exciter and the rotary rectification device that be fixed in main machine rotor axle on coaxial with main generator, be provided with the fixing brush holder assembling of electric motor end cap and be fixed in slip ring assembling on the armature spindle at an end of generator, the brush holder assembling comprises two arcs, each arc uses the brush holder support that insulate with arc to be fixed on the electric motor end cap, on arc, brush box is arranged with " L " shape strut fixation, brush is arranged in the brush box, be fixed with lead-out wire on the arc; The slip ring assembling comprises the slip ring seat that is fixed on the armature spindle, is fixed with slip ring on slip ring seat both ends of the surface, is fixedly connected with screw rod on each slip ring, and brush axially contacts with slip ring; Two input wiring terminals of two output line terminal of rotary rectification device and main generator rotor excitation winding are caused motor shaft end along armature spindle and the fairlead that passes on the slip ring seat.If two lead-out wires of main generator rotor excitation winding are connected with screw rod on two slip rings respectively, on two lead-out wires of brush holder assembling, add field power supply, contact the rotor-exciting that can be main generator with slip ring by brush, at this moment, can survey no-load characteristic, short circuit characteristic and the rotor winding temperature rise of main generator; If four lead-out wires are connected by screw rod, promptly be connected with the input of rotor winding by the output of screw rod with rectifying device, connection line when brushless excitation generator is operation at this moment, can detect the rectifying device output voltage waveforms under motor running condition.

The utility model can detect brushless excitation generator intermediate link performance parameter by increase brush holder and slip ring assembling on existing brushless excitation generator, simultaneously, also can detect the output voltage waveforms of rectifying device.Usually brush and slip ring are for radially contacting, under the situation of motor internal space anxiety, the utility model adopts brush, slip ring axial compression structure, and is ingenious, reasonably utilized the confined space of motor internal, can regulate brush height and pressure by adjusting groove groove height and position on the brush.

Description of drawings

Fig. 1 is the utility model general structure schematic diagram;

Fig. 2 is the brush holder assembling right view of Fig. 1;

Fig. 3 is the slip ring assembling left view of Fig. 1;

Embodiment

The brushless excitation generator that has checkout gear, comprise by stator, the main generator that rotor constitutes, the revolving-armature type exciter and the rotary rectification device that be fixed in main machine rotor axle on coaxial with main generator, be provided with the fixing brush holder assembling of electric motor end cap and be fixed in slip ring assembling on the armature spindle at an end of generator, the brush holder assembling comprises two arcs 4,8, the brush holder support 6 of each arc with the arc insulation, 9 are fixed on the electric motor end cap 2, on arc, be fixed with brush box 17 with " L " shape pole 16, brush 10 is arranged in the brush box, be fixed with lead-out wire 18 on the arc; The slip ring assembling comprises the slip ring seat 15 that is fixed on the armature spindle, is fixed with

slip ring

11,12 on slip ring seat both ends of the surface, is fixedly connected with

screw rod

13,19 on each slip ring, and brush 10 axially contacts with slip ring; Two input wiring terminals of two output line terminal of rotary rectification device and main generator rotor excitation winding are caused motor shaft end along armature spindle and the fairlead that passes on the slip ring seat.

For guaranteeing the insulation between brush holder support and arc, on brush holder support, be with insulated tube 3,5 and insulated ring 7.By selecting and adjust the length of brush holder support, make the distance of the relative electric motor end cap of arc different, thereby make the axial location difference of two brushes, make brush and slip ring retainer shaft to contacting.

Under the situation that does not increase motor internal space (promptly not changing existing brushless excitation generator structure), for make brush can with each self-corresponding slip ring with suitable position and axially to contact, slip ring 11 radiuses on slip ring seat 15 front end faces are little than 12 radiuses of the slip ring on the rear end face.The screw rod insulation that is connected and fixed with slip ring 12 is passed slip ring 11 and is fastened on the slip ring 12, like this, but can make the terminals of screw rod all be positioned at a side of same slip ring, is convenient to the connection of lead-out wire 14.

Uniform fixedly double wedge is arranged on the slip ring seat 15, have the hole on big slip ring and the little slip ring and be separately fixed at by the hole on it on fixedly double wedge of slip ring seat, thereby realize fixing of slip ring and slip ring seat.

Claims

1, a kind of brushless excitation generator that has checkout gear, comprise by stator, the main generator that rotor constitutes, the revolving-armature type exciter and the rotary rectification device that be fixed in main machine rotor axle on coaxial with main generator, it is characterized by: be provided with the fixing brush holder assembling of electric motor end cap and be fixed in slip ring assembling on the armature spindle at an end of generator, the brush holder assembling comprises two arcs (4), (8), the brush holder support (6) of each arc with the arc insulation, (9) be fixed on the electric motor end cap (2), on arc, be fixed with brush box (17) with " L " shape pole (16), brush (10) is arranged in the brush box, be fixed with lead-out wire (18) on the arc; The slip ring assembling comprises the slip ring seat (15) that is fixed on the armature spindle, is fixed with slip ring (11), (12) on slip ring seat both ends of the surface, is fixedly connected with screw rod (13), (19) on each slip ring, and brush (10) axially contacts with slip ring; Two input wiring terminals of two output line terminal of rotary rectification device and main generator rotor excitation winding are caused motor shaft end along armature spindle and the fairlead that passes on the slip ring seat.

2, the brushless excitation generator that has checkout gear as claimed in claim 1 is characterized by: slip ring (11) radius on slip ring seat (15) front end face is little than the slip ring on the rear end face (12) radius.

3, the brushless excitation generator that has checkout gear as claimed in claim 2 is characterized by: the screw rod insulation that is connected and fixed with slip ring (12) is passed slip ring (11) and is fastened on the slip ring (12).