CN204258558U - A kind of generator excitation brush box - Google Patents
A kind of generator excitation brush box Download PDFInfo
- Publication number
- CN204258558U CN204258558U CN201420721674.6U CN201420721674U CN204258558U CN 204258558 U CN204258558 U CN 204258558U CN 201420721674 U CN201420721674 U CN 201420721674U CN 204258558 U CN204258558 U CN 204258558U
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- Prior art keywords
- brush
- brush box
- box
- spring
- handle
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Abstract
The utility model discloses a kind of generator excitation brush box belonging to generator excited system technical field.Its structure is: handle is connected with direction board, handle is connected with wedge by rotating shaft, wedge is provided with brush box, the bottom of brush box is provided with charge switch, butterfly spring is equipped with at the front handle place of brush box, the lead-in wire of brush is connected with wedge by nut, and brush tape insulation block side pressure is connected on the bottom of constant force spring.Excitation brush box of the present utility model alternative keep-spring formula combination brush box, brush box is installed and take off brush box free and relaxed, constant force spring can be changed in time, take off automatic locking brush in brush box process, generator brush box Problems existing can be solved well, targetedly, also add mark in addition, former brush can be adopted, the novelty of the structure of brush box is improved, solve on-the-spot existing problems well, ensure that generator excited system stable operation.
Description
Technical field
The utility model belongs to generator excited system technical field, is specifically related to a kind of generator excitation brush box easy to use.
Background technology
Current China large turbo-type generator many employings self shun static excitation system, after static converter rectification, again by being arranged on the brush in brush box, the excitation mode of generator amature excitation winding is input to through collector ring, brush box is as the link of collector ring (moving) with external dc field power supply (quiet), is also that excitation system is the weakest, the link of most critical.
Traditional generator brush box is keep-spring formula combination brush box, the abnormal conditions occurred in practice, difficulty during assembling, handle dropout, connecting rod slippage, brush are by the phenomenon such as latch plate is stuck, on-the-spot existing problems are as follows: brush box designs structurally constant voltage spring and belongs to riveting method, cannot change in operation, along with unit puts into operation the growth of time, there is the problem of tired pressure drop in constant voltage spring, cause brush current to distribute serious uneven, cause brush to be struck sparks; Brush box first half two M8 soket head cap screws lock, and two bolts fixing brush box in running easily loosen, can make brush box end face and collector ring not parallel, spring pressure is uneven, brush current is uneven, and time serious, brush box front end may brush up against collector ring, causes the accident; Brush box forward part latch plate intensity is low yielding, blocks brush, not only damages brush, and makes brush and collector ring can not good contact, occurs spark phenomenon; The butterfly spring sheet design of brush box need be too high by bounce, and not easy to operate in operation, baffle design intensity is low in addition, easily makes baffle plate be out of shape, and causes brush box virtual connection in brush holder, i.e. brush box vibration, and brush is struck sparks, and damages collector ring, may cause ring fire; The brush brush pigtail outlet that matches of this kind of brush box is unreasonable in addition, causes brush to be stuck in brush box, can not good contact with collector ring, occurs spark phenomenon, may cause ring fire accident as do not processed in time.
The present situation that current scene exists causes the Maintenance and Repair work Problems existing of power plant staff to be: brush current distributes uneven, and DeGrain after adjustment, brush certainly will be caused overheated, easily there is disconnected pigtail phenomenon in electric current brush bigger than normal, threatens engine health.Brush changing is frequent, and consumption is large.Daily spot check and regular working strengthen the inspection to brush box, accomplish to change the brush box gone wrong in time, add workload and spare part expense.Due to the long term accumulation effect that brush holder and the design defect of brush box own are in operation, make the quality of collector ring of generator undesirable (ovality and circular runout exceed standard), increase collector ring rough surface, sparking during brush runs.Also will will clean part brush box in maintainer's regular working, the brush large to gap is changed, and each shutdown all thoroughly will clear up slip ring and brush carrier device, measures the abrasion condition of slip ring, adds additional inspection and maintenance expense.
Utility model content
The utility model, for the defect of prior art, proposes a kind of generator excitation brush box.New brush box is without the need to changing original equipment, and direct available finger controlled combination brush box substitutes keep-spring formula combination brush box, and install brush box and take off brush box free and relaxed, convenient and quick-replaceable constant force spring, takes off automatic locking brush in brush box process.
A kind of generator excitation brush box, handle 1 is connected with direction board 2, handle 1 is connected with wedge 3 by rotating shaft, wedge 3 is provided with brush box 4, the bottom of brush box 4 is provided with accuses switch 5, butterfly spring 15 is equipped with at the front handle place of brush box 4, and the lead-in wire of brush 7 is connected with wedge 3 by nut 8, and brush 7 tape insulation block side pressure is connected on the bottom of constant force spring 6.
Described brush box 4 is also provided with the perforate 9 of fixing constant force spring 6.
Described handle 1 is insulation handle.
The controlling organization of above-mentioned generator excitation brush box, spring 10 is connected with one end of pressing plate 11, the other end of pressing plate 11 is provided with briquetting 12, the pressing hole at brush box 4 back aimed at by briquetting 12, the bottom of pressing plate 11 is provided with fulcrum frame 13, the elastic force of spring with fulcrum 13 for axle, the rotation of the cam switch 14 in rotating shaft, make pressing plate 11 and briquetting 12 act on brush, namely spring plays a part to lock brush.
The beneficial effects of the utility model: excitation brush box of the present utility model can substitute keep-spring formula combination brush box with brush box after transformation, installs brush box and take off brush box free and relaxed; Constant force spring can be changed in time; Take off automatic locking brush in brush box process; Generator brush box Problems existing can be solved well, targetedly, also add mark in addition, former brush can be adopted, the structural innovation of brush box is improved, solve well and solve on-the-spot existing problems, ensure that generator excited system stable operation.
Accompanying drawing explanation
Fig. 1 is the utility model generator excitation brush box structural representation;
Fig. 2 is the controlling organization structural representation of generator excitation brush box;
In figure, 1-handle, 2-direction board, 3-wedge, 4-brush box, 5-accuses switch, 6-constant force spring, 7-brush, 8-nut, 9-perforate, 10-spring, 11-pressing plate, 12-briquetting, 13-fulcrum frame, 14-cam switch, 15-butterfly spring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment 1
A kind of generator excitation brush box, as shown in Figure 1, handle 1 is connected with direction board 2, direction board 2 is connected with wedge 3, wedge 3 is provided with brush box 4, and the bottom of brush box 4 is provided with accuses switch 5, and butterfly spring 15 is equipped with at the front handle place of brush box 4, the lead-in wire of brush 7 is connected with wedge 3 by nut 8, and brush 7 tape insulation block side pressure is connected on the bottom of constant force spring 6.
Described brush box 4 is also provided with the perforate 9 of fixing constant force spring 6.Described handle 1 is insulation handle.
The controlling organization of above-mentioned generator excitation brush box, as shown in Figure 2, spring 10 is connected with one end of pressing plate 11, the other end of pressing plate 11 is provided with briquetting 12, and the pressing hole at brush box 4 back aimed at by briquetting 12, and the bottom of pressing plate 11 is provided with fulcrum frame 13, the elastic force of spring with fulcrum 13 for axle, the rotation of the cam switch 14 in rotating shaft, makes pressing plate 11 and briquetting 12 act on brush, and namely spring plays a part to lock brush.
The generator excitation brush box of the present embodiment is finger controlled combination brush box, controls multiple charge switch with a cam switch, then by accusing the brush that switch control rule is corresponding.Accuse switch as people finger, accuse switch control rule brush, be independent of each other for one, lock discharge brush is reliable.It is power that finger controlled combination brush box is applied to water or vapour brush excitation generator, also comprises renovating of the old and new's power station generator brush box.The finger controlled group of critical piece composition such as box brush box wedge, brush box, charge switch, insulation handle, brush, indicator board.
Before finger controlled combination brush box does not work, tightly withstood bottom brush by finger controlled switch, guarantee that brush ejection failure under constant force spring effect is gone, namely brush is tightly locked in brush box, and each finger controlled switch controls corresponding brush independently; When needs brush box works, by rotating insulated handle, axle is followed handle and is rotated, and under the on-off action of axle, finger controlled switch and brush are thrown off, and brush, under the effect of constant force spring constant pressure, contacts brush and collector ring held stationary.、
The brush box of the present embodiment is installed free and relaxed, best brush distance: this brush box device is adjustable to optimum range 2 ~ 3mm to the distance of collector ring.
The brush box of the present embodiment has the locking relieving mechanism of only control brush, and briquetting and spring lay respectively at the two ends of fulcrum, and the elastic force of spring is that axle acts on brush by pressing plate and briquetting with fulcrum, and namely spring plays a part to lock brush.Reliably can lock brush or release brush by rotating handles (cam switch), that is can ensure take off brush box device safely and reliably and do not damage brush in running, change brush and be more prone to and facilitate.The mechanism of each independent control brush, as the finger of people, locks flexibly and comfortably or discharges corresponding brush;
Change constant force spring convenient and fast: constant force spring unit adopts board-like interface arrangment, and spring clip is arc shape, ensure that constant force spring unit tightly in clamping brush box groove, be more prone to when changing constant force spring unit and brush
Installation brush is convenient: the screw of fixed brush adopts the special hex screw of band flat recess, available multiple types of tools dismounting brush.
There is location notch between brush box and wedge and fix with four soket head cap screws, guaranteeing that brush box end face and collector ring are apart from identical and reliably fixing.
Brush pigtail is from brush end outlet and add insulation cushion at end face, guarantees that brush freely moves in brush box.
Claims (4)
1. a generator excitation brush box, it is characterized in that, handle (1) is connected with direction board (2), handle (1) is connected with wedge (3) by rotating shaft, wedge (3) is provided with brush box (4), the bottom of brush box (4) is provided with accuses switch (5), butterfly spring (15) is equipped with at the front handle place of brush box (4), the lead-in wire of brush (7) is connected with wedge (3) by nut (8), and brush (7) tape insulation block side pressure is connected on the bottom of constant force spring (6).
2. a kind of generator excitation brush box according to claim 1, is characterized in that, described brush box (4) is also provided with the perforate (9) of fixing constant force spring (6).
3. a kind of generator excitation brush box according to claim 1, is characterized in that, described handle (1) is insulation handle.
4. the controlling organization of generator excitation brush box described in claim 1, it is characterized in that, spring (10) is connected with one end of pressing plate (11), the other end of pressing plate (11) is provided with briquetting (12), the pressing hole on brush box (4) back aimed at by briquetting (12), the bottom of pressing plate (11) is provided with fulcrum frame (13), the elastic force of spring with fulcrum (13) for axle by pressing plate (11) and briquetting (12) through the rotary action of rotating shaft overhead cam switch (14) on brush, namely spring plays locking brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721674.6U CN204258558U (en) | 2014-11-27 | 2014-11-27 | A kind of generator excitation brush box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721674.6U CN204258558U (en) | 2014-11-27 | 2014-11-27 | A kind of generator excitation brush box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204258558U true CN204258558U (en) | 2015-04-08 |
Family
ID=52962821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420721674.6U Expired - Fee Related CN204258558U (en) | 2014-11-27 | 2014-11-27 | A kind of generator excitation brush box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204258558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473841A (en) * | 2018-11-23 | 2019-03-15 | 张宏伟 | Generator can charge disassembly brush carrier |
| CN110474495A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of anti-vibration dome armature structure |
-
2014
- 2014-11-27 CN CN201420721674.6U patent/CN204258558U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473841A (en) * | 2018-11-23 | 2019-03-15 | 张宏伟 | Generator can charge disassembly brush carrier |
| CN110474495A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of anti-vibration dome armature structure |
| CN110474495B (en) * | 2019-09-24 | 2024-05-14 | 上海电气集团上海电机厂有限公司 | Vibration-proof arc-shaped top armature structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20161127 |