CN203910370U - Insulation device used for carbon brush holders of generator - Google Patents
Insulation device used for carbon brush holders of generator Download PDFInfo
- Publication number
- CN203910370U CN203910370U CN201420271357.9U CN201420271357U CN203910370U CN 203910370 U CN203910370 U CN 203910370U CN 201420271357 U CN201420271357 U CN 201420271357U CN 203910370 U CN203910370 U CN 203910370U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- insulation
- insulation column
- post
- brush holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model discloses an insulation device used for carbon brush holders of a generator. The insulation device includes an insulation post, carbon brush holder installed on two ends of the insulation post, a screw rod penetrating through the center of the insulation post and insulation caps fixed on the screw rod and used for pressing the carbon brush holders on the insulation post. The insulation post is a cylinder with a smooth surface. A limiting device whose height is greater than the thickness of each carbon brush holder is arranged on each end of the insulation post in an extending manner. The carbon brush holders sleeve on the limiting devices. The insulation caps are provided with grooves fitting the limiting devices closely. Besides, the insulation caps, the carbon brush holders and the insulation post are pressed towards the middle part of the insulation post with nuts connected to the two ends of the screw rod. According to the utility model, since the insulation post and the insulation caps are in close fit, so that carbon powder is prevented from entering a gap between the insulation post and the insulation caps. At the same time, since the insulation post has the smooth surface, adhesive force of the carbon powder is reduced effectively and the forming of a closed circuit between the carbon brush holders and the ground due to the involvement of the carbon powder is prevented.
Description
Technical field
The utility model relates to a kind of seal for generator carbon brush frame.
Background technology
At present, there are normal mechanical wear and electric wearing and tearing in vertical type generator group carbon brush in running, the carbon dust that wearing and tearing produce is attached on carbon brush holder, the mist of oil producing with upper oil guide groove is again combined rear formation greasy dirt, insulation column and the earth by collector ring form path, cause generator rotor ground fault, have a strong impact on safety and the economical operation of unit.
Summary of the invention
For above-mentioned the deficiencies in the prior art part, the utility model provides a kind of and avoids high tacho generator carbon dust to cause the seal that generator rotor insulation reduces.
To achieve these goals, the technical solution adopted in the utility model is: a kind of seal for generator carbon brush frame, comprise insulation column, be arranged on the carbon brush holder at described insulation column two ends, pass the screw rod at described insulation column center and be fixed on described screw rod described carbon brush holder is pressed in to the insulator cap on described insulation column, described insulation column is ganoid cylindrical, described insulation column is extended with height higher than the stopping means of described carbon brush holder thickness to two ends, described carbon brush holder is socketed on described stopping means, described insulator cap is provided with the groove coordinating with described stopping means male and female, and described insulator cap, the nut that carbon brush holder is connected by screw rod two ends with insulation column in compression.
As preferably, described stopping means diameter is less than the diameter of insulation column.
As preferably, described stopping means height is higher than carbon brush holder thickness 10mm.
Compared with prior art, the beneficial effects of the utility model: the male and female fit structure of insulation column and insulator cap has avoided carbon dust to enter fit clearance; The smooth surface of insulation column has reduced the adhesive force of carbon dust simultaneously, avoids carbon dust to form path between carbon brush holder and the earth, avoids generator rotor ground fault.Safe operation coefficient and the economic benefit of generating set have greatly been improved.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model confined state structural representation;
Fig. 3 is the utility model original structure schematic diagram.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Former seal structure is as Fig. 3, when insulator cap (31 ~, 32 ~) by carbon brush holder (1, 11) be pressed on insulation column 2 ~ stopping means 6 ~ on, through by the screw rod 5 ~ perforation of each parts is fixed up, when seal is worked, insulator cap (31 ~, 32 ~) with insulation column 2 ~ do not have matching relationship, friction is larger each other, also can cause screw rod 5 ~ distortion, and then also can cause gap between each parts to increase, make carbon dust and screw rod 5 ~ contact, and the screw rod 5 that metal material is made ~ have conductivity, carbon dust and screw rod 5 ~ contact can cause between carbon brush holder and the earth form path, rotor is broken down, and insulation column 2 ~ surface irregularity, easily accumulate carbon dust and form conductive layer.
For the problems referred to above, applicant adopts following examples: referring to Fig. 1 and Fig. 2, a kind of seal for generator carbon brush frame, comprise insulation column, be arranged on the carbon brush holder (1 at described insulation column two ends, 11) pass the screw rod 5 at described insulation column 2 centers and be fixed on described screw rod 5 described carbon brush holder (1, 11) be pressed in the insulator cap (31 on described insulation column 2, 32), described insulation column 2 is ganoid cylindrical, described insulation column 2 is extended with height higher than described carbon brush holder (1 to two ends, 11) stopping means 6 of thickness, described carbon brush holder (1, 11) be socketed on described stopping means, described insulator cap (31, 32) be provided with the groove coordinating with described stopping means 6 male and females, and described insulator cap (31, 32), carbon brush holder (1, 11) nut 4 being connected by screw rod 5 two ends with insulation column 2 in compression.
As preferably, described stopping means 6 diameters are less than the diameter of insulation column 2.
As preferably, described stopping means 6 height are higher than carbon brush holder (1,11) thickness 10mm.
During use, with screw rod, pass insulation column, then carbon brush holder is arranged on the outstanding stopping means in insulation column two ends, secondly the groove of insulator cap is also coordinated with stopping means, finally nut is connected with screw rod and make nut in draw close and compress insulator cap, carbon brush holder, insulation column, device installation.This device insulator cap is all that male and female coordinates with coordinating of insulation column, avoid carbon dust to enter fit clearance and contact formation earth point with inner screw rod, the adhesive force that carbon dust is reduced in the outside that insulation column is smooth, has also just reduced carbon dust and from insulation column surface, has caused the probability of ground connection.
The above be the utility model preferred embodiment, it does not form the restriction to the utility model protection range, so long as with essentially identical means, realize the utility model object all should belong to protection range of the present utility model.
Claims (3)
1. the seal for generator carbon brush frame, comprise insulation column, be arranged on the carbon brush holder at described insulation column two ends, pass the screw rod at described insulation column center and be fixed on described screw rod described carbon brush holder is pressed in to the insulator cap on described insulation column, it is characterized in that: described insulation column is ganoid cylindrical, described insulation column is extended with height higher than the stopping means of described carbon brush holder thickness to two ends, described carbon brush holder is socketed on described stopping means, described insulator cap is provided with the groove coordinating with described stopping means male and female, and described insulator cap, the nut that carbon brush holder is connected by screw rod two ends with insulation column in compression.
2. a kind of seal for generator carbon brush frame according to claim 1, is characterized in that: described stopping means diameter is less than the diameter of insulation column.
3. a kind of seal for generator carbon brush frame according to claim 1, is characterized in that: described stopping means height is higher than carbon brush holder thickness 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271357.9U CN203910370U (en) | 2014-05-26 | 2014-05-26 | Insulation device used for carbon brush holders of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271357.9U CN203910370U (en) | 2014-05-26 | 2014-05-26 | Insulation device used for carbon brush holders of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910370U true CN203910370U (en) | 2014-10-29 |
Family
ID=51784627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420271357.9U Expired - Fee Related CN203910370U (en) | 2014-05-26 | 2014-05-26 | Insulation device used for carbon brush holders of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910370U (en) |
-
2014
- 2014-05-26 CN CN201420271357.9U patent/CN203910370U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20141029 Termination date: 20170526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |