CN205212602U - Generator and motor insulation end cover insulation system - Google Patents
Generator and motor insulation end cover insulation system Download PDFInfo
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- CN205212602U CN205212602U CN201520943351.6U CN201520943351U CN205212602U CN 205212602 U CN205212602 U CN 205212602U CN 201520943351 U CN201520943351 U CN 201520943351U CN 205212602 U CN205212602 U CN 205212602U
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- insulating
- flange
- bearing pedestal
- end cover
- collar
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model discloses a generator and motor insulation end cover insulation system, including the bearing frame, the structural style of its one end is the flange, is equipped with the mounting hole on the flange, the lantern ring, it is installed on the bearing frame and is located between end cover and the bearing frame, and the lantern ring passes through the terminal surface location of bearing frame flange, the end cover, it is installed on the bearing frame, and is located the position department of the lantern ring, the bearing frame passes through the fastener to be installed on the end cover, and the fastener overcoat is equipped with insulating cover, and insulating cover is installed in the mounting hole, the insulating layer, it sets up on the surface of bearing frame, and the lantern ring and insulating layer are mutually by closing. The utility model discloses an add the lantern ring between end cover and bearing frame, compare in current structure, avoid making that the end cover is direct to contact with the insulating layer installing and removing the in -process to better protective insulation layer does not receive the damage when the assembly, thereby to the insulating properties's of insulating layer influence among the greatly reduced assembling process.
Description
Technical field
The utility model relates to electrical machine insulation equipment technical field, is specifically related to a kind of generator and insulating end cover for motor insulation system.
Background technology
At present, due to shaft current will be prevented the galvano-cautery of bearing, usually end cover designs is become insulated end cover, in order to realize end cap insulation, structurally, conventional method for designing is that end cover designs is become two parts, namely be divided into end cap and bearing pedestal, then, insulated in this two-part junction.Be specially: the connecting external diameter surface insulating barrier of bearing pedestal and end cap is covered, reaches the object of insulation.
But just because insulating barrier is positioned at the installed surface of end cap, and its hardness is lower, in assembling and dissembling process, very easily causes the damage of insulating barrier, affect the insulation property of insulating barrier.
The specification of this layer of insulating material has many kinds, and each producer specifies voluntarily according to the experience of oneself.Such as, useful epoxy glass fiber dipping without latitude band, also useful T9365 insulating cement etc.But the problem that the insulation of ubiquity end cap is unstable, though insulation resistance climate change differs greatly, is difficult to meet the application scenario higher to the requirement of end cap insulation property.As wind-driven generator requires that insulated end cover is under 1000V (DC), minimum insulation resistance is 50M Ω.Main cause is that the water absorption rate of these insulating material used is higher, when wet weather, easily sucks moisture, thus, cause decreasing insulating.
Utility model content
The purpose of this utility model is overcome deficiency of the prior art and provide a kind of generator and insulating end cover for motor insulation system.
To achieve these goals, a kind of generator and insulating end cover for motor insulation system, comprising: bearing pedestal, and the version of its one end is flange, and described flange is provided with installing hole; The collar, it is installed on described bearing pedestal and between described end cap and described bearing pedestal, the described collar is located by the end face of described bearing block flange; End cap, it is installed on bearing pedestal, and is positioned at the position of the collar; Described bearing pedestal is arranged on described end cap by securing member, is arranged with insulating case outside described securing member, and described insulating case is installed in described installing hole, and the outer surface of described insulating case and described bearing pedestal, the described collar are in contact; Insulating barrier, it is arranged on the outer surface of described bearing pedestal.
Preferably, the flange that the described collar comprises sleeve and is connected as a single entity with sleeve, described jacket casing is located on bearing pedestal, and the lateral surface of described flange and the flange of described bearing pedestal lean, and medial surface and the described end cap of described flange lean.
Preferably, the flange that described insulating case comprises sleeve pipe and is connected as a single entity with sleeve pipe, described casing pipe sleeve is located on described securing member, and the medial surface of described flange and the lateral surface of described bearing block flange lean, and the described collar and the closing of described insulating barrier phase.
Preferably, the inner surface of described installing hole is provided with insulating barrier.
Preferably, the outer surface of the flange of described bearing pedestal is provided with insulating barrier.
Preferably, described insulating barrier is ethylene-chlorinated coating.
The beneficial effects of the utility model:
1, between end cap and bearing pedestal, the collar is set up; compared to existing structure; avoid in assembling and dissembling process, make end cap directly contact with insulating barrier; be not damaged when assembling better to protect insulating barrier; thus the impact greatly reduced on the insulation property of insulating barrier in assembling process; ensure that electric current can not pass through rotating shaft, play well prevention rotating shaft galvanic corrosion and produce.
2, at the outer surface of bearing pedestal, insulating barrier is set, the outer surface of bearing block flange establishes insulating barrier, and above insulating barrier is everywhere connected as one, the inner surface of the installing hole on bearing block flange is provided with insulating barrier, insulating barrier simultaneously in installing hole also connects with the insulating barrier on flange outer face, thus the entirety forming insulating barrier on bearing pedestal covers, creepage distance is made to increase several times, avoid the existing insulating sleeve that only uses to disconnect the electric loop between electric machine stand and rotating shaft, there is the problem that creepage distance is short, guarantee the insulation between electric machine stand and rotating shaft, more safe and reliable.
3, insulating case is set to the flange comprising sleeve pipe and be connected as a single entity with sleeve pipe, instead of in prior art the form be arranged on respectively by securing member with insulating sleeve and insulating washer on flange, arrange as a whole by existing insulating sleeve and insulating washer, thus compared to existing insulating sleeve and insulating washer, make that there is in the utility model the larger advantage of creepage distance.
The inner surface of the installing hole 4, on bearing block flange is provided with insulating barrier, and the insulating barrier on the insulating barrier at this place and bearing block flange outer surface is connected as one, thus makes insulation on bearing pedestal end face, form overall coverage rate.
5, adopt ethylene-chlorinated (ECTFE) material as insulating layer material, use electrostatic painting process to be sprayed to pedestal bearing insulation surface of position, due to the performance that its material is superior, ensure that the insulation property of end cap are safe and reliable.
6, adopt ethylene-chlorinated (ECTFE) material as insulating layer material, owing to being provided with insulating case to increase creepage distance, therefore insulating barrier can arrange thinner, its thickness is 1/4th of existing structure thickness of insulating layer, therefore, make the radiating effect of bearing better, be conducive to the heat radiation of bearing.
7 by arranging insulation insulating case, and insulation technology index can reach, and before end cap is installed, under 1000V (DC), the minimum insulation resistance of insulating case is 50M Ω; Before end cap is installed, the dieletric strength of insulating case is: 3000V (DC)/min; Before end cap is installed, the breakdown voltage strength of insulating case is: 4000V (DC).
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged diagram of in Fig. 1 II;
In figure: 1, bearing pedestal, 11, flange, 12, installing hole, 2, the collar, 21, sleeve, 22, flange; 3, end cap, 4, insulating case; 41, sleeve pipe; 42, flange; 5, insulating barrier; 6, securing member.
Embodiment
The purpose of this utility model is to provide a kind of generator and insulating end cover for motor insulation system, and its structure is simple, and insulation property are safe and reliable, and effectively increase creepage distance.
In order to make those skilled in the art person understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figure 1 with shown in Fig. 2, the generator that Fig. 1 provides for a kind of specific embodiment of the utility model and insulating end cover for motor insulation system principle schematic, Fig. 2 is the enlarged diagram at II place in Fig. 1, shows the installation cooperation structure of the bearing pedestal 1 of this generator and insulating end cover for motor insulation system, end cap 3, the collar 2, insulating case 4 and insulating barrier 5.
In a kind of specific embodiment, as described in Figure 1, the utility model provides a kind of generator and insulating end cover for motor insulation system, comprising: bearing pedestal 1, end cap 3, the securing member 6 be arranged on by end cap 3 on bearing pedestal 1, the insulating case 4 that is arranged at the collar 2 between bearing pedestal 1 and end cap 3 and is set in outside securing member 6.
The version of bearing pedestal 1 one end is flange 11, and flange 11 is provided with installing hole 12; The collar 2 is installed on bearing pedestal 1, and the collar 2 is located by the end face of bearing pedestal 1 flange 11; End cap 3 is installed on bearing pedestal 1, and is positioned at the position of the collar 2; Bearing pedestal 1 is arranged on end cap 3 by securing member 6, is arranged with insulating case 4 outside securing member 6, and insulating case 4 is installed in installing hole 12, and the outer surface of insulating case 4 and bearing pedestal 1, the collar 2 are in contact; Insulating barrier 5, it is arranged on the outer surface of bearing pedestal 1, and the collar 2 and the closing of insulating barrier 5 phase.
Further, the flange 22 that the collar 2 comprises sleeve 21 and is connected as a single entity with sleeve 21, sleeve 21 is sheathed on bearing pedestal 1, and the lateral surface of flange 22 and the flange 11 of bearing pedestal 1 lean, and medial surface and the end cap 3 of flange 22 lean.In one embodiment, the collar 2 is set to sleeve 21 and the flange on sleeve 21 22, sleeve 21 is the cylindrical shape of hollow, flange 22 is located on the outer wall of sleeve 21, such collar 2 can be located by flange 11 by flange 22, because sleeve 21 is set on bearing pedestal 1, therefore sleeve 21 contacts with the insulating barrier 5 be arranged on bearing pedestal 1 outer surface, and end cap 3 will carry out coordinating with sleeve 21 after installing and install, thus avoid end cap 3 and directly contact with insulating barrier 5, better protection insulating barrier 5 is not damaged when assembling, thus the impact greatly reduced on the insulation property of insulating barrier 5 in assembling process, ensure that electric current can not pass through rotating shaft, play well prevention rotating shaft galvanic corrosion to produce.
Further, the flange 42 that insulating case 4 comprises sleeve pipe 41 and is connected as a single entity with sleeve pipe 41, sleeve pipe 41 is sheathed on securing member 6, and the medial surface of flange 42 and the lateral surface of bearing pedestal 1 flange 11 lean, and the collar 2 and the closing of insulating barrier 5 phase.Sleeve pipe 41 is the cylindrical shape of hollow, flange 42 is located on the outer wall of sleeve 21, for ease of the collar 2 in the process manufactured, location and installation between end cap 3 and bearing pedestal 1, the collar 2 and end cap 3 are respectively equipped with the through hole that arrange coaxial with bearing pedestal 1 installing hole 12, like this when insulating case 4 is arranged on installing hole 12, sleeve pipe 41 stretches in the through hole of installing hole 12 and the collar 2 and end cap 3 simultaneously, flange 42 is positioned on bearing pedestal 1 end face, thus insulating case 4 is located, then mounting fastener 6 in insulating case 4, even if the outer surface of described insulating case 4 and bearing pedestal 1, the collar 2 is in contact, and the collar 2, end cap 3 and bearing pedestal 1 are installed to be one.In one embodiment, existing insulating case 4 is managed and arranges with insulating washer as a whole, thus to manage and insulating washer compared to existing insulating case 4, make insulating case 4 have the larger advantage of creepage distance.
Further, the inner surface of installing hole 12 is provided with insulating barrier 5.
Further, the outer surface of the flange 11 of bearing pedestal 1 is provided with insulating barrier 5.
In technique scheme, at the outer surface of bearing pedestal 1, insulating barrier 5 is set, the outer surface of bearing pedestal 1 flange 11 establishes insulating barrier 5, and above insulating barrier 5 is everywhere connected as one, the inner surface of the installing hole 12 on bearing pedestal 1 flange 11 is provided with insulating barrier 5, insulating barrier 5 simultaneously in installing hole 12 also connects with the insulating barrier 5 on flange 11 outer surface, thus the entirety forming insulating barrier 5 on bearing pedestal 1 covers, creepage distance is made to increase several times, avoid existing insulating case 4 pipe that only uses to disconnect the electric loop between electric machine stand and rotating shaft, there is the problem that creepage distance is short, guarantee the insulation between electric machine stand and rotating shaft, more safe and reliable.
Further, insulating barrier 5 is ethylene-chlorinated coating.Concrete, ethylene-chlorinated coating is adopt electrostatic painting process to spray to the Insulated positions of bearing pedestal 1 on the surface, ensure that insulation property are safe and reliable, owing to being provided with insulating case 4 to increase creepage distance, therefore insulating barrier 5 can arrange thinner, and its thickness is 1/4th of existing structure insulating barrier 5 thickness, therefore, make the radiating effect of bearing better, be conducive to the heat radiation of bearing.
It is the main performance index of ECTFE (ethylene-chlorinated coating) material in one following table
These are only better embodiment of the present utility model, the utility model is not limited to above-mentioned execution mode, the structural modification that local is small may be there is in implementation process, if do not depart from spirit and scope of the present utility model to various change of the present utility model or modification, and belonging within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these change and modification.
Claims (7)
1. generator and an insulating end cover for motor insulation system, is characterized in that, comprising:
Bearing pedestal, the version of its one end is flange, and described flange is provided with installing hole;
The collar, it is installed on described bearing pedestal and between described end cap and described bearing pedestal, the described collar is located by the end face of described bearing block flange;
End cap, it is installed on bearing pedestal, and is positioned at the position of the collar;
Described bearing pedestal is arranged on described end cap by securing member, is arranged with insulating case outside described securing member, and described insulating case is installed in described installing hole;
Insulating barrier, it is arranged on the outer surface of described bearing pedestal, and the described collar and the closing of described insulating barrier phase.
2. a kind of generator according to claim 1 and insulating end cover for motor insulation system, it is characterized in that, the flange that the described collar comprises sleeve and is connected as a single entity with sleeve, described jacket casing is located on bearing pedestal, the lateral surface of described flange and the flange of described bearing pedestal lean, and medial surface and the described end cap of described flange lean.
3. a kind of generator according to claim 1 and insulating end cover for motor insulation system, it is characterized in that, the flange that described insulating case comprises sleeve pipe and is connected as a single entity with sleeve pipe, described casing pipe sleeve is located on described securing member, and the medial surface of described flange and the lateral surface of described bearing block flange lean.
4. a kind of generator according to claim 3 and insulating end cover for motor insulation system, it is characterized in that, the described collar and end cap are respectively equipped with the through hole coaxially arranged with the installing hole of described bearing pedestal, the sleeve pipe of described insulating case stretches in installing hole and through hole simultaneously, and the outer surface of described insulating case and described bearing pedestal, the described collar are in contact.
5. a kind of generator according to claim 1 and insulating end cover for motor insulation system, is characterized in that, the inner surface of described installing hole is provided with insulating barrier.
6. a kind of generator according to claim 1 and insulating end cover for motor insulation system, is characterized in that, the outer surface of the flange of described bearing pedestal is provided with insulating barrier.
7. a kind of generator according to claim 1,2,3,4,5 or 6 and insulating end cover for motor insulation system, is characterized in that, described insulating barrier is ethylene-chlorinated coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943351.6U CN205212602U (en) | 2015-11-23 | 2015-11-23 | Generator and motor insulation end cover insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943351.6U CN205212602U (en) | 2015-11-23 | 2015-11-23 | Generator and motor insulation end cover insulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205212602U true CN205212602U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520943351.6U Active CN205212602U (en) | 2015-11-23 | 2015-11-23 | Generator and motor insulation end cover insulation system |
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| Country | Link |
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| CN (1) | CN205212602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154698A (en) * | 2017-05-18 | 2017-09-12 | 中车永济电机有限公司 | Combination of wind-driven generator insulated end cover |
-
2015
- 2015-11-23 CN CN201520943351.6U patent/CN205212602U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154698A (en) * | 2017-05-18 | 2017-09-12 | 中车永济电机有限公司 | Combination of wind-driven generator insulated end cover |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: 411101 No.9, Chayuan Road, high tech Zone, Xiangtan City, Hunan Province Patentee after: Hunan Chongde Technology Co., Ltd Address before: 411101 Hunan Province, Xiangtan Shuangma Industrial Park Yuetang Hunan Chongde Industry Technology Co Ltd Patentee before: HUNAN SUND INDUSTRIAL AND TECHNOLOGICAL Co.,Ltd. |