CN202364022U - Dustproof protective device for electric tool motor winding - Google Patents
Dustproof protective device for electric tool motor winding Download PDFInfo
- Publication number
- CN202364022U CN202364022U CN2011204628670U CN201120462867U CN202364022U CN 202364022 U CN202364022 U CN 202364022U CN 2011204628670 U CN2011204628670 U CN 2011204628670U CN 201120462867 U CN201120462867 U CN 201120462867U CN 202364022 U CN202364022 U CN 202364022U
- Authority
- CN
- China
- Prior art keywords
- iron core
- slot wedge
- electric tool
- arc
- winding
- 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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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Disclosed is a dustproof protection apparatus for an electric tool motor winding, characterized in that: the periphery of an iron core is circumferentially and evenly provided with a plurality of punching sheet grooves extending in the axial direction; a rotor winding is arranged inside the iron core; the punching sheet groove is provided with a slot wedge in a clamping manner, the front end of the slot wedge is provided with an arc curve and covers rotor windings at two ends of the iron core; the arc curve is provided with small holes therein; and the front end of the arc curve is fixed upon the iron core. The dustproof protection apparatus of the utility model can be used to replace the previous slot wedge via even distribution. In addition, a cotton rope is used at the exposed end for fixation, and then an insulating protective paint of high strength is employed for packing, thus to protect the rotor winding. Moreover, the dustproof protection apparatus does not occupy the effective area inside the punching sheet grooves, and can improve the performance of a motor.
Description
Technical field
The utility model relates to the electric tool motor, is specifically related to series excited machine electric tool rotor winding proofing dust and protecting mechanism.
Background technology
Prior motor rotor winding is to be in unshielded state on the market; In case machine operates under the harsh condition of work; Such as cutting steel, stone etc., often have aggregate chips and iron filings to get into, when these aggregate chips and iron filings are run into the motor that runs up from the casing ventilating opening; Fragile enamelled wire be will damage, thereby motor broken string even burning machine caused.
The utility model content
The utility model technical problem to be solved just provides a kind of electric tool motor winding anti-dust protecting device, thereby effectively stops rotor to be damaged the life-span that winding improves motor by the sandstone of entering casing, iron filings etc. at work.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: a kind of electric tool motor winding anti-dust protecting device, and the week of iron core excircle upwards evenly is provided with some axially extended punching grooves, and the rotor winding is located in the iron core; It is characterized in that: be arranged with slot wedge in the said punching groove; Said slot wedge front end is arc-shaped bend portion and covers iron core two ends rotor winding, and said arc-shaped bend portion is provided with aperture, and said arc-shaped bend portion front end is fixed on the iron core.
As preferably, said arc-shaped bend portion front end is fixed with cotton cord and then is sealed with high strength insulation protection enamel-cover.
The rotor winding dust-proof mechanism that the utility model provides; Only needing to replace to newly-designed this case to original slot wedge cancellation is uniformly distributed with and arranges and in addition cotton cord is fixing is sealing with high strength insulation protection enamel-cover then at exposed junction; Realize protection with this to the rotor winding; Can not take simultaneously the effective area in the punching groove, improve motor properties, the used slot wedge of this case has the good insulation performance performance; Aperture on the slot wedge helps the heat radiation of motor, when increasing protection, does not influence the temperature rise of motor.Thereby thereby can effectively stop rotor to be damaged the life-span that winding improves motor by the sandstone of entering casing, iron filings etc. at work.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Fig. 1 is a slot wedge front view in the utility model;
Fig. 2 is a slot wedge vertical view in the utility model;
Fig. 3 snaps in sketch map behind the core stamping groove for slot wedge.
Embodiment
Specify the embodiment of a kind of electric tool motor of the utility model winding anti-dust protecting device referring to figs. 1 through Fig. 3; The week of iron core 4 excircles upwards evenly is provided with some axially extended punching grooves; Rotor winding 5 is located in the iron core, is arranged with slot wedge 1 in the said punching groove, and said slot wedge front end is arc-shaped bend portion 2 and covers iron core two ends rotor winding; Said arc-shaped bend portion is provided with aperture 3, and said arc-shaped bend portion front end is fixed on the iron core.Said arc-shaped bend portion front end is fixing and then seal with high strength insulation protection enamel-cover with cotton cord 6.
Following technical scheme is adopted in the arrangement of used slot wedge in this case: with reference to rotor technology; After operation 3 (winding coiling) is accomplished; Insert iron core at a distance from 60 degree from an end with slot wedge is every respectively, again slot wedge is spent insertion iron cores and rotor winding at a distance from 60 and is close to and puts in place with every at the iron core other end then.When machine operation is, this layer protection is similar to is covering a protection network on the rotor winding, when aggregate chips and iron filings will be run into the rotor winding of motor; Also can be blocked by this layer protection network; Reduce the probability of damage enamelled wire, life-span of having improved motor, guaranteed the quality of machine.
Claims (2)
1. electric tool motor winding anti-dust protecting device; The week of iron core (4) excircle upwards evenly is provided with some axially extended punching grooves; Rotor winding (5) is located in the iron core, it is characterized in that: be arranged with slot wedge (1) in the said punching groove, said slot wedge front end is arc-shaped bend portion (2) and covers iron core two ends rotor winding; Said arc-shaped bend portion is provided with aperture (3), and said arc-shaped bend portion front end is fixed on the iron core.
2. electric tool motor winding anti-dust protecting device according to claim 1 is characterized in that: said arc-shaped bend portion front end is fixing and then seal with high strength insulation protection enamel-cover with cotton cord (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204628670U CN202364022U (en) | 2011-11-18 | 2011-11-18 | Dustproof protective device for electric tool motor winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204628670U CN202364022U (en) | 2011-11-18 | 2011-11-18 | Dustproof protective device for electric tool motor winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364022U true CN202364022U (en) | 2012-08-01 |
Family
ID=46575178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204628670U Expired - Fee Related CN202364022U (en) | 2011-11-18 | 2011-11-18 | Dustproof protective device for electric tool motor winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364022U (en) |
-
2011
- 2011-11-18 CN CN2011204628670U patent/CN202364022U/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: 20120801 Termination date: 20171118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |