CN106602375A - Rotor commutator device - Google Patents
Rotor commutator device Download PDFInfo
- Publication number
- CN106602375A CN106602375A CN201510688072.4A CN201510688072A CN106602375A CN 106602375 A CN106602375 A CN 106602375A CN 201510688072 A CN201510688072 A CN 201510688072A CN 106602375 A CN106602375 A CN 106602375A
- Authority
- CN
- China
- Prior art keywords
- rotor
- commutator
- groove
- main shaft
- insulating sleeve
- 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.)
- Pending
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- Motor Or Generator Current Collectors (AREA)
Abstract
The present invention relates to a rotor commutator device. The device comprises an insulation sleeve, a plurality of commutator bars sleeved on the insulation sleeve and a rotor main shaft, the commutator bars are uniformly distributed on the outer contour of the insulation sleeve, the insulation sleeve is sleeved on the rotor main shaft, the inner contour is provided with a plurality of necks uniformly distributed along the axial direction of the sleeve, and the position corresponding to the rotor main shaft is provided with the projection corresponding to the necks of the insulation sleeve. The rotor commutator device is different from a common rotor commutator in installation, has necks facilitating clamping to allow the installation of the commutator to be more firm and ensure the firm matching at the secondary reinstallation.
Description
Technical field
The present invention relates to a kind of electric tool field of components, more particularly to a kind of rotor commutator dress
Put.
Background technology
Rotor is requisite part on electric tool, and diverter is that rotor is very important
One of part, is commonly called as commutator, is in order to allow motor on AC permanent magnet series-wound motor
The part for persistently rotating down.In structure, it is round that diverter is that several contact chips are surrounded,
Connect each tap on rotor respectively, outside connects two electrodes referred to as brush and contacts,
Two therein are contacted only simultaneously.Traditional diverter is carried out by the way of interference fit
Install, in general, once install to dismantle again, but add in actual
In work production process, due to the carelessness etc. for operating, need to remove diverter and reinstall,
It is difficult to ensure the firm of installation if so reinstalling again.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of rotor commutator dress for firmly installing
Put.
To solve above-mentioned technical problem, the technical scheme is that：A kind of rotor commutator dress
Put, its innovative point is：Including insulating sleeve, some commutator segments being set on insulating sleeve
And rotor main shaft, the commutator segment is distributed on insulating sleeve outline, the insulating sleeve
It is set on rotor main shaft, has on its Internal periphery some along the axial equally distributed card of sleeve
Groove, with the projection corresponding with insulating sleeve draw-in groove on the rotor main shaft correspondence position.
Further, the draw-in groove is gradually reduced from diverter one end to other end depth.
Further, the cross sectional shape of the draw-in groove is in isosceles trapezoid.
It is an advantage of the current invention that：
(1) a kind of rotor commutator device of the invention, the installation with common rotor commutator
Difference, with the draw-in groove for being easy to clamping so that diverter is more firmly mounted, secondary heavy
Stronger cooperation can be also kept during dress.
(2) diverter card can be obtained more firm by the draw-in groove with ramp type.
(3) the draw-in groove cross sectional shape of isosceles trapezoid, is easily installed, is more firmly mounted.
Description of the drawings
Fig. 1 is a kind of schematic diagram of rotor commutator device of the invention.
Specific embodiment
As shown in figure 1, the invention discloses a kind of rotor commutator device, including insulating sleeve
2nd, some commutator segments 1 being set on insulating sleeve 2 and rotor main shaft 5, commutator segment 1
It is distributed on 2 outline of insulating sleeve, insulating sleeve 2 is set on rotor main shaft 5, in which
Have on profile some along the equally distributed draw-in groove 4 in 2 axial direction of insulating sleeve, rotor main shaft 5 pairs
Answer on position with the projection 3 corresponding with insulating sleeve draw-in groove 4；Draw-in groove 4 is from diverter one
Other end depth is held to be gradually reduced；The cross sectional shape of draw-in groove 4 is in isosceles trapezoid.
Diverter is very important part on rotor, and in structure, diverter is that several contact chips enclose
Into round, connect each contact on rotor respectively, two electrodes of outside connection are referred to as brush
Contact, while only contacting two therein.The operation principle of diverter is passed through when coil
After electric current, can be in the presence of permanent magnet, by attracting to rotate with repulsive force, when it goes to
When balancing with Magnet, the contact for leading on the relatively corresponding diverter of line of electricity originally is just separated with brush
Open, and brush is connected to and meets on the corresponding contact of that group of coil for producing motive force, so not
The repetition for stopping down, and dc motor is just turned over.
Installed by the trapezoidal draw-in groove 4 on insulating sleeve 2 and male cooperation on rotor main shaft 5
Method, ensure that and be more firmly mounted, because draw-in groove 4 is Domatic draw-in groove；In some behaviour
Can be by diverter and rotor main shaft dismounting refitting, the knot with draw-in groove 4 in the case of making improperly
Structure ensure that the fastness of secondary installing；The position of draw-in groove can more accurately determine diverter
With the installation site of iron core.
The ultimate principle and principal character of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, above-described embodiment and description
Described in merely illustrate the principles of the invention, in the premise without departing from spirit and scope of the invention
Under, the present invention also has various changes and modifications, and these changes and improvements both fall within claimed
The scope of the invention in.The claimed scope of the invention is by appending claims and its equivalent
Thing is defined.
Claims (3)
1. a kind of rotor commutator device, it is characterised in that：Including insulating sleeve, it is set in absolutely
Some commutator segments and rotor main shaft on edge sleeve, the commutator segment are distributed on outside insulating sleeve
On profile, the insulating sleeve is set on rotor main shaft, is had some along set on its Internal periphery
The axial equally distributed draw-in groove of cylinder, on the rotor main shaft correspondence position with insulating sleeve card
The corresponding projection of groove.
2. a kind of rotor commutator device according to claim 1, it is characterised in that：Institute
State draw-in groove to be gradually reduced from diverter one end to other end depth.
3. a kind of rotor commutator device according to claim 1, it is characterised in that：Institute
The cross sectional shape for stating draw-in groove is in isosceles trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688072.4A CN106602375A (en) | 2015-10-20 | 2015-10-20 | Rotor commutator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688072.4A CN106602375A (en) | 2015-10-20 | 2015-10-20 | Rotor commutator device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602375A true CN106602375A (en) | 2017-04-26 |
Family
ID=58555310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510688072.4A Pending CN106602375A (en) | 2015-10-20 | 2015-10-20 | Rotor commutator device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106602375A (en) |
-
2015
- 2015-10-20 CN CN201510688072.4A patent/CN106602375A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170426 |
|
| WD01 | Invention patent application deemed withdrawn after publication |