CN207021851U - A kind of rotor of brushed DC motor - Google Patents
A kind of rotor of brushed DC motor Download PDFInfo
- Publication number
- CN207021851U CN207021851U CN201720847997.3U CN201720847997U CN207021851U CN 207021851 U CN207021851 U CN 207021851U CN 201720847997 U CN201720847997 U CN 201720847997U CN 207021851 U CN207021851 U CN 207021851U
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- rotor
- brushed
- keyway
- ring
- installation axle
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Abstract
The utility model discloses a kind of rotor of brushed DC motor, including installation axle, the upper surface of the installation axle is provided with interior first keyway, the outer surface fixed cover of the installation axle has rotor core, the inner upper end of the rotor core is provided with the second keyway, the internal slide of second keyway is connected with flat key, the outer surface lower slide of the flat key is connected to the interior surface of the first keyway, the outer surface of the rotor core is provided with winding slot, the interior surface lower end of the winding slot is wound with rotor coil, the outer surface fixed cover of the rotor core has back-up ring, the interior surface of the back-up ring is fixedly connected with block, the block is slidably connected to the interior surface upper end of winding slot.The back-up ring that the rotor of the brushed DC motor is connected by block, the open slot of winding slot is closed, the structure type of annular wire-fixing jacket is combined by winding displacement groove, the rotating property of rotor can be greatly improved, improve service life.
Description
Technical field
Rotor technical field is the utility model is related to, specially a kind of rotor of brushed DC motor.
Background technology
Refer to realize electric energy conversion or a kind of calutron transmitted according to the law of electromagnetic induction in motor, it is existing to have brush
Motor is contacted to carry out the commutation in magnetic field with collector ring at work, by brush.And the rotor core of existing motor is mostly
The winding slot of hatch frame, easily formed and be vortexed with air when rotating, so as to influence the speed of rotor rotation, but also can produced
Raw more heat, the security of rotor is influenceed, another aspect brush motor needs to install collector ring, and this just needs electric wire will
Collector ring and rotor coil connect, easily cause connecting line arrangement it is lack of standardization, can not only influence the rotation of support shaft, also can
Cause electric wire to wear, influence the service life of rotor.
Utility model content
The purpose of this utility model is to provide a kind of rotor of brushed DC motor, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides following technical scheme：A kind of rotor of brushed DC motor, including
Installation axle, the upper surface of the installation axle are provided with interior first keyway, and the outer surface fixed cover of the installation axle has rotor core,
The inner upper end of the rotor core is provided with the second keyway, and the internal slide of second keyway is connected with flat key, the flat key
Outer surface lower slide be connected to the interior surface of the first keyway, the outer surface of the rotor core is provided with winding slot, described
The interior surface lower end of winding slot is wound with rotor coil, and the outer surface fixed cover of the rotor core has back-up ring, the gear
The interior surface of circle is fixedly connected with block, and the block is slidably connected to the interior surface upper end of winding slot.
Preferably, the identical length of the installation axle, rotor core and back-up ring is consistent.
Preferably, the front-end surface of the installation axle is provided with front support axle, and the rear end surface of the installation axle props up after being provided with
Axle is supportted, the equal interference in outer surface of the front support axle and rear support axle is connected with bearing, the outer surface both sides of the rear support axle
Winding displacement groove is equipped with, the outer surface of the winding displacement groove is provided with annular groove, and the inside of the annular groove is connected with annular solidus
Set.
Preferably, the annular wire-fixing jacket is made of rubber, and external diameter is not more than the external diameter of rear support axle.
Preferably, the rear end surface of the rear support axle is provided with thread spindle, and the outer surface front end sleeve of the thread spindle has
Collector ring, the appearance surface rear end of the thread spindle are threaded with fixing nut.
Preferably, the front-end surface of the fixing nut is slidably connected to the rear end surface of collector ring.
Compared with prior art, the beneficial effects of the utility model are：The rotor of the brushed DC motor is connected by block
The back-up ring connect, the open slot of winding slot can be closed, reduce the frictional resistance of also air, reduce the generation of heat, then have just
It is the structure type that annular wire-fixing jacket is combined by winding displacement groove, is easy to arrangement connection electric wire, avoids wearing, can greatly improve and turn
The rotating property of son, improve service life.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is that back-up ring of the present utility model connects sectional view；
Fig. 3 is that collector ring of the present utility model connects sectional view；
Fig. 4 is the view in transverse section of winding displacement groove of the present utility model.
In figure：1 installation axle, 11 first keyways, 12 rotor cores, 13 second keyways, 14 flat keys, 15 winding slots, 16 rotors
Coil, 17 back-up rings, 18 blocks, 2 rear support axles, 21 front support axles, 22 bearings, 23 winding displacement grooves, 24 annular grooves, 25 annular solidus
Set, 26 thread spindles, 27 collector rings, 28 fixing nuts.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-4 are referred to, the utility model provides a kind of technical scheme：A kind of rotor of brushed DC motor, including peace
Axle 1 is filled, the upper surface of installation axle 1 is provided with the first keyway 11, and the outer surface fixed cover of installation axle 1 has rotor core 12, rotor
The inner upper end of iron core 12 is provided with the second keyway 13, and the internal slide of the second keyway 13 is connected with flat key 14, the appearance of flat key 14
Face lower slide is connected to the interior surface of the first keyway 11, and the outer surface of rotor core 12 is provided with winding slot 15, winding slot 15
Interior surface lower end be wound with rotor coil 16, the outer surface fixed cover of rotor core 12 has back-up ring 17, installation axle 1, turns
Sub- iron core 12 is consistent with the identical length of back-up ring 17, can so seal up the complete circle of winding slot 15, avoid air from entering and shape
Into vortex, frictional resistance is substantially reduced, avoids heat too high, improves rotating property, the interior surface of back-up ring 17 is fixedly connected
There is block 18, block 18 is slidably connected to the interior surface upper end of winding slot 15, and the front-end surface of installation axle 1 is provided with front support axle
21, the rear end surface of installation axle 1 is provided with rear support axle 2, and the equal interference in outer surface of front support axle 21 and rear support axle 2 is connected with axle
22 are held, the outer surface both sides of rear support axle 2 are equipped with winding displacement groove 23, and the outer surface of winding displacement groove 23 is provided with annular groove 24, annular
The inside of groove 24 is connected with annular wire-fixing jacket 25, and annular wire-fixing jacket 25 is made of rubber, and external diameter is not more than rear support axle 2
External diameter, rubber is flexible to be easily installed, but also the outer surface of rear support axle 2 will not be damaged and be interfered, improve
Performance, the rear end surface of rear support axle 2 are provided with thread spindle 26, and the outer surface front end sleeve of thread spindle 26 has collector ring 27,
The appearance surface rear end of thread spindle 26 is threaded with fixing nut 28, and the front-end surface of fixing nut 28 is slidably connected to collector ring
27 rear end surface, collector ring 27 can be fixed, be easy to rear support axle 2 while rotate.
The utility model is in the specific implementation：Back-up ring 17 can be slided to noose when mounted to the appearance of rotor core 12
Face, while ensure that block 18 enters the inner upper end of winding slot 15, the space inside winding slot 15 can be filled, while may be used also
To fix the position of back-up ring 17, ensure stability, so when rotating, air will not enter winding slot 15 and be internally formed whirlpool
Stream, and the outer surface of back-up ring 17 and air contact, surface are rounder and more smooth, can reduce frictional resistance, will also reduce heat
Produce, greatly improve rotating property, and when connecting collector ring 27, it can be placed into connecting wire inside winding displacement groove 23, so
Wire entanglement can be avoided, the inside of annular groove 24 is then snapped into using annular wire-fixing jacket 25 made of rubber, will can be led
Line is firmly pressed in the bottom of winding displacement groove 23, avoids being higher by rear support axle 2, can greatly improve winding displacement effect, avoids wearing, also
The service life of rotor can be improved.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of rotor of brushed DC motor, including installation axle (1), it is characterised in that：The upper surface of the installation axle (1) is set
There is the first keyway (11), the outer surface fixed cover of the installation axle (1) has rotor core (12), the rotor core (12)
Inner upper end is provided with the second keyway (13), and the internal slide of second keyway (13) is connected with flat key (14), the flat key
(14) outer surface lower slide is connected to the interior surface of the first keyway (11), and the outer surface of the rotor core (12) is provided with
Winding slot (15), the interior surface lower end of the winding slot (15) are wound with rotor coil (16), the rotor core (12)
Outer surface fixed cover has back-up ring (17), and the interior surface of the back-up ring (17) is fixedly connected with block (18), the block
(18) it is slidably connected to the interior surface upper end of winding slot (15).
A kind of 2. rotor of brushed DC motor according to claim 1, it is characterised in that：The installation axle (1), rotor
Iron core (12) is consistent with the identical length of back-up ring (17).
A kind of 3. rotor of brushed DC motor according to claim 1, it is characterised in that：Before the installation axle (1)
End surfaces are provided with front support axle (21), and the rear end surface of the installation axle (1) is provided with rear support axle (2), the front support axle
(21) and the equal interference in outer surface of rear support axle (2) is connected with bearing (22), and the outer surface both sides of the rear support axle (2) are all provided with
There is winding displacement groove (23), the outer surface of the winding displacement groove (23) is provided with annular groove (24), the inside card of the annular groove (24)
It is connected to annular wire-fixing jacket (25).
A kind of 4. rotor of brushed DC motor according to claim 3, it is characterised in that：The annular wire-fixing jacket (25)
It is made of rubber, and external diameter is not more than the external diameter of rear support axle (2).
A kind of 5. rotor of brushed DC motor according to claim 3, it is characterised in that：The rear support axle (2)
Rear end surface is provided with thread spindle (26), and the outer surface front end sleeve of the thread spindle (26) has collector ring (27), the thread spindle
(26) appearance surface rear end is threaded with fixing nut (28).
A kind of 6. rotor of brushed DC motor according to claim 5, it is characterised in that：The fixing nut (28)
Front-end surface is slidably connected to the rear end surface of collector ring (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847997.3U CN207021851U (en) | 2017-07-13 | 2017-07-13 | A kind of rotor of brushed DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847997.3U CN207021851U (en) | 2017-07-13 | 2017-07-13 | A kind of rotor of brushed DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207021851U true CN207021851U (en) | 2018-02-16 |
Family
ID=61484543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720847997.3U Active CN207021851U (en) | 2017-07-13 | 2017-07-13 | A kind of rotor of brushed DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207021851U (en) |
-
2017
- 2017-07-13 CN CN201720847997.3U patent/CN207021851U/en active Active
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