CN207218456U - A kind of drive mechanism between the driving wheel and brushless electric machine of electric wheelchair - Google Patents
A kind of drive mechanism between the driving wheel and brushless electric machine of electric wheelchair Download PDFInfo
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- CN207218456U CN207218456U CN201720768430.7U CN201720768430U CN207218456U CN 207218456 U CN207218456 U CN 207218456U CN 201720768430 U CN201720768430 U CN 201720768430U CN 207218456 U CN207218456 U CN 207218456U
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- driving wheel
- brushless electric
- reducing
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Abstract
Drive mechanism between the driving wheel and brushless electric machine of a kind of electric wheelchair disclosed in the utility model, driving wheel, brushless electric machine and reducing gear including electric wheelchair, it is characterized in that, the brushless electric machine and reducing gear are arranged at outside the wheel hub of the driving wheel of the electric wheelchair and the brushless electric machine is connected as a single entity with the reducing gear, the input power connector of the output shaft of the brushless electric machine and the reducing gear, the output shaft of the reducing gear are connected with the wheel hub power of the driving wheel of the electric wheelchair.Drive mechanism between the driving wheel and brushless electric machine of the utility model electric wheelchair has the advantages of easy for installation, hub size is small, in light weight.
Description
Technical field
It the utility model is related to electric wheelchair technical field, the driving wheel and brushless electric machine of more particularly to a kind of electric wheelchair
Between drive mechanism.
Background technology
Wheelchair is lower limb physical disabilities and the indispensable walking-replacing tool of old people.Most of wheelchairs are by multiplying
Member's both hands drive trailing wheel to travel, and also have direct current motor driven electric wheelchair or electric wheel-chair vehicle.Electric wheel-chair vehicle is one
Kind controls the power wheel Wheel-chair of driving using battery as the energy, electronic installation.User can pass through control device voluntarily driving wheel
Wheel-chair is advanced.
Each power wheel in existing electric wheelchair has a motor to be driven by reduction gear, but is used for
The load pressure of the coil of the motor of driving power wheel, carbon brush and gear is big, and service life is short, and it is existing be used to driving it is dynamic
The volume of the motor of wheels is larger, causes electric wheelchair very heavy.
Brshless DC motor is made up of motor body and driver, is a kind of typical electromechanical integrated product.Due to
Brushless direct current motor is run with autocontrol, so will not turn as the synchronous motor of heavy load starting under frequency control
Another plus startup winding, will not also produce vibration and step-out in load changing on son.The brushless direct current motor of Small And Medium Capacity
Permanent magnet, use rare-earth Nd-Fe-B (Nd-Fe-B) materials of high energy product now more.Therefore, rare earth permanent magnetic brushless motor
Volume ratio reduces a seat No. with capacity threephase asynchronous.
Brushless electric machine has the following advantages that compared with brush motor：
1st, brushless, low interference
Brushless electric machine eliminates brush, most directly change be exactly without brush motor operate caused by electric spark,
Thus greatly reduce interference of the electric spark to remote-control radio electric equipment.
2nd, noise is low, smooth movements
Brushless electric machine is without brush, and frictional force greatly reduces during operating, and operation is smooth, and noise can be much lower, and this is excellent
Point is a huge support for model running stability.
3rd, long lifespan, low-maintenance cost
Brush is lacked, the abrasion of brushless electric machine is mainly on bearing, and in terms of mechanical angle, brushless electric machine is almost one
The non-maintaining motor of kind, when necessary, it need to only do some dedustings maintenance.
Chinese patent Authorization Notice No. CN103312084B discloses a kind of electric wheel-chair vehicle brush DC driving wheel structure,
It has the advantages of transmission efficiency, good energy-conserving effect, high operational efficiency, but planetary gear speed reducing mechanism is arranged on wheel hub by it
In so that the wheel hub of driving wheel becomes big, and weight increase, it is very inconvenient to install.
Utility model content
Technical problem to be solved in the utility model is that the technology present in existing brushless electric machine driving wheel is asked
Inscribe and provide it is a kind of it is easy for installation, hub size is small, the transmission between the driving wheel and brushless electric machine of electric wheelchair in light weight
Structure.
Technical problem to be solved in the utility model can be achieved through the following technical solutions：
A kind of drive mechanism between the driving wheel and brushless electric machine of electric wheelchair, including the driving wheel of electric wheelchair, nothing
Brush motor and reducing gear, it is characterised in that the brushless electric machine and reducing gear are arranged at the driving of the electric wheelchair
Outside the wheel hub of wheel and the brushless electric machine is connected as a single entity with the reducing gear, the output shaft of the brushless electric machine and the deceleration
The input power connector of mechanism, the wheel hub power of the output shaft of the reducing gear and the driving wheel of the electric wheelchair connect
Connect.
In a preferred embodiment of the present utility model, the output shaft of the reducing gear is defeated with the brushless electric machine
Shaft is located on same axis.
In a preferred embodiment of the present utility model, the reducing gear also includes the first end cap, the second end cap, tool
There are deceleration box, at least motor output gear, the primary planet pinion reducing gear of internal gear, first end cap and the second end
Cover on the both ends of the fixed deceleration box with internal gear, first end cap is also fixedly connected with the brushless electric machine, institute
The output shaft for stating brushless electric machine enters in the deceleration box with internal gear through first end cap, the motor output
The output shaft that gear is fixed on the brushless electric machine enters in the deceleration box with internal gear, the planetary gear speed-reduction
In the deceleration box with internal gear, power is passed through the planetary gear speed-reduction by the motor output gear for mechanism
Mechanism is transferred to the output shaft, and the output shaft has one end through second end cap and the driving wheel of the electric wheelchair
Wheel hub power connects.
In a preferred embodiment of the present utility model, the planetary gear reducing mechanism slows down for two-stage planet
Planetary gear one side and the motor output gear engaged transmission in mechanism, wherein first order planetary gear reducing mechanism, separately
On the one hand and the internal gear engaged transmission in deceleration box, the central gear in first order planetary gear reducing mechanism and described the
Planetary gear engaged transmission in secondary planetary gear reducing mechanism, the planetary gear in the second level planetary gear reducing mechanism is also
With the internal gear engaged transmission in deceleration box, pinion frame in the second level planetary gear reducing mechanism with it is described defeated
Shaft power connector.
As a result of technical scheme as above, the biography between the driving wheel and brushless electric machine of the utility model electric wheelchair
Dynamic structure has the advantages of easy for installation, hub size is small, in light weight.
Brief description of the drawings
Fig. 1 is the structural representation of the drive mechanism between the driving wheel and brushless electric machine of electric wheelchair of the present utility model
Figure.
Fig. 2 is the brushless electric machine in the drive mechanism between the driving wheel and brushless electric machine of electric wheelchair of the present utility model
Assembling schematic diagram between reducing gear.
Embodiment
Referring to Fig. 1, the drive mechanism in figure between the driving wheel and brushless electric machine of a kind of electric wheelchair, including electric wheelchair
Driving wheel 100, brushless electric machine 200 and reducing gear 300, brushless electric machine 200 and reducing gear 300 are arranged at electric wheelchair
Driving wheel 100 wheel hub 110 it is outer and brushless electric machine 200 is connected as a single entity with reducing gear 300, the output shaft of brushless electric machine 200
With the input power connector of reducing gear 300, the wheel of the output shaft 310 of reducing gear 300 and the driving wheel 100 of electric wheelchair
Hub power connector.
The output shaft 310 of reducing gear 300 is located on same axis with the output shaft of brushless electric machine 200.
Referring to Fig. 2, reducing gear 300 includes the first end cap 320, the second end cap 330, the reduction box with internal gear 341
Body 340, motor output gear 350, two-stage planet reducing gear 360,370.
On the both ends for the deceleration box 340 with internal gear 341 that first end cap 320 and the second end cap 330 are fixed, first
End cap 320 is also fixedly connected by bolt 321 with brushless electric machine 200, and the output shaft 210 of brushless electric machine 200 passes through the first end cap
320 enter in the deceleration box 340 with internal gear 341, and motor output gear 350 is fixed on the output shaft of brushless electric machine 200
210 enter in the deceleration box 340 with internal gear 341.
The one side of planetary gear 361 in first order planetary gear reducing mechanism 360 engages biography with motor output gear 350
It is dynamic, on the other hand with the engaged transmission of internal gear 341 in deceleration box 340, in first order planetary gear reducing mechanism 360 too
Positive gear 362 and the engaged transmission of planetary gear 371 in second level planetary gear reducing mechanism 370, second level planetary gear speed-reduction
Planetary gear 371 in mechanism 370 also with the engaged transmission of internal gear 341 in deceleration box 340, second level planet-gear speed reducer
Pinion frame 372 and the power connector of output shaft 310 in structure 370.Output shaft 310 has one end through the second end cap 330 and electricity
The power connector of wheel hub 110 of the driving wheel 100 of wheelchair.
Claims (4)
1. the drive mechanism between the driving wheel and brushless electric machine of a kind of electric wheelchair, including it is the driving wheel of electric wheelchair, brushless
Motor and speed reducer structure, it is characterised in that the brushless electric machine and reducing gear are arranged at the driving wheel of the electric wheelchair
Wheel hub it is outer and the brushless electric machine is connected as a single entity with the reducing gear, the output shaft of the brushless electric machine and the reductor
The input power connector of structure, the output shaft of the reducing gear are connected with the wheel hub power of the driving wheel of the electric wheelchair.
2. the drive mechanism between the driving wheel and brushless electric machine of a kind of electric wheelchair as claimed in claim 1, its feature exist
In the output shaft of the output shaft of the reducing gear and the brushless electric machine is located on same axis.
3. the drive mechanism between the driving wheel and brushless electric machine of a kind of electric wheelchair as claimed in claim 1 or 2, its feature
It is, the reducing gear also includes the first end cap, the second end cap, has the deceleration box of internal gear, motor output gear, extremely
Few primary planet pinion reducing gear, the both ends for the deceleration box with internal gear that first end cap and the second end cap are fixed
On, first end cap is also fixedly connected with the brushless electric machine, and the output shaft of the brushless electric machine passes through first end cap
Into in the deceleration box with internal gear, the output shaft that the motor output gear is fixed on the brushless electric machine enters
In the deceleration box with internal gear, the planetary gear reducing mechanism is positioned at the deceleration box with internal gear
In, power is transferred to the output shaft, the output shaft by the motor output gear by the planetary gear reducing mechanism
There is one end to be connected through second end cap with the wheel hub power of the driving wheel of the electric wheelchair.
4. the drive mechanism between the driving wheel and brushless electric machine of a kind of electric wheelchair as claimed in claim 3, its feature exist
In the planetary gear reducing mechanism is two-stage planet reducing gear, wherein in first order planetary gear reducing mechanism
Planetary gear on the one hand and the motor output gear engaged transmission, on the other hand with the internal gear engaged transmission in deceleration box,
Central gear in first order planetary gear reducing mechanism and the planetary gear engaged transmission in the planetary gear reducing mechanism of the second level,
Planetary gear in the second level planetary gear reducing mechanism also with the internal gear engaged transmission in deceleration box, the second level
Pinion frame in planetary gear reducing mechanism is connected with the outputting axial power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720768430.7U CN207218456U (en) | 2017-06-27 | 2017-06-27 | A kind of drive mechanism between the driving wheel and brushless electric machine of electric wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720768430.7U CN207218456U (en) | 2017-06-27 | 2017-06-27 | A kind of drive mechanism between the driving wheel and brushless electric machine of electric wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207218456U true CN207218456U (en) | 2018-04-10 |
Family
ID=61812147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720768430.7U Active CN207218456U (en) | 2017-06-27 | 2017-06-27 | A kind of drive mechanism between the driving wheel and brushless electric machine of electric wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207218456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895121A (en) * | 2018-09-07 | 2018-11-27 | 浙江森凯汽车科技有限公司 | Worm type of reduction gearing and decelerating motor |
| CN109950990A (en) * | 2019-03-25 | 2019-06-28 | 王召伟 | A kind of band eccentric gear brushless motor |
-
2017
- 2017-06-27 CN CN201720768430.7U patent/CN207218456U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895121A (en) * | 2018-09-07 | 2018-11-27 | 浙江森凯汽车科技有限公司 | Worm type of reduction gearing and decelerating motor |
| CN108895121B (en) * | 2018-09-07 | 2024-05-03 | 莱科(衢州市)科技有限公司 | Worm gear reducer and gear motor |
| CN109950990A (en) * | 2019-03-25 | 2019-06-28 | 王召伟 | A kind of band eccentric gear brushless motor |
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