CN204669152U - A kind of wheelchair turns to brush motor with 90 degree - Google Patents
A kind of wheelchair turns to brush motor with 90 degree Download PDFInfo
- Publication number
- CN204669152U CN204669152U CN201520303080.8U CN201520303080U CN204669152U CN 204669152 U CN204669152 U CN 204669152U CN 201520303080 U CN201520303080 U CN 201520303080U CN 204669152 U CN204669152 U CN 204669152U
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- China
- Prior art keywords
- motor
- gear
- degree
- center tooth
- idler gear
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a kind of wheelchair and turns to brush motor with 90 degree, comprise the slowing-down structure in Gearbox, motor, electromagnetic brake, reduction box is second gear reduction unit structure, comprise the idler gear on center tooth axle, the output gear engaged with center tooth axle, the axle head of motor shaft is spiral bevel gear, the spindle nose of this motor shaft is horizontally through motor front end cover and engages with idler gear, it rotates the idler gear driven in Gearbox, idler gear synchronously drives center tooth axle to rotate, thus center tooth axle drives output gear to rotate, output gear and output shaft synchronous rotate, this output shaft is perpendicular to motor shaft.The utility model is little large with power in order to realize volume, and select brush motor, product cost is also lower; Use spiral bevel gear as the core part of electric machine speed reduction mechanism, reduction volume can be played, the effect of stable drive, and 90 degree can be completed turn to, wheelchair can be realized and fold to greatest extent.
Description
Technical field
The utility model relates to DC permanent magnet brush motor, more particularly, is that a kind of wheelchair turns to brush motor with 90 degree.
Background technology
Brush motor on current wheelchair is not all 90 degree and turns to, and when wheelchair folds, impact folds size, and packaging, cost of transportation are increased, the 90 degree of motors turned to occurred, adopt traditional worm gear structure transmission, reducing gear size is larger, weight is excessive, and efficiency is low, and backlash is too large; And existing helical gear reducer, contact ratio and overlap ratio is little, and transmission is not steady, and noise is large, fragile; Brush motor afterbody is without electromagnetic brake, and wheelchair coasting distance is long.
Utility model content
In order to solve the problems referred to above that prior art exists, the purpose of this utility model proposes a kind of wheelchair to turn to brush motor with 90 degree.
For achieving the above object, the utility model is solved by following technical scheme:
A kind of wheelchair turns to brush motor with 90 degree, comprise the slowing-down structure in Gearbox, motor, electromagnetic brake, described reduction box is second gear reduction unit structure, comprise the idler gear on center tooth axle, the output gear engaged with described center tooth axle, the axle head of described motor shaft is spiral bevel gear, the spindle nose of this motor shaft is horizontally through described motor front end cover and engages with described idler gear, it rotates the idler gear driven in described Gearbox, this idler gear synchronously drives described center tooth axle to rotate, thus described center tooth axle drives output gear to rotate, described output gear and output shaft synchronous rotate, this output shaft is perpendicular to described motor shaft.
As preferred technical scheme:
Wheelchair described in the utility model turns to brush motor with 90 degree, describedly also comprises the electromagnetic brake be connected with motor.
Wheelchair described in the utility model turns to brush motor with 90 degree, and described Gearbox and described motor front end cover are the integrated design.
Wheelchair described in the utility model turns to brush motor with 90 degree, and described electromagnetic brake is placed in electromagnetic brake cover, and this electromagnetic brake cover and described motor back cover are screwed.
Wheelchair described in the utility model turns to brush motor with 90 degree, and described idler gear and output gear are discoid.
Wheelchair described in the utility model turns to brush motor with 90 degree, described idler gear and center tooth axial compression are riveting and connect rear two ends and add bearing and be fixed in described Gearbox, output gear is added bearing and is fixed in described Gearbox after being connected with output shaft by key, and ensures that center tooth axle engages with output gear.
Owing to adopting above technical scheme, the utility model is little large with power in order to realize volume, and select brush motor, product cost is also lower; Use spiral bevel gear as the core part of electric machine speed reduction mechanism, reduction volume can be played, the effect of stable drive, and 90 degree can be completed turn to, wheelchair can be realized and fold to greatest extent.In order to make meshed transmission gear registration large, the volume of identical speed reducing ratio lower gear is little, therefore the hypoid gear under spiral bevel gear employing circle-arc tooth system; The utility model is because adopting screw conic tooth gear reduction, and make whole product under identical speed reducing ratio, machine volume is little, lightweight, and output torque is large, and efficiency is high, stable drive, and the life-span is longer; Electromagnetic brake can make Brake of wheel-chair distance reduce, and the security performance of wheelchair significantly improves.
Accompanying drawing illustrates:
Fig. 1 is the utility model cutaway view;
Fig. 2 is structure chart of the present utility model.
Embodiment
Below with reference to the accompanying drawings and embodiment, the utility model is described in further detail:
As Fig. 1, shown in 2, a kind of wheelchair of the present utility model turns to brush motor with 90 degree, comprise the slowing-down structure in Gearbox, be placed in the motor in motor housing 7, Gearbox and motor front end cover integrated design, reduction box is second gear reduction unit structure, comprise the discoid idler gear 3 on center tooth axle 2, the discoid output gear 4 engaged with center tooth axle 2, after idler gear 3 and center tooth axle 2 press and be connected, two ends add bearing 6 and are fixed in Gearbox, output gear 4 is added bearing after being connected with output shaft 5 by key and is fixed in Gearbox, and ensure that center tooth axle 2 engages with output gear 4, the axle head of motor shaft 1 is spiral bevel gear, the spindle nose of this motor shaft 1 is horizontally through motor front end cover 16 and engages with idler gear 3, it rotates the idler gear 3 driven in Gearbox, this idler gear 3 synchronously drives center tooth axle 2 to rotate, thus center tooth axle 2 drives output gear 4 to rotate, output gear 4 and output shaft 5 synchronous axial system, this output shaft 5 is perpendicular to motor shaft 24.
In the utility model, also comprise the electromagnetic brake be connected with motor, electromagnetic brake can make Brake of wheel-chair distance reduce, and the security performance of wheelchair significantly improves, and electromagnetic brake is placed in electromagnetic brake cover 8, and this electromagnetic brake cover 8 is screwed with motor back cover 7.
In the utility model, the axle head of motor shaft 1 directly mills out helicon gear.
A kind of wheelchair of the present utility model turns to brush motor to form primarily of three parts with 90 degree: motor, reduction box, electromagnetic brake; Wherein in motor brush motor stator on fixing main pole and brush are installed, rotor is provided with armature winding and commutator, direct current enters armature winding by brush and commutator, produce armature supply, the magnetic field that armature supply produces and main field interact and produce electromagnetic torque, make motor shaft rotarily drive load; Reduction box of the present utility model is second gear reduction unit structure, and primary speed-down is that spiral bevel gear slows down, and motor shaft drives idler gear, and complete primary speed-down, wherein motor shaft head number is 4, and the idler gear number of teeth is 26, completes 6.5 times of decelerations; Double reduction is that cylindric spiral gear slows down, idler gear and center tooth axle synchronous axial system, and center tooth axle drives output gear to complete double reduction, and the center tooth axle number of teeth is 15, and the output gear number of teeth is 57, completes 3.8 times of decelerations; The dynamic load of output shaft band.(note i total=6.5 × 3.8=24.7 ≈ 25); Under "on" position, electromagnetic brake electromagnet produces magnetic field, sucks making leaf spring, and stage clip compresses, and clutch plastic sheet is free to rotate, and motor shaft is also free to rotate, belongs to brake releasing orientation.When power is off, magnetic field dissipate, stage clip recovers former length and clutch plastic sheet cannot be rotated because of frictional force by making leaf spring and the clamping of fixing egative film, and hexagonal fixed block and motor shaft are also lockable, and complete brake function.
Above-mentioned embodiment is exemplary, is to better make those skilled in the art understand this patent, can not be interpreted as it is restriction this patent being comprised to scope; As long as according to spirit that this patent discloses, any equivalent change done or modification, all fall into the scope that this patent comprises.
Claims (6)
1. a wheelchair turns to brush motor with 90 degree, comprise the slowing-down structure in Gearbox, motor, electromagnetic brake, it is characterized in that: described reduction box is second gear reduction unit structure, comprise the idler gear on center tooth axle, the output gear engaged with described center tooth axle, the axle head of described motor shaft is spiral bevel gear, the spindle nose of this motor shaft is horizontally through described motor front end cover and engages with described idler gear, it rotates the idler gear driven in described Gearbox, this idler gear synchronously drives described center tooth axle to rotate, thus described center tooth axle drives output gear to rotate, described output gear and output shaft synchronous rotate, this output shaft is perpendicular to described motor shaft.
2. wheelchair according to claim 1 turns to brush motor with 90 degree, it is characterized in that: describedly also comprise the electromagnetic brake be connected with motor.
3. wheelchair according to claim 1 turns to brush motor with 90 degree, it is characterized in that: described Gearbox and described motor front end cover are the integrated design.
4. wheelchair according to claim 2 turns to brush motor with 90 degree, it is characterized in that: described electromagnetic brake is placed in electromagnetic brake cover, and this electromagnetic brake cover and described motor back cover are screwed.
5. wheelchair according to claim 1 turns to brush motor with 90 degree, it is characterized in that: described idler gear and output gear are discoid.
6. wheelchair according to claim 5 turns to brush motor with 90 degree, it is characterized in that: described idler gear and center tooth axial compression are riveting and connect rear two ends and add bearing and be fixed in described Gearbox, and output gear is added bearing and is fixed in described Gearbox after being connected with output shaft by key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303080.8U CN204669152U (en) | 2015-05-12 | 2015-05-12 | A kind of wheelchair turns to brush motor with 90 degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303080.8U CN204669152U (en) | 2015-05-12 | 2015-05-12 | A kind of wheelchair turns to brush motor with 90 degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204669152U true CN204669152U (en) | 2015-09-23 |
Family
ID=54139494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520303080.8U Expired - Fee Related CN204669152U (en) | 2015-05-12 | 2015-05-12 | A kind of wheelchair turns to brush motor with 90 degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204669152U (en) |
-
2015
- 2015-05-12 CN CN201520303080.8U patent/CN204669152U/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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170407 Address after: 243001 Ma'anshan province and County Economic Development Zone, Anhui, Yu and road, No. 2 Patentee after: Anhui Medical Equipment Co., Ltd. Address before: 201800 Jiading District Road, Shanghai, No. 2465 warehouse Road, building 5 Patentee before: BEI ZHEN MEDICAL EQUIPMENT (SHANGHAI) CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190704 Address after: 2 storeys, 8 blocks, 2465 Hengcang Highway, Jiading District, Shanghai, 201801 Patentee after: BEI ZHEN MEDICAL EQUIPMENT (SHANGHAI) CO., LTD. Address before: 243001 Yuxi Helu No. 2, Ma'anshan Hexian Economic Development Zone, Anhui Province Patentee before: Anhui Medical Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20200512 |