CN201231673Y - Drive mechanism for electric vehicle - Google Patents
Drive mechanism for electric vehicle Download PDFInfo
- Publication number
- CN201231673Y CN201231673Y CNU2008200060712U CN200820006071U CN201231673Y CN 201231673 Y CN201231673 Y CN 201231673Y CN U2008200060712 U CNU2008200060712 U CN U2008200060712U CN 200820006071 U CN200820006071 U CN 200820006071U CN 201231673 Y CN201231673 Y CN 201231673Y
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- CN
- China
- Prior art keywords
- housing
- driver train
- drive shaft
- gear
- wheel
- 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 - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The utility model discloses a driving mechanism for an electric vehicle such as a wheel chair which has more stable and quieter operation and compact design; the driving mechanism comprises a shell provided with at least two shell parts; a rotary motor is mounted in the shell; the motor comprises a driving shaft provided with an inner end and an outer end. A spiral gear decelerator pair is mounted on the inner end of the driving shaft; an electromagnetic brake device is mounted on the shaft end of the motor on the inner end connected with the driving shaft, and used for the braking of the rotation of the driving shaft. Mounting devices which are matched with each other and arranged on the two shell body parts are aligned axially and used for mounting the driving mechanism, so as to enable the driving wheel of the electric vehicle to extend around the periphery of the external circumference of the shell.
Description
Technical field
The present invention relates to a kind of disabled person's of being used for driver train such as the elec. vehicle of wheelchair and motor scooter.
Background technology
The driver train that is used for wheelchair generally includes electrical motor and each gearbox parts of taking turns that is used for the independent drive left and right sidesing driving wheel.Improvement by gear parameter design and manufacturing processing continues to be devoted to reduce the deceleration transmission error in these mechanisms, the quantity and the manufacturing cost of constituent elements.Yet, still have the needs that further improve this driving.In order to make actuating device have the thickness of reduction, needs strengthen the actuating device diameter of drive wheel, therefore, can not reduce the diameter of drive wheel.The increase of drive wheel diameter brings under same load, and bigger motor torque acts on the problem on the drive wheel.In addition, under the situation that makes the electricity consumption wheelchair, when at indoor driving wheelchair, maybe bed is gone up or when moving on the wheelchair from the bed, the increase of drive wheel diameter can cause that drive wheel is easy to become the problem of obstacle when the user is moved to from wheelchair.
In the driving that illustrates in the prior art such as No. the 7th, 159,677, Agt's U.S. patent documents, reducing gearbox is included in and is parallel to output shaft and the driving by helical wheel and driven to the axle drive shaft on the bonded assembly input side.Driven wheel and axle drive shaft are integrally formed, are formed on the end of the axle drive shaft that protrudes from motor casing.Axle drive shaft is supported in a pair of bearing that is installed in the motor field frame rigidly, and by a bearings in the housing that is installed in gear case.
Summary of the invention
An object of the present invention is to provide a kind of driver train, this driver train comprises: the housing with at least two housing parts, with the gear that drives by the electric drive unit that is fastened to or another housing parts, this driver train overcome general type aforementioned known devices defective and aspect simplified structure, made improvement, thereby reduced cost.
According to an aspect of the present invention, provide a kind of driver train that is used for elec. vehicle, described driver train comprises:
Housing, described housing comprise at least two housing parts with fixed position,
Turning motor, described turning motor are installed at least one housing section office, and electrical motor comprises the axle drive shaft with interior and outer end,
Little and gear wheel in large diameter, described gear is fastened to housing parts and is meshing with each other so that gear reduction to be provided, and small diameter gear is supported on the first end place of first fixed position, and is driven by the inner of axle drive shaft,
Erecting device, described erecting device is used to install driver train on housing, make the drive wheel of elec. vehicle extend around the excircle of housing, and
The electromagnetic braking assembly, described electromagnetic braking assembly is installed in the axle head of electrical motor, and the inner of engages drive shaft, the rotation that is used to brake axle drive shaft.
The fixed position of its upper support small diameter gear is set to align with the rotating driveshaft of electrical motor, and simultaneously, the electromagnetic braking assembly also aligns with wheel shaft and S. A..This is arranged so that actuating device itself is compact, also makes it minor diameter can be imparted on the excircle drive wheel on every side that will be arranged on actuating device.Wherein the setting of S. A. and drive wheel has the side-play amount of centre of gration, to avoid unbalanced antagonistic force, small diameter gear is alignd with axle drive shaft, is used for more steady quiet operation in order to be subjected to antagonistic force under good state of equilibrium.
For actuating device of the present invention, the electromagnetic braking assembly is arranged on the outside of motor field frame, and this setting also increases the outside length of protruding as increasing from the weight of the case side of erecting device protrusion, and the thickness or the lateral dimension of minimizing driver train, compacter design is provided.In addition, by making electrical motor and electromagnetic braking components apart, the heat that produces in electrical motor will not be delivered to drg substantially, drg can be heated to higher temperature yet, has therefore avoided causing the reduction of its performance.
Preferred housing parts comprises the housing parts of inner substantially flat, and the body skin part with the concave surface that is used to hold little and gear wheel in large diameter.
Erecting device preferably includes the aperture of axially aligning of at least one pair of complementation, in every pair of aperture all is separately positioned on and on the body skin part.
Description of drawings
By example preferred form of the present invention is described with reference to corresponding accompanying drawing below, wherein:
Fig. 1 is the scheme drawing according to driver train of the present invention; And
Fig. 2 is the cross sectional drawing of the driver train of Fig. 1.
The specific embodiment
With reference to Fig. 1, compact driver train diagram is depicted as each wheel that is used to drive electric wheelchair.Driver train comprises turning motor 1, and turning motor 1 has gear case 2 and is installed in the brake assemblies 3 of its opposite end.In use, output shaft 4 is connected to the wheel hub of wheelchair (not shown).
Can understand the overall structure of driver train from Fig. 2 better, Fig. 2 illustrates gear case 2 and comprises interior and body skin part 71,72, in and body skin part 71,72 will have parallel shafts 9 respectively, 10 a pair of helical wheel 60,80 is packaged together, to reduce electrical motor 1 speed and to increase the moment of torsion that produces by electrical motor 1.Inner housing part 71 has bell, and comprises the concave surface of basic clamping gear 60,80, and body skin 72 is the plane substantially, and is used to utilize the open end of liner 81 base closed inner housing parts 71 therebetween.Gear wheel in large diameter 80 and output shaft 85 be leak-tight joint rotatably.Output shaft 85 is supported on respectively among bearing 11a, the 11b in the fixed position in the housing parts 71,72.Equally, small diameter gear 60 is rotaryed connection with axle drive shaft is tight, and is supported on respectively among bearing 13a, the 13b and the bearing 13c in the electrical motor on the fixed position in housing parts 71,72.
Gear 60 is coaxial with the axle drive shaft (61) of the electrical motor 1 that carries armature (11) usually.The main body of electrical motor 1 comprises the base pipe part 10 that covers the opposite end by end cap 13,14.
In some embodiments of the invention, small diameter gear 60 can be integrally formed with axle drive shaft, integrally formed with axle drive shaft with outer end and relative the inner, miniature gears 60 is arranged on this outer end and this outer end extends through and covers 13 outer end, and this relative the inner extends through inner end cap 14 to engage electromagnetic braking assembly 3.
Electromagnetic braking assembly 3 comprises by connecting the brake unit 20 that hub 23 drivings are connected to axle drive shaft.Manual handle 21 radially protrudes to the outside of brake unit 20, and actual around axle 9 rotation brake unit 20, to be used to brake/discharge the rotation of axle drive shaft.Flexible resilient lid 22 extends on brake unit 20, and has the radially alignment slot (not shown) of the handle 21 that is used to hold protrusion.
Driver train is installed in mode known in the art in the wheel hub of drive wheel of vehicle (not shown), makes drive wheel extend around the excircle of two housing parts 71,72.Driver train is installed in the mode of cantilever by erecting device and comprises that the complementary hole of axially aligning is to 91a, on two housing parts 71,72 of 91c.
Only aspect of the present invention has been described, but has should be appreciated that, can under the situation that does not deviate from scope of the present invention, make various modifications and interpolation on this basis by example.
Claims (3)
1. a driver train that is used for elec. vehicle is characterized in that, described driver train comprises:
Housing, described housing comprise at least two housing parts with fixed position,
Turning motor, described turning motor are installed at least one housing section office, and electrical motor comprises the axle drive shaft with interior and outer end,
Little and gear wheel in large diameter, described gear is fastened to housing parts and is meshing with each other so that gear reduction to be provided, and small diameter gear is supported on the first end place of first fixed position, and is driven by the inner of axle drive shaft,
Erecting device, described erecting device is used to install driver train on housing, make the drive wheel of elec. vehicle extend around the excircle of housing, and
The electromagnetic braking assembly, described electromagnetic braking assembly is installed in the axle head of electrical motor, and the inner of engages drive shaft, the rotation that is used to brake axle drive shaft.
2. driver train according to claim 1, wherein housing parts comprises the housing parts of inner substantially flat, and the body skin part with the concave surface that is used to hold little and gear wheel in large diameter.
3. driver train according to claim 1 and 2, wherein erecting device comprises the axially-aligned holes that at least one pair of is complementary, in every pair of hole all is separately positioned on and on the body skin part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200060712U CN201231673Y (en) | 2008-02-05 | 2008-02-05 | Drive mechanism for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200060712U CN201231673Y (en) | 2008-02-05 | 2008-02-05 | Drive mechanism for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201231673Y true CN201231673Y (en) | 2009-05-06 |
Family
ID=40618052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200060712U Expired - Lifetime CN201231673Y (en) | 2008-02-05 | 2008-02-05 | Drive mechanism for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201231673Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649743A (en) * | 2018-06-22 | 2018-10-12 | 甄红 | Large torque energy-saving motor |
-
2008
- 2008-02-05 CN CNU2008200060712U patent/CN201231673Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649743A (en) * | 2018-06-22 | 2018-10-12 | 甄红 | Large torque energy-saving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chiaphua Components Group of Companies Assignor: Chiaphua Components Ltd. Contract record no.: 2011990000451 Denomination of utility model: Drive mechanism for electric vehicle Granted publication date: 20090506 License type: Exclusive License Record date: 20110610 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090506 |