CN107176259A - A kind of mounted in medium of bicycle motor shaft passes drive system - Google Patents
A kind of mounted in medium of bicycle motor shaft passes drive system Download PDFInfo
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- CN107176259A CN107176259A CN201710555624.3A CN201710555624A CN107176259A CN 107176259 A CN107176259 A CN 107176259A CN 201710555624 A CN201710555624 A CN 201710555624A CN 107176259 A CN107176259 A CN 107176259A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 239000004519 grease Substances 0.000 claims description 8
- 238000005461 lubrication Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001727 in vivo Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
- B62H5/00—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
- B62H5/08—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles preventing the drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Drive system is passed the present invention relates to a kind of mounted in medium of bicycle motor shaft, including motor, gear train, axle transmission component and the housing for accommodating said modules, wherein, motor is external rotor electric machine, including the stator and rotor being coaxially disposed, the lateral ends of rotor are provided with the connected motor output of rotor;Gear train includes gear train input and gearset output, gear train input is connected with motor output, and gearset output is connected with axle transmission component, and housing is tubbiness, housing side is provided with connecting hole and connection position, and connecting hole and connection position are connected with axle transmission component.The present invention reduces weight by setting shaft transmission system to substitute traditional linked transmission, reduces volume and improves transmission efficiency, using built-in motor process auxiliary drive, travel speed is improved, impression of riding is lifted, it is driven by built-in motor side connecting shaft, improves drive system integrated level and optimize appearance design.
Description
Technical field
Drive system is passed the present invention relates to driving equipment field, more particularly to a kind of mounted in medium of bicycle motor shaft.
Background technology
Bicycle is one of the most frequently used vehicles, and with technology and economic development, electric assisted bicycle is gradually emerging
Rise and be it is popular receive, traditional bicycle, generally using chain type transmission structure, easily clothing is made dirty because chain type transmission structure is present
Thing, linked transmission is less efficient, is easily damaged, the shortcomings of resistance is larger, and more excellent Chainless type drive mechanism occurs immediately,
In existing moped, shortage is a kind of can be real with the drive system that Chainless type drive mechanism is good fit and moulding is good
Now the power-assisted to Chainless Bicycle drives.
The content of the invention
In view of this, drivetrain is passed in order to overcome the deficiencies in the prior art present invention to provide a kind of mounted in medium of bicycle motor shaft
System, by setting shaft drive to substitute traditional chain type transmission structure, by setting the built-in motor of coaxial design and being passed with axle
Dynamic connection, simplifies design, improves integrated level and aesthetics, is driven by design gear, greatly improves transmission efficiency, compact conformation
And energy-conserving and environment-protective.
In order to realize above-mentioned technical purpose, the invention discloses following technical scheme:
A kind of mounted in medium of bicycle motor shaft passes drive system, including:
Motor, gear train, axle transmission component and the housing for accommodating said modules,
Wherein,
The motor is external rotor electric machine, including the stator and rotor being coaxially disposed, the lateral ends of the rotor are set
There is the connected motor output of the rotor;
The gear train includes gear train input and gearset output, and the gear train input and the motor are defeated
Go out portion's connection, the gearset output is connected with axle transmission component.
Further, the motor output is the interior motor output shaft for setting axis hole, and the motor output shaft is socketed tooth
Wheel;
Or, the motor output is the interior gear for setting axis hole and rotor integrative-structure;
The stator center is provided with axle mounting hole, and the axis of belt sensor sequentially passes through the axle mounting hole and the axle
Hole.
Further, the axis of the belt sensor includes axis and the sensor being arranged on axis, the sensing
Device is torque sensor, velocity sensor or torque-speed compound sensor, and the axis body of axis partially passes through the whole electricity
Machine, axis body part front end outer side is provided with axis body spline, and the sensor is socketed in the stator, the axis with
The motor output is coaxially connected.
Further, the axle transmission component includes loop bar and drive link, and the drive link is co-axially located at the set
In bar, and can freely it be rotated relative to the loop bar.
Further, the gear train is arranged on the motor output leading portion, and the gear train is planetary gearsets
Or common ratio wheel group.
Further, when the gear train is planetary gearsets, the gear train is planetary gearsets, including tooth
Circle, sun gear, planetary gear, planet carrier, the gear ring are fixed with the housing, and the sun gear is socketed in the motor output
On, the planetary gear is arranged on the planet carrier, the planetary gear be provided with it is multigroup, multigroup planetary gear surround the tooth
The axis of circle is into equidistant around arrangement, and the gear ring is connected by the planetary gear with the sun gear on the motor output,
The planet carrier lateral ends are provided with gearset output, the gear train input is sun gear, and the gear train is defeated
It is gear train output shaft or switching support to go out end, and the gear train output shaft connects tooth sector group.
Operationally, the sun gear being arranged on rotor is rotated, and drives planetary gear to be had enough to meet the need around sun gear, due to tooth
Circle is fixed with housing, and planetary gear promotes planet carrier to slow down and exported.Above-mentioned output shaft is replaceable into switching support, to connect difference
Output precision
Preferably, it is provided with the planet carrier lateral ends on output bracket, output bracket and is provided with ratchet, the spine
Wheel is arranged on output bracket inner side and coaxially connected with the output bracket, and coaxial be socketed with tramples branch in the output bracket
Frame, the support of trampling connects the tooth sector group, and described trample is provided with spline, the spline and institute on the inside of support
The axis body spline for stating axis connects and realizes Synchronous Transmission.
Further, when the gear train is common ratio wheel group, the gear train is connected by multiple double-layer gears
Form and be intermeshed transmission, the gear of the gear and the motor output of the gear train input is coaxially connected, described
The direct geared of gearset output uses tooth sector, gear and the gearset output of the gear train input
Gear is coaxial or non-coaxial connection.
Further, the gearset output with described drive link one end is by the tooth sector group or is connected dress
Connection is put, the other end of axle transmission component is provided with tooth sector, the usual tooth sector is bevel gear, more preferably, the tooth
Take turns as spiral bevel gear, the gear is connected with the gear being fixed on vehicle hub, realize the driving to vehicle.
Further, the tooth sector group includes connecting the output gear of the gearset output and connection is driven
The input gear of bar, the output gear is meshed with the input gear, the gearset output and the drive link according to
Transmission by the tooth sector group is directly connected to, and wherein steering angle is between 80 ° -120 °.Optimized angle 90-110 ° it
Between.
Further, the attachment means are Hooks coupling universal coupling or universal joint.
Further, the gear in the tooth sector group is bevel gear, helical gear, helical gear, straight-tooth or imperial crown
Gear.
Further, the gear in the gear train is spur gear, helical gear, herringbone bear, bevel gear or helical tooth
Wheel.
Further, the housing is tubbiness, and the housing side is provided with connecting hole and connection position, the connecting hole
It is connected with the connection position with the axle transmission component.
Further, the planetary gearsets are arranged in first gear case, and the first gear case is moistened using dry and wet
Sliding, the tooth sector group is arranged in second gear case, and second gear case is using grease lubrication and is designed as half dry type or wet
Formula lubricates, the first gear case and the second gear case by switching support separation, the switching support, axis and
The O-ring seal or lip seal circle for sealing the second gear case are provided with loop bar.
Further, it is provided with the planet carrier lateral ends on output bracket, output bracket and is provided with ratchet, institute
State ratchet and be arranged on output bracket inner side and coaxially connected with the output bracket, coaxial be socketed with is trampled in the output bracket
Support, the support of trampling connects the tooth sector group, and described trample is provided with spline on the inside of support, the spline with
The axis body spline of the axis connects and realizes Synchronous Transmission.
Further, the mounted in medium of bicycle motor shaft, which passes drive system, also includes parking brake device, the parking
Brake gear is arranged in housing, and the parking brake device includes pushing meanss and lock tooth, and the pushing meanss pass through push rod
It is connected with the lock tooth, the pushing meanss are connected with the housing, the pushing meanss can be magnetic valve or be electricity
The leading screw slide unit of machine driving,
When the lock tooth is arranged at output gear, locking is engaged with the output gear;
When the lock tooth is arranged at input gear, locking is engaged with the input gear.
Beneficial effects of the present invention are:
1) by setting shaft transmission system to substitute traditional linked transmission, weight is reduced, reduces volume and improves transmission efficiency.
2) by setting the built-in motor of coaxial design and being connected in housing side opening and axle, drive system is improved
Integrated level simultaneously optimizes appearance design.
3) by designing planetary reduction gear wheel group and bevel gear, improve output torque and realize the steering of output shaft.
4) preferably helical tooth, helical teeth design, improves transmission system carrying smoothness, reduces running noises.
Brief description of the drawings
Fig. 1 passes the overall structure diagram of drive system for a kind of mounted in medium of bicycle motor shaft of the invention;
Fig. 2 passes another overall structure diagram of drive system for a kind of mounted in medium of bicycle motor shaft of the invention;
Fig. 3 passes the lubricating system schematic diagram of drive system for a kind of mounted in medium of bicycle motor shaft of the invention;
Fig. 4 passes the brake schematic diagram of drive system for a kind of mounted in medium of bicycle motor shaft of the invention.
Reference:
1st, housing;2nd, stator;3rd, rotor;4th, motor output;5th, planetary gear;6th, gear ring;7th, planet carrier;8th, switching branch
Frame, 8-3, output bracket, 8-2, ratchet, trample support at 8-1;9th, loop bar;10th, drive link;11st, input gear;11-2, wheel hub
Drive gear;12nd, output gear;13rd, sensor;14th, axis;15th, magnetic valve;16th, tooth is locked;A, first gear case;B, second
Gear-box.
Embodiment
Embodiment 1
As shown in figs. 1 and 3, drive system is passed present embodiment discloses a kind of mounted in medium of bicycle motor shaft, including:
Motor, gear train, axle transmission component and the housing 1 for accommodating said modules,
The motor is external rotor electric machine, including the stator 2 and rotor 3 being coaxially disposed, rotor 3 can freely turn with stator 2
Dynamic, the lateral ends of the rotor 3 are provided with the motor output 4 being connected with rotor 3;
The gear train includes gear train input and gearset output, and the gear train input and the motor are defeated
Go out portion 4 to connect, the gearset output is connected with axle transmission component.
More specifically, the motor output 4 is the interior motor output shaft for setting axis hole, the motor output shaft is socketed tooth
Wheel.
More specifically, the motor output 4 is the interior gear for setting axis hole and rotor integrative-structure.
More specifically, the stator 2 is provided centrally with axle mounting hole, the axis of belt sensor sequentially passes through the axle and installed
Hole and the axis hole.
More specifically, the axis of the belt sensor includes axis 14 and the sensor 13 being arranged on axis 14, it is described
Sensor 13 is torque sensor, velocity sensor or torque-speed compound sensor, and the axis body of axis 14 is partially passed through entirely
Motor, its front end outer side is provided with axis body spline, and sensor 13 is socketed in stator 2, and the axis 14 and the motor are defeated
Go out portion 4 coaxially connected;
More specifically, the axle transmission component includes loop bar 9 and drive link 10, the drive link 10 is co-axially located at described
In loop bar 9, and can freely it be rotated relative to the loop bar 9.
Further, the gear train is arranged on the leading portion of motor output 4;
Further, the gear train is planetary gearsets, including gear ring 6, sun gear, planetary gear 5, planet carrier 7, institute
State gear ring 6 to fix with the housing 1, the sun gear is socketed on the motor output 4, and the planetary gear 5 is arranged on institute
State on planet carrier 7, the planetary gear 5 is provided with 5 groups, and 5 groups of planetary gears 5 are arranged around the axis of the gear ring 6 into equidistant surround,
The gear ring 6 is connected by the planetary gear 5 with the sun gear on the motor output 4, in the lateral ends of planet carrier 7
Gearset output is provided with, the gear train input is sun gear, and the gearset output is gear train output shaft, tooth
Wheel group output shaft can connect tooth sector group.Gear train output shaft is also replaceable into switching support 8, to connect different output groups
Part.Operationally, the sun gear being arranged on the motor output 4 of rotor 3 is rotated, and drives planetary gear 5 to surround sun gear
Turnover, because gear ring 6 is fixed with housing 1, planetary gear 5 promotes planet carrier 7 to slow down and exported.
Planetary gear 5 can also set as required 2 groups, 4 groups, or more group, in addition, the planetary gearsets can also utilize general
Logical gear transmission structure is substituted even with structures such as belt, timing belts, is seldom limited herein.
The inner side of gear train output shaft or switching support 8 is provided with spline, the axis body spline of the spline and axis 14
Coordinate, realize the synchronous interaction of axis 14 and gear train output shaft or switching support 8, it is ensured that the coordination output of manpower and motor.
More specifically, the gearset output is connected with drive link 10 by the tooth sector group.
More specifically, the tooth sector group includes connecting the output gear 12 of the gearset output and connection is driven
The input gear 11 of bar 10, the output gear 12 is meshed with the input gear 11, the gearset output and transmission
Bar 10 is directly connected to by the transmission of the tooth sector group.
More specifically, the output gear 12 and the input gear 11 are bevel gear, helical gear, helical gear, straight-tooth
Or imperial crown gear.Wherein bevel gear, helical gear, helical gear can set different tapers according to the actual requirements, realize different angles
Transmission.Drive link 10 is connected with tooth sector or transfer, and the tooth sector is helical gear, bevel gear or helical tooth
Wheel.The length of drive link 10 can carry out free regulation, drive link 10 and gear train according to bicycle wheel footpath or different designs demand
One end of output end connection is provided with the input gear 11 as tooth sector, and the other end that drive link is connected with wheel is provided with
Wheel hub drive gear 11-2 as tooth sector.Gearset output (is specially passed by tooth sector group with transmission component
Lever 10) connection transmission, e.g., it is intermeshed using bevel gear, realizes 90 degree of commutations of transmission direction.In the present embodiment, should
Steering angle is between 80 ° -120 °, and optimized angle is between 90-110 °.
In above-mentioned drive mechanism, wherein, planetary gearsets are arranged in first gear case A, and first gear case A is used
Dry and wet is lubricated, such as using lubricating grease etc., tooth sector is arranged in second gear case B, and second gear case B uses grease lubrication
And half dry type or wet type lubrication are designed as, wherein first gear case A and second gear case B separate by switching support 8, switching branch
Frame, axis 14 and loop bar 9 are provided with O-ring seal or lip seal circle, realize the sealing to second gear case B, it is to avoid lubrication
Oil flows into drive link 10, first gear case A or overflowed from axis 14.
Meanwhile, for avoid machine cavity internal cause from expanding with heat and contract with cold or height above sea level air pressure change caused by air pressure inside change so that
Grease is overflowed or moisture suction, and air equalizer opening should be opened up in housing 1 or balance air bag is set.
Preferably, in the present embodiment, output gear 12 and input gear 11 are helical tooth.
It is used to connect used gear optional spur gear, helical gear, herringbone bear, bevel gear in said gear group
Or helical gear.As a preferred scheme, ordinary gear engagement uses helical gear or herringbone bear in gear train, turns to tooth
Preferred tooth sector is helical gear in wheel group.By setting helical gear and helical gear, gear operation smoothness, reduction are improved
Gear operation noise, and improve gear bearing capacity.
The housing 1 that mounted in medium of bicycle motor shaft passes drive system is tubbiness, and the side of housing 1 is provided with connecting hole with being connected
Position, connecting hole and connection position be connected with axle transmission component, and the drive link 10 and input gear 11 of axle transmission component are from connection
Housing 1 is stretched into hole, realizes the engaged transmission with transfer.
The output end of axle transmission component is provided with a tooth sector, generally, the tooth sector is bevel gear, more preferably
, the gear is spiral bevel gear, and the gear is connected with the gear being fixed on vehicle hub, realizes the driving to vehicle.
In motion, the active force of people, gear output shaft or switching support 8 are delivered to by axis 14, further transmission
To the spiral bevel gear of the output gear 12 as tooth sector, spiral bevel gear drives the spiral bevel gear of another input gear 11, and then
The transmission direction of power is rotated by 90 ° by the drive link 10 of transmission shaft driven component, wherein tooth sector, realizes the steering transmission of power,
Driving drive link 10 rotates.The direction of transfer of power is rotated by 90 ° and then driven by another group of tooth sector by the output of drive link 10
Motor car wheel rotates, and realizes the driving operation of vehicle.Meanwhile, the motor being arranged on axis 14 also works asynchronously, and is subtracted using planet
Fast gear train, which slows down to increase, to be turned round, and delivers power to gear output shaft or switching support 8, output is cooperateed with manpower, car is driven jointly
Move ahead, improve Vehicle Speed and acceleration capacity, lifting is ridden impression.
Embodiment 2
Compared to the embodiment 1 shown in Fig. 1 and 3, with reference to Fig. 2, one group of ratchet mechanism is added in the present embodiment, specifically
For:
The leading portion of motor output 4 is provided with train of reduction gears, the gear train is planetary gearsets, including gear ring 6,
Sun gear, planetary gear 5, planet carrier 7, the gear ring 6 are fixed with the housing 1, and the sun gear is socketed in the motor output
In portion 4, the planetary gear 5 is arranged on the planet carrier 7, and the planetary gear 5 is provided with 5 groups, and 5 groups of planetary gears 5 are around described
The axis of gear ring 6 is into equidistant around arrangement, and the gear ring 6 is by the planetary gear 5 and the sun gear on the motor output 4
Connection, one end of planet carrier 7 is provided with output bracket 8-3, output bracket 8-3 and is provided with ratchet 8-2, and ratchet 8-2 is set
On the inside of output bracket 8-3 and coaxially connected with output bracket 8-3, coaxial be socketed with tramples support 8-1 in output bracket 8-3,
Support 8-1 connection tooth sectors are trampled, tramples and is provided with spline on the inside of support 8-1, spline is connected with the spline of axis 14
And realize Synchronous Transmission.
Wherein, planetary gearsets are arranged in first gear case A, and first gear case A is lubricated using dry and wet, such as is used
Lubricating grease etc., tooth sector group is arranged in second gear case B, and second gear case B is using grease lubrication and is designed as half dry type
Or wet type lubrication, wherein first gear case A and second gear case B are by ratchet mechanism separation, ratchet mechanism, axis 14 and loop bar
9 are provided with O-ring seal or lip seal circle, realize the sealing to second gear case B, it is to avoid lubricating oil inflow drive link 10,
First gear case A overflows from axis 14.
Meanwhile, for avoid machine cavity internal cause from expanding with heat and contract with cold or height above sea level air pressure change caused by air pressure inside change so that
Grease is overflowed or moisture suction, and air equalizer opening should be opened up in housing or balance air bag is set.
When riding, when people's pushes pedals, pedal force is by crank gearing axis 14 and synchronously branch is trampled in driving by spline
Frame 8-1 rotates, and now, is fixed on the tooth sector trampled on support 8-1 and is driven so that power passes to wheel backward.When
When motor speed is higher, due to ratchet 8-2 unidirectional lockings so that trample support 8-1 by ratchet 8-2 lockings and output bracket 8-
3 form overall, realize that motor output speeds trample speed sync with people, and then realize the synchronous power-assisted output of motor.Work as motor
When rotating speed is relatively low or is closed, now people tramples speed higher than motor output speeds, that is, tramples support 8-1 rotating speeds higher than output branch
Frame 8-3 rotating speed, because the unidirectional locking of ratchet is acted on, now tramples support 8-1 and is separated with output bracket 8-3, it is ensured that be dynamic
Power only output driving wheel backward, reduction is ridden load.
Compared to embodiment 1, the advantage of this programme is, due to the effect of ratchet, when motor speed is higher, motor can
Cooperate with output with manpower, it is relatively low or when stopping in motor speed, disconnected using ratchet, it is to avoid manpower is transmitted to motor,
Ensure that manpower is only used for driving moment, reduce riding resistance, improve riding speed.
Embodiment 3
In this embodiment, refering to Fig. 4, one group of parking brake device is added compared to Fig. 1-3, Fig. 4, the device is set
In housing 1, the parking brake device includes pushing meanss and lock tooth 16, and pushing meanss can be magnetic valve 15, magnetic valve 15
Magnetic core by push rod with lock tooth 16 be connected, magnetic valve 15 is connected with housing 1.When vehicle is ridden, point on controller, electricity
The energizing magnetic of magnet valve 15, adhesive magnetic core, while tooth 16 is locked in pull-up, realizes the unblock to gear, motor and crank can be normal
Rotation, drives vehicle, during car locking, extracts key, and controller power-off, the magnetic of magnetic valve 15 disappears, no longer adhesive magnetic core, locks tooth 16
It is released, and with inserting the wheel between cog of gear, realizes the locking to gear., can be in magnetic core to ensure the normal reset of lock tooth 16
Spring is set below, magnetic core and lock tooth 16 can be promoted to reset locking after the disappearance of the magnetic of magnetic valve 15.Now, motor and crank without
Method is rotated, and is realized to the locking of vehicle and antitheft.
As a more preferred embodiment, magnetic valve 15 can use two-way locking magnetic valve, in a pulsed fashion
Work, it is of short duration in locking or release to be powered, and locking is realized, reduce power consumption.
The latch-up structure that above-mentioned magnetic valve 15 and lock tooth 16 is constituted also can drive leading screw slide unit to realize by motor, lead to
Cross motor driving leading screw rotation so that slide unit is moved forward and backward, so as to drive the lock tooth 16 being arranged on slide unit to be locked and released
Put.
In embodiment illustrated in fig. 4, lock tooth 16 is arranged at output gear 12, and can engage lock with the realization of output gear 12
It is fixed.Certainly, parking brake device be may also be arranged at input gear 11, and parking system is realized by engaging locking with input gear 11
It is dynamic.
A kind of mode that embodiment locks only parking brake by magnetic valve 15 and lock tooth 16 to gear is illustrated, certainly
Also parking braking can be realized using other modes, such as by the way of brake shoe band-type brake, to power transmission shaft or axis during by powering off
Brake holding, realize parking braking;Or disc brake mode is used, parking system is realized to the holding of output gear 12 by brake block
It is dynamic.
Embodiment 4
Compared to embodiment 1, the difference of embodiment 4 is, gear train uses ordinary gear group, is specially:
Mounted in medium of bicycle motor shaft passes drive system, including:
Motor, gear train, axle transmission component and the housing 1 for accommodating said modules,
The motor is external rotor electric machine, including the stator 2 and rotor 3 being coaxially disposed, rotor 3 can freely turn with stator 2
Dynamic, the lateral ends of the rotor 3 are provided with the motor output 4 being connected with rotor 3;
The gear train includes gear train input and gearset output, and the gear train input and the motor are defeated
Go out portion 4 to connect, the gearset output is connected with axle transmission component.
More specifically, the motor output 4 is the interior motor output shaft for setting axis hole, the motor output shaft is socketed tooth
Wheel.
More specifically, the motor output 4 is the interior gear for setting axis hole and rotor integrative-structure.
More specifically, the stator 2 is provided centrally with axle mounting hole, the axis of belt sensor sequentially passes through the axle and installed
Hole and the axis hole.
More specifically, the axis of the belt sensor includes axis 14 and the sensor 13 being arranged on axis 14, it is described
Sensor 13 is torque sensor, velocity sensor or torque-speed compound sensor, and the axis body of axis 14 is partially passed through entirely
Motor, its front end outer side is provided with axis body spline, and sensor 13 is socketed in stator 2, and the axis 14 and the motor are defeated
Go out portion 4 coaxially connected;
More specifically, the axle transmission component includes loop bar 9 and drive link 10, the drive link 10 is co-axially located at described
In loop bar 9, and can freely it be rotated relative to the loop bar 9.
More specifically, the gear train is arranged on the leading portion of motor output 4;
Gear train is constituted using multiple double-layer gears, forms gear-box, is engaged between gear and gear and is connected and mutually pass
Dynamic, wherein the gear of gear train input can be coaxially connected with the gear of motor output 4, and the gear of gearset output is set
In the optional position of gear-box, tooth sector can be directly used, such as, spiral bevel gear, imperial crown gear etc. utilize tooth sector
Engaged transmission drive link 10, and then driving moment operating.At this moment the gear of gearset output is output gear 12,
More specifically, the gearset output is connected with drive link 10 by the tooth sector.
More specifically, the tooth sector includes the output gear 12 of the gearset output and connects drive link 10
Input gear 11, the output gear 12 is meshed with the input gear 11, the gearset output and the drive link
10 are directly connected to by the transmission of the tooth sector.
The housing 1 that mounted in medium of bicycle motor shaft passes drive system is tubbiness, and the side of housing 1 is provided with connecting hole with being connected
Position, connecting hole and connection position be connected with axle transmission component, and the drive link 10 and input gear 11 of axle transmission component are from connection
Housing 1 is stretched into hole, realizes the engaged transmission with transfer.
The output end of drive link 10 is provided with a tooth sector, generally, the tooth sector is bevel gear, more preferably,
The gear is spiral bevel gear, and the gear is connected with the gear being fixed on vehicle hub, realizes the driving to vehicle.
Embodiment 5
Above-described embodiment is different from, when the gearset output of gear-box uses gear train output shaft, the gear train is defeated
Shaft can be connected by attachment means, and the attachment means are universal knot or Hooks coupling universal coupling, and gear train output shaft passes through universal knot
Or Hooks coupling universal coupling transmission drive link 10, realize power output.
To improve attachment means smooth running degree, and resistance is reduced, attachment means can use binodal structure, such as using double sections
Universal knot or Hooks coupling universal coupling.The direct commutation transmission of power is realized using universal knot or Hooks coupling universal coupling.Drive link 10
Can by Hooks coupling universal coupling to wheel export power.
Pass through above-described embodiment, it can be seen that the mounted in medium of bicycle motor shaft disclosed in the present invention passes having for drive system
Beneficial effect is:
1) by setting shaft transmission system to substitute traditional linked transmission, weight is reduced, reduces volume and improves transmission efficiency.
2) by setting the built-in motor of coaxial design and being connected in housing side opening and axle, drive system is improved
Integrated level simultaneously optimizes appearance design.
3) by designing planetary reduction gear wheel group and bevel gear, improve output torque and realize the steering of output shaft.
4) preferably helical tooth, helical teeth design, improves transmission system carrying smoothness, reduces running noises.
Embodiment described above only expresses embodiments of the present invention, and it describes more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of mounted in medium of bicycle motor shaft passes drive system, including:
Motor, gear train, axle transmission component and the housing for accommodating said modules,
Wherein,
The motor is external rotor electric machine, including the stator and rotor being coaxially disposed, the lateral ends of the rotor are set
State the connected motor output of rotor;
The gear train includes gear train input and gearset output, the gear train input and the motor output
Connection, the gearset output is connected with axle transmission component;
The housing is tubbiness, and the housing side is provided with connecting hole and connection position, the connecting hole and the connection position with
The axle transmission component is connected.
2. mounted in medium of bicycle motor shaft as claimed in claim 1 passes drive system, it is characterised in that
The motor output is the interior motor output shaft for setting axis hole, and the motor output shaft is socketed gear;
Or, the motor output is the interior gear for setting axis hole and rotor integrative-structure;
The stator center is provided with axle mounting hole, and the axis of belt sensor sequentially passes through the axle mounting hole and the axis hole.
3. mounted in medium of bicycle motor shaft as claimed in claim 2 passes drive system, it is characterised in that in the belt sensor
Axle includes axis and the sensor being arranged on axis, and the sensor is torque sensor, velocity sensor or torque-speed
Compound sensor, the axis body of axis partially passes through the whole motor, and axis body part front end outer side is provided with axis body spline,
The sensor is socketed in the stator, and the axis and the motor output are coaxially connected.
4. mounted in medium of bicycle motor shaft as claimed in claim 3 passes drive system, it is characterised in that the axle transmission component bag
Loop bar and drive link are included, the drive link is co-axially located in the loop bar, and can freely be rotated relative to the loop bar.
5. mounted in medium of bicycle motor shaft as claimed in claim 4 passes drive system, it is characterised in that the gear train is arranged on
The motor output leading portion, the gear train is planetary gearsets or common ratio wheel group;
When the gear train be planetary gearsets when, the gear train be planetary gearsets, including gear ring, sun gear, planetary gear,
Planet carrier, the gear ring is fixed with the housing, and the sun gear is socketed on the motor output, and the planetary gear is set
On the planet carrier, the planetary gear be provided with it is multigroup, multigroup planetary gear around the gear ring axis into equidistant ring
Around arrangement, the gear ring is connected by the planetary gear with the sun gear on the motor output, on the outside of the planet carrier
One end is provided with gearset output, and the gear train input is sun gear, and the gearset output exports for gear train
Axle or switching support, the gear train output shaft connect tooth sector group;
When the gear train is common ratio wheel group, the gear train is formed by connecting by multiple double-layer gears and is intermeshed biography
Dynamic, the gear of the gear and the motor output of the gear train input is coaxially connected, the tooth of the gearset output
Wheel directly uses tooth sector, and the gear of the gear train input and the gear of the gearset output are coaxial or non-coaxial
Connection.
6. mounted in medium of bicycle motor shaft as claimed in claim 5 passes drive system, it is characterised in that the gearset output
Be connected with described drive link one end by the tooth sector group or attachment means, the other end of the drive link be provided with
The tooth sector for the gear connection being fixed on vehicle hub, the gear in the tooth sector group is bevel gear, helical gear,
Helical gear, straight-tooth or imperial crown gear, the attachment means are Hooks coupling universal coupling or universal joint.
7. mounted in medium of bicycle motor shaft as claimed in claim 6 passes drive system, it is characterised in that the tooth sector group bag
Include the output gear for connecting the gearset output and the input gear for connecting the drive link, the output gear with it is described
Input gear is meshed, and the gearset output is directly connected to the drive link by the transmission of the tooth sector group.
8. mounted in medium of bicycle motor shaft as claimed in claim 5 passes drive system, it is characterised in that the planetary gearsets are set
Put in first gear case, the first gear case is lubricated using dry and wet, the tooth sector group is arranged in second gear case,
Second gear case is using grease lubrication and is designed as half dry type or wet type lubrication, the first gear case and the second gear case
Separate by the switching support, the O-shaped close of the sealing second gear case is provided with the switching support, axis and loop bar
Seal or lip seal circle.
9. mounted in medium of bicycle motor shaft as claimed in claim 5 passes drive system, it is characterised in that on the outside of the planet carrier
One end, which is provided with output bracket, output bracket, is provided with ratchet, the ratchet be arranged on the inside of output bracket and with it is described defeated
Go out support coaxially connected, coaxial be socketed with tramples support in the output bracket, the support of trampling connects the tooth sector
Group, described trample is provided with spline on the inside of support, and the spline is connected and realized synchronous with the axis body spline of the axis
Transmission.
10. mounted in medium of bicycle motor shaft as claimed in claim 1 passes drive system, it is characterised in that
The mounted in medium of bicycle motor shaft, which passes drive system, also includes parking brake device, and the parking brake device is arranged on shell
In vivo, the parking brake device includes pushing meanss and lock tooth, and the pushing meanss are connected by push rod with the lock tooth, institute
State pushing meanss to be connected with the housing, the pushing meanss are magnetic valve or are motor-driven leading screw slide unit,
When the lock tooth is arranged at output gear, locking is engaged with the output gear;
When the lock tooth is arranged at input gear, locking is engaged with the input gear.
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CN201710555624.3A CN107176259A (en) | 2017-07-10 | 2017-07-10 | A kind of mounted in medium of bicycle motor shaft passes drive system |
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CN201710555624.3A CN107176259A (en) | 2017-07-10 | 2017-07-10 | A kind of mounted in medium of bicycle motor shaft passes drive system |
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