CN203800745U - Electric bicycle wheel hub motor device - Google Patents
Electric bicycle wheel hub motor device Download PDFInfo
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- CN203800745U CN203800745U CN201420175852.XU CN201420175852U CN203800745U CN 203800745 U CN203800745 U CN 203800745U CN 201420175852 U CN201420175852 U CN 201420175852U CN 203800745 U CN203800745 U CN 203800745U
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Abstract
The utility model discloses an electric bicycle wheel hub motor device comprising a horizontally-arranged main shaft, a wheel hub shell which is rotatably installed outside main shaft, a stator and a rotor which are arranged in the wheel hub shell, and a gear reduction mechanism. The stator is fixed on the main shaft. The gear reduction mechanism comprises a rotor gear which is fixed with the rotor and coaxially sleeves the main shaft, a planet carrier fixed on the main shaft, a planet shaft which rotatably passes through the planet carrier, a left planetary gear and a right planetary gear which are fixed on the planet shaft, and a sun gear which is fixed with the wheel hub shell and coaxially sleeve the main shaft. The left planetary gear is engaged with the rotor gear. The right planetary gear is engaged with the sun gear. The wheel hub motor of the utility model has the advantage of large output torque and has the internal variable speed function.
Description
Technical field
The present invention relates to a kind of wheel hub motor, be applicable to electric motor car particularly in electric bicycle.
Background technology
Existing common wheel hub motor is generally by the module compositions such as main shaft, wound stator, rotor, sun gear, deceleration assembly, hub shell, planetary gear speed reducing mechanism and one-way clutch, the Chinese utility model patent that its detailed structure can be ZL201220268825.8 with reference to its structure patent No..In electrical power when work,, wound stator rotates with the power source rotor driven that rotor produces, and epitrochanterian rotor gear drives planetary reduction systems and one-way clutch to rotate, and through being fixed on ring gear on wheel hub directly to wheel hub transmitting torque, wheel hub is rotated.There is the shortcoming smaller, output torque is little of slowing down in the planetary gear speed reducing mechanism that this wheel hub motor adopts.
And traditional wheel hub motor is because of the restriction of its function and structure, can only be used in conjunction with external speed changer, outward appearance is complicated, and not attractive in appearance, inner space is reasonably utilized, and can not implant internal speed-changing system better to drive electric bicycle.
Summary of the invention
The present invention seeks to: for the problems referred to above, provide a kind of output torque large and there is the wheel hub motor of many grades of internal speed-changing functions.
Technical scheme of the present invention is: described electric bicycle hub motor device, the main shaft that comprises horizontal arrangement, be installed in rotation on the wheel hub shell outside this main shaft, be located at described stator and rotor of taking turns in hub shell, and gear reduction, wherein stator is fixed on main shaft, described gear reduction structure comprises fixes with described rotor and coaxial sleeve is located at the rotor gear outside described main shaft, be fixed on and describedly take turns on hub shell and be enclosed within the planet carrier outside main shaft, be located in rotationally the planet axis on planet carrier, be fixed on left planetary gear and right planetary gear in described planet axis, and fixed cover is located at the central gear on described main shaft, wherein left planetary gear and rotor gear engagement, right planetary gear and central gear engagement.
As preferably, described central gear is an one-way clutch, this one-way clutch comprise clutch inner ring and with the clutch outer of this clutch inner ring one-way locking, wherein, clutch inner ring and described main shaft are fixed, and are provided with the external toothing with described right planetary gear engagement in clutch outer.
As preferably, described external toothing and described clutch outer are structure as a whole.
As preferably, in described planet axis, be provided with at least two right planetary gears, these right planetary diameters are different; In described clutch outer, be provided with and described each right planetary gear a plurality of external toothings of corresponding engagement one by one, these external toothings can circumferentially be set in clutch outer rotationally, and external toothing and clutch outer axial restraint, also arrange the retaining mechanism the two circumferentially can be fixed together between clutch outer and external toothing.
As preferably, it is outer and a chain wheel is installed that the right-hand member of described clutch outer stretches out the described hub shell of taking turns, and is provided with the second one-way clutch between described rotor gear and main shaft.
As preferably, described retaining mechanism comprises can be set in the sliding sleeve on described main shaft axially slidably, and for slide over described in driving on main shaft, endwisely slip and can be by sliding sleeve axial location the slide-positioning device on main shaft, described sliding sleeve is contained in clutch outer, in described clutch outer, position corresponding to each external toothing all offers radial direction through hole, described radial direction through hole place is provided with the spring leaf being stuck in clutch outer, on described spring leaf, be fixed and be positioned at the roller in this spring leaf outside, the disposed inboard of described spring leaf has and is arranged in ball described radial direction through hole and that radially through hole moves radially, on described external toothing, be shaped with the agree with groove corresponding with described roller, on described sliding sleeve, forming the described ball of can conflicting while endwisely slipping on sliding over main shaft outwards moves along described radial direction through hole, and then oppress described spring leaf and make it that deformation occur, thereby making to be fixed on roller on spring leaf agrees with in groove described in moving to, and the bulge loop that described clutch gear ring and clutch outer are circumferentially fixed together.
As preferably, described slide-positioning device comprise be enclosed within on main shaft and be clipped in main shaft and sliding sleeve between stage clip, main shaft on offer central shaft hole, be arranged in described central shaft hole and the thimble connected with sliding sleeve and contacting with described thimble coordinates for stirring thimble at the axially movable plectrum of described central shaft hole, described plectrum is in transmission connection by the gear change hand lever on shift cable and electric bicycle handlebar.
As preferably, described slide-positioning device is an electromagnetically operated valve.
As preferably, in described planet axis, be also fixed with its diameter and be less than each right planetary secondary planetary gear, in described clutch outer, be arranged with the secondary external toothing with described secondary planetary gear engagement, between described secondary external toothing and clutch outer, by the 3rd one-way clutch, be connected.
As preferably, between described sliding sleeve and described main shaft, be provided with spring bearing, described spring bearing has relatively turnable bearing inner race and bearing outer ring, and described sliding sleeve can be set on bearing outer ring axially slidably, and bearing inner race is fixed on described main shaft.
Advantage of the present invention is:
1, this hub motor device of the present invention, and unlike conventional art, be provided with and be fixed on the ring gear of wheel on hub shell, but directly planet carrier is fixed on wheel hub shell, rotation by planet carrier drives wheel hub to rotate, with this, design a set of single secondary gear deceleration transmission system, realized the output function of big retarding ratio, high pulling torque, improved the operating efficiency of motor, the magnetic material use amount that can reduce direct current machine simultaneously, has reduced cost.
2, this hub motor device of the present invention, when electrical power is worked, the running that bicyclist can also be motor by treadled cycle pedal provides power-assisted, and the size of this manual power assisting can regulate simultaneously.
3, this hub motor device of the present invention, while making bicycle in riding condition in motor power-off, bicyclist can also drive wheel hub rotation to advance by treadled cycle pedal, and the size of this manual power assisting can regulate simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation (broken section) of electric bicycle hub motor device in the embodiment of the present invention one;
Fig. 2 is the structural representation (broken section) of electric bicycle hub motor device in the embodiment of the present invention two;
Fig. 3 is the structural representation (broken section) of electric bicycle hub motor device in the embodiment of the present invention three;
Fig. 4 is the structural representation (broken section) of electric bicycle hub motor device in the embodiment of the present invention four;
Fig. 5 is the structural representation (broken section) of electric bicycle hub motor device in the embodiment of the present invention five;
Fig. 6 is one of partial structurtes schematic diagram of electric bicycle hub motor device in embodiment five;
Fig. 7 be electric bicycle hub motor device in embodiment five partial structurtes schematic diagram two;
Wherein: 1-main shaft, 2-takes turns hub shell, 2a-outer cover body, 2b-shell end cap, 3-stator, 4-rotor, 5-rotor gear, 6-planet carrier, 7-planet axis, the left planetary gear of 8-, the right planetary gear of 9-, 10-central gear, 10a-clutch inner ring, 10b-clutch outer, 10c-external toothing, the secondary external toothing of 10d-, 11-the second one-way clutch, 12-chain wheel, 13-the 3rd one-way clutch, 13-pivoted housing gear, 14-sliding sleeve, 14a-bulge loop, 15-roller, 16-thimble, 17-stage clip, 18-central shaft hole, the outer speed changer of 19-, the secondary planetary gear of 20-, 22-spring leaf.
Embodiment
Embodiment mono-:
Fig. 1 has shown a specific embodiment of this electric bicycle hub motor device of the present invention, it comprises the main shaft 1 of horizontal arrangement, on this main shaft 1, by bearing (not marking in figure), being provided with can be around the wheel hub shell 2 of this main shaft rotation, and the described hub shell 2 of taking turns consists of jointly the outer cover body 2a interfixing and shell end cap 2b.Described wheel in hub shell 2 is provided with stator 3, rotor 4 and gear reduction, and wherein stator is fixed on main shaft 1, the external rotor internal stator structure that this example adopts.
The present embodiment key improvements point is that described gear reduction is completely different, specific as follows from the structure of conventional gears reducing gear:
Gear reduction in this example mainly consists of rotor gear 5, planet carrier 6, planet axis 7, left planetary gear 8, right planetary gear 9 and central gear 10 these parts.Wherein rotor gear 5 rotatably coaxial sleeve be located on described main shaft 1, and rotor gear 5 is fixing with rotor 4, is also provided with bearing (not marking in figure) and supports between rotor gear 5 and main shaft 1.What planet carrier 6 can circumferentially rotate is set in outside main shaft 1, and planet carrier 6 is fixed with wheel hub shell 2 inwalls.Planet axis 7 is located on planet carrier 6 rotationally by bearing (in figure mark), and planet axis 7 is arranged in parallel with described main shaft 1, and described planet axis 7 can be one or more, and this example is three (in figure only one visual).The quantity of left planetary gear 8 and right planetary gear 9 is identical with the quantity of planet axis 7, and the diameter of left planetary gear 8 is greater than right planetary gear 9, and left planetary gear 8 and right planetary gear 9 are all fixed in planet axis 7.Central gear 10 is fixed on described main shaft 1.Left planetary gear 8 and rotor gear 5 engagements, right planetary gear 9 and central gear 10 engagements.If think further to improve the speed reducing ratio of this gear reduction, we can also set up corresponding speed reduction gearing between rotor gear 5 and left planetary gear 8 again.
During work, electrical power makes rotor 4 rotate counterclockwise in the right apparent direction of Fig. 1, rotor 4 rotor driven gears 5 rotate counterclockwise around main shaft 1, and then the rotation torque of motor is passed to planet carrier 6, planet carrier 6 is clockwise rotated around main shaft 1 together with wheel hub shell 2, and then driving electric bicycle moves ahead, now right planetary gear 9 revolves round the sun clockwise around central gear 10.
In the present embodiment, described central gear 10 is one-way clutch, this one-way clutch is existing conventional structure, it comprise clutch inner ring 10a and with the clutch outer 10b of this clutch inner ring one-way locking, wherein, clutch inner ring 10a is by described locking key and main shaft 1 fixing (and clutch outer 10b is not directly connected with main shaft 1), on clutch outer 10b, be provided with the external toothing 10c meshing with described right planetary gear 9, the 10c of external toothing described in this example and described clutch outer 10b are structure as a whole.Central gear 10 adopts the benefit of above-mentioned this structure to be: in the situation that no power or foot-operated actuating speed are greater than motor actuating speed, when electric bicycle advances, clutch outer 10b will rotate freely around clutch inner ring 10a, substantially can not rotate by rotor driven 4, and then reduced the advance resistance of electric bicycle.
Embodiment bis-:
Fig. 2 has shown another specific embodiment of this electric bicycle hub motor device of the present invention, and this wheel hub electric machine of the present embodiment improves on the architecture basics of embodiment mono-, and its main improvements are:
This hub motor device has changed the structure of wheel hub shell 2 right-hand member axis holes on the basis of Fig. 1, between wheel hub shell 2 and main shaft 1, installed one for assembling the outer speed changer 19(conventional structure of multi-speed sprocket), thus big retarding become than outer shift wheel hub motor.When motor no power, regulate outer speed changer 19 can realize traditional multi-change speed function of multi-speed bicycle.
Embodiment tri-:
Fig. 3 has shown the 3rd specific embodiment of this electric bicycle hub motor device of the present invention, and this hub motor device of this embodiment improves on the architecture basics of embodiment mono-, its main improvements be following some:
In the present embodiment, be provided with altogether two right planetary gears 9 in described planet axis 7, the diameter of these right planetary gears 9 is different, and in Fig. 3, diameter increases progressively successively from left to right.And on described clutch outer 10b, be provided with and two described right planetary gears 9, two external toothing 10c of corresponding engagement one by one.These external toothings 10c be integral type structure with clutch outer 10b unlike embodiment mono-, but it is upper to be circumferentially set in rotationally clutch outer 10b, and external toothing 10c and clutch outer 10b axial restraint.And, the retaining mechanism the two circumferentially can be fixed together is also set between clutch outer 10b and external toothing 10c.It should be noted that, the number of described external toothing 10c and right planetary gear 9 is not limited to two, also can be three, four, five ...
After this wheel hub motor is arranged in bicycle rear, in order to allow bicycle there is the power-off function of riding, this example has also adopted following structure: it is outer and a chain wheel 12 is installed that the right-hand member of described clutch outer 10b stretches out the described hub shell 2 of taking turns, and is provided with the second one-way clutch 11 between described rotor gear 5 and main shaft 1.This second one-way clutch 11 also adopts conventional structure, it comprise inner ring and with the outer ring of this inner ring one-way locking, the inner ring of the second one-way clutch and main shaft 1 are fixing, the outer ring of the second one-way clutch and rotor gear 5 is fixing, and rotor gear 5 just can only be around main shaft 1 one-directional rotation and can not Double-directional rotary like this.
The described retaining mechanism with above-mentioned functions can adopt the known various structures of mechanical field, in the present embodiment, described retaining mechanism has adopted following structure: shown in Fig. 3, Fig. 6 and Fig. 7, it comprises can be set in described main shaft 1 axially slidably) on sliding sleeve 14 and for drive described sliding sleeve 14 to endwisely slip on main shaft 1 and can be by sliding sleeve axial location the slide-positioning device on main shaft.Described sliding sleeve 14 is contained in clutch outer 10b.On described clutch outer 10b, all offer some radial direction through hole corresponding to the position of each external toothing 10c, described radial direction through hole place is provided with the spring leaf 22 being stuck on clutch outer 10b.On described spring leaf 22, be fixed and be positioned at the roller 15 in this spring leaf outside, the disposed inboard of spring leaf 22 has and is arranged in ball 21 described radial direction through hole and that radially through hole moves radially.On described external toothing 10c, be shaped with corresponding with the described roller 15 groove (not shown) of agreeing with.Thereby on described sliding sleeve 14, forming the described ball 21 of can conflicting while endwisely slipping on sliding over main shaft 1 outwards moves and then oppresses described spring leaf 22 along described radial direction through hole and make it that deformation occur to make to be fixed on that roller 15 on spring leaf 22 agrees with described in moving in groove and the bulge loop 14a that described external toothing and clutch outer 10b are circumferentially fixed together.
The described slide-positioning device with above-mentioned functions can adopt the known various structures of mechanical field, such as electromagnetically operated valve, and in the present embodiment, described slide-positioning device has adopted following structure: it comprise be enclosed within on main shaft 1 and be clipped in main shaft 1 and sliding sleeve 14 between stage clip 17, the central shaft hole 18 of offering on main shaft 1, be arranged in described central shaft hole 18 and the thimble 16 being connected with sliding sleeve 14, and contact with described thimble to coordinate and be used for stirring thimble at the axially movable plectrum of described central shaft hole 18 (not shown in FIG.), described plectrum is in transmission connection by shift cable (not shown in FIG.) and the gear change hand lever (not shown in FIG.) on electric bicycle handlebar.
When electrical power drives wheel hub to clockwise rotate and when bicycle is moved ahead, bicyclist can transfer the gear change hand lever on handlebar, by shift cable, drive plectrum to move, plectrum promotes thimble 16 again and is moved to the left in Fig. 1 along the central shaft hole 18 of main shaft 1, thereby promote sliding sleeve 14, along main shaft 1, quantitatively moves; Or under the elastic force effect of stage clip 17, promotion sliding sleeve 14 and thimble 16 move right in Fig. 1 along the central shaft hole 18 of main shaft 1.Like this by sliding sleeve 14 and on the quantitative movement of bulge loop 14a in a plurality of positions ball 21 outward radials of arbitrary position on clutch outer 10b (bicyclist can select voluntarily by the control to gear change hand lever) are moved, and then pressuring spring sheet 22 makes spring leaf generation deformation.Spring leaf 22 occurs to have the trend that drives roller fixed thereon 15 outwards to move after deformation, once clutch outer 10b turns to behind corresponding angle position, roller 15 will partly enter agreeing with in groove of external toothing under the deformation elastic force effect of spring leaf 22, and another part is still in clutch outer 10b.So just make corresponding external toothing and clutch outer 10b Peripheric locking be fixed together, certainly we agree with the grooved of groove described in can also arranging especially, with allow external toothing and clutch outer 10b can only one-way locking together with, the similar free wheeling sprag clutch of its structural principle, does not repeat them here.Those balls 21 that do not contact with bulge loop 14a keep original position and can outwards not move, and corresponding roller 15 yet just can not stretch into and agree with in groove, and corresponding external toothing also can freely rotate with regard to not being locked.With this, select the external toothing 10c of different-diameter and clutch outer 10b circumferentially to fix, and then change the speed reducing ratio of described gear reduction structure, also change the output torque of 4 pairs of wheel hub shells 2 of rotor, thereby make this hub motor device there are many grades of (this example is third gear) internal speed-changing functions.And now bicyclist can also provide power-assisted to the running of motor by manpower, take and help motor to provide extra moment as taking turns the rotation of hub shell 2, specifically be achieved in that the pedal of bicyclist's treadled cycle now and drive described chain wheel 12 to turn clockwise in the right apparent direction of Fig. 1, chain wheel drive again clutch outer 10b and with this clutch outer 10b circumferentially fixing that external toothing 10c around clutch inner ring 10a, turn clockwise.External toothing 10c can apply the clockwise moment of torsion except rotor to wheel hub shell 2 by that the right planetary gear 9 being meshed with it.Again because the diameter of each external toothing 10c is not identical, so when bicyclist selects clutch outer 10b and different external toothing 10c circumferentially fixedly time, bicyclist is also just different to the manual power assisting size of this wheel hub motor, thereby has realized many gears assist function of this wheel hub motor.
When this wheel hub motor power-off, make bicycle when pattern is ridden in power-off, same reason, bicyclist also can transfer the gear change hand lever on handlebar, and some external toothing 10c and clutch outer 10b Peripheric locking are fixed.The pedal of bicyclist's treadled cycle and drive described chain wheel 12 to turn clockwise in the right apparent direction of Fig. 1 now, chain wheel drive again clutch outer 10b and with this clutch outer 10b circumferentially fixing that external toothing 10c turn clockwise.Because rotor gear 4 can not clockwise rotate around main shaft 1 under the effect of the second one-way clutch 11, external toothing 10c will apply clockwise turning moment to planet carrier 6, and then driven wheel hub shell 2 clockwise rotates, and realizes moving ahead of bicycle.If it is constant that bicyclist tramples the rotating speed of pedal, because the diameter of each external toothing 10c is different, so when bicyclist selects clutch outer 10b and different external toothing 10c circumferentially fixedly time, the rotating speed of wheel hub shell 2 is also just different, has also realized many gears internal speed-changing function of this wheel hub motor.In general, if bicyclist pursues the front line speed of bicycle, can select that external toothing 10c(of diameter maximum to be arranged in the rightest left side of Fig. 2) with the circumferential fixing gear of clutch outer 10b; If bicyclist pursues the climbing capacity of bicycle, can select that external toothing 10c(of diameter minimum to be arranged in Fig. 2 rightmost side) with the circumferential fixing gear of clutch outer 10b.During motor no power, the second clutch 11 between rotor gear 4 and main shaft 1 is thrown off, can art skating.
In addition, the present embodiment is also fixed with the secondary planetary gear 20 that a diameter is less than each right planetary gear 9 in described planet axis 7, in Fig. 4, secondary planetary gear 20 is positioned at the left side of all right planetary gears 9, the right side of described left planetary gear 8, on described clutch outer 10b, also cover has a secondary external toothing 10d who meshes with described secondary planetary gear 20, between described secondary external toothing 10d and clutch outer 10b, by the 3rd one-way clutch 13, is connected.The same conventional structure that adopts of the 3rd one-way clutch 13, it comprise inner ring and with the outer ring of this inner ring one-way locking, the inner ring of the 3rd one-way clutch and described clutch outer 10d fix or are connected as a single entity, and the outer ring of the 3rd one-way clutch and secondary external toothing 10d fix or be connected as a single entity.
For fear of the ball 21 on clutch inner ring 10a and pivoted housing when rotating, between ball 21 and sliding sleeve 14 because directly contacting and the high-speed slide friction of caused by relative motion, this example has also adopted following structure: between described sliding sleeve 14 and main shaft 1, be provided with spring bearing (not shown in FIG.), described spring bearing adopts existing conventional structure, it has relatively turnable bearing inner race and bearing outer ring, described sliding sleeve 14 is fixed on described bearing outer ring, and described bearing inner race can be set on described main shaft 1 axially slidably.Certainly, we also can be set in described sliding sleeve 14 on bearing outer ring axially slidably, and bearing inner race is fixed on described main shaft 1, can reach above-mentioned effect equally.
Embodiment tetra-:
Fig. 4 has shown the 4th specific embodiment of this electric bicycle hub motor device of the present invention, and this electric bicycle hub motor device of the present embodiment is changed on the architecture basics of embodiment tri-, and it is mainly changed part and is:
The right-hand member of clutch outer 10b does not stretch out wheel hub shell 2 outsides, and chain wheel 12 is directly fixedly connected on wheel hub shell 2, and the second one-way clutch 11 in embodiment tri-is not installed between rotor gear 5 and main shaft 1.
Embodiment five:
Fig. 5 has shown the 5th specific embodiment of this electric bicycle hub motor device of the present invention, and this electric bicycle hub motor device of the present embodiment is compared with embodiment tetra-, and difference is only not install on the motor in this example chain wheel 12.
In above-described embodiment one to five, said " radially " and " axially ", in case of no particular description, all take main shaft 1 as reference.In general, wheel hub motor in embodiment mono-and embodiment tetra-is many to be used as electric bicycle forerunner wheel hub motor, and wheel hub motor in embodiment bis-, embodiment tri-and embodiment five is many, as electric bicycle rear-guard wheel hub motor, uses.And the planet carrier in above-described embodiment one to five 6 is structure as a whole with profile shell 2, the two is one-body molded.
Certainly, above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow people can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformation or modification that according to the present invention, the Spirit Essence of main technical schemes is done, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. an electric bicycle hub motor device, comprise horizontal arrangement main shaft (1), be installed in rotation on the outer wheel hub shell (2) of this main shaft (1), be located at described stator (3) and rotor (4) and gear reduction of taking turns in hub shell (2), wherein stator (3) is fixed on main shaft (1)
It is characterized in that: described gear reduction structure comprises that and coaxial sleeve fixing with described rotor (4) is located at the outer rotor gear (5) of described main shaft (1), be fixed on the described hub shell (2) of taking turns and go up and be enclosed within the outer planet carrier (6) of main shaft (1), be located in rotationally the planet axis (7) on planet carrier (6), be fixed on left planetary gear (8) and right planetary gear (9) in described planet axis (7), and fixed cover is located at the central gear (10) on described main shaft (1), wherein, left planetary gear (8) and rotor gear (5) engagement, right planetary gear (9) and central gear (10) engagement.
2. electric bicycle hub motor device according to claim 1, it is characterized in that: described central gear (10) is an one-way clutch, this one-way clutch comprise clutch inner ring (10a) and with the clutch outer (10b) of this clutch inner ring one-way locking, described clutch inner ring (10a) is fixing with described main shaft (1), is provided with the external toothing (10c) with described right planetary gear (9) engagement in described clutch outer (10b).
3. electric bicycle hub motor device according to claim 2, is characterized in that: described external toothing (10c) is structure as a whole with described clutch outer (10b).
4. electric bicycle hub motor device according to claim 2, is characterized in that: in described planet axis (7), be provided with at least two right planetary gears (9), the diameter of these right planetary gears (9) is different; In described clutch outer (10b), be provided with and described each right planetary gear (9) a plurality of external toothings (10c) of corresponding engagement one by one, these external toothings (10c) can circumferentially be set in clutch outer (10b) rotationally, and external toothing (10c) and clutch outer (10b) axial restraint, the retaining mechanism that also setting can circumferentially be fixed together the two between clutch outer (10b) and external toothing (10c).
5. electric bicycle hub motor device according to claim 4, it is characterized in that: it is outer and a chain wheel (12) is installed that the right-hand member of described clutch outer (10b) stretches out the described hub shell (2) of taking turns, and between described rotor gear (5) and main shaft (1), is provided with the second one-way clutch (11).
6. electric bicycle hub motor device according to claim 4, it is characterized in that: described retaining mechanism comprises the sliding sleeve (14) that can be set in axially slidably on described main shaft (1), and for drive described sliding sleeve (14) to endwisely slip on main shaft (1) and can be by sliding sleeve axial location the slide-positioning device on main shaft, described sliding sleeve (14) is contained in clutch outer (10b), in described clutch outer (10b), position corresponding to each external toothing (10c) all offers radial direction through hole, described radial direction through hole place is provided with the spring leaf (22) being stuck in clutch outer (10b), on described spring leaf (22), be fixed and be positioned at the roller (15) in this spring leaf outside, the disposed inboard of described spring leaf (22) has and is arranged in ball (21) described radial direction through hole and that radially through hole moves radially, on described external toothing (10c), be shaped with the agree with groove corresponding with described roller (15), on described sliding sleeve (14), forming the described ball (21) of can conflicting while endwisely slipping on sliding over main shaft (1) outwards moves along described radial direction through hole, and then oppress described spring leaf (22) and make it that deformation occur, thereby making to be fixed on roller (15) on spring leaf (22) agrees with in groove described in moving to, and the bulge loop (14a) that described clutch gear ring (10c) and clutch outer (10b) are circumferentially fixed together.
7. electric bicycle hub motor device according to claim 6, it is characterized in that: described slide-positioning device comprises that to be enclosed within main shaft (1) upper and be clipped in the central shaft hole (18) offered on stage clip (17) between main shaft (1) and sliding sleeve (14), main shaft (1), be arranged in described central shaft hole (18) and the thimble connected with sliding sleeve (14) and contact cooperation with described thimble and be used for stirring thimble at the axially movable plectrum of described central shaft hole (18), and described plectrum is in transmission connection by the gear change hand lever on shift cable and electric bicycle handlebar.
8. electric bicycle hub motor device according to claim 6, is characterized in that: described slide-positioning device is electromagnetically operated valve.
9. according to the electric bicycle hub motor device described in claim 4 or 6 or 7 or 8, it is characterized in that: in described planet axis (7), be also fixed with the secondary planetary gear (20) that its diameter is less than each right planetary gear (8), in described clutch outer (10b), be arranged with the secondary external toothing (10d) with described secondary planetary gear (20) engagement, between described secondary external toothing (10d) and clutch outer (10b), by the 3rd one-way clutch (13), be connected.
10. according to the electric bicycle hub motor device described in claim 6 or 7 or 8, it is characterized in that: between described sliding sleeve (14) and described main shaft (1), be provided with spring bearing, described spring bearing has relatively turnable bearing inner race and bearing outer ring, described sliding sleeve (14) can be set on bearing outer ring axially slidably, and bearing inner race is fixed on described main shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175852.XU CN203800745U (en) | 2014-04-11 | 2014-04-11 | Electric bicycle wheel hub motor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175852.XU CN203800745U (en) | 2014-04-11 | 2014-04-11 | Electric bicycle wheel hub motor device |
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| CN203800745U true CN203800745U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420175852.XU Withdrawn - After Issue CN203800745U (en) | 2014-04-11 | 2014-04-11 | Electric bicycle wheel hub motor device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944305A (en) * | 2014-04-11 | 2014-07-23 | 苏州八方电机科技有限公司 | Hub motor device of electric bike |
| CN107685828A (en) * | 2017-09-19 | 2018-02-13 | 八方电气(苏州)股份有限公司 | Electric bicycle infinitely variable speed transmission |
-
2014
- 2014-04-11 CN CN201420175852.XU patent/CN203800745U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944305A (en) * | 2014-04-11 | 2014-07-23 | 苏州八方电机科技有限公司 | Hub motor device of electric bike |
| WO2015154400A1 (en) * | 2014-04-11 | 2015-10-15 | 苏州八方电机科技有限公司 | Electric bicycle wheel hub motor device |
| CN103944305B (en) * | 2014-04-11 | 2016-04-13 | 苏州八方电机科技有限公司 | Electric bicycle hub motor device |
| CN107685828A (en) * | 2017-09-19 | 2018-02-13 | 八方电气(苏州)股份有限公司 | Electric bicycle infinitely variable speed transmission |
| CN107685828B (en) * | 2017-09-19 | 2023-03-24 | 八方电气(苏州)股份有限公司 | Stepless speed change transmission device for electric bicycle |
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