CN203064151U - Middle-arranged power output mechanism of electric power bicycle - Google Patents
Middle-arranged power output mechanism of electric power bicycle Download PDFInfo
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- CN203064151U CN203064151U CN 201220665045 CN201220665045U CN203064151U CN 203064151 U CN203064151 U CN 203064151U CN 201220665045 CN201220665045 CN 201220665045 CN 201220665045 U CN201220665045 U CN 201220665045U CN 203064151 U CN203064151 U CN 203064151U
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Abstract
The utility model relates to a middle-arranged power output mechanism of an electric power bicycle. The middle-arranged power output mechanism of the electric power bicycle comprises a main case, a crankshaft which is arranged in the main case in a penetrating mode, a big gear disc connected with the crankshaft, a motor arranged on the crankshaft and a transmission unit, wherein the transmission unit is provided with a sun wheel, an annular gear fixedly arranged in the main case, a planet support connected with the big gear disc and two planet wheels arranged on the planet support, the sun wheel is provided with a spiral gear and a unidirectional ratchet wheel connected with the spiral gear and the motor, and each planet wheel is provided with a spiral tooth part which is meshed with the spiral gear and a planet tooth part which is meshed with the annular gear. The spiral gear of the sun wheel is meshed with the spiral tooth parts of both planet wheels, the size can be reduced, the processing error can be eliminated, and thus abnormal noises and vibration which are generated in operation are reduced.
Description
Technical field
The utility model is relevant with electric booster bicycle, particularly relevant for a kind of mid-power take-off mechanism of electric booster bicycle.
Background technology
Traditional electric booster bicycle all is to arrange in pairs or groups power-assisted that a power take-off mechanism (as mid-motor) provides and the power that obtains to advance by rider's stampede power, make electric booster bicycle can not cause too big burden to rider's muscle power, and the surplus effect that can reach body-building again of lying fallow.
With regard to general mid-motor because spare part itself is many, so after assembling is finished, be easy to be subjected to each part Mismachining tolerance influence and cause producing in the running different sound or chatter phenomena.In order to address the above problem, No. 3974386 patent of Japan special permission disclose [reduction gear of Vidacare corp " be most helical wheels (label 24 as shown in Figure 2,25 assembly) to be set reach the effect of eliminating Mismachining tolerance between motor force-output shaft (assembly of label 17 as shown in Figure 2) 17 and crank shaft (assembly of label 6 as shown in Figure 2); but between these assemblies be adopt disalignment to configuration; so can produce the problem of volume of timber increase, so the design of patent has improved necessity really.
The utility model content
The purpose of this utility model is to provide a kind of mid-power take-off mechanism of electric booster bicycle, and it can reduce the volume of timber, and the Mismachining tolerance that can eliminate between each member reduces different sound and the vibration that produces when turning round.
For achieving the above object, the mid-power take-off mechanism of the electric booster bicycle that the utility model provides includes:
One casing;
One crank shaft is arranged in this casing rotationally;
One large fluted disc is connected in an end of this crank shaft, and has the transmission external member that stretches in this casing;
One motor is located in this casing and is sheathed on this crank shaft, and has the rotor of this crankshaft rotation relatively; And
One gear unit, has an Internal gear, one sun wheel, delegation's prong frame, and at least two satellite gear, this Internal gear is fixed in this casing, this sun wheel is coaxial to be socketed on this crank shaft and to have a helical wheel and a single direction ratchet, this single direction ratchet is fixed in the rotor of this motor and connects this helical wheel coaxially, this planet stent is sheathed on this crank shaft rotationally and connects the transmission external member of this big gear wheel, respectively this satellite gear is located at this planet stent rotationally and is had a helical tooth portion and a planet tooth portion, the helical wheel of this helical tooth portion this sun wheel of interlock, this planet tooth portion is connected in a side and this Internal gear of interlock of this helical tooth portion coaxially.
The mid-power take-off mechanism of described electric booster bicycle, wherein the single direction ratchet of this sun wheel has an outer ratchet, a handle ratchet wheel, and most ratchets, this outer ratchet is fixed in the rotor of this motor, this handle ratchet wheel is coaxial this helical wheel that is connected in integratedly, and respectively this ratchet is located between this outer ratchet and this handle ratchet wheel.
The mid-power take-off mechanism of described electric booster bicycle wherein is fixed together by at least one associative key between the rotor of the outer ratchet of this single direction ratchet and this motor.
The mid-power take-off mechanism of described electric booster bicycle wherein is provided with a ball bearing of main shaft between the handle ratchet wheel of this single direction ratchet and this planet stent.
The mid-power take-off mechanism of described electric booster bicycle wherein is provided with at least one ball bearing of main shaft between the rotor of this crank shaft and this motor.
The mid-power take-off mechanism of described electric booster bicycle, wherein the transmission external member of this large fluted disc is connected in this crank shaft by a single direction ratchet.
The mid-power take-off mechanism of described electric booster bicycle, wherein the transmission external member of this large fluted disc, this planet stent, and respectively linked together by a planet wheel spindle between this satellite gear.
By above-mentioned design, mid-power take-off mechanism of the present utility model is integrated into this sun wheel with this single direction ratchet and this helical wheel and is used as main power transmitting assembly, so just, can reduce the volume of timber, simultaneously can eliminate Mismachining tolerance and effectively reduce the different sound that produces in the running and the situation of vibration.
Description of drawings
Fig. 1 is the block diagram of the utility model one preferred embodiment.
Fig. 2 is the three-dimensional exploded view of the utility model one preferred embodiment.
Fig. 3 is the longitudinal sectional view of the utility model one preferred embodiment.
Fig. 4 is the transverse sectional view of the utility model one preferred embodiment, mainly shows the rotor of motor and the relation between the single direction ratchet.
Fig. 5 is another transverse sectional view of the utility model one preferred embodiment, mainly shows the state that planet stent does not rotate as yet.
Fig. 6 is analogous to Fig. 5, mainly shows the state when planet stent rotates.
Primary clustering nomenclature in the accompanying drawing:
10 mid-power take-off mechanisms, 20 casings, 22 housings, 24 end caps, 30 crank shafts, 32 cranks, 40 large fluted discs, 42 transmission external members, 44 fluted disc permanent seats, 46 fluted disc bodies, 48 single direction ratchet, 50 motors, 52 stators, 54 rotors, 56 ball bearing of main shafts, 60 gear units, 61 Internal gears, 62 sun wheels, 63 planet stents, 632 bolts, 64 satellite gears, 642 helical tooth portions, 644 planet tooth portions, 65 ball bearing of main shafts, 66 planet wheel spindles, 70 helical wheels, 80 single direction ratchet, 82 outer ratchets, 84 handle ratchet wheels, 86 ratchets, 88 associative keys.
The specific embodiment
Mid-power take-off mechanism of the present utility model includes a casing, a crank shaft, a large fluted disc, an Internal gear, a motor, and a gear unit.This crank shaft is arranged in this casing rotationally; This large fluted disc is connected in an end of this crank shaft, makes this large fluted disc can be subjected to the drive of this crank shaft and rotates, and this large fluted disc also has the transmission external member that stretches in this casing; This Internal gear is fixed in this casing; This motor is located in this casing and is sheathed on this crank shaft, and in order to power-assisted to be provided, this motor also has the rotor of this crankshaft rotation relatively; This gear unit is located in this casing, and has a sun wheel, delegation's prong frame, and at least two satellite gear, this sun wheel is socketed on this crank shaft and has a helical wheel and a single direction ratchet, this single direction ratchet is fixed in the rotor of this motor and connects this helical wheel coaxially, this planet stent is sheathed on this crank shaft rotationally and connects the transmission external member of this big gear wheel, make this planet stent can drive this large fluted disc start synchronously, respectively this satellite gear is located at this planet stent and is had a helical tooth portion and a planet tooth portion, the helical wheel of this helical tooth portion this sun wheel of interlock, this planet tooth portion is connected in a side and this Internal gear of interlock of this helical tooth portion coaxially, make that respectively this satellite gear can rotate around this Internal gear when the drive that is subjected to this sun wheel, and drive this planet stent rotation simultaneously.
Following conjunction with figs. is also enumerated preferred embodiment, and structure of the present utility model and effect are elaborated.
Please consult Fig. 1 and Fig. 2 earlier, the mid-power take-off mechanism 10 for the utility model one preferred embodiment is mainly used in an electric booster bicycle, includes a casing 20, a crank shaft 30, a large fluted disc 40, a motor 50, and a gear unit 60.
As shown in Figures 2 and 3, large fluted disc 40 has the fluted disc permanent seat 44 that a transmission external member 42, is fixed in transmission external member 42, an and fluted disc body 46 that is fixed in fluted disc permanent seat 44, one end of transmission external member 42 wherein stretches in the casing 20 and by a single direction ratchet 48 and is connected with crank shaft 30, makes large fluted disc 40 can be subjected to the driving of crank shaft 30 and makes unidirectional rotation.
Motor 50 is located in the casing 20, and has a stator 52 and a rotor 54, rotor 54 be sheathed on crank shaft 30 and and crank shaft 30 between be provided with two ball bearing of main shafts 56 and finish assembling location.When stator 52 is passed to electric current, can drive rotor 54 relative stator 52 and crank shaft 30 rotations.
To shown in Figure 4, gear unit 60 has an Internal gear 61, a sun wheel 62, delegation's prong frame 63, and three satellite gears 64 as Fig. 2.The outer ring surface of Internal gear 61 is fixed in the internal face of the housing 22 of casing 20; The sun wheel 62 coaxial crank shafts 30 that are socketed on, and have a helical wheel 70 and a single direction ratchet 80, single direction ratchet 80 has an outer ratchet 82, a handle ratchet wheel 84, and three ratchet 86, between the rotor 54 of outer ratchet 82 and motor 50 by two relative associative keys 88 (at least one also has same effect certainly) and be fixed together, handle ratchet wheel 84 is a coaxial end that is connected in helical wheel 70 integratedly, and each ratchet 86 is located between outer ratchet 82 and the handle ratchet wheel 84; Planet stent 63 is sheathed on crank shaft 30 rotationally and is connected in the transmission external member 42 of large fluted disc 40 by most root bolts 632, making planet stent 63 can drive large fluted disc 40 by transmission external member 42 synchronously rotates, in addition, be provided with a ball bearing of main shaft 65 between planet stent 63 and the handle ratchet wheel 84 and finish both assembling location; Each satellite gear 64, planet stent 63, and linked together by a planet wheel spindle 66 between the transmission external member 42 of large fluted disc 40, and, each satellite gear 64 has a helical tooth portion 642 and a planet tooth portion 644, the helical wheel 70 of helical tooth portion 642 interlock sun wheels 62, planet tooth portion 644 is connected in a side and the interlock Internal gear 61 of helical tooth portion 642 coaxially, as shown in Figure 5.
More than be the detailed construction of mid-power take-off mechanism 10 of the present utility model, below describe with regard to motion flow of the present utility model and characteristic.
When the rider begins to drive, crank shaft 30 can be subjected to the drive of two cranks 32 and begin to rotate, and the transmission external member 42 that drives large fluted disc 40 by single direction ratchet 48 in rotating process carries out unidirectional rotation, to drive the purpose that large fluted disc 40 reaches power output.
In the time will exporting power-assisted, earlier rotor 54 being controlled in stator 52 energisings of motor 50 begins to rotate, the outer ratchet 82 that can drive the single direction ratchet 80 of sun wheel 62 earlier in rotor 54 rotating process rotates, then outer ratchet 82 can drive handle ratchet wheel 84 by each ratchet 86 again and rotate, then handle ratchet wheel 84 drives helical wheel 70 rotations again, make whole sun wheel 62 can be subjected to motor 50 rotor 54 driving and begin to rotate, sun wheel 62 can be driven each satellite gear 64 by the interlock between the helical tooth portion 642 of helical wheel 70 and each satellite gear 64 and begin to rotate when rotating, be to maintain static because of Internal gear 61 this moment, so each satellite gear 64 can rotate and drive simultaneously planet stent 63 around Internal gear 61 and rotate, as Fig. 5 and shown in Figure 6, thus, planet stent 63 just can drive the transmission external member 42 of large fluted disc 40 and rotate, to drive the effect that large fluted disc 40 reaches power-assisted output.
In sum, the sun wheel 62 that mid-power take-off mechanism 10 of the present utility model provides is that single direction ratchet 80 and helical wheel 70 are combined with coaxial ways of connecting, can allow overall volume more light and handy compared to known patent, the characteristic that also possesses simultaneously both, it is smooth-going for example to turn round, low noise, high output torque, and the elimination gap etc., the different sound of running and the vibration problem brought in order to effective solution Mismachining tolerance, in addition, mid-power take-off mechanism 10 of the present utility model utilizes ball bearing of main shaft 65 as the support between sun wheel 62 and the planet stent 63, can promote integrally-built durability and stability.
At last, the constituent components that the utility model discloses in previous embodiment is casehistory only, is not to limit scope of the present utility model, the alternative or variation of other equivalent elements, and the claim scope that also should be the utility model application contains.
Claims (7)
1. the mid-power take-off mechanism of an electric booster bicycle is characterized in that, includes:
One casing;
One crank shaft is arranged in this casing rotationally;
One large fluted disc is connected in an end of this crank shaft, and has the transmission external member that stretches in this casing;
One motor is located in this casing and is sheathed on this crank shaft, and has the rotor of this crankshaft rotation relatively; And
One gear unit, has an Internal gear, one sun wheel, delegation's prong frame, and at least two satellite gear, this Internal gear is fixed in this casing, this sun wheel is coaxial to be socketed on this crank shaft and to have a helical wheel and a single direction ratchet, this single direction ratchet is fixed in the rotor of this motor and connects this helical wheel coaxially, this planet stent is sheathed on this crank shaft rotationally and connects the transmission external member of this big gear wheel, respectively this satellite gear is located at this planet stent rotationally and is had a helical tooth portion and a planet tooth portion, the helical wheel of this helical tooth portion this sun wheel of interlock, this planet tooth portion is connected in a side and this Internal gear of interlock of this helical tooth portion coaxially.
2. according to the mid-power take-off mechanism of the described electric booster bicycle of claim 1, it is characterized in that, wherein the single direction ratchet of this sun wheel has an outer ratchet, a handle ratchet wheel, and most ratchets, this outer ratchet is fixed in the rotor of this motor, this handle ratchet wheel is coaxial this helical wheel that is connected in integratedly, and respectively this ratchet is located between this outer ratchet and this handle ratchet wheel.
3. according to the mid-power take-off mechanism of the described electric booster bicycle of claim 2, it is characterized in that, wherein be fixed together by at least one associative key between the rotor of the outer ratchet of this single direction ratchet and this motor.
4. according to the mid-power take-off mechanism of claim 2 or 3 described electric booster bicycles, it is characterized in that, wherein be provided with a ball bearing of main shaft between the handle ratchet wheel of this single direction ratchet and this planet stent.
5. according to the mid-power take-off mechanism of the described electric booster bicycle of claim 4, it is characterized in that, wherein be provided with at least one ball bearing of main shaft between the rotor of this crank shaft and this motor.
6. according to the mid-power take-off mechanism of the described electric booster bicycle of claim 5, it is characterized in that wherein the transmission external member of this large fluted disc is connected in this crank shaft by a single direction ratchet.
7. according to the mid-power take-off mechanism of the described electric booster bicycle of claim 6, it is characterized in that, wherein the transmission external member of this large fluted disc, this planet stent, and respectively linked together by a planet wheel spindle between this satellite gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665045 CN203064151U (en) | 2012-12-06 | 2012-12-06 | Middle-arranged power output mechanism of electric power bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665045 CN203064151U (en) | 2012-12-06 | 2012-12-06 | Middle-arranged power output mechanism of electric power bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203064151U true CN203064151U (en) | 2013-07-17 |
Family
ID=48762969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220665045 Expired - Lifetime CN203064151U (en) | 2012-12-06 | 2012-12-06 | Middle-arranged power output mechanism of electric power bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203064151U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105939924A (en) * | 2013-12-18 | 2016-09-14 | 雷伊小姐有限责任公司 | Gear motor system for vehicles with two or three wheels, installable coaxially with the bottom bracket of the vehicle and vehicle comprising said system |
| CN107054552A (en) * | 2015-12-25 | 2017-08-18 | 株式会社岛野 | Bicycle drive unit and its control device |
| WO2018188602A1 (en) * | 2017-04-12 | 2018-10-18 | 罗崑樟 | Continuous transmission for bicycle |
-
2012
- 2012-12-06 CN CN 201220665045 patent/CN203064151U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105939924A (en) * | 2013-12-18 | 2016-09-14 | 雷伊小姐有限责任公司 | Gear motor system for vehicles with two or three wheels, installable coaxially with the bottom bracket of the vehicle and vehicle comprising said system |
| CN105939924B (en) * | 2013-12-18 | 2020-04-10 | 拜骑自行车有限责任公司 | Electric gear motor system and vehicle with two or three wheels |
| CN107054552A (en) * | 2015-12-25 | 2017-08-18 | 株式会社岛野 | Bicycle drive unit and its control device |
| WO2018188602A1 (en) * | 2017-04-12 | 2018-10-18 | 罗崑樟 | Continuous transmission for bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |