CN212500858U - Motorcycle electric power assembly - Google Patents
Motorcycle electric power assembly Download PDFInfo
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- CN212500858U CN212500858U CN202021383421.4U CN202021383421U CN212500858U CN 212500858 U CN212500858 U CN 212500858U CN 202021383421 U CN202021383421 U CN 202021383421U CN 212500858 U CN212500858 U CN 212500858U
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- planetary gear
- electric power
- side arm
- power assembly
- motorcycle electric
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Abstract
The utility model belongs to the technical field of electric motorcycle car, refer in particular to a motorcycle electric power assembly, including back chain stay, back chain stay includes side arm one, side arm two and connecting portion, is equipped with motor casing on the side arm one, and fixed connection planetary gear left socle is gone up to motor casing, and fixed connection planetary gear right branch frame is gone up to side arm two, planetary gear left socle and planetary gear right branch frame rotate with planetary gear respectively and are connected, and the output shaft stretches out the fixed suit sun gear of motor casing, and sun gear's external tooth is connected with planetary gear's external tooth meshing, planetary gear's external tooth still is connected with outer lane gear's internal tooth meshing, outer lane gear's both sides are fixed with planetary gear case left side body and planetary gear case right side body respectively, planetary gear case left side body and/or planetary gear case. The utility model discloses motor current is little during the starting, and motor and control system reliability are high, low in manufacturing cost, and low-speed starting, rear wheel drive torsion is big, climbing ability is good, and the security performance is high.
Description
The technical field is as follows:
the utility model belongs to the technical field of electric motorcycle car, refer in particular to a motorcycle electric power assembly.
Background art:
the electric motorcycle on the existing market generally uses a wheel hub motor, does not have speed change mechanism, and the motor moment of torsion can't increase through speed change mechanism and transmit for the drive wheel, so has following drawback: 1. when starting, the motor works with large current, the manufacturing cost of the controller is high, and the controller is particularly suitable for a high-power motor; 2. when starting, the electric motorcycle has large forward impact and potential safety hazard; 3. the rear wheel has small driving torque force and poor climbing capability; 4. the rear wheel is supported by the independent rear bottom fork, the structure is too complex, the rear wheel cannot run at high precision, and potential safety hazards exist.
The invention content is as follows:
the utility model aims at providing a motorcycle electric power assembly, motor current is little when its starting, and motor and control system's reliability is high, low in manufacturing cost, and low speed starting, rear wheel drive torsion are big, the climbing ability is good, and rear wheel running accuracy is high, and the security performance is high.
The utility model discloses a realize like this:
a motorcycle electric power assembly comprises a rear bottom fork, wherein the rear bottom fork comprises a side arm I and a side arm II which are arranged in parallel and a connecting part for connecting the side arm I and the side arm II, a motor shell is arranged on the side arm I, one end of a planetary gear left support is fixedly connected to the motor shell, the other end of the planetary gear left support is rotatably connected with a planetary gear, one end of a planetary gear right support is fixedly connected to the side arm II, the other end of the planetary gear right support is rotatably connected with the planetary gear, a stator, a rotor and an output shaft are sequentially arranged in the motor shell, the output shaft extends out of the motor shell to be fixedly sleeved with a sun gear, external teeth of the sun gear are meshed with external teeth of the planetary gear, the external teeth of the planetary gear are further meshed with internal teeth of an outer ring gear, a planetary gear box left body and a planetary gear box right body are respectively, and the planetary gear box left body and/or the planetary gear box right body are/is fixedly connected with the wheel hub.
In the motorcycle electric power assembly, the side arm II is provided with the disc brake pump, and the right body of the planetary gear box is provided with the disc brake disc which is arranged corresponding to the disc brake pump.
In the motorcycle electric power assembly, the planetary gear left support and the planetary gear right support are connected with the planetary gear in a rotating mode after being fixedly connected through the bolt, the planetary gear box left body is sleeved on the planetary gear left support and is connected with the planetary gear left support in a rotating mode through the bearing, and the planetary gear box right body is sleeved on the planetary gear right support and is connected with the planetary gear right support in a rotating mode through the bearing.
In the motorcycle electric power assembly, the output shaft is fixedly connected with the sun gear through an involute spline.
In the motorcycle electric power assembly, the rear bottom fork and the motor housing are integrally formed and are gravity cast parts.
In the motorcycle electric power assembly, the first side arm and the second side arm are integrally formed, and the second side arm is fixed on the connecting portion through a bolt.
In the motorcycle electric power assembly, the connecting part is sleeved with the central shaft sleeve, and the connecting part is connected to the frame through the central shaft sleeve.
In the motorcycle electric power assembly, two needle roller bearings are sleeved between the connecting part and the central shaft sleeve, the two needle roller bearings are respectively positioned at two ends of the central shaft sleeve, and trapezoidal shaft sleeves sleeved on the central shaft sleeve are respectively arranged outside the two needle roller bearings.
In the motorcycle electric power assembly, the outer diameter D1 of the outer ring gear is 223mm, the width H1 of the outer ring gear is 16mm, the outer diameter D2 of the stator is 200mm, the depth H2 of the motor housing is 102mm, and the width H3 of the connecting part is 265 mm.
In the motorcycle electric power assembly, the electric power assembly is provided with the unilateral shock absorber.
Compared with the prior art, the utility model outstanding advantage is:
1. the utility model reduces the speed through the planetary gear set, the current of the motor is small when starting, the reliability of the motor and the control system is high, and the manufacturing cost is low; the vehicle starts at low speed, has small forward impact and high safety performance; the torque is increased by the planetary gear set, and the rear wheel driving torque is large and the climbing capability is good; simple structure, the rear wheel can high accuracy operation, and the security performance is high.
2. The utility model discloses a back chain stay and motor design structure as an organic whole become a complete motorcycle electric power assembly of a section, conveniently install the motorcycle with the electric power assembly on, save the whole car installation time of motorcycle, replace current split type structure, the substitution rate is higher.
Description of the drawings:
fig. 1 is a first cross-sectional view of the present invention;
fig. 2 is a second cross-sectional view of the present invention;
fig. 3 is a perspective view of the present invention.
Reference numerals: 1. a rear bottom fork; 1a, a side arm I; 1b, a side arm II; 1c, a connecting part; 2. a motor housing; 3. a stator; 4. a rotor; 5. an output shaft; 6. a sun gear; 7. a planetary gear; 8. an outer ring gear; 9. a planetary gear left carrier; 10. a planetary gear right carrier; 11. a planetary gearbox left body; 12. a planetary gear box right body; 13. a hub; 14. a disc brake pump; 15. a disc brake disc; 16. a central shaft sleeve; 17. a needle bearing; 18. trapezoidal axle sleeve.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:
a motorcycle electric power assembly comprises a rear bottom fork 1, wherein the rear bottom fork 1 comprises a side arm I1 a and a side arm II 1b which are arranged in parallel, and a connecting part 1c for connecting the head of the side arm I1 a and the head of the side arm II 1b, a motor shell 2 is arranged on the side arm I1 a, one end of a planet gear left support 9 is fixedly connected onto the motor shell 2, the other end of the planet gear left support 9 is rotatably connected with a planet gear 7, one end of a planet gear right support 10 is fixedly connected onto the side arm II 1b, the other end of the planet gear right support 10 is rotatably connected with the planet gear 7, a stator 3, a rotor 4 and an output shaft 5 are sequentially arranged in the motor shell 2, the output shaft 5 extends out of the motor shell 2 to fixedly sleeve a sun gear 6, the outer teeth of the sun gear 6 are meshed with the outer teeth of the planet gear 7, the outer teeth of the planet gear 7 are also meshed, and a planetary gear box left body 11 and a planetary gear box right body 12 are respectively fixed on two sides of the outer ring gear 8, and the planetary gear box left body 11 and/or the planetary gear box right body 12 are fixedly connected with a wheel hub 13.
The utility model discloses a theory of operation: the fixed irrotational of planetary gear left socle 9 and planetary gear right branch frame 10, planetary gear 7's central point puts unchangeably promptly, and output shaft 5 is rotatory to drive sun gear 6 rotatory to it is rotatory to drive planetary gear 7, and then drives outer ring gear 8 and rotate, and planetary gear case left part 11 and planetary gear case right part 12 can follow the rotation, thereby drives wheel hub 13 and rotates.
In the utility model, the output shaft 5 acts on the rear wheel after reducing the speed, thereby greatly relieving the starting speed, realizing low-speed starting, small forward impact and high safety performance; the transmission ratio of the sun gear 6 to the outer ring gear 8 is 5:1, the current of the motor is reduced by about 5 times when starting, the working current of the control system is reduced by about 5 times simultaneously, the reliability of the motor and the control system is improved, and the cost of the control system is reduced; because the planetary gear set increases the torque, the driving torque of the rear wheel is improved by 5 times, the uphill resistance can be better overcome, and the climbing capability of the electric motorcycle is improved; simple structure, through planetary gear set speed reduction, the rear wheel can high accuracy operation, and the security performance is high.
Preferably, a disc brake pump 14 is installed on the side arm II 1b, and a disc brake disc 15 which is arranged corresponding to the disc brake pump 14 is installed on the planetary gear box right body 12. The disc brake pump 14 and the disc brake disc 15 cooperate to play a role of braking. The tyre is sleeved outside the hub 13, and the size from the disc brake disc 15 to the centre of the tyre is 95.8 mm.
In the embodiment, the side arm 1a is provided with a side cover at the outer side, and the size of the side cover from the center of the tire is 190 mm.
As shown in fig. 1, the connection structure of the planetary gear left carrier 9, the planetary gear right carrier 10, the planetary gear box left body 11 and the planetary gear box right body 12: planetary gear left socle 9 and planetary gear right branch frame 10 rotate with planetary gear 7 after linking firmly through the bolt and being connected, planetary gear box left side body 11 suit is on planetary gear left socle 9 and rotate with planetary gear left socle 9 through the bearing and be connected, the bearing specification is 6915, planetary gear box right side body 12 suit is on planetary gear right branch frame 10 and rotate with planetary gear right branch frame 10 through the bearing and be connected, the bearing specification is 6206, and the size of opening of two bearings is 61.5 mm.
Fixed connection mode of the output shaft 5 and the sun gear 6: the output shaft 5 is fixedly connected with the sun gear 6 through an involute spline.
Preferably, the rear fork 1 and the motor housing 2 are integrally formed and are gravity cast.
As shown in fig. 2, the rear fork 1 has a structure: the side arm I1 a and the connecting part 1c are integrally formed, and the side arm II 1b is fixed on the connecting part 1c through a bolt.
Connection mode of the connection portion 1c and the vehicle frame: the connecting part 1c is internally sleeved with a central shaft sleeve 16, and the connecting part 1c is connected to the frame through the central shaft sleeve 16.
As shown in fig. 2, the structure of the connecting portion 1c and the center boss 16: needle roller bearings 17 are sleeved between the connecting portion 1c and the central shaft sleeve 16, two needle roller bearings 17 are arranged and are respectively located at two ends of the central shaft sleeve 16, and trapezoidal shaft sleeves 18 sleeved on the central shaft sleeve 16 are respectively arranged on outer sides of the two needle roller bearings 17. In the present embodiment, the needle bearing 17 has an inner diameter of 20mm and a length of 29mm, and the distance H4 between the center of the central hub 16 and the center of the output shaft 5 is 425 mm.
Preferably, the outer diameter D1 of the outer ring gear 8 is 223mm, the width H1 of the outer ring gear 8 is 16mm, the outer diameter D2 of the stator 3 is 200mm, the depth H2 of the motor housing 2 is 102mm, and the width H3 of the connecting portion 1c is 265 mm.
Preferably, the electric power assembly is provided with a unilateral shock absorber.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a motorcycle electric power assembly, includes back chain stay (1), back chain stay (1) is including parallel arrangement's side arm one (1a) and side arm two (1b) and connecting portion (1c) of connecting side arm one (1a) head and side arm two (1b) head, its characterized in that: be equipped with motor casing (2) on side arm one (1a), fixed connection planetary gear left socle (9) one end is gone up in motor casing (2), the other end and planetary gear (7) of planetary gear left socle (9) rotate and be connected, fixed connection planetary gear right socle (10) one end is gone up in side arm two (1b), the other end of planetary gear right socle (10) with planetary gear (7) rotate and are connected, install stator (3), rotor (4) and output shaft (5) in proper order in motor casing (2), fixed suit sun gear (6) of motor casing (2) are stretched out in output shaft (5), the external tooth of sun gear (6) is connected with the external tooth meshing of planetary gear (7), the external tooth of planetary gear (7) still is connected with the internal tooth meshing of outer lane gear (8), the both sides of outer lane gear (8) are fixed with planetary gear case left side body (11) and planetary gear case right side body respectively (12) And the planetary gear box left body (11) and/or the planetary gear box right body (12) are/is fixedly connected with a hub (13).
2. A motorcycle electric power assembly as claimed in claim 1, wherein: install dish pump (14) of stopping on side arm two (1b), install on planetary gear box right side body (12) and stop dish (15) that pump (14) correspond the setting with the dish.
3. A motorcycle electric power assembly as claimed in claim 1, wherein: planetary gear left socle (9) and planetary gear right branch frame (10) are connected with planetary gear (7) rotation through the bolt after linking firmly, planetary gear box left side body (11) suit is on planetary gear left socle (9) and rotate with planetary gear left socle (9) through the bearing and be connected, planetary gear box right side body (12) suit is on planetary gear right branch frame (10) and rotate with planetary gear right branch frame (10) through the bearing and be connected.
4. A motorcycle electric power assembly as claimed in claim 1, wherein: the output shaft (5) is fixedly connected with the sun gear (6) through an involute spline.
5. A motorcycle electric power assembly as claimed in claim 1, wherein: the rear bottom fork (1) and the motor shell (2) are integrally formed and are gravity casting parts.
6. A motorcycle electric power assembly as claimed in claim 1, wherein: the side arm I (1a) and the connecting part (1c) are integrally formed, and the side arm II (1b) is fixed on the connecting part (1c) through a bolt.
7. A motorcycle electric power assembly as claimed in claim 1, wherein: the connecting part (1c) is internally sleeved with a central shaft sleeve (16), and the connecting part (1c) is connected to the frame through the central shaft sleeve (16).
8. A motorcycle electric power assembly as claimed in claim 7, wherein: needle roller bearings (17) are sleeved between the connecting portion (1c) and the central shaft sleeve (16), two needle roller bearings (17) are arranged and are respectively located at two ends of the central shaft sleeve (16), and trapezoidal shaft sleeves (18) sleeved on the central shaft sleeve (16) are respectively arranged on the outer sides of the two needle roller bearings (17).
9. A motorcycle electric power assembly as claimed in claim 1, wherein: the external diameter of outer ring gear (8) is 223mm, the width of outer ring gear (8) is 16mm, the external diameter of stator (3) is 200mm, the degree of depth of motor casing (2) is 102mm, the width of connecting portion (1c) is 265 mm.
10. A motorcycle electric power assembly as claimed in claim 1, wherein: a unilateral shock absorber is arranged on the electrodynamic force assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021383421.4U CN212500858U (en) | 2020-07-14 | 2020-07-14 | Motorcycle electric power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021383421.4U CN212500858U (en) | 2020-07-14 | 2020-07-14 | Motorcycle electric power assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212500858U true CN212500858U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021383421.4U Active CN212500858U (en) | 2020-07-14 | 2020-07-14 | Motorcycle electric power assembly |
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| Country | Link |
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| CN (1) | CN212500858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700815A (en) * | 2021-08-31 | 2021-11-26 | 浙江台运汽车科技有限公司 | Integrated electric rim gear speed reduction transmission system for friction |
-
2020
- 2020-07-14 CN CN202021383421.4U patent/CN212500858U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700815A (en) * | 2021-08-31 | 2021-11-26 | 浙江台运汽车科技有限公司 | Integrated electric rim gear speed reduction transmission system for friction |
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