Middle motor capable of realizing multi-gear variable-speed adjustment

A technology with a central motor and variable speed adjustment, which is applied in the direction of bicycle gear shifting mechanisms, vehicle gearboxes, wheel transmissions, etc., can solve problems such as inability to achieve variable speeds, achieve smooth and labor-saving riding experience, small size, reduced The effect of flat space

Active Publication Date: 2021-02-26
BAFANG ELECTRIC (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned mid-mounted motor cannot achieve variable speed when simply pedaling, and only two different reduction ratios can be realized through the motor.

Method used

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  • Middle motor capable of realizing multi-gear variable-speed adjustment
  • Middle motor capable of realizing multi-gear variable-speed adjustment
  • Middle motor capable of realizing multi-gear variable-speed adjustment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A mid-mounted motor capable of multi-speed variable speed adjustment, refer to figure 1 and figure 2 , which includes a first housing 81 and a second housing 82, the cavity formed by the first housing 81 and the second housing 82 is provided with a power-assisted driving mechanism 91, a speed change mechanism and a center shaft mechanism 93; the power-assisted driving mechanism 91, The speed change mechanism and the central axis mechanism 93 form a three-axis design, which ensures that the overall size and weight of the motor are reduced.

[0071] refer to figure 2 and Figure 4 , the central axis mechanism 93 includes a pedal power input assembly and a driving power output assembly, the booster drive mechanism 91 includes a booster motor 911 and a booster input assembly; The variable speed input component includes a pedal variable speed input component and an assist variable speed input component; wherein, the pedal power input component is connected with the peda...

Embodiment 2

[0118] A mid-mounted motor capable of multi-speed variable speed adjustment, refer to Figure 21 , based on Embodiment 1, the difference between this embodiment and Embodiment 1 is that in this embodiment, the first spring 67 is sleeved on the center shaft input sleeve 51, and the gap between the first spring 67 and the transmission ring gear 62 A first plane bearing assembly 672 is provided; the first plane bearing assembly 672 includes balls, a cage and a bearing bracket, and the bearing bracket is also used as a raceway for the balls, while the balls are in contact with the outer end surface of the transmission ring gear 62; one end of the first spring 67 It is in contact with the end surface of the center shaft input gear 52, and one end is in contact with the bearing bracket, and its elastic thrust F1 is applied to the transmission ring gear 62 through the bearing bracket and the roller.

[0119] refer to Figure 22 , in this embodiment, a second plane bearing assembly i...

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Abstract

The invention discloses a middle motor capable of achieving multi-gear speed change adjustment, and relates to the field of power-assisted bicycle motors. According to the technical scheme, the middlemotor is characterized by comprising a middle shaft mechanism, wherein the middle shaft mechanism comprises a pedal power input assembly and a driving power output assembly, a power-assisted drivingmechanism comprising a power-assisted motor and a power-assisted input assembly, and a speed changing mechanism comprising a speed changing input assembly comprising a pedal speed changing input assembly and a power-assisted speed changing input assembly, a gear shifting executing assembly, a gear shifting adjusting assembly and a speed changing output assembly; the pedal power input assembly is connected with the pedal speed changing input assembly to achieve pedal power input, the assistance input assembly is connected with the assistance variable-speed input assembly to achieve auxiliary power input, and the speed changing output assembly is connected with the driving power output assembly to achieve driving force output. The middle motor has the motor power-assisted function and the multi-gear shifting function, modules on the power-assisted bicycle can be reduced, multi-gear speed change adjustment is achieved, and a user can assemble the power-assisted bicycle more easily.

Description

technical field [0001] The invention relates to the field of power-assisted bicycle motors, more specifically, it relates to a mid-mounted motor capable of multi-speed variable speed adjustment. Background technique [0002] At present, the center-mounted power-assisted bicycle motors on the market are mainly ordinary deceleration center-mounted motors, which cannot realize gear shifting and shifting, and bicycle shifting still depends on its own bicycle gear switcher. [0003] If the user wants the power of the motor and the smooth speed change, two systems of the bicycle gear switch and the deceleration center motor are needed. But the two systems are not only difficult to match, but also relatively complicated to assemble the bicycle. [0004] The existing authorized notification number is the Chinese patent of CN104953759B, which discloses a middle motor with a variable reduction ratio for electric bicycles, which includes a housing, a motor, a primary gear, a pinion, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M6/55B62M11/14B62M25/08
CPCB62M6/55B62M11/14B62M25/08
Inventor 贺先兵官景旗邹斌黄善劲
Owner BAFANG ELECTRIC (SUZHOU) CO LTD
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