Gearbox for low-speed electric vehicle

A technology for electric vehicles and gearboxes, applied in transmissions, transmission parts, gear transmissions, etc., can solve problems such as affecting the output of high-speed gears, affecting the driving texture, and the speed ratio cannot be too different, so as to improve the climbing ability. Effect

Pending Publication Date: 2017-05-17
TAIZHOU DATAI MACHINERY & ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This kind of gearbox can only realize two-speed shifting. Since the speed ratio between the two gears cannot be too different, otherwise it will affect the driving quality. This will cause the low-speed torque to not be too large, otherwise it will affect the output of the high-speed gear, so Improvements in gradeability or high-speed performance

Method used

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  • Gearbox for low-speed electric vehicle
  • Gearbox for low-speed electric vehicle
  • Gearbox for low-speed electric vehicle

Examples

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Embodiment Construction

[0024] Such as Figure 1-11 As shown, a low-speed electric vehicle gearbox includes a box body 1, and a power input part 2, a deceleration part 3, a shift part 5, a power output part 7 and a shift mechanism 8 are arranged inside the box body 1, and is characterized in that : the shift part 5 includes a first gear shift pinion 51 and a second gear shift pinion 61 arranged in parallel, the first gear shift pinion 51 is sleeved with a first output tooth 52 and a first input tooth 53 , the second input teeth 54 and the short splines 55, the first output teeth 52 and the short splines 55 mesh with the first gear shift pinion 51, the first input teeth 53 and the second input teeth 54 can be shifted relative to the first gear The pinion shaft 51 rotates freely, the first input tooth 53 and the second input tooth 54 mesh with the first output tooth 31 and the second output tooth 32 of the deceleration part 3 respectively, and the short spline 55 is located on the first input tooth 53 ...

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PUM

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Abstract

The invention relates to a gearbox for a low-speed electric vehicle. A gear shifting mechanism adopts a structure with double movable shaft sleeves and double gear shifting gear shafts. A slope climbing gear is added on the basis of a low-speed gear, an idle gear and a high-speed gear, the speed ratio range of the gearbox is wider, and the adapting capability of the gearbox is improved. The gearbox is particularly suitable for being used on the low-speed electric vehicle such as an electric tricycle, realizes high torque under the condition of low current, and at the same time, combines a normal-speed running function, so that the problem that an inner circuit is burnt due to a too-large current value when an existing electric vehicle climbs a slope is solved. The gearbox is characterized by being simple to operate, being convenient in gear shifting and being safe and reliable.

Description

technical field [0001] The invention relates to gearbox technology, in particular to a low-speed electric vehicle gearbox. Background technique [0002] Electric vehicles are popular among consumers for their clean, pollution-free and low-cost features. At present, the speed or torque output of electric vehicles is generally determined by the magnitude of the current, but the current can only change within a certain range, and the range of change is limited. , the current electric vehicles have contradictions in the output of speed and torque. The best way to solve this contradiction is to set up a set of electric vehicle gearboxes. The existing electric vehicle gearboxes are realized through the positive and negative rotation of the motor. In the conversion of output torque, there is inevitably a process of motor deceleration, stop and reverse rotation during the conversion process, which is inconvenient to use. [0003] For this reason, the applicant designs a gearbox for...

Claims

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Application Information

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IPC IPC(8): F16H3/093F16H57/023
CPCF16H3/093F16H57/023
Inventor 蔡国法
Owner TAIZHOU DATAI MACHINERY & ELECTRICAL CO LTD
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