Unidirectional-drive power device of electric motorcycle

A power unit, one-way transmission technology, applied in automatic clutches, clutches, mechanical equipment, etc., can solve problems such as pawl breakage

Inactive Publication Date: 2014-04-09
重庆昌德成电子有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that when the existing electric vehicle driving wheel adopts a ratchet pawl transmission mechanism, the pawl will break when transmitting a large load because of the fixed groove for installing the spring.

Method used

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  • Unidirectional-drive power device of electric motorcycle
  • Unidirectional-drive power device of electric motorcycle
  • Unidirectional-drive power device of electric motorcycle

Examples

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Embodiment Construction

[0015] Such as figure 1 and figure 2 As shown, a power device for a one-way transmission electric vehicle of the present invention includes a reducer case and a motor connected with the reducer case, an output shaft 1 is assembled in the reducer case through a bearing, and the output shaft 1 passes through the The flat key secures an intermeshing ratchet drive assembly. The internal meshing ratchet drive assembly includes the internal tooth ratchet 2 and the pawl plate 3 located in the internal tooth ratchet 2, and two symmetrical pawl grooves 31 are opened on the edge of the pawl plate 3, and in the two pawl grooves 31 A pawl 32 is installed respectively. The free ends of the two pawls 32 mesh with the internal ratchets of the internal tooth ratchet 2 respectively, and the rotating ends of the pawls 32 are fixed on the pawl disc 3 , and ring baffles are respectively arranged on both sides of the pawl disc 3 . Both sides of the pawl 32 extend outward to form lugs 33 , and ...

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PUM

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Abstract

The invention discloses a unidirectional-drive power device of an electric motorcycle, and relates to a unidirectional drive device that is characterized by utilizing meshing gears. As an internal meshing ratchet drive component is arranged in a reduction gear, a pawl plate on an output shaft is in an idling state in an internal ratchet and cannot be driven to rotate by the internal ratchet when the wheel speed is higher than the revolution speed of the output shaft; accordingly, passive rotation of a motor rotor is avoided. Besides, since no groove is arranged in the middle of a pawl, the structural strength of the pawl is improved greatly, cracking and breaking of the pawl in the process of high-load transmission are prevented, and improvement of the structural strength of the pawl is guaranteed further on the premise of no size increase.

Description

technical field [0001] The present invention relates to a power transmission device of an electric vehicle, in particular to a one-way transmission device characterized by the use of mutually meshing gears. Background technique [0002] At present, due to the serious environmental pollution of fuel motorcycles. In recent years, electric motorcycles using batteries as energy sources have been greatly developed, such as hub-type electric motorcycles. At first, this wheel-hub electric motorcycle was directly driven by a DC motor to drive the output shaft to drive the rear wheel. Its biggest disadvantages were small torque and poor climbing performance, so it was not suitable for use in mountainous and hilly areas. In order to overcome this defect, a two-stage gear reduction device was developed. Driven by the same DC motor, the power is decelerated by the gears, and then the power is output to the rear wheels, which increases the torque and thus improves the climbing performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D43/30
Inventor 杨香文李成浣
Owner 重庆昌德成电子有限公司
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