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Automatic two-stage speed changing mechanism for electric vehicle

An automatic transmission, electric vehicle technology, applied in mechanical equipment, transmission, transmission parts, etc., can solve the problems of reduced endurance, increased output horsepower of motor 72, poor transmission efficiency of the mechanism, etc., to achieve improved endurance, optimal transmission efficiency, The effect of saving electricity demand

Inactive Publication Date: 2013-10-30
周文政
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the belt 74 is used as a power transmission element, the transmission efficiency of its mechanism is poor, and the output horsepower of the motor 72 must be increased. As a result, the power consumption will increase, resulting in a reduction in its endurance, which is not perfect.

Method used

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  • Automatic two-stage speed changing mechanism for electric vehicle
  • Automatic two-stage speed changing mechanism for electric vehicle
  • Automatic two-stage speed changing mechanism for electric vehicle

Examples

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Embodiment Construction

[0083] First, see Figure 2 to Figure 9 As shown, a possible embodiment of the present invention includes:

[0084] A gearbox housing 20, including an outer shell 21 and an inner shell 22, the inner and outer shells 21 / 22 are locked with several screws 23, and the accommodating space 24 formed by it is used to accommodate the required speed change Components: the shell 21 is provided with a first shaft hole 211 , a first shaft seat 212 , a second shaft hole 213 , a second shaft seat 214 , and a third shaft seat 215 at relevant positions; the inner shell 22 corresponds to the outer shell 21 A fourth shaft seat 221 , a fifth shaft seat 222 , and a sixth shaft seat 223 are provided at the relevant positions; each of the aforementioned shaft seats is individually embedded with a ball bearing 15 .

[0085] A motor 10, including a motor housing 11, a rotary member 12, and an input shaft 13, is locked on the outside of the gearbox housing 20 with several screws 14, and the motor hou...

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PUM

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Abstract

An automatic two-stage speed changing mechanism for an electric vehicle comprises a gearbox shell, a motor, a transmission shaft, an output shaft, a first gear, a second gear, a first one-way gear, a second one-way gear, a third gear, a fourth gear and a clutch. The gearbox shell comprises an outer shell and an inner shell. The motor provided with an input shaft is disposed on the outer side of the gearbox shell. The transmission shaft can pivot in the gearbox shell. The output shaft for outputting power is connected with an external component. The number of teeth disposed on the peripheries of the first gear and the second gear is different, and the first gear and the second gear are coaxially disposed on the input shaft. The number of teeth disposed on the peripheries of the first one-way gear and the second one-way gear is different, and the first one-way gear and the second one-way gear are coaxially disposed on the transmission shaft. The third gear is sleeved on the transmission shaft. The fourth gear is sleeved on the output shaft. The periphery of the third gear is meshed with that of the fourth gear. The clutch comprises a drive part and a driven part. The automatic two-stage speed changing mechanism having different torque output and rotation speed ratios has the advantages that requirements of different road conditions can be adapted to, two-stage speed changing can be achieved automatically during running of an electric vehicle, good transmission efficiency is achieved, power of the motor can be saved, and endurance of the electric vehicle can be increased.

Description

technical field [0001] The invention relates to a two-stage automatic transmission mechanism for an electric vehicle, especially one that can automatically drive the clutch at a high speed, and utilizes the over-speed characteristic of a one-way bearing to enable two sets of gear sets with different speed ratios to operate independently automatic transmission mechanism. Background technique [0002] Due to the demand for transportation, the number of locomotives for transportation has been increasing, but traditional locomotives use gasoline as fuel, which has extremely serious and negative damage to energy consumption and air pollution; based on the awakening of environmental awareness and the increasing requirements for environmental quality Therefore, government departments and environmental protection groups have poured a lot of resources and attention into electric vehicles that do not cause environmental harm. [0003] The development of electric vehicles has been goi...

Claims

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Application Information

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IPC IPC(8): F16H3/10F16H57/023
Inventor 周文政
Owner 周文政
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