Spiral thrust mechanism of continuously variable transmission (CVT) for electrically adjusting reducing of driving wheel and method

Abstract

The invention relates to the speed change technical field of motive vehicles, and discloses a spiral thrust mechanism of a continuously variable transmission (CVT) for electrically adjusting the reducing of a driving wheel and a method. A driving wheel reducing spiral thrust mechanism used by the method comprises a speed control gear as a movable component and a spiral thrust seat as a fixed component, wherein inner screw threads arranged at one end in a speed control gear hole are in screwed connection with outer screw threads of the spiral thrust seat; the spiral thrust seat sleeves a driving shaft by a bearing; the outer ring of the spiral thrust seat is arranged in a shaft hole of a box; the spiral thrust seat and the driving shaft are axially located; a location slot limiting the rotation of the spiral thrust seat is arranged on the spiral thrust seat. A motive vehicle electrically-controlled CVT formed by the spiral thrust mechanism of the CVT disclosed by the invention can meet the requirement that fuel or electric scooters run at a high speed and climb at a low speed, and can control the speed ratio change of the driving wheel and a driven wheel to complete the acceleration and deceleration of the electric control speed change; the spiral thrust mechanism of the CVT is simple in structure, convenient to operate, low in production cost and easy to promote and popularize.

Description

[0001] technical field [0002] The invention relates to the technical field of transmission devices for power vehicles, in particular to a helical thrust mechanism and a method for electrically adjusting the diameter reduction of a driving wheel of a continuously variable transmission. Background technique [0003] At present, fuel-powered scooters or electric scooters are generally used as transportation vehicles, and the current fuel-powered scooters usually have two types of gear shifting: one is manual gear shifting, and the pedal clutch needs to be used to cut off the power when changing gears. Only when shifting gears can be performed, there are frequent shifting and difficult operation; the other is advanced automatic shifting, which is convenient for shifting operations, but the price is high. The current variable speed of electric scooter is usually: one is directly driven by electric motor, and the electric motor works in the low-efficiency area when starting or...

AI Technical Summary

Problems solved by technology

[0003] At present, fuel scooters or electric scooters are generally used as vehicles for transportation, and the current fuel scooters usually have two types of gear shifting: one is manual shifting , then the power needs to be cut off by the foot clutch when shifting gears, so that the gears can be shifted frequently, and the operation is difficult; the other is advanced automatic gear shifting, which is easy to operate, but the price is high

The current variable speed of electric scooter is usually: one is directly driven by electric motor, and the electric motor works in the low-efficiency area when starting or climbing, and the output current is large, which will consume more energy and affect the cruising range and service life of the battery.

Another is that the motor is driven by the deceleration form of a reduction box, which solves the drive when starting or climbing, but there is an electric scooter that always works at a low speed and loses the driving speed; there is also a power output by the motor. Reduction Gearbox Shifting Variable Speed ​​Drive Vehicle

There are frequent manual shifting and difficult operation, which cannot satisfy automatic shifting. It is necessary to ensure a certain amount of traction when starting and climbing, and to ensure that a certain speed can be achieved when driving on flat roads, that is, low torque at high speed and high torque at low speed. no automatic trade-off between

It is often to take care of the driving speed but lose part of the climbing ability

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