Mechanical type stepless variable speed unit with hybrid power differential speed regulation

Abstract

By adopting the dual differential theory, the invention takes an auxiliary power regulation mode to enable the rotation speed of a planet gear to be not changed and the revolution speed thereof to be changed on the basis of the structure of constant ratio constant mesh gears, so as to realize that an output shaft performs stepless variable speed with progressive dynamic variable-speed ratio i. The stepless variable speed unit is characterized in that a differential gear is in a hollow steel wheel shape; wheel teeth are arranged on an inner ring and an outer ring of the wheel; the internal teeth of the wheel are constantly meshed with two planet gears and provide a revolution supporting point for the planet gears; the external teeth of the wheel are constantly meshed with a variable speed regulation gear pair; and the variable speed regulation gear pair is connected with an auxiliary power machine via an overrunning coupler. When a sun gear obtains main power, the sun gear is respectively applied to a planet gear bracket and the differential gear, and if the rotary resistance is small, the differential gear reversely rotates and the planet gear bracket does not rotate; if the resistance is stopped, the main power is shifted to drive the planet gear bracket to perform positive rotation; if the other power drives the differential gear to perform positive rotation, at the moment double-power is applied, stepless variable speed can occur to the planet gear bracket. The stepless variable speed unit is especially suitable for being used as an automotive variable speed unit with hybrid power.

Description

technical field [0001] The invention relates to a continuously variable transmission device for full gear transmission, especially for mechanical vehicles with constant meshing gears, double hybrid power, constant speed drive of the main power, coordinated speed regulation of the auxiliary power, variable ratio width, and large transmission power. CVT. Background technique [0002] As we all know, the evaluation of the comprehensive performance of a car depends not only on the engine, but also depends on the quality of the transmission performance, engine coordination and dynamic regulation to a large extent; practice has proved that the continuously variable transmission (CVT) is characterized by its gradual, stable and accelerated The automatic control of the electronic measurement and control technology can maintain the optimal cooperation between the dynamic condition of the vehicle and the ideal working condition of the engine in time, thereby improving the fuel economy...

AI Technical Summary

Problems solved by technology

[0003] So far, various continuously variable transmissions have emerged one after another, but most of them have not been widely used in medium and large tonnage vehicles, and even many small tonnage vehicles have not been fully popularized due to reasons such as low transmission efficiency, complex structure, and high cost.

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