Power transmission apparatus using planetary gear

Abstract

The present invention relates to a power transmission apparatus which includes a planetary gear set with a planetary carrier of which one side extending to form gear teeth, wherein rotating speed input from a driving power source is reduced and then input to one actuating means, rotating speed of a gear-shifting power source is input to another actuating means to achieve a plurality of gear shifts, generating power is obtained from an output shaft to store electricity to a storage battery, the stored electric energy is utilized as controlling energy for gear-shifting power so that a transmission input shaft can be easily controlled. The power transmission apparatus according to embodiments of the present invention includes an input shaft that has one end constantly connected to a driving power source to receive power from the driving power source, the input shaft having a driving gear fixed mounted thereon, a deceleration unit that is connected to the driving gear and reduces rotating speed of the input shaft, a planetary gear set that includes a first actuating means connected to the deceleration unit and receiving rotating speed of the deceleration unit, a second actuating means receiving power for gear shift, and a third actuating means generating output speed, a gear shift unit that is constantly connected to a gear-shifting power source to receive power for gear shift therefrom, the gear shift unit being coupled with the second actuating means to transfer the power for gear shift thereto; and an output shaft that is fixed to the third actuating means of the planetary gear set to transmit output speed, wherein a rotation axis of the second actuating means is perpendicular to a rotation axis of the deceleration unit, a torque control shaft is connected to the second actuating means to receive rotation force of the second actuating means through a power transferring means, a generator for generating electricity is connected to the torque control shaft, and a storage battery for supplying electricity to the gear-shifting power source is connected to the generator.

Description

TECHNICAL FIELD[0001]The invention relates generally to a power transmission apparatus using a planetary gear which may be employed in automobiles, vessels, windmills, and converter motors et cetera, more particularly to a power transmission apparatus that includes a planetary gear set with a planet carrier, one side of which is extended to form gear teeth, in which the rotating speed input from a driving power source is reduced and then input to one actuating means of the planetary gear set, the rotating speed of a gear-shifting power source is input to the other actuating means of the planetary gear set to achieve a plurality gear shifts, and power for generating electricity is obtained from an output shaft, the generated electricity is stored, the stored electric energy is utilized as control energy of the gear-shifting power source to control a transmission input shaft with easy.BACKGROUND[0002]Generally, a transmission is an apparatus that receives the input power from a drivin...

AI Technical Summary

Benefits of technology

The power transmission apparatus using a planetary gear of the invention allows for various forward and reverse gear shifts. It uses the same gear mechanisms for both forward and reverse gear shifts, making it easy to shift gears. The apparatus also allows for different rotating speeds for different devices, simplifying the construction and reducing production costs. The use of a separate braking system is unnecessary, as the gear-shifting power source can also perform braking duties. This reduces torque loss and minimizes slipping at connection points between the gear set and the power source.

Problems solved by technology

The manual transmission has high fuel efficiency but is difficult to manipulate, while the automatic transmission is easy to manipulate but has low fuel efficiency.

This results in weight increase of the automatic transmission, hence lowering the fuel efficiency.

Since a damper clutch is however disposed between the driving power source and the input shaft, it is not able to connect the additional devices to the input shaft.

Therefore space for the additional devices is insufficient.

According to the above methods, however, the torque of the driving power source is applied to the gear-shifting power source, which results in serious loss of the torque.

In addition, the rotating speed of the driving power source is directly input to the planetary gear set without decelerating of speed, which results in a problem that the gear-shifting is hard if the gear-shifting power source do not provides strong torque.

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