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Accordant junction differential planetary gear train indefinitely variable transmission system

A technology of planetary gear train and stepless speed change, which is applied in the direction of gear transmission, transmission, transmission control, etc., can solve the problems of complex structure, narrow speed range, low transmission efficiency, etc., and achieve high mechanical efficiency and short transmission chain , Improve the effect of safety performance

Inactive Publication Date: 2009-10-14
MILITARY TRANSPORTATION UNIV PLA
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, these continuously variable transmission devices generally have problems such as narrow speed range, complex structure and low transmission efficiency.

Method used

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  • Accordant junction differential planetary gear train indefinitely variable transmission system
  • Accordant junction differential planetary gear train indefinitely variable transmission system
  • Accordant junction differential planetary gear train indefinitely variable transmission system

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] Such as figure 1 The converging differential planetary gear train CVT transmission system of the present invention shown is composed of an input shaft 1, a flow splitting gear device 11, a differential planetary gear train device 13, a speed regulating transmission device 12 and the like. The shunt gear device is composed of a pair of constant speed ratio first shunt gear 2 and second shunt gear 3; differential planetary gear train 13 is composed of four parts: planetary carrier 4, sun gear 5, planetary gear 6 and output ring gear 7 , A lock-up clutch 14 is arranged between the output ring gear 7 of the planetary gear train and the planet carrier 4;

[0012] The first splitter gear 2 is sleeved on one end of the input shaft 1, and the other end of the input shaft 1 is connected with the planet carrier 4 of the planetary gear train tra...

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Abstract

The invention discloses an accordant junction differential planetary gear train indefinitely variable transmission system which comprises a differential planetary gear train transmission device and a first distributary gear sheathed on one end of an input shaft; another end of the input shaft is connected with a planet carrier, one end of a gear shaft of a second distributary gear is connected with the input shaft of an electric generator or a hydraulic oil pump; an output voltage signal of the electric generator or an output hydraulic signal of the hydraulic oil pump is sent to a speed setting controller which receives the signals output by the electric generator or the hydraulic oil pump, compares the signals with a given value, and outputs a control signal to a motor or a hydraulic motor; the motor or the hydraulic motor receives the control signal from the speed setting controller, the output shaft of the motor or the hydraulic motor is connected with the gear shaft of a sun gear; and a lockup clutch is arranged between an output geared ring and the planet carrier. The system has high mechanical efficiency, can realize high power transmission, and is provided with wider transmission ratio continuous variation range and steady speed change.

Description

technical field [0001] The present invention relates to a continuously variable speed transmission device for a vehicle, in particular to a planetary carrier of a differential planetary gear train and a sun gear controlled by an electric motor (or hydraulic motor) to jointly input, converging and converging in the differential planetary gear train A differential planetary gear train type vehicle continuously variable transmission system that realizes ring gear output. Background technique [0002] Currently, the continuously variable transmissions widely used in vehicles mainly include metal belt, metal chain transmission and hydromechanical variable speed transmission. However, these continuously variable transmission devices generally have problems such as narrow speed range, complex structure and low transmission efficiency. Contents of the invention [0003] The object of the present invention is to address the deficiencies of the prior art, and provide a confluence d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/00F16H3/76
Inventor 王天颖贾巨民高波
Owner MILITARY TRANSPORTATION UNIV PLA
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