A multi-mode hydraulic-mechanical continuously variable transmission device

A continuously variable transmission, hydraulic machinery technology, applied in transmission, mechanical equipment, fluid transmission, etc., to achieve the effect of maintaining smooth speed switching, high transmission efficiency, and reducing impact

Inactive Publication Date: 2019-05-21
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single use of mechanical transmission or hydraulic transmission is difficult to perfectly meet the requirements of medium and large construction machinery for the transmission system

Method used

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  • A multi-mode hydraulic-mechanical continuously variable transmission device
  • A multi-mode hydraulic-mechanical continuously variable transmission device

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Embodiment Construction

[0015] Such as figure 1 and figure 2 As shown, a multi-mode hydraulic-mechanical continuously variable transmission device of the present invention includes a housing 7 and a double-planetary mechanical transmission and a hydraulic transmission arranged in parallel in the housing 7. A mode gear switching execution system that controls the individual speed change output of a planetary mechanical transmission, controls the single speed output of a hydraulic transmission, or controls the mixed speed output of a double planetary mechanical transmission and a hydraulic transmission.

[0016] The double-planetary mechanical transmission includes a front planetary row and a rear planetary row arranged in series through the same sun shaft 6; the end of the sun shaft 6 opposite to the rear planetary row is arranged outside the housing 7 and is used as an input shaft for transmission connection with the engine; The front planetary row includes a front sun gear 9 fixedly arranged on th...

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Abstract

The invention relates to the field of vehicle engineering transmission equipment, in particular to a multi-mode stepless speed change device for hydraulic machinery. The multi-mode stepless speed change device for the hydraulic machinery comprises a shell, a double-planet-row mechanical transmission and a hydraulic transmission, wherein the double-planet-row mechanical transmission and the hydraulic transmission are arranged in the shell in parallel; and a mode and gear switching execution system which is used for controlling independent gearshift output of the double-planet-row mechanical transmission, independent gearshift output of the hydraulic transmission or hybrid gearshift output of the double-planet-row mechanical transmission and the hydraulic transmission is further arranged inthe shell. The multi-mode stepless speed change device for the hydraulic machinery not only has large-range stepless speed control performance, but also can meet requirements for multiple modes when avehicle runs under different working conditions.

Description

technical field [0001] The invention relates to the field of vehicle engineering transmission equipment, in particular to a multi-mode hydraulic mechanical stepless transmission device. Background technique [0002] Hydraulic transmission has the advantages of convenient layout, high power density, output torque and speed are not affected by input speed, easy to realize stepless speed regulation and automatic control, etc., but at the same time, it has the disadvantages of low transmission efficiency, especially in high speed and low speed. In the transmission working condition, the deficiency of low transmission efficiency is more prominent. Gear mechanical transmission has the advantages of accurate and reliable transmission motion, constant instantaneous transmission ratio, compact structure, large transmission ratio, large transmission power and high transmission efficiency, but it is not easy to realize automatic transmission, let alone continuously variable transmissio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H47/04
CPCF16H47/04F16H2047/045
Inventor 曹付义李豪迪张风丽王浩然马可李金龙崔梦凯
Owner HENAN UNIV OF SCI & TECH
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