Double-wet type dead axle and planet compound type mechanical speed change mechanism used for high-speed vehicle

Abstract

The invention relates to a double-wet type dead axle and planet compound type mechanical speed change mechanism used for a high-speed vehicle, belonging to the technical field of vehicle engineering. According to the double-wet type dead axle and planet compound type mechanical speed change mechanism, the scheme of the dead axle and planet compound type mechanical speed change mechanism is proposed according to a design concept of adopting the mixed matching of double-wet type gear shift control elements to carry out quick gear shift, wherein the speed change mechanism is provided with six forward gears and two reverse gears; an input structure of the speed change mechanism is adjusted to adapt to the longitudinal arrangement or the transverse arrangement of a vehicle power device, and an output structure of the speed change mechanism is adjusted to adapt to different drive requirements of a crawler-type vehicle or a multi-wheel drive wheel type vehicle; and a gear shift process of the speed change mechanism is guaranteed to be stable and quick by adopting the double-wet type gear shift control elements to carry out direct gear shift. The dead axle and planet compound type mechanical speed change mechanism has the characteristics of high transmission efficiency, high power density, simple structure, and the like and can be used for meeting the use requirements of high-speed high-mobility vehicles.

Description

technical field [0001] The invention relates to a mechanical transmission mechanism applied to high-speed vehicles, in particular to a double-wet fixed-axis planetary composite mechanical transmission mechanism, which belongs to the technical field of vehicle engineering. Background technique [0002] The transmission system is located between the power unit and the drive wheels, and it plays an irreplaceable role in realizing various maneuvering functions of the vehicle through control. The speed change mechanism is the core part of the transmission system, and the development of a speed change mechanism with high transmission efficiency, high power density and high reliability has always been the pursuit goal in the field of vehicle engineering technology. In the future, high-mobility vehicles urgently need advanced transmission mechanisms with high speed, wide transmission range, high transmission efficiency, and high power density. Although the widely used multi-degree-...

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Problems solved by technology

In the past 10 years, my country has made remarkable achievements in the fixed-axis multi-degree-of-freedom comprehensive transmission of tracked vehicles, and mature products have been put into use in the army, but the research and development of tracked vehicle planetary multi-degree-of-freedom comprehensive transmission has been slow , mainly due to the constraints of the engineering design and manufacturing foundation of the complex planetary transmission mechanism, there is no corresponding finalized product for the army to use, and there is no high-performance multi-degree-of-freedom wet-type shifting control element for wheeled vehicles. The design scheme of the transmission system; my country's engineering research on electric transmission, hybrid drive transmission, and hydrostatic drive transmission has just started, and it is far from meeting the practical requirements of finalization

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