Nine-gear double-clutch gearbox for all-wheel driven vehicle

Abstract

The invention discloses a nine-gear double-clutch gearbox for an all-wheel driven vehicle. The nine-gear double-clutch gearbox for the all-wheel driven vehicle comprises an inner shaft; a first clutchand a second clutch are connected to two ends of the inner shaft; a first input shaft and a second input shaft are coaxially arranged with the inner shaft; multiple odd driving gears are arranged onthe first input shaft to realize odd gears from a first gear to a ninth gear; multiple even driving gears are arranged on the second input shaft to realize even gears from a second gear to an eighth gear; multiple odd driven gears are arranged on a first intermediate shaft and a second intermediate shaft; multiple even driven gears are arranged on the first intermediate shaft and the second intermediate shaft; a first output gear is connected to the first intermediate shaft; a second output gear is connected to the second intermediate shaft; and an output device is provided. Clutches of the gearbox are separately arranged to increase the contact surfaces thereof, so that the higher torque can be transferred, and the heat is easily dissipated; and the clutches are positioned at two ends ofthe gearbox to achieve disassembly in maintenance.

Description

technical field [0001] The invention relates to the field of gearboxes, in particular to a nine-speed dual-clutch gearbox for all-wheel drive vehicles. Background technique [0002] Internal combustion engines are widely used in vehicles, and have output characteristics of low torque at low speeds and high torque at medium and high speeds, while the driving characteristics of vehicles require high torque at low speeds and low torque at high speeds. In order to solve this contradiction, it is necessary to install a transmission mechanism between the engine and the wheels, so that the transmission ratio of the output shaft and the input shaft can be changed in stages, so as to meet the driver's control requirements for vehicle speed regulation under different road surfaces and load conditions. , to realize the forward, reverse or neutral position of the vehicle. According to the mode of operation, it is divided into manual transmission and automatic transmission. [0003] Th...

AI Technical Summary

Problems solved by technology

[0005] Currently, the dual-clutch gearboxes used in passenger cars generally have 6 or 7 forward gears, for example, Chinese invention patent publication numbers CN 102047003 A, CN 106168271 A, and CN 108027022 A; the two clutches of the above-mentioned prior art are generally arranged in At the same time, the structure is complex, it cannot transmit large torque, and it is not conducive to heat dissipation; commercial vehicles usually need to lift and unload cargo boxes, and other functional devices provide hydraulic power sources, and the gearbox needs to have abundant power take-off ports (PTO); all-wheel drive vehicles The gearbox is required to have forward and reverse power output, and in order to prevent power circulation and achieve fuel economy in full-time all-wheel drive, the front and rear outputs are required to have a differential function

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