Automatic gearbox for electric mini-truck

Abstract

The invention belongs to the technical field of gearboxes, particularly relates to a gearbox of reverse input agricultural equipment and discloses an automatic gearbox for an electric mini-truck. The automatic gearbox for the electric mini-truck mainly comprises a clutch, a gearbox shell, a first shaft, a reverse idler shaft, a first-speed driven gear, a first-and-reverse gear hub, a reverse driven gear, a second-speed driven gear, a second-and-third speed gear hub, a third-speed driven gear, a second shaft, a first flange plate, a differential assembly, a second flange plate, a movable gear and the like, wherein the first shaft and the second shaft are sequentially arranged inside the gearbox shell of a hollow structure from bottom to top; a reverse driving gear, a first-speed driving gear, a second-speed driving gear and a third-speed driving gear are sequentially and fixedly connected to the portion, in the gearbox shell, of the first shaft from left to right; and the second shaft is sequentially provided with the reverse driven gear, the first-and-reverse gear hub, the first-speed driven gear, a vertical differential connection shaft, the second-speed driven gear, the second-and-third speed gear hub and the third-speed driven gear. According to the automatic gearbox for the electric mini-truck, the gear shifting operation is easy and convenient, the gear shifting force is small, gear distribution and gear speed are reasonable, the safety performance is good, reliability is high, and the service life is long.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of gearbox equipment manufacturing, and relates to an automatic gearbox, in particular to an automatic gearbox for electric mini trucks. [0003] Background technique: [0004] The gearbox is an essential part of the vehicle. It is used to change the speed and torque from the engine. It can fix or step by step to change the transmission ratio of the output shaft and the input shaft. Most of the transmission mechanisms use ordinary gear transmission, and some use planetary gear transmission. Ordinary gear transmission transmission mechanisms generally use slip gears and synchronizers; the functions of the transmission include: changing the transmission ratio to meet the traction requirements of different driving conditions The engine works as far as possible under favorable working conditions to meet the possible driving speed requirements; to achieve reverse driving, to meet the needs of the car in re...

AI Technical Summary

Problems solved by technology

[0005] Existing domestic trucks mainly use manual transmissions, which have the following defects: Too many gears make the main structure of the transmission too complicated, which leads to high production costs, and the manual transmission force is relatively heavy, and the gear transmission efficiency is relatively high. Low; many gears are not in line with the working habits of domestic staff, so that staff often appear out of gear or messy gears during the shifting operation

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