Hydraulic-mechanical mixed four-gear transmission method

Abstract

The invention discloses a hydraulic-mechanical mixed four-gear transmission method. A hydraulic-mechanical mixed four-gear gearbox is adopted for implementing gear-shifting transmission, power is transmitted to a transmission input shaft of the hydraulic-mechanical mixed four-gear gearbox through a clutch, a gear-shifting driving gear is engaged with a gear-shifting driven gear, a gear-shifting spline hub is combined with a combining sleeve, and then four-gear transmission is achieved; when a mechanical part is adopted for transmitting power, a static hydraulic stepless speed change device is in a zero-output state; when a crawler belt type agricultural mechanical equipment needs large torque to drive crawling, the mechanical part is set to be in zero gear, power is transmitted to an input shaft of the static hydraulic stepless speed change device through the transmission input shaft and then input into the static hydraulic stepless speed change device, and the static hydraulic stepless speed change device converts mechanical energy into hydraulic energy; meanwhile, the static hydraulic stepless speed change device converts the hydraulic energy into mechanical energy which is output to a driving intermediate shaft through an output shaft of the static hydraulic stepless speed change device, and the intermediate shaft drives an intermediate shaft transmission gear through a spline to drive the crawler belt type agricultural mechanical equipment.

Description

technical field [0001] The invention relates to the technical field of power transmission of agricultural machinery, in particular to a four-speed transmission method of machine-liquid mixing. Background technique [0002] In recent years, agricultural machinery technology has developed very rapidly, and a large number of crawler agricultural machinery equipment is used in the agricultural production environment. However, if the crawler agricultural machinery equipment also adopts high-power full hydraulic drive, it will inevitably lead to complex structures and high prices. , Difficult maintenance, high cost of use, and extremely high energy consumption; in order to meet the needs of agricultural operations, crawler agricultural machinery equipment usually needs to have an in-situ steering function, which can reduce the area of ​​missed tillage at the corners of the farmland. At present, the crawler agricultural machinery equipment on the market does not have the function o...

AI Technical Summary

Problems solved by technology

[0002] In recent years, agricultural machinery technology has developed very rapidly, and a large number of crawler agricultural machinery equipment is used in the agricultural production environment. However, if the crawler agricultural machinery equipment also adopts high-power full hydraulic drive, it will inevitably lead to complex structures and high prices. , difficult maintenance, high cost of use, and high energy consumption; in order to meet the needs of agricultural operations, crawler agricultural machinery equipment usually needs to have an in-situ steering function, which can reduce the missed tillage area at the corner of the farmland

At present, the crawler agricultural machinery equipment on the market does not have the function of in-situ steering, and a hydraulic motor specially used for in-situ steering is often installed, which not only increases the cost, but also makes the failure rate of the gearbox higher; when the crawler When the traditional agricultural machinery equipment needs to be driven by a large torque to crawl, the pure mechanical transmission cannot meet its driving needs, and the continuously variable transmission in the hydrostatic drive device has a large loss of working efficiency, long-term operation, and too much energy consumption, which is against the modern green environmental protection and energy saving. The purpose of development, and long-term high-load continuous operation is likely to cause high-temperature carbonization of hydraulic oil, increased internal leakage, resulting in reduced efficiency of high-temperature continuous operation, short life of static hydraulic devices, and reduced travel efficiency

Images