Three-clutch gearbox for loader

Abstract

The invention relates to a three-clutch transmission of a loading machine. The three-clutch transmission comprises a box body, a shaft I, a shaft II, a shaft III, a shaft IV, a shaft V, a shaft VI and a shaft VII, wherein the shaft I, the shaft II, the shaft III, the shaft IV, the shaft V, the shaft VI and the shaft VII are parallel, a first wet clutch (1) and a second wet clutch (2) are arranged on the shaft II, a third wet clutch (3) is arranged on the shaft III, a fourth wet clutch (4) and a fifth wet clutch (5) are arranged on the shaft V, and a sixth wet clutch (6) and a seventh wet clutch (7) are arranged on the shaft VI. Hydraulic clutches replace hydraulic torque converters, so that transmission efficiency is increased, energy consumption is reduced, and automated control is achieved conveniently.

Description

technical field [0001] The invention relates to a three-clutch gearbox of a loader. It is mainly used in loaders with more than two tons. Background technique [0002] At present, the transmission of large and medium-sized loaders generally adopts a hydraulic torque converter plus a power shift transmission. Due to the relatively low transmission efficiency of the hydraulic torque converter, the energy consumption is relatively high, and part of the energy consumption is converted into heat during use, which increases the temperature of the gearbox and reduces the service life of the gearbox oil. [0003] The Chinese invention patent with the authorized announcement number CN102146987B discloses a "engineering machine equipped with a power shift gearbox". Due to its own structural design, there are four defects in use: first, the gearbox must obtain a relatively low Ideal speed requires a large enough transmission ratio. Due to the structure itself, in order to obtain the...

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Problems solved by technology

Due to the relatively low transmission efficiency of the hydraulic torque converter, the energy consumption is relatively high, and part of the energy consumption is converted into heat during use, which increases the temperature of the gearbox and reduces the service life of the gearbox oil.

[0003] The Chinese invention patent with the authorized announcement number CN102146987B discloses a "engineering machine equipped with a power shift gearbox". Due to its own structural design, there are four defects in use: first, the gearbox must obtain a relatively low Ideal speed requires a large enough transmission ratio

Second, there are also certain restrictions on the speed ratio of the drive axle equipped with the construction machine, and the speed ratio generally does not exceed 1:21.

In order to solve this problem, the meshing delay system is adopted to solve the problem of meshing impact, but the shifting time is prolonged, which affects the working efficiency of the engineering machine

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