Transmission system of a cross-flow multi-drum combine harvester

Abstract

The invention relates to a transmission system of a tangential transverse flow multiple-roll combined harvester. The transmission system plays the effect through power distribution of an intermediate shaft, and the whole transmission system is divided into three portions. The first portion is a power distribution system including a conveying groove, a tangential flow roller, a first transverse axial flow roller, a second transverse axial flow roller and a grass chopping roller, the second portion is a power distribution system including a fan, a horizontal grain conveying auger, a horizontal impurity and residual auger, a vibrating screen, a horizontal grain unloading auger, a grain lifting and transporting auger, an impurity-and-residual lifting and transporting auger and a grain unloading and discharging auger, and the third portion is a power distribution system including a header auger, a cutting-off tool and a reel. The transmission system of the whole combined harvester is 'modularized', and a proper transmission path and a transmission mode are selected according to position relation and motion parameters of working parts, so that the power transmission path arrangement of the whole machine can be reasonable, and the whole machine can be simple and reliable in transmission and easy to maintain.

Description

technical field [0001] The invention relates to a transmission system of a combine harvester, in particular to a transmission system of a crawler self-propelled cross-flow multi-drum combine harvester. Background technique [0002] Now the application of combine harvesters in our country is very common, and with the progress and development of science and technology, the technology of combine harvesters is becoming more and more mature. However, in recent years, with the continuous expansion of rice planting area, the increase of yield and the popularization of high-yield rice, new requirements have been put forward for combine harvesters. The direction of large feeding amount is developed to improve productivity. At present, the threshing and separating devices with transverse axial flow or combination of tangential flow and transverse axial flow in the market in our country are all single drum or two drums. It is prone to clogging when it is fed with lush rice, and canno...

AI Technical Summary

Problems solved by technology

The engine is the core of the power of the working parts of the whole machine. How to reasonably distribute the power of the engine to each working part is the key to the design of the entire transmission system. At present, the traditional models all adopt the single-side transmission method. Form of transmission, the transmission distance is long, and it needs to increase the transition transmission to realize it, which makes the transmission route more complicated and changeable, and also increases the manufacturing cost virtually, and at the same time, the long-distance transmission increases the power loss in the transmission; and While increasing the transition transmission, the reliability of the transmission is also reduced, which will directly affect the harvesting efficiency; and this form of transmission structure will inevitably increase the noise and vibration due to the long transmission distance and many stages.

On the other hand, the transmission of combine harvesters in our country mostly adopts chain drive or belt drive transmission mode, and chain drive and belt drive have their own characteristics. The characteristics of chain drive are definite transmission ratio, high transmission precision, high speed, The torque is larger than that of the belt drive, and the service life is long, but the chain is not easy to adjust and easy to fall off after the chain is worn

Belt transmission is characterized by low transmission noise, large transmission distance, and overload protection, but it requires large tension, elastic sliding and slipping, which reduces transmission efficiency and cannot guarantee accurate transmission ratio.

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