Novel crawler tractor power transmission system

Abstract

The invention discloses a novel crawler tractor power transmission system which comprises a front transmission shaft, a shunt box, a belt transmission system, a continuously variable transmission, anaxle box, driving wheels and a power output device. The power input end of the front transmission shaft is connected with external power, and the power output end of the front transmission shaft is connected with the shunt box; the shunt box is provided with an input shaft, an upper output shaft and a lower output shaft, and the upper output shaft is connected with the continuously variable transmission through the belt transmission system; the continuously variable transmission is connected with the axle box; a half shaft of the axle box is connected with the driving wheels on the two sides;and a lower output shaft of the shunt box is connected with a power output device and transmits power to a working device suspended by a tractor. The transmission system is split into several small-size assemblies connected through the transmission shaft or the belt, the manufacturing difficulty of the transmission system is reduced, and the maintenance convenience is greatly improved.

Description

technical field [0001] The invention relates to the technical field of tractor power transmission, in particular to a novel crawler tractor power transmission system. Background technique [0002] As the degree of agricultural mechanization is getting higher and higher, tractors, as a kind of agricultural machinery with multiple expanded uses, have increasingly broad market prospects. Tractors for agricultural production are agricultural machinery products that mainly provide power. Paddy field and dry land operations, supporting different farm tools, can complete operations such as plowing, rotary tillage, lifting and ditching. [0003] Tractors are divided into two categories: crawler tractors and wheeled tractors. Compared with wheeled tractors, crawler tractors have lower grounding specific pressure, and have the advantages of fast operation speed, high operation efficiency, and almost no damage to the bottom of paddy fields when operating in paddy fields. As farmers b...

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Problems solved by technology

[0004] However, the existing crawler tractor transmission systems are basically equipped with integral transmission boxes (derived from wheeled tractors), which require high precision parts and complicated manufacturing processes; , once the transmission box is damaged during the use of the vehicle, it is almost necessary to disassemble the entire vehicle during maintenance, and the transmission box is large in size and weighs several hundred kilograms, which makes it very difficult to disassemble the transmission box by manpower in the field and on the ground, and often requires the use of For construction machinery such as excavators, the maintenance process is complex, time-consuming and expensive, which causes great inconvenience to maintenance personnel and customers

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