The present invention provides an agricultural working machine for driving a crawler by using a pair of hydraulic motors. The agricultural working machine of the present invention uses a pair of hydraulic motors (42, 44) to drive a pair of crawlers. Further, one main shift lever (20) for performing forward and backward movement by using the hydraulic motors is installed to be rotatable in the forward and backward directions, and one steering lever (22) for performing steering by using the hydraulic motors is installed to be rotatable in the left and right directions. A control unit (12), which detects movement of the main shift lever (20) and the steering lever (22), controls the amount and direction of oil provided to the pair of hydraulic motors (42, 44) through a hydraulic controller (50) to perform forward and backward movement and steering. In addition, in a driving state, the control unit performs control of the hydraulic controller with respect to a sensing signal of a second position sensor, and in a stop state, the control unit does not perform control of the hydraulic controller with respect to the sensing signal of the second position sensor. Therefore, the present invention has a simple structure unlike the prior art using a transmission and a clutch.

    본 발명은 한 쌍의 유압모터를 이용하여 크롤러를 구동시키는 농업용 작업기를 제안하고 있다. 본 농업용 작업기는, 한 쌍의 크롤러를 구동시키기 위하여, 한 쌍의 유압모터(42,44)를 이용하고 있다. 그리고 유압모터를 이용하여 전후진을 수행하기 위한 하나의 주변속레버(20)가 전후 방향으로 회동 가능하게 설치되고, 유압모터를 이용하여 조향을 수행하기 위한 하나의 스티어링레버(22)가 좌우 방향으로 회동 가능하게 설치되어 있다. 이러한 주변속레버(20)와 스티어링레버(22)가 움직이는 것을 감지하는 제어부(12)는, 유압컨트롤러(50)를 통하여 한 쌍의 유압모터(42,44)로 제공되는 오일의 양 및 방향을 제어함으로써, 전후진 및 조향을 수행할 수 있도록 제어한다. 그리고 주행상태에서 제어부는 제2위치 감지센서의 감지신호에 대하여, 유압컨트롤러의 제어를 수행하고, 정지상태에서 제어부는 제2위치 감지센서의 감지신호에 대하여 유압컨트롤러의 제어를 수행하지 않는다.


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    Title :

    Agricultural working machine using hydraulic moters


    Additional title:

    유압모터를 이용하는 농업용 작업기


    Contributors:
    KANG YOUNG SUN (author) / KWON SEUNG GUI (author) / HONG YI SU (author) / NAM YO SANG (author)

    Publication date :

    2021-02-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    A01B SOIL WORKING IN AGRICULTURE OR FORESTRY , Bodenbearbeitung in Land- oder Forstwirtschaft / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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