| 摘要 |
PURPOSE: A shuttle valve variable structure of an agricultural work vehicle is provided to control the pressure of oil by passively varying an oil path of a shuttle valve through the operation of a lever. CONSTITUTION: A hydraulic line is comprised of a pump, a modulator valve, a machinery shuttle valve, and a hydraulic clutch. A manual changing lever combination(160) is connected to a sleeve of the machinery shuttle valve. The machinery shuttle valve passively controls the pressure of oil provided to the hydraulic clutch through the operation of the manual changing lever combination. A handle(161) is driven by a user. A lever(162) is fixed to an end extended from the handle. An operation rod is movably installed on the lever. A converting bracket is connected to the operation rod and converts a linear motion of the operation rod into a rotation motion.
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