CONTROLLER FOR SERVICE MACHINE FOR POWER SHOVEL

摘要

PURPOSE:To improve the efficiency of work, by arranging an arithmetic means computing the respective rotational angles of a bucket, an arm, and a boom on every excavating section, an arithmetic means computing discharge command to each service machine, and an arithmetic means keeping and varying a distribution ratio. CONSTITUTION:From the detected value of an angle detecting means, an excavation starting position is found, and the position of a locus set by a first arithmetic means, to a car body is gradually computed. At the computed position, a bucket is put in a set posture, and the respective rotational angles gamma, beta, alpha of the bucket, an arm, and a boom on every excavating section required for moving a bucket cutting edge to a following desired position in order are found. Besides, by a second arithmetic means, from the found rotational angles gamma, beta, alpha, the distribution ratio of pressure oil discharge fed to each service machine is determined, and discharge command is computed. Then, by a third arithmetic means, the output of the discharge command keeping the distribution ratio and varying the sum of the discharge command is directed to a driving system. As a result according to the tread angle of an operating pedal, the speed of the service machine can be arbitrarily varied, and the service machine can be driven at a desired speed.