Komatsu Corporation

Kabushiki Kaisha Komatsu Seisakusho

Satoru Koyanagi

Katsuhiro Ikegami

Toru Nakayama

Yukio Tamura

Kazuyuki Yamazaki

Masaho Yamaguchi

Yuji Ozawa

Yukio Moriya

Yasutaka Nishida

Tooru Nakayama

Motoki Kurohara

Toshio Kitani

Tetsuya Fujimura

Toru Hishiyama

Masayuki Nagahama

Kazuhiro Yoshida

Mitsunobu Yamada

Mitsuhisa Sakae

Teruo Nakahara

Hiroshi Shimizu

Mikihisa Takiguchi

Yoshimitsu Yuzawa

The present invention provides a self-propelled crushing machine in which a crushed material having a widely desired grain size can be obtained, a degree of freedom for automatically controlling a rotary tub and a rotary crusher can be preferably improved, and a crushing having a high efficiency can be performed. Accordingly, in a self-propelled crushing machine in which a rotary crusher ( ) and a rotary tub ( ) for introducing a material to be crushed thrown from an outer portion to the rotary crusher are provided on a self-propelled truck ( ), and the material to be crushed is crushed by the rotary crusher and freely discharged to the outer portion, there are provided target crushing rotational speed setting means ( ) for setting a target crushing rotational speed (Nhm) of the rotary crusher ( ), actual crushing rotational speed detecting means ( ) for detecting an actual crushing rotational speed (Nh) of the rotary crusher, crusher drive means ( ) for setting the rotary crusher to be freely rotated, and control means ( ) for inputting a target crushing rotational speed (Nhm) from the target crushing rotational speed setting means, inputting the actual crushing rotational speed (Nh) from the actual crushing rotational speed detecting means and outputting a crushing rotation control signal (Nhn) for maintaining a relation Nh&minus;Nhm&equals;0 to the crusher drive means by comparing them.

Self-propelled crushing machine

A mobile crusher, which has a high-quality controlling function enabling an efficient production, and which is capable of preventing the crusher itself from being damaged, is provided. For this purpose, a mobile crusher having a feeder ( ) and a crusher member ( ) which are set drivably on a mobile vehicle body ( ), includes means ( ) for detecting an amount of a material to be crushed, which detects an amount (H) of a material ( ) to be crushed inside the crusher member ( ), and control means ( ) for receiving the amount H from the means ( ) for detecting the amount of the material to be crushed and controlling a driving speed V of the feeder ( ) changeably based on the reception amount H.

Mobile crusher

A self-propelling crushing machine comprises a machine body ( ) provided with a travelling body ( ); a hopper ( ), a feeder ( ), a selective feeder ( ) and a crusher ( ) which mounted to the machine body; a conveyer ( ) disposed below the machine body; and a controlling device for independently controlling the feeder, the selective feeder, the crusher and the conveyer, wherein the feeder conveys a material to be crushed in the hopper to the selective feeder, the selective feeder selects the material to be crushed conveyed by the feeder so as to fall down soil, shingle and the like and convey large rock to the crusher, and the conveyer discharges the selected soil, shingle and the like and material pieces crushed by the crusher.

Mobile crushing machine

The present invention provides a self-propelled crushing machine in which a crushed material having a widely desired grain size can be obtained, a degree of freedom for automatically controlling a rotary tab and a rotary crusher can be preferably improved, and a crushing having a high efficiency can be performed. Accordingly, in a self-propelled crushing machine in which a rotary crusher (,) and a rotary tab (,) for introducing a material to be crushed thrown from an outer portion to the rotary crusher are provided on a self-propelled truck (,), and the material to be crushed is crushed by the rotary crusher and freely discharged to the outer portion, there are provided target crushing rotational speed setting means (,) for setting a target crushing rotational speed (Nhm) of the rotary crusher (,), actual crushing rotational speed detecting means (,) for detecting an actual crushing rotational speed (Nh) of the rotary crusher, crusher drive means (,) for setting the rotary crusher to be freely rotated, and control means (,) for inputting a target crushing rotational speed (Nhm) from the target crushing rotational speed setting means, inputting the actual crushing rotational speed (Nh) from the actual crushing rotational speed detecting means and outputting a crushing rotation control signal (Nhn) for maintaining a relation Nh&minus;Nhm&equals;0 to the crusher drive means by comparing them.

Control circuit of transportable crusher

Control apparatus for soil improvement machine

The present invention is a mobile crusher and a method for controlling the same, wherein the most suitable amount of crushed substances can be always secured so as to obtain crushed substances having a desired particle size distribution. To this end, the crusher mechanism includes an actual rotational speed changing means (1, 2, 3); an actual rotational speed detecting means (4); a rotational speed setting means (7) for setting at least one target rotational speed Nm for the crusher mechanism (13) and for setting, for each target rotational speed Nm, a rotational speed Na indicating a starting of supplying raw materials and a rotational speed Nb indicating a stopping of the supplying of raw materials; and a control means (6) for controlling the crusher mechanism such that an actual rotational speed N coincides with the target rotational speed Nm, starting the supplying of raw materials from a raw material supply device (14) when the actual rotational speed N increases to a rotational speed Na, and stopping the supplying of raw materials when the actual rotational speed N decreases to the rotational speed Nb.

Mobile crusher and crusher control method

Crushing machine control system for a self-traveling crushing machine

Method of and apparatus for driving a crushing machine

When a longitudinal straight traveling mode position A, an oblique traveling mode position B, a transverse traveling mode position C, or spin turning mode position D is selected by a traveling mode changeover switch 21, a signal corresponding to the selection is input to a controller 27. The controller outputs signals to turning actuators 15a and 15b for orienting driving wheels 11a and 11b toward the selected position. With this signal, the turning actuators 15a and 15b cause turning of the driving wheels 11a and 11b. At the same time, turning angle detection sensors 16a and 16b input signal indicative of turning angle of the driving wheels. When the turning angle becomes coincident with a preliminarily set angle, a signal for terminating turning is output to the turning actuators 15a and 15b. By this control, turning action of the turning actuators 15a and 15b is terminated with setting the driving wheels 11a and 11b at the position of the selected orientation.

Operation control system for traveling vehicle

Managing system for construction vehicles

Growing community of inventors

Tokyo, Japan

Satoru Koyanagi