Komatsu Corporation

Kabushiki Kaisha Komatsu Seisakusho

Yukio Tamura

Toru Nakayama

Satoru Koyanagi

Katsuhiro Ikegami

Yasutaka Nishida

Yuji Ozawa

Masashi Kaminishi

Masaho Yamaguchi

Koji Ogaki

Toshio Kitani

Motoki Kurohara

Katsu Hirosawa

Mitsuhisa Sakae

Yutaka Kato

Yoshimitsu Yuzawa

Yoshinori Takata

Mikihisa Takiguchi

Control circuit of transportable crusher

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

Self-propelled crushing machine

Method of and apparatus for driving a crushing machine

Crusher system drive control apparatus for a traveling type crushing

Self-advancing crushing machine

A track-type vehicle undercarriage comprising a track frame, a recoil device mounted on the track frame, a mount member fixedly connected to the recoil device and biased forwardly thereby, an idler rotatably mounted on the mount member, a sprocket, and an endless track of linked together track shoes mounted around the idler and the sprocket. A support member is adjustably mounted on the mount member and a support rail is pivotally mounted at one end thereof on the support member. A separate support device is mounted on the track frame for supporting the other end of the support rail.

Track-type vehicle undercarriage

A track-type vehicle undercarriage comprising a track frame, a carrier rail mounted on the track frame, a track rail fixedly secured to the track frame underneath thereof, a recoil device mounted on the track frame, a support member fixedly connected to the recoil device and biased forwardly thereby, a front rail rotatably mounted on the support member, a sprocket, and an endless track of linked together track shoes mounted on the carrier rail, front rail, track rail and sprocket.

A method of forming a plurality of horizontal barriers in situ at a preselected depth beneath the soil surface and in a plane substantially parallel to the soil surface so as to be coextensive with a desired area, the barriers being made of a thermoplastic material such as asphalt for example, and forming further barriers joined to the horizontal barriers and extending vertically or obliquely toward the soil surface in order to surround the above-mentioned area, thereby improving soil having a poor water retention property. The method further comprises the steps of filling up chambers in a plow moving in the soil with the barrier forming material in the liquid form, leaking the material out of the chambers through passages of a given gap, and spreading the formed film laterally uniform by an ironing portion connected with the plow near the passages so as to render the formed water barrier uniform in thickness and free from apertures.

Method of forming a subterranean water barrier and a plow for use

Growing community of inventors

Kawasaki, Japan

Yukio Tamura