Title:
SELF-PROPELLING CRUSHER
Document Type and Number:
WIPO Patent Application WO/2004/052544
Kind Code:
A1
Abstract:
A self-propelling crusher, comprising a crushing device (20), a hydraulic driving device having a crushing device hydraulic motor (21) driving the crushing device (20), a first hydraulic pump (62) driving the crushing device hydraulic motor (21), and an engine (61) driving the first hydraulic pump (62), a pressure sensor (151) detecting the loading state of the crushing device (20), and a controller (84”) controlling the engine (61) so as to increase the rotational speed thereof based on the signals detected by the pressure sensor (151). Even when a heavy load is applied to the crushing device, the crushing efficiency thereof can be prevented from lowering.
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Inventors:
Tanaka, Masamichi (20-29-213, Kandatsuchuo 2-chome Tsuchiura-shi, Ibaraki, 300-0011, JP)
Shiba, Yoshimi (750-1, Takasai Shimotsuma-shi, Ibaraki, 304-0031, JP)
Shiohata, Tadashi (Chiyoda-house 9-305, 1828 Niihari, Chiyodamach, Niihari-gun Ibaraki, 315-0051, JP)
Hashimoto, Kentaro (20-29, Kandatsuchuo 2-chome Tsuchiura-shi, Ibaraki, 300-0011, JP)
Shiba, Yoshimi (750-1, Takasai Shimotsuma-shi, Ibaraki, 304-0031, JP)
Shiohata, Tadashi (Chiyoda-house 9-305, 1828 Niihari, Chiyodamach, Niihari-gun Ibaraki, 315-0051, JP)
Hashimoto, Kentaro (20-29, Kandatsuchuo 2-chome Tsuchiura-shi, Ibaraki, 300-0011, JP)
Application Number:
PCT/JP2003/015774
Publication Date:
June 24, 2004
Filing Date:
December 10, 2003
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (5-1 Koraku 2-chome, Bunkyo-ku, Tokyo, 112-0004, JP)
Tanaka, Masamichi (20-29-213, Kandatsuchuo 2-chome Tsuchiura-shi, Ibaraki, 300-0011, JP)
Shiba, Yoshimi (750-1, Takasai Shimotsuma-shi, Ibaraki, 304-0031, JP)
Shiohata, Tadashi (Chiyoda-house 9-305, 1828 Niihari, Chiyodamach, Niihari-gun Ibaraki, 315-0051, JP)
Hashimoto, Kentaro (20-29, Kandatsuchuo 2-chome Tsuchiura-shi, Ibaraki, 300-0011, JP)
Tanaka, Masamichi (20-29-213, Kandatsuchuo 2-chome Tsuchiura-shi, Ibaraki, 300-0011, JP)
Shiba, Yoshimi (750-1, Takasai Shimotsuma-shi, Ibaraki, 304-0031, JP)
Shiohata, Tadashi (Chiyoda-house 9-305, 1828 Niihari, Chiyodamach, Niihari-gun Ibaraki, 315-0051, JP)
Hashimoto, Kentaro (20-29, Kandatsuchuo 2-chome Tsuchiura-shi, Ibaraki, 300-0011, JP)
International Classes:
B02C21/02; B02C23/00; B02C25/00; B02C21/00; B02C23/00; B02C25/00; (IPC1-7): B02C21/02; B02C25/00
Attorney, Agent or Firm:
Kasuga, Yuzuru (7th Fl, Kyodo Bldg.-Shinkodenmacho 1-3, Nihonbashi-Kodenmach, Chuo-ku Tokyo, 103-0001, JP)
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