| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibrating screen discharging a large lump removed from a supplied raw material to a main screen without loading a driving device. SOLUTION: The vibrating screen includes: a body frame 7; the main screen 15 supported through an elastic member 19 on the body frame 7 in such a state that a sieve surface is inclined; a vibration exciter 20 provided on the main screen 15; and a pre-screen 22 supported through an elastic member 23 on the body frame 7 in such a state that the sieve surface is inclined so as to be positioned on the main screen 15. An external force receiving member 26 for transmitting external force from a bucket B of a charging heavy machine S to the vibrations of the pre-screen 22 is provided on the screen frame 24 of the pre-screen 22. COPYRIGHT: (C)2011,JPO&INPIT
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