| 摘要 |
The present invention relates to an impact crusher having crushing blades which has enhanced crushing function which finely crushes crushed materials while having long lifetime by making the crushing blades in a trapezoid form and facilitates replacement of the crushing blades by unlocking bolts after the crushing function is reached to a critical point. In the present invention, insertion bars (20) are inserted into insertion grooves (15) of a rotor plate (12) and the rotor (10) is rotated while crushing the crushed materials. In the impact crusher having crushing blades, four crushing blade fixing units (100) are installed in crossing points of the horizontal and perpendicular lines along the cylindrical surface of the rotor plate (12) and an insertion protrusion (11) is formed in a longitudinal direction on one surface in the center of the crushing blade fixing unit and a plurality of penetration holes (111) is formed on the insertion protrusions (110) with a predetermined interval and insertion grooves (210) are formed on a crushing blade (200), which is hung in the insertion protrusions (110) and fixed by an interlocking tool, in the longitudinal direction. The crushing blade is formed in the trapezoid form by looking from the side. |
