A housing, composed of large-area plates, of a heavy crusher for
the treatment of rock or recycling material is held together with
simple lug and cotter connections instead of by welding or screw
unions. This allows transportation in the knocked-down state, erection
by unskilled workers on the site and use and - for later relation
- simple disassembly.
A crusher comprises first and second rotating crusher bodies installed
on two rotatably supported shafts spaced apart from each other,
and having crusher blades provided on their outer peripheries. A
first compression board is positioned at one side of both of the
crusher bodies, forming a crushing passage with one side of these
rotating crusher bodies, and is capable of compressing an object
passing through this crushing passage. A gate board is located below
the first compression board and opens and closes the crushing passage.
A jaw crusher is equipped for the first time with a horizonal crushing
chamber and, for replacement of gravity for the conveyance of the
material being crushed through the crushing chamber, with an abutment
comprising a chain conveyor. The mechanism for applying the crushing
force on the jaw rocker (10) is selected so that the action is equivalent
to that of a double bell-crank jaw crusher even for hardest material
and in particular for recycling material such as reinforced concrete.
A novel supporting structure for the crushing head of a cone crusher
in which an eccentric rotating in a frame and the crushing head
gyrating in the inner periphery of the eccentric are movable up
and down by hydraulic pressure, characterized in that a cylindrical
socket is inserted in a sleeve of the frame which is slidable up
and down while the eccentric and the crushing head are supported
by a hydraulic mechanism mounted on the upper end of the sleeve,
thereby reducing the overall height of the cone crusher.