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Malfunctions of sliding bearings of gyratory crushers used in crushing
stone are anticipated by providing sensors in connection to bearing
parts, by means of which sensors it is possible to observe increases
in friction forces. A beginning bearing damage can be detected by
means of sensors at such an early stage, that extensive damage to
bearings and to other parts of the crusher can be prevented.
A rock crusher of the gyratory cone type having a mainframe structured
to be exceptionally strong yet lighter and less costly to manufacture.
A tapered spindle bolted to mainframe, is drilled with multiple
oil holes, is hollow for circulating heating/cooling fluid, and
supports an adjustable thrust bearing. An eccentric member journals
on spindle; eccentric has outer taper offset and canted relative
to inner taper, and each taper has concentric cylinderical extensions;
A gyrating conical member journals on eccentric. Said thrust bearing
having spherical surfaces supports conical member on said spindle.
A double reduction gear train transfers power to eccentric. Flow
dividers direct lubricant to specific multiple ports for hydrostatic
lubrication to conical and thrust bearings. Counterbalancing means.
A detachable top frame positioned on top of mainframe is restrained
against radial and circular movement. Pivoting hooks and hydraulic
cylinders tilt outward facilitating rapid servicing. Gas accumulators
with hooks and cylinders restrain top frame against crushing forces,
yield to non-crushable objects. Detachable top frame has internal
thread engaging an external thread of a rotatable member that when
rotated adjusts for product sizes and replacement of wear parts;
a means to lubricate said threads. Power means to unlock, rotate,
and lock said rotatable member. A wear resistant mantle is clamped
to gyrating conical member by hydraulic means. A wear resistant
liner is held in rotatable member by slidable wedges.
A garlic crusher is composed of a upper pressing on which is disposed
a pressing block, a lower pressing piece on which is disposed a
garlic-pressing groove for accepting the pressing block, and a through-hole-matrix
metal sheet. Using a pintle, the corresponding ends respectively
of the upper and the lower pressing piece are connected to be a
hinge joint. The garlic-pressing groove is disposed at one end of
the lower pressing piece near the pintle, and formed by the downward
through-aperture on the lower pressing piece and a through-hole-matrix
metal sheet, which is inserted into the lower pressing piece through
an inserting slot to take its position just above the widow disposed
on the lower pressing piece. The garlic crusher is quite convenient
in installation and in operation.
The invention provides a crusher which can produce uniform finely
pulverised material without having to increase the speed of the
rotor, and which has a good rate of productivity. The crusher comprises
crushing vanes 3 having extensions 35 formed protruding radially
from the outer surface of the rotor 1 and extending below a raw
material drop point A of a dead-bed 4 and an annular wall 5 similarly
positioned below the raw material drop point A of the dead-bed 4
on an inner rim of a lower plate 22 of the crushing chamber 2 and
pulverizing is effected by the material 7 which rebounds and falls
from the dead-bed 4 striking the extensions 35 of the crushing
vanes 3.
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