Portable rock crusher and scarifier

An improved portable rock crusher and scarifier having a crusher frame defining a feed inlet at a forward end portion, a discharge outlet at a rearward end portion and a crusher channel extending there between journaling a rotatable arbor carrying plural tooling implements for comminuting, recycling and reclaiming road construction materials, and a power pack operatively interconnected with the rotatable arbor, the improvements comprising in combination:

• an anvil weldment channel defined by two parallel spaced apart strongbacks structurally carried by the crusher frame, the anvil weldment channel communicating with the crusher channel proximate the rotatable arbor;
• an anvil weldment adjustably carried within the anvil weldment channel, the anvil weldment having,
• two parallel spaced apart inertia plates, each inertia plate having a bottom edge portion structurally attached to a top edge portion on an anvil block;
• an anvil releasably attached to the anvil block opposite the inertia plates;
• plural symmetrically spaced axial keyways defined in the rotatable arbor for releasable carriage of the plural tooling implements, each keyway defining plural spacedly arrayed threaded radial holes for releasable fasteners to secure the plural tooling implements in the keyways;
• the plural tooling implements releasably attachable to the rotatable arbor, each tooling implement having a head portion, an opposing base portion for engagement in a keyway, and at least one through hole for a releasable fastener extending therethrough;
• an engine and an operatively interconnected hydraulic pump carried by the power pack;
• two hydraulic motors operatively communicating with the hydraulic pump, each hydraulic motor carrying a rotatable drive pulley;
• and
• a drive belt communicating between the drive pulley and a slave pulley carried at each end of the rotatable arbor to transfer rotational motion of the drive pulley to the rotatable arbor.