Vectored thrust shale shaker

A vibratory vectored thrust shaker apparatus for separating solid materials from fluids comprising:

• a base frame supported on a supporting surface and having a vertical strut extending upwardly from one side;
• a generally rectangular screen bed frame supported in a generally horizontal position above said base frame and having a material receiving end and an opposed discharge end spaced longitudinally therefrom, and a pair of parallel side rails each secured at one end to a longitudinal side of said screen bed frame near said discharge end and extending angularly upward therefrom at an acute angle to horizontal;
• resilient support means between said base frame and said screen bed frame for supporting said screen bed frame above said base frame for vibratory movement relative thereto;
• a screen bed in said screen bed frame including at least one generally planar mesh screen for receiving solid materials and fluids to be separated by said at least one screen;
• an eccentrically weighted vibratory shaft rotatably mounted transversely between the upper ends of said side rails and having a first resilient round member mounted at one end thereof;
• a motor bracket having a lower horizontal element secured to said strut, an upper movable element hinged at one end to said horizontal element and extending angularly upward and outward from the hinged connection, and a compression spring disposed between the unhinged ends of said upper and lower elements to normally urge them apart;
• a drive motor mounted on said motor bracket upper element to pivot therewith and having a second resilient round member mounted on its drive shaft;
• and
• said second resilient round member engaged in spring biased relation with said first resilient round member by the force of said compression spring means to rotate said vibratory shaft;
• such that
• as the weighted portion of said vibratory shaft rotates to the point of tangency of said round members, centrifugal force is exerted angularly downward to compress said round members together and compress said compression spring and the angular downward force is substantially absorbed and relatively little movement is imparted to said screen bed frame;
• as the weighted portion of said eccentrically weighted shaft rotates to a point opposite the point of tangency of said round members, centrifugal force is exerted angularly upward allowing said round members and said compression spring to expand creating a relatively large resultant angular upward force acting on said screen bed frame and the materials to be separated are thrust in an angular direction toward said discharge end.

In a vibratory vectored thrust shaker apparatus for separating solid materials from fluids of the type having a base frame supported on a supporting surface, a generally rectangular screen bed frame resiliently supported in a generally horizontal position above the base frame for vibratory movement relative thereto and having a material receiving end and an opposed discharge end spaced longitudinally therefrom, and a screen bed in said screen bed frame including at least one generally planar mesh screen for receiving solid materials and fluids to be separated by said at least one screen:

• an eccentrically weighted vibratory shaft mounted transversely across said screen bed frame near said discharge end;
• a drive motor mounted on said base frame having a drive shaft connected with said vibratory shaft for imparting rotation thereto;
• and
• resilient means connected between said vibratory shaft and said motor drive shaft to become resiliently compressed and substantially absorb the generally downward directed component of centrifugal force caused by said vibratory shaft and to become expanded as said vibratory shaft causes a generally upward directed component of centrifugal force to supply additional generally upward force, such that
• the resultant generally upward directed force and corresponding movement imparted to said screen bed frame is relatively larger than the resultant generally downward directed force and corresponding movement;
• and
• said vibratory shaft being mounted near said discharge end of said screen bed frame causes slower shorter vibratory motion at said discharge end and faster longer vibratory motion at said material receiving end of said screen bed frame to launch said sold materials on said screen bed toward said discharge end at an angle relative to said screen bed.