Screen lift mechanism for variable slope vibrating screens
View Patent ↗A compact mobile variable angle vibrating screen with a suspension and dampening system configured to rapidly accommodate variable angles and exhibit acceptable vibration levels; especially during power up and power down surge vibration at the variable angles. The system comprises a group of bi-directional dual pivot leg vibration damper mechanisms, including nesting tubes, one with holes for receiving pins and the other with a semi-circular cutout at the bottom edge.
1. A variable slope vibrating screen for material processing comprising:
a frame;
a support structure which is configured to be adjusted to variable angles with respect to said frame;
a variable slope vibrating screen configured for sorting aggregate by size, said variable slope vibrating screen being supported at variable slopes by said support structure;
a discharge output configured for creating a pile of sorted aggregate; and
a hydraulic system configured to apply a biasing damping force which is directed for biasing a portion of said support structure, so as to reduce relative movement between said frame and said support structure;
further comprising an accumulator for maintaining said biasing damping force over a period of time, despite pressure reducing leaks in said hydraulic system.
2. A variable slope vibrating screen for material processing comprising:
a frame;
a support structure which is configured to be adjusted to variable angles with respect to said frame;
a variable slope vibrating screen configured for sorting aggregate by size, said variable slope vibrating screen being supported at variable slopes by said support structure;
a discharge output configured for creating a pile of sorted aggregate; and
a hydraulic system configured to apply a biasing damping force which is directed for biasing a portion of said support structure, so as to reduce relative movement between said frame and said support structure
wherein said support structure comprises:
an outer adjustable support leg;
an inner adjustable support leg; and
a locking pin;
wherein said outer adjustable support leg comprises, at a bottom terminal end a half circle cut out for partially surrounding said locking pin when said locking pin is disposed in a predetermined hole in said inner adjustable support leg;
further comprising an accumulator for maintaining said biasing damping force over a period of time despite pressure reducing leaks in said hydraulic system.
3. A variable slope vibrating screen for material processing comprising:
a frame;
a support structure which is configured to be adjusted to variable angles with respect to said frame;
a vibrating screen configured for sorting aggregate by size, said vibrating screen being supported at variable slopes by said support structure;
an output configured for creating a pile of sorted aggregate; and
a system configured to apply a biasing force which is directed for biasing a portion of said support structure, so as to reduce relative movement between said frame and said support structure;
wherein said support structure comprises:
an outer adjustable support leg;
an inner adjustable support leg; and
a locking pin; and
wherein said outer adjustable support leg comprises, at a bottom terminal end, a half circle cut out for partially surrounding said locking pin when said locking pin is disposed in a predetermined hole in said inner adjustable support leg.
4. The screen of claim 3 further comprising an accumulator for maintaining said biasing force over a period of time despite pressure reducing leaks in said system.
5. A variable slope vibrating screen for material processing comprising:
a frame;
a support structure which is configured to be adjusted to variable angles with respect to said frame;
a vibrating screen configured for sorting aggregate by size, said vibrating screen being supported at variable slopes by said support structure;
an output configured for creating a pile of sorted aggregate; and
a system configured to apply a biasing force which is directed for biasing a portion of said support structure, so as to reduce relative movement between said frame and said support structure;
further comprising an accumulator for maintaining said biasing force over a period of time, despite pressure reducing leaks in said system.
6. A variable slope vibrating screen for material processing comprising:
a frame;
a support structure which is configured to be adjusted to variable angles with respect to said frame;
a variable slope vibrating screen configured for sorting aggregate by size, said variable slope vibrating screen being supported at variable slopes by said support structure;
a discharge output configured for creating a pile of sorted aggregate;
a hydraulic system configured to apply a biasing damping force which is directed for biasing a portion of said support structure, so as to reduce relative movement between said frame and said support structure;
wherein the biasing damping force is at least partially directed downwardly;
wherein said support structure comprises:
an outer adjustable support leg;
an inner adjustable support leg; and
a locking pin;
wherein said hydraulic system comprises a cylinder which is capable of both forcibly extending and retracting;
wherein said outer adjustable support leg comprises, at a bottom terminal end, a half circle cut out for partially surrounding said locking pin when said locking pin is disposed in a predetermined hole in said inner adjustable support leg; and
further comprising:
an accumulator for maintaining said biasing damping force over a period of time, despite pressure reducing leaks in said hydraulic system.