Vibrating screen suspension systems
View Patent ↗A compact mobile variable angle vibrating screen with a suspension and dampening system configured to 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 which are effective only during times of excessive vibration such as during the power up and power down vibration surges.
1. A vibrating screen comprising:
a support structure which is configured to be transported on a highway and is configured to be adjusted to variable angles;
a vibrating screen configured for sorting aggregate by size;
a pair of internally parallel spring groups, the pair being arranged in an angled orientation toward a central location; so as to oppose the other, each of said pair being coupled to both said support structure and said vibrating screen;
a dual pivot damping system configured for damping vibration in two orthogonal axes;
wherein said dual pivot damping system comprises:
a screen connection; on said vibrating screen;
a base connection on said supporting structure; and
a plurality of pivoting leg members coupled in series between said screen connection and said base connection; and
where a plurality of pivoting leg members are disposed adjacent a readily replaceable friction plate.
2. A vibrating screen comprising:
a support structure which is configured to be transported on a highway and is configured to be adjusted to variable angles;
a vibrating screen configured for sorting aggregate by size;
a pair of internally parallel spring groups, the pair being arranged in an angled orientation toward a central location; so as to oppose the other, each of said pair being coupled to both said support structure and said vibrating screen;
a dual pivot damping system configured for damping vibration in two orthogonal axes;
further comprising a means for providing resistance to motion in two directions above predetermined limits.
3. The screen of claim 2 wherein said dual pivot damping system is a self adjusting and self neutralizing system and said plurality of pivoting leg members having rotation limit to prevent from going over center.
4. The screen of claim 2 wherein said means for providing resistance comprises:
a containment cup coupled to said plurality of pivoting leg members; and
a stub post coupled to the screen and disposed in part within said containment cup.
5. The screen of claim 4 further comprising a resilient member disposed within said containment cup for cushioning, reducing wear on said containment cup and said stub post.
6. The screen of claim 5 wherein said resilient member is a readily replaceable rubber like sleeve and is available in various dimensions so as to provide for an adjustment in clearance amounts which is slightly larger than a stroke of the vibrating screen in normal operation.
7. The screen of claim 6 wherein the sleeve is a cushion that is resilient to permanent deformation and returns to original shape after contact with said stub post and said containment cup.
8. A vibrating screen comprising:
a support structure which is configured to be hydraulically adjusted to variable angles;
a multi-deck vibrating screen configured for sorting aggregate by size;
a plurality of springs arranged in groups, each of said plurality of springs arranged as to oppose another of said plurality of springs, each of said plurality of springs being coupled to both said support structure and said vibrating screen;
a dual pivot damping system configured for damping vibration in two orthogonal axes comprising:
a screen connection; on said vibrating screen;
a base connection on said supporting structure; and
a plurality of pivoting leg members coupled in series between said screen connection and said base connection.
9. The screen of claim 8 where said plurality of pivoting leg members are disposed adjacent a readily replaceable friction plate.
10. The screen of claim 9 further comprising a means for providing resistance to motion in two directions above predetermined limits.
11. The screen of claim 10 wherein said dual pivot damping system is a self adjusting and self neutralizing system and said plurality of pivoting leg members having rotation limit to prevent from going over center.
12. The screen of claim 10 wherein said means for providing resistance to motion comprises:
a containment cup coupled to said plurality of pivoting leg members; and
a stub post coupled to the screen and disposed in part within said containment cup.
13. The screen of claim 12 further comprising a resilient member al least partially located within said containment cup for cushioning, reducing wear on said containment cup and said stub post.
14. The screen of claim 13 wherein said resilient member is a readily replaceable rubber like sleeve coupled to said containment cup and is available in various dimensions so as to provide for an adjustment in clearance amounts which is slightly larger than a stroke of the vibrating screen in normal operation.
15. The screen of claim 14 wherein the sleeve is a cushion that is resilient to permanent deformation and returns to original shape after contact with said stub post and said containment cup.
16. A vibrating screen comprising:
a support structure which is configured to be hydraulically adjusted to variable angles;
a multi-deck vibrating screen configured for sorting aggregate by size;
a plurality of springs arranged in groups, each of said plurality of springs arranged as to oppose another of said plurality of springs, each of said plurality of springs being coupled to both said support structure and said vibrating screen;
a dual pivot damping system configured for damping vibration in two orthogonal axes comprising:
a screen connection; on said vibrating screen;
a base connection on said supporting structure;
a plurality of pivoting leg members coupled in series between said screen connection and said base connection;
where said plurality of pivoting leg members are disposed adjacent to a readily replaceable friction plate;
a containment cup coupled to said plurality of pivoting leg members;
a stub post coupled to the screen and disposed in part within said containment cup; and
a resilient member disposed within said containment cup for cushioning, reducing wear on said containment cup and said stub post; wherein said resilient member is a rubber like sleeve that is resilient to permanent deformation and returns to original shape after contact with said stub post and said containment cup.