Maybe you could start with a little story. I don't get what you mean. I guess you are looking for a conveyor. Google cad file library or go to traceparts. You could also google step files library or iges files library.
Would this be a bucket elevator? If you are looking more for a belt elevator in vertical, try manlift in the search. You could also use a screw auger or screw conveyor for a vertical application depending on the material.