US 4,539,104 A · Bucket elevator linkage for coarse coal washer

Abstract

A continuous bucket elevator used in a method of separating coal according to its size and for cleaning refuse material from the coal in a Baum-type jigging apparatus wherein each bucket is connected to the adjacent bucket by a link received by a roll pin held by a bushing at each end in each bucket and the flange of a plate which is centrally welded to the bucket and has portions biased outwardly therefrom which merge into further portions having openings for receiving the roll pins, the diameter of the aligned openings in the further part, in the bushings, and in intervening link and the diameter of the roll pins being such so as to restrict wear due to the abrasive nature of the material being handled so that all components of the elevator wear out at about the same time and need not be replaced until after two or three cycles of use, each cycle being normally for seven and ten months.

Claims19

Dependent claims

An elevator mechanism for removing refuse material having abrasive characteristics, the mechanism comprising:

a plurality of buckets having parallel vertical sides;
roll pins and bushings for receiving said roll pins extending normally from near the top and bottom of each bucket side;
links having openings receiving said roll pins connecting said buckets so that each link connects the top roll pin of one bucket to the lower roll pin of the adjacent bucket to form an endless bucket elevator, each roll pin including a retaining head which is disposed outwardly and spaced from its corresponding links;
a plate rigidly affixed adjacent each said roll pin to the outside of each said bucket side, said plate having a first part extending outwardly of said bucket side to which it is affixed and a second part spaced outwardly of said bucket side to form a fork arrangement which defines a space between said second part and said bucket side which includes a said bushing as opposing sides of the fork, said plate further having an opening aligned with the bore of said bushing in said fork arrangement receiving said roll pin, said link receiving said roll pin in said fork arrangement between said second part and the corresponding said bushing.

1 more element

A continuous bucket elecator which comprises:

a plurality of buckets having substantially vertical and parallel sides;
a pair of bushings affixed to each said side so that one bushing is disposed at its upper rear aspect and one bushing is disposed at its lower rear aspect, the outward ends of said bushings being in substantially the same plane;
a pair of plates affixed to each said side adjacent to each said bushing, each said plate having a first part extending outwardly from said side and a second part extending substantially parallel to each side to form on each said side a bifurcated arrangement, each said second part having an opening therein which is aligned with a bore of an adjacent said bushing in said first part;
each said bucket connected to the adjacent bucket by a pair of links, each said link having a hole at each end, said latter end of each said link being received in a respective said bifurcated arrangement between a said second part and the bushing adjacent thereto whereby said hole is aligned with the opening in said second part and the bore in the corresponding said bushing and a pin is received in said aligned opening, hole and bore, a said link being provided between each said second part and its corresponding said bushing so that each said bucket is connected to the bucket adjacent thereto by a respective said link extending between said bifurcated arrangements in the lower rear aspects and the upper rear aspects of said sides of said adjacent buckets.

1 more element

A bucket in a continuous elevator for use in a method of separating mineral particles of a lower settling rate from mineral particles of a higher settling rate by introducing a bed of said particles into water and repeatedly subjecting said bed to cycles of vertically acting alternate pulsion and suction strokes of water to effect stratification of said particles, removing one strata from said bed and conveying same to a compartment for said elevator so that each bucket in said elevator receives water and material from said one strata, raising said material to drain said water and discharge said material separately from other strata in said bed, said bucket comprising two sides joined by a container part having openings for the discharge of said water, bushings disposed in the upper and lower aspects of each said side, plate means rigidly secured to each said side between said bushings, said plate means including a pair of flanges, each said flange extending outwardly of and spaced from a respective said side over one of said bushings and including pin receiving means coaxial with said one bushing which pin receiving means receives a pin which is also received by the adjacent said one bushing, a link receiving said pin between said one bushing and said pin receiving means, said link extending between a further flange and further pin receiving means in an adjacent bucket whereby it receives a further pin and connects said adjacent buckets.

Dependencies are inferred from the claim text.

Bucket elevator linkage for coarse coal washer

Life of this patent

Bucket elevator linkage for coarse coal washer

Life of this patent

Abstract

Claims19