A wheel case for a vibrating device for vibrating aggregate material includes a housing configured to contain a quantity of lubricating oil and a wheel positioned in the housing and mounted to a shaft of the vibrating device. The wheel includes: an inwardly facing side; an outwardly facing side; an eccentric weight mounted to the inwardly facing side or the outwardly facing side; and a plurality of bearings positioned in an annular bearing channel configured to permit the wheel to rotate about a spindle of the shaft. The wheel case also includes a dam mounted to the wheel at least partially covering the annular bearing channel, positioned such that the lubricating oil collects in the annular bearing channel during rotation of the wheel, and such that the collected lubricating oil remains in the annular bearing channel when rotation of the wheel ceases.

A vibratory system for a screening and/or feeder machine, the vibratory system including shaft lines, each shaft line having an unbalance module, the vibratory system also having a drive device configured to drive the shaft lines in rotation in synchronous manner and in the same direction. The vibratory system also includes an angle modifier device configured to modify the angular position of the unbalance module of one shaft line relative to the angular position of the unbalance module of the other shaft line or of one of the other shaft lines.

This disclosure is drawn systems, devices, apparatus, and/or methods related to the separation of a mixture of solids according to size and the separation of solids from liquid. Specifically, this disclosure is drawn to an adjustable weight set for use on vibratory separators. In some examples, the adjustable weight set may include a base plate rotatable about an axis and extending radially outward from the axis; a plurality of slots extending through the base plate and being disposed between a radially outward periphery of the base plate and the axis; a plurality of weights coupled to each other about the base plate; and a weight locking tab that partially surrounds the base plate that may include one or more hooks extending through a portion of a slot.

A lock assembly for a vibratory separator includes a latch. The latch includes a first inner protrusion and a first outer protrusion. The first outer protrusion defines a first outer protrusion opening. The lock assembly also includes a first spacer. The first spacer includes a first fastener that is configured to be inserted into the first outer protrusion opening.

A separation tank device may include a holding tank having a tank wall coupled to and extending above a tank base. A base wall may be coupled to and may extend above the tank base. The base wall may form a base upper aperture that is opposingly positioned to the tank base, and a base lower aperture may be formed in the base wall. The device may further include a movable wall having a movable upper aperture and a movable lower aperture, and the movable wall may be movable between a first position and a second position. When the movable wall is in the first position, the movable lower aperture may be positioned above and aligned with the base upper aperture, and when the movable wall is in the second position the movable lower aperture may be unaligned with the base upper aperture.

A vibratory drive system, suitable for a material screening apparatus, includes rotatable drive shafts each having a centre of mass offset from its rotational axis. A respective drive mechanism is coupled to each drive shaft and is controlled by a controller. The controller adjusts the relative rotational speed of the drive shafts to adjust the relative angular position of the respective centre of mass of the drive shafts. This adjustment allows the vibratory characteristics of the drive system to be changed without having to halt the drive system.

A vibrating screen for screening particulate material fed into an inlet hopper of a conveyor features a screen comprising a first mesh portion locating openings therein that are sized for receiving individual particles of the particulate material therethrough. The vibrating screen includes a mounting assembly arranged for removably mounting to the inlet hopper that features a frame sized and shaped to be contained within the inlet hopper at a location above the conveyor so as to be supported thereabove by engagement with the side walls of the inlet hopper. The vibrating screen also features a suspension system resiliently supporting the screen on the mounting assembly such that the screen spans across at least a portion of an inlet opening at a top of the inlet hopper. A vibrating device supported on the screen is arranged for vibrating the screen relative to the inlet hopper of the conveyor.

A motovibrator with continuous adjustment of the angular offset of the eccentric masses includes a substantially box containment body which accommodates electric motor elements which have a stator that is integral with the body and a rotor for the rotational actuation of a shaft about its own longitudinal axis. The opposite ends of the shaft protrude from the body and are each associated with at least one respective eccentric mass. The shaft includes a main section and a secondary section mutually aligned along the longitudinal axis, the main section being actuated rotationally directly by the rotor, and are coupled rotationally by interposition of transmission elements.

An apparatus that generates vibrational motion is disclosed. The apparatus includes a first mass, a second mass, a drive system, and a control system. The first mass is eccentrically mounted on, and configured to rotate about, a first shaft. The second mass is eccentrically mounted on, and configured to rotate about, a second shaft, with first and second shafts sharing a common axis. The drive system imparts rotational motion to first and second shafts, and the control system controls rotational frequencies, directions, and initial angles of the first and second masses. Linear, elliptical, or circular vibratory motion of the apparatus may be induced by controlling such rotational properties of the first and second masses. The apparatus may include a measurement device that measures angular position and/or velocity of the first and second masses. The control system may control the vibrational motion based on measurements taken by the measurement device.

A spring assembly includes a resilient member having a first and second end shanks and a central helical portion. The first end shank extends in a first direction from the central helical portion, and has a longitudinal axis from a proximal end to a distal end. The second end shank extends in a second, opposite direction from the central helical portion, and has a longitudinal axis from a proximal end to a distal end. The central helical portion includes one or more coils disposed about a central longitudinal axis, and has a first end attached to the proximal end of the first end shank and a second end attached to the proximal end of the second end shank. The axes of the shank ends and the axis of the central helical portion are parallel or are collinear. The assembly also includes an attachment site at each of the end shanks.