VIBRATING SCREEN Russian patent published in 2017 - IPC B07B1/40 B07B1/42 

FIELD: mining engineering.

SUBSTANCE: invention relates to mining and processing equipment, namely to the devices for separation of bulk materials by size, and can be used in mining, metallurgical and construction industries. A vibrating screen comprises a box mounted on the supports via elastic elements with at least one screening surface and directional vibration exciter, drive shaft which is connected through a driveline with an actuator engine disposed on two side edges movable base with the ability to fixed moving through a stationary fixed guide. Vibration exciter is mounted on a box with a possibility of fixed moving through two guides that are rigidly connected to the side walls of the box. Vibration exciter is designed as a coaxial symmetrical unbalance equipped toothed planetary gear, placed in a barrel in a vibration exciter housing with a possibility to turn around the geometric axis of the central gears and subsequent fixation using a rotary-locking mechanism mounted in the end of the drive end of the vibration exciter housing. Each bearing part of the housing passes through the guide grooves of the vibration exciter and fixed there via fixing means. Vibration exciter with an actuator has a displacement mechanism with contact elements which come into engagement with the bearing parts of a vibration exciter housing and near-to-the-box side edge of the movable base respectively. Unbalance of vibration exciter is fixed on a common shaft of satellites. A screen is complete with a locker disposed at side edge apart of the box of the movable base as a single-acting hydraulic cylinder, the rod of which is provided with the hinged shoe for engagement with the inner surface of the fixed guide. The fixed guide is planar and is oriented parallel to the screening surface. Moving mechanism of a vibration exciter is designed as a pair of double-acting hydraulic cylinders with rods placed on either side of the piston. The rods of hydraulic cylinders are oriented parallel to the screening surface and are fixed to the sidewalls of the box by their ends respectively . The contact elements are placed in the middle of the hydraulic cylinder housings. The fixing unit is made as two toroidal hydraulic chambers of an elastic material, placed on the supporting parts of the vibration exciter housing for engagement through the plain rings with vibration exciter guides.

EFFECT: invention improves the performance of screening and extends operational, process and functional features.

10 dwg