CHAIN GATE Russian patent published in 2009 - IPC E21F13/00 B65D90/54 

FIELD: mining.

SUBSTANCE: present invention pertains to auxiliary transport equipment, and particularly to chain gates, and can be used for closing outlets of ore passes, and outlet of lumped load from storage bins. In the chain gate, upper ring 9 has an L-shaped cross section. Along the perimeter of the vertical wall of the ring, cylindrical rollers 11, are fitted on semi-axes, with provision for their support on horizontal flange 12 of cylindrical connection piece 13. Its diameter is equal to the diameter of the outlet of device 1. Connection piece 13 is fixed under the outlet. On the inner side of the vertical wall of ring 9, add-on components 14, are fitted with equal spacing from each other and are profiled on arcs of a circle, the diameter of which is equal to the diameter of outer edge of horizontal flange 12, and with provision for contact with it. On the outer side of the vertical wall of ring 9, rim 15, is fitted, with provision for putting into its furrow, steel wire cable 16, closed with formation of several windings on a drum. The drum is fitted in the vertical axis with provision for rotation and is kinematically linked to an actuator. The resulting drum is in form of a paraboloid of rotation. Rim 15 on the upper ring is aligned with horizontal flange 12 of cylindrical connection piece 13.

EFFECT: simplification of the design of a chain gate.

3 cl, 3 dwg