BENCH FOR RESEARCH OF PARAMETRES IN CHAIN GATE FOR ORE PASS Russian patent published in 2010 - IPC G09B25/02 E21F13/04 

FIELD: testing equipment.

SUBSTANCE: invention is related to benches for execution of experimental research in laboratory conditions. Device comprises section of vertically oriented pipe fixed on frame, lower cut of which has fixed circular guide with angle profile in cross section with vertical and horizontal shelves. There is upper ring arranged on horizontal shelf with the possibility of rotation in horizontal plane versus this guide. Ring is equipped with identical welded round-link chains attached along its perimetre, lower ends of which are fixed on another lower ring with the possibility of its rotation in horizontal plane and displacement in vertical plane. On upper ring along its perimetre there are alternating rollers installed with the possibility of their rotation in horizontal and vertical axes and with the possibility of rollers interaction accordingly with horizontal and vertical shelves of circular guide. Fixation of lower ends in round-link chains is provided due to their fixation in lower ring with the help of radially oriented rods on its internal surface with the possibility of their location inside links of round-link chains. Length of rods protruding parts is equal to width of round-link chains links. Concentrically versus lower ring there is additional internal ring arranged with the possibility of location between it and lower ring of round-link chains. In openings of additional internal ring there are two pairs of rods arranged diametrically at the right angle to each other with increased length and helical thread at their ends and packing nut with the possibility of its rest against internal ring. Internal ring is made of elastic material and is arranged as split with the possibility of its detachment from rods with helical thread after packing nuts screwing off them. Length of round-link chains is selected so that it is possible to move lower ring up and down along them and fix it in required position, setting distances between upper and lower rings. On lower ring along its perimetre with identical pitch on vertical axes, rollers are installed with the possibility of their interaction with internal cylindrical surface of jacket fixed on frame, as well as two additional diametrically installed rollers on detachable horizontal axes with the possibility of their interaction with vertically oriented guides of I-section in cross section. Guides are hingedly suspended to frame by their upper ends with the possibility of their rotation in plane passing through axes of additional rollers, to the sides from lower ring and fixation of these guides in turned position versus frame. On upper and lower rings there are rims attached with the possibility to install sections of flexible elements in their chutes and with rims enclosure by flexible elements at the angle close to 360 degrees. At the same time one end of each flexible element is fixed on rim, and the second one is equipped with dynamometre and is kinematically joined to drive. Upper ring is equipped with stop accessory, having possibility to fix upper ring versus circular guide. Cylindrical jacket is arranged with vertical slot cut with the possibility to arrange branch of flexible element coming off lower ring. In internal cavity of pipe section there is round plate arranged with gap in horizontal plane with the possibility of replaceable weights location on it and interaction with ore sample placed inside internal section of pipe section. Plate, with the help of flexible element, length of which is equal to height of pipe section, is kinematically connected to frame as point of flexible element attachment to frame is allocated along axis of pipe section symmetry. Under lower ring there is container installed on frame with gate valve placed in its upper part with the possibility of ore pass reception and arrangement in container.

EFFECT: provision of possibility in laboratory conditions to detect power and kinematic characteristics of chain gate for ore pass for conditions of bulk ore outlet from ore pass with versions of rotary ring location - upper or lower ones.

5 dwg