GB1255337A - Cleaning machine for coke ovens - Google Patents

Abstract

1,255,337. Cleaning coke oven doors &c. SOC. INDUSTRIELLE DE LILLIERS. 16 Dec., 1968 [14 Dec., 1967], No. 59771/68. Heading F2N. A machine for cleaning the doors and frames of coke ovens comprises a chassis 1 which supports an endless linked chain 5 guided by a pair of sections 2, 3 the contour of which corresponds to that of the door or frame to be cleaned, the chain 5 carrying a succession of transverse scrapers 26 each of which is mounted on a false link support 7 which is provided with a pair of guide rollers 8, 8, which engage the edge 2a of the section 2, and a roller 22, normal to the rollers 8, 8, and which co-operates with the plane surface of the section 3. As shown, the chain 5, composed of a certain number of identical sections consisting of a series of links 6 and a scraper 26 carried by a false link 7 all joined together by bracings (47), Fig. 8, not shown, of easily adjustable thickness, is driven by a second endless chain 37 which is supported by two pinions 40, 41 and carries a number of regularlyspaced pairs of lateral rollers 38 which are adapted to successively engage correspondingly spaced-driving flanges 39 carried by the chain 5 adjacent each false link 7 one of the pinions 40, or 41 being driven by a motor (42), Fig. 1, not shown, by means of a coupling (43) and a coaxial speed reducer (44). The driving chain 37 carries rollers 54 which co-operate with a fixed ramp 45 to maintain the chains 5, 37 at a fixed distance from one another until an inclined portion of the ramp allows easy withdrawal of the lateral rollers 38, 38 from driving contact with the associated driven flange 39. Each false link 7 comprises a triangular support provided with two guide rollers 8, 8, having biconical grooves which mate with the exterior ridge 2a of the section 2 which is mounted spaced from the front face of the chassis 1 and a trunco-conical intermediate roller 9 which is urged to engage the interior bevelled edge 2b of the section 2 by a stack of spring washers 17. The inner end of the false link plate carries a sleeve 18 which, at its inner bifurcated end, carries the roller 22 and, at its outer end, non- rotatably supports the shaft 25 of a scraper 26 which can move axially toward the chassis 1 against the action of a spring 29 urging it outwardly.