Impact absorbing apparatus for a belt conveyor

B - Operations – Transporting – 65 – G

Patent

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Details

B65G 15/60 (2006.01) B65G 39/12 (2006.01)

Patent

CA 2202977

A shock-aborbing suspension (10) for a conveyor assembly includes brackets (22, 22') that attach to the parallel support beams (11) of the conveyor (18). The brackets support corresponding saddles (32, 32'), that in turn, mount the conveyor assembly. In a preferred embodiment, the saddles are mounted above inverted U-shaped brackets that are attached to the top flange of the support beams. Dual coil springs (34) are positioned vertically between the brackets and the saddles, with one spring on each side of the supprot beams. Within the springs are guide pins (35) to restrict lateral movement, while adjustable fasteners (37) preload the springs. In alternate embodiment, the bracket/saddle combination is reoriented to provide increased overhead clearance. Each longitudinal end of the combination is covered by a skirt (52) of flexible rubber to protect the interior from dust and debris. The brackets (22') on opposing support beams are connected by a telescoping linkage (25) that adjusts the spacing between the bracket/saddle combinations to match the spacing between the support beams. A kit is also provided for retrofitting a conveyor assembly.

Absorbeur de chocs suspendu (10) destiné à un transporteur à bande, qui est constitué de supports (22, 22') fixés aux poutres porteuses parallèles (11) de la bande transporteuse (18). Les supports servent de soutien à des étriers correspondants (32, 32') qui, à leur tour, forment la base du transporteur à bande. Dans un mode de réalisation préférentiel, les étriers sont disposés au-dessus de supports profilés en forme de U renversé qui sont fixés sur la semelle supérieure des poutres porteuses. Des ressorts à boudin jumelés (34) sont positionnés à la verticale entre les supports et les étriers, de part et d'autre des poutres porteuses. Les ressorts sont pourvus de broches-guides (35) conçues pour restreindre les déplacements latéraux et des attaches réglables (37) mettent les ressorts en précontrainte. Dans un autre mode de réalisation, l'ensemble supports/étriers est réorienté pour augmenter l'espace de dégagement en hauteur. Chaque extrémité longitudinale dudit ensemble est revêtue d'une collerette (52) en caoutchouc flexible qui protège l'intérieur de la poussière et des résidus. Les supports (22') des poutres porteuses en vis-à-vis sont reliés par un raccord télescopique (25) qui adapte l'espacement entre l'ensemble supports/étriers à celui des poutres porteuses. L'invention porte également sur un kit de rattrapage pour le transporteur à bande.

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