Chain wheel arrangement for mining machines

Details Chain wheel arrangement for mining machines Chain wheel arrangement for mining machines

B - Operations, Transporting

65

G

B65G 23/06 (2006.01)

Patent

CA 2752210

The invention relates to a chain wheel arrangement for chain drives of mining machines, with a chain wheel shaft 1, with a chain wheel, with bearing shells 4 receiving bearings 5 for the chain wheel shaft, with a chain wheel-side sliding ring seal 42 and with a bearing-side sliding ring seal 41. In order to improve the service life of the chain wheel arrangement, at least one of the bearings 5, preferably that of the movable bearing system 3, is arranged in a bearing bush 50 which is arranged between the bearing shell 4 and outer bearing ring 5B and received in the bearing shell 4 in an axially displaceable manner. The additional bearing bush 50 allows the necessary gap between the rotating parts and the non-co-rotating, bearing shell-side parts to remain substantially constant and to this extent to become independent of the bearing play of the respective bearings.

L'invention concerne un dispositif de roue à chaîne pour les transmissions par chaîne des machines minières, comprenant un arbre de roue à chaîne 1, une roue à chaîne, des coques de support 4 recevant des paliers 5 pour l'arbre de roue à chaîne, un joint de bague de glissement côté roue à chaîne 42 et un joint de bague de glissement côté palier 41. Afin d'améliorer la durée de vie utile du dispositif de roue à chaîne, au moins un des paliers 5, de préférence celui du système de palier mobile 3, est disposé dans un coussinet de palier 50, qui est disposé entre la coque de palier 4 et une bague de palier externe 5B et reçu dans la coque de palier 4 de manière à se déplacer axialement. Le coussinet de palier supplémentaire 50 permet de maintenir constant l'intervalle nécessaire entre les parties rotatives et les parties côté coques de palier non rotatives et ainsi, le coussinet supplémentaire devient indépendant du jeu de palier des paliers respectifs.

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