"Seal Structure Of Mechanical Device And Wind Turbine Generator"

Abstract: It is intended to improve maintainability of a seal structure in a place where the rotation shaft is inserted in the housing. A seal structure of a mechanical device is provided with a housing 18 having an opening in which an input shaft 21 is inserted, a holding plate 41 which is connected to a periphery of the opening of the housing 18 and which has an opening in which the input shaft 21 is inserted, a felt ring 46 which is provided in the holding plate 41 and which seals a space between the holding plate 41 and the input shaft 21, a separable housing 43 which is provided to cover the holding plate 41 and a separable oil seal 45 which seals the space between the holding plate 41 and the input shaft 21 and a space between the cover and the rotation shaft. The holding plate 41 has an arc-shaped projection 47b extending to a position where the projection comes in contact with a wall surface of the separable housing 43 and a housing space for housing the oil seal 45 is formed by the wall surface of the cover, the inner periphery of the arc-shaped projection 47b and the wall surface of the holding plate 41.

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