Device for radial expansion of an elastomeric sleeve

摘要

The assembly consists of a rigid cylindrical guide (2) with an expander which is able to slide over it inside an elastomer sleeve (1). The expander comprises at least two sets of rigid radial tubular expansion elements (3,4) which fit one inside the other. The inner set (3) comprises three radial expansion elements set one after another lengthwise, and the outer set has elements with stop collars (8) and conical outer surfaces (7) in a number of sections (7.1, 7.2, 7.3, 7.4) with reducing angles of taper. The assembly also incorporates a base (9) with at least one positioning member (10,11) for the radial expansion elements.