초록 ▼

A connection of steel pipes for conveying solid materials, particularly for conveying gravel, includes radially directed coupling flanges which extend circumferentially at the ends of the steel pipes. The coupling flanges have receiving bores for the coupling bolts, wherein the receiving bores exten

A connection of steel pipes for conveying solid materials, particularly for conveying gravel, includes radially directed coupling flanges which extend circumferentially at the ends of the steel pipes. The coupling flanges have receiving bores for the coupling bolts, wherein the receiving bores extend parallel to the longitudinal axes of the steel pipes and are arranged on a pitch circle. At least one wear ring is inserted between the end faces of the steel pipes which face each other. The wear ring is of a material which has a greater resistance to wear than the material of the steel pipes.

대표청구항 ▼

[ I claim:] [1.] A connection of steel pipes for conveying solid materials, particluarly for conveying gravel, wherein each steel pipe has a longitudinal axis and ends with end faces, the connection comprising radially directed coupling flanges mounted circumferentially at the ends of each steel pip

[ I claim:] [1.] A connection of steel pipes for conveying solid materials, particluarly for conveying gravel, wherein each steel pipe has a longitudinal axis and ends with end faces, the connection comprising radially directed coupling flanges mounted circumferentially at the ends of each steel pipe, each coupling flange having a plurality of receiving bores arranged on a circle and extending parallel to the longitudinal axes of the steel pipes, and coupling bolts inserted in the receiving bores, further comprising at least one wear ring placed between the end faces of the steel pipes which face each other, wherein the at least one wear ring is comprised of an inner layer and an outer layer surrounding the inner layer, wherein the inner layer is of a material which has a greater resistance to wear than the material of the steel pipes, wherein the outer layer is of a material which has less resistance to wear than the material of the steel pipes, and wherein the outer layer comprises bearing bores located in alignment with the receiving bores of the coupling flanges.