초록 ▼

The backing device has a back-up roll placed between the housings of a roll stand and the ends of the roll are mounted in the guide windows of the housings. A hydrostatic bearing has a body which rests on the back-up roll and a shell whose internal surface is spaced by a clearance from the barrel of

The backing device has a back-up roll placed between the housings of a roll stand and the ends of the roll are mounted in the guide windows of the housings. A hydrostatic bearing has a body which rests on the back-up roll and a shell whose internal surface is spaced by a clearance from the barrel of the back-up roll and is provided with pockets. The back-up roll rests by its ends on a supporting beam which is pressed against it by pressure screws. The bearing shell is urged against the roll barrel by hydraulic cylinders mounted between the supporting beam and the bearing body. The chambers of the hydraulic cylinders are connected through respective conduits and throttles to the pockets on the shell internal surface, and there is at least one pocket for each hydraulic cylinder. The pockets and the respective hydraulic cylinders are connected to a single source of fluid under pressure.

대표청구항 ▼

A backing device for working roll of a roll stand placed between the housings of said roll stand and mounted in the guide windows of said housings where pressure screws are disposed; said device comprising a back-up roll placed between the housings, the ends of said back-up roll being mounted in the

A backing device for working roll of a roll stand placed between the housings of said roll stand and mounted in the guide windows of said housings where pressure screws are disposed; said device comprising a back-up roll placed between the housings, the ends of said back-up roll being mounted in the guide windows of said housings; a hydrostatic bearing having a body mounted on said back-up roll and having a shell adapted to adjoin said back-up roll so that the internal surface of said shell is spaced apart from the barrel of said back-up roll and is provided with pockets connected in the course of rolling to a source of fluid under pressure; a supporting beam whose ends are pressed against said back-up roll by said pressure screws; hydraulic cylinders mounted between said supporting beam and said hydrostatic bearing and arranged along said back-up roll so that there is at least one pocket of said bearing shell for each of said hydraulic cylinders, the chambers of said hydraulic cylinders being connected in the course of rolling to the source of fluid under pressure, whereby said hydraulic cylinders act upon the body of said hydrostatic bearing for regulating the thickness of the stock being rolled; conduits for connecting in the course of rolling the pockets of said shells and the chambers of said hydraulic cylinders to a single source of fluid under pressure; and throttles in the conduits that connect the pockets of said shell to the source of fluid under pressure.