SU389854A1 - DRIVE ROLLS MILL COLD PIPE ROLLING - Google Patents

Description

one

The invention relates to pipe production, in particular to the improvement of the drives of the rolls of the cold rolling mill Q1 pipe mill.

The known drive of the rolls of the cold rolling mill tube includes a rail, an intermediate gear moving along it and a roller gear installed on the axles.

The disadvantage of such a drive is that the adjustment of the roll solution is carried out with movable rails and varying center distance of the intermediate gears.

In order to smoothly change the distance between the roller gears when adjusting the roll solution with stationary racks and the CONSTANT.

FIG. 1 shows the described drive; On fnp 2 - the same, the section along A-A in FIG. one.

The drive contains stationary / fixed rails 2, along which intermediate gears 5, having a constant distance between axes 4, and interacting with intermediate gears, located on axes 5, roll ujecTepHH 6, move.

The roller axes 5 and 4 intermediate gear axles are in parallel planes perpendicular to the direction of movement of the intermediate gears along the rails. These axes are placed in stationary bearings 7 of the movable cassette S.

In the process of working from the prt cassette 5,

which is reciprocated, the intermediate gears 3, through engagement with the rails 2, make a swinging motion on the axles 4, which is transmitted to the roller gear 6 and, consequently, to the rollers 9.

When changing the solution of the rolls, the roller gears 6 roll over intermediate gears 3. Since the distance between the axles of the 4 intermediate gears is constant, with fixed rails the gap in the engagement between the roller gear 6 and the intermediate gear 5 will not significantly change , and the gap in the meshing intermediate gear - rail 2 will always be constant. This significantly increases the durability of gearing.

Subject invention

The drive of the rolls of the cold rolling pipe stack, including the slats, moved along

In this case, the intermediate gears interacting with the roller gears, characterized in that, in order to smoothly change the distance between the roller gears when adjusting the roll solution with the stationary slats and the constant center distance of the intermediate gears, the axes of rotation of the roller and intermediate gears are parallel planes perpendicular to the direction of movement of the intermediate gears along the rails.