FIELD: technological processes.
SUBSTANCE: invention relates to pipe-rolling production, namely, to design of three-high mill for cold rolling of pipes. Stand comprises movable power bed with support rails and toothed racks and movable cartridge with working rolls, bearing supports, gears and replaceable calibers. Each working roll is equipped with a collar with two parallel flats. Each replaceable gauge is circular, having on one end side a groove enveloping flank flanges. Second end face of replaceable ring gauge is made free from its fixation on working roll. Support rails have square cross-section and are located on both sides of each replaceable gauge.
EFFECT: invention provides the possibility of a large turn of the gauge during rolling while maintaining the length of the working stroke, thereby reducing the diameter of the gauge and the possibility of rolling pipes with a thin wall; reduction of diameters of gauges leads to reduction of rolling forces, reduction of overall dimensions and weight of the working stand.
1 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROLLING MILL OF COLD-ROLLING MILL FOR PIPES ROLLING | 2009 |
|
RU2384376C1 |
| TUBE COLD ROLLING MILL ROLL HOLDER | 0 |
|
SU835542A1 |
| THREE-HIGH STAND OF LENGTHWISE ROLLING | 2007 |
|
RU2343024C2 |
| TUBE COLD-ROLLING MILL STAND | 2012 |
|
RU2487771C1 |
| PIPE COLD-ROLLING MILL | 2009 |
|
RU2397033C1 |
| ROLLING MILL OF COLD PILGER MILL | 2010 |
|
RU2441723C1 |
| PIPE COLD ROLLING MILL | 2009 |
|
RU2385779C1 |
| CONTINUOUS LENGTHWISE ROLLING MILL | 2007 |
|
RU2345850C2 |
| TUBE COLD ROLLING MILL | 2013 |
|
RU2532214C1 |
| ROLLING STAND OF MILL FOR COLD ROLLING OF TUBES | 1997 |
|
RU2141388C1 |
