FIELD: metallurgy.
SUBSTANCE: device includes movable wedge moved with a screw fixed with its projection against longitudinal displacement in slot of bottom wedge, and wedges fixing the rack. Rack is installed in the housing restricting it against longitudinal displacement. Possibility of separate displacement of wedges and provision of minimum side gaps in rack-pinion engagement, reduction of metal consumption and labour intensity of production of roll stand equipment due to reducing the overall dimensions of wedge connection as to height and simplifying the production of wedges and bottom wedge, which do not require high accuracy of angles of their slopes is provided due to the fact that additional movable wedge is located opposite the movable wedge. Rotating nut is installed on screw in movable wedge. Bottom wedge is provided with two symmetrical surfaces for inclined surfaces of movable wedges. Screw has left and right threads interacting with corresponding threaded holed of wedge and nut. Racks are engaged with pinions of rolls. Bottom wedge is fixed in pinion rack with projections against longitudinal displacement.
EFFECT: improving reliability and operating life of device for transverse movement of racks of rack-and-pinion drive of rolls of roll stand of tube cold rolling mill.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TUBE COLD ROLLING MILL | 2013 |
|
RU2532214C1 |
| COLD PIPE ROLLING MILL STAND | 2015 |
|
RU2601724C1 |
| TUBE COLD-ROLLING MILL STAND | 2012 |
|
RU2487771C1 |
| WORKING STAND OF COLD ROLLING MILL OF PIPES | 2019 |
|
RU2720330C1 |
| MILL FOR COLD ROLLING OF PIPES | 2009 |
|
RU2380180C1 |
| PIPE COLD-ROLLING MILL STAND | 2012 |
|
RU2488454C1 |
| COLD TUBE-ROLLING MILL ROLL STAND | 0 |
|
SU727244A1 |
| RACK-AND-GEAR DRIVE OF ROLLS OF PILGER MILL | 0 |
|
SU1808431A1 |
| ROLLING STAND OF MILL FOR COLD ROLLING OF TUBES | 1992 |
|
RU2061565C1 |
| TUBE COLD ROLLING MILL ROLLING STAND | 1992 |
|
RU2088353C1 |
