FIELD: technological processes.
SUBSTANCE: three-high stand of lengthwise rolling mill contains cassette, three rotary single-arm levers installed in it, on U-shaped end of which two-support working rollers are mounted, balancing devices and device for radial adjustment of rollers. Device for radial adjustment of rollers is arranged in the form of rotary synchronising ring with three evenly installed ports, in every of which insert is installed with the possibility of radial displacement with wedge that is fixed through adjustment gasket and interacts with cylindrical journal installed on U-shaped end of rotary lever with working roller. Mechanism of synchronising ring rotation is arranged in the form of rotary lever, arm of which is split-connected with hinge support fixed in synchronising ring.
EFFECT: production of high quality pipes at high efficiency.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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RU2311976C1 |
