FIELD: mechanics.
SUBSTANCE: mandrel for tubes dressing comprises body, coiler rolls installed with the possibility of free rotation around their own axes, hollow plungers with protrusions that serve as roller-holders for coiler rollers. At that body is arranged with radial bores of cylindrical shape in the form of hydraulic cylinders for installation of mentioned hollow plungers, and also with axial and radial channels for supply of working fluid under specified plungers. At that plungers are arranged with the possibility of adjustment by angle of roller installation relative to mandrel axis and stationary fixation at selected angle of installation.
EFFECT: technological resources are expanded.
2 dwg
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RU2756059C2 |
