FIELD: engineering industry.
SUBSTANCE: invention refers to engineering industry, and can be used for cutting tubes and restoring used tubes during erection/removal works performed in main and oil pipelines. Device consists of attachment point of cutting tool with the rotary drive thereof, which is made in the form of a motor with planetary reduction gear, and cutting tool driving mechanism. Attachment point of cutting tool is made in the form of fixed annular housing with supports, inside which there mounted is rotary element with two cutting tool holders rigidly fixed thereon; on one holder there fixed is a cutting-off tool, and on the other one - cutting tool for forming a welding chamfer. Cutting tool driving mechanism is made in the form of a ratchet wheel installed on bearings and made as integral part of the slide feed screw for installation of one of cutting tools. On fixed annular housing there rigidly fixed is a limit stop made in the form of a tooth that copies ratchet wheel tooth profile. Limit stop has the possibility of turning the screw for radial feed of slide of cutting tool holder when ratchet wheel is turned by one tooth.
EFFECT: improving reliability and durability of the device, and reducing the time required for tube cutting.
3 cl, 4 dwg
| Title | Year | Author | Number |
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| 0 |
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SU1074660A1 |
