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1. 发明专利

RU2147975C1 DEVICE FOR CUTTING-OUT HOLES IN ACTIVE PIPELINE 未知
公开(公告)号：RU2147975C1
公开(公告)日：2000-04-27
申请号：RU99105090
申请日：1999-03-11
申请人： GLADKOV SERGEJ MIKHAJLOVICH , KLABUKOV VLADIMIR VASIL EVICH , ISMAGILOV ANVAR KHALJAFOVICH
发明人： GLADKOV S M , KLABUKOV V V , ISMAGILOV A KH
IPC分类号： B23B41/08 , F16L41/04
摘要： FIELD: pipeline transportation of liquids and gases. SUBSTANCE: spindle shaft carrying cutting tool is provided with rotation and axial displacement mechanisms. They are combined and made as a reduction gear which includes worm-to-worm gear, draw-out carriage with gear and two toothed wheels. Wheels are positioned on spindle shaft coaxially and they can interact with each other through gear. The first toothed wheel is coupled with worm wheel of worm-and-worm gear. Number of teeth of the second wheel is less than that of the first one. Spindle shaft has threaded part on which hub of the second toothed wheel is mounted. Shaft may have fitting part and its diameter is equal to diameter of shaft threaded part. Protective screen is positioned on spindle in front of cutting tool. EFFECT: simplified construction. 3 cl, 5 dwg

2. 发明专利

RU2140343C1 TUBE CUTTER 未知
公开(公告)号：RU2140343C1
公开(公告)日：1999-10-27
申请号：RU98119003
申请日：1998-10-19
申请人： GLADKOV SERGEJ MIKHAJLOVICH , KLABUKOV VLADIMIR VASIL EVICH
发明人： GLADKOV S M , KLABUKOV V V
IPC分类号： B23D21/04
摘要： FIELD: plastic metal working, namely apparatuses for mechanically cutting tubes, mainly at constructing and repairing oil- and gas manifold pipelines, possibly for cutting hollow vessels in other industry branches. SUBSTANCE: tube cutter includes car supporting cutting tool and its rotation drive unit, cut-in mechanism and mechanism for feeding cutting tool in the form of driving sprockets with chains embracing tube and remountable spindle carrying supporting wheels. Rotation drive unit is changeable one, it is mounted in one wall of reduction gear of mechanism for rotating and feeding cutting tool. Reduction gear transfers torque to shaft of cutting tool by means of flexible link, for example by means of chain. In one end of remountable spindle at side of cutting tool eccentrically relative to its axis, guiding roller is mounted in bracket. Profile of guiding roller corresponds to that of cutting tool and it may rotate around its own axis. Bracket is mounted with possibility of rotation around axis of remountable spindle with subsequent fixation of it by means of spring-loaded lever. EFFECT: enlarged operational possibilities of tube cutter due to use of changeable drive unit, enhanced quality of tube end working due to high accuracy of cutting. 2 cl, 13 dwg

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