An apparatus for processing weld two simultaneous end of the pipe formed in situ Cut DEFECTIVE pipeline sections by thermal cutting

摘要

The device is intended for thermal cutting at ends of pipe welding chamfer formed at the cut site of the defective portion. Two crosses (5) are mounted on the rod (4) so ​​that when installing the unit in the pipeline, each of the crosspieces (5) will draw into the inner surface of one of the ends (2) of the pipeline. Around each crosspiece (5) on the rod (4) coaxial with the wear bushing (13) rigidly attached perpendicular to the rod (14) and turning the sleeve (13) around its axis. Centering rods (4) in the pipe is achieved when the distance from the head (15) of the rod (14) to the wall of the pipeline around the same diameter end (2) of the pipeline. Centering rod (4) is performed by adjusting the length of the cross ends (5). On the rod (4) for each end (2) is fitted pipeline holder (16) with a rack (19), wherein the fixed bracket (23) with the cutter (1) and its holder (3). The yoke (16) rotates the cutter (1) around the longitudinal axis of the end (2) and the pipeline over its surface. Rotation occurs under the action of a drive gear (30) mounted on the rod (4) for each holder (16). As a result carried thermal cutting end (2) of the pipeline under a chamfer. For qualitative welding chamfer need accurate rotation axis trimming cutter (1) to the longitudinal axis of the end (2) of the pipeline in which the cutter is installed (1). Adjustment is possible due to the fact that the cage (16) is fitted on the rod (4) with clearance. If the deviation of these axes has occurred in a vertical plane, tightening the ends of the brackets (45) mounted vertically on a rod (4), curving the rod (4) and moving within the clearance holder axis (16) and hence rotational axis cutter ( 1) in the direction opposite to the deviation. If the deviation has occurred, e.g., in a horizontal plane, the axis of rotation of the cage (16) is moved by means of screws (18) to the longitudinal axis of the corresponding end (2) of the pipeline. In this case, do not use additional devices, and adjustment axes is a shorter term. 16 s. PF-ly, 10 yl.