Spiral welded pipe unit

1. Inner and outer welding devices of spiral welded pipe units:

The internal welding device is controlled by the OC2 operating box and the external welding device is controlled by the OC3 operating box. The OC2 operation box mainly controls the advancement and retreat of the inner welding head and the fine adjustment of the rear axle. The operator adjusts the inner welding head and the rear axle according to the operation nameplate on the OC2 operation box according to the working condition of the equipment. The OC3 operation box mainly controls the lifting of the outer welding device and the lifting of the outer welding head. The operator adjusts the external welding device according to the external welding work according to the operation nameplate on the OC3 operation box. The movement of the inner and outer welding heads is driven by a DC torque motor, which has stalling and short-time overload characteristics.

Second, the spiral welded pipe unit rear axle and flying cut car:

The rear axle and fly-cutting car are mainly controlled by the OC4 operating box. The flying cut car has two working modes: manual and automatic. Under normal circumstances, it is an automatic working mode. The hand and the automatic switch are turned to the automatic position. When the steel pipe reaches the travel switch, the sound and light alarm is issued, and the operator performs the cutting work. After reaching the travel switch, the top wheel of the small car rises, and the fly-cut car runs forward along with the steel pipe. At the same time, the operator cuts the steel pipe. After the cutting is completed, the automatic switch is turned to the neutral position, the top wheel is lowered, and the manual is lowered. Push the fly-cut cart to its original position. Then, operate the dial switch on the OC4 operation box to pull the steel pipe out. When the steel pipe leaves the rear axle and rolls to the gantry, return the pipe keeper to the original position, and at the same time, turn the hand and automatic switch to the automatic position, waiting for the next steel pipe to be cut.