Device for continuous measurement of wall thickness of ductile cast iron pipe

The utility model provides a device for continuous measurement of the wall thickness of a ductile cast iron pipe. The device comprises a movable measurement rack, a fixed measurement rack, a to-be-measured workbench and a computer-aided system. The movable measurement rack has a base. A driving motor is mounted on the base and is connected with a screw rod. A cantilever is arranged on the screw rod in a cooperative manner and is equipped with a laser ranging sensor thereon. The fixed measurement rack has a bracket, on which a laser ranging sensor is arranged. The two laser ranging sensors are connected with the computer-aided system. The to-be-measured workbench is provided with a self-propelled trolley, which is equipped with a riding wheel in connection with the driving motor. With a simple structure, the device of the utility model is convenient to operate and achieves high measurement precision. In addition, by means of the device, to-be-tested pipes are not damaged, and the influence of uneven pipe die points on the thickness measurement of the pipe wall can be eliminated. The device is suitable for continuous measurement of axial and radial wall thicknesses of ductile cast iron pipes.