High-precision intelligent periodic-rolling rolling machine for metal seamless tube material

Abstract

The invention belongs to the technical field of metal seamless tube material rolling, and particularly relates to a high-precision intelligent periodic-rolling rolling machine for a metal seamless tube material. The high-precision intelligent periodic-rolling rolling machine for the metal seamless tube material comprises a main machine body and a power input device. The power input device is connected with a power input shaft through a coupler. The power input shaft is installed in a first bearing seat on the left side of the main machine body. The power input shaft is provided with two herringbone driving gears. The two herringbone driving gears are each meshed with a herringbone driven large gear, and the herringbone driven large gears are installed on gear shafts. The gear shafts are rotationally installed on the main machine body. The herringbone driven large gears are connected with connection rods through crank pin shafts in an eccentric manner. Stress sensors are arranged on themiddle portions of the connection rods and electrically connected with a control console, so that the stress state of the connection rods is monitored through the control console; and if the stress exceeds an allowed value, the control console sends out a signal to generate a halt action, and then components of the rolling machine are protected.

Description

technical field [0001] The invention belongs to the technical field of rolling metal seamless pipes, in particular to an intelligent rolling mill for periodic rolling of high-precision metal seamless pipes. Background technique [0002] The periodic pipe mill is a reciprocating longitudinal steel pipe mill with a feeding mechanism. It concentrates the deformation process of the capillary in each pass and stage in the rolling process in the same conical rolling groove with a continuously changing cross section. Under the joint action of the roll and the mandrel, the roll rotates to push the capillary to undergo plastic deformation and drive the metal to flow. In the periodic rolling process, there are two processes in which the direction of the capillary movement is opposite and the same as the direction of the roll movement. When the roll rotates once, The capillary is deformed by forging and finishing rolling through the pass of the rolling mill. When the metal inlet has un...

AI Technical Summary

Problems solved by technology

However, due to the large deformation process of the periodic pipe rolling mill and the rolling characteristics different from other rolling mills, the rolled blank pipe has many defects, some of which are serious and difficult to overcome. The defects of waste pipes mainly include: uneven wall thickness of waste pipes, bamboo joints, crushing, abrasions, etc.

In addition, most of the traditional periodic pipe rolling mills are pipe rolling equipment without feedback control and dynamic adjustment. The problems of low production efficiency, poor quality of produced pipes, and difficult maintenance of equipment are becoming more and more obvious; moreover, due to the lack of integrated modern control technology The disadvantages such as low intelligent control ability of the equipment, insufficient self-protection ability of the equipment, and poor stability of the rolling process have become increasingly prominent; therefore, it is imminent to develop an intelligent rolling mill equipment for intelligent seamless pipe cycle rolling

Images