Welding reinforcing device based on high-pressure water jet technology

Abstract

The invention discloses a welding reinforcing device based on a high-pressure water jet technology. The welding reinforcing device comprises a wall climbing trolley (1), a cable (2) and a control electric box (3); the control electric box (3) is connected with the wall climbing trolley (1) through the cable (2) to control starting and stopping, the operating speed and the operating direction of the wall climbing trolley (1); a nozzle moving system (8) capable of adjusting angles and distances of high-pressure nozzles relative to a weld seam is arranged at the front end of the wall climbing trolley (1), and a nozzle conversion system (9) with the multiple high-pressure nozzles is arranged at the front end of the nozzle moving system (8); and the nozzle conversion system (9) communicates with pipelines of the different high-pressure nozzles through conversion to achieve conversion of the high-pressure nozzles. According to the welding reinforcing device, the wall climbing trolley can bemanipulated to move, the angles and distances between the high-pressure nozzles and the weld seam are adjusted through the nozzle moving system, weld joint reinforcing is conducted by selecting the high-pressure nozzles of different types according to needs through the nozzle conversion system, and thus the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a welding strengthening device based on high-pressure water jet technology that can change nozzles and adjust nozzle angles and nozzle distances. Background technique [0002] Welding residual stress refers to the residual internal stress in the welded structure produced by the welded part due to the restraint of deformation during the welding heat process. During the service process of the component, the welding residual stress and other working stresses caused by the load are superimposed on each other, causing secondary deformation and redistribution of the residual stress, which will not only reduce the stiffness and stability of the structure but also reduce the stiffness and stability of the structure under the common temperature and medium. Under the action, it will also seriously affect the fatigue strength, resistance to brittle fracture, resistance to stress corrosion ...

AI Technical Summary

Problems solved by technology

Existing water jet strengthening devices have the disadvantages of large size, immobility, low efficiency, and high labor intensity. It is difficult to adjust the angle and distance between the water jet beam and the welded joint according to the actual working conditions. Difficult to make adaptive adjustments, large limitations, and cumbersome steps to replace nozzles when faced with different strengthening needs, reducing work efficiency

Images