Automatic testing system and automatic testing method for operation of hydraulic wrench

Abstract

The invention relates to an automatic testing system and an automatic testing method for operation of a hydraulic wrench, wherein the system and the method are applied in screw tightening and bolt maintenance operations in a wind power industry. Through recording a torque value and a bolt rotating angle when bolt tightening is finished in bolt tightening or checking, process quality control and long-term big data analysis are realized. Furthermore the automatic testing system is preset through a technical formula, thereby realizing automatic pressure adjustment, realizing an integral foolproof function through automatic determining bolt tightening, and preventing bolt torque exceeding, torque insufficiency and bolt omission caused by man errors. The automatic testing system and the automatic testing method further have advantages of preventing hydraulic tool fault stoppage maintenance time through full life-cycle management of a hydraulic system, and ensuring stable operation of tools.

Description

technical field [0001] The invention relates to a quality control technology, in particular to a hydraulic wrench automatic inspection system and method. Background technique [0002] At present, when wind turbines are installed on site, the installation of large parts relies on a large number of high-strength bolts of different specifications to fix and connect them. As a high-strength bolt fastening tool, hydraulic wrench is widely used in installation. In the on-site installation, there are strict technical requirements for the tightening of the hydraulic wrench. The hydraulic wrench is powered by a hydraulic pump, and the output port of the hydraulic pump is generally connected to a pressure gauge, which is convenient for the operator to monitor during the construction process. After installation, the product is judged to be qualified by random inspection. However, due to human reasons, there are over-torque and under-torque phenomena of high-strength bolts in the proc...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that whether the installation of high-strength bolts is in place affects the quality of wind turbines, and proposes an automatic inspection system and method for hydraulic wrench operations. The torque operation process of high-strength bolts can be traced; the torque operation state is visualized; the torque operation process system is fool-proof ;Tool status abnormal automatic alarm;Tool life cycle management

Images