Bullet train overhaul management and control system and method

Abstract

The invention discloses a bullet train overhaul management and control system and method, and relates to the technical field of bullet train equipment overhaul. The system comprises a handheld terminal, a wireless torque wrench, a data server and a background management terminal; the background management terminal is used for sending an overhaul task to the handheld terminal; the handheld terminal is used for displaying the current subtask and reading the identification information in the identification code; the wireless torque wrench is used for fastening the corresponding bolt according to the preset torque value, and sending an overhaul result to the background management terminal and the data server; the background management terminal is further used for sending the overhaul result to the handheld terminal, and the handheld terminal is further used for updating the completion condition of the corresponding overhaul target according to the overhaul result and updating the current subtask when the corresponding overhaul target in the current subtask is completed. According to the system and the method, each torque value can be recorded in real time, the data authenticity is ensured, the installation torque is ensured to be within a qualified range, and later tracing is facilitated.

Description

technical field [0001] The invention relates to the technical field of motor vehicle equipment maintenance, in particular to a motor vehicle maintenance management and control system and method. Background technique [0002] In EMUs, bolts are one of the key components of production and assembly, and their fastening and loosening have always been an important part of daily maintenance operations. Preventing parts from falling off has always been the top priority, especially the shaft end bolts, skirt bolts, and bottom plate bolts that require a lot of daily disassembly and assembly. [0003] Bolt failure is mainly reflected in loosening and failure. In the process of bolt tightening, if the torque is too small to reach the pre-tightening force when tightening, the bolt will loosen. , the tightening force can exceed the yield stress limit, resulting in bolt damage and failure. Therefore, in the bolt tightening operation, the torque should be controlled within the qualified ...

AI Technical Summary

Problems solved by technology

[0004] At present, sound torque wrenches are mostly used in the maintenance of bullet train depots. The operation process cannot be monitored, and the tightening data of the operation cannot be collected in real time and in real time. After the operation, it cannot be effectively analyzed. After the operation is completed, the quality inspection personnel are called to inspect each bolt or the quality inspection personnel follow the mechanic together. Operation supervision and inspection is time-consuming, labor-intensive and inefficient, and cannot effectively improve the quality of maintenance operations

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