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[CN 201911384423.7] Condition Monitoring Method for Multi-link Mechanism of Large Mechanical Press
[CN 201911384423.7] Title of Condition Monitoring Method for Multi-link Mechanism of Large Mechanical Press: Application Number of Condition Monitoring Method for Multi-link Mechanism of Large Mechanical Press: CN 201911384423.7 Applicant: Xi 'an Jiaotong University Application Date: 2019-12-28 Patent Type: Invention Application The present invention discloses a condition monitoring system for multi-link of large mechanical press, and expounds the signal characteristics of multi-link of large mechanical press after wear, the position of each measuring point and the arrangement of sensor cable are designed. The vibration signal of the connecting rod pin position is collected by the vibration-temperature integrated sensor, and the output shaft speed is collected by the magnetic induction key phase sensor. The collected signals are analyzed to determine the current wear amount, lubrication state and upper and lower die clearance values of the press multi-link structure. Compared with the monitoring of the number of actions of the distributor plunger at all levels, this method realizes the monitoring and diagnosis of the wear of the multi-link, and makes up for the monitoring blind spot in the case of lubrication end fracture and leakage.
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