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[CN 201620643556.7] force monitoring and protection device for prestressed frame of large hydraulic press
[CN 201620643556.7] Title of a Stress Monitoring and Protection Device for Prestressed Frames of Large Hydraulic Machines: Application Number of a Stress Monitoring and Protection Device for Prestressed Frames of Large Hydraulic Machines: CN 201620643556.7 Applicant: China Heavy Machinery Research Institute Co., Ltd. Application Date: 2016-6-24 Patent Type: Utility Model A Stress Monitoring and Protection Device for Prestressed Frames of Large Hydraulic Machines, including a pressing sleeve connected to a press rod, each pressing sleeve is equipped with a set of displacement sensor, the signal output of the displacement sensor is connected with the input of the electrical control system, and the output of the electrical control system is connected with the input of the hydraulic system. During pre-tightening, the pressing sleeve is in a compressed state and has a compression amount. By monitoring whether the compression amount of the corresponding pressing sleeve is consistent, it is judged whether the pre-tightening force of the corresponding tie rod is consistent and whether the required pre-tightening force is reached, and the consistency of the whole frame pre-tightening is quantitatively analyzed, the compression amount of the press sleeve is stored in the electrical control system; at the same time, the change of the compression amount of the press sleeve is monitored in real time during the entire operation cycle of the press, so as to monitor the pre-tightening state of the entire press frame. The utility model protects the entire frame, Reduce the shaking of the press.
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