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[CN 201620963516.0] Monitoring Device for Heating Pre-tightening Elongation of Pull Rod of Hydraulic Press
[CN 201620963516.0] Title of Hydraulic Press Tie Rod Heating Pretightening Elongation Monitoring Device: Application Number of Hydraulic Press Tie Rod Heating Pretightening Elongation Monitoring Device: CN 201620963516.0 Applicant: Nantong Forging Equipment Co., Ltd. Application Date: 2016-8-29 Patent Type: Utility Model The utility model relates to the field of large hydraulic press frame tie rod heating pretightening, in particular to a hydraulic press tie rod heating pretightening elongation monitoring device. It includes a displacement sensor, a signal line, a mounting base, a pull rod, a control box, an actual value module, a set value module and an alarm. The displacement sensor is mounted on the mounting base, the mounting base is placed at the lower end of the pull rod, the upper end of the displacement sensor contacts the lower end of the connecting rod, the displacement sensor is connected to the control box through the signal line, and the control box is respectively connected to the actual value module, the set value module and the alarm through the alarm. The advantages and practical effects are: the heating preload takes a long time, so the detection device can allow the operator to not have to measure the elongation during this period of time, which is equivalent to saving labor. The device can visually display the current elongation to facilitate the operator to understand the degree of pre-tightening. At the same time, it can remind workers to turn off the power in time, which can avoid unnecessary waste of electric energy.
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