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[CN 201620964599.5] Hydraulic Press Frame Pre-tightening Device
[CN 201620964599.5] Title of Hydraulic Press Frame Pre-tightening Device: Application Number of Hydraulic Press Frame Pre-tightening Device: CN 201620964599.5 Applicant: Nantong Forging Equipment Co., Ltd. Application Date: 2016-8-29 Patent Type: Utility Model The utility model relates to the field of hydraulic press frame installation, in particular to a hydraulic press frame pre-tightening device. It includes a tie rod, a lock nut, an upright post, an upper beam, and a lower beam. The tie rod penetrates the upper beam and the lower beam and the two ends of the tie rod are respectively locked by the lock nut. The upper beam and the lower beam are equipped with an upright post. Through, a backing plate is installed between the lock nut and the upper beam, and threaded holes are evenly distributed on the lock nut, and high-strength screws are screwed in the threaded holes, the lower end of the high-strength screw is above the backing plate. The advantages are simple design, easy to use, no need to use special devices, and the use of torque wrenches commonly used in general workshops can complete pre-tightening and meet assembly requirements. At the same time, this pre-tightening device can also be used for the pre-tightening of the locking nut on the upper beam of the four-column hydraulic press and the pre-tightening of the combined frame of the mechanical press similar to the hydraulic press frame.
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