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[CN 201721545351.6] Press tie rod fastening device
[CN 201721545351.6] Title of a press tie rod fastening device: Application number of a press tie rod fastening device: CN 201721545351.6 Applicant: Rongcheng Forging Machine Tool Co., Ltd. Application Date: 2017-11-19 Patent Type: Utility Model The utility model discloses a press tie rod fastening device, which includes a rotary table and a bottom bracket. The outer side of the rotary table is provided with a fixing hole, and a pull rod is provided in the fixing hole, an elastic gasket is arranged between the pull rod and the rotary disc, an outer sleeve is arranged on the inner side of the rotary disc, a thrust ball bearing is arranged inside the outer sleeve, a sliding support plate is arranged on the outer side of the thrust ball bearing, a supporting lock plate is arranged on the outer side of the sliding support plate, a central column is arranged in the center of the sliding support plate, a locking nut is arranged on the inner side of the central column, and the bottom bracket, A fixing screw hole is provided on the outer side wall of the bottom bracket, an inner sleeve is provided on the outer circle of the inner side wall of the bottom bracket, a limit ring is provided in the middle of the inner sleeve, and the limit ring is provided with Shock absorption spring. The beneficial effects are that the sealing effect is good, the entry of dust or external debris can be avoided, and the service life of the damping spring can be prolonged.
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