| The design of the rotary casing running device''s slip teeth is unreasonable, which can easily cause wear or damage to the casing. To address the above issues, a numerical calculation model for the clamping sleeve of the slip is established to study the influence of slip tooth shape and slip tooth structural parameters on mechanical properties. The results show that under the action of different slip tooth shapes, the maximum stress of the slip plate and sleeve is located at both ends, and the flat top tooth shape is the most reasonable. In addition, the contact pressure, slip tooth stress, and sleeve stress vary with the front angle of the slip tooth α、 Posterior horn β It increases with the increase of tooth pitch S and decreases with the increase of tooth top width W. Finally, with contact pressure, slip tooth stress, and casing stress as optimization objectives, and slip tooth structural parameters as design variables, the optimized slip tooth structural parameters using orthogonal experimental method are the slip tooth front angle α= 20 °, rear angle β= 45 °, tooth height H=1.2mm, and tooth pitch S=3mm. The results of this study can provide reference for the design of rotary casing running device and its slip teeth. |
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