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The advantages and disadvantages of walking beam cold bed are: minimal scratch and deformation, high utilization rate, but the mechanism is complex and the construction cost is high.
The stepping cold bed comprises a fixed beam, an active beam, a transverse mechanism and a lifting mechanism, which are characterized by: The lifting device comprises a lifting guide mechanism, The lifting guide mechanism comprises a lifting seat for supporting the active beam and a wedge-shaped lifting guide surface fixed on the active beam and matched with the lifting seat. The wedge-shaped lifting guide surface comprises a lifting incline at both ends with the same inclined direction and a median horizontal plane between the two lifting inclines. The distance between the top surface of the active beam and the median horizontal plane is equal to The distance between the top surface of the fixed beam and the matching point/surface between the lifting seat and the median horizontal plane.
The transverse motion mechanism has a transverse hydraulic cylinder, a transverse motion cylinder base, a transverse motion pendulum rod and a transverse motion connecting rod. The middle pivot of the transverse motion hydraulic cylinder body is connected with the transverse motion cylinder base, one end of the transverse motion hydraulic cylinder is connected with the transverse motion pendulum rod, one end of the transverse motion pendulum rod is connected with the transverse motion connecting rod, and the other end of the transverse motion connecting rod is connected with the stepping beam. The transverse pendulum rod is also pivotly connected with a transverse pendulum rod main shaft, and the transverse pendulum rod can rotate around the transverse pendulum rod main shaft;
The lifting mechanism has a lifting hydraulic cylinder, lifting cylinder base, lifting pendulum rod and lifting pull rod, one end of the lifting hydraulic cylinder and the lifting cylinder base is pivoted, the other end of the lifting hydraulic cylinder is pivoted with the lifting pendulum rod, one end of the lifting pendulum rod is pivoted to one end of the lifting rod, the other end of the lifting rod is connected with the lifting beam. The pendulum rod is also pivot-connected with the pendulum rod main shaft, the pendulum rod can rotate around the pendulum rod main shaft;
The base of the transverse cylinder and the base of the lifting cylinder are fixed on a fixed plane.
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