Linear pneumatic drive device for overturning platform

Abstract

The invention discloses a linear pneumatic drive device for an overturning platform. The linear pneumatic drive device comprises a rocking arm and a horizontal double-sliding-rod linear guide rail, asleeve is arranged at the lower end of the rocking arm and used for connecting with a hinge shaft flat key of the overturning platform, a central axis direction of the sleeve is perpendicular to thatof the rocking arm, a slider mechanism is slidably connected on the double-sliding-rod linear guide rail, a cylinder is fixed with one end of the double-sliding-rod linear guide rail, a piston rod ofthe cylinder is arranged along the sliding direction of the slider mechanism and fixedly connected with the slider mechanism, a cylinder body cannot vertically and frequently swing in the overturningprocess of the overturning platform and the extending and contracting process of the piston rod, abnormal abrasion of a sealing ring of the piston rod is reduced, and the service life of the cylinderis prolonged. Use shows that overall running is more stable, the stroke of the cylinder can be controlled, and positioning is more accurate.

Description

technical field [0001] The invention belongs to the field of driving mechanical devices for an overturning platform used in tobacco industry production, and in particular relates to a linear pneumatic driving device for an overturning platform. Background technique [0002] The turning and turning of present turning platform mainly relies on the hinged shaft fixed on it to drive and rotate, and the two ends of the hinged shaft are fixed on the support by belt seat bearings, and the support is fixed on the ground of the workshop with expansion bolts. One end of the hinged shaft protrudes outwards from the bearing at the corresponding end. This end of the hinged shaft is a journal with a keyway with a diameter of 50 mm. The journal is connected to the rocker arm through a 16 mm flat key interference fit. The center of the rocker arm The direction of the axis is perpendicular to the direction of the central axis of the hinge shaft, and then the end of the rocker arm is connecte...

AI Technical Summary

Problems solved by technology

When the center of gravity of the overturning platform exceeds the hinge axis, the cylinder piston rod provides a positive direction load, and when the center of gravity of the overturning platform exceeds the hinge axis, the cylinder piston rod provides a negative direction load, resulting in friction between the cylinder piston rod and the seal The force produces very frequent changes in magnitude and direction, causing the sealing ring to wear out quickly, resulting in the scrapping of the expensive cylinder and affecting the progress of production

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