Dust cover for air cylinders

Abstract

The invention discloses a dust cover for air cylinders. The dust cover for the air cylinders comprises a movable cover body formed between the cylinder wall of the first air cylinder and the cylinder wall of the second air cylinder. A through hole and an air inlet are formed in the cylinder wall of the second air cylinder. Multiple protrusions are arranged on the upper wall and the lower wall of the air inlet. The portion, connected with the air inlet, of the through hole is fixedly provided with a filtering piece. A collection tank is arranged on the step face of the cylinder wall of the first air cylinder. A sealing cover is arranged at the joint of the first air cylinder and the second air cylinder. The sealing cover extends downwards to form an air inlet channel. A filtering mesh is arranged at the bottom end of the air inlet channel. According to the dust cover for the air cylinders, the through hole and the air inlet are formed in the cylinder wall of the second air cylinder, and it is guaranteed that the air cylinders ascend and descend normally; by arranging a labyrinth type air inlet structure, the filtering piece and the filtering screen, the amount of dust entering the movable cover is reduced greatly, the reliability of the air cylinders in work is improved, and the service life of the air cylinders in work is prolonged; and by arranging the collection tank, the negative effects of excessive dust accumulation on the air cylinders is lowered, and the stroke precision of the air cylinders is guaranteed.

Description

technical field [0001] The technical field of mechanical automation of the present invention relates to a telescopic cylinder, in particular to a cylinder dustproof cover device. Background technique [0002] Multi-stage telescopic cylinders are often used as lifting mechanisms in automation equipment. When the cylinders are lowered, a closed space will be formed between each stage of cylinders. The outside atmosphere cannot enter this space, and the cylinders cannot be lowered normally. At present, most of the solutions are to open a small hole on the cylinder wall to turn the confined space into a mobile cover, thereby exchanging gas with the outside world, so that the cylinders at all levels can be lowered or raised normally. Although this structure solves the ventilation problem, but The debris generated during the working process of the equipment and the dust from the outside are easily sucked into the moving cover, resulting in increased friction during the movement of...

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Problems solved by technology

[0002] Multi-stage telescopic cylinders are often used as lifting mechanisms in automation equipment. When the cylinders are lowered, a closed space will be formed between each stage of cylinders. The outside atmosphere cannot enter this space, and the cylinders cannot be lowered normally.

At present, most of the solutions are to open a small hole on the cylinder wall to turn the confined space into a mobile cover, thereby exchanging gas with the outside world, so that the cylinders at all levels can be lowered or raised normally. Although this structure solves the problem of ventilation, but The debris generated during the working process of the equipment and the dust from the outside are easily sucked into the moving cover, resulting in increased friction during the movement of the cylinder, causing heat generation, and in serious cases, affecting the normal operation of the cylinder and reducing the service life of the cylinder

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