Durable cylinder

Abstract

The invention discloses a durable cylinder. The durable cylinder comprises a sleeve and a piston, wherein air supply holes, electrified magnetic poles and adjustable buffer valves are symmetrically arranged at two ends of the sleeve; inductors are respectively mounted at two top ends of the inner wall of the sleeve, and are connected with the electrified magnetic poles; a first magnetic pole layer is arranged on the inner wall of the sleeve; the piston is mounted in the sleeve; and the side surface of the piston is wrapped with a second magnetic pole layer. Through the mode, the durable cylinder adopts a magnetic levitation technology to enable the piston to be not contacted with the cylinder wall to achieve good sealing performance; air in the cylinder is not liable to leak outwards; and the maintenance is convenient.

Description

Technical field [0001] The present invention relates to the field of electromechanical technology, in particular to a durable cylinder. Background technique [0002] Cylinder is a relatively common energy conversion device. It converts the pressure energy of compressed air into mechanical energy to achieve linear reciprocating motion, swing, rotation or impact action. Due to different application fields, there are many types of cylinders and they are different. It can be divided into two categories, namely rod cylinder and rodless cylinder. [0003] The existing rod cylinder is connected to a sealed piston at one end of a movable rod, and the movable rod drives the piston to move as a kind of mechanical power. However, the structure of this rod cylinder is relatively bulky, so it is necessary for installation. The space is also large, and the rod cylinder may experience uneven force due to the movable rod, which will affect the control positioning and poor accuracy. [0004] Existi...

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Problems solved by technology

[0003] The existing rod cylinder is connected to a sealing piston at one end of a movable rod, and the movable rod drives the piston to move, which is used as a mechanical power, but the structure volume of this rod cylinder is relatively large, so the installation required The space is also large, and the rod cylinder may be unevenly stressed due to the movable rod, which will affect the control positioning and the accuracy is poor

[0004] Existing rodless cylinders are usually mechanical. For example, mechanical contact rodless cylinders have a chute in the axial direction of the cylinder tube, and the piston and slider move on the upper part of the chute. Compared with rod cylinders, this mechanical contact The installation space of the type rodless cylinder is small, and the control accuracy is high. However, due to the setting of the chute, the sealing performance is poor, and the air is prone to external leakage. Moreover, the ordinary rodless cylinder has a complex structure and takes up a large space.

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