Self-measurement piston displacement hydraulic cylinder and using method thereof

Abstract

The invention discloses a self-testing piston movement amount type hydraulic cylinder which comprises a base, a cylinder barrel, a cylinder cover, a guide sleeve, a piston, a piston rod, a pull wire type piston movement amount sensor, a magnetism-sensitive integrated block and the like. The cylinder barrel is placed on the base of the hydraulic cylinder, the cylinder cover is arranged on the cylinder barrel and the guide sleeve is placed on a wall of the cylinder barrel in the cylinder cover. The piston is movably placed in the cylinder barrel, the piston rod of the piston penetrates out of the guide sleeve and a pit is formed in the middle of the top of the base. A pull wire pulled out of the pull wire type piston movement amount sensor is connected with a hanging ring on the piston and is pulled out or retreats along with movement of the piston. According to the self-testing piston movement amount type hydraulic cylinder, the hydraulic cylinder and the piston movement amount sensor are integrated so that the hydraulic cylinder can test the movement amount when the hydraulic cylinder is used for pushing and pulling an object. The self-testing piston movement amount type hydraulic cylinder has the advantages of being good in integration degree, capable of achieving double-direction measurement, large in measuring range, high in precision, safe, reliable, convenient to operate, capable of outputting measurement data in real time and the like.

Description

technical field [0001] The invention relates to a hydraulic cylinder which is equipped with a piston moving amount sensor and can automatically test the moving amount of the piston, in particular to a self-testing piston moving amount type hydraulic cylinder. Background technique [0002] At present, when the piston rod of the hydraulic cylinder pushes and pulls an object, a displacement sensor is often used to measure the displacement of the object. If the position of the fulcrum of the displacement sensor changes when the object moves, it will bring inconvenience and error to the measurement of the displacement of the object. Contents of the invention [0003] Aiming at the deficiency of using displacement sensors to measure the displacement of objects pushed and pulled by hydraulic cylinders, the present invention proposes a self-measurement piston movement type hydraulic cylinder and its use method. It is installed with a pull-wire piston movement sensor inside the cyli...

AI Technical Summary

Problems solved by technology

[0002] At present, when the piston rod of the hydraulic cylinder pushes and pulls an object, a displacement sensor is often used to measure the displacement of the object. If the position of the fulcrum of the displacement sensor changes when the object moves, it will bring inconvenience and error to the measurement of the displacement of the object.

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