Hydraulic cylinder

Abstract

The invention belongs to the technical field of hydraulic equipment and particularly discloses a hydraulic cylinder. The hydraulic cylinder includes a cylinder barrel; a cylinder bottom and a cylindercover are disposed at the two ends of the cylinder barrel correspondingly; a piston rod is disposed in the cylinder barrel; a piston is disposed at one end of the piston rod and is in sealing and sliding connection into the cylinder barrel; the piston rod is in sealing and sliding connection with the cylinder cover; a guiding mechanism is further included; an annular hollow cavity is disposed onthe side wall of the cylinder barrel and extends to the end surface of the cylinder cover; a supporting disc is fixedly connected to the position, located outside the cylinder barrel, of the piston rod; a plurality of guiding rods are hinged to the end face, close to the cylinder cover, of the supporting disc; a plurality of through holes which allow the guiding rods to pass are formed in the cylinder cover; the guiding rods penetrate through the through holes to extend into the annular hollow cavity and are screw rods; a plurality of gears are rotationally connected into the annular cavity; threaded holes matched with the screw rods are formed in the gears; the guiding rods penetrate through the threaded holes; tooth rings are rotationally connected into the cylinder barrel; the multiplegears are internally engaged with the tooth rings; and a plurality of fan blades are disposed on the end faces of the gears.

Description

technical field [0001] The invention belongs to the technical field of hydraulic equipment, and in particular relates to a hydraulic cylinder. Background technique [0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is stable. It is widely used in various mechanical hydraulic systems. It has simple structure and reliable operation. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is stable, so it is widely used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston an...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hydraulic cylinder to solve the problem that the traditional hydraulic cylinder cannot provide real-time feedback on the coaxiality between the piston, piston rod and cylinder barrel, resulting in excessive deformation or wear of the piston or piston rod

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