Ultra-high pressure nitrogen energy-saving auxiliary cylinder

Abstract

The invention relates to the field of an excavator and a loader, in particular to an ultrahigh-pressure nitrogen energy-saving auxiliary cylinder. The ultrahigh-pressure nitrogen energy-saving auxiliary cylinder comprises a cylinder body, a piston, a piston rod and a lubricating oil pipe, wherein the piston is arranged in the cylinder body; the interior of the cylinder body is divided into two cavities; the piston rod is arranged in one cavity and the cavity is a rod cavity; no piston rod is arranged in the other cavity, and the cavity is a rod-free cavity; one end of the piston rod is connected with a fixed piston; the other end of the piston rod extends out from one end of the cylinder body; the lubricating oil pipe is connected with the outer walls at the two ends of the cylinder body; a check valve is arranged on the lubricating oil pipe. Due to the fact that in an operation process of the ultrahigh-pressure nitrogen energy-saving auxiliary cylinder, additional mechanical energy is not consumed, the energy is saved, and heat of a hydraulic system is reduced; on the premise that the weight of a machine is the same, the operation stability is improved; energy can be accumulated through nitrogen, potential energy loss is further reduced, heat release is reduced, carbon emission is reduced, the mechanical efficiency is improved, the service life of a machine part is prolonged, the fuel consumption is reduced, and the work cost is reduced; the ultrahigh-pressure nitrogen energy-saving auxiliary cylinder is simple in structure, independent and convenient to use.

Description

technical field [0001] The invention relates to the field of excavators and loaders, in particular to an ultra-high pressure nitrogen energy-saving auxiliary cylinder. Background technique [0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swing motion). 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. [0003] 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 and a piston rod, a sealing device, a buffer device and an exhaust device. Buffers and exhausts are application specific an...

AI Technical Summary

Problems solved by technology

[0006] However, the production of large nitrogen gas spring system is difficult, with high precision and high cost

[0007] That is to say, whether nitrogen spring or hydraulic cylinder is used alone, there will be certain disadvantages, and the best energy-saving and labor-saving effects cannot be achieved.

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