Leak-proof hollow plunger hydraulic oil cylinder

Abstract

The invention relates to the technical field of hydraulic oil cylinders, in particular to a leakproof hollow plunger hydraulic oil cylinder which comprises a cylinder barrel, a driving motor, an oil bin, a dust removal bin, a flushing mechanism and a hollow plunger, the driving motor is fixed to one side of the cylinder barrel, an output shaft is arranged at the top of the driving motor, and the hollow plunger is slidably connected into the cylinder barrel; an oil bin is welded to the top end of the cylinder barrel, the hollow plunger is connected to the middle of the oil bin in a penetrating mode, a dust removal bin is fixed to the top end of the oil bin, the hollow plunger is connected to the middle of the dust removal bin in a penetrating mode, and a flushing mechanism is connected to the top end of the dust removal bin. In most cases, dust and other impurities adsorbed when a plunger works can reduce the lubricating effect of an oil film, and along with the improvement of the movement frequency of a machine and the prolonging of the operation cycle, the adsorbed dust accelerates the abrasion and fatigue of a sealing system, so that a plunger cylinder is easy to leak after frequently working for a period of time, and the service life of the plunger cylinder is prolonged. Therefore, the invention provides the leakproof hollow plunger hydraulic oil cylinder.

Description

technical field [0001] The invention relates to the technical field of hydraulic oil cylinders, in particular to a leak-proof hollow plunger hydraulic oil cylinder. Background technique [0002] The hollow plunger hydraulic cylinder is widely used. The quality of the plunger cylinder is directly related to the normal operation of the production line equipment, and the plunger hydraulic cylinder is a single-acting hydraulic cylinder, which can only move in one direction by hydraulic pressure. , The return stroke of the plunger depends on other external forces or the self-weight of the plunger, which is suitable for long-stroke hydraulic cylinders. [0003] However, the oil film on the surface of the plunger exposed to the plunger cylinder during work is too thick and cannot be collected and processed well. In addition, the oil film cannot be completely brought back into the hydraulic cylinder. After accumulation, ring-shaped oil stains flow out, and in places with large dust ...

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Problems solved by technology

[0003] However, the oil film on the surface of the plunger exposed to the plunger cylinder during work is too thick and cannot be collected and processed well. In addition, the oil film cannot be completely brought back into the hydraulic cylinder. After accumulation, ring-shaped oil stains flow out, and in places with large dust When working in the environment, the oil stains left on the side wall of the plunger will absorb dust when the plunger is doing a long stroke, and the dust and other debris absorbed by the plunger will reduce the lubrication effect of the oil film, and with the increase of the machine's movement frequency and operating cycle The dust absorbed will accelerate the wear and fatigue of the sealing system, causing the plunger cylinder to leak easily after a period of frequent work. The working medium will flow out to the outside beyond the boundary of the cavity, and the dust will seriously pollute the hydraulic oil in the cylinder. This will not only cause waste of working media and pollution of the working environment, but also cause equipment failure or personal accidents.

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