A single-acting hydraulic cylinder with internal leakage display

Abstract

The invention discloses a single-action hydraulic cylinder with an inner leakage display function. The single-action hydraulic cylinder comprises a cylinder body, a first screw, a second screw, an upper end cap, a piston, a piton rod, a spring, a fist piston seal, a second piston seal, a plug, an air purifier, an oil pipe, a sealing gasket, a hollow screw, a hinge connector, an oil pipe bracket, a liquid level sensor and the like. According to the single-action hydraulic cylinder with the inner leakage display function, the liquid level sensor is mounted on the side face of a nonworking cavity of the single-action hydraulic cylinder and senses the liquid level position, liquid level position data are transmitted to peripheral equipment for display and alarm, and the inner leakage condition of the single-action hydraulic cylinder is mastered in time; and if the liquid level is higher than a certain position, oil in the nonworking cavity of the hydraulic cylinder is released through the oil pipe, and oil outer leakage is prevented. The single-action hydraulic cylinder is simple in structure and reliable in work, the inner leakage condition of the single-action hydraulic cylinder can be mastered, oil outer leakage is prevented, and the single-action hydraulic cylinder has wide application prospects.

Description

technical field [0001] The invention relates to a hydraulic cylinder, in particular to a single-acting hydraulic cylinder with internal leakage display, and belongs to the field of electric and electromechanical technology. Background technique [0002] At present, hydraulic cylinders are widely used in many fields. For double-acting hydraulic cylinders, since the upper and lower working chambers are involved in the work, the slight leakage inside the hydraulic cylinder will not affect the normal operation of the hydraulic cylinder; for single-acting hydraulic cylinders, The extension of the piston and piston rod is realized by the push of high-pressure oil, and the retraction needs to be realized by external force, such as spring force, etc. Since only one working chamber of the single-acting hydraulic cylinder participates in the work, such as the lower part of the single-acting hydraulic cylinder If there is a small amount of leakage from the seal on the piston, it will e...

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Problems solved by technology

[0002] At present, hydraulic cylinders are widely used in many fields. For double-acting hydraulic cylinders, since the upper and lower working chambers are involved in the work, the slight leakage inside the hydraulic cylinder will not affect the normal operation of the hydraulic cylinder; for single-acting hydraulic cylinders, The extension of the piston and piston rod is realized by the push of high-pressure oil, and the retraction needs to be realized by external force, such as spring force, etc. Since only one working chamber of the single-acting hydraulic cylinder participates in the work, such as the lower part of the single-acting hydraulic cylinder If there is a small amount of leakage from the seal on the piston, it will enter the upper chamber of the single-acting hydraulic cylinder, and the upper chamber of the single-acting hydraulic cylinder will continue to accumulate, eventually forming external leakage and polluting the working environment. For some important workplaces, such as, Nuclear power plants, etc., this situation is absolutely not allowed. Therefore, the present invention proposes a single-acting hydraulic cylinder with internal leakage display. A liquid level sensor is installed on the side of the non-working chamber of the single-acting hydraulic cylinder. The measured liquid level position, and transmit the liquid level position data to the peripheral equipment for display and alarm, and timely grasp the internal leakage status of the single-acting hydraulic cylinder

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