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Single-action hydraulic cylinder with inner leakage display function

A hydraulic cylinder and internal leakage technology, which is applied in the field of hydraulic cylinders, can solve problems such as external leakage and pollute the working environment, and achieve the effect of preventing external leakage of oil

Active Publication Date: 2017-05-31
SHANGHAI SSOEC MARINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 piston and The extension of the 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., because the single-acting hydraulic cylinder has only one working chamber to participate in the work, such as the lower chamber of the single-acting hydraulic cylinder. , if there is a small amount of leakage from the seal on the piston, it enters 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. Liquid level position, and transmit the liquid level position data to peripheral equipment for display and alarm, and timely grasp the internal leakage status of single-acting hydraulic cylinders

Method used

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Embodiment Construction

[0013] like figure 1 , figure 2 As shown, a single-acting hydraulic cylinder with internal leakage display includes a cylinder block 1, a first screw 2, a second screw 14, an upper end cover 3, a piston 4, a piston rod 5, a spring 6, a first piston seal 7, Piston second seal 8, plug 9, air filter 10, oil pipe 11, gasket 13, hollow screw 16, hinged joint 17, oil pipe bracket 18 and liquid level sensor 19; the cylinder body 1 is in a "concave" shape , the lower part of the cylinder block 1 is provided with a hydraulic cylinder oil inlet 1-1, a hydraulic cylinder first oil passage 1-2 and a hydraulic cylinder second oil passage 1-3, the hydraulic cylinder oil inlet (1-1 ) is located on the side wall of the cylinder block (1), the hydraulic cylinder oil inlet 1-1, the hydraulic cylinder first oil passage 1-2 and the hydraulic cylinder second oil passage 1-3 are connected with the inside of the cylinder block 1 to form "L"-shaped passage; the upper end cover 3 is composed of a m...

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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 an internal leakage display, belonging to the technical field of electrical 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, a small amount of leakage inside the hydraulic cylinder will not affect the normal operation of the hydraulic cylinder; for single-acting hydraulic cylinders, the piston and The extension of the 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 the single-acting hydraulic cylinder only has one working chamber to participate in the work, such as the lower chamber of the single-acting hydraulic cylinder participates in the work , If there is a small...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/20F15B19/00
CPCF15B15/14F15B15/1428F15B15/1433F15B19/005
Inventor 钱雪松
Owner SHANGHAI SSOEC MARINE ENG CO LTD
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