Hydraulic system good in seal performance and capable of reducing leakage

Abstract

The invention discloses a hydraulic system good in seal performance and capable of reducing leakage. The hydraulic system good in seal performance and capable of reducing leakage comprises a main hydraulic cylinder, branch hydraulic cylinders, oil pipes, an oil tank and pump heads in the branch hydraulic cylinders. An oil outlet one-way valve is arranged on each oil pipe connected with the main hydraulic cylinder and the corresponding branch hydraulic cylinder. Each oil outlet one-way valve corresponds to one press switch. An oil suction one-way valve is arranged on the oil pipe connected with the main hydraulic cylinder and the oil tank. The oil pipes connected with the branch hydraulic cylinders and the oil tank are each provided with a check valve. The hydraulic system good in seal performance and capable of reducing leakage is characterized in that the oil pipes connected with the main hydraulic cylinder and the branch hydraulic cylinders are each provided with a cavity and a ventilation layer, and each cavity is arranged at the position where hydraulic oil is conveyed from a low portion to a high portion; each ventilation layer is a cylindrical sleeve outside the corresponding oil pipe, one end of each ventilation layer is opened, the other end of each ventilation layer is connected with the corresponding cavity, the inner portion of each ventilation layer and the surface of the corresponding oil pipe form a cavity layer, and the surface of each ventilation layer is provided with nine small holes; a vent hole is formed in the outer portion of the oil tank; and the bottom of the main hydraulic cylinder is connected with three oil pipe connectors, the upper portion of the main hydraulic cylinder is connected with the three press switches, and three connecting shafts are arranged in the main hydraulic cylinder and enable the oil pipe connectors and the press switches to be connected.

Description

technical field [0001] The invention relates to a hydraulic system with good sealing performance, in particular to a hydraulic system with good sealing performance and reduced leakage. Background technique [0002] In 1795, Joseph Braman of England used water as a working medium in London and applied it to industry in the form of a hydraulic press, giving birth to the world's first hydraulic press. In 1905, the working medium was changed from water to oil, which was further improved. After the First World War, hydraulic transmission was widely used, especially after 1920, it developed more rapidly. Hydraulic components only began to enter the formal industrial production stage during the 20 years at the end of the 19th century and the beginning of the 20th century. In 1925, Vickers invented the pressure balanced vane pump, which laid the foundation for the gradual establishment of the modern hydraulic component industry or hydraulic transmission. Konstantin Niske's theore...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to cool down the hydraulic system and reduce oil leakage. The purpose is to provide a workpiece positioning and clamping device to solve the problems of cooling down the hydraulic system and reducing oil leakage.

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