Single-end-face mechanical sealing device

Abstract

The invention belongs to the technical field of mechanical sealing, and discloses a single-end-face mechanical sealing device. The single-end-face mechanical sealing device comprises a machine body, wherein a shaft rod is slidably connected to the interior of the machine body, a first sliding groove is formed in the side, which is located on the machine body, of the shaft rod, a second sliding groove is formed in the side, which is located on the shaft rod, of the machine body, a fixing block is fixedly connected to the interior of the first sliding groove, and a sliding rod is slidably connected to the interior of the fixing block. According to the single-end-face mechanical sealing device, piston plates and the fixing block are arranged between the machine body and the shaft rod, when the shaft rod is stressed to extrude the machine body towards one side, the piston plate on one side can extrude the machine body and the second sliding groove and the first sliding groove in the shaftrod, and thus, the circumstance that the service life of the sliding rod and the service life of a spring are influenced due to the fact that liquid flows into the second sliding groove and the firstsliding groove from a gap between the machine body and the shaft rod is avoided; and the piston plate on the other side can close the fixing block, so that two sides of the second sliding groove can prevent the liquid from flowing into or penetrating through the second sliding groove, the sealing performance of the mechanical sealing is improved, and the service life of parts is prolonged.

Description

technical field [0001] The invention belongs to the technical field of mechanical sealing, and discloses a single-end mechanical sealing device. Background technique [0002] A mechanical seal refers to a device that prevents fluid leakage and is composed of at least one pair of end faces perpendicular to the axis of rotation under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal to keep fit and slide relative to each other. The internal parts of the single-end mechanical seal device will be more or less in contact with the liquid, which will directly affect the sealing of the mechanical seal device and the service life of the parts of the mechanical seal device. Contents of the invention [0003] The purpose of the present invention is to provide a single-end mechanical seal device to solve the problem that the internal parts of the current mechanical seal device are in contact w...

AI Technical Summary

Problems solved by technology

[0002] A mechanical seal refers to a device that prevents fluid leakage and is composed of at least one pair of end faces perpendicular to the axis of rotation under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal to keep fit and slide relative to each other. The parts inside the single-end mechanical seal device will be more or less in contact with the liquid, which will directly affect the sealing of the mechanical seal device and the service life of the parts of the mechanical seal device

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