An underwater sealing structure of an electric push-pull rod

Abstract

The invention relates to an underwater sealing structure of an electric push-pull rod, which belongs to the field of sealing structures. The underwater sealing structure includes three parts: an equipment chamber component, a hard sheath component and a flexible sheath component. The invention is mainly used to solve the sealing problem of the electric push-pull rod when it works underwater for a long time. Its principle is to isolate the electric push-pull rod from the water environment by the flexible sheath assembly, and provide the skeleton for the flexible sheath assembly by the hard sheath assembly Support; when the electric push-pull rod stretches back and forth, the hard sheath assembly and the flexible sheath assembly can follow the movement of the power rod, ensuring watertightness while reducing the impact on the movement function of the electric push-pull rod. The significance of the present invention is that, on the premise of not changing the sealing structure of the electric push-pull rod itself, by adding an underwater sealing structure, the electric push-pull rod itself that does not have the ability to work underwater can work normally underwater, and the electric push-pull rod can be expanded. The range of environments that the tie rod can adapt to.

Description

technical field [0001] The invention relates to an underwater sealing structure of an electric push-pull rod, which belongs to the field of underwater sealing structures. Background technique [0002] As a linear drive power device, the electric push-pull rod is widely used in motion mechanisms such as robots and mechanical arms. [0003] However, the existing electric push-pull rods, due to their structural limitations, may cause faults such as circuit short circuit, lead screw corrosion, decreased accuracy or jamming when used underwater; , cable interface and other parts have been waterproofed, and a special waterproof sealing ring is used between the output rod and the cylinder body. However, due to the relative sliding between the output rod and the cylinder body during use, the waterproof sealing ring is also It is impossible to scrape off the water on the surface of the output rod. When working underwater for a long time, the water will slowly accumulate with the mov...

AI Technical Summary

Problems solved by technology

[0003] However, the existing electric push-pull rods, due to their structural limitations, may cause faults such as circuit short circuit, lead screw corrosion, decreased accuracy or jamming when used underwater; , cable interface and other parts have been waterproofed, and a special waterproof sealing ring is used between the output rod and the cylinder body. However, due to the relative sliding between the output rod and the cylinder body during use, the waterproof sealing ring is also It is impossible to scrape off the water on the surface of the output rod. When working underwater for a long time, the water will slowly accumulate with the movement of the output rod and penetrate into the cylinder of the electric push-pull rod, resulting in corrosion of the lead screw of the electric push-pull rod , leading to equipment failure or life reduction

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