Ball-supported electric valve armature suspension structure

Abstract

The invention relates to a ball support type electric valve armature suspension structure. The ball support type electric valve armature suspension structure comprises an armature assembly and a valve. The armature assembly is arranged in an inner cavity of the valve and comprises an armature and balls, the armature and the valve are of rotator structures, the balls are spherical balls, N grooves are circumferentially uniformly formed in positions close to the end surfaces of two ends of the armature in the circumferential directions, each ball is arranged in the corresponding groove, each groove is in the shape of a combination of a spherical segment and a cylinder, each spherical segment is of a hollow structure, the diameter of each spherical segment is identical to that of the corresponding cylinder, and the diameter of each ball is smaller than the diameter of the spherical segment or the cylinder in the corresponding groove. The ball support type electric valve armature suspension structure has the advantages that flexible support elements in designs for the traditional armature suspension structures are omitted, armature structures can be simplified, the quantity of components can be reduced, the armature structures are compact and light, and the high reliability and quick response characteristics of products can be guaranteed while miniature designs for the products are implemented.

Description

technical field [0001] The invention belongs to the technical field of spacecraft space fluid management, in particular to a ball-supported electric valve armature suspension structure, which is suitable for the non-sliding friction structure design of the movable parts of the spacecraft electric valve. Background technique [0002] Due to the small size and weight of the micro-nano satellite, the propulsion sub-system has put forward the requirements of compact / modular integrated design, among which the electric valve is used as the propellant management and flow adjustment valve of the propulsion system, and the number of systems used is large, so Products must be designed for miniaturization to meet the requirements of high integration, small size and light weight of the system. [0003] In order to ensure the reliability of the product, the armature flexible suspension design scheme in the traditional electric valve cannot meet the miniaturization design requirements of ...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the reliability of the product, the armature flexible suspension design scheme in the traditional electric valve cannot meet the miniaturization design requirements of the product due to the large number of its own structural parts and the difficulty in miniaturization and processing of elastic components.

[0004] The current high-performance electric valves usually adopt the flexible suspension design of the armature, and its core component is a sheet-shaped membrane spring. This structure generally has a large number of parts, more than 5, and the connection is complicated. Usually, electron beam welding or laser welding is required. Process, complex production process

More importantly, the leaf film spring is limited by processing factors, and it is difficult or even impossible to apply it to valves with small radial dimensions, such as radial dimensions < 10mm.

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