Oil storage and actively oil supply integrated device for space flywheel

Abstract

The invention discloses an oil storage and actively oil supply integrated device for a space flywheel, which belongs to the technical field of space tribology. The device comprises an oil container, wedge-shaped guide grooves and drainage columns. The oil container comprises a cover plate and a lower oil storage cavity which are connected with each other in an adhering mode by using an adhesive or a mechanical mode; the side wall of the lower oil storage cavity is provided with 4 to 8 radial installing holes; the outer surface of the lower oil storage cavity vertical to the installing holes is provided with drainage holes with the same number as that of the installing holes; the position of the cover plate vertical to the drainage holes is provided with circular holes with the same number and the same size as those of the drainage holes; the wedge-shaped guide grooves are formed in the installing holes in an interference or splicing mode; and the drainage columns are arranged in the drainage holes or the circular holes respectively in the interference or splicing mode. In the same volume, the device of the invention can carry several times more lubricating oil and the utilization ratio of the lubricating oil is close to 100 percent, so that longer lubrication life of a bearing is realized; and the device has the advantages of accuracy, controllability and long acting, effectively prolongs the service life of a flywheel and improves the reliability of the flywheel.

Description

technical field [0001] The invention belongs to the technical field of space tribology, and relates to a motor support bearing lubrication system for a space attitude control flywheel, in particular to an integrated device for oil storage and active oil supply of the bearing lubrication system. Background technique [0002] The development of satellites requires the attitude control system to have high precision and long life and to provide precise control torque. Among the many factors that affect the reliability and long life of satellites, the long-life lubrication of the bearings for the attitude control flywheel and its reliability Sexual issues are a key factor. [0003] The main form of bearing failure is the failure of the lubrication system, especially the one-time loss of the lubricating oil carried by the flywheel through the migration of oil vapor during the working process, and the volatilization of the lubricating oil through the vapor is more obvious in the sp...

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Problems solved by technology

[0006] In order to solve the problems of large volume, weak oil supply capacity, incapable of active control and short service life of the oil supply device in the prior art, the present invention provides a space flywheel oil storage device with strong oil supply capacity and active control function. Integrated oil supply device

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