Small-size rolling type conducting ring assembly applied to space

Abstract

The invention discloses a rolling type conducting ring assembly applied to a sailboard driving mechanism for transmitting energy sources and electrical signals to stars. The rolling type conducting ring assembly comprises rollers (1), an inner ring (2), an outer ring (3) and a retainer (4); the outer surface of the inner ring (2) and the inner surface of the outer ring (3) are respectively provided with two channels for accommodating the rollers (1); bosses (5) are arranged between the channels; the retainer (4) is fixed on the bosses (5) by uniformly-arranged positioning wheels (6); idler wheels (7) are arranged among the positioning wheels (6); and at the two sides of the upper part and the lower part of the retainer (4), the rollers (1) are sleeved at the idler wheels (7) and are clamped in the channels by means of elastic deformation of the rollers. In the rolling type conducting ring assembly, the retainer is arranged on the bosses of the inner ring and the outer ring, so that relative positions among the rollers are fixed to make the plurality of rollers kept mutual isolation during rolling and avoid abrasion caused by friction; higher assembling precision can be achieved under a condition of lower processing precision of the rollers; and the reliability of a rolling ring is improved.

Description

technical field [0001] The invention belongs to the technical field of mechatronics, and in particular relates to a conductive ring used for a sailboard driving mechanism to transmit energy and electric signals to a star. Background technique [0002] The solar panel drive mechanism is an essential part of a long-life three-axis stable satellite. Its main function is to support and drive the solar array to orient itself toward the sun, and transmit the energy and electrical signals obtained by the solar array to the star. Since it cannot be backed up, the solar panel drive mechanism is one of the few single-point sources of failure on the star. Once it fails, it will directly cause the entire star to lose all energy and fail. [0003] The conductive ring is a key component for the sailboard drive mechanism to transmit energy and electrical signals to the star. At present, most of the conductive rings used in the drive mechanisms of satellite sailboards at home and abroad ar...

AI Technical Summary

Problems solved by technology

Therefore, in the assembly of multiple rollers, due to the high tolerance requirements between the rollers, the machining accuracy of the rollers and the retaining rollers is high, the assembly is difficult, and waste products are likely to be generated, which is not conducive to practical application. wear, reducing the reliability of the raceway

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