Electro-hydraulic co-rotating joint

Abstract

The invention discloses an electro-hydraulic co-rotating joint which comprises an inner ring and an outer ring arranged on the outer side face of the inner ring, and the inner ring and the outer ring can rotate relatively. The outer ring comprises an electric brush combination and a sealing shell; the electric brush combination and the sealing shell sleeve the inner ring, the electric brush combination is in contact connection with the inner ring through an electric brush, and the sealing shell is in contact connection with the inner ring; an outlet is formed in the sealing shell in the radial direction, an inlet is formed in the inner ring in the axial direction, an annular liquid flow channel is formed between the sealing shell and the inner ring, the outlet is communicated with the annular liquid flow channel, a plurality of connecting channels are formed in the inner ring in the radial direction, and two ends of each connecting channel are connected with the annular liquid flow channel and the inlet respectively; and the inlet, the connecting channel, the annular liquid flow channel and the outlet form a cooling liquid transmission channel. Under the condition of an extremely limited space, electro-hydraulic integrated design is carried out, the structure is compact, the same part can achieve rotary transmission of electric signals and rotary transmission of a cooling liquid, and meanwhile, the electric signals and the cooling liquid do not influence each other.

Description

technical field [0001] The invention relates to the technical field of electronic equipment rotary transmission devices, in particular to an electro-hydraulic composite rotary joint. Background technique [0002] With the continuous increase of power consumption of electronic equipment systems, the application requirements of multi-functional multimedia rotary joints in electronic equipment systems are becoming more and more urgent. The traditional multi-functional and multi-media rotary joints mostly adopt the form of a combination of rotary transmission devices with different media such as electric slip rings, smooth rings, and liquid rotary joints. Whether it is an axial stacking combination or a radial nesting combination, the volume is large, and the rotation accuracy is difficult to guarantee. At present, many electronic equipment systems have particularly high requirements for function, precision, heat dissipation, and miniaturization. It is difficult to realize the ...

AI Technical Summary

Problems solved by technology

Whether it is an axial stacking combination or a radial nesting combination, the volume is large, and the rotation accuracy is difficult to guarantee

At present, many electronic equipment systems have particularly high requirements for function, precision, heat dissipation, and miniaturization. It is difficult to realize the rotary transmission of electro-hydraulic or photoelectric liquid media in an extremely limited space, which is difficult for traditional multi-functional multi-media rotary joints.

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