Cone-shaped friction-free rotary air supply air floatation device

Abstract

A cone-shaped friction-free rotary air supply air floatation device includes an air floatation shaft, an air floatation sleeve and a base, wherein an air floatation shaft is sleeved with the air floatation sleeve; a tiny clearance is reserved between the air floatation shaft and the air floatation sleeve; the matching surface of the air floatation shaft and the air floatation sleeve is cone-shaped; a base is fixed with the bottom surface of the air floatation sleeve; orifices are uniformly distributed in the surface of a cone-shaped ring surface throttling bearing housing; the cone-shaped ring surface throttling bearing housing is fixed on the inner wall of an air floatation stock and forms an air inlet high-pressure cavity with the air floatation stock; an air floatation air inlet is formed in the air floatation stock and communicated with the air inlet high-pressure cavity; an air supply air inlet is formed at the bottom of the air floatation stock; the bottom of the air floatation shaft forms a high-pressure cavity with the air floatation stock and the base; the air supply air inlet is communicated with the high-pressure cavity; a blind hole is punched at the center of the air floatation shaft to be communicated with a top air outlet; air discharge holes are uniformly distributed in the peripheral direction of the air floatation stock and communicated with clearances formed by the air floatation shaft and the air floatation sleeve; a circle of concave air discharge groove is formed in the periphery where the air discharge holes are formed; and the air discharge holes, the orifices and the air inlet of the air floatation sleeve are mutually separated. The cone-shaped friction-free rotary air supply air floatation device can be used for continuous air supply and is free from the influence of air tube disturbance.

Description

technical field [0001] The invention relates to the field of air flotation. Background technique [0002] With the development of science and technology, gas lubrication is often used instead of ordinary mechanical lubrication, and high-pressure gas is introduced into the gap between objects in relative motion to form a gas film, avoiding direct contact to achieve frictionless motion. [0003] Air flotation devices have different ways of forming gas films and different gas supply methods. Usually, the gas pipe is used to introduce gas into the high-pressure chamber, but no matter which gas supply method is used, the air pipe must not disturb the air flotation device. For some Compared with the air flotation device with air source movement, there is a big problem in air flotation gas supply. For example, the side of the vertically placed folding hinges connected by hinges, the bottom uses multiple air bearing pads to realize the frictionless unfolding movement in the plane, ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiency of the impact of the tracheal bending disturbance when the existing air flotation device supplies air, the present invention provides a conical frictionless rotating air supply air flotation device that can continuously supply air and is not affected by the trachea disturbance

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