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Porous material nozzle with adjustable air permeability

A technology of porous material and porous material is applied in the field of nozzle structure of air flotation system, which can solve the problem that the air permeability of porous material nozzle cannot be adjusted.

Inactive Publication Date: 2015-12-30
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defect that the air permeability of porous material nozzles cannot be adjusted, the present invention provides a cheap porous material nozzle with adjustable air permeability

Method used

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  • Porous material nozzle with adjustable air permeability
  • Porous material nozzle with adjustable air permeability
  • Porous material nozzle with adjustable air permeability

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Experimental program
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Effect test

Embodiment

[0017] see figure 1 and figure 2 , the porous material nozzle with adjustable air permeability includes a cylindrical tubular shell 4, one end of the shell 4 is a closed end, the end face of the closed end is uniformly provided with end face pores, and the other end of the shell 4 is an open end; the closed end of the shell 4 A flexible porous material 2 is installed inside.

[0018] A pressure plate 3 is installed in the housing 4 corresponding to the flexible porous material 2, the pressure plate 3 is in the shape of a bottle cap, and vent holes are evenly distributed on its axial closed end; between the radial side wall of the pressure plate 3 and the inner wall of the housing 4 To cooperate. The end face diameter of shell 4 is φ 25.5mm, the hole pitch of end face air hole is 2.5mm, the diameter φ 1.6mm of end face air hole, the hole pitch of air hole on the pressure plate is 3mm, the diameter φ 2.5mm of air hole. The open end of the shell 4 is connected to the bulkhead...

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Abstract

The invention relates to a porous material nozzle with adjustable air permeability. The nozzle comprises a cylindrical-pipe-shaped shell with one closed end. End face air holes are evenly distributed in the end face of the closed end. A flexible porous material is arranged in the closed end of the shell. A pressing plate is further correspondingly arranged. The shell and the pressing plate are in movable fit. Vent holes are evenly distributed in the pressing plate. The open end of the shell is provided with a choke plug through threaded connection. An air supply hole connector is arranged in the axial middle of the choke plug. The pressing plate is pressed on the flexible porous material through the choke plug, the pressing degree of the pressing plate for the flexible porous material can be adjusted by rotating the choke plug, or else the pressing plate is separated from the flexible porous material. Needed accuracy of the end faces of the shell of the nozzle can be achieved through a conventional precision machining measure. Replacement of different flexible porous materials can be conveniently achieved through additional arrangement of the pressing plate and the choke plug, and the air permeability of the porous material nozzle can be adjusted according to actual requirements.

Description

technical field [0001] The invention belongs to the technical field of air flotation systems, and in particular relates to a nozzle structure of the air flotation system. Background technique [0002] In the air flotation system, the porous material is used to make the nozzle, and there are many fine air supply holes evenly distributed on the entire nozzle surface, so the nozzle made of porous material can improve the air film characteristics of the air flotation system. There are applications in gas bearings and air buoyancy load cells. The surface roughness and flatness of the air flotation nozzle are very high, so precision machining is required to obtain it. If the nozzle is directly made of porous material, its surface must be machined. In actual work, the porous surface is processed by turning and grinding. The surface of the porous material forms a dense layer with high throttling due to the clogging of pores. When this material is used as a restrictor, the dense la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/02B05B1/14B05B15/00
CPCB05B1/02B05B1/14B05B15/00
Inventor 黄斌易嘉靖陶佳月
Owner HEFEI UNIV OF TECH
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