The invention provides a vacuum air floatation rotary table structure which comprises a middle shaft and a shaft sleeve arranged on the periphery of the middle shaft, the outer edge of the shaft sleeve is fixedly connected to an inner ring of the lower end of a vacuum tank, the middle shaft is located in the vacuum tank, equipment to be tested is fixedly installed at the upper end of the middle shaft, and an air floatation gap is formed between the periphery of the middle shaft and the inner ring of the shaft sleeve. The air inlet hole and the air outlet hole are respectively communicated with the air floatation gap, the air floatation gap is communicated with the air injection equipment through the air inlet hole and faces the air through the air outlet hole, and the equipment to be tested can rotate relative to the shaft sleeve through the middle shaft. According to the vacuum air floatation rotary table structure, the vacuumizing equipment is communicated to the vacuum sealing gap through the air suction hole, so that a compressed air medium in the air floatation gap is prevented from being guided into the vacuum tank, the environment stability of testing of equipment to be tested in the vacuum tank is guaranteed, and the testing precision is improved.

    本发明提供了一种真空气浮转台结构,包括中轴及其外围设置的轴套,轴套外缘固定连接至真空罐下端内圈,中轴位于真空罐内,中轴的上端固定安装待测设备,中轴的外围与轴套内圈设有气浮间隙,轴套上分别设有进气孔和出气孔,进气孔和出气孔分别连通至气浮间隙,气浮间隙通过进气孔连通至注气设备,气浮间隙通过出气孔对空,待测设备能够通过中轴与轴套相对转动。本发明所述的真空气浮转台结构,抽真空设备通过吸气孔连通至真空密封间隙,防止气浮间隙内的压缩气介质导入真空罐内,保障了待测设备在真空罐内测试的环境稳定,提高测试精度。


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    Title :

    Vacuum air floating rotary table structure


    Additional title:

    真空气浮转台结构


    Contributors:

    Publication date :

    2022-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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