US 11,988,252 B2
Split-type swing angle adjustable aerostatic bearing device for rotor static balance, and air flotation support device for static balance of rotating ring-shaped parts
Zhansheng Liu, Harbin (CN); Shubo Yu, Harbin (CN); Yuanli Sun, Harbin (CN); and Guanghui Zhang, Harbin (CN)
Assigned to HARBIN INSTITUTE OF TECHNOLOGY, Harbin (CN)
Filed by HARBIN INSTITUTE OF TECHNOLOGY, Harbin (CN)
Filed on Nov. 5, 2021, as Appl. No. 17/519,632.
Application 17/519,632 is a continuation of application No. PCT/CN2020/088949, filed on May 7, 2020.
Claims priority of application No. 201910376022.0 (CN), filed on May 7, 2019.
Prior Publication US 2022/0056954 A1, Feb. 24, 2022
Int. Cl. G01M 1/04 (2006.01); F16C 32/06 (2006.01); G01M 1/12 (2006.01)
CPC F16C 32/0603 (2013.01) [F16C 32/0666 (2013.01); G01M 1/04 (2013.01); G01M 1/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A split-type swing angle adjustable aerostatic bearing device for rotor static balance, comprising:
a shaft base;
an upper support base;
a lower support base;
a bottom base;
an air inlet channel; and
an axial positioning device;
wherein a first semi-cylindrical surface is formed on the shaft base, the first semi-cylindrical surface is concave inwards and faces upwards, a plurality of air holes are disposed on the first semi-cylindrical surface; the shaft base is fixed on the upper support base, a sealed air cavity is disposed between the shaft base and the upper support base, the plurality of the air holes is communicated with the sealed air cavity, the sealed air cavity is connected with an external air supply device through the air inlet channel; the upper support base and the lower support base are hinged to drive an axis of the first semi-cylindrical surface to swing by a certain angle in a vertical direction, the lower support base and the bottom base are connected together;
the axial positioning device comprises a baffle plate, two guide rods, and an axial limiting shaft;
the two guide rods are slidably disposed on the shaft base, the baffle plate is fixed on the two guide rods, a bearing hole is disposed on a side, facing the shaft base, of the baffle plate; the axial limiting shaft is disposed in the bearing hole, and a conical surface is formed on the axial limiting shaft; an axis of the conical surface on the axial limiting shaft, the axis of the first semi-cylindrical surface of the shaft base, and axes of the two guide rods are parallel to each other, the conical surface on the axial limiting shaft is concentric with the first semi-cylindrical surface on the shaft base; two threaded holes are disposed on the shaft base, a top wire is disposed in each of the threaded holes, and the top wire is abutted on a respective one of the two guide rods.