Novel active air foil bearing based on PZTs and flexible hinges
A flexible hinge and foil bearing technology, applied in sliding contact bearings and other directions, can solve the problems of applying pre-pressure and small mechanical deformation, and achieve the effect of improving stiffness characteristics, improving stability and increasing critical speed
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. However, it can be understood that the following specific embodiments are only preferred technical solutions of the present invention, and should not be construed as limiting the present invention.
[0024] Such as figure 1 As shown, the new air foil bearing based on PZT and flexible hinge includes: bushing (1), PZT (2), flexible hinge (3), rigid push rod (4), steel ball (5), spring (6) , screw (7), wave foil (8) and top foil (9). Such as figure 2 As shown, the shaft sleeve (1) is processed by wire cutting to obtain three PZT installation channels evenly distributed along the circumferential direction and the corresponding flexible hinges (3) and rigid push rods (4), the top of the rigid push rod (4) is connected to The shaft sleeve (1) has a common inner cylindrical surface, and the PZT (2) is installed in the through groove; the s...
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