Horizontal type rack for large precise instruments and devices

• Main Authors: YUE ZHONGYU, XU JIN, REN CHANGZHI, YE YU, ZHANG XIAJIE
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2018
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

A horizontal type rack for large precise instruments and devices comprises a pitching shaft, an orientation shaft, crossed arms, a middle block and a base, and the orientation shaft and a height shaftare orthogonal in space; and due to linkage of the orientation shaft and the height shaft, movement of a controlled object is achieved. The horizontal type rack for the large precise instruments anddevices is characterized in that the pitching shaft and the orientation shaft are each provided with an active type bias magnetic levitation bearing restraining the axial movement of a rotating shaft,and an active type bias magnetic levitation bearing restraining the radial movement of the rotating shaft, and corresponding protecting bearings and a position feedback system are arranged; and a signal of the position feedback system is input to a control system, and the control system controls permanent magnetic synchronous torque motors driving the pitching shaft and the orientation shaft; andthe control system further