An active maglev turntable with 10 degrees of freedom for stable aiming
A technology of magnetic levitation and degree of freedom, which is applied in the direction of camera devices, etc., to achieve strong interchangeability and versatility, to achieve precision manufacturing, and to eliminate the effects of transmission errors
Active Publication Date: 2021-12-31
BEIHANG UNIV
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Problems solved by technology
[0005] The present invention aims to solve the problems of mechanical simulation experiments and output torque testing of inertial actuators such as gyroscopes or flywheels in large-scale visual measurement cameras
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Embodiment Construction
[0058] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0059] see figure 1 , Figure 1A , Figure 1B , Figure 1C As shown, the present invention designs a stabilized aiming active magnetic levitation turntable with 10 degrees of freedom used in a large-scale visual measurement camera. The stabilized aiming active magnetic levitation turntable is used to replace the traditional stabilized aiming turntable in a large-scale visual measurement camera To realize the stabilization of the optical axis of the imaging system and the tracking of the target. It aims to solve the problems of mechanical simulation experiments and output torque testing of inertial actuators such as gyroscopes or flywheels in large-scale visual measurement cameras. The traditional fixed support arm in the large-scale visual measurement camera is limited by the natural frequency of the structure, and it is inevitable to resonate at a certai...
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The invention discloses a stable aiming active magnetic levitation turntable with 10 degrees of freedom, in which driving mechanisms (10, 11) are symmetrically installed on the outer circular surface of a base (4). The circumference of the disc body (3) is provided with a plurality of integrated radial and axial magnetic bearing rotor assemblies (2) with the same structure, and four integrated radial and axial magnetic bearings are symmetrically distributed on the outer circumference of the magnetic levitation rotating platform (1). The stator assembly (6, 7, 8, 9) is provided with a single-axis turntable driving mechanism (5) at the center of the magnetic levitation rotating platform (1). Under the energized condition, the radial and axial magnetic bearing integrated stator assembly (6, 7, 8, 9) is first energized to suspend the radial and axial magnetic bearing integrated rotor assembly (2), on the one hand, the single-axis turntable drive mechanism (5) Rotate the radial and axial magnetic bearing integrated rotor assembly (2), on the other hand, the radial and axial magnetic bearing integrated rotor assembly (2) is driven by the drive mechanism (10, 11) to achieve complete suspension in clockwise, counterclockwise and vertical directions sports. The invention adopts the active vibration suppression function of the magnetic suspension bearing to realize mechanical isolation of the micro-vibration of the active magnetic suspension turntable, so as to achieve the purpose of ultra-stable and ultra-quiet.
Description
technical field [0001] The invention relates to a turntable for a large-scale visual measurement camera, more particularly, refers to a stable aiming active magnetic suspension supported by an active magnetic suspension bearing that can complete clockwise movement, counterclockwise movement, and vertical movement in a magnetic suspension state turntable. Background technique [0002] In recent years, with the advancement of magnetic levitation technology, high-speed magnetic levitation motors have developed rapidly. They have the advantages of high speed, high power density, small size, fast response, and can directly drive loads. They are widely used in high-speed magnetic levitation blowers, magnetic levitation ultra-high vacuum molecules, etc. High-speed rotating equipment such as pumps, magnetic levitation energy storage flywheels and magnetic levitation torque gyroscopes. The bearing capacity of the magnetic bearing is determined by design and is limited by its size. I...
Claims
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IPC IPC(8): G01C11/02
CPCG01C11/02
Inventor 王坤郑世强钟清周银锋刘刚
Owner BEIHANG UNIV