Magnetic suspension momentum sphere adopting magnetic wheel driving
A magnetic levitation and momentum ball technology, applied in the aerospace field, can solve the problems of complex levitation control, limited application, high cost, etc., and achieve the effect of simple levitation control, simple and compact structure, and small volume
Active Publication Date: 2015-12-30
TSINGHUA UNIV +1
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Problems solved by technology
The existing magnetic levitation momentum ball technology is mostly a magnetic levitation momentum ball with permanent magnet synchronization, which is complicated to manufacture and expensive, which is not conducive to miniaturization and cost reduction, which limits its application
Most of the existing magnetic levitation momentum balls driven by inductive magnetic wheels cannot realize the integration of levitation and drive, which is not conducive to the attitude control of satellites; moreover, the levitation is mostly realized by suction, which is not an inherently stable levitation system, and levitation control is complicated
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Embodiment Construction
[0015] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0016] figure 1 It is a schematic diagram of an embodiment of a magnetic levitation momentum ball driven by a magnetic wheel provided by the present invention, which includes a mover 2 and six stators 1, and an air gap 3 is formed between each stator 1 and mover 2, and the mover 2 is in the shape of a spherical shell , the six stators 1 are divided into three groups, the axes of the three groups of stators are orthogonal to each other, each group includes two stators, and the two stators in each group are arranged symmetrically with the spherical center of the mover 2; each stator 1 contains Magnetic wheel 4 and stator motor 5.
[0017] figure 2 It is a schematic diagram of the stator structure in the embodiment, each stator 1 includes a stator motor 5 and a magnetic wheel 4 (only a part of the magnetic wheel is drawn), the upper surface...
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The invention provides a magnetic suspension momentum sphere adopting magnetic wheel driving. The magnetic suspension momentum sphere is used for adjusting the satellite attitude and comprises three sets of stators and a rotor. The rotor is in a spherical shell shape and is made of a nonferromagnetic conductive metal material. The axes of the three sets of stators are mutually orthogonal. Each set of stators comprises two stators which are symmetrically arranged about the sphere center of the rotor. Each stator comprises a stator motor and a magnetic wheel which is installed on the stator motor and driven by the stator motor to rotate. The upper surfaces of the magnetic wheels are spherical surfaces concentric with the outer surface of the rotor, the spherical radius of the upper surfaces of the magnetic wheels is larger than that of the outer surface of the rotor, and air gaps are reserved between the magnetic wheels and the outer surface of the rotor. Suspended driving and rotary driving integration of the magnetic suspension momentum sphere is achieved. The magnetic suspension momentum sphere is simple and compact in structure, small in size, light in weight, low in cost and high in efficiency; as the suspension belongs to inherent stable suspension, suspension control is simple.
Description
technical field [0001] The invention relates to a magnetic levitation momentum ball driven by a magnetic wheel, which is used as an actuator for satellite attitude adjustment, and belongs to the technical field of aerospace. Background technique [0002] In-orbit satellites undertake specific missions of space exploration, development, and utilization. Such missions require attitude stability or attitude maneuvering for satellite attitude control. As a key technology of satellite attitude control, the actuator for satellite attitude stabilization and maneuvering has been widely concerned. The momentum wheel based on the principle of momentum moment conservation is a commonly used technical solution. The existing mature technology is the mechanical ball bearing momentum wheel. Although the magnetic levitation momentum wheel proposed by some scholars overcomes the mechanical friction loss of the mechanical ball bearing momentum wheel, the momentum wheel has problems such as la...
Claims
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Login to View More IPC IPC(8): H02K16/00H02N15/00B64G1/24
Inventor 张鸣朱煜陈安林杨开明成荣
Owner TSINGHUA UNIV