Torque motor for satellite antenna pointing mechanism
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A pointing mechanism and satellite antenna technology, applied in the field of torque motors, can solve the problems of low power consumption, high torque and small volume of torque motors, and achieve favorable motor torque, good sinusoidality, and reduced motor weight Effect
Inactive Publication Date: 2010-02-03
BEIHANG UNIV
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Problems solved by technology
These two forms of motors are difficult to meet the requirements of the satellite antenna pointing mechanism for torque motors with low power consumption, high torque, and small size
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[0022] Such as figure 2As shown, the torque motor for satellite antenna pointing mechanism of the present invention is characterized in that: by cup-shaped rotating shaft 1, left stop ring 2, left end cover 3, left bearing 4, housing 5, outer stator core 6, outer hollow cup stator 7. Outer Halbach magnet 8, outer rotor core 9, inner rotor core 10, inner Halbach magnet 11, right retaining ring 12, inner hollow cup stator 13, inner stator core 14, right bearing 15 and right end cover 16, outer hollow cup The stator 7 is connected with the outer stator core 6, the radial inner side of the outer hollow cup stator 7 is the outer Halbach magnet 8, the outer Halbach magnet 8 is connected with the outer rotor core 9, the radial inner side of the outer rotor core 9 is the inner rotor core 10, and the inner rotor The radially inner side of the iron core 10 is the inner Halbach magnet 11, the radially inner side of the inner Halbach magnet 11 is the inner hollow cup stator 13, and the r...
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Abstract
A torque motor for a satellite antenna direction mechanism utilized in a facility, mainly comprise a cup-shaped rotating shaft, a left limit ring, a left end cover, a left bearing, a housing, an ironcore of an outside stator, an outside hollow cup-shaped stator, an outside Halbach magnet body, an iron core of an outside rotor, an iron core of an inside rotor, an inside Halbach magnet body, a right limit ring, an stator of an inside hollow cup-shaped stator, an iron core of an inside stator, a right bearing and a right end cover, wherein the outside Halbach magnet body, the iron core of an outside rotor, the iron core of an inside rotor and the inside Halbach magnet body are connected with the cup-shaped rotating shaft, which are rotating parts of the motor, and others are static parts ofthe motor. The invention utilizes the outside Halbach magnet structure and the inside Halbach magnet structure, which can largely reduce the thickness of the iron core and increase the air gap flux density and the sinusoidal degree of the air gap, therefore reducing the volume, weight, switch disturbing moment and energy loss of the motor, and accomplishing the outout torque of the torque motor significantly.
Description
technical field [0001] The invention relates to a torque motor, in particular to a torque motor with a Halbach magnet structure for a satellite antenna pointing mechanism, which is especially suitable for small volume, low power consumption, low speed and other occasions. Background technique [0002] Traditional torque motors mostly use brushless DC motors or permanent magnet synchronous motors. In order to increase the output torque, their structural form is often a large-diameter-length ratio. There are strict requirements on indicators such as power consumption, and to achieve a large output torque in a limited volume, the existing motors often adopt a double-stator structure, such as figure 1 As shown, the existing double-stator motor is divided into two forms, one is figure 1 The concentric structure shown in a, the other is figure 1 The parallel structure shown in b (utility model patent: ZL01244751.X), in figure 1 In the concentric structure of a, 1 is the rotor c...
Claims
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Application Information
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