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Parallel-type satellite antenna attitude adjusting apparatus

A technology for satellite antennas and adjustment devices, applied to antennas, electrical components, etc., can solve problems such as difficult control design and complex kinematics solution, and achieve the effects of easy motion control design, reduced production requirements and production prices, and simple structure

Pending Publication Date: 2018-06-01
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a parallel satellite antenna attitude adjustment device to solve the complex kinematics solution and difficult control design caused by the strong kinematic coupling of parallel mechanisms used in satellite antenna attitude adjustment in the prior art

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Embodiment Construction

[0022] The technical solution of the present invention will be further described through specific implementation manners below in conjunction with the accompanying drawings.

[0023] Such as figure 1 , 2 As shown, a parallel satellite antenna attitude adjustment device, wherein 10 is a fixed platform, 20 is a moving platform, and 30 is a satellite antenna. The three branch kinematic chains connecting the moving platform 20 and the fixed platform 10 are respectively the first branch kinematic chain L1, the second branch kinematic chain L2, and the third branch kinematic chain L3. Servo motors M1 and M2 respectively drive the first branch kinematic chain L1, The movement of the second branch kinematic chain L2, the second branch kinematic chain L2 has a circular arc guide rail 2-1.

[0024] The fixed platform 10 is a rectangular base, on which an arc guide rail 2-1 is arranged, the two ends of the arc guide rail 2-1 are closed, and the satellite antenna 30 is fixed on the movi...

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Abstract

The invention relates to a parallel-type satellite antenna attitude adjusting apparatus, and adopts two rotary parallel mechanisms which are not coupled. The parallel-type satellite antenna attitude adjusting apparatus comprises a fixed platform, a movable platform and three branch movement chains connecting the fixed platform and the movable platform. The first branch movement chain comprises four movement pairs, a first rotary pair, a second universal joint, a third movable pair and a fourth universal joint are successively distributed in a direction from the fixed platform to the movable platform. The second branch movement chain comprises three movement pairs, and a first arc movement pair, a second movement pair and a third universal joint are successively distributed in a direction from the fixed platform to the movable platform. The third branch movement chain comprises two rotary pairs with axes being perpendicularly intersected. The antenna is installed on the movable platformby virtue of a bolt, two servo motors separately independently control an elevation angle and an azimuth angle of the antenna, so that an attitude of the antenna can be adjusted. The parallel-type satellite antenna attitude adjusting apparatus solves the problems in the prior art that the kinetics solution is complicated due to the high kinetic coupling performance of the parallel connection mechanism for adjusting the satellite antenna attitude, the control and design are difficult and the like.

Description

technical field [0001] The invention relates to the fields of mechanics and robots, in particular to a parallel satellite antenna attitude adjustment device. Background technique [0002] Due to its excellent characteristics in terms of bearing capacity, precision and stiffness, parallel mechanisms have received widespread attention and practical applications in the world, such as the Delta mechanism applied to 3D printers, and the spherical three-degree-of-freedom parallel mechanism applied to bionic eyes. Mechanism, rope type parallel mechanism applied to sky eye feed device, 3-PRS parallel mechanism applied to imaginary axis parallel machine tool. However, most parallel mechanisms have strong kinematic coupling, which makes the mechanism complicated in terms of control design, path planning and assembly. [0003] The invention of radio technology has expanded people's understanding of signal transmission, and antennas, as an essential facility for people to receive or tr...

Claims

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Application Information

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IPC IPC(8): H01Q3/08
CPCH01Q3/08Y02D30/70
Inventor 张彦斌荆献领李向攀陈子豪许泽华
Owner HENAN UNIV OF SCI & TECH
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