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Electromagnetic-piezoelectric-mixed-driving-based three-degree-of-freedom spherical motor

A hybrid drive, degree of freedom technology, applied in electrical components, electromechanical devices, etc., can solve problems such as too small output torque, and achieve the effect of increasing output torque and increasing output torque

Inactive Publication Date: 2012-02-15
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in view of the problem of too small output torque encountered in the current research on ball motors, the patent application of the present invention proposes a ball motor driven in a hybrid mode based on electromagnetic and piezoelectric ceramic sheets

Method used

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  • Electromagnetic-piezoelectric-mixed-driving-based three-degree-of-freedom spherical motor
  • Electromagnetic-piezoelectric-mixed-driving-based three-degree-of-freedom spherical motor

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] see figure 1As shown, a three-degree-of-freedom ball motor based on electromagnetic and piezoelectric hybrid drive of the present invention includes a first stator 1, a rotor 2, an output rod 3, a second stator 4, and a rotor protective film 5 , base 6, support cylinder (4 support cylinders), A piezoelectric ceramic driver 7, B piezoelectric ceramic driver 8, C piezoelectric ceramic driver 9, and 24 coils 1C installed on the first stator 1, and 8 magnetic poles 2A installed on the rotor 2;

[0038] The connecting disc 31 of the output rod 3 is installed on the rotor 2, the rotor 2 is coated with a rotor protective film 5, the outer surface of the rotor protective film 5 is the second stator 4, and the outer surface of the second stator 4 is the first stator 1; The second stator 1 is installed on the base 6 through a support cylinder, and the bottom o...

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Abstract

The invention discloses an electromagnetic-piezoelectric-mixed-driving-based three-degree-of-freedom spherical motor, which comprises a first stator, a rotor, an output link, a second stator, a rotor protection film, a base, a piezoelectric ceramic driver A, a piezoelectric ceramic driver B, a piezoelectric ceramic driver C, 24 coils arranged on the first stator 1 and 8 magnetic poles arranged onthe rotor. A land of the output link is arranged on the rotor. The rotor protection film is coated on the outer surface of the rotor. The second stator is arranged outside the rotor protection film. The first rotor is arranged outside the second stator. The second stator is arranged on the base by support columns. The bottom of the first stator is positioned on L-shaped connecting pieces of the base. The spherical motor provided by the invention adopts a structure with the single rotor and the dual stators; and simultaneously, an electromagnetic driving mode and a piezoelectric ceramic driving mode are fused, compensate for the shortcomings of each other and coact to effectively increase the output torque of the spherical motor.

Description

technical field [0001] The present invention relates to a spherical motor, more particularly, refers to a spherical motor driven by a mixture of electromagnetic and piezoelectric ceramics, which can realize continuous rotation with three degrees of freedom in space. Background technique [0002] With the development of modern industrial technology, more and more workplaces require institutions to be able to achieve continuous three-degree-of-freedom rotation in space, such as radars, manipulators, vision systems, and high-precision machine tools. However, conventional motors are single-axis rotation, so three independent single-axis motors must be combined through a connection mechanism to achieve three-degree-of-freedom rotation. However, the multi-degree-of-freedom rotating mechanism formed by combination inevitably has the deformation of the transmission mechanism and the motion dead zone, and the additional connecting mechanism leads to large system inertia and poor dyna...

Claims

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Application Information

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IPC IPC(8): H02K16/04
Inventor 严亮张良
Owner BEIHANG UNIV
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