Large-displacement magnetic actuator utilizing electromagnetic force to carry out position control
An actuator, large displacement technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems of inconvenient power supply voltage, uneconomical and practical, low efficiency and so on
Inactive Publication Date: 2014-07-02
XI AN JIAOTONG UNIV
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Problems solved by technology
However, the existing piezoelectric actuators have the following problems: First, the piezoelectric actuator generally consists of a piezoelectric stack, a mechanical structure, a spring and an output mechanism to form an actuating system to complete the work together. The joint action of the output mechanism requires sufficient rigidity and high machining accuracy; second, piezoelectric locking is generally used to achieve large displacements, but the locking also requires continuous power supply to the piezoelectric, and the power supply voltage is generally high, which is very uneconomical Practical; Third, in the process of experiment and work, it is inconvenient and inefficient to ensure a higher piezoelectric power supply voltage
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[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0016] like figure 1 , figure 2 As shown, a large-displacement magnetic actuator using electromagnetic force for position control in the present invention includes a cylindrical actuator housing 13, and the inside of the cylindrical actuator housing 13 is sequentially: the first end cover 1 and the outer hollow The columnar magnetizer 2 is connected by thread, and one end of the outer hollow columnar magnetizer 2 is magnetically connected with the columnar permanent magnet 3 placed inside it, and the other end of the columnar permanent magnet 3 is connected with the inner columnar magnetizer placed in the outer hollow columnar magnetizer 2 4 Connected by magnetic force, a hollow columnar coil 5 is set in the gap between the outer hollow columnar magnetizer 2 and the inner columnar magnetizer 4, the hollow columnar coil 5 and the thi...
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The invention discloses a large-displacement magnetic actuator utilizing electromagnetic force to carry out position control. An external hollow cylindrical magnetizer is magnetically connected with a cylindrical permanent magnet which is arranged inside the external hollow cylindrical magnetizer; the cylindrical permanent magnet is magnetically connected with an internal cylindrical magnetizer; a hollow cylindrical coil is sleeved in a gap between the external hollow cylindrical magnetizer and the internal cylindrical magnetizer; the hollow cylindrical coil is connected with a thin cylindrical substrate; the external hollow cylindrical magnetizer is connected with the thin cylindrical substrate by a leaf spring; the thin cylindrical substrate is connected with a cylindrical electromagnet; the cylindrical electromagnet is connected with the thin cylindrical substrate and an cylindrical output rod integral mechanism; the cylindrical electromagnet is switched on or switched off, so that an armature is unlocked or locked under the action of the spring to output large displacement; and quantitative current in a direction is applied to the hollow cylindrical coil, so that the thin cylindrical substrate, the cylindrical electromagnet, the spring, the armature, the substrate and an output rod integral mechanism are pushed or pulled by the ampere force to move, thereby outputting positive or negative large displacement and pushing force or pulling force.
Description
technical field [0001] The invention relates to a large-displacement magnetic actuator, in particular to a large-displacement magnetic actuator which utilizes electromagnetic force for position control. Background technique [0002] As a power device with output displacement and force, actuator is widely used in scientific research and industrial fields. Its potential economic effect is very significant, and the design and development of actuator has been highly valued. However, the existing piezoelectric actuators have the following problems: First, the piezoelectric actuator generally consists of a piezoelectric stack, a mechanical structure, a spring and an output mechanism to form an actuating system to complete the work together. The joint action of the output mechanism requires sufficient rigidity and high machining accuracy; second, piezoelectric locking is generally used to achieve large displacements, but the locking also requires continuous power supply to the piez...
Claims
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IPC IPC(8): H02K41/02
Inventor 安增勇徐明龙敬子建张舒文杨克亚何少泽冯勃
Owner XI AN JIAOTONG UNIV