Driving device based on magnetic control shaped memory alloy
A technology of memory alloy and driving device, which is applied in the direction of machines/engines, mechanisms for generating mechanical power, mechanical equipment, etc. It can solve the problems of small displacement, small output force, and self-frequency limitation, etc., and achieve the effect of compact structure
Inactive Publication Date: 2014-04-02
WUHAN UNIV OF SCI & TECH
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Problems solved by technology
Due to the influence of its own structure, this kind of driving device has relatively small output force and small displacement, and its own frequency is also limited. It can only be used in occasions where the required driving force and displacement are small and the frequency is not high. Meet the current market demand for high-power, high-response drive devices
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Embodiment 1
[0016] A drive device based on a magnetically controlled shape memory alloy. Its structure is as figure 1 As shown: the left end of the driven body 6 is coaxially connected with the right end of the first magnetically controlled shape memory alloy 5, and the left end of the first magnetically controlled shape memory alloy 5 is slidably installed in the central through hole at the right end of the left iron core 1. The inner side of the right end of the iron core 1 is fixed with a left bracket 3 , and the left zero adjustment screw 4 is in contact with the left end surface of the first magnetically controlled shape memory alloy 5 through the left bracket 3 .
[0017] The right end of the driven body 6 is connected with the left end of the second magnetically controlled shape memory alloy 7 coaxially, and the right end of the second magnetically controlled shape memory alloy 7 is slidably installed in the central through hole at the left end of the right iron core 10, and the ri...
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The invention relates to a driving device based on a magnetic control shaped memory alloy. The technical scheme is that: a passive driving body (6) is concentrically equipped with first and second magnetic control shaped memory alloys (5, 7); the right end of the first magnetic control shaped memory alloy (5) is connected to the left end of the passive driving body (6), the left end of the second magnetic control shaped memory alloy (7) is connected to the right end of the passive driving body (6); the first and second magnetic control shaped memory alloys (5, 7) are applied with a pre-added magnetic field through left and right direct current windings (14, 12); the size of the magnetic field in the first and second magnetic control shaped memory alloys (5, 7) is changed through an exciting winding (2); by using left and right zero-setting screws (4, 9), the middle position of the passive driving body (6) is aligned. The driving device based on the magnetic control shaped memory alloy has the characteristics of compact structure, high frequency response, high precision, and big output force; furthermore, the driving device can be well used as the driver of a servo valve, a high-frequency switch, and devices with the similar requirement.
Description
technical field [0001] The invention belongs to the technical field of application of magnetically controlled shape memory alloys. In particular, it relates to a driving device based on a magnetically controlled shape memory alloy. Background technique [0002] At present, most of the driving devices are manufactured based on the principle of electromagnetic induction. The induced magnetic field is generated by energizing the coil, which interacts with the existing magnetic field to generate a certain amount of driving force. Changing the magnitude of the current in the coil can realize the change of the output force, and changing the direction of the current in the coil can realize the change of the direction of the output force, so that the drive device can output a certain frequency of output force or torque, such as the commonly used moving coil type Torque motors, moving iron torque motors and proportional solenoids. Due to the influence of its own structure, this kin...
Claims
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IPC IPC(8): F03G7/06
Inventor 涂福泉陈奎生赵振飞曾良才傅连东许仁波陈新元张安裕张小波毛阳胡良智刘春雨牛晓阳刘小双曾庆兵李贺
Owner WUHAN UNIV OF SCI & TECH