Magnetostrictive Inertial Impact Rotary Drive
A rotary drive, magnetostrictive technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of small output force, small deformation, low rotation speed And load capacity is not ideal enough to achieve strong load capacity, fast rotation speed, improve the effect of motion accuracy and stability
Inactive Publication Date: 2016-02-03
NANCHANG INST OF TECH
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Problems solved by technology
At present, the piezoelectric bimorph is mainly used as the driving source to construct the inertial impact rotary drive. The piezoelectric material has the advantages of fast response and high deformation accuracy, but also has the disadvantages of small deformation and small output force. Not ideal in terms of rotational speed and load capacity
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[0013] A magnetostrictive inertial impact rotary driver, including a base 1, a rotating shaft 2, a coil 6, a cantilever beam 5, and a Terfenol-D sheet 4, the rotating shaft 2 is arranged in the shaft hole of the base 1, and its characteristic is that the cantilever beam 5 are symmetrically installed on the rotating shaft 2, there can be two or more, the shape of the cantilever beam 5 is a rectangular sheet, the coil 6 installed on the rotating shaft 2 is set on the cantilever beam 5, the coil 6 is not connected with the cantilever beam 5 Contact; Terfenol-D thin slices 4 are bonded to the same side of the cantilever beam 5 arranged symmetrically in the circumferential direction, and several pieces of Terfenol-D thin slices 4 are bonded on each cantilever beam 5, and the maximum magnetism of Terfenol-D thin slices 4 The expansion and contraction direction is consistent, and is consistent with the length direction of the cantilever beam 5. The free end of each cantilever beam 5 i...
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A magnetostrictive inertial impact rotary driver, including a base, a rotating shaft, a coil, a cantilever beam, and a Terfenol-D sheet, the rotating shaft is set in the shaft hole of the base, and the coil installed on the rotating shaft is sleeved on the cantilever beam, Not in contact with the cantilever beam; Terfenol-D flakes are bonded to the same side of the symmetrically arranged cantilever beams in the circumferential direction, and Terfenol-D flakes are bonded to each cantilever beam, and the maximum magnetostrictive direction of the Terfenol-D flakes is the same , and is consistent with the length direction of the cantilever beam, and a counterweight is installed at the free end of each cantilever beam. In the magnetostrictive inertial impact rotary driver of the present invention, since the cantilever beam and the Terfenol-D sheet are not in contact with the coil, the cantilever beam and the Terfenol-D sheet do not need to drag the power supply cable during the inertial impact process, thereby improving the performance of the driver. Compared with the existing piezoelectric inertial impact rotary driver, it has faster rotation speed and stronger load capacity.
Description
technical field [0001] The invention relates to a magnetostrictive inertial impact rotary driver. Background technique [0002] Inertial impact rotary drive refers to a drive mechanism that uses the inertial impact force generated by the rapid deformation of the drive source to achieve precise rotation under the action of a sawtooth wave drive signal. It has many advantages such as small size, low driving voltage, simple structure, and low cost, and has shown broad application prospects in the fields of aviation, robotics, and micromachining. At present, the piezoelectric bimorph is mainly used as the driving source to construct the inertial impact rotary drive. The piezoelectric material has the advantages of fast response and high deformation accuracy, but also has the disadvantages of small deformation and small output force. It is not ideal in terms of rotation speed and load capacity. [0003] Rare earth giant magnetostrictive material is a new type of magnetomechanic...
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IPC IPC(8): H02N2/10H02N2/14
Inventor 卢全国曾彬曹清华祝志芳唐刚雍康俊石亮刘德辉徐斌
Owner NANCHANG INST OF TECH