Rotary driver and method for joint drive of shape memory alloy and electromagnetic
A technology of rotary drive and memory alloy, which is applied in the direction of mechanical power generating mechanisms, machines/engines, mechanical equipment, etc., can solve the problem of fewer rotary drives, achieve the effect of reducing capacity loss, reducing weight, and broad application prospects
Active Publication Date: 2020-01-10
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology
Shape memory alloys are mainly used as driving materials in micro-robots, micro-linear actuators and drives. At present, there are relatively few rotary drives designed based on memory alloy drives.
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] see Figure 1-9 , the present invention provides a technical solution: a rotary driver driven by a combination of shape memory alloy and electromagnetic, which includes a base 11, a support plate 12, a shape memory alloy spring 6, a recovery spring 13, a threaded rod 14, a movable shaft 5, and a magnet Seat 4, electromagnet 15, rotor 3 and housing 16, the support plate 12 is fixed above the base 11 through the protruding structures at the left and right...
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The invention discloses a shape memory alloy and electromagnet combined drive rotary driver. A moving shaft, a magnet seat and electromagnets generate rotary motion along a certain angle along with stretching deformation of shape memory alloy springs, wherein the magnet seat and the electromagnets are arranged on the upper portion of the moving shaft. When the electromagnets are powered on, a rotor rotates by a certain angle along with the moving shaft under the action of electromagnetic force. When the voltage of the shape memory alloy springs is reduced, the electromagnets are powered off, the moving shaft restores to the original state, and the rotor keeps a certain angle and does not change. During work, the two shape memory alloy springs synchronously generate stretching or shorteningdeformation and act on the moving shaft in the same direction, meanwhile, the two shape memory alloy springs are applied so that the moving shaft can have large torque, restoring springs provide elastic force for restoring the initial state, and threaded rods adjust the initial pre-tightening force of the shape memory alloy springs and the restoring springs. According to the rotary driver, the electromagnetic clamping technology and shape memory alloy drive are combined, the noncontact rotary driver has the large output torque, energy losses are reduced, and wider application prospects are achieved.
Description
technical field [0001] The invention relates to a rotary drive combined with shape memory alloy and electromagnetic drive, belonging to the technical field of rotary drives. Background technique [0002] Precision drive technology has played an important role in the fields of micro-robots, aerospace, medical equipment, and precision positioning, among which rotary drive is a widely used precision drive device. As a kind of intelligent material, shape memory alloy has attracted attention and application because of its advantages of small size, large deformation and low driving voltage. As a driving material, shape memory alloys are mainly used in micro-robots, micro linear actuators and drives. At present, there are relatively few rotary drives designed based on memory alloy drives. [0003] In view of the above problems, the present invention provides a rotary drive combined with shape memory alloy drive and electromagnetic non-contact clamping, so that the drive has the ad...
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IPC IPC(8): F03G7/06
CPCF03G7/065
Inventor 李冲方记文赵忠
Owner JIANGSU UNIV OF SCI & TECH