Miniature bidirectional rotation driver based on shape memory alloy wire

A memory alloy wire, two-way rotation technology, applied in the direction of program control manipulators, manufacturing tools, manipulators, etc., can solve the problems of reducing output force and complicated operation, and achieve the effect of increasing the range of rotation angle, reducing the volume, and widening the range of rotation angle.

Pending Publication Date: 2022-05-24
YANSHAN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main application method of shape memory alloy wire drive in the field of robots is to composite and embed shape memory alloy wire into the robot body. very cumbersome to operate
In addition, in order to ensure miniaturization and provide a larger working range at the same time, most shape memory alloy drivers use shape memory alloy springs, which greatly reduce the output force

Method used

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  • Miniature bidirectional rotation driver based on shape memory alloy wire
  • Miniature bidirectional rotation driver based on shape memory alloy wire
  • Miniature bidirectional rotation driver based on shape memory alloy wire

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Embodiment Construction

[0021] In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

[0022] It should be noted that in the description of the present invention, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not mean that a device or element must have a specific orientation, be c...

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Abstract

The invention relates to a microminiature bidirectional rotation driver based on a shape memory alloy wire. The microminiature bidirectional rotation driver comprises an upper side shell, a lower side shell, an input gear shaft, an output gear shaft, a first fixing terminal, a first double-end stud, a second fixing terminal, a second double-end stud and the shape memory alloy wire. The spiral groove is formed in the shell, the shape memory alloy wire is arranged in the spiral groove, the length of the shape memory alloy wire is increased in a limited space, then a large rotation angle range can be achieved, the shape memory alloy wire is used for driving a large gear to rotate, and the large gear drives the other small gear to rotate. And the rotation angle range of the driver is further increased. The upper shape memory alloy wire and the lower shape memory alloy wire can rotate bidirectionally. The device has the advantages that the shape memory alloy wire drive is integrated into a small joint rotation driver, the shape memory alloy wire is combined with a traditional gear mechanism, and the output displacement of the driver is increased by utilizing the gear mechanism.

Description

technical field [0001] The invention relates to the technical field of piezoelectric drives, in particular to a micro-miniature bidirectional rotary driver based on shape memory alloy wires. Background technique [0002] With the vigorous development of shape memory alloy drive technology, shape memory alloy wire has been widely used in the drive of intelligent micro-miniature robots. At present, the main application method of shape memory alloy wire drive in the field of robots is to embed the shape memory alloy wire into the robot body. Although this arrangement is beneficial to reduce the volume and weight, when some parameters of the robot change or the driver needs to be replaced operation is very cumbersome. In addition, most shape memory alloy actuators use shape memory alloy springs to greatly reduce the output force in order to ensure miniaturization and provide a larger working range. Therefore, it is necessary to develop a shape memory alloy wire driver with uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/10B25J17/00
CPCB25J17/00B25J9/1085B25J9/102
Inventor 许立忠刘冬
Owner YANSHAN UNIV
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