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High-precision linear driver with arbitrary distance of run

A technology of linear drive and arbitrary stroke, which is applied in the muscle field of humanoid robots, can solve the problems of small output torque, small output force, and limited stroke, and achieve the effect of increasing output force, large output force, and reliable clamping action

Inactive Publication Date: 2010-05-12
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

But as far as the current linear ultrasonic driver is concerned, its output force is often relatively small.
For the peristaltic bionic driver, as far as the piezoelectric driver has been developed, the output torque is relatively small, and the speed is low and the stroke is limited. It is these shortcomings that limit the application of this driver.

Method used

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  • High-precision linear driver with arbitrary distance of run
  • High-precision linear driver with arbitrary distance of run
  • High-precision linear driver with arbitrary distance of run

Examples

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Embodiment Construction

[0028] Such as figure 1 As shown in (a), it is mainly composed of a spring preloaded driver: a single-strand or multi-strand steel cable 1, the steel cable can be a fully enclosed ring or a line segment of a certain length; a guide support 2, a tubular guide part 3 ; The clamping mechanism includes a longitudinal telescopic clamping unit 6 and a longitudinal telescopic clamping unit 7; the axial telescopic mechanism includes a horizontal telescopic unit 4 and a horizontal telescopic unit 5. The clamping mechanism is fixedly connected with one end of the telescopic unit, and the other end of the telescopic unit is fixedly connected with the fixed part of the guide support 2 . The piezoelectric ceramic stack 15 in the clamping units 6 and 7 is prestressed by the spring 8, so that the piezoelectric ceramic stack 15 always works in a compressed state. 9 is the casing. 10 is the guide wheel of carrying steel cable, can install one or more guide wheels in the space, be installed i...

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Abstract

The provided arbitrary-travel high-precise direct driver comprises: based on bionic motion principle, applying piezoelectric ceramic as basic motion executive element, high-tension high-toughness mono-strand or multi-strand ring rope as output element, lateral / vertical shrinking unit as drive element. Wherein, the control precision can achieve up to 50nm, output force up to 50-100N or more. This invention has wide application, special to anthropomorphic robotic.

Description

technical field [0001] The invention belongs to the technical field of micro-electro-mechanical devices, and provides a micron-level, high-speed, high-output, bidirectional linear driver (motor) with any stroke. The invention can be widely used in various occasions of high-precision positioning and arbitrary travel, such as robots, biological instruments, optical instruments, and precision machining, and is especially suitable for use as muscles of humanoid robots. Background technique [0002] With the development of modern industry and scientific research, the requirements for the precision of drive and control of electromechanical systems and the miniaturization of structures are getting higher and higher. As the key technology of precision or MEMS, the miniature, large-stroke, and precise micro-step drive is the key to the system, and its characteristics and functions are directly related to the characteristics and functions of the MEMS. Therefore, the research on new p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/02H02N2/04
Inventor 关胜晓汪增福张江涛
Owner UNIV OF SCI & TECH OF CHINA
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