An artificial hand flexible transmission control mechanism
A technology of flexible transmission and manipulation mechanism, applied in the direction of transmission, gear transmission, manipulator, etc., can solve the problems of poor reliability of prosthetic hand transmission, long reaction time, slow action, etc., to improve response sensitivity and response efficiency, improve efficiency, The effect of reducing vibration and shock
Active Publication Date: 2017-02-01
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0003] In order to avoid the shortcomings of the existing technology and overcome the problems of poor transmission reliability, long reaction time and slow movement of the artificial hand, the present invention proposes a flexible transmission and control mechanism for the artificial hand
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Embodiment Construction
[0023] This embodiment is a flexible transmission and manipulation mechanism for an artificial hand.
[0024] refer to Figure 1 to Figure 11 , The artificial hand flexible transmission control mechanism is composed of a planetary gear mechanism, a switching mechanism, an artificial hand, and a hand clip. The myoelectric control signal generated by the brain is transmitted to the control circuit of the motor. After the control circuit outputs the control signal to the motor, the motor starts to work, and the speed is output to the planetary gear mechanism through the output shaft. The planetary gear mechanism includes a double planetary gear 40, a small transmission ratio planetary gear mechanism 39, a first output shaft 37, an input shaft 38, a second sun gear 21, a planetary gear 19, a first sun gear 13, a first internal gear 9, Planet carrier 12, motor 15, first double gear 10, second double gear 11, high-speed sleeve 7, low-speed sleeve 8; motor 15 is connected with the f...
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The invention discloses a novel artificial hand flexible transmission control mechanism which comprises a planetary gear mechanism, a switching mechanism, an artificial hand and a hand clamp. A planetary gear of the planetary gear mechanism is a duplicate planetary gear, a sun gear is directly matched with an input shaft to serve as an input end, an inner gear is fixed onto a shell of the artificial hand, and a planetary frame serving as an output end is fixedly connected with a sleeve. An outer ring of the switching mechanism is directly fixedly connected with the sleeve through a screw to serve as an input end, a roller is matched with an output shaft to serve as an output end, a shifting fork is connected onto the switching mechanism through a guide post, a guide column slides along a sliding groove under the combined action of an arc push rod and a spring, the artificial hand is driven to flexibly open and close, and reliable, flexible and continuous switching is realized. The artificial hand flexible transmission control mechanism is driven by the duplicate planetary gear, the size is maximally reduced on the premise of meeting the requirement of transmission ratio, meshing overlap ratio is increased, efficiency is improved, and noise is reduced.
Description
technical field [0001] The invention relates to a transmission mechanism of an artificial hand, in particular to a flexible transmission and manipulation mechanism of an artificial hand. Background technique [0002] At present, scholars at home and abroad have done a lot of research on myoelectrically controlled prosthetic hands, and have achieved certain results. The typical representative is the German OttoBack company. The SUVA myoelectric prosthetic hand developed by it is a single-degree-of-freedom three-finger prosthetic hand sll, and its control system includes two Road EMG signal processing part, excitation system and position control system; KnezoAkazwaa et al. of Kobe University in Japan developed a new type of myoelectric control bionic Kobe hand, which can imitate the dynamic characteristics of the neuromuscular control system of the human hand, so that the myoelectric hand can move through the fingers Position control system, force feedback, and variable gain i...
Claims
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IPC IPC(8): F16H1/28B25J9/00
CPCB25J9/102B25J9/12F16H1/28
Inventor 邵忍平李晶邵博丽汪亚运齐先坤
Owner NORTHWESTERN POLYTECHNICAL UNIV