An upper extremity exoskeleton mechanical assist device

Abstract

The invention discloses an upper limb external skeleton mechanical power assisting device, and relates to the field of robots of a bionic structure. A lower end of a right limb big arm is fixedly connected with a right limb small arm through a long bolt, a synchronous small toothed wheel is arranged at one end of the long bolt in a sleeving mode, the long bolt is fixed to a first spacer through a first nut, a ratchet wheel is arranged at the left end of a linkage shaft, a ratchet wheel base is arranged below the ratchet wheel, the bottom of the left end of the linkage shaft is fixedly connected with a left big arm through a connecting sheet, a telescopic pipe is arranged at the lower end of a triangular shelf, and is fixed to a second spacer through a bolt and a second nut, a spring is arranged at the joint of the upper end of the telescopic pipe and the triangular shelf, a bearing is arranged at the lower end of the telescopic pipe in a sleeving mode, the bearing is provided with a bearing cover, and the lower end of the bearing cover is welded to a base. The upper limb external skeleton mechanical power assisting device can guarantee safe carrying of commodities, can greatly alleviate the labor intensity of the arms in a carrying process, and has the advantages of being low in cost, convenient to operate, practical in function and the like, and has high market popularization value.

Description

Technical field: [0001] The invention relates to an upper limb exoskeleton mechanical booster, which belongs to the technical field of robots with a bionic structure. Background technique: [0002] Exoskeleton technology is a wearable robot technology, a new type of mechatronics device developed by imitating the exoskeleton in the biological world. It can be worn on the outside of the operator's body to provide the operator with protection, body support, and exercise assistance. And other functions. [0003] Most of the driving of the exoskeleton is done by motor or hydraulic way, only a few are driven by pneumatic way, and it is mainly seen in light-load applications such as medical rehabilitation. The disadvantage of the motor drive is that the power / mass is relatively small, and the motor with limited weight can hardly bear the larger load. The disadvantages of hydraulic drive are mainly leakage problems, low system efficiency and high system cost. Pneumatic drive mode, altho...

AI Technical Summary

Problems solved by technology

The disadvantage of motor drive is that the power / mass ratio is small, and the motor with limited weight is difficult to bear a large load

The disadvantages of hydraulic drive are mainly leakage problems, low system efficiency and high system cost

Although the pneumatic drive method has the advantages of being friendly to the environment and the human body, light components, and cheap prices, the power / volume-to-mass ratio of conventional air cylinder actuators is far inferior to that of hydraulic cylinders, so it cannot meet the needs of large customers. The need for exoskeleton booster systems with load requirements but limited installation space and high requirements for portability has not been widely used

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