Shoulder joint working method based on bionic structure

Abstract

The invention relates to a shoulder joint working method based on a bionic structure, and belongs to the technical field of bionic machinery. A bending device and a stretching device are included; thebending device comprises two symmetrically-arranged T-shaped plates, an upper gear set and a first motor, the upper gear set includes at least two gears which are sequentially meshed, the first motordrives the upper gear set to rotate, and the stretching device is driven to rotate; the stretching device includes a U-shaped connecting plate, and the U-shaped connecting plate is internally provided with a connecting block, a second motor and a lower gear set, the lower gear set includes two meshed gears, and the connecting block includes four sides, wherein two opposite sides are connected tothe gears at the tail end of the upper gear set through rotating shafts, and the other two opposite sides are connected to the gears at the top end of the lower gear set through rotating shafts; the second motor drives the lower gear set to rotate, the U-shaped connecting plate is driven to rotate, bending and stretching motion of the human joint are simulated, three-freedom-degree movement of a joint of a mechanical arm is achieved, the volume of the joint of the mechanical arm is reduced, and the practicability is high.

Description

technical field [0001] The invention relates to a working method for a shoulder joint of an artificial limb, and belongs to the technical field of bionic machinery. Background technique [0002] Every year, due to natural disasters, war injuries, congenital and other reasons in the world, people will be physically disabled, and physical disabilities will bring inconvenience to the lives of the disabled. To provide good services for the disabled is a noble act of good deeds. cause. [0003] At present, in the field of robotic arms, robotic arms are generally large in size, heavy in weight, light in structure, flexible in use, and large in working space, which seriously affects the use of disabled people. [0004] The Chinese patent document with the publication number CN104908060A proposes a five-degree-of-freedom parallel bionic shoulder joint, which realizes the movement of the shoulder joint in a three-dimensional plane. However, the mechanism is too complicated, and the ...

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Problems solved by technology

[0003] At present, in the field of robotic arms, robotic arms are generally large in size, heavy in weight, light in structure, flexible in use, and large in working space, which seriously affects the use of disabled people.

[0004] The Chinese patent document with the publication number CN104908060A proposes a five-degree-of-freedom parallel bionic shoulder joint, which realizes the movement of the shoulder joint in a three-dimensional plane. However, the mechanism is too complicated, and the volume is inevitably too large. The difference is so far that it cannot be used on artificial limbs; the Chinese patent document with the publication number CN101301755A proposes a 3-DOF spherical parallel bionic shoulder joint with offset output. Although this technology is small in size, the parallel mechanism is complicated to control. If you use On prosthetics, it is not easy for the disabled to achieve precise control

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