A mechanical prosthetic arm
An arm and prosthetic technology, applied in the field of medical mechanical prosthetic arms, can solve the problems of low degree of freedom and insufficient grasping strength, and achieve the effects of light weight, large grasping strength, and high cost performance
Active Publication Date: 2021-07-02
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology
[0005] Aiming at the disadvantages of low degree of freedom, reliability, and insufficient grasping strength of the current mechanical prosthetic arm, the present invention provides a mechanical prosthetic arm capable of producing multi-degree-of-freedom movements with high grasping force, reliable structure, and overall flexibility
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[0022] The present invention provides a mechanical prosthetic arm. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings.
[0023] A mechanical prosthetic arm is composed of six parts: hand 1, wrist 2, forearm 3, elbow joint 4, upper arm 5, and shoulder joint 6. The position of each component is as follows: figure 1 shown.
[0024] Such as figure 2 As shown, the hand part is divided into two parts, the palm and the fingers. There are two motor slots on the back of the palm to respectively place the first Maxon motor 11 and the second Maxon motor 15, and a motor slot is provided on the front of the palm for placing the third Maxon motor 17. , the first Maxon motor 11 is the driving motor of the middle finger, ring finger and little finger, the middle finger, ring finger and little finger are connected by the three-fing...
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The invention relates to a mechanical prosthetic arm, which is composed of a hand, a wrist, a forearm, an elbow joint, an upper arm and a shoulder joint. The hand is composed of a palm part and a finger part. The forearm driving mechanism is connected to the forearm, one end of the elbow joint is connected to the forearm, and the other end is connected to the upper arm. The upper arm is installed on the body through the shoulder joint. The mechanical prosthetic arm is equipped with a finger driving mechanism, a wrist driving mechanism, a forearm driving mechanism, and an elbow joint driving mechanism And upper arm drive mechanism, real arm multi-degree-of-freedom movement, purely mechanical structure, reliable structure; fingers adopt link mechanism structure, reliable structure, strong grip, the whole arm is designed with multiple degrees of freedom, can achieve flexible and fast response effect as a whole.
Description
technical field [0001] The invention relates to a mechanical prosthetic arm, in particular to a medical mechanical prosthetic arm. Background technique [0002] In recent years, the number of patients with limb disabilities caused by natural disasters, wars, diseases, and man-made violence has increased year by year. Among them, the lives of patients with upper limb disabilities are the most difficult, and it is difficult for them to take care of themselves after losing their upper limbs. Therefore, it is particularly urgent to solve the self-care problems of these people. [0003] A single human arm is analyzed mechanically and can be represented by a linkage mechanism with about 27 degrees of freedom. But about 20 of these degrees of freedom are concentrated in the hand. The design of the prosthetic hand is particularly important. The mechanism design of the manipulator is also called mechanism synthesis, which mainly includes type synthesis and size synthesis. In the...
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IPC IPC(8): A61F2/54
CPCA61F2/54
Inventor 田和强林喆徐倩李建永郑晨玲王坤黎张弘斌周海萍
Owner SHANDONG UNIV OF SCI & TECH