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Magnetorheological brake device and magnetorheological brake system based on wearable exoskeleton

A braking system and magnetorheological technology, which is applied in the field of magnetorheological, can solve the problem of insufficient buffer braking effect of the braking mechanism, and achieve the effects of compact structure, cost reduction and system accuracy improvement.

Active Publication Date: 2019-11-15
NORTHEASTERN UNIV
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a magneto-rheological braking system based on a wearable exoskeleton, which aims to solve the problem that the buffering and braking effect of the existing braking mechanism is not outstanding

Method used

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  • Magnetorheological brake device and magnetorheological brake system based on wearable exoskeleton

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Embodiment Construction

[0034] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" ma...

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Abstract

The invention relates to the technical field of magnetorheology, in particular to a magnetorheological brake system based on wearable exoskeleton. The magnetorheological brake system comprises a magnetorheological brake, a harmonic reducer and a motor, wherein the magnetorheological brake comprises a shell, a transmission shaft arranged in the shell through paired bearings, a brake disc fixed on the transmission shaft and an electromagnetic coil arranged in the shell; a closed cavity is formed between the shell and the transmission shaft; the closed cavity can be filled with magnetorheologicalfluid; the harmonic reducer comprises a rigid wheel fixed on the shell, a wave generator fixed on the first end of the transmission shaft and a flexible wheel arranged between the rigid wheel and thewave generator; and the flexible wheel can be connected with the wearable exoskeleton. In addition, the invention also provides a magnetorheological brake device. According to the magnetorheologicalbrake system, the braking force is controlled in time by changing the state of the magnetorheological fluid, so that fatigue of exoskeleton wearers is relieved, and comfort is improved.

Description

technical field [0001] The invention relates to the field of magnetorheological technology, in particular to a magnetorheological braking device and a magnetorheological braking system based on a wearable exoskeleton. Background technique [0002] Magneto-rheological fluid is a new type of intelligent material, which is a suspension composed of tiny soft magnetic particles with high magnetic permeability and low hysteresis and non-magnetic liquid. It presents a low-viscosity Newtonian fluid under zero magnetic field conditions. Under the action of a strong magnetic field, it exhibits the characteristics of high viscosity and low fluidity of Bingham (Bingham) body. Magnetorheological fluids have high shear yield strength under strong magnetic fields, and can produce larger shear yield strengths even under weaker magnetic fields. Magneto-rheological fluid has a wide temperature range, can maintain characteristics in a large temperature range, and can maintain non-stratificati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D57/00
CPCF16D57/002
Inventor 宋万里王兆昕李佩繁何春阳王娜
Owner NORTHEASTERN UNIV
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