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Double-shear magneto-rheological clutch under permanent magnet excitation

A magneto-rheological and double-shearing technology, which is applied to fluid clutches, clutches, mechanical equipment, etc., can solve the problems of increasing the size of the oil seal, reducing the utilization rate of the magnetic field, and failing to realize automatic fail-safe, etc., to increase the maximum torque and simple structure Effect

Active Publication Date: 2022-03-18
SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coupling is able to achieve zero energy consumption, but unfortunately the transmitted torque is not adjustable, and it is not fail-safe
In addition, the document "Bucchi F, Forte P, FranceschiniA, et al.Analysis of differently sized prototypes of an MRclutchbyperformance indices[J].Smart Materials and Structures, 2013, 22(10):105009." announced a single-sided shear permanent Magnetically actuated clutch, which separates the outer casing, greatly increases the size of the oil seal, and then generates excessive heat in the slip state, which is not conducive to the stable operation of the device; secondly, the clutch is in a single-sided shear state, making the The torque is greatly weakened; the most important thing is that the working parts are traditionally composed of a single material, which also reduces the utilization of the magnetic field

Method used

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  • Double-shear magneto-rheological clutch under permanent magnet excitation
  • Double-shear magneto-rheological clutch under permanent magnet excitation
  • Double-shear magneto-rheological clutch under permanent magnet excitation

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The purpose of the present invention is to provide a double-shear magneto-rheological clutch under permanent magnet excitation to solve the problems in the above-mentioned prior art. Magneto-rheological glue is used as the force transmission medium, and permanent magnets are used as the excitation source to achieve torque. The control has automatic fail-safe function, and has no magnetic field excitation energy consumption, and has the characteristics of...

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Abstract

The invention discloses a double-shear magneto-rheological clutch under permanent magnet excitation. The double-shear magneto-rheological clutch comprises an output shaft, an outer shell, an input rotary drum shell, an input rotary drum core, magneto-rheological glue, an end cover, an input shaft, an inner shell shaft, an input rotary disc, a permanent magnet, a permanent magnet end cover and an inner shell. The inner shell is mounted in a cavity formed by the output shaft end cover, the sleeve, the outer shell and the end cover; a whole formed by connecting the permanent magnet, the permanent magnet sleeve and the permanent magnet end cover is mounted in the inner shell; one end of the spring is connected with the permanent magnet sleeve, and the other end is connected with the output shaft end cover; the input rotating drum shell is fixedly connected with the input rotating disc, and the input shaft is fixedly connected with the input rotating disc. The inner shell shaft is fixedly connected with the inner shell; the input rotary drum core is embedded into the input rotary drum shell, and the input shaft and the end cover are connected through a bearing to form a rotating pair. The magneto-rheological gel is adopted as a force transmission medium, the permanent magnet is adopted as an excitation source, the torque is controllable, the automatic fault prevention function is achieved, magnetic field excitation energy consumption is avoided, and the structure is simple.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission equipment, in particular to a double-shear magnetorheological clutch under permanent magnet excitation. Background technique [0002] Traditional couplings are divided into rigid couplings and flexible couplings with adjustable axial, radial and angular errors. The former is widely used in mechanical transmission devices due to its advantages of simple structure, low cost, and large torque transmission. The latter uses some viscoelastic elements, which have a certain ability to absorb and dampen vibrations, and can be used in some occasions with high requirements for working environments. These two couplings do not have the function of overload protection during work. [0003] With the development of the machinery industry, the requirements for the components of the mechanical system are getting higher and higher, including the mechanical properties, precision, multi-functionalit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D37/02
CPCF16D37/02
Inventor 孙民周洲李向东陈序竺启斌刘兵邓冉
Owner SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
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