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Breakdown torque coupler

A technology of limit torque and coupling, applied in the direction of clutches, fluid clutches, mechanical equipment, etc., can solve problems such as complex structures, and achieve the effects of strong versatility, simple structure, and adjustable and controllable working torque

Inactive Publication Date: 2010-05-05
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] U.S. Patent 7364025: Magnetorheological Fan Coupling discloses a magnetorheological fluid fan coupler specially used in engine cooling systems. The coupler controls its magnetic field strength, shear stress and engine temperature through a closed-loop control system, but its The structure is extremely complex, with nearly a hundred main components, and it is not suitable for other fields

Method used

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  • Breakdown torque coupler
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Embodiment Construction

[0014] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings, which is not a limitation on the scope of protection:

[0015] A limit torque coupling, the specific structure is as figure 1 As shown, the driving rotor shaft 3 is installed in the driving end bearing seat 2 through the driving end bearing 19, the driven rotor drum 8 is wound with an excitation coil 7, and the driven rotor drum 8 is placed in the cavity of the driving rotor drum 4. Inside, the gap between the driving rotor drum 4 and the driven rotor drum 8 is 0.4 ~ 2.5mm, the gap is filled with magnetorheological fluid 5, and the sealing cover 9 is fixedly connected to the driving rotor drum through the driven rotor shaft 10 4 on.

[0016] The driven rotor shaft 10 is installed in the driven end bearing seat 14 through the driven end bearing 15. The right end of the driven rotor shaft 10 is equipped with a flange 13 and the hub of the flange 13 ...

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Abstract

The invention relates to a breakdown torque coupler which comprises the technical scheme that a driving rotor shaft (3) is arranged inside a driving end bearing seat (2) by a driving end bearing (19); a driven rotor rotating cylinder (8) is wound with a magnet exciting coil (7), and is arranged inside a cavity of a driving rotor rotating cylinder (4); the gap between the driving rotor rotating cylinder (4) and the driven rotor rotating cylinder (8) is 0.4-2.5mm and is internally and fully filled with magnetorheological fluid (5); a sealing cover (9) passes through a driven rotor shaft (10) and is fixedly connected on the driving rotor rotating cylinder (4); the driven rotor shaft (10) is installed inside a driven end bearing seat (14) by a driven end bearing (15); the right end of the driven rotor shaft (10) is provided with a flange disc (13), a hub of which is provided with a collector ring (12); and the magnet exciting coil (7) is connected with the collector ring (12) by a lead passing through ostioles of the driven rotor rotating cylinder (8) and the driven rotor shaft (10). The breakdown torque coupler has the characteristics of strong universality, simple structure, adjustable and controllable operating torque and overload protection function.

Description

Technical field [0001] The invention belongs to the technical field of couplings in mechanical transmission devices. Specifically, it relates to a limit torque coupling. Background technique [0002] Traditional couplings generally transmit torque through rigid materials or hydrodynamic pressure, and the torque they can transmit is generally constant and uncontrollable; moreover, the former has poor shock resistance and vibration absorption and has no overload protection, although the latter It overcomes the above shortcomings of the former, but its oil supply system is complicated, pressure supply pressure is high, and maintenance is difficult. [0003] In recent years, in-depth research on magnetorheological fluids at home and abroad has greatly promoted the development and application of various magnetorheological fluid transmission devices, but it mainly involves two aspects of dampers and brakes, and does not specifically target the field of couplings. Conduct relevant devel...

Claims

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Application Information

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IPC IPC(8): F16D35/00F16D37/02
Inventor 李友荣宋钢兵吕勇鲁光涛李名杰
Owner WUHAN UNIV OF SCI & TECH