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Permanent-magnet torque-limiting shaft coupler

A coupling and torque limiting technology, which is applied in the direction of electric brake/clutch, asynchronous induction clutch/brake, electrical components, etc., can solve the problem of high coaxiality between the driving shaft and the driven shaft, stop, restart, Increase the difficulty of production and other issues to achieve the effects of damping dynamic performance, prolonging service life and reducing damage

Inactive Publication Date: 2017-02-22
刁俊起
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the equipment is blocked, the prime mover is damaged due to the load blocking
In addition, the existing permanent magnet coupling needs to be stopped and restarted to run after the input and output are out of sync due to equipment stalling
In addition, the existing rigid coupling has high requirements on the coaxiality of the driving shaft and the driven shaft, which increases the difficulty of production

Method used

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  • Permanent-magnet torque-limiting shaft coupler
  • Permanent-magnet torque-limiting shaft coupler
  • Permanent-magnet torque-limiting shaft coupler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A permanent magnet torque limiting coupling, such as figure 1 , figure 2 As shown, it includes an input shaft 1 and an output shaft 2. One end of the input shaft 1 is connected to the driving rotor 3, and one end of the output shaft 2 is connected to the driven rotor 4. The driven rotor 4 and the driving rotor 3 are hollow cylinders. One end of the rotor 3 is connected to the input shaft 1, and the other end is open; one end of the driven rotor 4 is connected to the output shaft 2, and the other end is open; the driven rotor 4 is inserted into the driving rotor 3 to form a nested rotor and the two rotors Conductors 5 and permanent magnets 6 are distributed circumferentially on the side wall at intervals. The active rotor 3 corresponds to the conductors 5 and permanent magnets 6 on the driven rotor 4 one by one. The magnetic poles of the active rotor 3 and the permanent magnets 6 on the driven rotor 4 are along the circumference Arranged in the same direction, and the ...

Embodiment 2

[0024] A permanent magnet torque limiting coupling, such as image 3 , Figure 4 As shown, the outer circumference of the driven rotor 4 and the inner circumference of the driving rotor 3 are respectively connected to the conductor rotor 7 on the outer circumference and inner circumference of the corresponding nested rotor. All the others are identical to Embodiment 1.

Embodiment 3

[0026] A permanent magnet torque limiting coupling, such as Figure 5 , Figure 6 As shown, it includes an input shaft 1 and an output shaft 2. One end of the input shaft 1 is connected to the driving rotor 3, and one end of the output shaft 2 is connected to the driven rotor 4. The driven rotor 4 and the driving rotor 3 are disc-shaped. One side of the driving rotor 3 is connected to the input shaft 1, and conductors 5 and permanent magnets 6 are distributed at circumferential intervals on the other side; one side of the driven rotor 4 is connected to the output shaft 2, and conductors 5 and permanent magnets 6 are distributed at circumferential intervals on the other side The magnetic poles of the permanent magnets 6 on the active rotor 3 and the driven rotor 4 are arranged in the circumferential direction, and the polarities of adjacent magnetic poles are different; The rotor 3 corresponds to the conductor 5 and the permanent magnet 6 on the driven rotor 4 one by one.

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PUM

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Abstract

The invention relates to a permanent-magnet torque-limiting shaft coupler, and the shaft coupler comprises an input shaft and an output shaft. One end of the input shaft is connected with a driving rotor, and one end of the output shaft is connected with a driven rotor. The driving rotor and the driven rotor are respectively provided with conductors and permanent magnets in the peripheral direction at intervals. The conductors and the permanent magnets on the driving rotor and the driven rotor are corresponding in a one-to-one manner. The shaft coupler carries out the torque transmission in a mode that the conductors cut magnetic induction lines, and has the buffering and damping effects and an effect of improving the dynamic performance of a shaft system in the power transmission with the instable rotating speed. The shaft coupler irons out the defects of a conventional shaft coupler, prolongs the service life of equipment, improves the bearing capability, enables the input and output to be synchronous quickly through slip frequency after an external barrier causes the desynchrony of the input and output, and does not need to restart.

Description

technical field [0001] The invention relates to a torque transmission component, in particular to a permanent magnet torque limiting coupling. Background technique [0002] Rigid couplings are widely used as mechanical parts that connect two shafts (driving shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque. When the equipment is blocked, the prime mover is damaged due to the load blocking. In addition, the existing permanent magnet coupling needs to be stopped and restarted to operate after the input and output are out of sync due to equipment stalling. In addition, the existing rigid coupling has high requirements on the coaxiality of the driving shaft and the driven shaft, which increases the difficulty of manufacture. Contents of the invention [0003] In view of the above problems, the present invention provides a permanent magnet torque limiting coupling that can automatically restore synchronization after the equipment ...

Claims

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Application Information

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IPC IPC(8): H02K49/04
CPCH02K49/043
Inventor 刁俊起
Owner 刁俊起
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