Disk type torque limiting permanent magnet coupler

Abstract

The invention discloses a disk type torque limiting permanent magnet coupler. The disk type torque limiting permanent magnet coupler comprises a first shaft and a second shaft which are arranged in a split type and coaxial with each other, wherein a first shaft sleeve, a sliding sleeve I and a conductor rotary disk are arranged on the first shaft, the conductor rotary disk is composed of a steel disk and a conductor disk made of good conductive material, a portion of the first shaft sleeve is a square shaft, and matched with the first shaft sleeve through a square hole formed in the sliding sleeve I, the sliding sleeve I can move in the axial direction, limiting structures are arranged on two end faces of the conductor rotary disk, a second shaft sleeve and a load connection disk are arranged on the second shaft, the load connection disk is connected with a permanent magnet rotary disk through a connection rod, a permanent magnet is installed on the permanent magnet rotary disk, and positions of the permanent magnet and the conductor disk are corresponding to each other. According to the disk type torque limiting permanent magnet coupler, structure of the second shaft is simplified, only the one permanent magnet rotary disk is arranged on the disk type torque limiting permanent magnet coupler, the weight of the second shaft is greatly reduced, the second shaft is stable during the rotation process, and therefore mechanical friction and wear are reduced, vibratory interference is avoided, loss of a drive component is reduced, vibration is isolated, noise is reduced, installation and debugging are simple, and the size of an air gap is accurate to control.

Description

technical field [0001] The invention relates to a driving device, in particular to a disc-type moment-limiting permanent magnetic coupler adopting the principle of permanent magnet eddy current induction. Background technique [0002] The existing motor systems basically have the phenomenon of large horses and small carts, and the waste of electric energy is serious, and the traditional mechanical coupling inevitably transmits vibration from one end to the other through the coupling, which obviously does not have the ability to isolate vibration and Energy-saving performance, the "12th Five-Year Plan for Energy Conservation and Emission Reduction" clearly proposes to use energy-saving technologies such as permanent magnet eddy current flexible transmission to optimize system operation and control, and improve the overall operating efficiency of the system. In this case, the permanent magnet coupler is a new ideal choice in the field of motor energy saving. In 1998, the Chin...

AI Technical Summary

Problems solved by technology

In 1998, the Chinese invention application 98802726.7 filed by the MagnaDrive Company of the United States disclosed an adjustable magnetic coupler, which has: two conductor rotors installed on the first shaft and two permanent magnet rotors installed on the second shaft. The structure is complex, The product is heavy, and it is difficult to manufacture, process, install and debug. The magnet end can only be installed on the load side, and it cannot be used well in the vertical motor environment. Due to the heavy weight, the stability of the operation is affected, which also limits the application occasions.

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