A kind of permanent magnet clutch and its assembly method

A clutch and permanent magnet technology, applied in the field of clutches, can solve the problems of mechanical wear, high noise, and inability to resist earthquakes.

Active Publication Date: 2021-04-30
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of existing clutches such as mechanical wear, high noise, inability to withstand shocks, and the need for lubrication, the present invention provides a permanent magnetic clutch and its assembly method

Method used

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  • A kind of permanent magnet clutch and its assembly method
  • A kind of permanent magnet clutch and its assembly method
  • A kind of permanent magnet clutch and its assembly method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] see figure 1 , this embodiment provides a permanent magnet clutch. Wherein, the permanent magnet clutch includes a driving disc 3 and a driven disc 4 . There is no direct contact between the driving disc 3 and the driven disc 4, and separation and coupling are realized through the action of a magnetic field, thereby realizing the clutch clutch process.

[0050] see figure 2 as well as image 3 , the driving disk 3 includes the driving inner shaft 1, the magnet fixed disk 5, the magnetic coil 1 7, the driving outer shaft 11, the back iron block 6 and the magnetic coil 2 8. The magnet fixed disk 5 is arranged coaxially with the driving inner shaft 1 and is fixedly connected. The active inner shaft 1 and the magnet fixing disk 5 can be connected by means of welding, clamping, bonding, etc., and can also be directly integrally formed with the magnet fixing disk 5 . The number of magnetic coils 17 is multiple, and a plurality of magnetic coils 7 are arranged in a circl...

Embodiment 2

[0074] This embodiment provides a permanent magnet clutch, which refines the structure on the basis of Embodiment 1. Wherein, the distance between the fixed magnet disk 5 and the active outer shaft 11 is d, and the value range of d is 2-4 mm. Of course, what needs to be explained here is that the smaller the value of the distance d, the better, but when the value of the distance d is too low, especially when the value of the distance d is lower than 2mm, the manufacturing cost of the permanent magnet clutch Can greatly improve, and this is because the magnetic circle two 8 and the corresponding magnetic circle one 7 are easy to attract together because the distance is too low.

[0075] In some embodiments, the preset distance d is 3 mm, and the distance d can be around 3 mm, and an optimal effect can be achieved at this time.

[0076] In other embodiments, the distance d is set according to the specific size of the clutch. For example, when the magnetism of the magnetic coil...

Embodiment 3

[0078] This embodiment provides a permanent magnet clutch, which refines the structure on the basis of Embodiment 1. Specifically, the projection planes of all magnetic coils one 7 on the end face of the active outer shaft 11 are located on the same projection sector, and the total projection area accounts for 70%-90% of the projection sector area. The total projected area of ​​all magnetic coils 2 8 on the outer wall of the active outer shaft 11 accounts for 70%-90% of the area of ​​the cylinder where the projected surface is located. What needs to be explained here is that, in this embodiment, the larger the value of these area ratios, the better the performance of the permanent magnet clutch. However, when the area ratio is greater than 90%, the gap will be too small, which is not conducive to the heat dissipation of the clutch when it is working, and then causes the magnetism of each magnetic ring to fade. Similarly, when the area ratio is less than 70%, the gap will be t...

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PUM

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Abstract

The invention discloses a permanent magnet clutch and an assembly method thereof. The permanent magnet clutch includes a driving disc and a driven disc. The driving disk includes a driving inner shaft, a magnet fixed disk, a plurality of magnetic rings 1, a driving outer shaft, a plurality of back iron blocks and a plurality of magnetic rings 2. The driven disc includes a driven shaft, an outer sleeve and an inner sleeve. The magnet fixed disk is coaxial with the active inner shaft, the magnetic coil one is installed on the magnet fixed disk, and the magnetic poles of the two adjacent magnetic coil ones are oppositely arranged. The active outer shaft is sleeved outside the active inner shaft, and the back iron block is embedded in the outer wall of the active outer shaft. The second magnetic coil is fixed on the active outer shaft, and the magnetic poles of the two adjacent magnetic coils are oppositely arranged. The magnetic ring two is covered on the corresponding back iron block, and is separated from the inner sleeve. The overcoat is sheathed outside the driving outer shaft, and the overcoat is fixed with the driven shaft to accommodate the driving disc. The inner sleeve is fixed on the inner wall of the outer coat. The master and slave parts of the clutch of the present invention have no direct contact, thereby avoiding mechanical wear of the clutch, reducing lubrication requirements, and having the advantages of vibration isolation and noise reduction.

Description

technical field [0001] The invention relates to a clutch in the technical field of machinery, in particular to a permanent magnet clutch, and also to an assembly method of the clutch. Background technique [0002] The clutch is similar to a switch, which engages or disengages the power transmission function. The active part and the driven part of the clutch mechanism can be temporarily separated, and can be gradually engaged, and it is possible to rotate relatively during the transmission process. Usually, the clutch is installed between the engine and the transmission, and is an assembly directly connected with the engine in the automobile drive train. The clutch is generally installed together with the flywheel set of the engine crankshaft, and it is a component that cuts off and transmits power between the engine and the vehicle transmission system. However, there is contact between the driving part and the driven part of the existing clutch, which may cause problems of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K49/10H02K15/03
CPCH02K15/03H02K49/106
Inventor 陈科史洪扬郑红梅房景仕郭亚军殷磊郑明睿
Owner HEFEI UNIV OF TECH
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