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Magnetic CVT

A continuously variable transmission, magnetic glue technology, applied in clutches, fluid clutches, mechanical equipment, etc., can solve the problems of low temperature rise, low manufacturing and use costs, and achieve low temperature rise, low manufacturing and use costs, and powder particles. less wear effect

Inactive Publication Date: 2011-12-07
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides a magnetic rubber continuously variable transmission, which has all the advantages of the existing magnetic powder transmission, and does not have magnetic powder corrosion, serious powder wear, seizure phenomenon during startup, and magnetic powder due to mutual attraction. Problems such as agglomeration, stable output torque and speed change performance of sports machinery, low temperature rise, good output speed-control current linearity, can prolong the service life of the transmission, and there will be no precipitation and leakage problems, which can ensure precise control of sports machinery , lower cost to manufacture and use

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, the magnetic powder is composed of carbonyl iron powder and nanocrystalline soft magnetic alloy, wherein the weight percentage of carbonyl iron powder in the magnetic glue is 40%; the weight percent of nanocrystalline soft magnetic alloy in the magnetic glue is 14% %; the weight percentage of fatty acid metal salt in magnetic glue is 15%; the weight percentage of polyolefin oil in magnetic glue is 21%; The mixture, the weight percentage in the magnetic glue is 9%; the weight percentage of silicone oil in the magnetic glue is 1%;

[0033] The magnetic powder can adopt all the magnetic powders used in the field of mechanical transmission and braking in the prior art, and can achieve the purpose of the present invention, but the magnetic powder material and proportioning in this embodiment are applied to the magnetic glue output torque of the present invention without fluctuation, The lowest temperature rise and the highest work efficiency; colloidal fa...

Embodiment 2

[0036] In this embodiment, the magnetic powder is composed of carbonyl iron powder and nanocrystalline soft magnetic alloy, wherein the weight percentage of carbonyl iron powder in the magnetic glue is 41%; the weight percent of nanocrystalline soft magnetic alloy in the magnetic glue is 15%. %; the weight percentage of fatty acid metal salt in the magnetic glue is 15.5%; the weight percentage of polyolefin oil in the magnetic glue is 20%; the nano whiskers are silicon carbide nano whiskers and zinc oxide nano whiskers The mixture, the weight percentage in the magnetic glue is 8%; the weight percentage of silicone oil in the magnetic glue is 0.5%;

[0037] The magnetic powder can adopt all the magnetic powders used in the field of mechanical transmission and braking in the prior art, and can realize the purpose of the present invention; colloidal fatty acid metal salt can adopt all fatty acid metal salts or mixtures with colloidal properties as the colloidal support It is used...

Embodiment 3

[0040] In this embodiment, the magnetic powder is composed of carbonyl iron powder and nanocrystalline soft magnetic alloy, wherein the weight percentage of carbonyl iron powder in the magnetic glue is 39%; the weight percent of nanocrystalline soft magnetic alloy in the magnetic glue is 13% %; the weight percent of fatty acid metal salt in magnetic glue is 14.5%; the weight percent of polyolefin oil in magnetic glue is 22%; The mixture, the weight percentage in the magnetic glue is 10%; the weight percentage of silicone oil in the magnetic glue is 1.5%;

[0041] The magnetic powder can adopt all the magnetic powders used in the field of mechanical transmission and braking in the prior art, and can realize the purpose of the present invention; colloidal fatty acid metal salt can adopt all fatty acid metal salts or mixtures with colloidal properties as the colloidal support It is used to disperse and support the uniform distribution of magnetic powder in space, so that the phys...

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PUM

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Abstract

The invention discloses a magnetic glue stepless transmission, which adopts new material magnetic glue to replace the magnetic powder in the prior art, the magnetic glue can maintain the original shape in a free state, and can change itself into an arbitrary shape when subjected to shearing force , when not working, the magnetic glue can adhere to the wall of the radial gap between the power output shaft and the power input shaft, and does not prevent the relative free rotation between the power output shaft and the power input shaft, and after the coil is energized, the magnetic glue Like magnetic powder, it can generate torque between the power output shaft and the power input shaft, and the torque is proportional to the current in the coil, and the speed is controlled according to the magnitude of the current. It has stable output torque, low temperature rise, large slip power, and powder particles It has the advantages of small wear and long service life, and there will be no problems such as magnetic powder agglomeration during use, seizure, sedimentation, leakage, and small transmission torque when starting, and the manufacturing and use costs are low. It can be widely used and replace existing Some magnetic powder continuously variable transmissions.

Description

technical field [0001] The invention relates to a speed changer, in particular to a magnetic glue continuously variable speed changer. Background technique [0002] CVT is simpler in structure and smaller in size than traditional automatic transmissions, and can freely change the transmission ratio, so as to realize the whole process of CVT, make the speed change of the moving machinery stable, without frustration, and ensure the stable and smooth operation of the power machine. Therefore, in a certain It has been widely used in some special fields and vehicles. [0003] In the small power continuously variable transmission, there are magnetic powder continuously variable transmission, servo motor continuously variable transmission, stepper motor continuously variable transmission, frequency conversion adjustable continuously variable transmission and so on. [0004] The magnetic powder continuously variable transmission includes a coaxial power input shaft and a power outp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D37/02F16D35/00
Inventor 王家序梁锡昌吕宏展
Owner CHONGQING UNIV