A surface-mounted magnetic screw and its processing method
A technology of magnetic lead screw and processing method, which is applied in the direction of permanent magnet clutch/brake, manufacturing motor generator, electrical components, etc., can solve the problems of difficult processing of permanent magnet of magnetic lead screw and segmented permanent magnet assembly, and achieve reduction Process complexity, improved splicing accuracy, and high residual magnetism
Active Publication Date: 2018-04-17
JIANGSU UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to solve the difficulty in processing the permanent magnet of the magnetic screw and the assembly problem of the segmented permanent magnet, and propose a simple and effective method that is easy to implement in engineering
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[0063] As a specific embodiment of the present invention, the present invention will be described below in conjunction with the accompanying drawings, as figure 1 and figure 2 As shown, the present invention is a surface-mounted magnetic screw and a processing method thereof, comprising a magnetic screw 1 and a magnetic nut 2 coaxial with an air gap therebetween. The magnetic nut 2 is empty sleeved outside the magnetic screw mandrel 1. The magnetic nut 2 rotates along the Z axis, and according to the working principle of the magnetic screw, the magnetic screw 1 moves linearly along the Z axis. Therefore, the axial length of the magnetic nut 2 is smaller than the axial length of the magnetic screw 1, and the specific size is determined according to the required characteristics of the magnetic screw.
[0064] The magnetic screw 1 is composed of a first permanent magnet a4-1, a first permanent magnet b4-2, an electrical iron rod 3-1, a limiter a5-1, and a limiter b5-2. Such a...
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Disclosed are a surface-mounted magnetic lead screw and a processing method therefor, falling within the field of magnetic lead screws. The magnetic lead screw is composed of a segmented permanent magnet, an electric iron rod and a stopper. A magnetic nut is composed of a segmented permanent magnet and an electric iron ring. In the magnetic lead screw, the segmented permanent magnet is surface-mounted on an outer surface of the electric iron rod; and in the magnetic nut, the segmented permanent magnet is surface-mounted on an inner surface of the electric iron ring. The method comprises: flattening the inner diameter of a segmented permanent magnet of a magnetic lead screw, turning an outer surface of an electric iron rod, according to the size of the segmented permanent magnet, to form an electric iron rod the axial section of which is a regular polygon, and at the same time, installing a stopper at an end part of the electric iron rod; and flattening the outer diameter of a segmented permanent magnet of a magnetic nut, and drilling an electric iron ring, according to the size of the segmented permanent magnet, to form an electric iron ring the axial section of which is a regular polygon. By means of cooperation of a permanent magnet and a ferromagnetic material, the processing difficulty of a spiral permanent magnet and the assembly difficulty of a magnetic lead screw can be effectively reduced, and the thrust density and the mechanical strength are improved.
Description
technical field [0001] The invention relates to a manufacturing technology of a high-thrust density magnetic screw, in particular to an equivalent technology of a spiral magnetic circuit and a method for assembling the magnetic screw. Background technique [0002] The research on the magnetic screw actuation system is still in its infancy at home and abroad. The magnetic screw has the characteristics of high thrust density, no contact friction, and simple maintenance. It can convert rotary motion into linear motion through magnetic field coupling, and vice versa. Therefore, it has good application prospects in many occasions such as aerospace, marine power generation, artificial heart and other fields. At present, most of the research on magnetic screw is surface-mounted magnetic screw with permanent magnets radially magnetized and alternating N and S poles. However, this structure has the problems of magnetic screw assembly and helical permanent magnet processing. [0003...
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IPC IPC(8): H02K49/10H02K15/00
CPCH02K15/00H02K49/102H02K49/10
Inventor 赵文祥凌志健吉敬华刘国海徐媚媚胡德水
Owner JIANGSU UNIV