Linear electromagnetic damper with serially-connected magnetic circuit structure

A linear electromagnetic, series magnetic circuit technology, applied in the direction of magnetic springs, springs/shock absorbers, springs, etc., can solve the problem that the loading force cannot be continuously changed, and achieve the effect of eliminating the fluctuation of the loading force, high power density and low loss
CN103233996AActive Publication Date: 2013-08-07HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2013-08-07

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Abstract

The invention relates to a linear electromagnetic damper with a serially-connected magnetic circuit structure, belongs to the technical field of motors and aims to solve the problems that prior thrust loading testing devices of linear motors can only load thrust on motors in a single direction, and loaded thrust cannot be changed continuously. The linear electromagnetic damper comprises a primary component and a secondary component, and air space is formed between the primary component and the secondary component; the primary component is composed of a primary iron core, an exciting winding and (2n-1) primary permanent magnets. (2n-1) winding grooves are evenly opened on the surface of the air space side of the primary iron core along the relative moving direction of the primary component and the secondary component, so that a primary tooth and winding groove alternating structure is formed on the primary iron core. Grooving directions of the winding grooves are perpendicular to the relative moving direction of the primary component and the secondary component. A coil is wound on each primary tooth, and coils on all the primary teeth are connected in series to form the exciting winding. A primary permanent magnet is embedded in each permanent magnet groove on the yoke portion of the primary iron core.
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Description

technical field

[0001] The invention relates to a linear electromagnetic damper with a series magnetic circuit structure and belongs to the technical field of motors. Background technique

[0002] In the field of modern processing industry, many occasions such as laser cutting, high-speed grinding machines, precision lathes, machining centers, etc. require high-speed and high-precision linear motion, while traditional methods can only be obtained by means of intermediate links such as rotating motors and ball screws. Linear motion, which inevitably has disadvantages such as large inertia, large friction, and backlash. In recent years, with the advancement of linear motor technology, more and more occasions have begun to directly apply linear motors to obtain linear motion. Due to the direct drive technology, the linear motor has the advantages of fast speed, high acceleration, high positioning accuracy, long stroke and fast dynamic response, which just meet the requirements...

Claims

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