Linear motor

Abstract

The invention relates to a linear motor which comprises a control element, a positioning element, a movable plate, a static plate and a fixed slide rail. Permanent magnets are arranged on the static plate in an equidistant array, electromagnetic wire bobbins are arranged in the movable plate, the surfaces, facing each other, of the movable plate and the static plate are provided with flux elements, and each flux element is of a cylinder whose one end includes a wedge surface; the flux elements and the permanent magnets are arranged coaxially in one to one correspondence, and the flux elementsand the electromagnetic wire bobbins are arranged coaxially in one to one correspondence; the circular surface end of each flux element is embedded into the plate surface, and the wedge surface end istowards the outside; the flux element can rotate freely around the axis of itself and relative to the plate surfaces of the movable and static plates; and the movable and static plates are provided with rotation drivers respectively, and the rotation drivers are electrically connected with the control element. The linear motor is novel in structure and unique in principles, the movement density of a rotor can be improved effectively, and the service life of the linear motor is prolonged.

Description

technical field [0001] The invention relates to a motor, especially a linear motor. Background technique [0002] Linear motor is a device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. Its structure is simple. Compared with traditional rotary motors, its weight and volume are greatly reduced; linear motors can realize linear transmission. , to eliminate various positioning errors caused by intermediate links, so it has high positioning accuracy; therefore, it has fast response speed, high sensitivity, and good follow-up; at the same time, it can realize the positioning between the stator and the rotor There is no friction force transmission, so the work is safe, reliable and has a long service life. [0003] In the current linear motor structure, the mover needs to be installed on a fixed track, and there is a certain amount of friction between the mover and the fixed track; The direction of the...

AI Technical Summary

Problems solved by technology

[0003] In the current linear motor structure, the mover needs to be installed on a fixed track, and there is a certain amount of friction between the mover and the fixed track; The direction of the magnetic repulsion force is not parallel to the fixed track, so when the magnetic repulsion pushes the mover obliquely, it will squeeze the mover to the fixed track, thereby increasing the friction between the mover and the fixed track; the frictional resistance will affect The vibration intensity of the linear motor, and the heat generated by friction at the same time causes heating and wear of the components, which reduces the service life

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