Electromagnetic actuator and electromagnetic vibration control device

Abstract

The invention provides an electromagnetic actuating mechanism and an electromagnetic vibration control device. The electromagnetic actuating mechanism comprises a stator structure, a circumferential conductive structure and a mover structure, and the circumferential conductive structure is used for forming a driving magnetic field for driving the mover structure to move along a first direction; the mover structure comprises a mover body, and the mover body is provided with a first magnetic part and a second magnetic part which are symmetrically arranged in the first direction. In the running state of input current, the driving magnetic field can drive the mover structure to move in the first direction, and vibration output of the electromagnetic executing mechanism is achieved. The first magnetic part and the second magnetic part can magnetize the stator structure, in a non-operation state without current input, when external disturbance occurs and the rotor structure deviates from a static balance position, magnetic acting force opposite to the moving direction of the rotor structure can be generated, and the rotor structure is forced to restore to the static balance position, so the automatic balance of the mover structure in the electromagnetic actuating mechanism is realized.

Description

technical field [0001] The invention relates to the technical field of vibration control, in particular to an electromagnetic actuator and an electromagnetic vibration control device. Background technique [0002] The operation of mechanical equipment will generate vibration, which will be transmitted by the mechanical equipment to the outside world and radiate noise to the outside world. The main sources of mechanical equipment vibration are internal combustion engines, power pumps and various power and transmission mechanisms, and the vibration of power and transmission mechanisms is easy to form coupling with the natural vibration of the structural system where they are located, which increases the severity of vibration and noise problems. At the same time, with the increase in power and speed of mechanical equipment, the problems of vibration and noise are becoming more and more serious. [0003] At present, the rapid development and engineering application of vibration...

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Problems solved by technology

[0004] However, the existing electromagnetic actuator will be affected by external vibration when it is not powered on, so that the mover of the electromagnetic actuator deviates from the working position, thereby affecting the subsequent work of the electromagnetic actuator; and, the electromagnetic actuator The electromagnetic force on the mover will change with its movement, so the electromagnetic actuator still has the problem of non-linear output force, which affects its actual use effect; at the same time, the electromagnetic actuator is also light in weight, resulting in The output force is small, which cannot meet the usage scenarios that require a large output force

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