Non-contact electromagnetic vibration exciter with surface morphology memory function and application thereof

Abstract

The invention belongs to the field of mechanical vibration and testing, and particularly relates to a non-contact electromagnetic vibration exciter with a surface morphology memory function and application thereof. According to the technical scheme, the non-contact electromagnetic vibration exciter comprises a platform, an auxiliary positioning frame, a mechanical gripper and an excitation structure, wherein the auxiliary positioning frame is arranged on the platform through a bearing; the mechanical gripper comprises a connecting rod, an upper end fixing plate, outer arms, inner arms, a lowerend fixing plate and a gripper end surface, the connecting rod is connected with the auxiliary positioning frame, the upper end fixing plate and the lower end fixing plate are correspondingly connected at the two ends of the connecting rod in a clamped mode, the two ends of each outer arm are correspondingly installed on the upper end fixing plate and the gripper end surface, one end of each inner arm is connected with the lower end fixing plate, and the other end of each inner arm is installed in the middle of the corresponding outer arm; and the excitation structure is arranged in the mechanical gripper. According to the non-contact electromagnetic vibration exciter, the morphology of the electromagnetic vibration exciter can be accordingly changed according to metal blades with different surface morphologies so that a better excitation effect can be obtained, and then vibration and the strength test can be carried out more accurately.

Description

technical field [0001] The invention belongs to the field of mechanical vibration and testing, in particular to a non-contact electromagnetic exciter with surface topography memory function and its application. Background technique [0002] The exciter is a device attached to some machinery and equipment to generate excitation force, and is an important part of using mechanical vibration. The vibrator can make the excited object obtain a certain form and size of vibration, so as to perform vibration and strength tests on the object, or to calibrate vibration testing instruments and sensors. The vibrator can also be used as an exciting part to form a vibrating machine to realize the conveying, screening, compacting, forming and tamping of soil and gravel for materials or objects. [0003] The existing non-contact exciter is realized by electromagnet, and by adjusting the current in the coil, an adjustable force is generated on the ferromagnetic structure or the structure ins...

AI Technical Summary

Problems solved by technology

The existing vibrator cannot change its own shape when targeting metal blades of different shapes, and cannot guarantee a good vibration effect, so that vibration and strength tests cannot be performed more accurately

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