Active and passive integrated vibration isolator and vibration isolation method

Abstract

An active and passive integrated type vibration isolator comprises a connecting plate. The bottom of the connecting plate is fixedly connected with a hollow column, and armatures are embedded into the hollow column. The lower portion of the hollow column is located in a cylinder, a sliding bearing is fixedly arranged in the cylinder and arranged on the periphery of the hollow column in a sleeving mode, and the sliding bearing is in sliding connection with the hollow column. The periphery of the sliding bearing is sleeved with an excitation coil or a permanent magnet, and the excitation coil or the permanent magnet is fixedly connected with the cylinder. When the vibration isolator is powered on, part or all of currents in the armatures are located in a magnetic field generated by the excitation coil or the permanent magnet. A spring is connected between the bottom of the connecting plate and the top of the cylinder. A vibration detection sensor is fixedly mounted on the connecting plate, and the cylinder is provided with a control chip. The invention further discloses a method for carrying out active vibration isolation through resistance generated when electromagnetic force and the armatures cut the magnetic field and for carrying out passive vibration isolation through the spring. According to the active and passive integrated type vibration isolator and the method, the characteristics of active vibration isolation and the characteristics of passive vibration isolation are integrated, meanwhile, the defects that passive vibration isolation is poor in adaptability and active vibration isolation is high in power consumption are overcome, and self-adaptive control over vibration of equipment can be achieved.

Description

technical field [0001] The invention relates to the technical field of vibration isolation, in particular to an integrated vibration isolator integrating an active vibration isolator and a passive vibration isolator. Background technique [0002] Controlling the vibration caused by large power devices and mechanical equipment to meet the standard requirements is the key to the design of mechanical systems in industry, civil, especially transportation, precision instruments and ship design. The use of vibration isolation structures is to reduce the vibration of power devices and equipment. One of the most effective ways for vibration transmission and ground, road vibration or bumps to cause vibration transmission. There are two types of vibration isolation devices: passive vibration isolation and active vibration isolation. Passive vibration isolation usually installs rubber vibration isolators, wire rope vibration isolators and other devices between the vibration source equi...

AI Technical Summary

Problems solved by technology

[0004] The applicant improves on the above-mentioned shortcomings in the prior art, and provides an active-passive integrated vibration isolator and a vibration isolation method. The shortcomings of poor vibration isolation adaptability and high power consumption of active vibration isolation can realize adaptive control of equipment vibration

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