Eccentric distance radial adjustable inertia exciter and application thereof

Abstract

The invention provides an eccentric distance radial adjustable inertia exciter and an application thereof, and belongs to the technical field of mechanical engineering. According to the eccentric distance radial adjustable inertia exciter and the application thereof, stepless continuous adjustment of the eccentric distance of a mass block in the radial direction is achieved, and then the magnitude of the excitation force is adjusted; and meanwhile, different excitation effects can be obtained through combination use of the exciters. The eccentric distance radial adjustable inertia exciter comprises a rotary power source, an exciter shell body and a rotary body. A power output shaft of the rotary power source is fixedly connected with a power input shaft of the rotary body. The exciter shell body is arranged on the outer side of the rotary body. The rotary body internally comprises a supporting plate, a stepping motor, a lead screw, a nut and the mass block. The stepping motor is fixed to the supporting plate. The supporting plate is installed on the inner wall of the rotary body. An output shaft of the stepping motor and one end of the lead screw are coaxially and fixedly connected. The other end of the lead screw is connected with the rotary body. After the lead screw and the nut are subjected to clearance elimination, a lead screw nut pair is formed. The mass block is fixedly connected with the nut. The center axis of the lead screw and the center line of a rotary shaft of the rotary body are orthogonal and arranged in the radial direction.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering, and specifically relates to applying a periodic circular alternating exciting force and a one-way exciting force to a mechanical device that needs to apply a precise load or a certain frequency load in the process of mechanical engineering and mechanical testing. Eccentricity radially adjustable inertial vibrator of vibration force and excitation torque and its application. Background technique [0002] In modern industrial production and scientific research, in the fields of mechanical processing and manufacturing, roads and bridges, it is often necessary to obtain an exciting force of accurate size and direction, or a certain frequency of exciting force to ensure the quality, performance and accuracy of the test process of the product. The method adopted is to use the inertial vibrator to apply a certain form and size of vibration to the excited test piece. In engineering tests,...

AI Technical Summary

Problems solved by technology

However, the gear transmission is noisy, wears quickly, and requires high manufacturing and installation accuracy. Once worn, the transmission will be unstable. At the same time, the gear transmission mechanism must have a sealing device that needs lubrication. The transmission process generates heat and is inconvenient to disassemble.

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