Frequency variable hydraulic vibration exciter

A vibration-exciting device and hydraulic technology, which is applied in the direction of fluid, solid separation, and filter screens using vibration, can solve the problem that the vibration parameters of excitation force, amplitude, and frequency cannot be adjusted, cannot meet multi-working conditions, and the bearing bears a large load and other problems, to achieve the effect of light weight, simple structure, and small vibration mass
CN1289213CInactive Publication Date: 2006-12-13TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2006-12-13
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A frequency-variable hydraulic vibration exciter for the sieving of coal is composed of hydraulic cylinder, hydraulic pump station consisting of main motor, hydrauic oil pump, electromagnetic overflow valve, check valve, oil tank, etc and the wave exciter consisting of wave-exciting motor, eccentric wheel, etc.
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Description

technical field

[0001] The invention relates to a vibration excitation device, in particular to a frequency conversion hydraulic vibration excitation device which adopts a frequency conversion hydraulic reciprocating shock wave device to control a differential hydraulic cylinder to drive a vibrating screen to generate linear vibration. Background technique

[0002] The invention patent with application number 02143488.3 proposes an inertial vibrator. The inertial vibrator includes a guide rod, an eccentric mass, a return spring, a main shaft, a fixed seat and the like. During the start-up process of the inertial exciter, the radius of rotation of the center of mass of the eccentric mass changes continuously from the minimum value to the maximum value; during the stop process, the radius of rotation of the center of mass continuously changes from the maximum value to the minimum value. Therefore, the moment of inertia when the inertial vibrator starts and the excitation forc...

Claims

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