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

Inactive Publication Date: 2006-12-13
TAIYUAN UNIV OF TECH
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Problems solved by technology

However, the problem with this device is that vibration parameters such as exciting force, amplitude, and frequency cannot be adjusted, and cannot meet the requirements of multi-working conditions; since the screen, screen body, and vibrator all participate in the vibration, the mass of the vibration is large , the power consumption is large; the increase of the exciting force causes the bearing to bear a large load, the bearing friction heats up seriously, and the damage is quicker

Method used

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  • Frequency variable hydraulic vibration exciter
  • Frequency variable hydraulic vibration exciter

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Embodiment Construction

[0011] The main motor adopts a three-phase asynchronous motor, which is fixedly connected to the frame 1 by bolts. The shock wave device is a high-frequency reversing device, which affects the vibration frequency of the system. The shock wave shaft core 3 realizes the reversing through reciprocating linear motion. The shock wave motor adopts a low-power four-stage three-phase asynchronous motor and is connected in Y shape. The shock wave motor is connected with the shock wave shaft core 3 through the eccentric wheel 11, the connecting rod 7, and the pin shaft 10. Both the shock wave motor and the valve body 4 are connected to the frame 1 through bolts. The hydraulic cylinder adopts a differential cylinder, and the two ends are connected by earrings. The end of the rod is connected to the support seat of the vibrating screen body through a pin shaft, and the other end is connected to the foundation support seat through a pin shaft. The electromagnetic overflow valve 12 adopts...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/18B07B1/42B07B1/28
Inventor 寇子明李军霞李天富刘保明王峰山张建民于超英
Owner TAIYUAN UNIV OF TECH
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