Water pressure fluctuation excitation device

Abstract

The invention discloses a water pressure fluctuation excitation device, which is formed by communicating a water pressure pump station, a vibration output device and a water wave generator by a pipeline, wherein the water pressure pump station is characterized in that a water pump water inlet is communicated with a water tank; one path of a water pump water outlet is communicated with an overflow valve and the water tank, and the other path of the water pump water outlet is communicated with a check valve, a flow control valve and an energy accumulator; the vibration output device is characterized in that two ends of a pipe network are fixed on a pipe network frame by a horizontal compression spring and a vertical support spring, one end of the pipe network is communicated with the flow control valve by a high-pressure hose, and the other end thereof is communicated with an exciter by a high-pressure hose; and the water wave generator is characterized in that the exciter is driven by a motor of which the rotation frequency is controlled by a frequency converter, and the other end of the exciter is communicated with a water tank. The water pressure fluctuation excitation device is simple in structure and rational in design and has a practical application value.

Description

technical field [0001] The invention relates to an excitation device, in particular to a technical scheme in which water is used as a working medium, and a hydraulic pumping station, a vibration output device and a water wave generator are connected through pipelines to form a water pressure fluctuation excitation device. Background technique [0002] Most of the existing vibration equipment still relies on inertial excitation. This kind of vibration equipment has problems such as large vibration mass, high power consumption, and difficult adjustment of vibration parameters. It cannot be realized by inertial vibration excitation device with belt drive Heavy-duty start-up vibration brings great inconvenience to industrial production. [0003] Because hydraulic technology has the advantages of high power density, convenient power transmission and control, easy cooling and overload protection, it is widely used in engineering. Hydraulic excitation equipment is widely used in r...

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Problems solved by technology

[0004] The existing hydraulic excitation has two structures: valve-controlled and pump-controlled. Since the vibration of the valve-controlled excitation is realized by the rapid reversing of the valve, there are disadvantages of throttling loss and the mutual influence of frequency and amplitude; while the DC pump The control is to drive the inertial vibrator to vibrate through the hydraulic motor, so it is essentially inertial vibration

[0005] Existing hydraulic pipe network excitation has many components in the system, complicated pipe connections, and the reciprocating movement of the oil in the pipes, resulting in poor heat dissipation conditions, which can easily cause the temperature of the oil to rise and affect the performance of the system

Moreover, the working medium used in the hydraulic excitation technology is hydraulic oil, which has the disadvantages of polluting the environment and being flammable. In some occasions, such as mine mining, pharmaceutical manufacturing and food production, once the hydraulic oil leaks, it is easy to cause explosion accidents and The problem of polluting the environment

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