Film-type two-way hydraulic vibration near-resonance type double-drum vibrating mill

Abstract

The invention provides a film-type two-way hydraulic vibration near-resonance type double-drum vibrating mill, comprising drums, film-type hydraulic vibration exciters, near-resonance spring groups, bases and hydraulic devices, wherein each film-type hydraulic vibration exciter comprises a film made of a flexible material, and two parallel rigid panel I and rigid panel II; the film is arranged between the rigid panel I and the rigid panel II; the film can form a closed space for containing a liquid independently or together with the rigid panel I or the rigid panel II; the liquid can pass in and out of the closed space through a channel; the closed space is communicated with a hydraulic source of which the flow direction periodically changes through the channel; the vibrating mill does not need a bearing; the hydraulic device does not need a piston; the exciting force can be completely balanced; the film-type two-way hydraulic vibration near-resonance type double-drum vibrating mill is simple to manufacture, convenient to repair, low in cost, high in vibration force, free of abrasion, free of leakage, free of heat dissipation, even in vibration force distribution, low in energy consumption, and small in external vibration interference; stepless frequency modulation and amplitude modulation can be achieved without shutdown; and the frequency modulation is uncorrelated to the amplitude modulation.

Description

technical field [0001] The invention relates to a near-resonance type four-barrel vibration mill driven by a thin-film hydraulic vibration exciter capable of generating special inertial excitation force, and belongs to the technical field of vibration utilization. Background technique [0002] Existing vibrating mills use mechanical exciters or vibrating motors as excitation sources to generate vibrations, and most of them are non-near-resonant vibrating mills. Vibration mill has the following disadvantages: [0003] 1) Existing vibratory mills use mechanical vibrators or vibrating motors as excitation sources to carry out vibration utilization work, which usually produces a large inertial excitation force, which cannot be balanced and must be borne by the mill system itself, most of which are Partly borne by the exciter and the bearing, it will lead to heating, wear, high maintenance frequency and low service life of the bearing, resulting in premature failure, sudden acci...

AI Technical Summary

Problems solved by technology

[0003] 1) Existing vibratory mills use mechanical vibrators or vibrating motors as excitation sources to carry out vibration utilization work, which usually produces a large inertial excitation force, which cannot be balanced and must be borne by the mill system itself, most of which are Partially borne by the exciter and bearings, resulting in bearing heat, wear, high maintenance frequency, and low service life, resulting in premature failure, sudden accidents, etc. This situation has a particularly serious impact on the continuous operation of the mill

[0004] 2) The lubrication, heat dissipation, sealing and transmission between the bearing and the shaft become very complicated, which brings many difficulties to manufacturing, installation and maintenance, and also reduces the reliability

[0005] 3) The vibration force of the vibrator is concentrated and cannot be evenly distributed, which makes the structure not well stressed

[0006] 4) It is difficult for mechanical exciters or vibration motors to make multiple exciters work in parallel and synchronously

[0007] 5) It is necessary to stop the machine to adjust the amplitude of the machine

[0008] 6) Due to the high vibration intensity of the mill, many dynamic loads are transmitted to the ground, causing interference to the working environment

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