Variable-rigidity double-mass vibration motor type super-huge vibration mill

Abstract

The invention relates to a vibration mill, in particular to a variable-rigidity double-mass vibration motor type super-huge vibration mill, more particularly to a variable-rigidity double-mass vibration motor type common vibration mill or super-huge vibration mill. The vibration mill comprises an upper mass, a lower mass, a master vibration spring, an isolation vibration spring and a base plate, wherein the upper mass comprises a barrel body, a feed port, an end cover, a discharge port, a vibration motor, a right connecting rack, a milling medium, a left connecting rack and a counterweight body; the barrel body can be actively supported on the lower mass through the master vibration spring, the right side of the barrel body is rigidly and fixedly connected with the vibration motor by using the right connecting rack, and the axis of the drive side master vibration spring is located between the gravity axis of the barrel and the gravity axis of the vibration motor; and the lower mass is supported on a pedestal through the isolation vibration spring, and the left side of the barrel is rigidly and fixedly connected with the counterweight body with mass balanced to the right side.

Description

technical field [0001] The present invention relates to a vibrating mill of variable stiffness two-mass vibrating motor type extra-large vibrating mill, in particular to a general vibrating mill or extra-large vibrating mill with variable stiffness, two-mass body and vibrating motor excitation form, which belongs to vibration utilization field of engineering technology. Background technique [0002] Vibrating mill is a vibrating mechanical equipment that uses the principle of vibration to complete material crushing operations. Ordinary vibrating mills are composed of one or more cylindrical or other shaped containers supported on springs. This container either rotates at the center of gravity or passes through multiple The vibrating motor tuned on the center of gravity performs an unbalanced motion similar to circular vibration, and the grinding medium (the material to be ground and the medium) installed in the mill container collides and rubs, and the crushing of the materi...

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Problems solved by technology

[0004] (1) High energy consumption: Due to the existence of low-energy areas inside the mill cylinder and the constant stiffness system, the energy consumption of the mill system under variable load characteristics is still high and the efficiency is low

[0005] (2) Structural fragility: the local body structure is weak, easily twisted, and easily damaged; resulting in high frequency of repairs or ineffective repairs

[0006] (3) Bearing problems: There are impacts, collisions, and frictional loads between the various parts of the bearings, resulting in a vicious cycle of heat generation, wear, and lubricant waste pollution, which greatly increases the probability of bearing failure

[0007] (4) Spring problem: Metal coil springs, air springs or rubber springs are mostly used in vibratory mills. When there is damping, the amplitude is large and the body stress is large. When the damping is large, the amplitude is small and the efficiency is significantly reduced.

[0008] (5) Vibration isolation problem: The vibration isolation effect of the single-mass vibration system is poor when it is working. Under the continuous, large and changing impact, collision, shear and other variable loads, on the one hand, the vibration will be directly transmitted to the equipment foundation and affect To the peripheral equipment and buildings, in severe cases, the machine will be damaged and stop production, the life of the long-term running machine will be shortened, the wearing parts will fail prematurely, and the frequency of maintenance will increase, which will affect the normal operation of the vibration mill; on the other hand, it will generate large noise as a source of noise pollution Seriously affect the operator and the surrounding environment or make it intolerable

[0009] (6) Restriction of large-scale: the above problems have always been a problem that has plagued the development of vibratory mills, and it has been severely restricted by large-scale or super-large

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