Two-horizontal-movement one-rotation three-freedom-degree series-parallel vibrating screen

Abstract

The invention discloses a two-horizontal-movement one-rotation three-freedom-degree series-parallel vibrating screen. The two-horizontal-movement one-rotation three-freedom-degree series-parallel vibration screen comprises a supporting frame, a transverse excitation device, a screen body, a rotation excitation device, a vertical excitation device, auxiliary limiting chains, springs, lifting ring bolts and a hopper. A material box frame is arranged on the supporting frame, the screen body is suspended on the supporting frame through the springs and the lifting ring bolts, the transverse excitation device, the rotation excitation device and the vertical excitation device can make the screen body vibrate transversely in a reciprocating mode, swing around the horizontal axis in a reciprocating mode and vibrate vertically in a reciprocating mode, and the auxiliary limiting chains are used for limiting the movement freedom degree of the screen body and improve the movement stability. The screen body can achieve two-horizontal-movement one-rotation three-freedom-degree vibration at most, magnitudes, frequencies, screen surface leaning angles, freedom degrees and other parameters in all directions can be adjusted, the screening efficiency is high, and the handling capacity within per unit interval is large, and the two-horizontal-movement one-rotation three-freedom-degree series-parallel vibrating screen has the advantages of being compact in structure, stable and reliable in working, low in equipment cost and running power consumption, easy to control and the like.

Description

technical field [0001] The invention relates to the field of vibrating screening equipment, in particular to a two-translation-rotation three-degree-of-freedom hybrid vibrating screen. Background technique [0002] At present, vibrating screens are widely used in energy, metallurgy, ceramics, building materials, chemical industry, agriculture, food processing and other industries, mainly for the classification of granular materials. The actual screening efficiency per unit time of the existing vibrating screen is low, the material dispersion on the screen surface is not high, the material distribution on the screen surface is uneven, and the screen penetration effect is poor; The screening effect of screening materials has been unsatisfactory, and the screen holes are easily blocked. The treatment method of increasing the vibration intensity of the vibrating screen is often limited by the rigidity of the screen box, and the dispersion, stratification and interlayer movement ...

AI Technical Summary

Problems solved by technology

The actual screening efficiency per unit time of the existing vibrating screen is low, the material dispersion on the screen surface is not high, the material distribution on the screen surface is uneven, and the screen penetration effect is poor; The screening effect of screening materials has been unsatisfactory, and the screen holes are easily blocked. The treatment method of increasing the vibration intensity of the vibrating screen is often limited by the rigidity of the screen box, and the dispersion, stratification and interlayer movement of the material on the screen surface are lacking. enough motivation

In addition, the vibration degrees of freedom of the existing vibrating screen are less, most of which are 1-2 degrees of freedom and the degrees of freedom are fixed, and the adaptability to the screening object is poor

The Chinese patent with application number 201110295715.0 designed by the first inventor of the present invention discloses a four-degree-of-freedom hybrid vibrating screen. Because the vertically arranged moving pair is used as the driving pair, the high-frequency vibration of the vibrating screen cannot be realized.

The Chinese patent No. 201110100682.X designed by the first inventor of the present invention discloses a three-degree-of-freedom hybrid vibrating screen. The vibrating motor provides power, and the inertial vibration of the vibrating motor will interfere with the vibration in the two horizontal directions, and the degree of freedom of the vibration of this technical solution lacks the degree of freedom of rotation, and the screening effect is limited.

The Chinese patent No. 200920143613.5 designed by the first inventor of the present invention discloses a four-degree-of-freedom hybrid vibrating screen, which can realize three-dimensional movement in space and one rotation. shaft rotation; in the technical solution described in this patent, the vibration in the vertical direction is driven by a linear motor, and the linear motor needs to overcome the load generated by its own gravity when moving, and it is difficult to achieve high-frequency vibration; the structural layout of the vibrating screen described in this patent is not Reasonable, cannot be used for screening of a large number of granular materials in industrial production

The Chinese patent No. 201310752446.5 designed by the first inventor of the present invention discloses a variable-degree-of-freedom parallel vibrating screen, which can realize vibration with a total of five degrees of freedom in a maximum of two movements and three rotations in space, but the screen mesh There are too many degrees of freedom of movement and the structure is complex, but in actual production, too many degrees of freedom of movement are not required; in addition, the rotation of the vibrating screen around the horizontal axis parallel to the length direction of the screen surface needs to rely on two SPS structures The coordinated motion of the center vibration chain is realized, so that the rotational vibration frequency and the load of the screen surface are limited

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