An adjustable four-degree-of-freedom parallel vibrating screen

Abstract

The invention discloses a four-degree-of-freedom parallel vibrating screen capable of levelling. The four-degree-of-freedom parallel vibrating screen consists of a vibrating hopper, a levelling device, a parallel mechanism vibrating device and a screen body, wherein the levelling device is arranged above the parallel mechanism vibrating device and consists of three levelling branched chains, a static platform and a moving platform; the parallel mechanism vibrating device is adjusted to an optimal working state by mutual matching among the levelling branched chains and consists of opposite static platform panels, four vibrating branched chains, one limiting branched chain and a moving platform; and by mutual matching, the vibration of four degrees of freedom in total, namely two movements in the horizontal direction and two rotations in space can be realized. According to the four-degree-of-freedom parallel vibrating screen disclosed by the invention, an inclination angle of the whole vibrating screen can be automatically adjusted, and the vibration of four degrees of freedom in total, namely the two rotations and the two movements of the screen body can be realized, and the screen body can stably work under various severe environments; and the four-degree-of-freedom parallel vibrating screen is high in screening efficiency and high in treatment capacity, and can be used for screening operation of combine harvesters, vehicle-mounted vibrating screens and the like.

Description

technical field [0001] The invention relates to the technical field of vibrating screening, in particular to an adjustable four-degree-of-freedom parallel vibrating screen. Background technique [0002] At present, some combine harvesters, vehicle-mounted vibrating screens and other machines with screening devices need to work on various terrains, and the inclination of the screen body may not be suitable for screening operations, resulting in the vibrating screen not working normally. When working on a slope, the vibration The sieve forms a certain angle with the chassis of the vehicle body. When the inclination of the sieve body is too large, the screening efficiency of the vibrating screen will be greatly reduced, and the sieve hole will be blocked and the screen will be unevenly screened. Therefore, it is necessary to design a vibrating screen that can automatically adjust the inclination angle of the screen body, vibrate with multiple degrees of freedom of the screen bo...

AI Technical Summary

Problems solved by technology

[0002] At present, some combine harvesters, vehicle-mounted vibrating screens and other machines with screening devices need to work on various terrains, and the inclination of the screen body may not be suitable for screening operations, resulting in the vibrating screen not working normally. When working on a slope, the vibration The sieve forms a certain angle with the chassis of the vehicle body. When the inclination of the sieve body is too large, the screening efficiency of the vibrating screen will be greatly reduced, and it will cause the screen hole to be blocked and the screen to be unevenly screened.

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