Variable input three-dimensional vibrating screen mechanism with analyzing forward position kinematic

Abstract

The invention relates to a variable input three-dimensional vibrating screen mechanism with analyzing forward position kinematic. The mechanism comprises a screen frame (6), a frame (0), a planar five-rod mechanism, and a space branch chain. The mechanism is characterized in that five members of the planar five-rod mechanism: the frame (0), a member I (1), a member II (2), a member III (3) and a member IV (4) are sequentially connected respectively through a rotary pair I (R1), a rotary pair II (R2), a rotary pair III (R3), a rotary pair IV (R4) and a rotary pair V (R5) with parallel axis. The member II (2) is connected with the screen frame (6) through a rotary pair VI (R6) with the axis parallel to the member II (2). One end of the member V (5) in the space branch chain is connected with the screen frame (6) by a ball pair I (S1) while the other end is connected with one end of the member V (7) through a ball pair II (S2). The other end of the member V (7) is connected with the frame (0) through the rotary pair VI (6). When three driving rods on the frame are controlled to move, the screen frame can obtain a translational and two rotatable moveable outputs. The mechanism is simpler in structure, has an analyzing forward position kinematic solution, and is easy to manufacture and process.

Description

technical field [0001] The invention relates to a three-dimensional motion vibrating screen mechanism, in particular, it provides a new type of three-dimensional motion mechanism for parallel structure parallel motion vibrating screens, parallel motion entertainment equipment, parallel robots and the like. Background technique [0002] At present, the most typical traditional vibrating screens are mainly circular vibrating screens and linear vibrating screens. Vibrations are generated by inertial vibrators, and the structure is complex. Insufficient turnover of materials, the sieve holes are easily stuck by "sieve grains", resulting in low screening efficiency. [0003] Patent application number 2006100881264 provides a two-degree-of-freedom space mechanism for parallel motion equipment. The output motion of the platform is one translation and two rotations, one of which is non-independent motion and non-controllable. In this way, In the case where three independent degrees...

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Problems solved by technology

[0002] At present, the most typical traditional vibrating screens are mainly circular vibrating screens and linear vibrating screens. Vibrations are generated by inertial vibrators, and the structure is complex. Insufficient turnover of materials, sieve holes are easily stuck by "sieve grains", resulting in low screening efficiency

[0003] Patent application number 2006100881264 provides a two-degree-of-freedom space mechanism for parallel motion equipment. The output motion of the platform is one translation and two rotations, one of which is non-independent motion and non-controllable. In this way, In the case where three independent degrees of freedom are required, the mechanism cannot complete the corresponding work. Therefore, in order to meet the development and practical application of parallel motion equipment with different needs, it is necessary to provide three parallel vibration screen mechanisms with independent output motion.

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