Mechanism with continuous rotational and adjustable reciprocating motion for mechanical equipment of processing plants

The article is devoted to the study of the structural and kinematic analysis of the actuator of the mechanical equipment of the processing plant. The mechanism under study is made in the form of a double cardan joint, which in its structure contains only hinges, i.e. rotary pairs. Such a device is used in rotary-vibratory mixers to ensure intensive and uniform mixing of ore pulp, prevent the settling of solid particles, accelerate the dissolution and dispersion of reagents, and produce stable, homogeneous mixtures in flotation, thickening, reagent conditioning, and pulp-preparation processes at mineral processing plants. This mechanism structurally differs from the known double cardan joints in that when its leading and driven shafts are coaxial, the mechanism operates as a conventional double cardan joint, and if it deflects the leading shaft from the axis of rotation of the driven shaft at an angle greater than zero to 90˚, then the driven link begins to perform a new type of motion, i.e. combines rotational motion with adjustable reciprocating motion. The first part of the article is devoted to the structural analysis of the mechanism. In this part, the mobility and redundant connections present in the structure of the mechanism are identified by the contour method proposed by Reshetov, where excessive angular mobility is replaced by missing linear ones. As a result, a structural diagram of the mechanism without redundant connections is created, which meets the requirements of self-aligning mechanisms. In addition, during the study it was established that the mechanism meets the requirements of the mechanism, and variable structure, since depending on the arrangement of the shafts of the mechanism, the driven shaft performs either rotational or rotational and adjustable reciprocating motion. The article ended with finding the analytical method of equations of motion of the links of the mechanism under study and constructing their graphs with the involvement of specialized software products.

Toshov J. B., Khusanov Ya., Toshov B. R., Khamraev B. D. Mechanism with continuous rotational and adjustable reciprocating motion for mechanical equipment of processing plants. MIAB. Mining Inf. Anal. Bull. 2025;(12-3):136—151. [In Russ]. DOI: 10.25018/0236_1493_2025_123_0_136.

Toshov J. B., Dr. Sci. (Eng.), Professor, http://orcid.org/0000-0003-4278-1557; Head of Department, Tashkent State Technical University, 100095, Tashkent, st. Universitetskaya 2, Uzbekistan, e-mail: javokhir.toshov@yandex.ru;
Khusanov Ya., Head of Department, «GIDRO STANKO SERVIS» LLC, 210100, Navoi, Economic Zone 3, Uzbekistan, e-mail: yangiboy.xusanov1948@mail.ru, http://orcid.org/0009-0008-3796-2840;
Toshov B. R., Cand. Sci. (Eng.), Associate Professor, http://orcid.org/0009-0006-4058-1702, Navoi State University of Mines and Technologies, 210100, Navoi, Galaba shoh street, Uzbekistan, e-mail: toshovb@mail.ru;  
Khamraev B. D., director, «GIDRO STANKO SERVIS» LLC, 210100, Navoi, Economic Zone 3, Uzbekistan, e-mail: gss-1965@inbox.ru, http://orcid.org/0009-0000-2715-1843;
Ermatov R. O., Leading designer, «GIDRO STANKO SERVIS» LLC, 210100, Navoi, Economic Zone 3, Uzbekistan, e-mail: rustam.ermatov.1097@mail.ru, http://orcid.org/0009-0003-4414-4532.

Toshov J. B., e-mail: javokhir.toshov@yandex.ru.

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