Automated method of designing anvil-blocks of impact machines based on the physical and mechanical properties of destroyed objects

An increase in the efficiency of work related to the destruction of rock by impacts, with a constant impact energy determined by the kinetic energy of the anvil-block, is achieved by taking into account the effect of the geometric parameters of the elements of the impact units of the machine. Setting the anvil-block of a geometric shape, consistent with the forces of rock resistance to impact destruction, ensures the formation of such a impact pulse in the waveguide rod, all the energy of which is spent directly on the destruction of the rock, and the energy of the reflected wave tends to zero. Analytical methods for solving the problem of accounting for the geometry of anvil-block of the impact machine often do not lead to the rapid achievement of the goal due to the emergence of complex mathematical calculations. On this basis, the article sets and solves the problem of developing a numerical algorithm for synthesizing the geometric dimensions of the anvil-block depending on the parameters of the impact pulse and creating software based on it. According to the results of the research, an example of the synthesis of the geometry of an anvil-block for the destruction of a rock of high strength — granite is given, and a new technical solution is put forward for the execution of anvil-block with a curved forming side surface equipped with a cylindrical shell of constant thickness. This approach allows not only to increase the efficiency of rock destruction by impacts, but also to reduce the negative impact on the strength of the reflected impact waves on the machine.

Timofeev E. G., Teplyakova A. V., Zhukov I. A., Golikov N. S. Automated method of designing anvil-blocks of impact machines based on the physical and mechanical properties of destroyed objects. MIAB. Mining Inf. Anal. Bull. 2022;(12-2):257—269. [In Russ]. DOI: 10.25018/0236_1493_2022_122_0_257.

Timofeev E. G.¹, graduate student, e-mail: veefomit77777@yandex.ru;
Teplyakova A. V.², student, e-mail: teplyakovanu@mail.ru;
Zhukov I. A.², Dr. Sci. (Eng.), associate professor, professor of the Department of Mechanical Engineering, http://orcid.org/0000-0001-9068-3201, e-mail: tmmiok@yandex.ru;
Golikov N. S.², Cand. Sci. (Eng.), associate professor of the Department of Mechanical Engineering, e-mail: golikovnikolay@yandex.ru;
¹ Siberian state industrial university, Novokuznetsk, 654007, Russia;
² Saint-Petersburg Mining University, 199106, Saint-Petersburg,21st line, 2, Russia.

Zhukov I. A., e-mail: tmmiok@yandex.ru.

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