Analysis of the Relationship Between the Transfer of the Mechanism of the Multi-operating Machine

Bahadirov, Gayrat; Rakhimov, F. R.

doi:10.1007/978-3-030-85233-7_25

Cited by 3 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are publications devoted to the development and improvement of leather machines. In [7], the results of studies on determining the ratio of forces in the process of feeding a semifinished leather product to the working area of a multioperational machine by a conveying device are presented, and in [8] a solution to the problems of ensuring the stable motion of the feeding mechanism of multi-operation machines is proposed. These studies were carried out for manual work, where the issues of process control and the stability of the movement of the roll pair, depending on the uneven thickness of the processed material, were not considered.…”

Section: Introductionmentioning

confidence: 99%

Controllability and stability capacity of a roll pair motion research

Khusanov¹

2022

Eureka: PE

View full text Add to dashboard Cite

The process of deriving the equation of the perturbed motion of a roll pair during the processing of leather material is discussed in the article, taking into account the influence of dynamic factors. It is shown that one of the reasons for the unstable stress state on the contact surfaces in the roller mechanism are dynamic factors arising from inaccuracies in the manufacture of its individual parts, assembly defects, and the occurrence of an oscillatory process in the roller mechanism, as well as due to the non-uniform thickness of the processed material at its gripping during starting and stopping the machine. Methods for determining optimal controls are shown; they provide asymptotic stability of the unperturbed motion of a roll pair and the torque applied to the upper roll as a function of generalized coordinates.It is shown that the width of the contact strip of the clamp, which depends on the radii of the rolls and the hardness of the coatings, has a significant effect on the efficiency of the rolls. The larger the shaft radius, the lower the actual pressure per unit contact area. It is shown that the squeezing efficiency increases with the improvement of the conditions for the removal of the squeezable liquid from the rolls (with their horizontal arrangement), with an increase in its temperature and a decrease in viscosity. Efficiency decreases with increasing material speed and thickness. It is shown that the width of the contact strip of the clamp, which depends on the radii of the shafts and the stiffness of the coatings, has a significant impact on the efficiency of the shafts. The larger the shaft radius, the lower the actual pressure per unit contact area

show abstract

Section: Introductionmentioning

confidence: 99%