Одной из важнейшей задачей машиностроения является повышение производительности кривошипных прессов. Для увеличения производительности кривошипных прессов необходимо увеличение рабочих скоростей привода пресса. В результате этого, динамические нагрузки в узлах и механизмах пресса резко возрастают. Исследование динамики кривошипных прессов, в настоящее время, является актуальной задачей и требует составления динамической модели. Выбор динамической модели зависит от достоверности исходной информации о параметрах системы и других факторов. Для составления динамической модели требуются предварительные расчеты, а иногда и экспериментальные исследования. Для выбора удачной динамической модели машины, необходимо иметь инженерную интуицию, информацию о предыдущих динамических расчетах, данные экспериментальных исследований и эксплуатации машины. В работе рассмотрено моделирование динамики кривошипного пресса на программном комплексе SimulationX. Моделирование динамики кривошипного пресса проводилось с электродвигателем мощностью 0.5 квт, номинальной частотой вращения 450 об/мин и номинальной нагрузкой на ползуна 4000 Н. В результате установлено, что в момент включения муфты динамические нагрузки в узлах кривошипного пресса резко возрастают и значения момента на муфте достигает до 120 Н*м Машина жасау саласының маңызды мәселесiнiң бiрi қисық қосиiндi баспақтардың өнiмдiлiгiнарттыру болып саналады. Қисық қосиiндi баспақтардың өнiмдiлiгiн арттыру үшiнбаспақ жетегiнiң жұмыс жылдамдығын көбейту қажет. Осының нәтижесiнде, түйiндердегiжәне баспақ механизмдерiндегi динамикалық жүктемелер күрт өседi. Қазiргi уақыттақисық қосиiндi баспақтардың динамикасын зерттеу өзектi мәселе болып табылады жәнединамикалық модель құрастыруды талап етедi. Динамикалық моделдi таңдауда жүйепараметрлерi және басқа факторлар туралы алғашқы ақпараттардың нақтылығына сүйенгендұрыс. Динамикалық моделдi құрастыру үшiн алдын-ала есептеулер, ал кей уақыттаэксперименттiк зерттеулер де қажет болады. Машинаның сәттi динамикалық моделiнтаңдау үшiн, инженерлiк интуиция, бұрынғы динамикалық есептеулер жөнiнде ақпараттар,эксперименттiк зерттеулер мен машинаны қолданудағы мәлiметтер болуы керек. Жұмыстақисық қосиiндi баспақтың динамикасын SimulationX бағдарламалық комплексiнде моделдеуқарастырылған. Қисық иiндi баспақтын динамикасын модельдеу қуаты 0,5 кВт, номиналдықайналыс жиiлiгi 450 бiр минуттағы айналым және сырғаққа түсетiн 4000 Н номиналдықжүксалмағы бар электроқозғалтқышпен жүргiзiлдi. Одной из важнейшей задачей машиностроения является повышение производительностикривошипных прессов. Для увеличения производительности кривошипных прессовнеобходимо увеличение рабочих скоростей привода пресса. В результате этого, динамическиенагрузки в узлах и механизмах пресса резко возрастают. Исследование динамикикривошипных прессов, в настоящее время, является актуальной задачей и требуетсоставления динамической модели. Выбор динамической модели зависит от достоверностиисходной информации о параметрах системы и других факторов. Для составлениядинамической модели требуются предварительные расчеты, а иногда и экспериментальныеисследования. Для выбора удачной динамической модели машины, необходимо иметьинженерную интуицию, информацию о предыдущих...

Most of the arm lifts used in today’s industry are designed and manufactured based on the scissor mechanism. Such schemes have one drawback: when the mechanism is raised, their connection points with the base and the movable platform narrow, which leads to a let-down in its stability. This article proposes a new scheme for the lifting device, which eliminates the above disadvantage of scissor schemes. In the scheme developed by the authors, the joints connecting the mechanism to the moving platform and the base are fixed, which means that the distance between the connection points does not change, leading to its stable operation. The mechanism consists of one group of links of the second class and two groups of links of the fourth class. The article focuses on the stability of an automotive lift’s design when moving with a load. The article presents the results of a kinematic and kinetostatic analysis, a study of the stability of the lift and the results of studies of an experimental sample of the developed lift. The methods presented in this article allow for the design of automotive lifts with new lever mechanisms, as demonstrated by computer modeling and experiments.

This article considers the oscillation of a solid body on kinematic foundations, the main elements of which are rolling bearers bounded by high-order surfaces of rotation at horizontal displacement of the foundation. Equations of motion of the vibro-protected body have been obtained. It is ascertained that the obtained equations of motion are highly nonlinear differential equations. Stationary and transitional modes of the oscillatory process of the system have been investigated. It is determined that several stationary regimes of the oscillatory process exist. Equations of motion have been investigated also by quantitative methods. In this paper the cumulative curves in the phase plane are plotted, a qualitative analysis for singular points and a study of them for stability are performed. In the Hayashi plane a cumulative curve of a body protected against vibration forms a closed path which does not tend to the stability of a singular point. This means that the vibration amplitude of a body protected against vibration does not remain constant in a steady state, but changes periodically.

This paper proposes a robot designed for automated routine or emergency disinfection in closed premises. The robot is related to the combined type robots. The robot consists of two functional parts: a universal mobile platform (lower part) and a disinfector (upper part), which, if necessary, can be freely moved by personnel on 4 wheels. In the initial position, the upper part of the disinfection robot is at the charging station. The mobile robot drives up to the disinfector, «hooks» it (puts it on itself) and moves along the planned route. The upper part of the disinfector will have its own independent intelligent system, separate from the mobile robot, which, when a person is recognized, stops liquid disinfection: in this case, the UV lamps turn through 180°, the cylindrical body closes and ventilation of the disinfected air from the enclosed space is turned on. In addition, liquid disinfection is only enabled when detecting beds, tables and chairs. With the spray nozzles located at a height of 400 mm, the disinfector can carry out a simultaneous combined treatment of rooms with equipment and furniture, including high-quality processing of the lower surfaces of tables, chairs and beds. To improve the functional characteristics of robotic disinfectors and to simplify their design, a multifunctional robotic disinfector has been proposed. It was found that the result is achieved by the fact that in a multifunctional disinfection robot containing a mobile cart with an autonomous positioning and navigation system, a disinfection platform with a disinfection liquid spraying system and UV lamps with reflectors installed on it, the disinfection platform will have its own autonomous control and power systems.

The industrial development of cities is the main cause of the destruction and degradation of natural resources around the world. Urbanization negatively affects the species composition of plants, the atmosphere and soil cover of areas of populated areas of large cities of the World. Tree plantations are the main mechanism for stabilizing the ecological situation in large cities and arid territories of the countries of the World. In this regard, in order to obtain a large number of genetically identical plants using their micropropagation, it is necessary to automate the main stages of this technological process. The result of the study is the creation of an adaptive phalanx gripper of a robotic complex for automating the technological process of handling operations. That will have a positive effect on solving the urgent problem of planting greenery in large cities and areas of arid territories not only in the Republic of Kazakhstan, but also in other countries of the World and represents a fundamentally new approach to solving the environmental problems of the Earth. The article substantiates various options for structural-kinematic schemes of the robot gripper, taking into account the stochastic conditions of its interaction with the overloaded object. Mathematical methods have been created for the selection and justification of the geometric, structural-kinematic and dynamic parameters of grippers for overloading plant microshoots and their computer 3D models. Software has been developed for modeling the functioning of a remotely controlled physical prototype of a mobile robot with an adaptive gripper for reloading microshoots from a transport tank to a cargo tank.