Papers by Keyword: Pneumatic

Abstract: The technology of industrial machines continues to develop rapidly, especially in the main drive system such as the pneumatic system which is widely used in industrial machines. This must also be balanced with the ability of students to solve their problems. The pneumatic drive system is basically a device that converts air pressure into mechanical work that helps the operating process of industrial machines. The purpose of this study is to design machine components, create a pneumatic work system simulation tool, create a pneumatic system simulation tool to test the tool. The creation of this Pneumatic System Simulation tool is one effective way to help students understand and master the work system and repairs on industrial machines. There are three stages in this research, namely literature study, design and planning, and tool making. The test results show that the pneumatic system simulation tool can work properly and there are no leaks in the valve and air duct. The test is done by applying air pressure from the compressor. The pressure is applied gradually starting from 5 bar and increasing until it reaches 7 (bar).

Abstract: For the newly proposed pneumohydraulic drive of workpiece return movement it is researched relations, analysis was carried out and recommendations of selecting values of the initial pressure in the pneumatic chamber, ensuring a rational ratio between the periods of acceleration and deceleration were obtained. A mathematical model and program were created for the calculation of the law of motion of the brake rod with floating piston device using the system variable throttling the flow of the working fluid along the movement in the brake chamber. Based on the developed model the numerical analysis is made to assess the impact of the inner surface of the brake axle box on the final rate of the brake piston, as well as the effect of the location and change in the area of additional throttling apertures therein on the trend values of the maximum braking acceleration of moving masses. An algorithm of determining the constants and variables control law of motion, minimizing the maximum values of dynamic loads per cycle movement of the workpiece is obtained. It is shown that the proposed framework of the rod system of the workpiece return movement in the working cage with a floating piston ensures reduce the moving masses and increases the rigidity of the movable rod. The calculated relations for the definition of effort mobile carriage prop, providing gapless its support with mechanism of feed limit, are obtained.

Abstract: Drain cleaning is often considered as a simple task, but it might not be so always. Many industries function smoothly by constantly dumping the waste, toxic chemicals, biodegradable products frequently in the drains, which results in clogging of drains thus preventing the water flow from the pipes. Around 800 men die because of drain cleaning every year in India. Maintaining, cleaning and resolving the issues of drainage systems have been a severe issue in the surrounding environment where, labors are used without any protective measures. Increase in the laborers deaths has been a major concern in cleaning the drainage blockages. Moreover, identifying the blockage within the drainage system is a time consuming and TDS task. Also, the machines available are very expensive. Thus, a system has to be introduced where humans are not insisted for cleaning the drainage blockages and its maintenance. In view of above, present project is aimed at development of a slender and powerful system to inspect the pipe and disintegrate it to clear the blockage in the pipe.

Abstract: In the view of the traditional purely mechanical regulator’s disadvantage, this paper proposed a new type intelligent gas pressure regulator. Its advantage is the ability to achieve accurate output pressure, remote control and centralized management. It can resist the disturbance of inlet pressure and flow rate changes. In this paper, we introduce the regulator’s structure, working principle, mathematics model and simulation model. According to the simulation result, it can basically meet the working demand.

Abstract: The characterization, modeling and the simulation of the mechanical processes represent components of the analysis process of the systems, representing the tools that allows the analysis, the detection and easier identification of the problems and the solutions. The action of the the mechanical systems with "pneumatic engines" shall be detailed in the article, the characteristics and the evolution of these engines as they are integrated in the various systems. The simulation of the mechanical systems use complex programs, specialized, programs that consider a lot of factors to determine the most precisely behavior and the evolution of the analyzed system. The results of the simulation and the prospection of the specific documentation shall be specified in the article, as well as identifying these "pneumatic engines" purposes and their limits.

Abstract: In this work, the pneumatic transport of coarse grain particles (alumina) through a horizontal pipe is considered. Corresponding flow of the mixture is assumed as a two-phase one-dimensional flow. The present work considers a air mass balance model. A MATLAB program is developed to update the governing equations. Since a good agreement is observed between the present prediction and the result available in the literature, the model is used for further investigation. The variation of pressure drop, velocity and mass flow rate along the length of pipe for both low and high volume flow rate is predicted. It is observed that the pneumatic transport of the alumina particles is permitted up to a limiting length of the pipe due to a huge pressure drop in the pipe at very high velocity. Corresponding limiting length of the pipe with different mixture velocities is predicted.

Abstract: Control technology of pneumatic servo spot welding gun is studied, using the proportional flow valve as the control device. The mathematical model of the proportional valve-controlled cylinder system is established, and the experimental studies of position and force control for pneumatic servo spot welding gun have been done. The experimental results show that the servo gun opens smoothly and fast, the impact of electrode is greatly reduced, and the electrode force is controlled precisely and kept steadily, the quick changing of the electrode force is achieved in the welding process.

Abstract: This paper designs an intelligent automatic mounting machine . For the purpose of reducing the steps of remodeling of excess asphalt and saving asphalt concrete . Before paving mixing , it laid two rows of fixed and adjustable thickness of the side-mode and mold clamp on both sides of the road . The results show that it avoids the process of removing the extra asphalt, saving raw materials, improving the efficiency of the paving . Mainly describe control system , especially pneumatic system.

Abstract: This paper presents the design and fabrication of a Window Climbing Robot (WCR), which is a small-scale or miniature robot that is capable of climbing the windows or glass in a vertical motion. While operating in the vertical motion or climbing, the WCR has the capabilities in performing tasks such as cleaning, inspection, surveillance and maintenance. The WCR can perform these duties without the need of actual human intervention. The robot is able to operate autonomously with the aid of sensors. The robot can be placed onto the surfaces such as glass using the pneumatic-system with suction-power provided by eight suction-cups. The double-belting gear driving mechanism moving the robot is shown and explained. The pneumatic-based suction system is illustrated and the fabricated prototype of the robot is also shown in this paper.

Abstract: This paper presents the construction scheme of the monitoring and control device for pneumatic rock drilling machine. The system composition，design and functions of the device are described. The gas pressure control, data acquisition, data analysis and storage automation have been achieved though the electric proportional technology, PLC technology and Forcecontrol 7.0 configuration software. The device is characterized by remote monitoring and control functions, possesses a favorable man-machine interface system.