The Application of Linear Motor Analysis

2014 ◽  
Vol 490-491 ◽  
pp. 983-986
Author(s):  
Yu Ping Zhao ◽  
Yu Hai Xu
Keyword(s):  
Development Process ◽  
High Efficiency ◽  
Linear Motor ◽  
Numerical Control ◽  
Industrial Safety ◽  
Emissions Reduction ◽  
Market Demand ◽  
Transportation Equipment ◽  
Drive Control ◽  
Safety Production

In this paper, through research on the development of linear motor applications both at home and abroad, find out the linear motor application in the field of technology gap, in order to promote linear motor in the domestic promotion and use. Because the linear motor has its own unique advantages, in the mechanical and electrical integration of machinery and machine tool has been widely used, but in the numerical control machine tools, electric processing equipment, mining transportation equipment in areas such as yet there is a big gap, the performance of their products, the types, application field in a large number of blank or infancy. Only seize the opportunity of market demand, the development and application of linear motor and drive control technology on the market widely promotion, is bound to be in the driver with high efficiency, energy conservation and emissions reduction, promote industrial safety production from low-end to high-end equipment the development process of rapid ascension.

Design and Development of Economic Type Mechanical Engraving Machine

2014 ◽  
Vol 644-650 ◽  
pp. 813-816
Author(s):  
Yun Xin Chen
Keyword(s):  
Control System ◽  
Design Process ◽  
Development Process ◽  
Implementation Process ◽  
Numerical Control ◽  
Algorithm Analysis ◽  
Interpolation Algorithm ◽  
Market Demand ◽  
Structure Scheme ◽  
Foreign Enterprises

This paper discusses and analyzes the development process of economic type mechanical engraving machine, including the system overall layout, structure scheme, the movement mode of numerical control system, mechanical system design process and the design process of the control system and the "mechanical engraving" the choice of interpolation algorithm, analysis and implementation process. Compared to the same function of the CNC engraving machine, has certain advantages in terms of price, to fill the gaps in the domestic and foreign enterprises, to meet the market demand.

Drying and heating of scrap metal at steelmaking: industrial safety, economics, ecology

2020 ◽  
Vol 76 (12) ◽  
pp. 1353-1258
Author(s):  
V. A. Spirin ◽  
V. E. Nikol’skii ◽  
D. V. Vokhmintsev ◽  
A. A. Moiseev ◽  
P. G. Smirnov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
High Efficiency ◽  
Steel Production ◽  
Scrap Metal ◽  
Industrial Safety ◽  
Technical Solution ◽  
Metal Charge ◽  
Basic Task ◽  
Scrap Heating ◽  
Winter Time

At steel production based on scrap metal utilization, the scrap heating before charging into a melting facility is an important way of energy efficiency increase and ecological parameters improving. In winter time scrap metal charging with ice inclusions into a metal melt can result in a considerable damage of equipment and even accidents. Therefore, scrap preliminary drying is necessary to provide industrial safety. It was shown, that in countries with warm and low-snow climate with no risk of scrap metal icing up during its transportation and storing in the open air, the basic task being solved at the scrap drying is an increase of energy efficiency of steelmaking. InRussiathe scrap metal drying first of all provides the safety of the process and next - energy saving. Existing technologies of scrap metal drying and heating considered, as well as advantages and drawbacks of technical solutions used at Russian steel plants. In winter time during scrap metal heating at conveyers (Consteel process) hot gases penetrate not effectively into its mass, the heat is not enough for evaporation of wetness in the metal charge. At scrap heating by the furnace gases, a problem of dioxines emissions elimination arises. Application of shaft heaters results in high efficiency of scrap heating. However, under conditions of Russian winter the upper scrap layers are not always heated higher 0 °С and after getting into a furnace bath the upper scrap layers cause periodical vapor explosions. The shaft heaters create optimal conditions for dioxines formation, which emit into atmosphere. It was shown, that accounting Russian economic and nature conditions, the metal charge drying and heating in modified charging buckets by the heat of burnt natural gas or other additional fuel is optimal. The proposed technical solution enables to burnt off organic impurities ecologically safely, to melt down ice, to evaporate the wetness in the scrap as well as to heat the charge as enough as the charging logistics enables it. The method was implemented at several Russian steel plants. Technical and economical indices of scrap metal drying in buckets under conditions of EAF-based shop, containing two furnaces ДСП-100, presented.

Application of High Performance Electro-Hydraulic Synchronous Servo System on NC Broaching Machine

2013 ◽  
Vol 721 ◽  
pp. 497-500
Author(s):  
Guo Jin Chen ◽  
Jing Ni ◽  
Ting Ting Liu ◽  
Ming Xu
Keyword(s):  
High Performance ◽  
Control Process ◽  
Servo System ◽  
Numerical Control ◽  
Servo Drive ◽  
Loop Control ◽  
Performance Accuracy ◽  
Drive Control ◽  
Hydraulic Servo ◽  
Output Quantity

Aiming at the lower performance, accuracy and efficiency of the existing motion control process for the traditional broaching machine, the paper studies the high-performance dual-hydraulic synchronous servo drive control technology. The synchronous electro-hydraulic servo system forms the closed loop control by the detection and feedback of the output quantity. It eliminates and restrains largely the influence of the adverse factors to obtain the high-precision synchronous driving performance. The numerical control system based on the real-time error compensation and the intelligent control to the auxiliary machinery is developed. It is used for the CNC broaching machine to make the steady-state synchronous displacement error of the double cylinders be ≤ 0.5mm.

Simulation on Linear-Motor-Driven Water Hydraulic Reciprocating Plunger Pump

2013 ◽  
Vol 842 ◽  
pp. 530-535 ◽  
Author(s):  
Zeng Meng Zhang ◽  
Yong Jun Gong ◽  
Jiao Yi Hou ◽  
Han Peng Wu
Keyword(s):  
Flow Rate ◽  
Deep Sea ◽  
High Efficiency ◽  
Control Method ◽  
Sea Water ◽  
Linear Motor ◽  
Low Flow ◽  
Flow Pulsation ◽  
Plunger Pump ◽  
Water Hydraulic

The water hydraulic reciprocating plunger pump driven by linear motor is suitable to deep sea application with high efficiency and variable control. Aiming to study the principle structure and working characteristics of the pump, two patterns of valve and piston distribution were designed. And the control method and the performance were analyzed by simulation based on the AMESim model. The results show that the pressure and flow pulsation of piston type pump are much smaller than the valve type, even though the piston type is large in scale and works at low flow rate. Compared with a valve distribution tri-linear-motor reciprocating plunger pump (VDTLMP), as the flow rate of the piston distribution double linear motor reciprocating plunger pump (PDDLMP) is decreased from 36.7 L/min to 21.2 L/min theoretically, the pressure pulsation amplitude is decreased from 46% to 2%, and the flow pulsation rate is also decreased from 0.266 to 0.007. These results contribute to the research on deep-sea water hydraulic power pack and direct drive pump with high efficiency and energy conservation.

Optimisation of a Polarisation Nephelometer

2021 ◽  
pp. 87-95
Author(s):  
Victor G. Oshlakov ◽  
Anatoly P. Shcherbakov
Keyword(s):  
Personal Computer ◽  
Position Control ◽  
Control Unit ◽  
Numerical Control ◽  
Radiation Beam ◽  
Drive Control ◽  
Control Units ◽  
Smooth Motion ◽  
Approximation Errors ◽  
Scattering Volume

An analysis of the influence caused by polarization nephelometer parameters on the scattering matrix measurement accuracy in a non-isotropic medium is presented. The approximation errors in the actual scattering volume and radiation beam by an elementary scattering volume and an elementary radiation beam are considered. A formula for calculating the nephelometer base is proposed. It is shown that requirements to an irradiation source of a polarizing nephelometer, i.e. mono-chromaticity and high radiation intensity and directivity in a wide spectral range can be satisfied by a set of high brightness LEDs with a radiating (self-luminous) small size body. A 5-wavelength monochromatic irradiation source, with an emission flux of (0.15–0.6) W required for a polarization nephelometer, is described. The design of small-sized polarizing phase control units is shown. An electronic circuit of a radiator control unit based on an AVR-Atmega 8-bit microcontroller with feedback and drive control realized by means of an incremental angular motion sensor and a software PID controller is presented. Precise and smooth motion of the radiator is ensured by standard servo-driven numerical control mathematics and the use of precision gears. The system allows both autonomous adjustment of the radiator’s reference positions and adjustment by means of commands from a personal computer. Both the computer and microcontroller programs were developed with the use of free software, making it possible to transfer the programs to Windows‑7(10), Linux and embedded Linux operating systems. Communication between the radiator’s position control system and the personal computer is realised by means of a standard noise immune USB-RS485 interface.

High efficiency driving of linear motor based on piezoelectric actuator

2011 ◽  
Vol 19 (10) ◽  
pp. 2464-2471 ◽  
Author(s):  
潘松 PAN Song ◽  
黄卫清 HUANG Wei-qing ◽  
王寅 WANG Yin ◽  
赵淳生 ZHAO Chun-sheng
Keyword(s):  
Piezoelectric Actuator ◽  
High Efficiency ◽  
Linear Motor

Study on Preparation of Microstructured Optical Membrane

2020 ◽  
Vol 861 ◽  
pp. 159-164
Author(s):  
Chang Song Zhao ◽  
Jun Yong Wu ◽  
Fan Zhong Chu ◽  
Kai Rui Zhao ◽  
Lei Yu
Keyword(s):  
High Efficiency ◽  
Uv Light ◽  
Light Transmittance ◽  
Manufacturing Cost ◽  
Market Demand ◽  
Direct Writing ◽  
Forming Process ◽  
Optical Elements ◽  
Optical Film ◽  
Warpage Deformation

Micro-structured optical film is one of the micro-optical elements and has a great market demand. This article studies the microstructured optical film formed by UV imprinting: The influence of embossing pressure on microstructure replication accuracy was explored. The larger the pressure, the better the material filling. When the pressure is 5N, the microstructure replication is complete; The relationship between the radiation intensity and warpage deformation was explored, and the decrease in the intensity of the UV light source can effectively reduce the warpage deformation; The influence of the material formula on the optical properties of the product was explored. When the oligomer content was 55%, the film had a high light transmittance. At the same time, the prepared film was subjected to an apparent inspection with good microstructure replication accuracy.Microstructured optical elements are widely used in optical fields such as semiconductors, lasers, beam shaping [1-2] and solar energy [3-5] due to their unique advantages such as small size and high performance. As a key component in many industries, it has a high market demand rate. However, the microstructure forming process is complicated, the manufacturing cost is high, and the accuracy is difficult to guarantee, which has restricted its development. With the advancement of science and technology and the increase in market demand, more and more researchers and enterprises have put their eyes on the research of preparing micro-structured optical elements.At present, the commonly used microstructures are mainly icrolens array [6-8], and the processing methods include micro-imprinting [9-10], etching [11], electron beam direct writing, and micro-injection [12], etc. This article studies the UV-curing embossing process in micro-embossing. This processing method has the advantages of fast molding, high efficiency, and environmental protection. And this process is conducive to mass production and has a broad market application prospect.In this paper, the forming process and material formulation of microstructured optical film prepared by light-cured micro-imprinting were investigated, and the microstructure morphology of the preparation was analyzed apparently.

The Development Process and Prospects of Mine Surveying in China

2011 ◽  
Vol 71-78 ◽  
pp. 1311-1317 ◽  
Author(s):  
Gang Wang ◽  
Guang Li Guo ◽  
Jian Feng Zha ◽  
Bing Fang Liu
Keyword(s):  
Remote Sensing ◽  
Development Process ◽  
Information Science ◽  
Rapid Development ◽  
Geographical Information ◽  
Mine Safety ◽  
Transit Times ◽  
Basic Work ◽  
Safety Production ◽  
Mine Surveying

Mine surveying is an important part and infrastructure protection of mine production and mine construction, and it is also very important basic work of coal mine safety production. This article summarized the development process of China's mine surveying for 60 years, the development process of China's mine surveying was from Transit Times which angling and distancing separately to Electronic Total Time which angling and distancing combo. Today, China's mine surveying has developed into an information science which combines with measurement and optoelectronic technology, computer technology, global positioning system (GPS), geographical information system (GIS) , remote sensing (RS) , D-InSAR and Unmanned Aerial Vehicle Remote Sensing with the rapid development of science and technology. This paper also analyzed the development status, opportunities and challenges-digital of China's mine surveying , and pointed out its development direction and what measures should be taken.

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