風(fēng)送式遠程遙控霧炮機設(shè)計【含6張CAD圖帶開題報告-獨家】.zip,含6張CAD圖帶開題報告-獨家,風(fēng)送式,遠程,遙控,霧炮機,設(shè)計,CAD,開題,報告,獨家 目 錄 1 英文文獻翻譯………………………………………………………………2 1.1 Ventilator…………………………………………………………2 1.2 中文翻譯………………………………………………………16 2 專業(yè)閱讀書目………………………………………………………22 2.1機械原理…………………………………………………………………22 2.2機械設(shè)計…………………………………………………………………22 2.3現(xiàn)代工程圖學(xué)……………………………………………………………23 2.4機電傳動控制……………………………………………………………24 2.5 材料力學(xué)…………………………………………………………………24 2.6 互換性與技術(shù)測量………………………………………………………25 2.7理論力學(xué)…………………………………………………………………25 2.8 機械設(shè)計課程設(shè)計………………………………………………………26 2.9機械制造技術(shù)……………………………………………………………26 2.10 機械制造基礎(chǔ)…………………………………………………………27 2 1 英文文獻翻譯 1.1 Ventilator Ventilator is a kind of driven fluid machinery, which relies on input mechanical energy to increase gas pressure and send gas to side by side. The exhaust pressure is lower than 1.5 x 10^4 PPA. Modern fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation, exhaust and cooling, ventilation and ventilation of boilers and industrial furnaces, cooling and ventilation of air conditioning equipment and household appliances, drying and selection of grain, and inflating and propulsion of wind tunnel and hovercraft Wait. Work principle editors Square pipe ventilator Square pipe ventilator The working principle of the ventilator is basically the same as that of the turbine compressor. Only because the gas flow velocity is low and the pressure changes little, it is generally not necessary to consider the change of the gas specific capacity, that is, the gas is treated as an incompressible fluid. The relationship between the fan and the fan: the fan is a habitual abbreviation for the gas compression and gas conveying machinery in our country. Usually, the fan includes the ventilator, the blower, the compressor and the roots blower, but does not include the volumetric blower and compressor such as the piston compressor. Fan is a product type of fan, but people usually call fan fan as fan. Fan is another name for fan. Performance editing The performance parameters of fan are mainly flow, pressure, power, efficiency and speed. In addition, noise and vibration are also the main technical indicators of fans. Flow is also known as air volume, expressed in the volume of gas flowing through the fan per unit time. Pressure, also known as wind pressure, refers to the value of pressure rising in the ventilator, including static pressure, dynamic pressure and total pressure. The total pressure is equal to the difference between the outlet section of the ventilator and the total pressure on the inlet section, and the static pressure is equal to the difference between the outlet section of the ventilator and the static pressure on the inlet section, and the dynamic pressure is the dynamic pressure of the air flow velocity on the outlet section of the ventilator. On the same section, the total pressure of the flow is equal to the sum of static pressure and dynamic pressure. There is a functional relationship between parameters such as flow rate, wind pressure, power and efficiency. When one parameter changes, the other variables also change. The relationship between them is plotted as a curve, called the performance curve. The shape of the performance curve is related to the type of the fan. Changing the air volume and wind pressure of the ventilator to meet the requirements of changing the working conditions is called performance adjustment. There are 5 commonly used adjustment methods. (1) install throttle valve or throttle control flow in intake pipe or exhaust pipe. This method is the simplest, but the adjustment effect is poor. 2. Install the diverter before impeller inlet to change the direction of air flow. Change the speed of the ventilator. This method has the best economic performance, but it is more complicated. The impeller strength and motor load condition should be considered when changing the rotational speed. 4. Change the width of the impeller. When the working condition is changed, the efficiency of the ventilator varies little, but it is rather complicated. Change the moving blade installation angle. Adopting this method, the equipment is the most expensive and the maintenance is the most complex, but the flow range is large and the economy is good. Generally it is used for large axial fan. Axial flow fan When the axial flow fan works, the turbine drives the impeller to rotate in the cylindrical shell, the gas is entered from the collector, and the energy is obtained through the impeller to increase the pressure and speed, and then discharge along the axial direction. The axial fan has three types of vertical, horizontal and inclined type. The diameter of the small impeller is only about 100 millimeters, and the large one can reach more than 20 meters. Axial flow fan A small low pressure axial fan is composed of an impeller, a shell and a current collector, which is usually installed on the wall or ceiling of the building, and the large high pressure axial fan is composed of a flow collector, a impeller, a streamline body, a casing, a diffuser and a transmission component. The blade is evenly arranged on the wheel hub, and the number is generally 2~24. The more the blade, the higher the wind pressure; the installation angle of the blade is generally 10 to 45 degrees; the larger the installation angle, the greater the air volume and the wind pressure. The main parts of axial-flow fan are mostly welded or riveted by steel plates. Fault and maintenance editor Common problem The wear resistance and wear resistance of the fan: because a large number of ventilator is used in the ventilation and exhaust of the factory, mine, tunnel and so on, the impeller and the casing of the fan have different degrees of wear and wear, which directly affect the production in some places, so the wear resistance of the fan is very high. Commonly used wear-resistant treatment is surfacing, spraying, spray welding, coating polymer wear resistant materials, etc., which can prolong the service life of ventilators. In recent years, China has introduced an effective method of abrasion resistance from abroad, which is to paste or inlay wear-resistant ceramics on the surface of the impeller or worm shell. Because of the good wear resistance of the wear-resistant ceramic, the wear resistance of the machine can be greatly improved. And the fan with a wearable ceramic sheet is easy to maintain, so it has been widely applied in related industries in China. Solution Fan wear fault is mostly used polymer wear-resistant material, which is mainly used as polymer composite material, mainly used to repair the wear of ventilator transmission parts. Because the material has stronger adhesion and compressive strength, the equipment can not be disassembled, and the machine is free to repair. It is more advantageous than the traditional method and avoids the surfacing welding. The influence of thermal stress and the high requirements of spraying technology are high. At the same time, because the polymer composites have metal deficiency, it can absorb the shock vibration of the ventilator well, avoid two times wear and tear, and matured in the application of the wear fault of the fan transmission part. At o m i z at ion effect The atom i z at i n effect is a common feature of 3D. The smoke, explosion flame and white clouds that are seen in the game are the result of atom i z a ti on. Its function is to create the effect of a designated area enveloped in a smog of smoke, which ensures the authenticity of the vision and reduces the rendering workload of the 3D graphics. Principle editing of ultrasonic atomization There are two theoretical explanations for ultrasonic nebulization: micro shock theory and surface tension wave theory. The micro shock theory holds that the micro shock generated by cavitation in the liquid medium is the cause of the phenomenon of ultrasonic atomization. The energy released by the cavitation bubble is transmitted in the form of heat and light energy in the form of the breakdown, and a part of the air bubbles radiate out in the form of micro shock waves. When the energy of the micro shock wave reaches a certain value, it will come to a certain value. The phenomenon of ultrasonic atomization is caused. The theory of surface tension holds that the atomization effect is caused by the instability of liquid surface waves. Specifically, when the ultrasonic wave is propagated on the surface of the liquid, the surface tension wave is formed. The particle of the liquid medium makes periodic motion in the direction perpendicular to the direction of propagation. The amplitude of the particle increases with the enhancement of the sound intensity. When the amplitude reaches the critical value, the particle is separated from the wave peak to form the droplets. This theory holds that the droplets are produced. Born at the crest of the surface tension wave, and the size of the droplet is proportional to the wave. The practice shows that some physical and chemical properties of the liquid medium, such as surface tension, density, viscosity, vapor pressure, etc., will also affect the atomization effect and the particle size of the gas solution. Experimental study on atomization characteristics The measurement of spray is mainly divided into the measurement of the macroscopic characteristics of spray and the measurement of the microscopic characteristics of spray. The macro parameters of nozzle spray characteristics include atomization cone angle, jet penetration length, distance of liquid film breakage, and droplet distribution in spray field, and micro characteristic parameters include droplet size, position in flow field, velocity, temperature and particle size distribution of droplets in flow field. In addition, the air reflux in the outlet reflux area, the concentration and distribution of the fuel vapor, the deformation, splitting, polymerization and collision of the liquid film and droplet are also studied and analyzed. The early measurement of spray field of nozzle mainly includes shadow method, schlieren method, settlement method, freezing method and contact method. With further understanding of atomization mechanism, these methods can not meet the needs of research. In order to make a more comprehensive and in-depth study of nozzle spray, it is necessary to use advanced measurement methods and techniques. In 1970s, the new measurement technology, represented by optical technology, has developed rapidly in 1970s. It has a profound influence on the measurement of atomizing process of the nozzle. It can dynamically test the spray process of the nozzle and greatly promote the atomization of the nozzle. The study of characteristics and atomization mechanism. The main optical measurement methods used at present are laser scattering, laser holography, phase Doppler particle velocity measurement (PDPA) laser induced fluorescence (LIF), particle image velocimetry (PTV) and so on. The above test methods are non-contact measurement, and do not interfere with the measurement of the flow field, which is the main measurement method for spray research in the future. The progress of non-contact testing technology is benefiting from the rapid development of modern computer technology. The spray field two-phase flow testing technology relies on the integrated applications of computer automation and intelligent technology such as high-speed data acquisition, parallel processing, real-time control and so on. It is critical to the future spray research. With the rapid development of optical diagnosis technology and the further in-depth understanding of spray characteristics and atomization mechanism of the nozzle, more and more attention has been paid to the research based on optical diagnostic technology. The optical diagnosis method is convenient, accurate and does not interfere with the flow field, and the rapid development and application have been achieved at present. An electric motor (Motor) is a device that converts electrical energy into mechanical energy. It uses the electrified coil (that is, the stator winding) to produce the rotating magnetic field and acts on the rotor (such as the cage cage closed aluminum frame) to form the magnetoelectric rotating torque. The motor is divided into DC motor and AC motor according to the difference of power supply. Most of the motors in the power system are AC motors, which can be synchronous motor or asynchronous motor (the speed of the magnetic field of the motor is not at the same speed with the rotating speed of the rotor). The motor is mainly composed of stator and rotor. The direction of the force movement of the electrified wire in the magnetic field is related to the direction of the current and the direction of the magnetic induction line (magnetic field direction). The principle of the motor is the effect of the magnetic field on the force of the current, so that the motor rotates. Structure classification editor Basic structure The structure of three phase asynchronous motor is composed of stator, rotor and other accessories. Sta tor (stationary part) Sta tor core Function: a part of the magnetic circuit of an electric motor and a stator winding is placed thereon. Structure: the stator core is usually made of silicon steel sheet with insulating layer on 0.35~0.5 millimeter thick surface, and the inner circle of the core is evenly distributed in the inner circle of the core, so that the stator winding is embedded. The stator core groove type has the following several kinds: Half closed slot: motor efficiency and power factor are higher, but winding winding and insulation are more difficult. It is generally used in small low voltage motor. Semi open slot: can be embedded into the winding, generally used in large and medium-sized low-voltage motor. The so-called winding, that is, winding, can be insulated in advance and then put into the tank. Open slot: it is used to insert the forming winding, and the insulation method is convenient. It is mainly used in high voltage motor. Stator windings Function: it is the electric circuit part of the electric motor, and enters the three-phase alternating current to produce the revolving magnetic field. Structure: three structures with 120 degrees of space and symmetrical arrangement are connected completely with the same winding, and the coils of these windings are embedded in the stator slots according to certain rules. The main insulation of the stator windings is the following three kinds: (the reliable insulation between the conductive parts and the core of the winding and the reliable insulation between the winding itself). I. insulation to the ground: insulation between the stator winding and the stator core. Phase to phase insulation: insulation between stator windings. Interturn insulation: insulation between turns of each stator winding. The wiring in the electric motor junction box: There is a wiring board in the motor junction box, the six line heads of the three-phase winding are arranged up and down two rows, and the number of three connecting piles from left to right is numbered 1 (U1), 2 (V1), 3 (W1), and the number of three wiring piles from left to right is numbered 6 (W2), 4 (U2), 5 (V2), and the three phase winding is connected to the three phase winding. A star connection or a triangular connection. All manufacturing and maintenance shall be arranged according to this serial Function: fixed stator core and front and rear cover to support rotor, and play the role of protection, heat dissipation and so on. Structure: the frame is usually cast iron, the large asynchronous motor base is usually welded by steel plate, and the base of the micro motor is cast aluminum parts. There is a heat sink outside the seat of the closed motor to increase the heat dissipation area. The end of the protective motor's seat is covered with a ventilation hole, so that the air inside and outside the motor can be convective directly to help heat the heat. (two) rotor (rotating part) 1, the rotor core of a three-phase asynchronous motor: The function is as a part of the magnetic circuit of the motor and the rotor winding in the core slot. Structure: the material used as the stator is made up of 0.5 millimeter thick silicon steel sheet, and the silicon steel sheet has a uniformly distributed hole in the outer circle of the silicon steel sheet, which is used to place the rotor winding. Usually the stator core is used to punch the backward silicon steel inner circle to punch the rotor core. The rotor core of a small asynchronous motor is directly mounted on the rotating shaft, and the rotor core of large and medium asynchronous motors (the diameter of the rotor is more than 300~400 mm) is pressed on the rotating shaft with the rotor support. 2, the rotor winding of three phase asynchronous motor Function: cutting the stator rotating magnetic field to generate induction electromotive force and current, and form electromagnetic torque to turn the motor. Structure: it is divided into squirrel cage rotor and wound rotor. Squirrel cage rotor: the rotor winding consists of a plurality of guide bars inserted into the rotor slot and two loop ends. If the rotor core is removed, the whole winding shape is like a rat cage, so it is called cage winding. The small cage motor is made of cast aluminum rotor windings, which is welded by copper strip and copper end ring for motors above 100KW. 2. Winding rotor: the winding rotor winding is similar to the stator winding. It is also a symmetrical three phase winding. It is usually connected to a star. The three outlines are connected to the three collector rings of the rotating shaft, and then the electric brush is connected with the external circuit. Characteristics: the structure is more complex, so the application of wound rotor motor is not so wide as that of squirrel cage motor. In order to improve the starting and braking performance and speed regulating performance of the asynchronous motor, the equipment such as the crane, elevator, air compressor and so on is used in a certain range. (three) other accessories of three phase asynchronous motor 1, end cover: support. 2, bearing: connecting the rotating part and the immovable part. 3, bearing end cover: protect the bearing. 4, fan: cooling motor. [1] Product classification 1. according to the working power supply classification, according to the difference of the working power of the motor, it can be divided into DC motor and AC motor. The AC motor is also divided into single-phase motor and three-phase motor. 2. according to the structure and working principle, the motor can be divided into DC motor, asynchronous motor and synchronous motor according to its structure and working principle. Synchronous motors can also be divided into permanent magnet synchronous motor, reluctance synchronous motor and hysteresis synchronous motor. Asynchronous motors can be divided into induction motors and commutator motors. Induction motors are divided into three phase asynchronous motors and so on. Different step motor and pole asynchronous motor and so on. AC commutator motor is divided into single-phase series motor, AC and DC motor and repulsion motor. 3. according to starting and running mode, the motor can be divided into capacitor starting single-phase asynchronous motor, capacitor running single-phase asynchronous motor, capacitor starting operation single-phase asynchronous motor and phase separation single-phase asynchronous motor according to starting and running mode. 4. according to use, the motor can be divided into driving motor and control motor. The motor is also divided into electric tools (including drilling, polishing, polishing, slotting, cutting, reaming and other tools) using motor and electrical appliances (including washing machine, electric fan, refrigerator, air conditioner, recorder, VCR, vi