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introduction： Study the economy mathematically﹑Civil affairs, national defense and other departments rationally deploy manpower under the constraints of internal and external environment﹑Material resources﹑Financial and other resources﹐The technical science that enables the efficient operation of real systems。It can be used to predict trends﹑Develop action plans or identify feasible options。Operations research is called in the UKoperational research﹐Known in the United States asoperations research﹐The English abbreviation isOR。Chinese department of Medicine
2015-04-11 Reading quantity 2893
introduction：one、 The operator must pass the examination，And hold the equipment《Equipment operation certificate》You can operate the device。 two、 Do it before work： 1、Read the shift records carefully，Know what happened in the last shift。 2、Check equipment and work area clean、Wipe clean；Equipment bed、Work surface、There shall be no obstacles on the guide rail and other main sliding surfaces、Impurities and new pull、r、Be injured by a collision。If the above situation must be cleared，And wipe clean equipment；New pull appears、r、Injury should be asked equipment personnel or team leader to check together，And keep records。 3、Check each operating mechanism
2015-04-11 Reading quantity 2778
introduction：Turning is one of the most basic machining methods in cutting，It uses the rotating motion of the workpiece and the movement of the tool to process the workpiece on the lathe，Therefore, turning is the most widely used machining method in machining，Lathes account for the total number of cutting machine tools40﹪around。 1.Classification of CNC lathes ⑴. According to the function of the numerical control system： ① Full function CNC lathe；② Economical CNC lathe ⑵．According to the configuration of the spindle： ① Bedroom CNC lathe； ② Vertical CNC lathe ⑶．According to the numerical control system
2015-04-11 Reading quantity 1444
introduction：1、bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The cleaning of Remove lower bearing for repair，First record the bearing appearance，Verify the residual amount of lubricant，After taking a sample of the lubricant for inspection，Bearing cleaning。As a cleaning agent，Regular gasoline、kerosene。 Cleaning of removed bearings，Divided into coarse cleaning and fine
2015-04-11 Reading quantity 1408
introduction： INAbearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]After installation，To check that the installation is correct，An operational check is required。Small machines can be turned by hand，To make sure the rotation is smooth。Check items for foreign bodies、scar、Poor operation due to indentation，Due to poor installation
2015-04-11 Reading quantity 1549
introduction：In large quantitiesSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]In production，General use template、Sample piece、Block and mold adjustment process system；In single piece small batch production，The adjustment is usually made by using the scale on the machine tool or by using the measuring block。The content of the adjustment work also depends on the workpiece
2015-04-11 Reading quantity 1459
introduction：inUGIn the process of development，CAMHas been the most reliable processor、Job partner。It not only provides reliable partners with accurate tool paths，Let even moreNCThe programmer is free to design the most efficient processing program in his mind。Last yearCIMdataAccording to the survey report，EDSUGBe regarded as ownedCAMSoftware vendor，The strongest competitor。 UGCAMIt has the following characteristics： Provide reliability、Precise tool path。 It can be processed directly on surfaces and solids。 Good user interface，Allow users to work on the need，Customize the user
2015-04-11 Reading quantity 2889
introduction：Bearings for wind turbines[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]It can be roughly divided into three categories，namely：Yaw bearing、Variable pitch bearing、Drive system bearing(Spindle and transmission bearings)。The yaw bearing is installed at the connection between the tower and the cockpit，Variable pitch bearings are installed at the root of each blade and the hub connection。For every wind turbine
2015-04-11 Reading quantity 1533
introduction：Mixing of two incompatible oils，Never mix incompatible oils and fats。Usually the consistency is soft，Finally, it is easy to lose grease and cause damage，If you dont know youFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]What kind of grease was used，The original grease must be removed first，A grease is then added for lubrication。 We often encounter such situations in the process of using linear bearings，How did these situations come about，How do we solve it when its formed
2015-04-11 Reading quantity 1452
introduction： While the institution is operating，Mount Mosaic solid lubricated bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The parts are allowed to have a certain temperature，When touching the body shell with the hand，It should be normal not to feel hot，Otherwise, the bearing temperature is too high。 The reasons for the high bearing temperature are：Lubricating oil quality does not meet the requirements or deterioration，embellish
2015-04-11 Reading quantity 1454
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