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introduction： summarize： The main body of the rotary dryer is a slightly inclined cylinder that can be rotated。Add wet material from upper left end，Through the inside of the cylinder，It is dried by effective contact with hot air or heated wall through the cylinder，The dried product is collected from the lower right end。In the drying process，The material is aided by the slow rotation of the cylinder，Moving from the higher end to the lower end under the action of gravity。The heat carrier used in the drying process is generally hot air、
2015-01-05 Reading quantity 2804
introduction：1、NSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]Vibration of NSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in191
2015-01-05 Reading quantity 1471
introduction： 1．Rolling 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。]Load analysis of The deep groove ball bearing is taken as an example。As shown in the figure12-19As indicated，The bearing is subject to radial loadFrApplied time，The load on each rolling element is different，The rolling element in the lowest position receives the greatest load。From theoretical analysis，by
2015-01-05 Reading quantity 1560
introduction：kekong qifen Controlled atmosphere controlled atmosphere A gas whose composition can be controlled when heating a metal in order to protect the metal surface and regulate the chemical composition of the metal surface。metal(Mainly steel)When heated in a controlled atmosphere，Surface oxidation or decarbonization can be avoided，The surface can also be carburized as required。A controlled atmosphere usually consists of a mixture of more than two gases，When simply to avoid surface oxidation，A single gas can also be used as a protective gas，Such as hydrogen、Argon or nitrogen, etc。The controlled atmosphere is mainly used for metal heat treatment，Also used for
2015-01-05 Reading quantity 2804
introduction：In allIKORolling 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。]In the case of premature damage，approximately25％It is caused by improper installation or incorrect use。Heating may be required for various applications、Mechanical or hydraulic mounting method to install bearings correctly。Choosing the appropriate mounting method for the application will help the bearing
2015-01-05 Reading quantity 1536
introduction：Machining center programming basics The machining of the parts is carried out exactly as instructed。 figure1Machining center programming process Function and type of machining center 1.use：Box type parts and complex surface parts processing。 2.Feature：Milling and boring、drill、tapping。 Because it has an automatic tool change function，After the workpiece is once installed，Be able to complete or nearly complete tasks automatically
2015-01-05 Reading quantity 2809
introduction： The lubrication specification in the equipment manual is the basis for the selection of oil for the equipment，If there are no instructions or regulations，It is selected by the equipment user。The following principles should be followed when selecting oil products： a. Velocity of motion：The higher the speed, the easier it is to form an oil wedge，Low viscosity lubricating oil can be selected to ensure the existence of oil film。Selective viscosity too high，The resulting impedance is large、Calorific value、The temperature is too high。At low speed，It depends on the viscosity of the oil to carry the load，High viscosity lubricating oil should be selected。 b. Carrying load：The greater the general load, the higher the viscosity of the selected lubricating oil。Low speed and heavy load should consider the oil product acceptance
2015-01-05 Reading quantity 1532
introduction：Damage to mechanical parts，It always starts with the surface layer。Product performance，Especially its reliability and durability，Much depends on the quality of the surface layer of the part。The purpose of studying the surface quality of machining is to master the law of the influence of various technological factors on the surface quality of machining，In order to use these laws to control the process，The final result is improved surface quality、The purpose of improving product performance。 one、Effect of machined surface quality on machine performance （one）Effect of surface quality on wear resistance Effect of surface roughness on wear resistance
2015-01-05 Reading quantity 2799
introduction： The most commonly used rolling 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。]。It is simple in structure，Easy to use。It is mainly used to bear radial loads，But when the bearing radial clearance is increased，Has a certain angular contact ball bearing performance，Tolerable diameter、Axial combined load。in
2015-01-05 Reading quantity 1565
introduction： First, the advantages，There are the following： 1、rollFAGbearing[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。]It can be easily applied to any axis in space，fagRolling bearings have been standardized、serialization、universalization,Suitable for mass production and supply，It is very convenient to use and maintain； 2、rollFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row corner joint consisting of a cage assembly with a solid window cage
2015-01-05 Reading quantity 1531
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