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Hybrid 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。]Sliding 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，To reduce motion
Lubricant lubrication The lubricant is simple to use，The design of the sealing device is simple，Therefore, it is widely used in 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。]。Choose the base oil when choosing the lubricant，Thickening property，Consider the types and characteristics of additives, etc，Finally determine the most suitable bearing[bearing:bearing（“B
1.Cycloidal reducer noise is larger，If it feels loud，And the oil temperature hasnt changed，It usually doesnt matter，Or check the noise level，Call the reducer manufacturer to consult whether the noise value is normal。 2.Lubrication problems often lead to the problem of heat and loud noise of the reducer，，overlube，Puddling loses power and generates a lot of heat，，，Too little oil，Friction also generates a lot of heat。 3.A speed reducer for mixing，Cycloidal reducer should generally be installed vertically，In this case，Small type of reducer is generally grease lubricated，Please make sure
1.Frictional compatibility The property of preventing adhesion and boundary lubrication when the bearing diameter is in direct contact with the bearing bush。The material factors that affect the friction compatibility of friction pairs are： （1）The degree of difficulty in forming alloys in metallurgy。 （2）Affinity of material to lubricant。 （3）Friction factor of the auxiliary material in the non-lubricated state。 （4）Microstructure of materials。 （5）Thermal conductivity of the material。 （6）The size of the surface energy of the material and the characteristics of the oxide film。 2.embedability The material allows foreign hard particles in the lubricant to clamp in and prevent scratching or scratches（and）Energy of abrasive wear
Maintain the bearing well[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。]Tapered roller 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，Used to reduce power transmission
Selective 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。]Type time，Bearing should be considered[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，Bring down
zailengji Secondary refrigerant secondary refrigerant In a refrigeration unit operating in an indirect cooling mode，The heat of the cooled object is transferred to the working medium of the evaporating refrigerant。The refrigerant is usually liquid，Generally no phase transition occurs during the transfer of heat。A common refrigerant is water、Salt water、Propylene glycol and ethylene glycol、Dichloromethane and fluoro-trichloromethane。①water：Suitable for refrigeration temperatures in0℃Above occasions,Such as air conditioning equipment。②Salt water:An aqueous solution of calcium chloride or sodium chloride,Can be used for cold storage in brine ice makers and indirect cooling
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。]Parts in the actual use process，Often to be stretched、compress、bend、shear、Alternating and other complex stress states and high stress values， Working long hours at high speed。 Choose to manufacture rolling bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）Be at
Vertical machining center（triaxial）The most effective machining surface is only the top surface of the workpiece，Horizontal machining center with rotary table，It can only complete the four-sided processing of the workpiece。At present, high-end machining centers are developing in the direction of five-axis control，The workpiece can complete the machining of the pentahedron with one clamping。Such as the configuration of five axis linkage of high-grade CNC system，It can also process complex space surfaces with high precision。 Vertical five-axis machining center There are two modes of rotation of this type of machining center，One is the table rotation shaft。The work table set on the bed can be wrapped aroundXShaft rotation，
property：The inverter with suitable performance should be selected according to the process requirements，Dont go for high performance，Because the higher the performance, the higher the price。Inverter for fan pump，Common sinusoidal pulse width modulation frequency converter can meet the requirements，Because the fan pump is a square torque load，Torque decreases significantly at low speed，And the fan pump does not require high precision speed and complex control functions（Such as positive and negative rotation）。If it is the control compressor，Because the compressor torque characteristics are more complex，Especially the starting torque is very large，Therefore, a vector inverter with good torque characteristics and current limiting function should be selected。If its paper making、For chemical fiber equipment，Shall select
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