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introduction：one、InstallSKFbearing[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]The preparatory work before 1) Bearing preparation Because the bearings are treated with rust prevention and packed，Therefore, do not open the package before the device。 Then check the size of the shaft and the housing、Shape and finish
2014-12-18 Reading quantity 1626
introduction：（1）Unpacking and checking equipment：Before the equipment is delivered to the site，The general contractor is responsible with the owner(Or on behalf of)Or suppliers jointly check the installed mechanical equipment one by one according to the equipment packing list and equipment technical documents、Registration and inspection，The important parts also need to be inspected and accepted according to quality standards，After inspection，Both sides signed authentication、Hand over。 （2）Foundation pay-off(Device location)：According to the equipment layout and the axis or side line and elevation line of the relevant building，Define the installation reference line。interconnected、Devices that connect or arrange relationships，Common installation datum lines should be released；If necessary, it should be buried
2014-12-18 Reading quantity 1622
introduction： Currently used by various machinery industriesNSKbearing[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。]Most of them are ball bearings.、Needle roller，Only a small number of self-lubricating bearings have been used[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。
2014-12-18 Reading quantity 1567
introduction：Agricultural motors generally choose small motors，In a small motor，pre-general、Ball bearings are used at the rear end[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。]。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，
2014-12-18 Reading quantity 1684
introduction：Imported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]Installation method of medium thrust bearing The fit of thrust bearing and shaft is generally transitional fit，The fit between the seat ring and the bearing seat hole is generally a clearance fit,The central shaft ring of the bi-directional thrust bearing shall be fixed on the shaft，To prevent rotation relative to the axis。Installation method of thrust bearing，In general, the case of axis rotation is mostly，Therefore, the coordination between the inner ring and the shaft is an over-winning coordination，Bearing outer ring
2014-12-18 Reading quantity 1707
introduction：TIMKENbearing[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 most cases，Working condition：Use appropriate gaps。Depending on the use，And bearing in the assembly[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission
2014-12-18 Reading quantity 1681
introduction： Choose which way to build or enhanceHMI，Much depends on personal preferences and abilities。There is more than one method。Some people may adopt itVisual BasicTo develop applications，But need to adoptOPCRun time（runtime）communication。A simple application might onlyout-of-the-box（ready-to-use）Settings，But a more sophisticated system requires more precise and more powerful functions，adoptC++ orC#。Symbol library sumActiveXControls，Suitable for mostHMISoftware package，Can also be used as an extension
2014-12-18 Reading quantity 3013
introduction： An executive assembly used to control fluids。It is an adjustable mechanical throttling device﹐Also known as regulating mechanism。The regulating valve is generally installed on the pipeline﹐Change its drag coefficient﹐You can change the medium that flows through the pipe(gassiness﹑Liquid or powder, etc)Flow rate。From a fluid mechanics point of view﹐A regulating valve is a throttling assembly with variable local resistance。For incompressible fluids﹐The flow rate varies only with the drag coefficient。The change of the resistance coefficient of the regulating valve is achieved through the change of the spool stroke。Generally, the regulating valve works together with the actuator。For example, the regulating valve is combined with the pneumatic actuator into a whole﹐Be constituted
2014-12-18 Reading quantity 2936
introduction： Precision machine workpiece machining allowance can also become blank allowance，Refers to the difference between the blank size and the part drawing design size。In general，We can understand the thickness of the metal layer cut on the surface of the workpiece during the processing of the workpiece。What methods will we use in daily life to calculate the machining allowance of precision mechanical workpiece？There are three common methods。 1）Look-up table method。Machining allowance data according to the relevant manual，Combined with the actual production situation of the factory to be corrected to determine the processing allowance。It is widely available in various factories，Method adopted。 2）Empirical estimation method 。According to process
2014-12-18 Reading quantity 1784
introduction： Alloy steel with high strength and good chemical stability at high temperatures。It includes anti-oxidant steel(Or high temperature non-peeling steel)And heat strength steel two types。Oxidation resistant steel generally requires better chemical stability﹐But the load is lower。Heat strength steels require higher high temperature strength and corresponding oxidation resistance。Heat-resistant steel is often used to make boilers﹑Steam turbine﹑Power machinery﹑Industrial furnaces and aviation﹑Parts that work at high temperatures in industries such as petrochemicals。These components require high temperature strength and resistance to high temperature oxidation
2014-12-18 Reading quantity 2919
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