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introduction：It is increasingly important to check the condition of machines in operation and prepare a thorough inspection plan，In addition toNSKbearing[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。]Be the center of attention，Because its all
2015-03-14 Reading quantity 1440
introduction：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 clearance refers to the case when a ferrule is fixed，The maximum flow of another ring along the radial or axial direction，Therefore, the clearance can be divided into radial clearance and axial clearance。Dynamic needle roller bearing assembly，You cant have too much clearance，Not too small.。There is too much clearance，Can cause simultaneous loading
2015-03-14 Reading quantity 1537
introduction：According to incomplete statistics，At present, there are more than twenty iron and steel companies in our country(factory)，nearly200The stand mill is equipped with oil film 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 amount is enormous。This situation，It is enough to show that the oil film bearing operation technology of rolling mill has been widely popularized in China，And has reached the new water of todays world
2015-03-14 Reading quantity 1434
introduction：Continuous furnace Industrial furnaces in which the heating process is accomplished by means of conveyors that move the workpiece continuously or pulsatively through different temperature zones within the furnace。Continuous furnaces are characterized by staging heating along the length of the furnace﹐With preheating﹑heat﹑soaking﹑Cooling stage﹐It can distribute heat reasonably﹐It is beneficial to improve the heat utilization rate and productivity of the furnace﹔It helps to reduce the temperature difference of the workpiece section and control the heating process。Continuous furnaces are usually used in China﹑Mass and continuous production of small workpieces。Continuous furnaces used in the machinery industry are mainly used for metal forging﹑Heat treatment of metal﹑Powder metallurgy﹑Abrasive sintering and other heating﹐Also used for sand molding and paint drying
2015-03-14 Reading quantity 2775
introduction：Permanent strength Long strength metal material﹑Resistance of mechanical parts and structures to high temperature fracture﹐Often expressed as a endurance limit。The sample is at a certain temperature and a specified duration﹐The stress causing the fracture is called the endurance limit。The endurance limit of metal materials is determined by high temperature endurance test。Aircraft engines and crews are typically designed to last hundreds to thousands of hours﹐The endurance limit of the material can be determined directly by the same time test。In boiler﹑In the manufacture of gas turbines and other turbine machinery﹐The design life of the unit is generally more than tens of thousands of hours﹐Their endurance limits can be extrapolated from short test data to tens of thousands of hours
2015-03-14 Reading quantity 2781
introduction：senlin caiyun jiexie Forest mining machinery logging and log-transport machinery Used for deforestation、The general term for machinery and equipment for wood transportation and lumberyard operations mainly includes wood cutting machinery、hoisting-Conveying machinery、Transport machinery and logging operations combined4Broad category。 Wood cutting machinery refers to the cutting area or storage yard for trees（Inclusive tree、Felled tree、Primitive streak、logs）In a certain way（sawing、planing、milling、cleaver）transect
2015-03-14 Reading quantity 2784
introduction：1Large reduction ratio，High efficiency：Reduction of transmission ratio9solstice87Reduction in two phases121 5133The transmission rate is up to tens of thousands of multistage combinations，The appearance of sleeve rolling friction between the part and the needle teeth，Contact without relative sliding，To slow down efficiency levels94 ％ 2 ，Smooth operation，Low noise：Run the number of teeth in contact at the same time，Overlap degree，Smooth operation，Strong overload capacity，Low vibration and noise，Noise patterns of various specifications。 3 ，Reliable use，Long life：The main parts are hardened high carbon steelHRC58 - 62regrind，cycloid
2015-03-14 Reading quantity 2881
introduction：Angular contact 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。]How to measure and install the dimensions Take single-set angular contact ball bearings as an example； The measuring method of outer diameter and inner diameter is the same as that of single row deep groove ball bearings，The width of the angular contact deep groove ball bearing is called the assembly height； ACcontact-type：Use the big end as the base，The preload force acts on the big end of the outer ring
2015-03-13 Reading quantity 1535
introduction： The name According to Steel emery Chemical composition carbon(C) 0.70～1.20%
2015-03-13 Reading quantity 1543
introduction： one、Function and use JSDThe series of sucking scanning self-cleaning filters are suitable for filtering fine impurities in suspension，General impurity500-25micron，It is a fine filter device。 two、Equipment structure and working principle JSDSeries of sucking scanning self-cleaning filters with high strengthJohnsonWedge screen，Controlled by differential pressure、Timing control automatic cleaning filter。When the impurities in the filter accumulate on the surface of the filter screen, the inlet and outlet pressure difference increases to a predetermined value，Or the timer reaches the set
2015-03-13 Reading quantity 2787
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