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introduction：one、Tapered roller thrust 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 structure of、Performance characteristics Tapered roller bearings due to thrust[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
2014-12-15 Reading quantity 1602
introduction： Most private machinery enterprises enter the market at a low price，It seems to have become routine。However, if it is considered that private machinery enterprises ignore the rules of the game of market competition，Is unfair。In all fairness，They did what they had to do。Seven or eight years ago or earlier debut of private machinery enterprises，At the beginning，That is, not occupying the time，It doesnt take any land，Curl up in a not yet loose policy environment，And encountered the oppression of different economic types of enterprises，We have to make the most of the advantages of low costs，To attack the weaknesses of other economic types of enterprises, especially state-owned enterprises
2014-12-15 Reading quantity 2929
introduction： KOYOBearings are the main components of a locomotive，Especially traction motors、Journal boxKOYObearing，Its function plays an important role in safe transportation，When the locomotive is running on line，In a dayKOYOBearing failure，It will take the entire train out of service，Blocking the main transport line，In particular, passenger trains broke down，The negative impact is even greater，Simultaneous locomotiveKOYObearing[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 are opposite each other on the shaft
2014-12-15 Reading quantity 1607
introduction： The manual sludge discharge of pulse clarifier is not timely，The normal operation of the clarifier is affected，In view of the problem combined with the actual，The water plant adopts automatic control sludge discharge technology。Monitor the mainframe in the automatic control system of the pulse clarifier、Communication network、PLCAnd application software to realize reliability technology design，Two methods of regular discharge and automatic discharge are realized。 keyword：waterworks；Computer application；Settling basin Chinese library classification number：TU991.62 Document identification code：B Article number：1009—2455(200
2014-12-15 Reading quantity 2912
introduction： Ensuring a smooth start is the primary function of the clutch。Before the car started，Naturally, you start the engine first。And when the car starts，The car accelerated gradually from a complete standstill。If drive train（It connects the whole car）Rigidly connected to the engine，Once the transmission is in gear，The car will make a sudden leap forward，But it doesnt get started。This is because the car goes from standstill to forward thrust，It has a lot of inertia，It creates a large drag moment on the engine。Under this inertial resistance moment，The engine speed drops sharply to the lowest stable speed in an instant（normal300-500RPM
2014-12-15 Reading quantity 2926
introduction： one， NSKbearing[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。]Selection stage，There are many factors to consider（case：load，hardness，Operating environment），Well.NSKbearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is fixed in the process of mechanical transmission and reduces the friction coefficient of load
2014-12-15 Reading quantity 1602
introduction：one、FAGbearing[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。]Vibration of Bearing vibration pairFAGbearing[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。]The damage is very sensitive，exfoliation、impression、corrosion、crack、Wear and tear will be reflected in the bearing vibration measurement，therefore，By adopting specialFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、
2014-12-15 Reading quantity 1597
introduction： The use environment and characteristics of electric forklift trucks 1、Four-way electric forklift；Four-way electric forklift truck set forward forklift、Side fork、Counterweight forklift truck functions in one。structurally．Its basically the same as a front lift truck，The door frame is located between the front and rear wheels，In front of the car there are two thrusting legs in the shape of arms，The front end of the leg is equipped with a support wheel，The goods can be moved back and forth in the longitudinal direction of the forklift with the door frame。When the forklift is unloaded，Fork protruding，Fork After unloading the goods, the fork is returned to the middle position near the car body，Therefore, the stability of the forklift is greatly improved。
2014-12-15 Reading quantity 3136
introduction：Working principle The hot air is rotated from the bottom of the dryer to the mixing and crushing drying chamber by the inlet tube at a suitable air inlet speed，Produce strong shear on the material、buoyancy、Rotational action，The material is then centrifuged、shear、collision、It is pulverized by friction，Enhanced mass and heat transfer。At the bottom of the dryer，The larger and wetter particles are mechanically broken under the action of the agitator，The moisture content is low、Smaller particles are carried up by the rotating air flow，Further drying during ascent。Due to the gas-solid two-phase rotational flow，The inertia of the solid phase is greater than that of the phase，The relative velocity between solid and gas phases is large，Enhanced mass transfer between phases
2014-12-15 Reading quantity 2974
introduction： Factors that can cause stress concentration in different parts of quenched parts(Including metallurgical defects),It can promote the formation of quenching crack,But only within the tensile stress field(Especially under maximum tensile stress)It shows,If there is no cracking promotion in the compressive stress field。 The quenching cooling rate is an important factor that can affect the quenching quality and determine the residual stress,It is also a cause that can exert an important and even decisive influence on quenching cracks
2014-12-14 Reading quantity 1686
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