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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 function of coordination is to makeKOYOThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(usuallyKOYOBearing block)And rotating part(Usually an axis)Solidify together，Thus realized in the rotating state of transmission
2014-12-18 Reading quantity 1485
introduction： Equipment maintenance，Often need to judge lubricants、Fat quality is good or bad，And its motion on the equipment，The impact of the fault cause。In the absence of analytical tests，Some simple identification methods are used，Clearly necessary。 1.Easy identification of lubricating oil （1）Viscosity test：It is usually the lubricating oil already used by the equipment and the lubricating oil of the standard viscosity that the equipment needs to use，The method of comparison is used to test，To determine if an oil change is needed。 1）On a clean piece of glass，Apply one drop of test oil and one drop of standard oil。Drip time，You need to lay the glass flat。After dripping the oil
2014-12-18 Reading quantity 1468
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。]Chinese and English comparison of terms-2： combinationbearingCombination bearing[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 1465
introduction：121：Whats the problem？ a：In order to eliminate the influence of plate thickness on the shape and size of the developed diagram，And the methods taken。 122：What are the general steps for calculating the expansion length of a curved part？ a：Divide the bending part into straight section and arc section；Calculate the length of each paragraph separately；Add the calculated lengths。 123：Under what circumstances should the cut of the section steel be used？ a：Steel Angle、Steel channel、The I-beam is bent at a fold Angle。 124：The whole blanking process is divided into several stages a:In three stages。Elastic deformation stage；Plastic deformation stage；Shear fracture step
2014-12-18 Reading quantity 2799
introduction： 1introduction With the acceleration of Chinas entry into WTO，Metallurgical industry only continuous technological transformation，Improve the quality of products，Reduce production costs，In order to win a place in the market。Because the continuous casting machine has a high metal yield，Low energy consumption，High single-stream yield，Casting billet quality is good，mechanization、High degree of automation advantages，The development of continuous casting machine has become an important symbol of technological progress in iron and steel enterprises。Jiangsu Shagang Group after studying the international and domestic markets，Resolutely introduce a set of continuous casting machine for producing excellent steel，Annual production capacity of up to100Ten thousand tons。In this paper, the system structure and main of basic automation are introduced
2014-12-18 Reading quantity 2832
introduction：Precision ceramic 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。]Can be called from the manufacturing material to the 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，Bring down
2014-12-18 Reading quantity 1471
introduction：Although the number of hard gear reducer produced in China has jumped to the first place in the world，However, there is still a certain gap in technology and service compared with advanced foreign manufacturers，Universal view，Promoting the technical level of Chinas hard gear reducer is the only way to promote its rapid development。 Universal view，In the state, the cost of hard gear reducer for research and development can be compensated by implementing tax breaks，Thus to promote the production enterprises to optimize the hard gear reducer。Only in this way can the technical level of domestic hard gear reducer reach a new grade。 After ten years of development，Chinas hard tooth surface deceleration
2014-12-18 Reading quantity 2840
introduction： The rotary motion of the motor is converted to the linear reciprocating motion of the slider by the crank slider mechanism﹐Forging machine for forming and processing billets。The mechanical press operates smoothly﹐Work reliably﹐Widely used in stamping﹑extrusion﹑Die forging and powder metallurgy。The number of mechanical presses accounts for more than half of the total number of all kinds of forging machinery。The specifications of mechanical presses use nominal working force(kilniu)expression﹐It is about the slider moving to the bottom dead center of the distance from the stroke10～15millimetre(Or crank Angle from bottom dead center
2014-12-18 Reading quantity 2843
introduction： Abstract：Combined with the promotion and application of domestic frequency conversion technology，The technical characteristics of several control methods of general frequency converter are described，Reasonable selection of inverter control mode，This paper focuses on the selection and application of the rotation-controlled frequency converter。 keyword：Control mode；Application selection；Matters needing attention 1introduction Frequency conversion technology is born in response to the needs of AC motor stepless speed regulation。20century60After ten years，Power electronics have experiencedSCR（thyristor）、GTO（The gate pole can shut off the crystal
2014-12-18 Reading quantity 2889
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。]Fault analysis，Bearings are an important part of system engineering to improve working surface reliability[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
2014-12-18 Reading quantity 1514
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