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introduction：Elaborated based onUGMethod and step of generating table driven standard part model base，How to build parametric model with an example、Solid design variable、The assignment of design variables to the model and the setting and editing of electronic tables are discussed in detail。Practice proves，With this method, the 3D parametric model base of parts can be easily and quickly established，Realize the serial design of parts，It can greatly improve the design efficiency。 Shape similarities are often encountered in the manufacturing industry，But not exactly the same size parts，Such as serialized product parts。For the 2D design of these parts，At present, it is relatively mature。But as
2015-01-13 Reading quantity 2919
introduction： The consumption caused by the change of chemical reaction or electrochemical reaction between the metal and the substances in its environment is called corrosion。 Metal surface corrosion is a common phenomenon，Light affects sound perception，Seriously affect the performance of the product，Even affect the service life。Metal corrosion can take many forms，However, the nature of the metal and the surrounding medium can be divided into chemical corrosion and electrochemical corrosion。 Chemical corrosion is caused by the pure chemical interaction between the metal and the surrounding medium。No electrical current is generated during chemical corrosion，But there are corrosive substances。this
2015-01-13 Reading quantity 1540
introduction：Tool installation time，Pay special attention to cleanliness。Boring tool whether rough machining or finishing，At all stages of installation and assembly，Must pay attention to cleanliness。Assembly of tool handle and machine tool，Blade replacement and so on，They need to be wiped clean，Then install or assemble，It must not be done carelessly。 The tool is pre-adjusted，Dimensional accuracy，Sound condition、Must meet requirements。Indexable boring tool、Except for single-edge boring tool，Generally, the method of manual trial cutting is not used，Therefore, the pre-adjustment before processing is very important。The preset dimensions must be precise，It should be adjusted at the lower and middle tolerance，And consider the factors due to temperature，Make corrections、compensate。The knife
2015-01-13 Reading quantity 2896
introduction： There are friction plates on the clutch pressure plate，Its like a brake on a wheel，Its made of very hard wearing asbestos and copper wire，The friction plate of the pressure plate also has a minimum allowable thickness，After driving a long distance，The friction plate on the press plate should also be replaced。The clutch is divided into three operating states，That is, full linkage without depressing the clutch，Partially depress the clutch half action，And the disengagement of the clutch。When the vehicle is in normal motion，The pressure plate is tightly pressed against the flywheel friction plate，At this time, the friction between the pressure plate and the friction plate is the greatest，Relative static friction is maintained between the input and output axes，Both rotate at the same speed.。When the vehicle starts，Chauffeurs step
2015-01-13 Reading quantity 2815
introduction： Generally speaking，To control 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。]Noise effect，The causes of these noises must be addressed，In order to receive the root effect。The main way is： (1)Choose low noise bearings； (2)from
2015-01-13 Reading quantity 1573
introduction：one、INAbearing[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。]Vibration of INABearing vibration is very sensitive to bearing damage，exfoliation、impression、corrosion、crack、Wear and tear will be thereINAIt is reflected in the bearing vibration measurement，therefore，By using a special bearing vibration gauge（Frequency analyzer）Vibrations can be measured
2015-01-13 Reading quantity 1528
introduction：usual，The shaft is made of two 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。]Supported in radial and axial directions，The bearing on one side is called the fixed-end bearing，It bears both radial and axial loads，It acts as the relative axial displacement between the fixed shaft and the bearing box。The other side is called the free end，Bear radial loads only，The axis can move relative to each other
2015-01-13 Reading quantity 1554
introduction：Axis line、plane、direction 1.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。]Axis linebearingaxis The theoretical rotating axis line of a rolling bearing，The opposite bearing is the inner ring axis line，For thrust bearings, it refers to the axis line of the shaft ring。 2.&nbs
2015-01-13 Reading quantity 1580
introduction： Rotary flash dryer，Because the air is blown into the heat exchanger by the blower to heat to the required temperature setting value，The heated hot air enters the mixing and crushing chamber from the bottom of the rotary flash dryer at an appropriate airflow speed，Due to agitation and hot air blowing，Produce strong shear on the material，Collision and friction to fine material，Thus, the heat and mass transfer process is strengthened。Air entrainment of spiral rotation in drying chamber，Move the material upward，When the material with larger particles moves to the top，The top of the drying chamber is provided with a material classifier，Because of the classifier，The larger particles fall back to the bottom and participate in the above
2015-01-13 Reading quantity 1609
introduction： one、Ac frequency conversion speed regulation characteristics 1.Reduce power consumption and reduce costs A textile mill cannot live without air conditioning。When the air conditioning motor is controlled by the frequency conversion governor，Reduced power consumption，Greatly save electricity expenditure。According to data provided by a company，annual12An air conditioner can save electricity24More than ten thousand yuan，The average unit electricity consumption for air conditioning has dropped6、7Percentage point。 2.Simplified mechanism and improved performance passPLCProgrammable controller or industrial computer control，Then the frequency conversion governor realizes the synchronous and coordinated operation of multiple motors。Per production worker
2015-01-13 Reading quantity 2906
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