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introduction：one、 NSKbearing[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。]Installation of： NSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in19
2015-03-11 Reading quantity 1440
introduction：usual，The axis is in twoINAbearing[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 rolling 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，Axially adjustable
2015-03-11 Reading quantity 1573
introduction：1>、Delay prevention：Screw metering in place，Back a straight distance，Make the specific volume of the measuring room larger，Internal pressure drop，Prevent fluid from flowing out of the measuring chamber。< 2>、Another purpose of anti-drift is that the injection nozzle does not move backward>When premolding，Reduce nozzle runner system pressure，Reduce internal stress，And easy to draw out the water nozzle when opening the mold。< 3>、The delay resistance will cause air bubbles to be mixed in the measuring chamber，It even causes poor appearance of the finished product。There is no delay for materials with high viscosity。
2015-03-11 Reading quantity 2793
introduction： A pump is a machine that transports or pressurizes liquid。It transfers mechanical energy or other external energy from the prime mover to the liquid，It increases the energy of the liquid。Pumps are mainly used to transport liquids including water、oil、Acid lye、emulsion、Suspension emulsion and liquid metal, etc，It can also transport liquids、Gaseous mixtures and liquids containing suspended solids。 The ascension of water is very important for human life and production。There were all kinds of water lifting equipment in ancient times，For example, Egyptian chain pumps(B.c.17century)，Shadof of China(B.c.17century)、windlass(B.c.11century)waterwheel(A.d.1century)。
2015-03-11 Reading quantity 2800
introduction： An open market economy，Has changed our work and life，Its changed the way we live：Take most of us from the original average、Dull work and life in the transition to the gap、Colorful work and life，The reason for this huge difference，I think it is.“compete”。The essence of competition is“profit”。Competition brings vitality to society，It has also brought progress，However, competition also makes many people lose themselves，Rack your brains for profit。These are the people who distinguish us every day“True and false”、“True and false”Be troubled by，We cannot but say that this is a tragedy brought about by social progress
2015-03-11 Reading quantity 1548
introduction： Unless sharing is one of those intuitive pickups that often goes unnoticed。 When using Edit ->Curve-> Trim You usually choose the boundary object，Skip the selection step and select the curve to be trimmed。You naturally choose one curve at a time。 As shown in the figure，To visually pick up the trimmed curve，You can drag and drop a rectangle in the graphics window to intersect the clipped area。
2015-03-11 Reading quantity 2930
introduction：When choosing a fit，The first thing to consider is the type of load that the ring bears。There are usually three types of load bearing rings: 1Fixed load The resultant radial load acting on the ring，Borne by a local area of the ferrule raceway，And transmitted to shaft or 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
2015-03-11 Reading quantity 1625
introduction：Basic equations of turbine machinery: The equation of moment of momentum in integral form under constant flow is applied to the equation obtained in turbine machinery。It is one of the fundamental equations of fluid dynamics﹐Mathematician by SwitzerlandL.Euler proposed﹐Therefore, it is also called Euler equation of turbine machinery。This equation is usually expressed in two ways or ShizhongmandP Respectively are the torque and power transmitted on the drive shaft﹔ΔmandΔP They are respectively impeller idling friction blast loss and 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
2015-03-11 Reading quantity 2814
introduction： The use of molding software has been recognized by the industry。Processing modeling is different fromCAD。In view ofCADIt mainly involves the design of products and devices，Processing modeling is mainly concerned with preparing a model for manufacturing and design of the tool required for processing。Even if some people see it asCADA part of，howeverCIMdataAlways regard the processing molding asCAMAn element of。 Although machining micro software is used in most industrial areas，But the most widely used is mold manufacturing，It is...CAMKey areas of。CIMdataEstimated mold making is
2015-03-11 Reading quantity 2788
introduction：We can use a sounder，In operationFAGbearing[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 size and quality of the rolling sound are checked。Because the bearing even has a slight peel and other damage，Abnormal and irregular sounds can also be produced，So it can be distinguished with a sounder，Play a preventive role in advance。 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。]
2015-03-11 Reading quantity 1549
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