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introduction：In this paper, the application of frequency converter on external grinding machine in machining industry is analyzed in detail，Frequency conversion speed regulation technology is introduced into the main motor of cylindrical grinding machine as the power，To meet the needs of various kinds of coaxial cylindrical grinding，Improve work efficiency，The machining quality of shaft grinding is improved，Save energy。Combined with the actual field application，Operators have better reflexes，Surface smooth imaging degree is high，The yield has been greatly improved。 introduction External cylindrical grinding machine used for standard machining，The grinding wheel motor runs according to the traditional starting circuit。The motor runs at the rated speed after starting，by
2015-03-28 Reading quantity 2796
introduction： Basic knowledge of die steel one、Basic classification 1.The types of steel are very mixed and many，Among them, mold steel is divided into three categories： a.Plastic die steel：High finish b.Hot working tool steel：High strength、High temperature resistance c.Cold working tool steel：High pressure resistance、wear-resistant——‘High speed tool steel’A branch of 2.Common brand marks： a.JIS——Japanese industrial specification b.ASTM——American Society for Testing Materials specifications c.A
2015-03-28 Reading quantity 2906
introduction：Planer with portal frame and long horizontal bed。The planer is mainly used for planing large workpieces﹐It can also be mounted on the workbench to clip multiple parts at the same time。Double housing planer(See picture Diagram of the planer )The table carries the workpiece through the portal frame for linear reciprocating movement﹐The empty stroke speed is greater than the working stroke speed。The beam is usually equipped with two vertical tool holders﹐The tool holder slide can be rotated at an Angle in the vertical plane﹐And can make transverse feed movement along the beam(Sighting machine)﹔The planer can be fed vertically or diagonally on the tool holder﹔The beam can be adjusted up and down on the two pillars。Generally, it can also be installed on two columns along the column
2015-03-28 Reading quantity 2794
introduction：1．The processing of the ring: Rolling 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 processing of the inner and outer rings varies according to the raw material or blank form,The process before turning can be divided into the following three types,The whole processing process is： Bar or pipe material（better The material needs to be forged and annealed、normalizing）---
2015-03-27 Reading quantity 1544
introduction： 1、OWhen the ring is installed in the groove，It should be allowed some room for expansion。usual，The allowable expansion rate in a static seal is approximately15％，In a dynamic seal is approximately8％。For different types of grooves，Its scope of application is also different。There are three commonly used groove forms： a、Triangular groove It is often used as a seal on orchids and end caps。The disadvantage is that it creates difficulties，adhiyaOThe space for the ring to expand is very small。 b、Rectangular groove Widely used in various occasions，When there is no need to use a stop ring，It can also be made into sloping sides<5o（Trench dimensions are shown on the back page）。
2015-03-27 Reading quantity 1573
introduction：A conveyor that uses a series of slats attached to a traction chain to transport material in a horizontal or inclined direction。It is driven by the mechanism﹑Tensioning device﹑Drag chain﹑lath﹑Drive and redirect sprocket﹑Frame and other parts of the composition(figure1 Plate conveyer ) 。The form of the slats varies according to the material being transported。Flat strips are used when conveying items into one piece﹔Lapping slats with flanges are used for conveying bulk materials with large particle size﹔Trough slats with flanges are used for conveying small particle size materials (figure2 Sectional diagram of the slats )。Trough slats with flanges can increase the conveying Angle and increase the conveying capacity。General plate conveyor transport
2015-03-27 Reading quantity 2806
introduction：The impact sound of the rolling element and its control method are larger modelsINAbearing[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。]At low speed under pure radial load，Because the centrifugal force of the rolling body is small，The rolling element in the non-load zone will impact the cage or raceway and make noise。But as the RPM increases，The sound will disappear。Pair roll
2015-03-27 Reading quantity 1458
introduction： Dry electromagnetic clutch use precautions 1、Do not add grease when using dry electromagnetic clutch，Otherwise, the torque will decrease。 2、The electromagnetic clutch must be cleaned before installation，Remove anti-rust grease and debris。 3、The electromagnetic clutch can be mounted coaxial，Shaft mounting is also possible，The axis must be fixed，The active part and the driven part are not allowed to have axial movement，When installing the shaft，The coaxiality between the active part and the driven part axis should not be greater than0.lmm。 4、When wet electromagnetic clutch is working,Must be in
2015-03-27 Reading quantity 2807
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。]Failures are often due to a variety of factors，All design and manufacturing process factors are affected and bearing failure，Their analysis is not easy to determine。Under normal circumstances，In general，You can consider and analyze factors and internal factors
2015-03-27 Reading quantity 1631
introduction：1、Low noiseINAbearing[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 installation and adjustment of long-life bearings can be grouped according to the group，Make the size of the interference consistent，Bearing clearance is also more consistent，You need to be as disruptive as possible，Take a smaller value，Make sure the raceway deformation is small，Therefore, the rolling noise is less。Clearance when the noise bearing principle
2015-03-27 Reading quantity 1591
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