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introduction：one、introduction Leakage is a common fault phenomenon in hydraulic machinery at present，Especially in the construction machinery hydraulic system is more serious，It is mainly due to the pressure difference caused by the liquid flowing in the hydraulic components and pipelines and the gap between the components。In addition，Harsh working conditions will also have a certain impact on the sealing of construction machinery。Once the hydraulic system leaks，It will cause the system stress not to build up，Hydraulic oil leakage can also cause environmental pollution，Affect production and even produce serious consequences that cannot be estimated。The following are some factors affecting the leakage of construction machinery hydraulic system to briefly talk about its leakage
2014-12-16 Reading quantity 1670
introduction：1．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。]The processing of the ringINAbearing[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，Be used for
2014-12-16 Reading quantity 1696
introduction： Serial number Standard number Standard name Substitute standard number Implementation date 1 GB/T 12226-2005 Universal valve Technical conditions for gray cast iron
2014-12-16 Reading quantity 3057
introduction： For short beats、Line manager、Products complex engine processing automatic line，Before the tool is optimized，To reasonably set the machine tool suppliers original tool(Most of the tools used in machining automatic lines are non-standard tools) Tool life，Is a very noteworthy focus of work。Reasonable setting can ensure product quality，Reduce tool costs;conversely，Rising tool costs，Workpiece waste continuously appeared，The machine running rate is reduced，Aggravating machine damage，Thus can not achieve the purpose of lean production。 Reasonable setting of tool life，Its purpose is to ensure the quality of products under the premise，With the lowest
2014-12-16 Reading quantity 3047
introduction：To maintain it in good condition for as long as possibleNSKbearing[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。]Inherent performance，Must be maintained、overhaul、To prevent accidents before they happen，guaranteed
2014-12-16 Reading quantity 1602
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。]At work，For a variety of complicated reasons，Such as unreasonable structure，Poor material quality，Low performance，Defects in the work surface，strike，Vibration，Improper installation and poor lubrication，Can cause bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）Be at
2014-12-16 Reading quantity 1591
introduction：An internal combustion engine in which high-temperature and high-pressure gas produced in the combustion chamber rotates the piston to produce power。The power is output by the main shaft。Since the1876GermanN.A.Otto invented the reciprocating piston internal combustion engine，People have tried to create rotor internal combustion engines，But all failed due to rotor seal problems。Although rotary piston pumps and compressors have gained applications，But the rotary piston engine until1954Federal Engineer of GermanyF.It was only possible after Wankel made a breakthrough in sealing technology。Alien to1957The first rotary piston engine was built，Some call it a Wankel engine。It has been improved to have power
2014-12-16 Reading quantity 2954
introduction： Vibrating screen machinery has been used by many people，The most easy place to break the vibrating screen machinery is insideSKFImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]the。If installedSKFImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，
2014-12-16 Reading quantity 1599
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。]And axle diameter 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，Used to reduce friction during power transmission
2014-12-16 Reading quantity 1667
introduction：1.How to define the position of the shaft，Both radial and axial positions are the first things to consider。 The general shaft mostly uses double support structure，The radial position of the shaft is defined by two supports，Each support shall have a radial or angular contact bearing for radial positioning[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 axial position may consist of two branches
2014-12-15 Reading quantity 1613
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