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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。]It cannot be observed directly while it is in operation，But through the noise、Vibration、temperature、Lubricants and other conditions can detect bearing abnormalities。Representative example of bearing damage； 1、Crack defect Some of the gaps are cracked。The reasons are：The impact load of the host is too large，The interference of spindle and bearing is large；As well as
2014-12-31 Reading quantity 1503
introduction：willTIMKENbearing[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。]When removed for inspection，First use photography and other methods to record the appearance。In addition，Determine the amount of remaining lubricant and sample the lubricant，Then clean the bearing。 a、TIMKENThe cleaning of bearings is divided into rough washing and fine washing，Gold can be placed on the bottom of the container used
2014-12-31 Reading quantity 1502
introduction：1 Subject content and scope of application This standard specifies the terminology for immersion bottle washers、Product classification、Technical requirement、Test method、Inspection rule、mark、package、Transportation and storage。 2 Reference standard ZBY 99020 Dairy machinery model compilation method QB 842.7 General technical conditions for light industrial machinery weighing instruments Paint GB 3768 Noise source sound work
2014-12-31 Reading quantity 2892
introduction：Spiral seal Non-contact dynamic seal with thread to stop liquid leakage﹐Also known as thread seal。The thread is usually machined on the rotating shaft of the sealing part﹐The fluid that leaks during operation fills the thread and the space contained in the housing﹐form“Liquid nut”。The direction of the thread on the shaft makes“Liquid nut”Axial motion occurs when the shaft rotates﹐The liquid is constantly returned to the high pressure end。Spiral seal is suitable for liquid viscosity﹑Small pressure difference and medium speed occasions。Basically not limited by the temperature of the liquid。
2014-12-31 Reading quantity 2823
introduction： Maintenance is divided into two methods according to the degree of wear：The front one is for fans only，The second is also being tested on computers。 The first kind：First, clean the dust from the fan，Avoid dust entering the bearing during installation[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。]Within the，And then will
2014-12-31 Reading quantity 1652
introduction：lixin zhuzao Centrifugal casting centrifugal casting Liquid metal is poured into a rotating mold，Casting method of filling and solidifying into castings under centrifugal force。Centrifugal casting machine is called centrifugal casting machine。According to the rotation axis of the mold direction is different，Centrifugal casting machine is divided into horizontal vertical(See picture[Centrifugal casting diagram])Sum-tilt type3Kind of。Horizontal centrifugal casting machine is mainly used for casting various tubular castings,Such as gray cast iron ductile iron water pipes and gas pipes,Minimum pipe diameter75millimeter,Maximum accessibility3000Mm can also be poured paper
2014-12-31 Reading quantity 2820
introduction： Reproducing the basis of length measurement“meter”The exact length of﹐Pass the verification according to the verification system stipulated by the state﹐Step by step or pass directly to work﹑Length measuring tools with different accuracy levels﹐The process of ensuring that the measured values are accurate and consistent。It is one of the main contents of length measurement technology。Chinas length measurement of the quantity value transfer system by the national benchmark﹑Secondary datum﹑Work base and measurement standards, etc。National benchmarks refer to reproducibility“meter”outfit﹐Including the national standard of face length and the national standard of line length。The sub-benchmark is passed with the national base
2014-12-31 Reading quantity 2836
introduction： IKOThe function of the bearing fit is to make the needle roller 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 stationary ring and the rotating ring are respectively the stationary part of the installation position(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus the load is transferred in the rotating state
2014-12-31 Reading quantity 1476
introduction： 【Abstract】The traditional manual craft design has seriously hindered the survival and development of enterprises，In order to change this backward process design method，The company is in...“The ninth Five-Year Plan”Interim country“863”item“All vehicles work in parallel”In the，Stamping partCAPPIt is developed as a subsystem、Apply、Carry out，And realizedPDMLower stamping partCAD/CAPPIntegration of，The efficiency of process design is improved30The goal of。 【keyword】Concurrent engineering/CEComputer aided process design/CAPPGroup technique/GTTwo-dimensional drawing software/AutoCADsurface
2014-12-31 Reading quantity 2910
introduction：1、Laser generator。 For the use of laser cutting，Except for a few occasionsYAGSolid-state laser exterior，Most of them use electricity-High optical conversion efficiency and high output powerCO2Gas laser。Laser cutting requires high beam quality，So not all lasers can be used for cutting。 2、Nc cutting machine。 It consists of three parts，table（Generally for precision machine tools）、Beam transmission system（Sometimes called external light path，That is, the transmission optics of the beam in the entire optical path before the beam emitted by the laser reaches the workpiece、Mechanical component）Wo microcomputer
2014-12-31 Reading quantity 2908
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