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introduction： Electric technology has led to the development of electric forklifts Because the traditional electric forklift is to transfer power to the battery and dry，This is where the current is delivered using a carbon brush，And the carbon brush is a wearing part，These two shortcomings need to be replaced regularly，Not only the performance is determined by the carbon brush，This also limits the braking performance，And the carbon brush is a wearing part，Need regular replacement，Otherwise it will affect the life of the motor。Electric forklift manufacturers in order to solve the majority of users of this problem，Later, there were more advanced DC electric forklifts，This electric fork
2015-04-24 Reading quantity 2958
introduction： The role of clutch classification It mainly includes the active part、Driven part、Compression mechanism and control mechanism。Active part has：flywheel、Clutch cover and pressure plate；The driven part is the driven disk；The clamping mechanism is the clamping spring；The control mechanism has a disengaging fork、Separate 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
2015-04-24 Reading quantity 2848
introduction：Base of tool grinding technology one、Tool material Common tool materials in tool grinding are：High speed steel(HSS)、Powder metallurgy high speed steel(PM-HSS)、Cemented carbide(HM)andPCD、CBNAnd other superhard materials。High speed steel knives sharp、Good toughness，Carbide tool hardness is high but toughness is poor。The density of carbide tools is significantly greater than that of high-speed steel tools。These two materials are drill bits、reamer、The main material of milling cutter and tap。The properties of powder metallurgy high speed steel are between the above two materials，Mainly used for manufacturing rough milling cutter and tap。 High speed steel tools are tough because of their material
2015-04-24 Reading quantity 2913
introduction：kuosanhan Diffusion welding diffusion welding Fit the weldment tightly，Kept at a certain temperature and pressure for a certain period of time，A welding process in which atoms between contact surfaces are diffused to form a joint。The main factors affecting diffusion welding process and joint quality are temperature pressure diffusion time and surface roughness。The higher the welding temperature,The faster the atoms diffuse, the welding temperature is generally the melting point of the material0.5～0.8times。Depending on the type of material and the quality requirements for the joint，Diffusion welding is available in vacuum、Do it under protective gas or solvent，Among them, vacuum diffusion welding is the most widely used。for
2015-04-24 Reading quantity 2851
introduction： The basic type of cross rolling： 1.Punch cross rolling：Two rolls with positive and negative cones，The axis lines cross each other at an Angle，The roll rotates in the same direction to make the round blank both rotate and move forward，Under the compression of the positive cone，The center of the blank is loose and hollow，The billet continues to rotate forward to the anti-cone part of the roll，Blank center loose and cavity under the action of the head，Rolled into hollow tube billet。 2.Spiral pass diagonal rolling：Two rolls with spiral pass，Its axis lines cross each other at a small Angle，The roll rotates in the same direction，The driven blank is both rotated and oriented
2015-04-24 Reading quantity 2740
introduction：Linear ball 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。]Used in a variety of mechanical equipment，The conditions required by bearings are becoming increasingly stringent，Bearing performance is also increasingly diversified。 In the selection of linear ball bearings，It is generally believed that，As a bearing，Installation and removal difficulty arrangement，Bearing size and bearing market，As much as space allows，General decision
2015-04-24 Reading quantity 1598
introduction：General for you to introduce the installation steps of the planetary reducer，In fact, in this process, there are several other matters that need to be paid attention to，Here for you to list it I hope you can pay attention to。 copyright by ：www.tyreducer.com 1、No hammering The output shaft of the reducer is fitted with a coupling，Belt pulley，Sprockets and other connecting parts can not be used direct hammering method，Because the output shaft structure of the reducer cannot withstand axial hammering，The shaft end screw hole can be used to push into the coupling。 2、Must be safe
2015-04-24 Reading quantity 2821
introduction：Angular contact ball 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。]Higher limit speed，It can withstand both radial and axial loads，It can also withstand pure axial loads，The axial load capacity is determined by the contact Angle，And it increases with the increase of the contact Angle。 Single row angular contact ball bearings can only withstand axial loads in one direction，Under way
2015-04-24 Reading quantity 1506
introduction：Allowable stress The maximum allowable stress value of a part or member in a mechanical design。To determine the working stress of the part or member after loading is too high or too low﹐A standard of measurement needs to be determined in advance﹐This criterion is the allowable stress。When the working stress in any part or member does not exceed the allowable stress﹐This part or component is safe in operation﹐Otherwise, its not safe。Allowable stress is the basic data in mechanical design。In practical application﹐The allowable stress value is generally determined by the national engineering authority according to the principles of safety and economy﹐By the strength of the material﹑load﹑Environmental condition﹑Processing quality﹑Calculate accuracy and parts or
2015-04-24 Reading quantity 2826
introduction： 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。]The matching with the shaft adopts the base hole system，The combination of bearing and housing adopts the base shaft system。Bearing size tolerance and rotation accuracy of the numerical pressGB307—84Regulation of...。 2、Press the journal and bearing box hole matching with the bearingG
2015-04-24 Reading quantity 1583
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