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introduction：Mainly used for earthwork excavation machinery。According to the operation process, there are two types: periodic type and continuous type，Wherever digging、carry、The operations such as uninstallation are performed repeatedly in cyclic mode，Such as a variety of single bucket excavator；Where the above operations are carried out continuously at the same time, it is continuous。Such as a variety of multi-bucket excavators、Roll-cut excavator、Tunnel boring machine, etc。Power is electrically driven、Internal combustion engine drive and compound drive。A single engine drives all the mechanisms of the excavator，A multi-engine drive in which several engines drive each main mechanism separately。The power transmission mode is mechanical、Hydraulic and hybrid。The walking device is crawler-type、
2015-06-29 Reading quantity 2902
introduction：A woodworking machine for working a flat or formed surface of wood with a rotary or fixed planer。According to different process uses,Woodworking planer can be divided into flat planer single-side press planer、Double-sided planer、Three side planer、Four side planer and finishing planer, etc。 Flat planer for woodworking（figure1 [Flat planer for woodworking]）A datum or two intersecting planes for planing a work piece。The motor is driven by tape to rotate the planer shaft at high speed，Hand feed the workpiece along the guide plate close to the front table towards the planer shaft。The front table is lower than the rear table,Height adjustable,The height difference is the thickness of the planing layer。Adjusting the guide plate can change the machining width and Angle of the workpiece。The knot of the planer
2015-06-29 Reading quantity 2943
introduction：A set consisting of various different shapes、Specifications and uses of standardized components and components composed of machine tool fixture systems。In use，According to the processing requirements of the workpiece, the appropriate components and components can be selected，In the way of building blocks assembled into a variety of special fixtures，Modular fixture。The combination fixture can be easily disassembled after use，For the next assembly。The application range of the combined fixture system is very wide,Not limited by the shape of the workpiece,It can be assembled into a drill、milling、plane、car、A special fixture for boring and other machine tools，It can also be assembled for inspection、Fit out、A fixture for welding, etc，It is most suitable for new product trial production and product frequently replaced single piece、sublot
2015-06-29 Reading quantity 2918
introduction： Workpiece rotation﹐A cutting process in which the turning tool moves in a straight line or curve on a plane。Turning is usually done on a lathe﹐Used for machining the inner and outer cylinders of the workpiece﹑End face﹑Conical surface﹑Forming surface and thread(See threading)Etc.。figure1 Several typical turning methods Are several typical turning methods。When turning the inner and outer cylinders﹐The turning tool moves in a direction parallel to the axis of rotation of the workpiece。When turning the end face or cutting the workpiece﹐The turning tool moves horizontally in a direction perpendicular to the axis of rotation of the workpiece。If the motion path of the tool is at an oblique Angle to the rotation axis of the workpiece﹐You can make a cone。Turn into
2015-06-29 Reading quantity 2936
introduction：IKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearings are based on the high quality given by needle roller bearings，Precision machining with unique mechanical equipment，Evaluate the quality of the latest machines，Products always maintain high performance and high quality level。]The quality of heat treatment quenching of parts is mainly determined by the quenching heating conditions and cooling conditions,The cooling conditions mainly depend on the selection of the corresponding quenching oil and cooling technology。 IKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small
2015-06-29 Reading quantity 1744
introduction： Tool head motion loading Because the tool head movement trajectory is mostly space curve,withANSYSIt is difficult to simulate such spatial curve motion directly,At present, the method used is to approach the curve piecewise with several smaller straight segments.The starting and ending points of each line segment are given corresponding coordinates,The coordinates are given as increments of relative displacement(Relative to the initial position of the tool head),And each coordinate point corresponds to a time point,This can complete the simulation of the tool head movement trajectory。 When forming square box pieces，Tool head displacement trajectory loading。theX、Y、ZDirectional bit
2015-06-29 Reading quantity 3026
introduction：A-B Aaxis Ashaft ACL ASCIICutter file ACL/BCL Generation ACL/BCL builder Action Mode Activation mode Activation Range Automatic feed range Add Arcs Add arc Add Ranges Increase cutting range Add To List Add to list ADDED STOCK Increased margin Adding a post
2015-06-29 Reading quantity 2952
introduction：usual，Operating temperature at150℃The bearings used above[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。]Called high temperature bearing。Due to chromium bearing steel in use temperature exceeds150℃~Cwhen，Its hardness will drop sharply，Dimensional instability，And cause the bearing to not work normally。So for the operating temperature at150℃~E～250℃article
2015-06-29 Reading quantity 1585
introduction：Without understanding this situation, excessive improvement in the accuracy of the mounting surface will increase the overall manufacturing cost。
2015-06-29 Reading quantity 18150
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
2015-06-29 Reading quantity 1591
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