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introduction： In the use of vehicles，There are often oil leakage failures，It will directly affect the technical performance of the car，Lead oil、Waste of fuel，Power consumption，Affects the cleanliness of the car，Cause environmental pollution。Due to oil spill、The oil inside the machine is reduced，Lead to poor lubrication of parts、undercooling，It will cause early damage to the parts，Even leave a potential accident。 one、The main cause of oil leakage in common vehicles 1.Product quality、Poor material or workmanship；There are problems with the structural design。 2.Improper assembly speed，The mating surface is not clean，Gasket failure、position
2015-03-20 Reading quantity 2924
introduction：one、chipping The operation method of cutting metal with a hand hammer chisel is called chipping。Chipping is used to chisel or cut metal，To achieve the desired shape and size。 Chipping is mainly used for occasions that are not convenient for machining，Such as removing flanges、burr、Split sheet、Chisel oil grooves, etc。This method is rarely used at present。 1. chisel （1）The geometric Angle of the cutting part A chisel is the cutting part、bevel、The stalk and the head are composed of four parts，Its length is about170mmaround，diameter18～
2015-03-20 Reading quantity 2786
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。]Installation is good or not，Will affectSKFImported 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，f
2015-03-20 Reading quantity 1530
introduction： In order for the seal ring to be installed and work smoothly, there is good lubrication,Seals should be soaked or lubricated in the medium used 。At installation，The verticality of rubber parts and shafts shall comply with the provisions of the following table： 1、Oil seal to shaft perpendicularity table Diameter range of shaft(mm) 25below 25~28 80above Perpendicularity tolerance
2015-03-20 Reading quantity 1529
introduction：shaxing zhuzao Sand casting sand mold casting The mold is made from molding sand and core sand，A casting process in which liquid metal is filled with a mold under gravity to produce castings。steel、Iron and most non-ferrous alloy castings can be obtained by sand casting。Because the molding materials used in sand casting are cheap and easy to obtain，Mold manufacturing is simple，Single piece production of castings、Both mass production and mass production can be adapted，For a long time，It has always been the basic process in casting production。 The mold used in sand casting is generally composed of the outer sand mold and the core。So as to
2015-03-20 Reading quantity 2785
introduction： Installation method: 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 installation should be based on the bearing structure，The size depends on the mating nature of the bearing components，The pressure shall be applied directly to the end face of the tight fitting ring，Pressure must not be transmitted through rolling elements，Bearing installation generally adopts the following methods： a. indentation
2015-03-20 Reading quantity 1451
introduction： Large general purpose engineering simulation softwareALGORIt can help design analysts predict and test various situations in the real state，fast、Safer and more reliable design projects at low cost，Widely used in the design of various industries、Finite element analysis、Mechanical motion simulation。ALGORWith its complete analytical functions、Easy to operate and low hardware requirements，It enjoys a high reputation among scientific and technological workers engaged in design and analysis。 As high endCAEOne of the representatives of analytical tools， ALGORIn the car、corpuscle、aerospace、Medical science、Commodity production、Military affairs、Electric power system、petroleum、big
2015-03-20 Reading quantity 2877
introduction： normalTIMKENImported 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 configuration of，And the axial displacement bearing with one end is fixed，The bearing on the other side is free。Can be used for axial displacement of free bearings，It can prevent the adverse effects of thermal expansion and contraction of the shaft。There are no free-end bearings that best fit the inner ring or outer ring walls of cylindrical roller bearings。The interior design of these axes，Make internal and external measures displace in both directions
2015-03-20 Reading quantity 1562
introduction：The finishing bearing shaft is not round after grinding Possible problem：Machined with veneer，jumble，The machining size is not stable，runout。Cannot be corrected during refinement Solution measure：Replace turning support journal equipment，Change control system，The single-board machine is inspected regularly。 CAM lift is out of whack Possible problem：Die wear of machine tools，The accuracy of the mold is decreased Solution measure：Periodic inspection、trim、Replace the mold in time。When grinding the CAM surface，The method of changing the rotation direction of the workpiece is adopted，To improve the shape accuracy of CAM curve CAM base runout out Possible problem：Die wear of machine tools，by
2015-03-20 Reading quantity 1435
introduction：Remove the bearing on the return sleeve[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，The axial locking device must be secured：Locking nut、Remove the end cover。 When removing small and medium bearings，The bearing can be loosened with locking nuts and hook wrenches or impact wrenches。 The best way to remove large bearings is with hydraulic nuts。&
2015-03-20 Reading quantity 1522
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