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introduction：1、Main shaft 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。]Precautions for installation and commissioning （1）Installation and commissioning of individual bearings When assembling, the eccentricity of spindle positioning hole and spindle diameter and the eccentricity of bearing inner ring and raceway should be close to each other as much as possible，And turn it in the opposite direction，This reduces the eccentricity after assembly。 （2）
2015-06-28 Reading quantity 1544
introduction： 1.Shoulder fixation 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 inner ring is fixed axially by the shoulder and interference。 Suitable for support structures with fixed ends。 Simple structure、Small profile size。 2.Elastic retaining ring fixed The bearing inner ring is axially oriented by the shaft shoulder and locking nut
2015-06-28 Reading quantity 1780
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 the1876Otto the German﹐N.A.After the invention of 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 German engineer Wankel﹐F.This was achieved only after a breakthrough in sealing technology。Alien to1957The first rotary piston engine was built﹐Some call it a Wankel engine。Its been modified.
2015-06-28 Reading quantity 2941
introduction： Use sand belt﹑Abrasive cloth(paper)A woodworking machine that sands the surface of the workpiece。Woodworking sander is divided into drum type﹑Belt and disk3class。 Drum type wood sander Use winding emery cloth(paper)The roller sanded the wood﹐There are single roll and multiple roll。In addition to rotation, the drum can also be used for axial reciprocating movement during processing﹐To reduce the surface roughness of the workpiece。Single-roll sander mostly uses manual feeding﹐Multi-roll workpieces are fed by press rolls and up and down feed rolls or conveyor belts。This type of sander is suitable for sheet metal﹑timber﹑Split plate﹑plywood﹑Particleboard and fiber
2015-06-28 Reading quantity 2917
introduction：jiaoxiao ream reaming A thin layer of metal is removed from the machined hole wall using a reamer，For precise aperture and geometry as well as low surface roughness machining。Reamer is usually drilled、After reaming or boring，For machining precision cylindrical and cone holes，The machining aperture range is generally3～100millimeter。Because the cutting edge of the reamer is long，Each cutter tooth participates in cutting at the same time when reaming，High production efficiency，It is widely used in the finishing of holes。 The working mode of reaming is generally the workpiece does not move，The reamer rotates and feeds axially into the hole。Hinged on a lathe
2015-06-27 Reading quantity 2894
introduction： 【keyword】：Powder metallurgy;Toothed pulley 【Abstract】：The structure and performance characteristics of powder metallurgy timing gear for automobile are discussed、Key points of mold design、Material selection, production process and use effect。Practice proves:The mold structure is reasonable,Easy to use and reliable,Simple process。At present, the product has been mass-produced,Stable quality,It replaces imported products。 1 introduction Powder metallurgy as a unique part manufacturing technology,Because its products are few、non-cutting,Low cost,High efficiency,More and more attention by design and manufacturing personnel。Especially in recent decades,The rapid development of the automobile industry,drive
2015-06-27 Reading quantity 2923
introduction：How to add the amount of worm gear reducer oil。How to add fuel to everything，How much to add？Encounter a lot of users are not clear worm gear reducer oil amount to add how much to be suitable，Under what circumstances should worm gear reducer oil be added，Some users do not even know whether to measure the amount of oil in the stopped state or in the running state。The following Shanghai Zhenwei reducer briefly introduces the precautions for adding the amount of worm-gear reducer oil。 When judging the amount of oil in the operating state of the worm gear reducer, the gap with the actual amount of oil is relatively large，It is recommended to measure the amount of oil and add the appropriate amount of worm gear reducer oil when the reducer is stopped
2015-06-27 Reading quantity 2963
introduction： SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]Whether the installation is correct，Affect the accuracy、Life span、property。therefore，The design and assembly department should fully study the installation of bearings，Install in accordance with operating standards。 below
2015-06-27 Reading quantity 1684
introduction： 1.Materials GCr15 GCr18Mo （SKF－24） 0.90~1.05%C、1.65~1.95%Cr、0.15~0.25%Mo、0.20~0.40%Mn 2.HTtechnology 230～240℃×3.5h 100％BL Isothermal quenching Not usedBL＋Mreason：↑αk、Prevent ring brittle break ↑Surface compressive stress Prevent interference assembly from cracking ↓Quenching deformation Simple process（untempered） 3.equipment Automatic production line Base turning
2015-06-27 Reading quantity 1567
introduction： The driving reducer of the belt conveyor often encounters the case that the input shaft of some driving reducer is broken in use,To the users production caused a certain impact。When the shaft is broken, only the input shaft is usually broken，The output shaft is rarely broken。In serious cases, the input shaft will be broken one after another on several belt conveyors。This can happen if all the speed reducers that have broken shafts are from the same belt conveyor supplier。When the shaft is broken, the stubble at the fracture of the shaft after the shaft is broken is generally more level，The section is generally perpendicular to the length of the axis。Shaft breakage occurs on both belt conveyors on mobile machinery and ground belt conveyors
2015-06-27 Reading quantity 3022
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