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introduction： History of heat treatment technology The hydraulic oil is formed by the vane pump to a certain pressure，Through the oil filter、Flameproof electromagnetic directional valve、Throttle valve、Hydraulically controlled check valve、The balance valve enters the lower end of the cylinder，Make the cylinder piston move upward，Lift heavy objects，The oil return at the upper end of the cylinder is returned to the oil tank through the flameproof electromagnetic directional valve，The rated pressure is adjusted by the relief valve，Observe the reading value of the pressure gauge。 The piston of the cylinder moves downward(Fall of weight)。The hydraulic oil enters the upper end of the cylinder through the explosion-proof electromagnetic directional valve，The lower end of the cylinder returns oil through the balance valve、Hydraulically controlled check valve、Throttle valve、Flameproof type electricity
2015-01-07 Reading quantity 2809
introduction： The development of reducer in our country has been recent40History of the year，It is widely used in various fields of national economy and national defense industry。According to preliminary statistics，Reducer consumption is relatively large industry mainly：Electric machinery、Metallurgical machinery、Environmental protection machinery、Electronic appliance、Road building machinery、Chemical machinery、Food machinery、Light industrial machinery、Mining machinery、Conveying machinery、Construction machinery、Building machinery、Cement machinery、Rubber machinery、Hydraulic machinery、Petroleum machinery，The number of reducer products used in these industries has accounted for the total number of reducer used in various industries in the country60%～70%。 Due to the active fiscal policy adopted by the state，pull
2015-01-07 Reading quantity 2807
introduction： Brinell hardness HB Rockwell hardness HRC Vickers hardness HV
2015-01-07 Reading quantity 2887
introduction：Induction heating surface quenching technology can not only effectively improve the surface properties of metals（Like hardness、Abrasion resistance、Corrosion resistance、Heat conduction、Conductivity etc)，With other commonly used surface treatment processes(Like carburizing、tempering、Surface nitriding, etc)Compare with，It also has the following advantages： （1）The heating rate is extremely fast，expandableAVolume transition temperature range，Reduce transition time。 （2）After quenching, the surface of the workpiece can get very fine cryptocrystalline martensite，Slightly higher hardness（2～3HRC）。Lower brittleness and higher fatigue strength。 （3）The workpiece treated by this process is not easy to oxidize and decarburize，So far as to Some workers
2015-01-07 Reading quantity 1533
introduction：Design and manufacture of rolling bearings[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，Bearing materials are generally selected according to the following principles。 one．Select according to the working conditions of the bearing 1．Operating temperature Bearings operating at normal temperature，Chrome bearing steel is used。Operating temperature above150℃Lower than250℃Chromium bearing steel is also used，But need to go through
2015-01-07 Reading quantity 1534
introduction：After the designer draws the parts，Use conditions and important material selection factors should be listed for the parts、Then choose the material reasonably。The following three steps are included： (1)Follow the purpose of the application，List all functional requirements for the component(Its not the properties of the material)，And quantify it as much as possible。Such as： ①The maximum allowable deformation under a rated continuous load； ②The type and magnitude of stress experienced during use and transportation；Whether long-term stress，Is it dynamic or static stress； ③Maximum operating temperature； ④Allowable dimensional variation at operating temperature； ⑤Allowable dimensional tolerances for parts；
2015-01-07 Reading quantity 2807
introduction： （one）use： Cycloidal pin gear reducer adopts cycloidal pin tooth meshing、Principle of planetary transmission，So its usually called a planetary cycloidal reducer，Planetary cycloidal pinwheel reducer can be widely used in oil、Environmental protection、Chemical engineering、cement、transport、spin、pharmacy、food、printing、hoisting、mine、metallurgy、unit、Power generation and other industries，As a driving or decelerating device。Its unique smooth structure can replace ordinary cylindrical gear reducer and worm gear reducer in many cases，therefore，Planetary cycloidal pin gear reducer is widely used in various industries and fields，It is generally welcomed by the majority of users。
2015-01-07 Reading quantity 2884
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]The accuracy of the degree from０Step by step increase，For general purpose0Level sufficient，But in the table used1When the condition or occasion is shown，Requires5Grade or higher accuracy。 The accuracy level above is, though
2015-01-07 Reading quantity 1623
introduction： 1 Install：TIMKENbearing[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。]Whether the installation is correct，Affect the accuracy、Life span、property。therefore，The design and assembly department should fully study the installation of bearings。therefore，When we install bearings, we must strictly follow the installation steps of bearings，To prevent damage to bearings
2015-01-07 Reading quantity 1539
introduction： one、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]Measurement specification 1.Specification of size basis The method of comparative measurement is usedSKFbearing[SKFbearing:SKFThe full name is“Svenska Ku
2015-01-07 Reading quantity 1550
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