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introduction： With the further increase of national infrastructure construction，In recent years, Chinas reducer industry has developed rapidly。According to the statistics of the speed reducer branch，Last year，The whole industry produces reducer45Ten thousand units，Realize sales revenue20Hundred million yuan，Export treaty1Hundreds of millions of dollars。Expert prediction，“The 11th Five-Year Plan”period，Due to the development of the countrys overall economy，The growth rate of the total economic volume of the reducer industry will still reach double digits。 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。The product has been from the initial single cycloidal reducer，develop
2015-04-18 Reading quantity 2799
introduction： rollSKFbearing[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。]Its a precision part.，Its use must also be carried out with corresponding care。No matter how high performance bearings are used，If used improperly，You dont get the high performance you expect。Relate toSKFThe use of bearings should be noted as follows。 one、holdSKFBearing and
2015-04-18 Reading quantity 1457
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2015-04-18 Reading quantity 2817
introduction：Plain 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。]Its face contact，Therefore, a certain oil film should be maintained between the contact surfaces，Therefore, the design should pay attention to the following problems。 1、The oil film should be able to enter the friction surface smoothly。 2、Oil should enter the bearing from the non-bearing surface area。 3、Do not leave the full ring oil groove open in
2015-04-18 Reading quantity 1572
introduction： A pair of continuously tangential curves on two members to achieve a given law of motion。The contact between curves and cusps can be seen as a special case of conjugate curves。In the gear drive, one gear pushes another gear to rotate and in the CAM mechanism, the CAM pushes the follower to move according to the required regularity﹐Its all done by relying on conjugate curves。In terms of gearing alone﹐The rotation of the required transmission ratio can be obtained by making a pair of conjugate curves of the tooth profile(Such as cylindrical gear transmission)﹐Or carry out the motion conversion between rotation and movement(Such as gear and rack drive)﹐Variable motion is also available(If not circular gear drive)Etc.。 Motion as a plane
2015-04-18 Reading quantity 2789
introduction： Four reverse software introduction one、 Imageware Imageware From the United States EDS Company produced，Is the most famous reverse engineering software，Is being widely used in cars、aviation、spaceflight、、mould、Computer parts and other design and manufacturing fields。The software has a large user base，There are... abroad BMW、Boeing、GM、Chrysler、Ford、raytheon、Toyota And other famous international companies，At home, there is Shanghai Volkswagen、Shanghai Jiaotong University、Shanghai DELPH
2015-04-18 Reading quantity 2873
introduction： electrochemistry﹑Special processing of cutting metal materials by the combined action of electric heating and mechanical force。Anode mechanical cutting method is the Soviet people in20century40epochal。figure Anode mechanical cutting principle The picture shows the principle of anode mechanical cutting。Using metal steel bands or disks as cutting tools(Material is carbon steel or brass)﹐It is connected to the negative terminal of the DC power supply as a cathode。The workpiece to be cut acts as the anode﹐Connected to the positive terminal of the DC power supply。Supply water glass at the incision during cutting(Sodium silicate)electrolyte。
2015-04-18 Reading quantity 2794
introduction：Pawn 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。]When the temperature rises，First determine whether it is a mistake，If indeed raised，The following should be done： 1、Bearing installation position is incorrect，Will cause larger ball end face withTIMKENAxial force of inner seat ring and outer seat ring stop of bearing seat，Overheat bearing。 2、operational
2015-04-18 Reading quantity 1571
introduction：blueing The steel is heated in air or immersed directly in a concentrated oxidizing solution﹐A material protection technique that produces an extremely thin oxide film on its surface﹐Also known as blackening。Bluing of steel parts can be carried out in molten salts of sodium nitrite and sodium nitrate﹐Can also be in high temperature hot air and500℃The above is carried out in superheated steam﹐It is more commonly heated in concentrated caustic soda with sodium nitrite。The composition of the solution when blue﹑The reaction temperature and time depend on the composition of the steel matrix。The bluing film is composed of magnetic iron oxide﹐The thickness is...0.5～1.5micron﹐Color is related to material composition and process conditions﹐Grayish black﹑Jet black﹑Brilliant blue。
2015-04-18 Reading quantity 2727
introduction：INAAngular 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。]There are several types of lubrication，And by modelINAAngular contact ball bearings and all typesINAAngular contact ball bearings are also different in the use of lubrication，This is more conducive toINAMaximize the service life of angular contact ball bearings，Its the nature of mechanical devices
2015-04-18 Reading quantity 1556
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