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introduction： Compared with general mechanical parts，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。]A part is a short, thin rotating surface，The rotary body determines that the processing machine tool is relatively simple，The vast majority are lathes and grinders；Short and thin determines its axial stiffness is good，The axial deformation is negligible，The radial stiffness is poor，The tightening method should be used during processing
2015-03-29 Reading quantity 1444
introduction：off-gear，Its when the car is moving，The gear shift lever automatically returns to neutral，Remove the sliding gear from its normal meshing position。So-called chaos，It means that the gear shift lever cannot be hung in the required gear position，Or after the shift is not into the required gear，Im going into a different gear，Making the vehicle unmaneuverable，Even have an accident。transmission Random file、Shifting gears is one of the most common failures，There is a certain connection between the two，All are due to the loose and damaged parts of the transmission，Or with the gap adjustment caused by improper。 Cause analysis： 1.Gear shift lever positioning pin worn loose、Break or lose，Get it out of control
2015-03-29 Reading quantity 2793
introduction： one、Lubrication method rollNSKbearing[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。]The lubrication is in principle with other rollsNS
2015-03-29 Reading quantity 1452
introduction： Fengye Mall clutch introduces the maintenance method of mechanical chuck for you。 In order to keep the lathe chuck normal time after use，Still has good accuracy，Lubrication is very important。Incorrect or inappropriate lubrication will cause some problems，For example, abnormal functioning at low pressure，The clamping force is weakened，Poor clamping accuracy，Abnormal wear and sticking，So the chuck must be lubricated correctly。Apply molybdenum disulfide grease at least once a day(Color is black)，Drive the grease into the chuck nozzle until the grease spills out of the chuck face or the chuck hole(Inner hole protective sleeve and connecting nut)，But if the chuck high rotation or a lot of water
2015-03-29 Reading quantity 2876
introduction：Static seal machine(Or equipment)The seal between the relative stationary parts。The common form is to place a sealing gasket between the flanges﹐This seal is called a flange gasket forced seal。Screw the bolt to press the gasket﹐It can plug the leak gap to achieve the purpose of sealing。The material and form of the gasket are based on the operating temperature of the equipment﹑Pressure and corrosive medium and other conditions are selected。At normal temperature﹑Rubber gaskets are available for medium and low voltage equipment﹐Polytetrafluoroethylene gaskets are available for equipment working at low temperatures or in corrosive working media﹐Asbestos rubber gaskets are available for equipment with higher temperatures﹐Metal gaskets are available for high temperature and high pressure equipment。Gasket type mainly has a rectangular section
2015-03-29 Reading quantity 2856
introduction：Mechanical equipment for mining and processing natural stone。There are two types of stone used in civil engineering: granular stone and massive stone。The mining machinery of loose stone is rock drill、pickaxe。Mining time，First, drill holes in the natural rock，Then the charge explodes。Commonly used are wind、Electric and internal combustion rock drill，In recent years, hydraulic rock drills have appeared。The processing of bulk stone has stone crusher and screen machine。Commonly used with jaws、Cone type、Hammer and roll crusher，And the shaker、 Rotating screen、 sifting。Large pieces of crushed stone obtained by blasting mining generally need to be broken into crushed stone by crusher，Then through the screening machine sieve into
2015-03-29 Reading quantity 2766
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。]The quality of steel used is the most stringent of all alloy steels、Steel grade with the most inspection items。The world recognized level of bearing steel is a sign of a countrys metallurgical level。With the rapid development of science and technology，Bearing steel use conditions are getting worse，Very demanding requirements are put forward for bearings。Bearing due
2015-03-29 Reading quantity 1779
introduction：The external magnetic field is used to drive the arc to rotate and heat along the workpiece，The method by which the workpiece is then welded by forging（See picture[Rotating arc welding diagram]）。Rotary arc welding is mainly used for welding pipe fittings，Place the tube to be welded in a magnetic field during welding，Power is applied after clamping with electrodes，The interaction of a radial magnetic field and a current generated by an exciting coil，The arc is rotated around the circumference of the tube wall。Uniformly heating the tube end produces a thin layer of molten metal，And then quickly pressurize，Extrusion molten metal，A welded joint is formed。Rotary arc welding is1959Soviet research success，But the welder used to perform this welding until70Age appears。Welder includes
2015-03-29 Reading quantity 2772
introduction：A rotary pump that relies on the change of working volume formed between the pump cylinder and two adjacent blades on the rotor when the eccentric rotor rotates to transport liquid or pressurize it(Sight-seeing pump)。Vane pump blades rely on centrifugal force(A spring or high pressure liquid can also be placed at the bottom of the blade)Stick to the inside surface of the pump cylinder﹐And in the rotor slot for reciprocating sliding(See picture Slide pump diagram )。Rotor time﹐The working volume between two adjacent blades on the suction cavity side increases gradually﹐Pressure reduction﹐The liquid enters the working volume under the action of pressure difference。Working volume through a transition zone(Refers to the working volume is not connected with the suction cavity and the discharge cavity of the section)Taper off﹐And drain the liquid
2015-03-29 Reading quantity 2790
introduction： Outer spherical bearing with seat[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。]Due to the different use environment，So erosion behaves differently，Because the erosion is different。Bearings, of course, can not escape this fate of erosion，Here are three ways in which bearings can be eroded。
2015-03-29 Reading quantity 1546
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