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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 of case .Normal form Several methods for mounting bearing boxes with clasp rings and fixing plates。 Mounting bearings with positioning screws will cause deformation of the bearing jacket，Should try to avoid。 .Flange type Install flanged linear bearings[Linear bearing:Metal linear bearings are a low cost
2015-01-10 Reading quantity 1488
introduction：Current，In the field of sheet metal stamping，CNC turret punch is fast for its stamping speed、High machining precision、The mold has strong versatility、Products are flexible and diverse，Be widely used。CNC turret punch used in the mold，Because of its high precision and quality requirements，Fast stamping speed，General direct selection of domestic and foreign professional manufacturers such as the United StatesMATE（figure1）、Beijing Zhaowei、Guangzhou Qitai and other products，Its specification series is complete，Strong versatility，And can well meet the special needs of users。 After the user chooses a certain quality mold，The level of its use and maintenance，It directly affects the processing quality and quality of the workpiece
2015-01-10 Reading quantity 2900
introduction： 1、Cage sound“Hey, hey……”： Cause analysis：Vibrate by retainer and rolling body、Impact generation，Can be produced regardless of the type of grease，Bearing moment、It is more likely to occur when the load or radial clearance is large。 solution：A、Improve retainer precision；B、Choose one with a small clearanceTIMKENbearing[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 the other parts are
2015-01-10 Reading quantity 1459
introduction：The common faults of hydraulic torque converter are mainly：Excessive oil temperature、The oil supply pressure is too low、Oil leakage、The machine is traveling too slowly or too weakly，And abnormal internal noise during work5Kind of。 1、Excessive oil temperature The oil temperature is too high as the oil temperature gauge exceeds when the machine is working120°COr touch the hand to feel the soup hand，There are several reasons for this：Transmission oil level is too low；The water level in the cooling system is too low；Tubing and coolers are clogged or too dirty；The torque converter works too long in the low efficiency range；The fastening screw of the work wheel is loose；bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）At the chance
2015-01-10 Reading quantity 1548
introduction：Mechanical gain The ratio of load to driving force in a machine﹐It represents the degree of mechanical enhancement。The lever is the simplest labor-saving device(See picture Mechanical gain diagram )﹐Is the fulcrum﹐P Represents the force acting on a point﹐W Its a load on a point。When the lever is in equilibrium﹐If friction is not considered, it can be obtained according to the torque balance relationship Mechanical gain=W /P =bf/ cf evident﹐The smaller the distance between the point and the fulcrum, the less effort。Using this principle can be made into many lifting equipment﹐The winch is one of them。The radius is...R The wheel and the drum of radius are fixed on the rotating shaft。Applied forceP
2015-01-10 Reading quantity 2817
introduction： First handFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]Rinse in gasoline，Wipe away any mud and dust that remains on the bearing，All rusty bearings are gently wiped and polished with metallographic sandpaper，Until there is no rough feeling in the hand。 Second, wipe the cleaned bearing dry with a dry rag，Then soak in anti-rust oil。In the process，Military commanderFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And bearing
2015-01-10 Reading quantity 1538
introduction：Length-diameter ratio for deep hole machining(Immediate hole depthLAnd aperturedRatio of)Greater than5～10Hole of...。A regular deep holeL/d<5～20,The twist drill can be long and processed after being long，towardsL/d>20～100The extra deep holes must be in special equipment、Special deep hole machine tools and deep hole tools for processing。In deep hole machining, the hole is semi-closed，The inherent difficulty is：Chip breaking、Chip removal difficulty，Thermal conductivity difference、Cooling lubrication is not easy，There will also be poor tool rigidity、Quiver easily、Vibration、Deformation, fracture, etc。GermanyBotekThe company with its strong research and development capabilities and long-term accumulation of rich experience，developed
2015-01-10 Reading quantity 2857
introduction：one、Generation and conduction of cutting heat The metal being cut is under the action of a tool，Work loss due to elastic and plastic deformation，This is an important source of cutting heat。In addition，Chip and front cutter face、Friction between the workpiece and the back tool face also consumes work，It also produces a lot of heat。therefore，There are three heating zones during cutting，Shear plane、Chip contact area with front cutter surface、Contact area between the back cutter face and the transition surface，As illustrated，Three heating zones correspond to three deformation zones。therefore，The source of cutting heat is chip deformation work and front、Frictional work on the back surface。 two、Measurement of cutting temperature Although the cutting heat is the cutting temperature
2015-01-10 Reading quantity 2784
introduction：The refrigerated dryer adopts the working principle of cooling and condensation，Mainly by heat exchange system、The refrigeration system and the electrical control system are composed of three parts。Compressed air first enters the precooler for gas-Qi or Qi-Heat exchange of water，deheat，Then it goes into the hot and cold air exchanger，Exchange heat with cold air that has been cooled to the pressure dew point from the evaporator，The temperature of the compressed air is further reduced。The compressed air then enters the evaporator，Heat exchange with refrigerant，The temperature of the compressed air drops to0-8℃，Water in the air is precipitated at this temperature，After separation by air water separator，Through the automatic drain
2015-01-10 Reading quantity 2871
introduction： High pressure airless spraying efficiency，Fine and smooth surface，Strong adhesion，Paint loss less and get construction machinery boats Widely used in furniture and other industries。 High pressure airless spray machine is divided into pneumatic airless spray machine，Electric airless sprayer（Plunger pump）And electric airless sprayer（Diaphragm pump），The use of pneumatic airless sprayer is limited because it requires a compressed air source。 Now only the electric plunger airless spray machine is compared with the electric diaphragm airless spray machine，The plunger pump is to drive the direct current motor to move the plunger to inhale the paint，After pressure
2015-01-10 Reading quantity 2787
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