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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 1464
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 1559
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 2823
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 1547
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 2869
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 2789
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 2883
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 2794
introduction：Semiconductor cooler in the case of power，The two plates will produce a certain temperature difference，It is its condensing surface that people useCPUProvide a low temperature environment。However, most of the refrigeration tablets sold on the market are industrial supplies，Not specifically for computersCPUDesigned to dissipate heat。Such products generally consume more power，The power consumption of smaller industrial refrigeration tablets commonly found on the market is12V3A，There are usually only two power leads and no plastic card connector for the computer，Cooling is very effective，Be used on...CPUMore than enough。But pay attention to whether your power supply is affordable when using it。 though
2015-01-10 Reading quantity 2806
introduction： Standard number Standard Chinese name Standard English name GB/T13930-1992 Water ring vacuum pump and water ring compressor gas determination method Methods for the measurement of volume flow of g
2015-01-10 Reading quantity 2929
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