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introduction： service，It can be optimized on the machine when the workpiece is initially positioned。hereon，The tool data set is also determined（table）And the overall length and disassembly length of the tool，These are in line with the desired configuration of the processing equipment。As for subsequent orders，The important thing is that the assembly time can be reduced，The quality of the workpiece and the service life of the tool can remain unchanged；The same is true for preparing knives。therefore，In order to set the rated length to the original specification as much as possible，The disassembly length is very important。The adjustment accuracy here is in0.1mmThe range of，The actual length can then be added by correcting the data
2015-03-31 Reading quantity 2872
introduction：Grooved wheel mechanism A unidirectional intermittent motion mechanism composed of a groove wheel and a cylindrical pin﹐Also known as the Marta Agency。It is often used to convert the continuous rotation of the driver into a one-way periodic rotation of the follower with a stop。The groove wheel mechanism has two forms of external engagement and internal engagement。The groove wheel and the rotor of the external engaging groove wheel mechanism turn opposite﹐The inner meshing is the same。Single arm outer engaging groove wheel mechanism(See picture Single arm outer engaging groove wheel mechanism )By swivel arm with cylindrical pin﹑possess4A groove wheel and a frame are composed of a radial groove。When the cylindrical pin on the continuously rotating boom enters the radial groove﹐Toggle the groove wheel over2Angle﹔When the cylindrical pin is turned out of the radial groove﹐slot
2015-03-31 Reading quantity 2868
introduction：1The dynamic characteristics of circuit breaker are simulated and analyzed，It is beneficial to realize the optimal design of circuit breaker；The operating characteristics of circuit breaker in fault state are also studied，It can provide theoretical basis for circuit breaker state detection。Study on dynamic characteristics of circuit breakers，The scheme used to be：The kinematic and dynamic equations of circuit breaker moving parts are listed；The appropriate numerical method is used to solve the equations；The motion process and parameters of moving parts are given by visual simulation method[1]。This research scheme is relatively effective for simple motor systems，Especially in low-voltage electrical mechanism motion characteristics
2015-03-31 Reading quantity 2778
introduction：Applicable model： 1、Single column calibration hydraulic press：Y41-2（PYE-2），Y41-10，Y41-10，Y41-10A（PYE-10），SF71002，Y41-25，Y41-25A（П413），PYE-25，Y41-40（П414），Y41-40A，Y41-63（PYE-63），liquid41-63，П415Y41-100（ПA417），liquid41-100A，Y41-160，Y41-160A，Y41-160B。 2、liquid
2015-03-31 Reading quantity 2872
introduction： “Double Luck”Series of complete sets of equipment using perfect cleaning equipment and“Fractional grinding、Graded screening、Impact powder、Square screen、Air extraction”The milling process。 Its outstanding feature： one、Overall plane layout，Province of infrastructure investment，Compact structure，Easy to operate、Easy maintenance，Greatly improve device stability。 two、Adopt high quality energy-saving motor，The power consumption of similar equipment is the lowest in China。 three、New type square screen，Improve the vibration in the screen
2015-03-31 Reading quantity 2788
introduction：DCSIts a decentralized control system(Distributed Control System)Be short for...，The domestic general habit is called distributed control system。It is a multilevel computer system which consists of process control level and process monitoring level and is linked by communication network，Integrated computer(Computer)、communication(Communication)、reveal(CRT)And control(Control)Etc.4Ctechnology，The basic idea is decentralized control、Centralized operation、Hierarchical management、Flexible configuration、Easy configuration。DCSHave the following characteristics： (1)Gao Ke
2015-03-31 Reading quantity 2881
introduction：neiranji zhouxi niuzhuan zhendong Torsional vibration of internal combustion engine shafting torsional vibration of engine crankshaft Internal combustion engine shafting is made of steel or ductile iron，Inherent elasticity，Have inertia，It has its own natural frequency。Under the excitation of harmonic torque，It creates a forced torsional vibration，When the frequency of the excitation torque approaches the natural frequency of the shafting,Torsional vibration amplitude increases sharply,The phenomenon of resonance occurs。Strong resonance can disrupt the normal operation of the internal combustion engine
2015-03-31 Reading quantity 2858
introduction：Water hammer water hammer Karman vortex street Karman street Bernoulli equation Bernoulli equation Laval nozzle Laval nozzle cavitation cavitation damage The Archimedes Principle Archimedes’ principle Fluid kinematics fluid kinematics Nawi－Stokes equation Navier-Stokes equation Mach number Mac
2015-03-31 Reading quantity 2872
introduction：The common forming method of powder metallurgy materials is to compress the metal powder into a rigid closed mold，Higher mold cost；Because the powder fluidity is poor，It is also affected by friction，The compact density is generally low and unevenly distributed，Low strength，thin-wall、It is difficult to form products with slender shape and variable section along the pressing direction。therefore，The following problems should be paid attention to in the design of parts structure by pressing forming。 ⑴Keep it simple、Symmetrical shape，Avoid excessive changes in section and narrow grooves、Spherical scale，To facilitate molding and compaction，As shown in the figure7.3.1As indicated。 ⑵Avoid local thin walls，Compact and prevent with casual powder
2015-03-31 Reading quantity 1417
introduction： GEC…FSASelf-lubricating radial joint 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 structure type and overall dimensions ,
2015-03-31 Reading quantity 1531
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