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introduction：1、standard：punch 2、Fixed plate：Part clearance with punch is0.005~0.01 3、Guide plate（Riveting plate）：Fit clearance with punch0.005~0.01 4、Die MOBS punch and blanking die holes and punch matching clearance0.03±0.004，Shape and concave template fit clearance0~0.005 5、Clearance between guide post and guide bush0.007~0.01 6、Machining difference indicates： Shaft of length hole 0.0000±0.002+0.005-0+0-0.005 0.000±0.005+
2015-02-09 Reading quantity 2891
introduction：Railway rolling stock bearings[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。]Bearings used in locomotives and rolling stock。Bearings on locomotives include axle box bearings、Traction motor bearing、Drive system bearing、Power plant bearings and cooling system bearings, etc，The bearings on the vehicle are mainly axle box bearings，Bus axle box multi-purpose short cylindrical roller bearing
2015-02-09 Reading quantity 1458
introduction：The electric forklift consists of two major systems The driving system is one of the key components of electric forklift truck。There are great differences in the structure of the drive system of various forklifts，There are also differences in the form of single motor arrangement。Because it is double motor drive，Good acceleration and climbing performance，High traction，Electronic speed adjusting system is adopted，Replace the original mechanical differential system，Usability has been greatly improved。 The rapid development of electric forklifts is mainly due to the continuous progress of various manufacturers。Most of the products have a streamlined design，More beautiful shape。Electric balance forklift is DC power supply
2015-02-09 Reading quantity 2804
introduction：Man-machine interface(HCI)Design touches many areas of computer science。In the past traditional application software system design，The human-machine interface is becoming more and more important，So the evaluation of a system depends more on its human-machine interface than on its functionality。Over the years，Man-machine communication has been limited to text mode，This severely limits peoples communication skills，The communication efficiency is greatly reduced。In recent years, the emergence of multimedia technology provides the possibility for the full use of human communication skills in human-computer interaction,It brings hope for building a friendly human-machine interface。But multimedia information、Multimodal communication
2015-02-09 Reading quantity 2803
introduction：Impact 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。]What are the main factors of vibration？ The steel degree determined by the design parameters of the bearing structure，compliance，Quality，The vibration system composed of damping and so on will produce vibration which is suitable to its mechanics under running conditions。 Vibration caused by deviations in manufacturing processes，The smaller the deviation，The smaller the vibration
2015-02-09 Reading quantity 1461
introduction： whenKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，Instead, fill the inner and outer raceways with rolling elements。And most small and medium-sizedKOYORolling bearings are equipped with retainers。 inKOYOBearing in the processing process，The outer ring of the bearing、Inner ring、How do the roller and cage fit together。]When turning，KOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage
2015-02-09 Reading quantity 1462
introduction：Beryllium bronze is a precipitation-hardening alloy with a wide range of applications。After solution and aging treatment，Strength up to1250-1500MPa(1250-1500kilogram)。Its heat treatment characteristics are：It has good plasticity after solution treatment，It can be deformed by cold working。But after aging treatment，But it has a very good elastic limit，Simultaneous hardness、The strength is also increased。 （1） Solution treatment of beryllium bronze General solution treatment heating temperature in780-820℃among，For materials used as elastic components，adopt760-780℃，It is mainly to prevent the coarse grain from affecting the strength。
2015-02-09 Reading quantity 1455
introduction：jigou ziyoudu Freedom of mechanism freedom in mechanism The mechanism has the number of independent movements that must be given to determine the movement。figure[Freedom of planar mechanism]It is a planar hinge four-bar mechanism,Equivalent member2According to the given angular displacement rule2＝2()During exercise,The motion of the remaining components is then determined，Therefore, the degree of freedom of this institution is1。component2It is the part of the organization that receives independent movement from the outside world，An active part called a mechanism，The remaining members are called the slave members。To make the mechanism have definite motion，The number of active parts of the mechanism should be equal to its self
2015-02-09 Reading quantity 2820
introduction： one， INAImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]Selection stage，There are many factors to consider（case：load，hardness，Operating environment），Well.INAImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing
2015-02-09 Reading quantity 1473
introduction： knowUPSPower source UPSThe full name isUninterruptible Power System，The uninterruptible power supply。UPSIt is a kind of inverter as the main component、Stable voltage and frequency output computer power protection equipment。It can solve the blackouts of existing power、undervoltage、High voltage、surge、Noise and other phenomena，Make our computer systems and networks run more stable and secure。 UPSRole of power supply UPSWhat can be done for campus networks？As one of computer peripherals，Especially the campus
2015-02-09 Reading quantity 2964
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