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introduction： one、Lubrication characteristics of compressor 1、summarize A gas compressor is a power device that converts mechanical energy into gas pressure energy，Often used in pneumatic tools to provide gas power，In petrochemical、Drilling and production、Pressure oxygen is also commonly used in metallurgy and other industries、hydrogen、ammonia、Natural gas、Coke oven gas、Inert gas and other media。 Compressors can be divided into low pressure compressors according to different exhaust pressure—Exhaust pressure less than1.0MPa；Medium pressure compressor—Exhaust pressure1.0-10MPa；High pressure compressor—Exhaust pressure10-100MPa；Ultra-high pressure compression
2014-12-17 Reading quantity 3086
introduction：At present，The level of cutting processing and tool technology in China is relatively backward with that of industrial developed countries20years，Close the gap，The efforts of the tool industry alone are not enough，There must also be user industries to increase investment in tools，Make full use of the tool in the lift rate、Reduce cost、Shorten the delivery time、Accelerate the role of new product development。Foreign data show that，The tool accounted for the manufacturing cost is2.5%～4%，But it has a direct impact on manufacturing costs20%The machine tool cost and38%Labor cost，therefore，Feed speed and cutting speed each increase15%～20%Can reduce manufacturing costs10%～15%。As stated
2014-12-17 Reading quantity 3000
introduction：First section rolling 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。]Basic structure of By plain 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 are opposite each other on the shaft
2014-12-17 Reading quantity 1766
introduction：Recently learned from the China General Machinery Industry Association reducer branch，With the further increase of national infrastructure construction，In recent years, Chinas reducer industry has developed rapidly。Expert prediction，“The 12th Five-Year Plan”period，Due to the development of the countrys overall economy，The growth rate of the total economic volume of the reducer industry will still reach double digits。 The development of reducer in our country has been recent50History of the year，It is widely used in various fields of national economy and national defense industry。The product has been from the initial single cycloidal reducer，Developed to now five categories of products，Cycloidal reducer、Continuously variable transmission、Gear reducer、Worm gear reducer、electricity
2014-12-17 Reading quantity 3014
introduction： 1、ⅠAssembly and adjustment of shaft shaftⅠIts driven directly by the belt wheel，It is equipped to achieve positive rotation，Reverse the motion of the two sets of gears。Pull the pull rod by manipulating the handle，Drive spline sleeve to press respectively，The opposite sides of the friction plate to achieve positive，reversal。Principal axisⅠAlso clutch。Axle mountedⅠThe eccentric sleeve drives the plunger pump through the crank to lubricate the key parts of the box。shaftⅠThe structure is shown in the figure 1-1。 Because axisⅠThere are many parts on it，Assembly is also cumbersome，So the axisⅠAfter assembly，Then the main axle box is assembled in the main assembly。 （1）、Preparatory work
2014-12-17 Reading quantity 1787
introduction： Rock drilling trolley is also called“Drilling trolley”，Its a rock drilling device，Mainly used for tunnel construction。Our company1993Introduced the firstNH178Rock drilling rig，The car has hydraulic control、Gas path control、Circuit control、Waterway control、The system is complex and so on，It plays a key role in tunnel operations。This paper combines work practice，itNH178The failure causes of hydraulic system of drilling truck are analyzed。NH178The hydraulic system of the car is faulty，According to the cause of failure can be divided into：Early failure，Serviceability faults and faults caused by improper selection of oil materials；According to the fault phenomenon can be divided into：System runaway
2014-12-17 Reading quantity 2951
introduction：Sometimes it may be because of busy work，Engraving machine maintenance is not timely，The spindle motor rusts easily，Slight rust does not affect the normal use of the spindle motor，But if left untreated for a long time，It will shorten the life of the spindle motor。
2014-12-17 Reading quantity 17692
introduction：The color layer name represents the line width of the meaning line red1ZxAxis point line0.13 1ZbPeripheral dimensions solid line0.13 1bFigure size solid line0.13 1TcColumn filling&nb
2014-12-17 Reading quantity 3061
introduction： High performance plasticsIKOBearings are often processed from self-lubricating modified engineering plastics，plasticIKOThe friction coefficient of the bearing during operation directly affects the sizeIKOThe service life of the bearing and the size of the driving force required，And directly lead to the working temperature of equipment and instruments，thereforeIKObearing[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，Bring down
2014-12-17 Reading quantity 1678
introduction：Rail oil is made from a highly refined paraffin base oil、And selected anti-emulsification additives configuration。The rail lubricating oil also prevents sticking，At the same time, it has good thermal stability，Strong adhesion，Can effectively prevent wear and corrosion。
2014-12-17 Reading quantity 22341
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