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introduction：The development of automobile technology largely depends on the development of experimental technology。Domestic and foreign technology leading automotive companies have advanced test technology and complete test facilities，In particular, it has an engine laboratory composed of a considerable number of test benches。 The engine test index is numerous Engine test technology is an important part of automobile test technology，Its also the most complicated part。 During the engine test，It is usually carried out on a dedicated test bench，Called engine test bench，During the test, the engine is fixed by some special connection devices
2015-06-12 Reading quantity 2871
introduction：CNC lathe and ordinary lathe machining object structure and technology have great similarities，But because the numerical control system also exists,There is also a big difference.Compared with ordinary lathes，CNC lathes have the following features： 1、The CNC lathe uses a closed guard to prevent chips or cutting fluid from flying out，Cause accidental injury to the operator。 2、Most of the CNC lathes with automatic chip removal are laid out with inclined bed structure，Easy chip removal，Easy to use automatic chip removal machine。 3、High spindle speed，Workpiece clamping is safe and reliable。Numerical control machine
2015-06-12 Reading quantity 2966
introduction： Operation one：Round head keyway Just a straight line command Use point——pointillism Pull out and return to the starting point It turns into a tangent arc when its pulled out，If the direction is wrong, go back to the starting point and pull out again，If you do not need the arc pressAThe key stops and returns to a straight line
2015-06-12 Reading quantity 2931
introduction：S safe chamber (of liquid-inglass thermometer),（glass-thermometer）Safety bubble safeguard of ultratemperature,Overtemperature protection device safety hardware,Security hardware safety protection device,Safety protection device safety standard,Safety standard sales package,Sales package sali
2015-06-12 Reading quantity 2876
introduction：Size limitation。usualINAbearing[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 space that can be installed is limited。In most cases，Shaft diameter(Or bearing bore diameter)Is based on mechanical design or other design limitations。Therefore, the choice of bearing type and size is determined by the inner diameter of the universal joint bearing。therefrom，Dimension axis
2015-06-11 Reading quantity 1635
introduction：After mold installation and debugging，Can normally produce qualified workpiece，This process is called die service。 In general，We always want molds to last long enough Time limit，To meet the actual needs of production。 However, the mold may have some defects during the manufacturing process，Or some defect gradually developed in the course of service，microcrack、Light wear、Deformation and so on，In this case, although the mold has hidden dangers, it can continue to work，This state, which has defects but does not lose the ability to serve, is called mold damage。 The mold is damaged for some reason，Or mold damage accumulated to a certain extent resulting in mold
2015-06-11 Reading quantity 2873
introduction：Failure forms of worm drive and gear drive（Gear reducer）likeness，There is also pitting on the tooth surface、wear、Gluing and breaking of worm gear teeth and other forms。Among them, the pitting corrosion and wear of wormwheel tooth surface are the most common，Gluing also occurs。The above failure occurred，The main reason is that the relative sliding speed between the meshing tooth surfaces is large，Especially in cylindrical worm drive lubrication Angle8Too small，Cant form a dynamic oil film，Caused by low gnawing efficiency and high temperature rise。In addition, due to the insufficient stiffness of worm or manufacturing and installation errors and other factors will also lead to the occurrence of the above failure forms。The fracture of worm gear teeth is mostly due to the wear of the gear teeth
2015-06-11 Reading quantity 2894
introduction：■ Type of reducer The general reducer has helical gear reducer(Includes parallel shaft helical gear reducer、Worm gear reducer、Bevel gear reducer And so on)、Planetary gear reducer、Cycloidal pin gear reducer、Worm gear reducer、Planetary friction mechanical stepless Speed machine, etc. ■ Common types of reducer 1） The main feature of worm gear reducer is that it has reverse self-locking function，Can have a large deceleration ratio，Input axis sum The output axes are not on the same axis，Its not on the same plane。But it is generally larger，Transmission efficiency is not high，precision Not tall。 2）Harmonic reducer harmonics
2015-06-11 Reading quantity 2865
introduction：jidishi tiaojie yibiao Ground-based regulating instrument local-mounted controller Utilization instruction、A regulating instrument that records the action of the mechanism and drives the regulating part to send a control signal。It puts the detection、indicate、Records、The program and adjustment parts are housed in the same housing，Form a whole，Generally installed on site，Suitable for single parameter automatic adjustment system。The regulating parts in the ground type regulating instrument are electric、Pneumatic two classes，Respectively output electrical signals and gas signals，Control the corresponding actuator。It mainly has the detection function
2015-06-11 Reading quantity 2868
introduction： Main use： Local host、Auxiliary engine、The electric control box consists of three parts，With wind selection、screenless、netless、Uniform particle size and other properties，The production process is continuous。The machine has reached the international advanced level，Widely used in pharmaceutical industry、Chemical engineering、Food and other industrial materials crushing。 Working principle： The material enters the crushing chamber from the hopper through the screw conveyor，It is cut and shredded by a high-speed rotating blade，The material is transported into the cyclone by the method of negative pressure air transport、Bag type dust collector，Discharge material to meet product requirements。 Technical parameter：
2015-06-11 Reading quantity 2869
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