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introduction：Reducer operation： one、The principle and function of the reducer 1.The reducer refers to an independent closed transmission device between the prime mover and the working machine。In addition，The reducer is also a power transmission mechanism，Speed converters using gears，Slow down the rotation of the motor to the desired number of revolutions，And get a larger torque mechanism。Reduce speed and increase output torque，Torque output ratio By motor output multiplied by deceleration ratio，But be careful not to exceed the rated torque of the reducer。 2.The function of the reducer is to slow down and increase the torque，This function is entirely dependent on gears and gears The meshing between them is complete，than
2015-04-02 Reading quantity 2789
introduction： Apply： The principle of enzyme activity detection is used，Organophosphorus detection、Amino acid fats and other substances on the destruction of enzymes，Therefore, it is widely used in the field of rapid detection of pesticide residues。It can also be used in food、Water quality、Soil and other tests。 Detection principle and characteristics： Principle of visible light spectrophotometer The grating is used as dispersion element，The wavelength is continuously adjustable，Small error Not only can absorbance/transmissivity/Concentration measurement，Dynamic measurements are also available、Scanning test and other functions Automatic gain（AutomationGai
2015-04-02 Reading quantity 2812
introduction： Grade of steel Height reduction （） The upsetting pressure is measured p/MPa Mean equivalent strain εm Mean resistance to deformation σm/MPa Constraint coefficient c steel10 30 830 0.41 560 1.48 60
2015-04-02 Reading quantity 2789
introduction： 1．Vernier calipers When using a simple line measuring tool（Like a scale）When making measurements，Require accuracy to1/10Scaling is quite difficult，Mainly because of the human eyes ability to distinguish。To increase the accuracy of the reading，It can be solved by mechanical subdivision。The principle of vernier caliper is actually the principle of vernier line subdivision，It is usually used in production workshops where measurement accuracy is not required，As in 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
2015-04-02 Reading quantity 1540
introduction：First determine the type of encoder，Is it absolute or incremental（Different uses）；Reconfirmation resolution；Then select the signal output mode，There areTTLexportation，Voltage output，Line drive output, etc；Also select the highest RPM、appearance、Installation mode、Operating ambient temperature、Class of protection。
2015-04-02 Reading quantity 2957
introduction：Correct installation of planetary cycloidal pinwheel reducer，Use and maintain reducer，It is an important link to ensure the normal operation of mechanical equipment。therefore，Install the planetary cycloidal pin wheel reducer，Please strictly follow the installation and use instructions below，Assemble and use carefully。 First step Verify that the motor and reducer are intact before installation，And strictly check whether the dimensions of the parts connected with the motor and the reducer match，Here is the positioning boss of the motor、Input shaft and reducer groove size and matching tolerance。 The second step Unscrew the dust hole on the outside of the reducer flange，adjustPCSSystem clamp
2015-04-02 Reading quantity 2930
introduction：In recent years，The whole development speed of the domestic reducer market is slow，Except for the bad economy，Mainly, the development of the industry market is not on a benign track，Be stuck in“Price war”Vicious cycle。below，General Motors and everyone together to discuss the next reducer market how to get rid of“Price war”。 According to industry analysts，At present, the following problems generally exist in Chinas reducer market，First, the phenomenon of product homogeneity is serious,Between enterprises in product type、The competitive advantage in quality is not obvious，Turn to hit“Price war”，It directly leads to vicious competition in the industry；Second, the industrial chain is short and fragile，And there is a lack of correlation between the front and back industrial chains
2015-04-02 Reading quantity 2890
introduction：The cooling capacity of the machine is obtained by the principle that the temperature of the gas is reduced by the output of mechanical work during the expansion and depressurization of the compressed gas。Expander is often used in cryogenic equipment。Expander is divided into piston expander and turbine expander according to movement form and structure。Piston expander is mainly suitable for small and medium-sized high with high pressure ratio and small flow rate、Medium pressure deep low temperature equipment。Turbine expander compared to piston expander，Have a large flow、Simple structure、Small size、High efficiency and long operating cycle，Suitable for large and medium-sized cryogenic equipment。 Working process diagram1 [Zaivin-entropy(-)Isentropic expansion is shown on the graph
2015-04-02 Reading quantity 2806
introduction： Make use of XRay orγThe difference in intensity attenuation of rays as they pass through different parts of the subject﹐A nondestructive testing method for detecting defects in an object。 principle The thickness or density of each part of the object to be measured varies depending on the presence of defects。whenXRay orγWhen the ray penetrates the subject﹐The extent to which the rays are absorbed will also vary。If the original intensity of the ray isI 0﹐The absorption coefficient through line is The material to the distance after﹐The strength decays toI ﹐Qiguan
2015-04-02 Reading quantity 2882
introduction： induction machine Induction machine horseshoe magnet A horseshoe magnet magnetic field Magnetic field eddy current vortex right-hand rule Right-hand rule left-hand rule Left hand rule slip Slip rate induction motor Induction motor rotating magnetic field Rotating magnetic field
2015-04-02 Reading quantity 2877
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