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introduction：SBPinwheel cycloidal reducer is a kind of transmission device redesigned on the basis of the cycloidal pinwheel reducer，Cycloidal reducer is widely used in petroleum、Chemical engineering、Light industry、spin、food、plastic、pharmacy、ceramic、Printing and dyeing、metallurgy、mine、tobacco、papermaking、tanning、carpenter、Electronic instrument、glass、Environmental protection and other transmission lines、Assembly line、In the field of machinery and equipment，SBThe structure and characteristics of pinwheel cycloidal reducer are as follows： one、SBThe pin-wheel cycloidal reducer adopts a pin-gear that engages simultaneously with an internal cycloidal wheel and an external cycloidal wheel，Achieve deceleration drive，It eliminates the necessity of ordinary cycloidal pin wheel reducer
2015-01-12 Reading quantity 2889
introduction： Low voltage general frequency conversion output voltage is380～650V，Output power is0.75～400kW，Operating frequency is0～400Hz，Its main circuits are all alternating-straight-Alternating current circuit。 Common control mode in frequency converter： 1 Non-intelligent control mode The non-intelligent control methods used in AC frequency converters areV/fCoordinated control、Slip frequency control、Vector control、Direct torque control, etc。 (1) V/fSinusoidal pulse width modulation（SPWM）Control mode
2015-01-12 Reading quantity 2920
introduction： Using the grinding wheel as a grinding tool to process cylindrical gear or some gear machining tool tooth surface gear machining machine。It is mainly used to eliminate deformation after heat treatment and improve gear accuracy﹐The precision of grinding teeth can reach 6～3level(JB179-83)Or higher。 19End of Century﹐For grinding gear shaper cutter﹐In the United States created a large surface grinding wheel gear grinding machine。20The beginning of the century﹐With the development of the automobile industry﹐Germany developed cone grinding wheel gear grinding machine﹐The United States adopts formed grinding wheel to grind automobile gear。1914years﹐To improve gear accuracy﹐Disc grinding wheel gear grinding machine made in Switzerland﹐Take compensation
2015-01-12 Reading quantity 2807
introduction：Aerobic treatment technology in municipal wastewater、Industrial wastewater treatment has been widely used，The main treatment forms are activated sludge and biofilm，Biofilm method is used to develop biofilters、Biological turntable、Biological contact oxidation and biological fluidized bed。My company in years of engineering design and actual operation，According to the characteristics of printing and dyeing wastewater——High pollutant concentration、High chroma、PHThe range of value change is large，Developed suitable for such wastewater treatment、Aerobic treatment process with its own characteristics——Biological contact oxidation method。 one、Reaction mechanism of biological contact oxidation method Biological contact oxidation is a kind of intermediate active pollution
2015-01-12 Reading quantity 2897
introduction：1 Electromagnetic current（voltage）Check and adjust relays 1.1 In addition to routine tests，Also need to carry out the following aspects of inspection and adjustment。 （1）Check that the fixing screws of the contact bridge and coil spring on the shaft are tightened。 （2）Check the longitudinal and transverse range of motion of the shaft，This scope should be0.2～0.3mm。 （3）After relay operation，ZThe bar and the upper and lower magnetic poles should be kept not less than0.3mmThe gap between。 （4）Check the contact of the relay for burn marks and uncleanliness，The Angle at which the contact bridge meets the static contact shall be55～65The degree of，
2015-01-12 Reading quantity 2906
introduction：Program according to the time sequence or logical relationship specified in the production process，A device that controls each stage of the production process in turn，Its called the compliance controller。The control mode of sequence controller has two kinds: sequence control and condition control。①Sequential control：Control according to a predetermined time series，That is, the steps of an action are only a function of time。②Conditional control：Control according to predetermined logical relationships。This control can either be carried out progressively in a predetermined sequence，That is, after the previous step is complete, go to the next step；It is also possible to determine the actions to be performed in the next stage according to the combined results of several actions。prime，Sequence control
2015-01-12 Reading quantity 2911
introduction：Pressure ball 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。]There are one-way and two-way，Unidirectional pressure ball bearings are equipped with steel balls between a set of raceway rings，Average contact Angle90°，Can only withstand unidirectional axial load，Not suitable for high speed rotation。Such bearings can be separated into three pieces，Both spacers have deep circular grooves for ball rolling
2015-01-12 Reading quantity 1472
introduction：Solution measure：Increase the strength of the gear，Manufacturing accuracy of gears，Reduce roughness values of gears and shafts。 Improve the installation accuracy and fastness of driven gears and shafts，The most important thing is to achieve a reasonable interference fit
2015-01-12 Reading quantity 2886
introduction： Precision positioning tableTUIs a kind ofUThe inner side of the zigzag slide rail is provided with a sliding table，Compact and small positioning table。Sliding table and linear guide rail are integrated structures，Two rows of large diameter steel balls and rails are used４Point contact structure，Therefore, it can maintain stable precision and rigidity when used for loads and composite loads with variable direction and size。In addition，adoptUZigzag rail，The anti-torque and torque rigidity of the slide rail are greatly improved。 Precision positioning tableTUThe width of the rail from25mmto130mmThere are8Kind of，The length of the sliding table can be selected。In addition，Ball bearings are also available
2015-01-12 Reading quantity 1556
introduction：Milk receiving tank Batching tank Direct-cooled milk storage tank A new type of plate heat exchanger with buckle type non-stick pad Automatic program control tube type ultra-high temperature sterilization unit Automatic semi-automatic plate sterilization unit Installation works Colloid mill Batching tank
2015-01-12 Reading quantity 2805
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