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introduction：Planetary gear Planetary gear（Epicyclic Gearing）It is a kind of gear structure，Usually one or more external gears revolve around a central gear，Its like the planets going around the sun，Hence the name。besides，Planetary gears usually have an outer ring on the outermost part，Used to fit the orbit of the planetary gears。
2017-10-09 Reading quantity 184
introduction：Screws and nuts Im sure were all familiar with screws and nuts，Are very common parts in our lives。Currently on the market commonly used screws, The nut standard parts are mainly carbon steel、Alloy steel、Stainless steel、Copper four categories of materials. There are also other special-purpose materials，According to the level of the main pointsSUS302、SUS304、SUS316。
2017-10-09 Reading quantity 169
introduction：Garden nut Round nuts are usually used with stop washers for round nuts，Insert the inner tongue of the washer into the slot on the shaft during assembly，The outer tongue of the washer is inserted into the groove of the round nut，The nut is then locked。It is usually fixed axially as a rolling bearing。 Although round nuts have good corrosion resistance，But if exposed in a corrosive environment for a long time，Its still going to oxidize。therefore，The stainless steel surface must be cleaned and maintained regularly，In this way, it can maintain its good performance，And achieve the effect of extending the service life。What is the surface cleaning essentials of stainless steel？The following small series will give you a brief introduction to a few round nut maintenance methods。
2017-10-09 Reading quantity 188
introduction：Screw pile The screw pile adopts the structural shape of variable section，The soil at the pile side is compressed in the process of hole formation，encryption，After the pile is formed, part of the soil mass forms a thread，The soil on the side of the pile forms a nut，The thread of the pile body is closely occluded with the soil nut at the side of the pile，When the top of the pile is under load，Pile side soil of thread section“nut”Be compressed，annular“nut”The root is subjected to shear，The bearing capacity of pile has the side resistance of straight bar section（Frictional resistance），The shear strength of thread section and the bearing capacity of pile end are composed，The shear resistance of the thread section is much greater than the lateral resistance under the same conditions，The distribution law of additional stress and the requirement of stress sharing ratio and stiffness change are satisfied，The action between soil and pile is adjusted，The stress apportionment ratio and stress diffusivity of pile side s
2017-10-09 Reading quantity 160
introduction：Water stop screw There are many kinds of screws，Next, Xiaobian will take you to understand the water stop screw。Water stop screws are usually used in the pouring of basement shear walls，Fixed form，The function of controlling the thickness of concrete pouring。 Water stop screw overview And ordinary wall screw is different1、There is a water stop sheet in the middle of the water stop screw；2、When removing the mold，The ordinary through-wall screw is drawn as a whole，reuse，The water stop screw saws off the outer ends of the wall，Leave the middle section on the wall，To ensure that the walls are impervious to water。The traditional sealing screw has a one-section structure，Usually the whole screw，The middle is welded with a water stop or the sleeve is equipped with an expansion water stop ring，To stop water from penetrating the basement walls。To save steel，A new type of water stop screw has appeared on the market，From a one-stage structure to a three-stage structure，Also called three-stage counterpull water stop
2017-10-09 Reading quantity 189
introduction：Extruder screw A cylinder with a spiral groove cut into the outer surface of the screw or a cone with a conical spiral groove cut into the outer surface of the screw。Extruder screw can be divided in many ways。By quantity：Single screw，Twin screw，multiscrew（Planetary screw）Etc.。Twin-screw according to form：It is divided into conical and parallel，According to the rotation direction, it is divided into the same direction and the opposite direction。But screw according to use：plastic、rubber、Injection molding、Chemical fiber etc.。 Universal screw design
2017-10-09 Reading quantity 174
introduction：Blacksmith support seat production With the progress of The Times, the level of industry continues to improve，Support seat manufacturers are also a lot more, but the supporting role and function of their production are the same。 The blacksmith support is the bearing that connects the lead screw to the motor，Construction with special features on the finished shaft end of standard ball screw stock，Standardized support units are preparedEK、EFtype，A standard support unit is prepared for the general ball screwBK、BFtype。The support unit on the fixed side is fitted with a pre-pressure adjustmentJIS5Grade angular contact ball bearing。Especially inEK6、8The subminiature type，Equipped with contact angles developed for ultra-small ball screws45°The ultra-small angular contact ball bearing，High rigidity can be obtained、High precision stable turning performance。 The support unit on the support side uses deep groove ball bearings。Support unitEK、BKAn appropriate amount of lithium soap-based grease is loaded into the
2017-10-08 Reading quantity 182
introduction：Blacksmith Sichuan support seat The support seat is in the support seat of the small steel wheel，Fitted with bearing seat、Vibrating bearing and end cap pressed on bearing seat。In support seat7And bearing seat6Within one week，Oil guide holes are provided5connected，The oil guide hole in the bearing seat is used around the head9Jam up，Oil hole facing the end cap4More conductive oil hole5Other parts are small in diameter，End cover1With bearing seat6Form an annular space3。While the roller is running，Steel wheel rotation，To load small steel wheels8Inside the cooling lubricant，Through the oil guide hole5、Oil hole4、Annular space3，Entry vibrating bearing2Within the，Back to the little steel wheel，Carry out circulating lubrication and cooling。The working principle of the support base is to use inert gas as the elastic medium,In oil(Such as transformer oil and turbine oil50%)The elastic element that seals and lubricates and transmits pressure is called gas spring。 Maintenance of blacksmith Sichuan support seat：
2017-10-08 Reading quantity 192
introduction：Rack parameter calculation formula 17473208.png straight：Pitch of teeth÷π=module oblique：Pitch of teeth*COS÷π=module
2017-10-07 Reading quantity 328
introduction：Chain manufacturer A chain is usually a metal link or ring，Mostly used for mechanical transmission。The chain can be divided into short pitch precision roller chains，Short pitch precision roller chain， Curved plate roller chain for heavy duty drive，Chain for cement machinery， Plate chain。
2017-10-07 Reading quantity 195
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