Ballscrewnutpairisakindofhighprecisiontransmissiondevice.Usingrollingfrictionscrewinsteadofslidingfrictionscrewhasthecharacteristicsofsmallwear,hightransmissionefficiency,stabletransmission,longlife,highaccuracy,hightemperature,etc.Becausetheballscrewnutpairhastheadvantagesofsmallfriction,easytoeliminatethetransmissiongapandotherbulges,itbringsgreatbenefitstothefunctionalimprovementofthemotorsystem.Fault:unabletoselflock,additionallockingdeviceisrequiredforliftingdrive.

    预紧是为了避免滚珠滑动，滚珠丝杠螺母对自锁，能说不，在没有预紧的情况下容易散落。

    Pretighteningistoavoidtheballsliding.Theballscrewnutisself-locking.Itcanbesaidthatitiseasytoscatterwithoutpretightening.

    不是所有的滚珠丝杠都是预紧的，如果主要看一下精度要求，一般的预紧精度很高，负载也可以很大。预加载是分层的，根据应用程序请求进行决策，可以详细检查不同的样品。

 Notallballscrewsarepretightened.Ifyoumainlylookattheaccuracyrequirements,thegeneralpretighteningaccuracyisveryhighandtheloadcanbeverylarge.Preloadingislayered,makingdecisionsbasedonapplicationrequests,allowingyoutoexaminesamplesofdifferentbrandsindetail.

    预紧滚珠丝杠有四种方法:

    Therearefourwaystopretightentheballscrew:

    1.双螺母垫圈式预紧

    1.Doublenutwashertypepretightening

    该系统简单可靠。刚性好，使用更普遍。在双螺母之间加装垫片的情况下，可以有业余厂家根据用户的要求调整好预紧，使更后的装卸十分方便。

    Thesystemissimpleandreliable.Goodrigidity,mostcommonlyused.Inthecaseofaddinggasketbetweenthetwonuts,amateurmanufacturerscanadjustthepretighteningaccordingtotheuser'srequirements,sothatthefinalloadingandunloadingisveryconvenient.

    2.双螺母加肋预紧

    2.Doublenutribpretightening

    利用一个螺母上的外肋，通过圆形螺母调整两个螺母的轴向位置来完成预紧。

    Usingtheouterribononenut,theabsoluteaxialpositionofthetwonutsisadjustedbytheroundnuttocompletethepretightening.

    3.双螺帽齿差式预紧

    3.Doublenuttoothdifferencepretightening

    齿数差为1的齿轮与两个螺母的法兰分离。两个齿轮分离，并与两端的内齿轮环啮合。内齿圈用螺丝固定在螺母座上。在螺母中一个螺母的转移改变了两个螺母的位置来调整间隙和施加预紧力。

 Thegearwithatoothnumberdifferenceof1isseparatedfromtheflangeoftwonuts.Thetwogearsseparateandmeshwiththeinnergearringsatbothends.Theinnerringgearisfixedonthenutseatwithscrews.Thetransferofonenutinthenutchangesthepositionofthetwonutstoadjusttheclearanceandapplythepreload.

    4.单螺母，可变导程自预紧

    4.Singlenut,variableleadselfpreloading

    螺母的内肋滚道在中间的圆上产生导程突变，使左右两端的球在装置后轴向错位，完成预紧。

 Theinnerribracewayofthenutproducesasuddenchangeofleadonthemiddlecircle,whichmakestheballsattheleftandrightendsofthenutaxialdislocationafterthedeviceandcompletesthepretightening.

    滚珠丝杆螺母副轴向间隙的目的:增加预紧时的空行程，减少倒档，无倒档死区，提高传动刚度和传动精度.

 Thepurposeofeliminatingtheaxialclearanceoftheballscrewnutpairistoincreasetheemptystrokewhenpreloading,reducethereversegear,noreversedeadzone,andimprovethetransmissionrigidityandaccuracy

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 Thesearetherelatedcontentsintroducedbytheguidescrewmanufacturer.Formoreinformation,pleasevisitthewebsite:http://www.jgongrun.com