1、ballscrewsTECHNICAL CATALOGUE滚珠丝杠技术目录 has been accu-mulating experience of thedesign,production and sales ofball screws for many years.Ourongoing effort to attain the hig-hest level of QUALITY has ena-bled us to put an internationallyapproved quality product on themarket.To make it,uses state-of-the
2、-art productionmeans,vanguard technologies,CAD/CAM and other computingsystems specially adapted to theproduction of ball screws.also imple-ments a plain Quality Assurancepolicy that has won us theRegistered Firm Certificate No.ER-071/2/96 for compliance withthe UNE-EN ISO 9002 standard.,staffed by a
3、team of highly skilled PEOPLE,offers their customer-orientatedSERVICE vocation to the marketand provides adequate solutionsto any demands and a quickresponse to all sorts of applications.INTRODUCTIONEmpresaRegistradaEmpresaRegistradaER-071/2/96ISO 9002介绍柯尔特（K o r t a S.A.）公司在滚珠丝杠领域已有多年的设计、生产和销售经验。我公
4、司一直在不断的努力，并追求最高的产品质量，这就保证我们能够向市场提供具有国际品质的产品。K O R T A S.）为了达到这一目标，柯尔特（A.公司采用了最先进的生产工艺、领先的技术、CAD/CAM和其它专用于滚珠丝杠生产的计算机系统。完于此同时，柯尔特（K O R T A S.A.）施行了善的质量保证措施，这使我们通过了UNE-EN ISO9002质量标准体系认证，并注册并获得了编号为ER-071/2/96的质量认证证书。柯尔特（K O R T A S.A.）由技术娴熟的职工队伍组成，可以向市场提供以客户为导向的专业服务，真对用户的不同要求能提供适当的解决方案，并对各种请求作出迅速的回复。3
5、Index1.Service to the Customer2.Guaranteed Quality3.Characteristics of Ball Screws4.Production Range5.Fields of Use6.Terminology and Definitions7.Nut Design Details8.Acceptance Conditions9.Preload and Rigidity10.Design Calculations-Buckling Calculation-Critical Speed-Static and Dynamic Load Ratings-
6、Life Expectancy-Deflection of Ball Screw Shaft under its own Weight-Thermal Deformation of Ball Screw Shaft-Torsion of the Ball Screw Shaft-Driving Torque and System Inertia-Efficiency and Power-Example of Ball Screw Calculation11.General Information-Types of Ends and Typical Mounting-Storage and Tr
7、ansport-Working Temperature-Protection-Hollow Shaft Ball Screws-Materials-Lubrication-Mounting and Dismantling of the Nut12.Preventive Measures.Problems andSolutions.13.Selection of Ball Screws14.QuestionnairePage468101213162134464648505256575758606166666767686869697172747546810121316213446464850525
8、65757586061666667676868696971727475目录页码1.客户服务2.质量保证3.柯尔特（Korta）.滚珠丝杠的特征 4.产品范围5.使用领域6.术语和定义7.螺母设计细节8.验收条件9.预载和刚度10.设计计算-断裂强度(挠度)-设计计算.额定负载设计计算.临界速率-预计寿命-滚珠丝杠轴受其自身重力产生的偏差-滚珠丝杠轴热变形-滚珠丝杠轴扭矩-传动力矩和系统惯性-功效和功率-滚珠丝杠计算举例11.概述-轴端类型和典型的安装-储存和运输-工作温度-保护封条-材料-润滑油-螺母的安装和拆卸12.预防性措施.问题和解决办法13.选择柯尔特（KORTA）滚珠丝杠14.调查表
9、 4Service to the CustomerProduct range1Higher performance and efficiency com-bined with lower maintenance costs are themajor advantages of high-accuracy ballscrews for linear motion transmission over con-ventional trapezoidal thread screws.The customers also benefit from enabling them to choose from
10、 one of the widestranges in the ball screw market.This allows usto recommend and supply the most suitableball screw for each type of application.Our primary objective is to give the cus-tomer an adequate and quality service.seeks continuous improvements in order toremain one of the sectors leaders i
11、n the world,in terms of product range,quality,technicaladvices,delivery times and prices.We have also established a ball screwrepair service to see about any case of an emer-gency.offers for sale a wide range of pre-cision ball screws in various sizes and leads(left-handed and right-handed threads)w
12、ith sin-gle or double nuts,made from standard orstainless materials,either ground or rolled.So,we can always select one ad-hoc for your appli-cation.Likewise,has in STOCK a full refer-ence catalogue of high-accuracy ball screws asper,DIN 69051/5 and DIN 69051/2 stan-dards.Our R&D department have cre
13、ated a data-base regrouping all the parameters essential toevaluate the efficiency and performance of ballscrews for an extremely diversified field ofuses.We are thus in a position to advise youtechnically and help you to satisfy your applica-Technical advices客户服务 与传统梯形螺纹螺杆相比，柯尔特（Korta）高精度滚珠丝杠进行直线运动
14、传动的主要优点是集多功能，高效率和低维护成本为一体。客户可以从广泛的滚珠丝杠产品范围中进行挑选，从而从中获益。这可以让我们向您推荐每种最恰当且实用的滚珠丝杠。我们的主要目标就是向客户提供一种充分的质量服务。为了成为世界上本行业的领导者之一，柯尔特（Korta）在产品范围，质量，技术支持，交货时间以及价格方面一直谋求不断的改进。我们已经建立了一个滚珠丝杠维修服务中心，用于处理任何紧急情况。产品范围 柯尔特（Korta）销售各种尺寸和螺距（左螺纹和右螺纹）单螺母及双螺母精度滚珠丝杠，使用标准材料或特殊材料制成，采用磨削或滚轧技术制造。所以，我们可以根据您的使用情况来选择一个最合适的产品。同样的，柯
15、尔特（Korta）可以提供符合DIN 69051/5 和DIN 69051/2 标准的高精度滚珠丝杠完整的现货样本供参考。技术支持 我们的研发部门已经创建并重组了所有关键参数的数据库，这些参数用于评估各种极端条件下的滚珠丝杠的效率和性能。因此我们可以向你提出技术建议，并帮助您满足使用的要求（尽管很难描述在极端条件 tion requirements.(Although it is hard to pre-dict the behaviour of a ball screw underextreme operating conditions,we can alwaysprepare a simu
16、lation of the ball screw life andsee how the ball screw performs on a test-bench.)Such an aid provides the choice of theideal ball screw type,diameter,lead,preload-ing,material,lubrication,etc.,for each concreteapplication.A CAD system permits us to simu-late,optimize and update our designs,whichena
17、bles us to give you a quick and appropriateanswer.is equipped with high-output ver-satile machinery arranged in cells according tothe different product families and has items ofsoftware to optimize the workload of eachmachine and the delivery of orders according tothe required lead times.As a result
18、,moreurgent supplies can be served without alteringpreviously scheduled deliveries.Moreover,if you can use any type of ball screwswe have in STOCK,the lead time will be muchshorter.Ongoing improvement of our productionfacilities makes it possible for us to reduce ourmanufacturing costs.For you,this
19、means youwill profit by really near-cost and competitiveprices.If any ball screw in our STOCK range fits yourrequirements,do not hesitate to use it.Its pricewill always be lower than that of a customizedball screw.will select the most cost-effective ballscrew complying with the specifications andqua
20、lity standards you would impose on us.In-Time DeliveryCompetitive prices5下滚珠丝杠的行为，但我们总是准备了一份关于滚珠丝杠寿命的模拟，可以看清滚珠丝杠在测试平台上的表现）。针对每种具体应用，可以就类型，直径，螺距，预负荷，材料，润滑等因素，帮助您选择理想的滚珠丝杠。CAD系统可让我们模拟，优化和更新设计，从而使我们能够向您做出快速适当的响应。及时交货根据不同的产品系列，柯尔特（Korta）配置了多种单元化高生产率加工机械，根据所要求的交付周期，柯尔特（Korta）具有优化每种机械工作负荷和订单交付的软件系统。这样一来，不
21、论多么紧急的供货都不需要改变前面所做的交付计划。另外，如果您所使用的滚珠丝杠我们有现货，则交付周期可以更短。竞争性价格生产设施的不断改进可以使我们降低制造成本。对于您来说，这意味着您可以用接近成本的竞争性价格赚取利润。如果我们现存的任何滚珠丝杠符合你的要求，不要犹豫，就选择它们吧。它们的价格将肯定低于定制的滚珠丝杠的价格。针对您所要求的技术规格和质量标准，柯尔特（Korta）将选择最具有成本效益性的滚珠丝杠提供给您。Guaranteed quality26For,the quality concept is basedon the fulfilment of and compliance wi
22、th thecustomers requirements from the initial to thefinal stages of each order.Zero defects is ourpriority target and it is the responsability ofevery people within our organization to guar-antee the quality of the products sup-plies to the customer.is regularly audited by cus-tomers and authorized
23、independent regulatoryagencies.In our turn,we audit our suppliersand subcontractors as per the operating proce-dures defined in our Quality Manual.保证质量对柯尔特（Korta）来说，质量概念是以从订单的开始阶段到最后阶段完全满足并与客户的要求完全一致为基础的。零缺陷是我们的优先目标。保证提供给客户的产品的质量是我们组织内每个人员的责任。柯尔特（Korta，s.a.）由客户和独立的管理机构定期进行审核和核准。而我们则根据我们的质量手册所定义的经营规程
24、来审核我们的供应商和分包商。质量证书柯尔特（Korta）滚珠丝杠ZUMAYGipuzkoa 西班牙滚珠丝杠螺距表图1 螺距精度证书质量证书柯尔特（Korta）滚珠丝杠ZUMAYGipuzkoa 西班牙滚珠丝杠初始负荷表图2 初始负荷扭矩证书 The Quality Assurance System in place atis attested by the Registered FirmCertificate ER-071/2/96 for compliance with theUNE-EN ISO 9002 standard.Control certificates may deliver
25、cover:-Lead accuracy(figure 1).-Preloading torque(figure 2).-Rigidity(figure 3).-Dimensional tolerances and conformity(figure 4).-Chemical analysis of the materials used.-Heat treatments.-Dye-penetrant crack detection.-Magnetic particle inspection.-Other inspections.7质量证书柯尔特（Korta）滚珠丝杠ZUMAYGipuzkoa
26、西班牙滚珠丝杠刚性表图3 刚性证书质量证书柯尔特（Korta）滚珠丝杠ZUMAYGipuzkoa 西班牙滚珠丝杠检查数据表图4 尺寸证书柯尔特（Korta s.a.）公司内的质量保证系统由ER-071/2/96号注册公司证书所证明，证明其符合UNE-EN ISO9002 标准。控制证书柯尔特（Korta）可能包括:-螺距精度（图1）-初始负荷扭矩（图2）-刚性（图3）-尺寸偏差和一致性（图4）-所用材料的化学分析。-热处理。-染色渗透剂裂纹检查-磁性颗粒检查-其他检查 Characteristics of ball screws38One of the main new features of
27、 ball screws is that the sliding friction producedby conventional screws has been replaced by arolling friction,in the same way as occurs withball bearings.The resultant advantages for ballscrew-driven actuators are as listed below:Rigorous quality and precision controlsare carried out during the ma
28、nufacturingprocess of ball screws,usingsophisticated measuring systems(laser,profilometers,contour projectors,surfaceroughness testers,continuous torqueme-ters,etc.).Some of these measurementsare performed in a controlled-atmosphereroom where temperature and humidityare kept constant so that ambient
29、 condi-tions do not distort the test results.When trying to minimize the axial play(backlash)of conventional screws by allmeans,it happens that the torque neces-sary to obtain the movement becomesexcessive.As a consequence,the screwno longer operates smoothly and freezingmay well occur.Through prelo
30、ading theball screw,have managed to elim-inate axial play,thereby ensuring anextremely smooth operation and the useof very low drive torques.Due to the extremely low rolling frictioncoefficient of the ball screws in compari-son with the sliding friction of convention-al screws,the efficiency of the
31、former isHigh AccuracyHigh Rigidity and Minimal Axial PlaySmooth Operation and High Efficiency柯尔特（Korta）滚珠丝杠的特征柯尔特（Korta）滚珠丝杠的主要新特征之一就是由常规螺杆所产生的滑动摩擦已经被滚动摩擦所代替，在滚动轴承上也发生过同样的替代。由滚珠丝杠驱动的传动装置的综合优点列举如下：精度高在制造柯尔特(Korta)滚珠丝杠过程中，采用复杂的测量系统（激光，轮廓曲线仪，轮廓投影仪，表面粗糙度测试仪，连续.扭矩计等）进行了严格的质量和精度控制。其中的某些测量是在温度和湿度保持恒定的控制环境
32、下进行的，这样就会使环境温度不会歪曲测量结果。刚性高，无轴隙当通过各种方式将传统丝杠的轴隙（后冲）最小化时，使丝杠移动所必需的扭矩总是过大。这样丝杠的运行不再平滑，并可能使丝杠的运动停止。通过给丝杠加上初始负荷，柯尔特（Korta）已经设法去掉了丝杠的轴向间隙，这样就可以确保丝杠平滑运行，而且使用的传动力矩非常小。平滑运行与高效传动因为与传统丝杠的滑动摩擦系数相比，滚珠丝杠的滚动摩擦系数非常小，滚珠丝杠的效率更高，在某些情况下可达97%和98%。much higher,in some cases as much as 97%and 98%.Figure 5 shows two charts g
33、iving a goodidea of the higher rates of efficiency achievedwhen using ball screws as opposed to the useof conventional screws.All those characteristics contribute toensure the long service life of ballscrews and their working with high positioningand motion accuracy.They also allow transferspeeds mu
34、ch higher than are obtained withconventional trapezoidal thread screws.Otherinteresting features are fewer vibrations anddisplacements,less wear and overheating and,finally,lower drive powers.To achieve this andto guarantee the described advantages of ballscrews,cares for top quality throughoutthe p
35、roduct manufacturing process.Because of their metal-against-metal con-tact and subsequent sliding friction,conven-tional screws require a high initial driving force.By contrast,only a small force is needed by theballs of a ball screw to overcome the rollingfriction.Uso normal:Conversin del movimient
36、ode rotacin en movimiento lineal.Normal use:transformation of a rotarymotion into a linear motion10090807060504030201001 2 3 4 5 6 7 8 9 10Husillos a bolasBall screwAngulo de Hlice(Grados)Husillo convencionalConventional screw (%)1()Lead angles(Degrees)()=0,1=0,2=0,003=0,005=0,0110090807060504030201
37、001 2 3 4 5 6 7 8 9 10Husillo convencionalConventional screw=0,1=0,003=0,005=0,01Husillos a bolasBall screwAngulo de Hlice(Grados)Uso normal:Conversin del movimientolineal en movimiento de rotacin.Normal use:transformation of a rotarymotion into a linear motion:Coeficiente de rozamiento.:Friction co
38、efficientRendimiento (%)Efficiency29()()Special use:transformation of a linearmotion into a rotary motion.Normal use:transformation of a rotary motion into a linear motion.:Friction coeficient从图5上的两个图表可以看出使用滚珠丝杠比使用传统的丝杠能获得更高的效率。Ball screw 滚珠丝杠Conventional screw 传统丝杠：摩擦系数正常使用：轴向运动到直线运动的转换。具体使用：直线运动到轴
39、向运动的转换。图5柯尔特（KORTA）滚珠丝杠的机械效率 所有这些特征可以确保柯尔特（Korta）滚珠丝杠的使用寿命更长，定位精度和运动精度更高。使用滚珠丝杠所获得的传动速度要高于使用传统梯形螺纹丝杠所获得的传动速度。它还具有其他有益特征，比如更少的震动和位移，磨损和过热情况更少，最后，它降低了驱动力。为了获得这些功能并确保所描述的关于滚珠丝杠的优点，柯尔特（Korta）在整个生产过程中都特别关注一流的质量。因为金属与金属的接触以及随之而来的滑动摩擦的缘故，传统丝杠要求一个较高的初始驱动力。而滚珠丝杠则恰恰相反，它只需要很小的力就可以克服滚动摩擦力。Production Range410The
40、 table 1 shows the most common sizesused in the manufacturing of ballscrews.Please contact s EngineeringDepartment about the possibility of dealing withother sizes.In order to minimize the delivery times,offers a range of ball screws in severalsizes from permanent stocks.The said rangecomprises ball
41、 screws according to boths own standard and the DIN 69051 stan-dard.Each category is further divided into rolledball screws and ground ball screws.Rolled ballscrews are suitable for any applicationdemanding a level of performance from thissystem,which need not be as high as thatrequired from ground
42、ball screws.Manufacturing of the former type excludes thegrinding of the screw thread(but not of the nutthread);it ensues a substantial cutdown of thisproduct manufacturing costs and selling price.Stock of KORTA Ball screwsTab.1Diameter1216202532405063801001204 5 6 8 10 12 16 20 25 32 40 50 64 Lead产
43、品范围螺距直径DIN标准螺距上表列出了柯尔特(KORTA)所生产的滚珠丝杠中最常用的直径尺寸，其它尺寸能否生产请联系柯尔特（KORTA）设计部门。柯尔特(KORTA)滚珠丝杠库存为了尽量缩短交货时间，柯尔特（KORTA）库存中长期提供一系列多种尺寸的滚珠丝杠，这一系列产品包括根据柯尔特（KORTA）自身标准和DIN69051标准生产的滚珠丝杠。每一类又可分为滚轧滚珠丝杠和磨削滚珠丝杠。滚轧滚珠丝杠适用于与该系统性能相一致的任何要求，不像对磨削滚珠丝杠性能要求的那么高。生产滚轧滚珠丝杠时不需要研磨螺纹（而不是螺母螺纹），这样可以大幅降低该产品的生产成本和销售价格。11Norma DIN 6905
44、1DIN 69051 standard Ground ball screws with UDBS double nut.Production Range.Stock Rolled or ground ball screws with RBS or RS single nut.KORTA standard Rolled or ground ball screws with KBS single nut.Ground ball screws with EDBS double nut.DIN 69051/5DIN 69051/2Non standard leadDiameterLead1620253
45、24050635 10 20 32 40DiameterLead162025324050635 10 20 40 DiameterLead162025324050635 10 20 40 生产范围，库存Korta标准 滚轧或磨削滚珠丝杠，带RBS或RS单螺母。磨削滚珠丝杠，带UDBS双螺母。螺距直径表2螺距直径表3螺距直径表4 滚轧或磨削滚珠丝杠，带KBS单螺母。磨削滚珠丝杠，带EDBS双螺母。非标准螺距/12Ball screws are successfully used in the follow-ing areas:CNC Machining Centres CNC Lathes CN
46、C Milling Machines CNC Grinding Machines Machine-Tools in general Packing Machines Printing Machines Plastic-Processing Machinery X-Y Tables Lifting Equipment Actuators Metal Industry Car Industry Aircraft Industry Medical Technology X-ray machines Hospital beds Food Industry Pharmaceutical Sector N
47、uclear Industry Presses,Injection Moulding Machine Fields of use5Ball Screws使用领域滚珠丝杠被成功运用在下列领域：CNC 机床-CNC 加工中心-CNC车床-CNC铣床-CNC磨床 普通机床 包装机 印刷机 塑料处理机械 X-Y台 起重设备 传动装置 金属工业 汽车工业 航空工业 医学工业 -X光机 -医院病床 食品工业 制药领域 核工业 CNC Machine-ToolsBall screw 滚珠丝杠图6 Terms and Definitions6d0=nominal diameterd1=ball screw s
48、haft outer diameterd2=ball screw shaft root diameterd3=journal diameterD=ball nut body outer diameterD4=ball nut body root diameterD3=ball nut body internal diameterDpw=pitch circle diameterDw=nominal ball diameterl1=thread lengthPh=lead=angle of contact between ball and track=lead angleNominal diam
49、eter d0:is the size used todefine a ball screw.Pitch circle diameter Dpw:is the diam-eter of the cylinder containing the centres ofthe balls which are in contact with the screwshaft and the ball nut body at the theoreticalcontact points(=45).Ball track:refers to the helical groove cutin the screw sh
50、aft and in the nut for reactionload transmission between the ball nut bodyand the ball screw shaft through the balls.13PhDpwd0d1d2d3D4DD1DwBallNutScrew shaftTrminos y definicionesTrminos y definicionesl1Fig.7术语和定义Ball 滚珠Nut 螺母screw shaft丝杠轴d0=额定直径d1=滚珠丝杠轴外径 d2=滚珠丝杠轴齿根直径d3=轴颈直径D=球状螺母体外径D4=球状螺母体齿根直径D3
