導(dǎo)軌絲杠是將回轉(zhuǎn)運(yùn)動(dòng)轉(zhuǎn)化為直線運(yùn)動(dòng)，或?qū)⒅本€運(yùn)動(dòng)轉(zhuǎn)化為回轉(zhuǎn)運(yùn)動(dòng)的理想的產(chǎn)品。

Guide screw is an ideal product to convert rotary motion into linear motion, or convert linear motion into rotary motion.

導(dǎo)軌絲杠的結(jié)構(gòu)：

Structure of guide screw:

導(dǎo)軌絲杠副的結(jié)構(gòu)傳統(tǒng)分為內(nèi)循環(huán)結(jié)構(gòu)(以圓形反向器和橢圓形反向器為代表)和外循環(huán)結(jié)構(gòu)(以插管為代表)兩種。這兩種結(jié)構(gòu)也是常用的結(jié)構(gòu)。這兩種結(jié)構(gòu)性能沒(méi)有本質(zhì)區(qū)別，只是內(nèi)循環(huán)結(jié)構(gòu)安裝連接尺寸小;外循環(huán)結(jié)構(gòu)安裝連接尺寸大。目前，導(dǎo)軌絲杠副的結(jié)構(gòu)已有10多種，但比較常用的主要有：內(nèi)循環(huán)結(jié)構(gòu);外循環(huán)結(jié)構(gòu);端蓋結(jié)構(gòu);蓋板結(jié)構(gòu)。

The structure of guide rail screw pair is traditionally divided into internal circulation structure (represented by circular reverser and elliptical reverser) and external circulation structure (represented by intubation). These two structures are also commonly used. There is no essential difference between the two structures, but the installation and connection size of the internal circulation structure is small; The installation and connection size of external circulation structure is large. At present, there are more than 10 kinds of structures of guide rail lead screw pair, but the commonly used ones are: internal circulation structure; External circulation structure; End cover structure; Cover plate structure.

導(dǎo)軌絲杠原理：

Guide screw principle:

1、按照國(guó)標(biāo)GB/T17587.3-1998及應(yīng)用實(shí)例，導(dǎo)軌絲杠(目前已基本取代梯形絲桿，已俗稱絲桿)是用來(lái)將旋轉(zhuǎn)運(yùn)動(dòng)轉(zhuǎn)化為直線運(yùn)動(dòng);或?qū)⒅本€運(yùn)動(dòng)轉(zhuǎn)化為旋轉(zhuǎn)運(yùn)動(dòng)的執(zhí)行元件，并具有傳動(dòng)效率高，定位正確等

1. According to the national standard GB / t17587 3-1998 and application examples, guide screw (which has basically replaced trapezoidal screw, commonly known as screw) is used to convert rotary motion into linear motion; Or an actuator that converts linear motion into rotary motion, and has high transmission efficiency, correct positioning, etc

2、當(dāng)導(dǎo)軌絲杠作為主動(dòng)體時(shí)，螺母就會(huì)隨絲桿的轉(zhuǎn)動(dòng)角度按照對(duì)應(yīng)規(guī)格的導(dǎo)程轉(zhuǎn)化成直線運(yùn)動(dòng)，被動(dòng)工件可以通過(guò)螺母座和螺母連接，從而實(shí)現(xiàn)對(duì)應(yīng)的直線運(yùn)動(dòng)。

2. When the guide rail lead screw is used as the driving body, the nut will be transformed into linear motion according to the lead of the corresponding specification with the rotation angle of the lead screw. The passive workpiece can be connected with the nut through the nut seat, so as to realize the corresponding linear motion.

導(dǎo)軌絲杠的特點(diǎn)：

Characteristics of guide screw:

1、摩擦損失小、傳動(dòng)效率高

1. Low friction loss and high transmission efficiency

由于導(dǎo)軌絲杠副的絲杠軸與絲杠螺母之間有很多滾珠在做滾動(dòng)運(yùn)動(dòng),所以能得到較高的運(yùn)動(dòng)效率。與過(guò)去的滑動(dòng)絲杠副相比驅(qū)動(dòng)力矩達(dá)到1/3以下,即達(dá)到同樣運(yùn)動(dòng)結(jié)果所需的動(dòng)力為使用滑動(dòng)絲杠副的1/3.在省電方面很有幫助。

Because there are many balls rolling between the lead screw shaft and the lead screw nut of the guide rail lead screw pair, high motion efficiency can be obtained. Compared with the past sliding screw pair, the driving torque is less than 1 / 3, that is, the power required to achieve the same motion result is 1 / 3 of that of the sliding screw pair It is very helpful in saving electricity.

2、精度高

2. High precision

導(dǎo)軌絲杠副一般是用世界水平的機(jī)械設(shè)備連貫生產(chǎn)出來(lái)的，特別是在研削、組裝、檢查各工序的工廠環(huán)境方面,對(duì)溫度、濕度進(jìn)行了嚴(yán)格的控制，由于完善的品質(zhì)管理體制使精度得以充分保證。

The guide screw pair is generally produced continuously with world-class mechanical equipment, especially in the factory environment of grinding, assembly and inspection processes, the temperature and humidity are strictly controlled, and the accuracy is fully guaranteed due to the perfect quality management system.

3、高速進(jìn)給和微進(jìn)給可能

3. High speed feed and micro feed are possible

導(dǎo)軌絲杠副由于是利用滾珠運(yùn)動(dòng),所以啟動(dòng)力矩很小,不會(huì)出現(xiàn)滑動(dòng)運(yùn)動(dòng)那樣的爬行現(xiàn)象,能保證實(shí)現(xiàn)微進(jìn)給。

Because the guide rail screw pair uses ball motion, the starting torque is very small, and there will be no crawling phenomenon such as sliding motion, which can ensure the realization of micro feed.

4、軸向剛度高

4. High axial stiffness

導(dǎo)軌絲杠副可以加與預(yù)壓,由于預(yù)壓力可使軸向間隙達(dá)到負(fù)值,進(jìn)而得到較高的剛性(導(dǎo)軌絲杠內(nèi)通過(guò)給滾珠加予壓力,在實(shí)際用于機(jī)械裝置等時(shí),由于滾珠的斥力可使絲母部的剛性增強(qiáng))。

The guide screw pair can be preloaded. Due to the preload, the axial clearance can reach a negative value, so as to obtain high rigidity (by adding pressure to the ball in the guide screw, when it is actually used in mechanical devices, the rigidity of the nut can be enhanced due to the repulsion of the ball).

5、不能自鎖、具有傳動(dòng)的可逆性

5. It cannot be self-locking and has transmission reversibility

導(dǎo)軌絲杠的主要參數(shù)：

Main parameters of guide screw:

螺紋的主要參數(shù)

Main parameters of thread

1)外徑d(大徑)(D)——與外螺紋牙頂相重合的假想圓柱面直徑——亦稱公稱直徑

1) Outer diameter D (major diameter) (d) - the diameter of the imaginary cylindrical surface coincident with the crown of the external thread - also known as the nominal diameter

2)內(nèi)徑(小徑)d1(D1)——與外螺紋牙底相重合的假想圓柱面直徑，在強(qiáng)度計(jì)算中作危險(xiǎn)剖面的計(jì)算直徑

2) Inner diameter (small diameter) D1 (D1) - the diameter of the imaginary cylindrical surface coincident with the bottom of the external thread, which is used as the calculated diameter of the dangerous section in the strength calculation

3)中徑d2——在軸向剖面內(nèi)牙厚與牙間寬相等處的假想圓柱面的直徑，近似等于螺紋的平均直徑 d2≈0.5(d+d1)

3) Pitch diameter D2 - the diameter of the imaginary cylindrical surface where the tooth thickness is equal to the inter tooth width in the axial section, which is approximately equal to the average diameter of the thread D2 ≈ 0.5 (D + D1)

4)螺距P——相鄰兩牙在中徑圓柱面的母線上對(duì)應(yīng)兩點(diǎn)間的軸向距離

4) Pitch P - axial distance between two points corresponding to the generatrix of two adjacent teeth on the pitch diameter cylindrical surface

5)導(dǎo)程(S)——同一螺旋線上相鄰兩牙在中徑圓柱面的母線上的對(duì)應(yīng)兩點(diǎn)間的軸向距離

5) Lead (s) - axial distance between two corresponding points of two adjacent teeth on the generatrix of pitch diameter cylinder on the same helix

6)線數(shù)n——螺紋螺旋線數(shù)目，一般為便于制造n≤4螺距、導(dǎo)程、線數(shù)之間關(guān)系：S=nP

6) Number of threads n - number of spiral threads of threads, generally for ease of manufacturing, n ≤ 4, relationship between pitch, lead and number of threads: S = NP

7)螺旋升角ψ——在中徑圓柱面上螺旋線的切線與垂直于螺旋線軸線的平面的夾角。

7) Spiral angle ψ—— The angle between the tangent of the helix and the plane perpendicular to the axis of the helix on the pitch diameter cylinder.

8)牙型角α——螺紋軸向平面內(nèi)螺紋牙型兩側(cè)邊的夾角9)牙型斜角β——螺紋牙型的側(cè)邊與螺 紋軸線的垂直平面的夾角。對(duì)稱牙型

8) Tooth angle α—— Included angle of both sides of thread profile in axial plane of thread 9) bevel angle of profile β—— The angle between the side of the thread profile and the vertical plane of the thread axis. Symmetrical tooth pattern

各種螺紋(除矩形螺紋)的主要幾何尺寸可查閱有關(guān)標(biāo)準(zhǔn)——公稱尺寸為螺紋外徑對(duì)管螺紋近似等于管子的內(nèi)徑。

Refer to relevant standards for the main geometric dimensions of various threads (except rectangular threads) - the nominal size is the outer diameter of the thread, which is approximately equal to the inner diameter of the pipe thread.

克服軸向力Q勻速上升所需的圓周力

Overcome the circumferential force required for the uniform rise of axial force Q

導(dǎo)軌絲杠應(yīng)用：

Application of guide screw:

行業(yè)包括:IT產(chǎn)業(yè) 、汽車、家用電器、工作機(jī)械、鐵路、鋼鐵、工程機(jī)械發(fā)電廠電廠、石化機(jī)械等。

Industries include: IT industry, automobile, household appliances, working machinery, railway, steel, construction machinery, power plant, petrochemical machinery, etc.

廣泛應(yīng)用于數(shù)控機(jī)床，電子設(shè)備，自動(dòng)化設(shè)備，激光設(shè)備等領(lǐng)域

Widely used in CNC machine tools, electronic equipment, automation equipment, laser equipment and other fields

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