Ball screw is a transmission element often used in tool machinery and precision machinery. Its main function is to convert rotary motion into linear motion or torque into axial repeated force. At the same time, it has the characteristics of high precision, reversibility and efficiency. Due to its small friction resistance, ball screw is widely used in various industrial equipment and precision instruments. Then we should solve the problem of ball screw deformation in use. The following guide screw small series will explain to you:

1.雖然實(shí)心滾珠絲桿的長度過70英尺，但有時(shí)空間限制會(huì)限制其長度。在需要在狹小空間內(nèi)長距離行駛的應(yīng)用中，伸縮式滾珠絲杠副是一種方便的解決方案。這些機(jī)構(gòu)中的中空外螺釘圍繞實(shí)心或空心內(nèi)螺釘。內(nèi)螺釘從外螺釘延伸，增加了螺釘?shù)纳煺狗秶？梢酝ㄟ^這種方式組合三個(gè)或多螺釘，以實(shí)現(xiàn)長的行程。

1. Although the length of the solid ball screw is more than 70 feet, sometimes the space limit will limit its length. The retractable ball screw is a convenient solution in the application of long distance driving in narrow space. The hollow outer screw in these mechanisms surrounds the solid or hollow inner screw. The internal screw extends from the outer screw, which increases the extension range of the screw. Three or more screws can be combined in this way to achieve a long stroke.

2.預(yù)緊力大小必須合適，過小不能確保無隙傳動(dòng)，過大將使驅(qū)動(dòng)力矩增大，效率降低，壽命縮短。預(yù)緊力應(yīng)不大于大軸向負(fù)載的1/3。

2. The pre tightening force must be appropriate. If it is too small, it will not ensure seamless transmission. If it is too large, the driving torque will be increased, the efficiency will be reduced and the service life will be shortened. The preload should not be greater than 1 / 3 of the large axial load.

導(dǎo)軌絲杠

Guide screw

3.滾珠絲桿用于機(jī)械中，并且在飛機(jī)上需要用于驅(qū)動(dòng)前緣翼片。螺釘封閉在密封管中，安裝支架連接到負(fù)載并從外管延伸。致動(dòng)電動(dòng)機(jī)伸出或縮回螺釘以推動(dòng)或拉動(dòng)負(fù)載。這些裝置用于定位應(yīng)用，例如商業(yè)衛(wèi)星天線，材料處理以及需要簡單，打開或關(guān)閉操作的應(yīng)用。致動(dòng)器還可以在不消耗電力的情況下或在斷電情況下保持負(fù)載靜止。

3. Ball screw is used in machinery and is required to drive leading edge fins on aircraft. The screw is enclosed in a sealed tube and the mounting bracket is connected to the load and extends from the outer tube. The actuator motor extends or retracts the screw to push or pull the load. These devices are used for positioning applications such as commercial satellite antennas, material handling, and applications that require simple, on or off operation. The actuator can also keep the load stationary without consuming power or in case of power failure.

4.另一種墊片調(diào)隙式軸向間隙的方法。墊片調(diào)整式是指用螺釘連接滾珠絲桿兩個(gè)螺母的凸緣，并在凸緣間加墊片。調(diào)整墊片的厚度使螺母產(chǎn)生微量的軸向位移，以達(dá)到軸向間隙和產(chǎn)生 預(yù)緊力的目的。

4. Another way to eliminate the axial clearance is to adjust the clearance of the gasket. The gasket adjustment type refers to connecting the flange of the two nuts of the ball screw with screws and adding a gasket between the flanges. Adjust the thickness of the gasket to make the nut produce a small amount of axial displacement, so as to eliminate the axial clearance and produce preload.

5.有時(shí)標(biāo)準(zhǔn)滾珠絲杠不能為特定應(yīng)用提供正確的解決方案。在許多情況下，傳統(tǒng)滾珠絲杠的變型可以解決多個(gè)問題。例如，空心滾珠絲杠將扭矩轉(zhuǎn)換為推力，同時(shí)允許冷卻劑流動(dòng)或布線的路徑。穿過螺桿軸的冷卻劑可以幫助保持精密滾珠絲杠操作的公差或潤滑切削刀具。空心螺釘還具有比實(shí)心螺釘?shù)偷霓D(zhuǎn)動(dòng)慣量，這可以顯著啟動(dòng)和停止速度。

5. Sometimes the standard ball screw does not provide the right solution for specific applications. In many cases, variants of the traditional ball screw can solve many problems. For example, hollow ball screws convert torque into thrust while allowing coolant flow or routing. Coolant passing through the screw shaft helps to maintain tolerances in precision ball screw operation or to lubricate cutting tools. Hollow screws also have a lower moment of inertia than solid screws, which can significantly start and stop speeds.

導(dǎo)軌絲杠

Guide screw

6.滾珠絲桿軸向間隙是承載時(shí)在滾珠與滾道型面接觸點(diǎn)的彈性變形所引起的螺母位移量和螺母原有的間隙的綜合。常用的是雙螺母預(yù)緊方法，把彈性變形控制在小范圍內(nèi)，以減小或軸向間隙，并可以提高上銀滾珠絲桿的剛度。

6. The axial clearance of ball screw is the combination of nut displacement caused by elastic deformation at the contact point between ball and raceway surface and the original clearance of nut. In order to reduce or eliminate the axial clearance and improve the stiffness of the upper silver ball screw, the double nut pre tightening method is commonly used to control the elastic deformation in a small range.

關(guān)于如何解決滾珠絲桿變形的問題就介紹到這里了，希望對大家有所幫助。想了解更多相識(shí)，可以關(guān)注導(dǎo)軌絲杠

On how to solve the problem of ball screw deformation introduced here, I hope to help you. If you want to know more, you can pay attention to the guide screw