The challenge for mechanical automation systems is to successfully transform rotary motion from a motor or mechanical motor into a useful linear motion form. A breakthrough in this area, the conveyor belt system represents the conversion of rotation to linear motion used in production environments. These systems can transport various raw materials and workpieces in a more useful way than before using mechanical force, and can be used in a very useful production environment.

今天，在旋轉(zhuǎn)運(yùn)動轉(zhuǎn)換領(lǐng)域的重要工程工作已經(jīng)產(chǎn)生了各種各樣的線性機(jī)械執(zhí)行器，這些執(zhí)行器對廣泛的先進(jìn)自動化應(yīng)用非常有用。挑戰(zhàn)在于為所需的功能選擇合適的執(zhí)行器，無論它是意味著原材料在制造環(huán)境中的移動，或更先進(jìn)的運(yùn)動系統(tǒng)的構(gòu)造，旨在將模具移動到準(zhǔn)確的位置。

Today, important engineering work in the field of rotary motion conversion has produced a variety of linear mechanical actuators, which are very useful for a wide range of advanced automation applications. The challenge is to select the appropriate actuator for the required function, whether it means the movement of raw materials in the manufacturing environment or the construction of more advanced motion systems, aimed at moving the mold to a precise position.

為了選擇合適的線性機(jī)械執(zhí)行機(jī)構(gòu)，需要考慮一些重要的考慮因素，如所需的負(fù)載能力或推力以及必要的行程距離。雖然這些是主要考慮因素，但其他因素，如維護(hù)負(fù)擔(dān)，無疑起著重要作用。同樣重要的角色。

In order to select a suitable linear mechanical actuator, some important considerations need to be considered, such as the required load capacity or thrust and the necessary travel distance. Although these are the main considerations, other factors, such as the maintenance burden, undoubtedly play an important role. An equally important role.

兩種廣泛使用的機(jī)械化線性執(zhí)行器因其驅(qū)動機(jī)制而有所不同-皮帶驅(qū)動和滾珠絲杠驅(qū)動執(zhí)行器。這兩種類型在類似的應(yīng)用中都被采用，但兩種類型在功能上有顯著差異。每種類型都具有獨(dú)特的強(qiáng)度和重要限制，在選擇執(zhí)行機(jī)構(gòu)時需要仔細(xì)考慮這些限制。

The two widely used mechanized linear actuators differ depending on their driving mechanisms - belt driven and ball screw driven. Both types are used in similar applications, but there are significant differences in functions between the two types. Each type has unique strengths and important limitations that need to be carefully considered when selecting an actuator.

同步帶模組導(dǎo)軌：帶傳動執(zhí)行機(jī)構(gòu)的工作原理與輸送帶系統(tǒng)相同。帶傳動通過連接在兩個環(huán)形滑輪之間的正時皮帶將旋轉(zhuǎn)運(yùn)動轉(zhuǎn)換為線性運(yùn)動。正時皮帶通常由纖維增強(qiáng)彈性材料制成。奧默，但許多其他的皮帶材料可用于更苛刻的應(yīng)用。皮帶包含與轉(zhuǎn)子皮帶輪連接的齒，以有用地傳遞扭矩和防止打滑。皮帶傳動被封閉在鋁體內(nèi)，而滑塊位于頂部，驅(qū)動軸接口通常垂直于執(zhí)行機(jī)構(gòu)的側(cè)面。

Synchronous belt module guide rail: the working principle of the belt drive actuator is the same as that of the conveyor belt system. The belt drive converts rotary motion into linear motion through a timing belt connected between two circular pulleys. The timing belt is usually made of fiber reinforced elastic material. Omer, but many other belt materials can be used for more demanding applications. The belt contains teeth connected to the rotor pulley to effectively transmit torque and prevent slipping. The belt drive is enclosed in aluminum, while the slider is at the top, and the drive shaft interface is usually perpendicular to the side of the actuator.

滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)：滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)背后的基本原理實(shí)質(zhì)上是對絲杠驅(qū)動系統(tǒng)的改進(jìn)。滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)中，滾珠絲杠的旋轉(zhuǎn)驅(qū)動滾珠螺母/安裝支架，因?yàn)榻涌谑锹葜蜐L珠絲杠之間基本上是一個滾珠軸承系統(tǒng)，螺母中的硬化鋼球沿著螺柱的滾道滾動。與皮帶驅(qū)動執(zhí)行機(jī)構(gòu)類似，滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)的驅(qū)動部件封閉在鋁體內(nèi)，而機(jī)架在頂部移動。與皮帶驅(qū)動執(zhí)行器不同，驅(qū)動軸接口與滾珠絲杠對齊，位于執(zhí)行器末端。

Ball screw drive actuator: The basic principle behind the ball screw drive actuator is essentially the improvement of the lead screw drive system. In the ball screw drive actuator, the rotation of the ball screw drives the ball nut/mounting bracket. Because the interface between the stud and the ball screw is basically a ball bearing system, the hardened steel ball in the nut rolls along the raceway of the stud. Similar to the belt driven actuator, the drive part of the ball screw driven actuator is enclosed in the aluminum body, while the rack moves at the top. Unlike belt drive actuators, the drive shaft interface is aligned with the ball screw at the end of the actuator.

各自的優(yōu)勢和局限性：

Advantages and limitations:

對于需要長行程的應(yīng)用，通常皮帶驅(qū)動模組導(dǎo)軌機(jī)構(gòu)，這比使用類似長度的滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)更具成本效益。MJUNIT邁捷關(guān)鍵運(yùn)動部件，從而減少勞動密集型維護(hù)。盡管如此，為了確保扭矩的正確傳遞，皮帶的適當(dāng)張力至關(guān)重要，通常需要在定期維護(hù)期間重新張緊皮帶。

For applications requiring long stroke, it is usually more cost-effective to drive the guide mechanism of the module with a belt than to drive the actuator with a ball screw of similar length. MJUNIT takes advantage of key moving parts to reduce labor-intensive maintenance. However, in order to ensure the correct transmission of torque, the proper tension of the belt is essential and it is usually necessary to re tension the belt during regular maintenance.

或者，滾珠絲杠裝置與滾動滾珠軸承系統(tǒng)非常相似，因此能夠承載更高的負(fù)載并獲得更高的推力。因此，滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)在可能需要定位大型、重型負(fù)載的應(yīng)用中是理想的。達(dá)到高精度。根據(jù)具體的執(zhí)行機(jī)構(gòu)設(shè)計，可能需要定期潤滑滾珠絲杠。

Or, the ball screw device is very similar to the rolling ball bearing system, so it can carry higher loads and obtain higher thrust. Therefore, ball screw driven actuators are ideal for applications where large, heavy loads may need to be located. Achieve high accuracy. Depending on the specific actuator design, it may be necessary to lubricate the ball screw regularly.

滾珠絲杠

Ball screw

兩種執(zhí)行器類型之間的進(jìn)一步比較揭示了皮帶驅(qū)動執(zhí)行器的其他缺點(diǎn)，盡管其簡單。對于更高的負(fù)載/推力需求，需要更厚的皮帶。皮帶也容易受到?jīng)_擊負(fù)載的影響，盡管這一問題可能是通過對皮帶材料的精心選擇，在一定程度上減輕了皮帶的彈性，增加了強(qiáng)度。另外，由于皮帶容易伸長，滾珠絲杠執(zhí)行機(jī)構(gòu)的定位精度往往優(yōu)于皮帶驅(qū)動執(zhí)行機(jī)構(gòu)。正因?yàn)槿绱耍瑵L珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)更適合于在長時間內(nèi)要求高可靠性和重復(fù)性的應(yīng)用。滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)是高加速度和高推力要求的選擇，因?yàn)樵谶@種重復(fù)要求下，皮帶傳動皮帶輪很容易在轉(zhuǎn)子處滑動。

A further comparison between the two actuator types reveals other disadvantages of belt driven actuators, despite their simplicity. For higher load/thrust demands, thicker belts are required. The belt is also vulnerable to impact load, although this problem may be due to careful selection of belt materials, which to some extent reduces the elasticity of the belt and increases the strength. In addition, because the belt is easy to stretch, the positioning accuracy of the ball screw actuator is often better than that of the belt driven actuator. Because of this, the ball screw driven actuator is more suitable for applications requiring high reliability and repeatability for a long time. The ball screw drive actuator is the choice for high acceleration and high thrust requirements, because under such repeated requirements, the belt drive pulley is easy to slide at the rotor.

綜上所述，滾珠絲杠驅(qū)動執(zhí)行機(jī)構(gòu)在需要高負(fù)載和/或推力以及高精度定位的應(yīng)用中是更好的選擇。然而，由于其簡單，對于負(fù)載較低的應(yīng)用，尤其是需要更高速度的應(yīng)用，皮帶驅(qū)動執(zhí)行機(jī)構(gòu)仍然是更好的選擇。對于長行程應(yīng)用，皮帶驅(qū)動執(zhí)行機(jī)構(gòu)也可以是一種經(jīng)濟(jì)有用的解決方案。盡管在皮帶驅(qū)動和滾珠絲杠驅(qū)動的機(jī)械執(zhí)行機(jī)構(gòu)之間進(jìn)行選擇的任務(wù)可能令人望而生畏。乍一看，每個設(shè)計的優(yōu)點(diǎn)和缺點(diǎn)為每個獨(dú)特的應(yīng)用提供了明確的選擇。

To sum up, the ball screw driven actuator is a better choice in applications requiring high load and/or thrust and high-precision positioning. However, due to its simplicity, belt driven actuators are still a better choice for applications with lower loads, especially those requiring higher speeds. Belt driven actuators can also be a cost-effective solution for long stroke applications. Although the task of choosing between belt driven and ball screw driven mechanical actuators can be daunting. At first glance, the advantages and disadvantages of each design provide a clear choice for each unique application.

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