溫度對(duì)滾珠絲桿的影響

Effect of temperature on ball screw

滾珠絲桿運(yùn)轉(zhuǎn)時(shí)，溫度會(huì)影響到機(jī)械傳動(dòng)系統(tǒng)的精度，特別是高速且高精度的機(jī)械。影響滾珠絲桿溫度升高的因素有預(yù)壓力、潤(rùn)滑和預(yù)拉。下面導(dǎo)軌絲杠廠家為您講解一番內(nèi)容：

When the ball screw runs, the temperature will affect the accuracy of the mechanical transmission system, especially for high-speed and high-precision machinery. The factors that affect the temperature rise of ball screw include preload, lubrication and pretension. The manufacturer of guide rail lead screw will explain the following contents for you:

預(yù)壓力的影響：為了避免造成機(jī)械傳動(dòng)系統(tǒng)的任何失步，提高螺帽剛性是很重要的然而高提高螺帽剛性，必須使螺帽預(yù)壓力達(dá)到一定水準(zhǔn)。施加預(yù)壓力于螺帽會(huì)增加螺牙的摩擦扭矩，并使工作時(shí)的溫度升高。

Effect of preload: In order to avoid any out-of-step of the mechanical transmission system, it is important to improve the nut rigidity. However, to improve the nut rigidity, the nut preload must reach a certain level. Applying preload on the nut will increase the friction torque of the screw tooth and increase the temperature during operation.

潤(rùn)滑的影響：潤(rùn)滑油的選擇直接影響滾珠絲桿的溫升，雷尼摩申的滾珠絲桿須采以油或者油脂其中一項(xiàng)的潤(rùn)滑，一般建議以軸承潤(rùn)滑油為滾珠絲桿油潤(rùn)滑，油脂則建議以鋰皂基的油脂。油品黏度選用是依操作速度、工作速度以及符合情形來做選擇。

Influence of lubrication: the selection of lubricating oil directly affects the temperature rise of the ball screw. The ball screw of Renimoshen must be lubricated with oil or grease. Generally, it is recommended to use bearing lubricating oil as the ball screw oil for lubrication, and the grease is recommended to use lithium soap based grease. The viscosity of oil is selected according to the operating speed, working speed and compliance.

預(yù)拉的影響：滾珠絲桿溫度升高時(shí)，熱應(yīng)力效應(yīng)會(huì)使?jié)L珠絲桿伸長(zhǎng)，使絲桿的長(zhǎng)度變得不穩(wěn)定。其伸長(zhǎng)量可借由預(yù)拉來補(bǔ)償；過大的預(yù)拉會(huì)燒壞支撐軸承，若絲桿的直徑超過50mm時(shí)也不適合做預(yù)拉，絲桿直徑大就需要做預(yù)拉力，因此導(dǎo)致支撐軸承過熱而燒壞。

Effect of pretension: when the temperature of the ball screw increases, the thermal stress effect will make the ball screw elongate and make the length of the screw become unstable. Its elongation can be compensated by pretension; Excessive pretension will burn the support bearing. If the diameter of the screw rod exceeds 50 mm, it is not suitable for pretension. If the diameter of the screw rod is large, it is necessary to do pretension. Therefore, the support bearing will be burnt due to overheating.

溫度對(duì)直線導(dǎo)軌的影響

Influence of temperature on linear guide

若部件在130℃以上的高溫下長(zhǎng)期運(yùn)行的話，就會(huì)降低直線導(dǎo)軌的使用壽命。不管是設(shè)備所處的環(huán)境高溫，還是直線導(dǎo)軌在快速給進(jìn)時(shí)的溫度，都會(huì)讓直線導(dǎo)軌處于異常的條件下，而高溫同樣會(huì)影響直線導(dǎo)軌的潤(rùn)滑劑。引起高溫一般是由以下情況：

The service life of the linear guide rail will be reduced if the components are operated for a long time at a high temperature above 130 ℃. Both the high ambient temperature of the equipment and the temperature of the linear guide during rapid feeding will make the linear guide under abnormal conditions, and the high temperature will also affect the lubricant of the linear guide. High temperature is generally caused by the following conditions:

1、潤(rùn)滑劑選擇不當(dāng)，潤(rùn)滑不足或者過分潤(rùn)滑：有很多設(shè)備制造商覺得比較粘稠的潤(rùn)滑劑會(huì)使設(shè)備運(yùn)行更長(zhǎng)時(shí)間而不需要再次潤(rùn)滑.粘稠的潤(rùn)滑劑會(huì)使滑塊和導(dǎo)軌的摩擦力增大，增加其內(nèi)部溫度，反之潤(rùn)滑劑太過稀疏也不行，這樣會(huì)使得潤(rùn)滑劑更快的流失，蒸發(fā)，導(dǎo)致潤(rùn)滑不足，后，導(dǎo)致高溫，燒死。所以，一般都會(huì)強(qiáng)調(diào)設(shè)備制造商能定期對(duì)傳動(dòng)件進(jìn)行保養(yǎng)，保證雷尼摩申導(dǎo)軌的壽命。

1. Improper selection of lubricant, insufficient lubrication or excessive lubrication: many equipment manufacturers feel that the more viscous lubricant will make the equipment run for a longer time without re-lubrication. The viscous lubricant will increase the friction between the sliding block and the guide rail, and increase its internal temperature. On the contrary, the lubricant is too sparse, which will make the lubricant lose faster, evaporate, cause insufficient lubrication, and then cause high temperature and burn. Therefore, it is generally emphasized that the equipment manufacturer can regularly maintain the transmission parts to ensure the service life of the Renimoshen guide rail.

2、粉塵過大：一些設(shè)備使用的環(huán)境，因?yàn)榉蹓m過大，導(dǎo)致滑塊滾動(dòng)部位進(jìn)入大量肉眼看不到的雜質(zhì)，這樣也會(huì)增加其摩擦系數(shù)，影響其預(yù)壓以及間隙，嚴(yán)重時(shí)，會(huì)對(duì)滾動(dòng)體造成腐蝕，后導(dǎo)致卡死，電機(jī)燒死。

2. Excessive dust: in the environment where some equipment is used, due to the excessive dust, the sliding block rolling part enters a large number of invisible impurities, which will also increase its friction coefficient, affect its preload and clearance, and in serious cases, cause corrosion to the rolling body, and then cause jamming and motor burning.

若想了解更多關(guān)于直線導(dǎo)軌、滾珠絲桿等直線傳動(dòng)部件的相關(guān)信息具體可進(jìn)入我們的網(wǎng)站http://www.idczc.com進(jìn)行咨詢了解！

If you want to know more about linear guide rail, ball screw and other linear transmission components, please visit our website http://www.idczc.com Consult and understand!