温度对滚珠丝杆的影响

Effect of temperature on ball screw

滚珠丝杆运转时，温度会影响到机械传动系统的精度，特别是高速且高精度的机械。影响滚珠丝杆温度升高的因素有预压力、润滑和预拉。下面导轨丝杠厂家为您讲解一番内容：

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:

预压力的影响：为了避免造成机械传动系统的任何失步，提高螺帽刚性是很重要的然而高提高螺帽刚性，必须使螺帽预压力达到一定水准。施加预压力于螺帽会增加螺牙的摩擦扭矩，并使工作时的温度升高。

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.

润滑的影响：润滑油的选择直接影响滚珠丝杆的温升，雷尼摩申的滚珠丝杆须采以油或者油脂其中一项的润滑，一般建议以轴承润滑油为滚珠丝杆油润滑，油脂则建议以锂皂基的油脂。油品黏度选用是依操作速度、工作速度以及符合情形来做选择。

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.

预拉的影响：滚珠丝杆温度升高时，热应力效应会使滚珠丝杆伸长，使丝杆的长度变得不稳定。其伸长量可借由预拉来补偿；过大的预拉会烧坏支撑轴承，若丝杆的直径超过50mm时也不适合做预拉，丝杆直径大就需要做预拉力，因此导致支撑轴承过热而烧坏。

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.

温度对直线导轨的影响

Influence of temperature on linear guide

若部件在130℃以上的高温下长期运行的话，就会降低直线导轨的使用寿命。不管是设备所处的环境高温，还是直线导轨在快速给进时的温度，都会让直线导轨处于异常的条件下，而高温同样会影响直线导轨的润滑剂。引起高温一般是由以下情况：

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、润滑剂选择不当，润滑不足或者过分润滑：有很多设备制造商觉得比较粘稠的润滑剂会使设备运行更长时间而不需要再次润滑.粘稠的润滑剂会使滑块和导轨的摩擦力增大，增加其内部温度，反之润滑剂太过稀疏也不行，这样会使得润滑剂更快的流失，蒸发，导致润滑不足，后，导致高温，烧死。所以，一般都会强调设备制造商能定期对传动件进行保养，保证雷尼摩申导轨的寿命。

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、粉尘过大：一些设备使用的环境，因为粉尘过大，导致滑块滚动部位进入大量肉眼看不到的杂质，这样也会增加其摩擦系数，影响其预压以及间隙，严重时，会对滚动体造成腐蚀，后导致卡死，电机烧死。

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.

若想了解更多关于直线导轨、滚珠丝杆等直线传动部件的相关信息具体可进入我们的网站http://www.jngongrun.com进行咨询了解！

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