Linear guide rolling guidance technology

Linear guide rolling guidance technology
The development of high-speed and high acceleration/deceleration rolling linear guide pairs. In recent years, the high-speed development of feed rates in various machinery such as CNC machine tools, robots, and electronic mechanical devices has been rapid, increasing by 2-3 times. However, the high-speed requirements of rolling linear guide pairs used in these machinery are even higher. The basic requirements for achieving high speed and high acceleration/deceleration of rolling linear guide pairs are:
① There is no contact between rolling elements;
② Improved lubrication performance and long-term maintenance characteristics;
③ Smooth motion of the entire rolling element;
④ A circulation mechanism with low impact force. Rolling element retainers are used in the guide rail pair to evenly arrange the rolling elements and smoothly perform cyclic motion. This makes the guide rail pair have the characteristics of low noise, maintenance free, long service life, and can perform ultra high speed linear motion. This guide rail pair achieves a noise level of less than 60dB at the speed of movement, and reduces the amplitude of friction fluctuations to 1/5 of previous products. In addition, it passed a no-load test with 3ml of grease and 3000km of operation.
Self lubricating maintenance free device. In order to ensure the long-term stable operation and maintenance of rolling components, lubrication and maintenance free requirements are very important. Therefore, the company has developed a "series of lubrication devices" using resin material "solid oil" containing lubricating oil for rolling linear guide pairs. The seals in the device contain 70% lubricating oil by weight, and the lubricating oil slowly overflows to maintain long-term lubrication ability.
The development trend of roller type rolling linear guide pairs is characterized by long service life, high rigidity, and low noise. The development trend of roller type rolling linear guide pairs mainly focuses on lubrication issues. Regular oil injection is necessary, but the device is complex and costly. For this purpose, a capillary shaped lubricant was developed and installed inside the slider body, which can achieve a travel of 5 years or 20000 km without maintenance. The developed QZ lubricator includes an oil tank with fiber mesh and sealing components, which also meets the technical requirement of long-term maintenance free lubrication for the guide rail pair.