Design of self-lubricating linear guide rail

Design of self-lubricating linear guide rail
The function of a linear guide is to support and guide moving parts to perform reciprocating linear motion in a given direction. According to the friction properties, linear motion guides can be divided into sliding friction guides, rolling friction guides, elastic friction guides, fluid friction guides, and other types. For fluid lubrication of sliding guide surfaces, errors in motion accuracy cannot be avoided due to the floating of the oil film.
In the vast majority of cases, fluid lubrication is limited to the boundary region, and direct friction generated by metal contact is unavoidable. In this friction, a large amount of energy is wasted through frictional losses. On the contrary, rolling contact, due to its low frictional energy consumption, reduces the frictional loss of the rolling surface, thus enabling the linear rolling guide system to remain in a high-precision state for a long time.
Meanwhile, due to the minimal use of lubricating oil, in most cases only grease lubrication is sufficient, making it very easy to design and maintain lubrication systems for machine tools. The slider of the rolling linear guide has a slight or negative gap with the guide rail, which can greatly improve the overall rigidity and motion accuracy of the guide rail. The slider and linear guide rail are tightly integrated into a whole, with high rigidity and equal load in all directions, thus having a large load bearing capacity.
The innovative design of the self-lubricating module product for linear guides, combined with the concept of detachable, enables the linear guides to extend their maintenance cycle. The self-lubricating module has the characteristics of cost saving, cleaning and environmental protection. It is flexible to install, easy to disassemble and maintain, and the transparent oil tank design allows for easy inspection of the oil level and selection of corresponding lubricating oil. Can be used in special environments such as dust, harsh weather, and water environments.
The linear guide self lubrication module not only enhances the convenience of user maintenance, but its modular design also allows customers to directly purchase the self lubrication module kit and install it on the slider to achieve the function of lubricating parts. Linear guides require sufficient pre added negative numbers to improve motion accuracy and accuracy retention, which are contradictory aspects. If the working time is too long, the steel balls begin to wear out, and the preload acting on the steel balls begins to weaken, resulting in a decrease in the precision of the machine tool's working parts. If the linear guide rail wants to maintain its initial accuracy, the guide rail bracket must be replaced, or even the guide rail must be replaced. If the guide rail system has already been preloaded. The system accuracy has been lost, the only way is to replace the rolling elements.