%0 Book %1 Wurthner.2003 %A Würthner, Maik %B Institutsbericht %D 2003 %K from:thomasherzig dichtungstechnik dissertation M_Würthner from:brunomueller from:samuelschwamm ima %T Rotierende Wellen gegen Kühlschmierstoff und Partikel berührungsfrei abdichten: Dissertation %V Nr. 108 %X The working-spindle of a machine tool is one of the most important components in the line of force. It has a large influence on the static and dynamic behaviour of the machine tool and determines the achievable production quality and the productivity of the machine tool. Under all circumstances the bearings of the spindle must be protected against cooling lubricants and chips. The requirements on the spindle sealing systems are still increasing. A cause for it is the chipping enhancement of modern machine tools. Among other things this is possible with high speed spindles and higher pressure on the supply of the cooling lubricants. Together with the stronger splinter accumulation in the work area, harder conditions for the sealing systems are the result. New machine technologies as for example the method of dry processing leads to a dry, solid load on the sealing systems and thus to a new task of sealing. Superordinate goal of this research work are secured guidelines, based on experimental results, for non-contact rotary sealing systems for extreme conditions by cooling lubricants and/or solids. The contamination behaviour in the interior zone of liquid-collecting labyrinth seals can be improved with the described design details. With suitable designed air-barrier seals there is no penetration of liquid into the sealing system, which leads to solid deposits in the internal area of the seal. Dry solids or dust, for example produced by dry processing, cannot be sealed with liquid-collecting labyrinth seals without an air-barrier. In contrast air-barrier seals are suitable. Independent from the conditions (dry solids or dust, solid liquid mixtures or extreme liquid splashing) there is one air-barrier seal design suitable for the non-contact sealing of rotating spindles. The compiled guidelines, the conclusions and the full-scale design example of an airbarrier seal for a grease lubricated spindle bearing makes it easier to understand the function of non-contact rotary sealing systems. Additionally a method of calculation is presented to estimate the operating parameters of air-barrier seals. The results of this work are not only valid for the non-contact sealing of rotating spindles for machine tools, they are also suitable for other applications in mechanical engineering. %@ 3-936100-08-X

@book{Wurthner.2003, abstract = {The working-spindle of a machine tool is one of the most important components in the line of force. It has a large influence on the static and dynamic behaviour of the machine tool and determines the achievable production quality and the productivity of the machine tool. Under all circumstances the bearings of the spindle must be protected against cooling lubricants and chips. The requirements on the spindle sealing systems are still increasing. A cause for it is the chipping enhancement of modern machine tools. Among other things this is possible with high speed spindles and higher pressure on the supply of the cooling lubricants. Together with the stronger splinter accumulation in the work area, harder conditions for the sealing systems are the result. New machine technologies as for example the method of dry processing leads to a dry, solid load on the sealing systems and thus to a new task of sealing. Superordinate goal of this research work are secured guidelines, based on experimental results, for non-contact rotary sealing systems for extreme conditions by cooling lubricants and/or solids. The contamination behaviour in the interior zone of liquid-collecting labyrinth seals can be improved with the described design details. With suitable designed air-barrier seals there is no penetration of liquid into the sealing system, which leads to solid deposits in the internal area of the seal. Dry solids or dust, for example produced by dry processing, cannot be sealed with liquid-collecting labyrinth seals without an air-barrier. In contrast air-barrier seals are suitable. Independent from the conditions (dry solids or dust, solid liquid mixtures or extreme liquid splashing) there is one air-barrier seal design suitable for the non-contact sealing of rotating spindles. The compiled guidelines, the conclusions and the full-scale design example of an airbarrier seal for a grease lubricated spindle bearing makes it easier to understand the function of non-contact rotary sealing systems. Additionally a method of calculation is presented to estimate the operating parameters of air-barrier seals. The results of this work are not only valid for the non-contact sealing of rotating spindles for machine tools, they are also suitable for other applications in mechanical engineering.}, added-at = {2021-03-25T17:56:22.000+0100}, author = {Würthner, Maik}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/229cd6390b7d015b03063d031167d11eb/ima-publ}, institution = {Universität Stuttgart, Institut für Maschinenelemente}, interhash = {71cd1c6e2cf717ac2a318d24a2bc2aa0}, intrahash = {29cd6390b7d015b03063d031167d11eb}, isbn = {3-936100-08-X}, keywords = {from:thomasherzig dichtungstechnik dissertation M_Würthner from:brunomueller from:samuelschwamm ima}, note = 244, series = {Institutsbericht}, timestamp = {2021-03-25T16:56:22.000+0100}, title = {Rotierende Wellen gegen Kühlschmierstoff und Partikel berührungsfrei abdichten: Dissertation}, volume = {Nr. 108}, year = 2003 }