Bosch-Rexroth: Smart Calculation of Planetary Screw Assemblies
May 18, 2021
Fast and error-free dimensioning: Intuitive software simplifies complex calculations for heavy-duty screw drives.
- – Optimized dimensioning of robust planetary screw assemblies PLSA
- – Automatic calculation of lubrication intervals and quantities
- – Time savings and error prevention through new functions
Intuitive parameterization instead of rummaging through thick catalogs: With the latest extension of the proven Linear Motion Designer (LMD) tool, Bosch Rexroth is setting new standards for the calculation of screw drives and linear guides. Service life and lubricant usage can be determined with just a few clicks. Thanks to seamless data transfer to the configurator, the linear motion technology can be dimensioned and documented much more quickly and conveniently.
The performance of the extended LMD calculation tool is particularly evident in the planetary screw assemblies PLSA . For example, important target variables such as travel speed, revolutions or cycle time can be intuitively parameterized in logical steps. If users enter certain framework data such as stroke and process time, they immediately receive the appropriate result variables. Another practical feature concerns the end shape of the screw: After selecting it, the LMD immediately displays the resulting drive torque.
Error-free dimensioning and optimized use of resources
As a result, the targeted user guidance with product-specific calculation algorithms in the background avoids critical design errors. The improved functions of the LMD therefore go far beyond a purely DIN-compliant life expectancy calculation. In addition, the interactive software tool automatically calculates the necessary lubrication intervals and quantities on the basis of the environment and operating data entered, if required. This optimizes maintenance and saves resources.
The documentation is also exemplary. At the end of the calculations, the user automatically receives a detailed PDF file with an overview of all technical information. Overall, the effort required for product configuration can be reduced to a minimum.
Seamless connection to the configurator
Bosch Rexroth provides additional time savings with the seamless connection to the configurator. Among other things, the data and dimensions of the end bearing defined in the LMD are also transferred directly. This means that even when switching to the configurator, it is no longer necessary to refer to the product catalog. The complete screw drive unit can be ordered more quickly.
Comprehensive product range for heavy duty applications
Planetary screw assemblies PLSA are designed for high load capacities and dynamics: Compared to conventional preloaded systems, the load ratings of the preloaded single nut are twice as high. The result is an eightfold increase in nominal life. With screw diameters from 20 to 75 mm, the PLSAs cover a finely graduated, wide range of forces in the top performance range. With travel speeds of up to 50 m/min and dynamic load capacities of up to 544 kN, they open up a wide range of applications. PLSAs are used, among other things, in the automotive sector to apply adhesives as part of dispensing tasks, for example when bonding windows. Other typical applications include testing machines, tube bending machines, servo presses or packaging machines.
