Spindle drives - a lubrication challenge
With the new “ScrewMaster 10000” screw drive test bench, different threaded or ball screw drives can be tested under realistic conditions.
Lubrication poses a challenge for these systems. Due to the relatively large adjustment movements, the grease is conveyed to the edges and may then no longer be sufficiently available in the center of the spindle. This leads to insufficient lubrication and ultimately to failure. This is exactly what we are investigating in the FVA project 987-I and -II, which we are carrying out with our partners at Nuremberg Institute of Technology.
The test bench – like all those developed at KTM in recent years – is #Tribometry4.0-capable.
This means that extensive measurement technology and a camera system with AI-based image analysis help to understand tribological systems instead of just producing characteristic values.
Maximum axial force
10 kN
Maximum temperature
80 °C
Maximum stroke
250 mm
Maximum travel speed
180 mm/s
No standards currently available.
However, an application-oriented test program was developed in the FVA project 987-I.
Voltage
400 V
Frequency
50 … 60 Hz
Power
4.5 kVA at 3000 rpm
Fuse
32 A
Dimensions
2000 mm x 1000 mm x 1400 mm
Weight
approx. xx kg
Forces
Axial force
Temperature
IR temperature sensor that detects the temperature of the spindle nut at the transition to the spindle
Frictional torque
Torque measurement by means of reaction force measurement
Wear
Determining the backlash as a wear parameter
Video documentation
Camera system; shooting mode to create time-lapse video. AI-supported fat detection.
- Currently designed for trapezoidal thread T17/2;
- Ball screw drive in preparation (Dold 1001-204-0300 (SFU1204))