Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
Contactless measuring device for torque and/or angle of rotation on stationary or rotating shafts (10), comprising two preferably cylindrical bodies (20, 21) which are concentric to the shaft (10), are attached, with their respective end areas, to the shaft to rotate therewith and can be turned with respect to one another, also comprising a measuring system (19a, 19b) which determines from the relative position of the two bodies (20, 21), which changes with the turning angle, the torque and/or the angle of rotation transmitted from the shaft (10) over a predetermined shaft section and the bodies (20, 21 which can be turned with respect to one another and the measuring system (19a, 19b) are built up on a torsionally elastic tube (11') as the common carrier and the tube (11') is connected with its end areas to the shaft to rotate therewith, characterized in that the torsionally elastic tube (11') is mechanically separate and exhibits a press fit which can be turned and connects the tube halves ( 11 a, 11 b) on both sides.
Claim 2
Dependent Claim
175 words
Contactless measuring device for torque and/or angle of rotation on stationary or rotating shafts (10), comprising two preferably cylindrical bodies (20, 21) which are concentric to the shaft (10), are attached, with their respective end areas, to the shaft to rotate therewith and can be turned with respect to one another, also comprising a measuring system (19a, 19b) which determines from the relative position of the two bodies (20, 21), which changes with the turning angle, the torque and/or the angle of rotation transmitted from the shaft (10) over a predetermined shaft section and the bodies (20, 21 which can be turned with respect to one another and the measuring system (19a, 19b) are built up on a torsionally elastic tube (11') as the common carrier and the tube (11') is connected with its end areas to the shaft to rotate therewith, characterized in that the torsionally elastic tube (11') is mechanically separate and exhibits a press fit which can be turned and connects the tube halves ( 11 a, 11 b) on both sides.
Claim 3
Dependent Claim
61 words
Measuring device according to claim 1, characterized in that the relative overlap area of the two bodies (20, 21) changes with the turning angle for measuring according to the eddy current principle and at least one measuring coil (19a, 19b) detecting the eddy current effect caused by the bodies is located opposite the changing relative overlap area of the two bodies.
Claim 4
Dependent Claim
52 words
Measuring device according to claim 1 or 2, characterized in that the bodies are inner and outer slotted sleeves which can be turned relative to one another and are concentrically supported within each other and the opposite ends of which are permanently connected to the torsionally elastic tube (11') at a distance.
Claim 5
Dependent Claim
49 words
Measuring device according to one of claims 1 to 3, characterized in that the torsionally elastic tube (11') is connected with its outer end areas to the shaft (10) by means of screws, pins, clamping connections or adhesive connections, possibly with interposition of sleeves (13) compensating for diameter distances.
Claim 6
Dependent Claim
64 words
Measuring device according to one or more of claims 1 to 4, characterized in that, from the outside to the inside, a stationary housing (17) in the form of a tube section, ballbearings ( 16a, 16b) acting as stationary bearings, and, adjoining these, enlarged flange parts of the inner and outer slotted sleeves are attached on both sides to the torsionally elastic tube (11').
Claim 7
Dependent Claim
30 words
Measuring device according to claim 5, characterized in that the stationary housing (17) supports towards the inside a coil former (18) which carries at least one measuring coil (19a, 19b).
Claim 8
Dependent Claim
20 words
Measuring device according to one of claims 1 to 6, characterized in that the shaft is a torsion shaft (10).