TORQUE-MEASURING DEVICE OR JIG

• US 20130305842A1
• Filed: 08/16/2012
• Published: 11/21/2013
• Est. Priority Date: 05/18/2012
• Status: Active Grant

• Current Assignee: Atesteo Gmbh (INA-Holding Schaeffler GmbH & Co. KG)
• Original Assignee: Gif Gesellschaft Fuer Industrieforschung Mbh (INA-Holding Schaeffler GmbH & Co. KG)
• Inventors: MEUTER, Herbert
• Granted Patent: US 9,857,254 B2
• Time in Patent Office: Days
• US Class Current: 73/862.192
• CPC Class Codes: G01L 3/108 involving resistance strain gauges

Abstract

A torque-measuring device with an acceleration transducer yields more informative measured results. The acceleration transmitter may be inseparably fastened to a carrier which in turn is inseparably joined to a torsion member. The torsion member and the carrier may be formed in one piece with one another. The torsion member may be a shaft and the carrier may be a flange.

Claims

1. A torque-measuring device, comprising at least one acceleration transducer.

2. The torque-measuring device according to claim 1, wherein the at least one acceleration transducer is inseparably fastened to a carrier and the torque-measuring device comprises a torsion member inseparably joined to the carrier.

3. The torque-measuring device according to claim 2, wherein the torsion member and the carrier are formed in one piece with one another.

4. The torque-measuring device according to claim 2, wherein the torsion member is a shaft and the carrier a flange.

5. The torque-measuring device according to claim 1, wherein the torque-measuring device has an axis of rotation and measures torques around the axis of rotation and wherein one active axis of the at least one acceleration transducer is aligned in a circumferential direction around the axis of rotation.

6. The torque-measuring device according to claim 5, wherein the at least one acceleration transducer outputs a measured signal dependent on speed of revolution and wherein the torque-measuring device comprises a second acceleration transducer wherein said second acceleration transducer has an identical design to the at least one acceleration transducer and an installation direction disposed oppositely to the at least one acceleration transducer in a radial direction or wherein said second acceleration transducer has a radially aligned active axis with the at least one acceleration transducer for compensation of speed of revolution.

7. The torque-measuring device according to claim 1, wherein the at least one acceleration transducer is fastened to a subassembly of the torque-measuring device loaded with a torque.

8. The torque-measuring device according to claim 7, wherein the at least one acceleration transducer comprises an encapsulating housing fastened to the subassembly loaded with torque.

9. The torque-measuring device according to claim 8, wherein the encapsulating housing comprises a seismic mass.

10. A torque-measuring jig comprising a torque-measuring device, a rotor and a stator, said torque-measuring device comprising at least one acceleration transducer disposed on the rotor, wherein a contactless data transmission is provided between the rotor and the stator.

11. The torque-measuring jig according to claim 10, wherein the contactless data transmission transmits data dependent both on torque and acceleration.

12. The torque-measuring jig according to claim 11, wherein the contactless data is configured serially or with first and second separate channels, wherein one of said channels transmits data dependent on the torque and another of said channels transmits data dependent on the acceleration and the transmitters of said channels on a torque-measuring device side are disposed on a same subassembly of the torque-measuring device.