LOAD MEASUREMENT DEVICE AND METHOD FOR DETERMINING LOAD

• US 20170322095A1
• Filed: 11/23/2015
• Published: 11/09/2017
• Est. Priority Date: 11/27/2014
• Status: Active Grant

• Current Assignee: ABet SKF
• Original Assignee: ABet SKF
• Inventors: Lang, Defeng, Ahmer, Muhammaad, de Wit, Frank
• Granted Patent: US 10,788,381 B2
• Time in Patent Office: Days
• CPC Class Codes: F16J 15/3296 Arrangements for monitoring the condition or operation of elastic sealings F16J15/326 takes precedence; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness
• CPC Class Codes: G01L 1/005 by electrical means and not provided for in G01L1/06 - G01L1/22
• CPC Class Codes: G01L 1/044 of leaf springs
• CPC Class Codes: G01L 1/048 of torsionally deformable elements
• CPC Class Codes: G01L 5/0009 Force sensors associated with a bearing testing of bearings G01M13/04
• CPC Class Codes: G01P 15/18 in two or more dimensions

Abstract

The invention relates to a load measuring device including a deformable component configured to be deformed under a load to be measured and a sensor assembly attached to a first portion of the deformable component and to a method for determining load using such a sensor assembly. It is proposed that the sensor assembly includes at least one acceleration sensor configured to detect a change in an orientation of the first portion with regard to the direction of gravity and that the deformable component is formed as a seal configured to be in sliding contact with a component configured to rotate in relation to the seal.

Claims

1. A load measuring device including a deformable component configured to be deformed under a load to be measured and a sensor assembly attached to a first portion of the deformable component, wherein

the sensor assembly includes at least one acceleration sensor configured to detect a change in an orientation of the first portion with regard to the direction of gravity, and wherein

the deformable component is formed as a seal configured to be in sliding contact with a component configured to rotate in relation to the seal.

2. The load measuring device according to claim 1, wherein

the seal has a profile with an inclined portion connecting a fixing portion of the seal supported by a metallic flange with a contact portion of the seal.

3. The load measuring device according to claim 1, wherein

the component configured to rotate in relation to the seal is an inner ring of a bearing.

4. The load measuring device according to claim 1, wherein

the component configured to rotate in relation to the seal is a rotating shaft.

5. The load measuring device according to claim 1, wherein

the acceleration sensor is formed as a semiconductor based 3-axis acceleration sensor.

6. The load measuring device according to claim 1, wherein

the sensor assembly includes at least two acceleration sensors attached to different portions of the component.

8. The load measuring device according to claim 1,

further comprising a data processing device configured to calculate a load acting on the deformable component based on the signals obtained from the sensor assembly.

7. The load measuring device according 6, wherein

the deformable component is a torque bar, wherein

the two acceleration sensors are attached to opposite ends of the torque bar.

9. A method for determining a load acting on a deformable component, the method comprising the steps of:

using signals of an acceleration sensor to determine the load,

attaching the acceleration sensor is attached to a first portion of the component in order to detect a change in an orientation of the first portion with regard to the direction of gravity, wherein

the deformable component is formed as a seal configured to be in sliding contact with a component configured to rotate in relation to the seal.