DE20220273U1 - Torque sensor for an electric motor comprises a monolithic disk shaped receiving component with connection legs linking inner and outer flanges and having sensors attached to them, said component being inserted in the motor drive - Google Patents

Torque sensor for an electric motor comprises a monolithic disk shaped receiving component with connection legs linking inner and outer flanges and having sensors attached to them, said component being inserted in the motor drive

Info

Publication number
DE20220273U1
DE20220273U1 DE20220273U DE20220273U DE20220273U1 DE 20220273 U1 DE20220273 U1 DE 20220273U1 DE 20220273 U DE20220273 U DE 20220273U DE 20220273 U DE20220273 U DE 20220273U DE 20220273 U1 DE20220273 U1 DE 20220273U1
Authority
DE
Germany
Prior art keywords
torque sensor
component
torque
electric motor
shaped receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE20220273U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsches Zentrum fuer Luft und Raumfahrt eV filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Priority to DE20220273U priority Critical patent/DE20220273U1/en
Publication of DE20220273U1 publication Critical patent/DE20220273U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/14—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
    • G01L3/1407—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs
    • G01L3/1428—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs using electrical transducers
    • G01L3/1457—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs using electrical transducers involving resistance strain gauges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulator (AREA)

Abstract

Torque sensor in the form of a monolithic disk shaped receiving component (1). The sensor comprises outer (11) and inner (10) circular flanges, with force injection points, that are linked by radial connecting legs. Each connecting leg comprises a lower recess (15) with a u-shaped section and a thin membrane type connection on the plane surface of which is attached a measurement sensor. Approximately radially directed wall sections of the connecting legs have different wall strengths and so varying elasticity and stiffness. The invention also relates to a corresponding method and arrangement for determining the torque of an electric motor drive that is inserted prior to the motor gear train.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (4)

1. Drehmomentsensor in Form eines monolithischen Aufnahme­ teils, dadurch gekennzeichnet, dass der Drehmomentsensor als ein kreiszylinderförmiger Hohlzylinder (1) mit an einem Ende in diesen vorstehenden Innenflansch (3) mit ersten Kraftein­ leitungsstellen (4) und an dem anderen Ende vorgesehenen Au­ ßenflansch (5) mit zweiten Krafteinleitungsstellen (6) ausge­ bildet ist, wobei in der Außenmantelfläche (2) des Hohlzylin­ ders (1) mindestens eine plane Abflachung (7) ausgebildet ist, auf welcher entsprechend ausgerichtete Dehnungsmeßstrei­ fen (8) aufgebracht sind, die nach dem Prinzip einer Wheat­ stone-Brücke jeweils zu Viertel-, Halb- oder Voll-Brücken in der Weise geschaltet sind, dass aus erhaltenen Messwerten ein Drehmoment ermittelbar ist.1. Torque sensor in the form of a monolithic recording part, characterized in that the torque sensor as a circular cylindrical hollow cylinder ( 1 ) with at one end in this projecting inner flange ( 3 ) with first force line points ( 4 ) and at the other end provided outer flange ( 5 ) with second force introduction points ( 6 ) is formed, with in the outer circumferential surface ( 2 ) of the hollow cylinder ( 1 ) at least one flat flattening ( 7 ) is formed, on which appropriately aligned strain gauges ( 8 ) are applied, which are applied after Principle of a Wheat stone bridge are connected to quarter, half or full bridges in such a way that a torque can be determined from the measured values obtained. 2. Drehmomentsensor nach Anspruch 1, dadurch gekennzeichnet, dass in der kreiszylinderförmigen Außenmantelfläche (2) des Hohlzylinders (1) in gleichen Winkelabständen zwei oder vier plane Abflachungen (7) ausgebildet sind.2. Torque sensor according to claim 1, characterized in that in the circular cylindrical outer surface ( 2 ) of the hollow cylinder ( 1 ) two or four flat flats ( 7 ) are formed at equal angular intervals. 3. Drehmomentsensor nach einem der Ansprüche 1 oder 2 zum Messen von Drehmomenten in Robotergelenken.3. Torque sensor according to one of claims 1 or 2 for Measuring torques in robot joints. 4. Drehmomentsensor nach einem der Ansprüche 1 oder 2 zur Verwendung in rotatorischen drehmomentgeregelten Antrieben oder Servoantrieben.4. Torque sensor according to one of claims 1 or 2 for Use in rotary torque-controlled drives or servo drives.
DE20220273U 2002-04-12 2002-04-12 Torque sensor for an electric motor comprises a monolithic disk shaped receiving component with connection legs linking inner and outer flanges and having sensors attached to them, said component being inserted in the motor drive Expired - Lifetime DE20220273U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20220273U DE20220273U1 (en) 2002-04-12 2002-04-12 Torque sensor for an electric motor comprises a monolithic disk shaped receiving component with connection legs linking inner and outer flanges and having sensors attached to them, said component being inserted in the motor drive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20220273U DE20220273U1 (en) 2002-04-12 2002-04-12 Torque sensor for an electric motor comprises a monolithic disk shaped receiving component with connection legs linking inner and outer flanges and having sensors attached to them, said component being inserted in the motor drive
DE10217016 2002-04-12

Publications (1)

Publication Number Publication Date
DE20220273U1 true DE20220273U1 (en) 2003-09-04

Family

ID=28042870

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20220273U Expired - Lifetime DE20220273U1 (en) 2002-04-12 2002-04-12 Torque sensor for an electric motor comprises a monolithic disk shaped receiving component with connection legs linking inner and outer flanges and having sensors attached to them, said component being inserted in the motor drive

Country Status (1)

Country Link
DE (1) DE20220273U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105698981A (en) * 2016-01-13 2016-06-22 西安理工大学 Sensor used for measuring revolute pair counterforce
CN110170988A (en) * 2015-07-22 2019-08-27 Cmr外科有限公司 Gear for robot arm encapsulates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110170988A (en) * 2015-07-22 2019-08-27 Cmr外科有限公司 Gear for robot arm encapsulates
CN110170988B (en) * 2015-07-22 2022-07-26 Cmr外科有限公司 Torque sensor
US11559882B2 (en) 2015-07-22 2023-01-24 Cmr Surgical Limited Torque sensor
CN105698981A (en) * 2016-01-13 2016-06-22 西安理工大学 Sensor used for measuring revolute pair counterforce

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20031009

R150 Term of protection extended to 6 years

Effective date: 20050428

R081 Change of applicant/patentee

Owner name: DEUTSCHES ZENTRUM FUER LUFT- UND RAUMFAHRT E.V, DE

Free format text: FORMER OWNER: DEUTSCHES ZENTRUM FUER LUFT- UND RAUMFAHRT E.V., 51147 KOELN, DE

Effective date: 20060621

R151 Term of protection extended to 8 years

Effective date: 20080421

R152 Term of protection extended to 10 years

Effective date: 20100520

R071 Expiry of right
R071 Expiry of right