DE2452925A1 - Traction measuring bearing with bearing box of standard dimensions - has cylindrical axial extension acting as overload stop - Google Patents

Traction measuring bearing with bearing box of standard dimensions - has cylindrical axial extension acting as overload stop

Info

Publication number
DE2452925A1
DE2452925A1 DE19742452925 DE2452925A DE2452925A1 DE 2452925 A1 DE2452925 A1 DE 2452925A1 DE 19742452925 DE19742452925 DE 19742452925 DE 2452925 A DE2452925 A DE 2452925A DE 2452925 A1 DE2452925 A1 DE 2452925A1
Authority
DE
Germany
Prior art keywords
tensile force
force measuring
bearing
support
bearing according
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.)
Pending
Application number
DE19742452925
Other languages
German (de)
Inventor
Erich Brosa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19742452925 priority Critical patent/DE2452925A1/en
Priority to DE19752521699 priority patent/DE2521699A1/en
Priority to DE19752522848 priority patent/DE2522848A1/en
Publication of DE2452925A1 publication Critical patent/DE2452925A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0009—Force sensors associated with a bearing
    • G01L5/0019—Force sensors associated with a bearing by using strain gages, piezoelectric, piezo-resistive or other ohmic-resistance based sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/522—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
    • G01G19/18—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/06—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)

Abstract

The axial extension of the bearing box has on its free side a support which carries on flexible arms a holder for a plain or roller bearing. The support leaves a small space free up to the cylindrical extension, so as to enable the load on the bearing to be determined from the elastic deformation of the supporting arms. The cylindrical extension is rotatable and lockable in the flange and is set up to accommodate an electrical or mechanical odometer. The cylindrical extension can have an elastic shaft packing and can form an enclosed space through which coolant can flow or which can be filled with buffer gas.

Description

Zutraftme ß1Fser Es sind Zugkraftmeßlager bekannt, bei denen ein Wälzlager in einer elastischen Halterung in gleicher Ebene eingebaut ist, dessen Auslenkung von einem Kraftaufnehmer gemessen wird. Diese können Kräfte nur in einer Komponente messen und sind in gleicher Ebene wie das Lager angeordnet0 Ihr baulicher Umfang ist so groß, daß sie gegen Normallager nicht ausgewechselt werden können, bei gleichen Wälzlagerdimensionen. Zulraftme ß1Fser There are Zugkraftmeßlager known in which a Rolling bearing is installed in an elastic bracket in the same plane, its Deflection is measured by a force transducer. These powers can only be in one Measure component and are arranged in the same plane as the warehouse0 your structural The scope is so large that they cannot be exchanged for normal bearings, with the same rolling bearing dimensions.

Die vorliegende Erfindung hält sich insbesondere an die Einbauabmessungen genormter Flansch- 2 und Stehlager 17 in Bezug auf die Aufnahmegrößen, Lochabstände, Wellendurchmesser und Abstand des Wålzlagers von der Anlagefläche so, daß der Einbau des Zugkraftmeßlagers ohne weiteres möglich ist, im Austausch gegen ein Normallager.The present invention is particularly concerned with the installation dimensions standardized flange 2 and pillow block bearings 17 with regard to the receptacle sizes, hole spacing, Shaft diameter and distance of the roller bearing from the contact surface so that the installation of the tensile force measuring bearing is easily possible in exchange for a normal bearing.

Das Zugkraftmeßlager besteht aus einem zylindrischen Gehäuse 1 und z.B. dem Normflansch 2 mit einer Abstützvorrichtung 3 für das Wälzlager 5 in Form von zwei oder vier elastischen Xragarmen 4, die an der einen Seite im Gehäuse 1 fest verankert sind uidauf der anderen Seite das belastete Lager tragen. Der Auslenkweg ist ein Maß für die Lagerbelastung und kann durch einen außen angebrachten Wegaufnehmer 6 oder durch Dehnungsmeßstreifen, kurz DMS 7, die auf den Tragarmen 4 befestigt sind, gemessen werden (Abb. 2).The Zugkraftmeßlager consists of a cylindrical housing 1 and e.g. the standard flange 2 with a support device 3 for the roller bearing 5 in the form of two or four elastic Xragarms 4, which on one side in the housing 1 are firmly anchored and on the other side carry the loaded bearing. The deflection path is a measure of the bearing load and can be measured by an externally attached displacement transducer 6 or by means of strain gauges, DMS 7 for short, which are attached to the support arms 4 are to be measured (Fig. 2).

Der Luftspalt 8 begrenzt den Auslenkweg,damit beginnt der über lastschutz durch Anliegen von Ring 9 an das starre Gehäuse 1.The air gap 8 limits the deflection path, so that the overload protection begins by bearing ring 9 against the rigid housing 1.

Die Wand der Lagerabstützung 3 kann beispielsweise zur Aufnahme von Schleifbürsten 11 für die Übertragung von Kraftstrom oder Uhermospannungen dienen oder einen Drehzahlgeber 12 aufnehmen. Der Hohlraum im Gehäuse 1 kann von einem Kühlmedium über die Anschlüsse 14 durchströmt werden, wenn die Walze 13 oder die Umgebung störende Hitze entwickeln. Bei Stromübertragung in explosionsgefährdeten Räumen ist dem abdichtbaren Gehäuse ein Schutzgas zuführbar.The wall of the bearing support 3 can, for example, be used to hold Abrasive brushes 11 are used for the transmission of power or Uhermospannungen or take up a speed sensor 12. The cavity in the housing 1 can be of a Cooling medium flows through the connections 14 when the roller 13 or the Surrounding area develop annoying heat. When transmitting power in potentially explosive areas A protective gas can be supplied to the sealable housing.

Das zylindrische Gehäuse 1 ist im Flansch 2 über ein Gewinde 1 dreh-und blockierbar, so daß die Meßrichtung, der Richtung der auftretenden Bandzugkraft angepaßt werden kann.The cylindrical housing 1 is rotatable in the flange 2 via a thread 1 lockable, so that the measuring direction, the direction of the occurring tape tensile force can be customized.

Bei einer zweiachsigen Meßanordnung nach Abb. 3 und 4 kann eine unbekannte oder sich zeitlich ändernde Kraftrichtung in bekannter Weise durch Vergleich der Meßgrößen von je einem gegenüberliegenden Tragarmpaar ermittelt werden.With a two-axis measuring arrangement according to Fig. 3 and 4, an unknown or the direction of force changing over time in a known manner by comparing the Measured variables can be determined from an opposing pair of support arms.

Zu diesem Zweck sind drei oder vier ragarme 4 vorhanden, die sich zum Lager 5 hin so verjüngen, daß die auf den schmalen Plächen befestigten DMS, durch gleichmäßige Materialspannungen über die Meßlänge derselben, beeinflußt werden. Auf den beiden Flächen der Tragarme 4 können ebenso die auftretenden Schubspannungen mittels DMS 7 als Meßwerte dienen (Abb. 4).For this purpose, three or four ragarm 4 are available, which taper towards bearing 5 so that the strain gauges attached to the narrow surfaces, be influenced by uniform material stresses over the measuring length of the same. The shear stresses that occur can also be applied to the two surfaces of the support arms 4 serve as measured values by means of DMS 7 (Fig. 4).

Claims (8)

P a t e n t a n s p r ü c h e P a t e n t a n s p r ü c h e 1 Zugkraftmeßlager, dadurch gekennzeichnet, daß ein Lagergehäuse vorzugsweise mit genormten Einbauabmessungen durch eine zylinderförmige, gleichzeitig als Überlastanschlag dienende achsiale Verlängerung versehen ist, die an der freien Seite eine Abstützung hat, welche über elastische Arme eine Aufnahme für ein Gleit-oder Wälzlager trägt und einen kleinen Spielraum bis zur zylinderförmigen Verlängerung freiläßt für die Ermittlung der Lagerbelastung aus der elastischen Verformung der Tragarme. 1 tensile force measuring bearing, characterized in that a bearing housing preferably with standardized installation dimensions through a cylindrical, at the same time serving as an overload stop axial extension is provided, which is attached to the free Side has a support, which via elastic arms a receptacle for a sliding or Rolling bearing carries and a small margin up to the cylindrical extension leaves free for the determination of the bearing load from the elastic deformation of the Support arms. 2 Zugkraftmeßlager nach Anspruch 1, dadurch gekennzeichnet, daß daß die zylinderförmige Verlängerung im Flansch dreh- und feststellbar ist und zur Aufnahme eines elektrischen oder mechanischen Wegmessers eingerichtet ist. 2 tensile force measuring bearing according to claim 1, characterized in that the cylindrical extension in the flange can be rotated and locked and to accommodate an electrical or mechanical odometer is set up. 3 Zugkraftmeßlager nach Anspruch 1-2, dadurch gekennzeichnet, daß die zylindrische, mit einer elastischen Wellendichtung versehene Verlängerung einen geschlossenen Hohlraum bildet, der mit Kühlmittel durchströmt oder mit Schutzgas gefüllt werden kann. 3 tensile force measuring bearing according to claim 1-2, characterized in that the cylindrical extension provided with an elastic shaft seal forms closed cavity through which coolant flows or with protective gas can be filled. 4 Zugkraftmeßlager nach Anspruch 1-3, dadurch gekennzeichnet, daß das Wellenende und die Abstützung zur Aufnahme von elektrischen Schleifbürsten- und Ringen eines Tachometers oder anderen Einrichtungen eingerichtet ist. 4 tensile force measuring bearings according to claims 1-3, characterized in that the end of the shaft and the support to accommodate electrical grinding brushes and rings of a speedometer or other device. 5 Zugkraftmeßlager nach Anspruch 1-4, dadurch gekennzeichnet, daß die Tragarme mit DMS für Biege- und/oder Schubspannungsmessungen ausgerüstet sind und Ein- sowie Zweikomponenten Messungen erlauben. 5 tensile force measuring bearing according to claims 1-4, characterized in that the support arms are equipped with strain gauges for bending and / or shear stress measurements and one- and two-component measurements. 6 Zugkraftmeßlager nach Anspruch 1-5, dadurch gekennzeichnet, daß die zylinderförmige Gehäuseverlängerung als Wegbegrenzung und Überlastschutz für die elastischen Tragarme dient. - 6 tensile force measuring bearing according to claims 1-5, characterized in that the cylindrical housing extension as a path limitation and overload protection for the elastic support arms are used. - 7 Zugkraftmeßlager nach Anspruch 1-6, d a d u r c h g e k e n n z e i c h n e t, daß die Abstützung der Tragarme zur Anpassung der Messrichtung dreh- und feststellbar ist.7 tensile force measuring bearing according to claim 1-6, that is, that the support of the support arms can be rotated and locked to adjust the measuring direction. 8 Zugkraftmeßlager nach Anspruch 1-7, d a d u r c h g e k e n n z e i c h n e t, daß die Tragarme so gefarmt sind, daß die DMS über ihre wirksame Ausdehnung gleichmäßig beansprecht werden. 8 tensile force measuring bearing according to claims 1-7, d a d u r c h g e k e n n z e i c h n e t that the support arms are armored in such a way that the strain gauges have their effective Expansion are discussed evenly.
DE19742452925 1974-11-07 1974-11-07 Traction measuring bearing with bearing box of standard dimensions - has cylindrical axial extension acting as overload stop Pending DE2452925A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19742452925 DE2452925A1 (en) 1974-11-07 1974-11-07 Traction measuring bearing with bearing box of standard dimensions - has cylindrical axial extension acting as overload stop
DE19752521699 DE2521699A1 (en) 1974-11-07 1975-05-15 Tractive force measuring test bed - has bearing-mounted adjustable plates with overload protection
DE19752522848 DE2522848A1 (en) 1974-11-07 1975-05-23 Tractive force measuring test bed - has bearing-mounted transducer allowing measurements at different angles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742452925 DE2452925A1 (en) 1974-11-07 1974-11-07 Traction measuring bearing with bearing box of standard dimensions - has cylindrical axial extension acting as overload stop

Publications (1)

Publication Number Publication Date
DE2452925A1 true DE2452925A1 (en) 1976-05-13

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DE19742452925 Pending DE2452925A1 (en) 1974-11-07 1974-11-07 Traction measuring bearing with bearing box of standard dimensions - has cylindrical axial extension acting as overload stop

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674341A (en) * 1986-03-07 1987-06-23 Cleveland Machine Controls, Inc. Web tension transducer apparatus
US4691579A (en) * 1986-06-03 1987-09-08 Ekola Kenneth E Tension transducer
US4735102A (en) * 1986-03-07 1988-04-05 Cleveland Machine Controls, Inc. Web tension transducer apparatus
US4958525A (en) * 1988-07-02 1990-09-25 Koenig & Bauer Aktiengesellschaft Web tension measuring assembly
US6122978A (en) * 1998-04-02 2000-09-26 Cleveland Motion Controls Web tension cantilever transducer apparatus
US6250146B1 (en) 1999-09-14 2001-06-26 Cleveland Motion Controls, Inc. Web tension transducer apparatus
DE19917020C2 (en) * 1999-04-15 2001-09-13 Dieter Michael Krone Measuring bush for the detection of radial bearing forces
US6360596B1 (en) 1999-08-05 2002-03-26 Cleveland Motion Controls, Inc. Web tension transducer
WO2020114543A1 (en) * 2018-12-07 2020-06-11 Schaeffler Technologies AG & Co. KG Wheel hub bearing unit of a vehicle, in particular of an agricultural vehicle, comrpising means for sensing a force
WO2020114541A1 (en) * 2018-12-06 2020-06-11 Schaeffler Technologies AG & Co. KG Wheel hub bearing unit of a vehicle, in particular an agricultural vehicle, comprising means for detecting a force

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674341A (en) * 1986-03-07 1987-06-23 Cleveland Machine Controls, Inc. Web tension transducer apparatus
US4735102A (en) * 1986-03-07 1988-04-05 Cleveland Machine Controls, Inc. Web tension transducer apparatus
US4691579A (en) * 1986-06-03 1987-09-08 Ekola Kenneth E Tension transducer
US4958525A (en) * 1988-07-02 1990-09-25 Koenig & Bauer Aktiengesellschaft Web tension measuring assembly
US6122978A (en) * 1998-04-02 2000-09-26 Cleveland Motion Controls Web tension cantilever transducer apparatus
DE19917020C2 (en) * 1999-04-15 2001-09-13 Dieter Michael Krone Measuring bush for the detection of radial bearing forces
US6360596B1 (en) 1999-08-05 2002-03-26 Cleveland Motion Controls, Inc. Web tension transducer
US6250146B1 (en) 1999-09-14 2001-06-26 Cleveland Motion Controls, Inc. Web tension transducer apparatus
WO2020114541A1 (en) * 2018-12-06 2020-06-11 Schaeffler Technologies AG & Co. KG Wheel hub bearing unit of a vehicle, in particular an agricultural vehicle, comprising means for detecting a force
WO2020114543A1 (en) * 2018-12-07 2020-06-11 Schaeffler Technologies AG & Co. KG Wheel hub bearing unit of a vehicle, in particular of an agricultural vehicle, comrpising means for sensing a force

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