DE3009454A1 - Shaft loading monitor for winch drive - uses expansion strips attached to radial struts between outer frame and inner bearing support - Google Patents
Shaft loading monitor for winch drive - uses expansion strips attached to radial struts between outer frame and inner bearing supportInfo
- Publication number
- DE3009454A1 DE3009454A1 DE19803009454 DE3009454A DE3009454A1 DE 3009454 A1 DE3009454 A1 DE 3009454A1 DE 19803009454 DE19803009454 DE 19803009454 DE 3009454 A DE3009454 A DE 3009454A DE 3009454 A1 DE3009454 A1 DE 3009454A1
- Authority
- DE
- Germany
- Prior art keywords
- measuring unit
- support element
- webs
- load
- unit 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.)
- Withdrawn
Links
- 239000002253 acid Substances 0.000 claims abstract description 3
- 239000013013 elastic material Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract description 2
- 239000012858 resilient material Substances 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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
- 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
-
- 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
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/108—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving resistance strain gauges
-
- 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
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or 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
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
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)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Meßeinheit zur Ermittlung der Belastung von WellenMeasuring unit for determining the load on shafts
Die Erfindung betrifft eine Meßeinheit zur Ermittlung der Belastung von Wellen, insbesondere an Getriebestufen von Winden und ähnlichen Hebezeugen, bestehend aus einem äußeren Befestigungsrahmen, einem mit Abstand an diesem abgestützten inneren Tragelement zur Aufnahme eines Wellenlagers und im Bereich der Abstützung angeordneten, auf deren Verformung ansprechenden Meßfühlern in Form von Dehnmeßstreifen.The invention relates to a measuring unit for determining the load of shafts, especially on gear stages of winches and similar hoists, consisting of an outer mounting frame, one supported on this at a distance inner support element for receiving a shaft bearing and in the area of the support arranged, responsive to their deformation sensors in the form of strain gauges.
Bei einer bekannten Meßeinheit der eingangs erwähnten Gattung sind der Befestigungsrahmen und das Tragelement als konzentrisch ineinander angeordnete Ringe ausgebildet, die in Wirkrichtung der angreifenden Last über einen mit Dehnmeßstreifen ausgestatteten einzelnen Steg fest miteinander verbunden sind. Diese Meßeinheit soll jedoch nur zur Ermittlung verhältnismäßig kleiner Lasten zum Einsatz kommen.In a known measuring unit of the type mentioned at the beginning the mounting frame and the support element as concentrically arranged one inside the other Rings formed in the direction of action of the applied load via a strain gauge equipped single bar are firmly connected to each other. This unit of measurement however, it should only be used to determine relatively small loads.
Der Erfindung liegt die Aufgabe zugrunde, eine Meßeinheit der genannten Gattung zu entwickeln, welche bei einfachem Aufbau die Ermittlung größerer Lasten zuläßt und mit ausreichender Genauigkeit arbeitet.The invention is based on the object of a measuring unit of the aforementioned To develop a class which, with a simple structure, enables the determination of larger loads and works with sufficient accuracy.
Der Erfindungsgegenstand soll insbesondere an Getriebestufen von Winden und ähnlichen Hebezeugen zum Einsatz gelangen und dazu dienen, der angreifenden Last proportionale Meßsignale zu liefern; diese können mittels einer geeigneten Anzeigeeinrichtung sichtbar gemacht und/ oder im Zusammenhang mit einer Uberlastüberwachung zur Erzeugung von Warnsignalen und zur Einleitung von Abschaltvorgängen benutzt werden.The subject of the invention is intended in particular for gear stages of winches and similar hoists are used and serve the attacking To provide load proportional measurement signals; this can be done using a suitable Display device made visible and / or in connection with an overload monitoring used to generate warning signals and to initiate shutdown processes will.
Die gestellte Aufgabe wird durch eine Meßeinheit gelöst, die im wesentlichen die Merkmale des Anspruchs 1 aufeist. Der der Erfindung zugrunae liegende Lösungsgedanke besteht danach hauptsächlich darin, den Befestigungsrahmen und das Tragelement gleichzeitig über zumindest zwei Stege aneinander abzustützen die sich bezüg-Wellen lich des Tragelements und des zugehörigen Lagers gegenüberliegen und die jeweils mit Dehnmeßstreifen ausgestattet sind. Bedingt durch das Zusammenwirken der Dehnmeßstreifen mehrerer Stege läßt sich mittels einer geeigneten Elektronikeinheit aus der Gesamtheit der von den Dehnmeßstreifen kommenden Meßsignale ein verhältnismäßig genaues Meßergebnis erzielen.The problem posed is achieved by a measuring unit which essentially the features of claim 1 aufeist. The solution idea on which the invention is based thereafter mainly consists in the mounting frame and the support element at the same time to be supported on each other via at least two webs which are related waves Lich des Support element and the associated bearing are opposite and each with strain gauges are equipped. Due to the interaction of several strain gauges Bridges can be made up of the totality of the by means of a suitable electronic unit measurement signals coming from the strain gauges provide a relatively accurate measurement result achieve.
Der Befestigungsrahmen und das Tragelement bestehen vorteilhaft aus mit Abstand ineinander angeordneten Ringen.The fastening frame and the support element advantageously consist of rings arranged one inside the other at a distance.
Der Erfindungsgegenstand kann insbesondere dadurch weiter ausgestaltet sein, daß er zusätzlich die Merkmale eines oder mehrerer der Ansprüche 2 bis 5 aufweist.The subject matter of the invention can in particular be further developed as a result be that it additionally has the features of one or more of claims 2 to 5.
Insbesondere ist es möglich, die sich bezüglich des Tragments gegenüberliegenden Stege in mehrere Teilstege zu unterteilen, die jeweils mit eigenen Dehnmeßstreifen ausgestattet sind; die jeweils zusammengehörigen Teilstege liegen dabei symmetrisch zur Wirkrichtung der angreifenden Last.In particular, it is possible for those opposite one another with respect to the support element To divide the webs into several partial webs, each with its own strain gauge are equipped; the associated partial webs are symmetrical the effective direction of the applied load.
Die Erfindung wird nachfolgend anhana der Zeichnung im einzelnen erläutert.The invention is explained in detail below with reference to the drawing.
Es zeigen: Fig. 1 schematisch eine Stirnansicht auf eine Meßeinheit zur Ermittlung einer lotrecht wirkenden Last, Fig. 2 einen Schnitt nach Linie 11-11 in Fig. 1 und Fig. 3 schematisch die neue Meßeinheit mit zugehöriger Welle einer Getriebestufe.They show: FIG. 1 schematically an end view of a measuring unit to determine a vertically acting load, FIG. 2 shows a section along line 11-11 in Fig. 1 and Fig. 3 schematically the new measuring unit with an associated shaft Gear stage.
Die neue Meßeinheit 1 weist als wesentliche Bestandteile einen ringförmigen äußeren Tragrahmen 2 und einen inneren Tragring 3 auf; die beiden Ringe 2 und 3 sind über einen oberen Steg 4 und einen unteren Steg 5 fest miteinander verbunden. Die beiden Stege sind in der Weise ausgerichtet, daß ihre längsachsenmit der Wirkrichtung (Linie 6) der angreifenden Last P zusammenfallen.The new measuring unit 1 has an annular one as its essential components outer support frame 2 and an inner support ring 3; the two rings 2 and 3 are firmly connected to one another via an upper web 4 and a lower web 5. The two webs are aligned in such a way that their longitudinal axes coincide with the direction of action (Line 6) of the applied load P coincide.
Die in Umfangsrichtung angeordneten Seitenflächen 4' bzw. 5 sind jeweils mit Dehnmeßstreifen 7 beklebt, die auf Zug und Druck beanspruchbar sind. Diese Beanspruchung führt zu einer Widerstandsänderung, die in der Last P proportionale Meßsignale umwandelbar ist.The side surfaces 4 'and 5 arranged in the circumferential direction are each stuck with strain gauges 7, which can be subjected to tension and pressure. This stress leads to a change in resistance, which can be converted into proportional measuring signals in the load P. is.
Die Fig. 2 verdeutlicht für den unteren Steg 5, daß die Stegdicke (d.h. die Abmessung der Stege quer zur Ebene der Ringe 2 und 3) erheblich kleiner ist als die Dicke der Ringe 2 und 3 im Anschlußbereich an die Stege.Fig. 2 shows for the lower web 5 that the web thickness (i.e. the dimension of the webs across the plane of rings 2 and 3) is considerably smaller is than the thickness of the rings 2 and 3 in the connection area to the webs.
Der äußere Ring 2 weist darüber hinaus eine Verlängerung 2 mit Bohrungen 2" auf, über welche er mittels (nicht dargestellterj Befestigungsbolzen drehfest mit der Umgebung verbindbar ist.The outer ring 2 also has an extension 2 with holes 2 ", via which he means (not illustrated fastening bolts is rotatably connectable to the environment.
Der Zwischenraum zwischen den Ringen 2 und 3 ist im übrigen vollständig mit öl- und säurebeständigem elastischem Schaum 8 ausgefüllt.The space between the rings 2 and 3 is otherwise complete filled with oil- and acid-resistant elastic foam 8.
Zur Ermittlung der Belastung der in Fig. 3 dargestellten Welle ist die neue Meßeinheit in die zugehörige Seitenwand 10 der Getriebestufe einer Winde eingebaut.To determine the load on the shaft shown in Fig. 3 is the new measuring unit in the associated side wall 10 of the gear stage of a winch built-in.
Der Tragrahmen 2 ist dabei - im Gegensatz zu der in den Fig. 1 und 2 dargestellten Ausführungsform - mit einem Flansch 2111 ausgestattet, der lösbar mit der Gehäusewand 10 verbunden ist. Die drehbare Abstützung der Welle 9 erfolgt mittels eines im Tragring 3 gehaltenen Wälzlagers 11. Dieses stützt sich nach außen hin seitlich an einem Gehäusedeckel 12 ab, der seinerseits mit dem Flansch 2111 verbunden ist. Die Lage der Welle 9 bezüglich des Wälzlagers 11 ist durch einen Federring 13 gesichert.The support frame 2 is here - in contrast to that in FIGS. 1 and 2 embodiment shown - equipped with a flange 2111, which is detachable is connected to the housing wall 10. The rotatable support of the shaft 9 takes place by means of a roller bearing 11 held in the support ring 3. This is supported on the outside towards the side of a housing cover 12, which in turn with the flange 2111 connected is. The position of the shaft 9 with respect to the roller bearing 11 is by a Lock washer 13 secured.
Der Gehäusedeckel 12 weist im Bereich der unteren Dehnmeßstreifen 7 eine Gewindebohrung 12' auf, durch welche die für den Meßvorgang erforderlichen leitungen nach außen geführt werden können.The housing cover 12 has in the area of the lower strain gauges 7 has a threaded hole 12 'through which the necessary for the measuring process lines can be led to the outside.
Die neue Meßeinheit 1 kann - wie aus Fig. 3 ersichtlich -als Einzelelement Verwendung finden; es ist jedoch auch möglich, jeder Welle einer Getriebestufe an beiden Seiten Meßeinheiten zuzuordnen.As can be seen from FIG. 3, the new measuring unit 1 can be used as a single element Find use; however, it is also possible to have a gear stage on each shaft assign measuring units to both sides.
LeerseiteBlank page
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803009454 DE3009454A1 (en) | 1980-03-12 | 1980-03-12 | Shaft loading monitor for winch drive - uses expansion strips attached to radial struts between outer frame and inner bearing support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803009454 DE3009454A1 (en) | 1980-03-12 | 1980-03-12 | Shaft loading monitor for winch drive - uses expansion strips attached to radial struts between outer frame and inner bearing support |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3009454A1 true DE3009454A1 (en) | 1981-09-24 |
Family
ID=6096972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803009454 Withdrawn DE3009454A1 (en) | 1980-03-12 | 1980-03-12 | Shaft loading monitor for winch drive - uses expansion strips attached to radial struts between outer frame and inner bearing support |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3009454A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3212946A1 (en) * | 1982-04-07 | 1983-11-03 | Harald 6233 Kelkheim Matschin | Torque-measuring system |
DE3843044A1 (en) * | 1988-12-21 | 1990-06-28 | Siemag Transplan Gmbh | DEVICE FOR DETERMINING A ROPE POWERING ROPE |
US4939936A (en) * | 1986-03-27 | 1990-07-10 | Protos Precision Systems Limited | Shapemeter |
US4958525A (en) * | 1988-07-02 | 1990-09-25 | Koenig & Bauer Aktiengesellschaft | Web tension measuring assembly |
DE4332227C1 (en) * | 1993-09-22 | 1994-12-01 | Siemens Ag | Device for determining the spring constants of a slotted tube |
DE19917020C2 (en) * | 1999-04-15 | 2001-09-13 | Dieter Michael Krone | Measuring bush for the detection of radial bearing forces |
EP1630029B1 (en) * | 2004-08-26 | 2011-10-05 | MELECS EWS GmbH & Co KG | Apparatus to determine the output torque of a transfer case of a vehicle |
WO2012080570A1 (en) * | 2010-12-13 | 2012-06-21 | Konecranes Plc | Arrangement for measuring radial forces in bearing |
EP3978886A1 (en) * | 2016-11-28 | 2022-04-06 | TQ-Systems GmbH | Load cell for determining a radial force acting on a crankshaft |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2404501A1 (en) * | 1974-01-31 | 1975-08-14 | Egwin Leiber | Electromechanical dynamometer - has zero point which can be determined, and whole force passes through its sensing element |
JPS52133270A (en) * | 1976-04-30 | 1977-11-08 | Yamato Scale Co Ltd | Apparatus for measuring force |
DE2729699A1 (en) * | 1977-06-07 | 1978-12-21 | Heinrich Gruenbaum | Measurement of radial force acting on bearing - using double ring linked with strain-gauge carrying arms |
-
1980
- 1980-03-12 DE DE19803009454 patent/DE3009454A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2404501A1 (en) * | 1974-01-31 | 1975-08-14 | Egwin Leiber | Electromechanical dynamometer - has zero point which can be determined, and whole force passes through its sensing element |
JPS52133270A (en) * | 1976-04-30 | 1977-11-08 | Yamato Scale Co Ltd | Apparatus for measuring force |
DE2729699A1 (en) * | 1977-06-07 | 1978-12-21 | Heinrich Gruenbaum | Measurement of radial force acting on bearing - using double ring linked with strain-gauge carrying arms |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3212946A1 (en) * | 1982-04-07 | 1983-11-03 | Harald 6233 Kelkheim Matschin | Torque-measuring system |
US4939936A (en) * | 1986-03-27 | 1990-07-10 | Protos Precision Systems Limited | Shapemeter |
US4958525A (en) * | 1988-07-02 | 1990-09-25 | Koenig & Bauer Aktiengesellschaft | Web tension measuring assembly |
DE3843044A1 (en) * | 1988-12-21 | 1990-06-28 | Siemag Transplan Gmbh | DEVICE FOR DETERMINING A ROPE POWERING ROPE |
DE4332227C1 (en) * | 1993-09-22 | 1994-12-01 | Siemens Ag | Device for determining the spring constants of a slotted tube |
DE19917020C2 (en) * | 1999-04-15 | 2001-09-13 | Dieter Michael Krone | Measuring bush for the detection of radial bearing forces |
EP1630029B1 (en) * | 2004-08-26 | 2011-10-05 | MELECS EWS GmbH & Co KG | Apparatus to determine the output torque of a transfer case of a vehicle |
WO2012080570A1 (en) * | 2010-12-13 | 2012-06-21 | Konecranes Plc | Arrangement for measuring radial forces in bearing |
EP3978886A1 (en) * | 2016-11-28 | 2022-04-06 | TQ-Systems GmbH | Load cell for determining a radial force acting on a crankshaft |
CN114486035A (en) * | 2016-11-28 | 2022-05-13 | Tq***公司 | Electric drive element, torque measuring device and flywheel assembly |
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Legal Events
Date | Code | Title | Description |
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8110 | Request for examination paragraph 44 | ||
8130 | Withdrawal |