DE9104628U1 - Web tension measuring device - Google Patents
Web tension measuring deviceInfo
- Publication number
- DE9104628U1 DE9104628U1 DE9104628U DE9104628U DE9104628U1 DE 9104628 U1 DE9104628 U1 DE 9104628U1 DE 9104628 U DE9104628 U DE 9104628U DE 9104628 U DE9104628 U DE 9104628U DE 9104628 U1 DE9104628 U1 DE 9104628U1
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- measuring device
- web tension
- tension measuring
- double bending
- 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
Links
- 238000005452 bending Methods 0.000 claims description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000725 suspension Substances 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
- G01L5/04—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
- G01L5/10—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 electrical means
- G01L5/106—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 electrical means for measuring a reaction force applied on a cantilever beam
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2243—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being parallelogram-shaped
-
- 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
- G01L5/10—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 electrical means
-
- 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
- G01L5/10—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 electrical means
- G01L5/108—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 electrical means for measuring a reaction force applied on a single support, e.g. a glider
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
BESCHREIBUNGDESCRIPTION
Die Erfindung betrifft eine Bahnzugkraftmeßeinrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a web tension measuring device according to the preamble of claim 1.
Derartige Bahnzugkraftmeßeinrichtungen sind bekannt, und weisen eine Reihe von Nachteilen auf. Insbesondere die Aufhängung des Lagers bereitet Schwierigkeiten, da einerseits das Lager mit dem Meßkörper radial beweglich sein muß und andererseits nur radiale Bewegungen angestrebt werden. Diese beiden Forderungen können nur durch hohen Bauaufwand gleichzeitig erfüllt werden.Such web tension measuring devices are known and have a number of disadvantages. In particular, the suspension of the bearing causes difficulties because, on the one hand, the bearing with the measuring body must be able to move radially and, on the other hand, only radial movements are desired. These two requirements can only be met simultaneously with a high level of construction effort.
Es sind Bauformen bekannt, bei welchen das Stehlagergehäuse elastisch an dem Maschinengestell angeflanscht ist und zusätzlich mit stets spielbehafteten Lenkern versehen werden muß, damit die Verformung des Meßkörpers in definierter radialer Richtung erfolgen kann.There are known designs in which the pillow block housing is elastically flanged to the machine frame and must additionally be provided with links that always have play so that the deformation of the measuring body can take place in a defined radial direction.
Die Erfindung hat zur Aufgabe, die bekannte Bahnzugkraftmeßeinrichtung so zu verbessern, daß die Nachteile des Standes der Technik beseitigt werden.The invention aims to improve the known web tension measuring device so that the disadvantages of the prior art are eliminated.
Diese Aufgabe wird gelöst durch die Merkmale des Anspruchs 1.
Als wesentlicher Vorteil ergibt sich aus der Erfindung, daß an jeweils einem Ende der Bahnumlenkrolle standardisierte
Stehlagergehäuse verwendet werden können, und gleichzeitig am jeweils anderen Ende der Bahnumlenkrolle die angestrebte exact
geführte sehr geringe radiale Bewegung bei gleichzeitiger Lagerung der Bahnumlenkrolle sichergestellt ist.This object is achieved by the features of claim 1.
A significant advantage of the invention is that standardized pillow block bearing housings can be used at one end of the track deflection roller, and at the same time the desired precisely guided very small radial movement is ensured at the other end of the track deflection roller while simultaneously supporting the track deflection roller.
Die Erfindung kann durch zwei Ausführungsformen realisiert werden:The invention can be realized by two embodiments:
Entweder wird der erfindungsgemäße Meßkörper zwischen Lager und Stehlagergehäuse angeordnet, oder zwischen Stehlagergehäuse und Maschinengestell. Im ersten Fall gibt es zusätzlich die Variation, daß der Doppelbiegebalken gehäuseförmig ist, und sowohl den Lagersitz trägt, als auch unmittelbar an dem Befestigungsflansch sitzt.The measuring body according to the invention is either arranged between the bearing and the pedestal bearing housing, or between the pedestal bearing housing and the machine frame. In the first case, there is also the variation that the double bending beam is housing-shaped and both carries the bearing seat and sits directly on the fastening flange.
In beiden Fällen ist das Lager derart radial beweglich elastisch federnd aufgehängt, daß der Federweg die der jeweils vorliegenden Bahnzugkraft proportionale Meßgröße ist.In both cases, the bearing is suspended in such a way that it can move radially and elastically, that the spring deflection is the measured value proportional to the respective web tension force.
Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.Advantageous embodiments emerge from the subclaims.
Im folgenden wird die Erfindung anhand von Ausführungsbeispielen näher erläutert.In the following, the invention is explained in more detail using exemplary embodiments.
Die Fig. 1-4 zeigen eine Bahnzugkraftmeßeinrichtung 1 ,bei welcher die nicht gezeigte Bahnumlenkrolle, welche senkrecht auf der Papierebene stehen würde, mit einem Lager innerhalb des Gehäuses 2 radial beweglich gelagert ist. Bei diesem Gehäuse handelt es sich um ein sogenanntes Stehlagergehäuse mit einem zur Lagerradialebene senkrechten Befestigungsflansch 3. Die radiale Bewegungsrichtung wird durch die Richtung der Bahnzugkraft F repräsentiert, welche in der mittigen Lagerradialebene liegt. Die Lagerradialebene ihrerseits liegt in der Papierebene. Senkrecht zur Lagerradialebene steht der Befestigungsflansch 3, welcher sich senkrecht zur Papierebene in beide Richtungen zu dieser erstreckt. Der Befestigungsflansch 3 steht also senkrecht zurFig. 1-4 show a web tension measuring device 1 in which the web deflection roller (not shown), which would be perpendicular to the paper plane, is mounted with a bearing inside the housing 2 so that it can move radially. This housing is a so-called plummer block housing with a fastening flange 3 perpendicular to the bearing radial plane. The radial direction of movement is represented by the direction of the web tension force F, which lies in the central bearing radial plane. The bearing radial plane in turn lies in the paper plane. Perpendicular to the bearing radial plane is the fastening flange 3, which extends perpendicular to the paper plane in both directions. The fastening flange 3 is therefore perpendicular to the
Lagerradialebene, und ist seinerseits über die strichpunktiert angedeuteten Spannschrauben an das Maschinengestell angeflanscht, welches üblicherweise eine parallel zur Unterseite des Befestigungsflansches verlaufende Auflagefläche 4 aufweist.Bearing radial plane, and is in turn flanged to the machine frame via the clamping screws indicated by dash-dot lines, which usually has a support surface 4 running parallel to the underside of the mounting flange.
Üblicherweise wird die Bahnzugkraft F von dem Lager über das Gehäuse 2 mittels des Flansches 3 auf das Maschinengestell übertragen. Im vorliegenden Fall ist zwischen dem Lager und dem Maschinengestell ein elastisch verformbarer Meßkörper 5 angeordnet, der bei dem Ausführungsbeispiel der Fig. 1 zwischen dem Stehlagergehäuse 3 und der Auflagefläche 4 des Maschinengestells sitzt.Usually, the web tension force F is transmitted from the bearing via the housing 2 to the machine frame by means of the flange 3. In the present case, an elastically deformable measuring body 5 is arranged between the bearing and the machine frame, which in the embodiment of Fig. 1 sits between the pedestal bearing housing 3 and the support surface 4 of the machine frame.
Im Falle der Fig 2 sitzt der Meßkörper unmittelbar an dem Befestigungsflansch 3 , der auf seiner Ober und/oder Unterseite eine bearbeitete Auflagefläche 4 aufweist. Der Meßkörper ist in diesem Fall das Gehäuse 2 für das Lager. Hierzu weist der Verbindungsschenkel 7, welcher die nicht eingespannten freien Enden 8 der Biegebalken 6 ungelenkig miteinander verbindet, als Lagersitz eine Bohrung 9 auf.Der Meßkörper 5 mit den zwei gleichartigen Biegebalken 6 , die an ihren Einspannenden 10 bezüglich des Maschinengestells 4 fest eingespannt sind, also unbeweglich sind, trägt auf der Oberfläche der beiden Doppelbiegebalken die aufgeklebten Dehnungsmeßstreifen 12, die z.B. über eine Vollbrücke geschaltet sein können.In the case of Fig. 2, the measuring body sits directly on the fastening flange 3, which has a machined support surface 4 on its top and/or bottom. The measuring body in this case is the housing 2 for the bearing. For this purpose, the connecting leg 7, which connects the non-clamped free ends 8 of the bending beams 6 to one another in a non-articulated manner, has a bore 9 as a bearing seat. The measuring body 5 with the two identical bending beams 6, which are firmly clamped at their clamping ends 10 with respect to the machine frame 4, i.e. are immobile, has the glued-on strain gauges 12 on the surface of the two double bending beams, which can be connected, for example, via a full bridge.
Eine weitere Besonderheit zeigt Fig. 3 : hier ist der Doppelbiegebalken innerhalb des Stehlagergehäuses 2 angeordnet.Another special feature is shown in Fig. 3: here the double bending beam is arranged within the pillow block housing 2.
In Fig 1 ist gezeigt, daß der Doppelbiegebalken als geschlossener Rechteckring mit zwei gegenüberliegenden parallelelen äußeren Anlageflächen 11 zwischen dem Fuß des Befestigungsflansches 3 und der Auflagefläche des Maschinengestells sitzt.In Fig. 1 it is shown that the double bending beam is a closed rectangular ring with two opposite parallel outer contact surfaces 11 between the foot of the fastening flange 3 and the support surface of the machine frame.
In allen Fällen kann es sich bei dem Meßkörper um scheibenartige Körper handeln. Diese sind dann stets mit einem Teilbereich des Aussenumfangs starr an den Befestigungsflansch angeschlossen.In all cases, the measuring body can be a disc-like body. These are then always rigidly connected to the mounting flange with a portion of the outer circumference.
Vorteilhaft wird der Vollkörper von einem Schlitz 13 vollständig so durchbrochen, daß von dem ursprünglichen Vollkörper die beiden Doppelbiegebalken übrigbleiben, welche von dem Verbindungsschenkel 7 ungelenkig miteinander verbunden sind.Advantageously, the solid body is completely penetrated by a slot 13 so that the two double bending beams remain from the original solid body, which are connected to one another in an unarticulated manner by the connecting leg 7.
Im Falle der Fig 4 ist der Schlitzverlauf U-förmig, und zwar so, daß der querliegende Schenkel des U (14) die beiden Einspannenden 10 der Doppelbiegebalken miteinander verbindet.In the case of Fig. 4, the slot is U-shaped, in such a way that the transverse leg of the U (14) connects the two clamping ends 10 of the double bending beams.
Zusätzlich weist Fig. 4 die Besonderheit auf, daß die Bohrung 9 für den Lagersitz innerhalb des U liegt. Durch einen Freischlitz 15 können die Doppelbiegebalken 6 frei nach unten durchfedern.In addition, Fig. 4 has the special feature that the bore 9 for the bearing seat is located inside the U. The double bending beams 6 can freely spring downwards through a free slot 15.
Eine ähnliche Ausführungsform besteht darin, daß der Verbindungssteg 16 durchtrennt ist, und der obere Teil des Meßkörpers 2 so um 90 Grad gegen den Uhrzeigersinn gedreht wird, daß er mit der jetzt nach links weisenden Fläche 17 nach der Drehung von oben auf den Befestigungsflansch 3 verschraubt werden kann. Bei dieser Ausführungsform fällt der Freischlitz 15 weg. Sie eignet sich deshalb insbesondere für Anwendungen, bei denen die Richtung der Bahnzugkraft parallel zur Fläche 17 liegt, also nach der Drehung horizontal.A similar embodiment consists in that the connecting web 16 is severed and the upper part of the measuring body 2 is rotated 90 degrees anti-clockwise so that it can be screwed onto the fastening flange 3 from above with the surface 17 now pointing to the left after the rotation. In this embodiment, the free slot 15 is omitted. It is therefore particularly suitable for applications in which the direction of the web tension is parallel to the surface 17, i.e. horizontal after the rotation.
Claims (7)
dadurch gekennzeichnet, daß 2. Web tension measuring device according to claim 1,
characterized in that
dadurch gekennzeichnet, daß 3. Web tension measuring device according to claim 1,
characterized in that
dadurch gekennzeichnet, daß 4. Web tension measuring device according to claim 1,
characterized in that
dadurch gekennzeichnet, daß 5,Web tension measuring device according to claims 1 to 4,
characterized in that
dadurch gekennzeichnet, daß 7. Web tension measuring device according to claim 6,
characterized in that
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9104628U DE9104628U1 (en) | 1991-04-16 | 1991-04-16 | Web tension measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9104628U DE9104628U1 (en) | 1991-04-16 | 1991-04-16 | Web tension measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9104628U1 true DE9104628U1 (en) | 1991-06-27 |
Family
ID=6866361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9104628U Expired - Lifetime DE9104628U1 (en) | 1991-04-16 | 1991-04-16 | Web tension measuring device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9104628U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0990884A2 (en) * | 1998-10-02 | 2000-04-05 | Haehne Elektronische Messgeräte GmbH | Method of manufacturing a spring member insertet in a force measuring device and such a spring member |
-
1991
- 1991-04-16 DE DE9104628U patent/DE9104628U1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0990884A2 (en) * | 1998-10-02 | 2000-04-05 | Haehne Elektronische Messgeräte GmbH | Method of manufacturing a spring member insertet in a force measuring device and such a spring member |
EP0990884A3 (en) * | 1998-10-02 | 2000-08-02 | Haehne Elektronische Messgeräte GmbH | Method of manufacturing a spring member insertet in a force measuring device and such a spring member |
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