DE2319086A1 - FORCE MEASURING RING - Google Patents
FORCE MEASURING RINGInfo
- Publication number
- DE2319086A1 DE2319086A1 DE19732319086 DE2319086A DE2319086A1 DE 2319086 A1 DE2319086 A1 DE 2319086A1 DE 19732319086 DE19732319086 DE 19732319086 DE 2319086 A DE2319086 A DE 2319086A DE 2319086 A1 DE2319086 A1 DE 2319086A1
- Authority
- DE
- Germany
- Prior art keywords
- force measuring
- measuring ring
- ring
- evenly distributed
- measure
- 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
Links
Classifications
-
- 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
- G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
Xraftmeßring' Die bekannten Kraftmeßringe bestehen aus rohrförmigen Stahlkörpern (Abb. 3) an denen in bekannter Weise innen und außen Dennungsrneßstreifen 1 angebracht sind.Xraftmeßring 'The known force measuring rings consist of tubular Steel bodies (Fig. 3) on which, in a known manner, inside and outside denial tear strips 1 are attached.
Diese haDen sich im Allgemeinen gut bewåhrt, so lange die zu stauchende Wandstärke und damit der Meßbereich so groß sind, daß keine Tendenz für ein Ausknicken besteht. Das tritt aber dann leicht ein, wenn der Eraftmeßring bei verhältnismäßig großem Durchmesser einen sehr niederen Meßbereich besitzen soll, beispielsweise 0 - 100 kp, bei 100 mm Durchmesser. Dann würde die Stärke der Zylinderwand nur einige Zehntel-Millimeter erfo<dern und ein ausbeulen 2a der Wand wäre die Polge (Abb. 3).These have generally worked well as long as the one to be compressed Wall thickness and thus the measuring range are so large that there is no tendency for buckling consists. But that happens easily when the measuring ring is relatively large diameter should have a very low measuring range, for example 0 - 100 kp, with a diameter of 100 mm. Then the thickness of the cylinder wall would only be some Tenths of a millimeter and bulging 2a of the wall would be the pole (Fig. 3).
Die vorliegende Erfindung ermöglicht Kraftmeßringe für sehr niedere Heßbereiche herzustellen, bei verhältnismäßig großem Durchmesser.The present invention allows force washers for very low Produce hot areas with a relatively large diameter.
Diese Kraftmeßringe bestehen vorzugsweise aus 2 übereinander angeordneten eilen 3 und 4 (Abb. 1 und Abb. 2), von denen der eine (4) die Meßelemente 5 und den Uberlastschutz 6 enthält, während der andere (3) einen U-förmigen Querschnitt besitzt, der sich unter dem Einfluß der Meßkraft elastisch verformt, ohne, auch ira überlasteten Zustand seine für einwandfreies Messen erforderliche Form zu verlieren, da er sich auf den ringförmigen Teil 6 abstützen kann.These force measuring rings preferably consist of 2 superimposed rush 3 and 4 (Fig. 1 and Fig. 2), of which one (4) the measuring elements 5 and contains the overload protection 6, while the other (3) has a U-shaped cross-section possesses, which deforms elastically under the influence of the measuring force, without, too in an overloaded state to lose the shape required for correct measurement, since it can be supported on the annular part 6.
Die elastisch verformbaren Teile 7 und 8 der Kraftmeßringe sind zu 2 Grundtypen ausgebildet: Für sehr geringe Beanspruchung als ringförmige Plattenfeder 8, die mit den stabilisierenden inneren und äußeren Ringteilen 9 verbunden ist (Abb. 2) und als zwei konzentrische Ringe 7, die durch einen stabilen, praktisch nicht verformbaren Kopfring 10 (Abb. 1) verbunden sind, für höhere Lasten.The elastically deformable parts 7 and 8 of the force measuring rings are closed 2 basic types designed: For very low stress as a ring-shaped diaphragm 8, which is connected to the stabilizing inner and outer ring parts 9 (Fig. 2) and as two concentric rings 7, which by a stable, practically not deformable head ring 10 (Fig. 1) are connected for higher loads.
Die durch axiale Belastung der Meßringe entstehende Wegänderung wird in bekannter Weise durch mehrere, gleichmäßig über dem Umfang verteilte Aufnehmer 5 erfaßt, die auf beliebiger Basis arbeiten können, z. B. induktiv, piezoelektrisch o. a Der Zusammenhalt der Ringteile 3 und 4 kann beispielsweise durch Schweißen (Abb 2) oder mehrere Schrauben 11 (Abb. 1) erfolgen.The change in path caused by the axial load on the measuring rings is in a known manner by several sensors evenly distributed over the circumference 5 who work on any basis can e.g. B. inductive, piezoelectric o. a The cohesion of the ring parts 3 and 4 can for example by welding (Fig. 2) or several screws 11 (Fig. 1).
Im letzteren Fall dienen diese gleichzeitig zur Erzeugung einer Vorspannung und sind dazu elastisch ausgebildet. Um auf beiden Ringteilen gleich lange Stauchwege zu erhalten, ist der innere Hohlzylinder mit einer entsprechend stärkeren Wandung versehen, da sein Umfang kürzer ist0 Ein Ring 12 schützt die empfindlichen Innenteile.In the latter case, these serve at the same time to generate a preload and are designed to be elastic for this purpose. In order to have the same length of compression paths on both ring parts The inner hollow cylinder is to be obtained with a correspondingly thicker wall because its circumference is shorter0 A ring 12 protects the sensitive inner parts.
Der hutförmige Einsatz 13 ermöglicht eine besonders nieder Lastangriffshöhe 14 herzustellen0The hat-shaped insert 13 enables a particularly low load application height 14 to make 0
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732319086 DE2319086A1 (en) | 1973-04-16 | 1973-04-16 | FORCE MEASURING RING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732319086 DE2319086A1 (en) | 1973-04-16 | 1973-04-16 | FORCE MEASURING RING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2319086A1 true DE2319086A1 (en) | 1974-10-31 |
Family
ID=5878213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732319086 Pending DE2319086A1 (en) | 1973-04-16 | 1973-04-16 | FORCE MEASURING RING |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2319086A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2357484A1 (en) * | 1973-11-17 | 1975-05-22 | Erich Brosa | Thin-walled ring dynamometer - has an upper and lower stabilising ring, each consisting of two parts |
-
1973
- 1973-04-16 DE DE19732319086 patent/DE2319086A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2357484A1 (en) * | 1973-11-17 | 1975-05-22 | Erich Brosa | Thin-walled ring dynamometer - has an upper and lower stabilising ring, each consisting of two parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHA | Expiration of time for request for examination | ||
| OI | Miscellaneous see part 1 |