JPS5851210B2 - Load detection method - Google Patents
Load detection methodInfo
- Publication number
- JPS5851210B2 JPS5851210B2 JP5549476A JP5549476A JPS5851210B2 JP S5851210 B2 JPS5851210 B2 JP S5851210B2 JP 5549476 A JP5549476 A JP 5549476A JP 5549476 A JP5549476 A JP 5549476A JP S5851210 B2 JPS5851210 B2 JP S5851210B2
- Authority
- JP
- Japan
- Prior art keywords
- load
- detector
- jig
- detection method
- transmission surface
- 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
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
【発明の詳細な説明】
本発明は、荷重検出における荷重伝達面の粗悪にかかわ
らない方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for detecting a load regardless of the quality of the load transfer surface.
従来、荷重検出器の精度をだすためには、その荷重伝達
面の面精度、つまり平面度とか平行度などを上げる必要
があり、逆に面精度が悪いと、荷重検出器に偏荷重が加
わり、その精度が劣化する現象が生じていた。Conventionally, in order to improve the accuracy of a load detector, it is necessary to improve the surface accuracy of the load transmission surface, such as flatness and parallelism. Conversely, if the surface accuracy is poor, an uneven load will be applied to the load detector. , a phenomenon occurred in which the accuracy deteriorated.
本発明は、荷重が加わると、その形状において部分的に
降伏を起して、荷重伝達面の面精度を補うようなプレー
トを、荷重検出器と荷重伝達面との間に挿入することに
より、偏荷重の影響を避けるようにしたものである。The present invention inserts a plate between the load detector and the load transfer surface that partially yields in its shape when a load is applied to compensate for the surface accuracy of the load transfer surface. This is to avoid the effects of unbalanced loads.
第１図は、従来方式の説明図である。FIG. 1 is an explanatory diagram of a conventional method.
１は荷重検出器、２は荷重伝達面、Ｆは荷重、ｆは伝達
面２から検出器１が受ける反力であって検出器１に加わ
る荷重Ｆは偏荷重ｆとして作用し、検出精度が劣ること
があった。1 is the load detector, 2 is the load transmission surface, F is the load, and f is the reaction force that the detector 1 receives from the transmission surface 2. The load F applied to the detector 1 acts as an unbalanced load f, and the detection accuracy is There were times when I was inferior.
第２図・第３図は、本発明の一実施例の側断面・底面図
を表わす。FIGS. 2 and 3 show a side sectional view and a bottom view of an embodiment of the present invention.
３は間挿治具で、その形状および材質が検出される荷重
Ｆにより、荷重伝達面２に、密着しやすい媒体部材、た
とえばレーコード板状溝をもつアルミ板からなり、荷重
検出器１の底部を覆うように設けられる。Reference numeral 3 denotes an interpolation jig, which is made of a medium member such as an aluminum plate having a record plate-like groove, which easily adheres to the load transmission surface 2 due to the load F whose shape and material are detected, and which is attached to the bottom of the load detector 1. It is installed to cover the
このようにして荷重Ｆが検出器１に加わると、まず、荷
重伝達面２の凸起部にあたる治具３が局部的に荷重に降
伏して潰れ、荷重がさらに加わると、最終的には、治具
３の凹部に荷重伝達面２が接触し、荷重Ｆが荷重検出器
１に平均してかかるようになる。When the load F is applied to the detector 1 in this way, first, the jig 3 corresponding to the convex portion of the load transmission surface 2 locally yields to the load and collapses, and when the load is further applied, eventually, The load transmission surface 2 comes into contact with the recessed portion of the jig 3, and the load F is applied to the load detector 1 on average.
第４図は、荷重伝達面２に対応して治具３が順応する説
明図である。FIG. 4 is an explanatory diagram of how the jig 3 conforms to the load transmission surface 2.
第５図は、治具３の同心円状の溝の詳細を示す断面拡大
図で、厚き３５は２閣溝の側面３１゜３２は６０°をな
し溝３３のピッチは１ｍｍ、溝の深さは０．５ｍ＋ｎ、
材質はアルミで面３４の部位が荷重伝達面に接する。Fig. 5 is an enlarged sectional view showing the details of the concentric grooves of the jig 3, where the thickness 35 is the side surface 31° of the two-kaku groove, the side 32 is 60°, the pitch of the groove 33 is 1 mm, and the groove depth is is 0.5m+n,
The material is aluminum, and the surface 34 is in contact with the load transmission surface.
このような状態では荷重分布は均等になる。In such a state, the load distribution will be uniform.
第６図は、荷重検出の特性曲線図であって、直線６０は
理想計算値、実線曲線６１は従来方式にかかるもの、点
線曲線６２は本発明によるものであるＯ
第７図は、治具３の溝を平行したもので、ＸＸの断面図
をあわせ示している。FIG. 6 is a characteristic curve diagram of load detection, in which the straight line 60 is the ideal calculated value, the solid line curve 61 is the one according to the conventional method, and the dotted line curve 62 is according to the present invention. The grooves of No. 3 are parallel to each other, and the cross-sectional view of No. XX is also shown.
第８図は、治具３の溝が放射状にしたものを示すＯ
第９図は、治具３を荷重４の印加される伝達面へ設けて
もよいことを表わす。FIG. 8 shows that the jig 3 has radial grooves. FIG. 9 shows that the jig 3 may be provided on the transmission surface to which the load 4 is applied.
第１０図・第１１図は、荷重検出器１の荷重４のその受
座１０が球状の場合の本発明の詳細な説明図で、なお、
荷重検出器１の底面あるいは上面は円形にかぎることは
なく、多角形であってもよく、また、治具３における溝
の形状も三角形・台形・矩形・半円形などいずれでもよ
い。10 and 11 are detailed explanatory diagrams of the present invention when the seat 10 of the load 4 of the load detector 1 is spherical.
The bottom or top surface of the load detector 1 is not limited to a circular shape, but may be polygonal, and the shape of the groove in the jig 3 may also be triangular, trapezoidal, rectangular, semicircular, or the like.
しかして、たとえばトロイダル形の荷重検出器を圧延機
に組込むような場合、圧延機のハウジングの面精度が悪
く、荷重検出器の検出感度が劣化することがあるが、圧
延機のように大型の機械では、荷重伝達面の修正が不可
能に近い。For example, when a toroidal load detector is installed in a rolling mill, the surface accuracy of the rolling mill housing may be poor and the detection sensitivity of the load detector may deteriorate. With machines, it is almost impossible to modify the load transfer surface.
このようなさい、本発明によれば、荷重検出器本来の検
出精度を発揮させることができ、工業上うるところが太
きい。In this way, according to the present invention, the detection accuracy inherent in a load detector can be brought out, and there are great advantages from an industrial standpoint.
第１図は従来方式の説明図、第２図〜第５図は本発明の
一実施例の説明図、第６図は荷重検出特性図、第７図〜
第１１図はその他の実施例の説明図である。
１・・・・・・荷重検出器、２・・・・・・荷重伝達面
、３・・・・・・本発明にかかる治具、４・Ｆ・・・・
・・荷重、６０・・・・・・理想計算値の特性直線、６
１・・・・・・従来方式の特性曲線、６５・・・・・・
本発明による特性曲線。Fig. 1 is an explanatory diagram of the conventional method, Figs. 2 to 5 are explanatory diagrams of an embodiment of the present invention, Fig. 6 is a load detection characteristic diagram, and Figs. 7 to 5 are illustrations of an embodiment of the present invention.
FIG. 11 is an explanatory diagram of another embodiment. 1...Load detector, 2...Load transmission surface, 3...Jig according to the present invention, 4.F...
...Load, 60...Characteristic line of ideal calculated value, 6
1...Characteristic curve of conventional method, 65...
Characteristic curve according to the invention.
Claims (1)
材質が検出される荷重により、密着しやすい媒体部材を
介して荷重を加えるようにしたことを特徴とする荷重検
出方式。1. A load detection method characterized in that a load is applied between a load detector and a load transmission surface via a medium member that easily comes into close contact with the load whose shape and material are detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5549476A JPS5851210B2 (en) | 1976-05-13 | 1976-05-13 | Load detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5549476A JPS5851210B2 (en) | 1976-05-13 | 1976-05-13 | Load detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52138173A JPS52138173A (en) | 1977-11-18 |
| JPS5851210B2 true JPS5851210B2 (en) | 1983-11-15 |
Family
ID=13000178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5549476A Expired JPS5851210B2 (en) | 1976-05-13 | 1976-05-13 | Load detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5851210B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676927B2 (en) * | 1984-11-02 | 1994-09-28 | 大成建設株式会社 | Auxiliary member for load measurement |
-
1976
- 1976-05-13 JP JP5549476A patent/JPS5851210B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52138173A (en) | 1977-11-18 |
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