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Small measuring range force transducer and method thereof for indirect measuring axle load

A force sensor, small range technology, applied in the direction of measuring force, measuring device, instrument, etc., can solve the problems of inconvenient sensor replacement, no installation space, large sensor volume, etc., achieving small size and short replacement period. , the effect of range and volume reduction

Active Publication Date: 2011-06-15
西安航天三沃机电设备有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the shaft seat sensor is used, it is also because the measuring range is too large, resulting in the sensor being too large and there is no space for installation. Moreover, it is very inconvenient to replace the sensor in this use environment.

Method used

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  • Small measuring range force transducer and method thereof for indirect measuring axle load
  • Small measuring range force transducer and method thereof for indirect measuring axle load
  • Small measuring range force transducer and method thereof for indirect measuring axle load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Referring to Figures 1, 2, and 3, the small-range load cell 1 has a strain beam 101 that experiences bending normal stress, and a small semi-cylindrical bearing head 102 with an enlarged diameter extends from the front end of the strain beam, and its tail end A diameter-expanding cylindrical fixing seat 103 is extended, and a diameter-expanding stopper 105 is extended at the tail end of the cylindrical fixing seat 103. The small-range load cell strain beam 101 can adopt a conventional The rectangular cantilever beam structure, that is, the loading surface of the strain beam 101 is rectangular, and the strain gauge 104 is attached to the strain beam 101 . In order to facilitate installation and replacement, the diameter of the small semi-cylindrical carrying head 102 is preferably smaller than the diameter of the fixing seat 103 .

[0038] The steps of the indirect measurement shaft load measurement method using the above-mentioned small-range load cell are as follows: ...

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Abstract

The invention is a small measuring range force transducer and a method thereof for indirectly measuring axle load. Two ends of a loaded axle are respectively provided with a small measuring range force transducer provided with a strain beam for sensing bent normal stress. The invention uses the principle that under the action of loading, the deflection of some point of the loaded axle is equal tothat of the point of the small measuring range force transducer, adopts the small measuring range force transducer to sense the deflection generated by stress of the loaded axle, determines the measuring range of the transducer and parameters of a stress region by the design specification of the deflection and stress transducer, and manufactures the transducers suitable for the above indirect measurement. The invention completely avoids the traditional design thought directly measuring the axle load, changes the direct measurement of the axle load into indirect deflection measurement, reducesthe measurement range and volume of the transducer greatly, and achieves the special skillfully deflected effect.

Description

technical field [0001] The invention relates to a method for indirect measurement of shaft load by a small-range load cell. Background technique [0002] The traditional shaft load measurement generally adopts the method of directly measuring the load, such as: the shaft is made into a shaft load cell or the shaft seat is made into a load cell or the ordinary load cell is installed under the shaft seat to measure the force value. / weight measurement. However, in some special axial load measurement occasions, it is often affected by external factors such as location, space, installation conditions, and operating conditions, or by the structure and parameters of the load cell itself (such as: volume, shape, range, accuracy, etc.) etc.), the above-mentioned direct shaft load measurement method cannot be used. For example: in the smelting of alloy steel, it is necessary to weigh the ingredients, which is to measure the weight of molten steel in the environment of high-temperat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22
Inventor 张荣军
Owner 西安航天三沃机电设备有限责任公司
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