Small force measuring device

Abstract

The invention belongs to the fields of machinery and test, and in particular relates to a small force measuring device. The small force measuring device comprises a workbench, a vertical ruler, a silk yarn, a horizontal ruler, a horizontal bracket, a dial needle, a positioning nut and weights, wherein the workbench consists of a horizontal platform, a vertical rod and a suspension arm; one end of the silk yarn is tied to the suspension arm, and the other end of the silk yarn is hung with the weight; the vertical ruler is fixed on the vertical rod of the workbench, and the horizontal ruler is fixedly connected with the horizontal platform of the workbench; one end of the horizontal bracket is used for fixing the fixing part of a measured object, and the other end of the horizontal bracket is provided with a positioning mechanism; and the movable part of the measured object is fixed with the dial needle. The device can measure small force through utilizing a simple principle, is reasonable and reliable in scheme and low in part dependence, does not use precise parts and is low in design and manufacturing cost; the temperature and humidity have small influence on a measurement result, and the device is low in environmental requirements; the device is simple in structure and high in measurement precision; the device is convenient to operate, does not need special training, and does not have special skill requirements, and data are convenient to read; and the device can also be a calibration device of a high-precision force transmission device.

Description

technical field [0001] The invention belongs to the fields of machinery and testing, and in particular relates to a micro force measuring device. Background technique [0002] In the field of precision mechanical design and testing, high-precision force measuring devices are usually required, especially for small force (0.0001N ~ 1N) measurement tools, such as checking the starting force of high-precision bearings. , the commonly used force measuring devices often use force sensors for measurement, and the installation fixture of the sensor is designed for auxiliary measurement. Such methods generally have many force transmission links, auxiliary devices affect the accuracy of measurement results, and it is difficult to measure and calibrate micro force sensors. Measurement The data collection process will introduce errors and other problems, which are currently difficult to solve. Contents of the invention [0003] The purpose of the present invention is to provide a mic...

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Problems solved by technology

[0002] In the field of precision mechanical design and testing, high-precision force measuring devices are usually required, especially for small force (0.0001N ~ 1N) measurement tools, such as checking the starting force of high-precision bearings. , the commonly used force measuring devices often use force sensors for measurement, and the installation fixture of the sensor is designed for auxiliary measurement. Such methods generally have many force transmission links, auxiliary devices affect the accuracy of measurement results, and it is difficult to measure and calibrate micro force sensors. Measurement The data collection process will introduce errors and other problems, which are currently difficult to solve

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