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A micro force measuring device

A measuring device, a technology of tiny force, applied in the direction of measuring device, force/torque/work measuring instrument calibration/test, measurement of balance force using force, etc. Difficulty in calibration, measurement data acquisition errors and other problems, to achieve the effect of small impact on measurement results, reasonable and reliable solutions, and small impact of measurement errors

Active Publication Date: 2015-10-28
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • A micro force measuring device
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Embodiment 1

[0024] This embodiment is an example of using the present invention to measure the starting torque of a bearing. The object 8 to be tested is a bearing, the fixed part 11 is the inner ring of the bearing, the movable part 10 is the outer ring of the bearing, one end of the horizontal bracket 5 fixes the inner ring of the bearing, and the other end moves the horizontal bracket 5 along the horizontal direction through the positioning mechanism 7 To move, the movable part 10 of the measured object 8 is fixed with a toggle mechanism 6, and the toggle mechanism 6 is a thin steel needle. In this embodiment, the position adjustment mechanism 7 is a screw nut mechanism.

[0025] In the initial state, the silk thread 3 and the weight 9 hang freely, and the horizontal bracket 5 is moved to make the toggle mechanism 6 fixed on the outer ring of the bearing contact with the silk thread 3, and the cantilever 103 of the workbench 1 is read to the toggle mechanism through the vertical scale ...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/08G01L25/00
Inventor 王慧牟瑾刚邢蓉
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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