Experimental device for measuring the friction coefficient between the silo wall and the storage material
A friction coefficient and experimental device technology, applied in measurement devices, mechanical devices, analysis of materials, etc., can solve problems such as high requirements for instrument accuracy, poor measurement results, and high device costs, to ensure stability and high measurement accuracy. , to avoid the effect of measuring the accuracy of the bottom
Active Publication Date: 2018-03-09
NANJING UNIV OF SCI & TECH
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Problems solved by technology
This method is suitable for measuring the friction coefficient of materials with large particles, but the measurement effect is not good for materials with small particles; this method has high requirements for instrument accuracy and relatively high device cost
Method used
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Embodiment 1
[0033] An experimental device for measuring the friction coefficient between the silo wall and the storage material, including a straight climbing belt conveyor 1 (commercially available), a sample 2 of the silo wall to be tested, a fixing clip 3, a connecting rod 4, and a dynamometer 5 (commercially available), data acquisition device 6 (commercially available), storage material to be tested 7, storage material discharge device 8 (commercially available), storage material recycling device 9 (commercially available).
[0034] The storage material discharge device 8 is arranged above the climbing section of the straight climbing belt conveyor 1, and the storage recovery device 9 is arranged at the end of the straight section of the straight climbing belt conveyor 1, and the end is far away from At one end of the climbing section, the storage material 7 to be tested is arranged in the storage material discharge device 8, so that the storage material 7 to be measured from the stor...
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The invention discloses an experimental apparatus for testing a friction coefficient between a silo wall and a stored material. A stored material discharge device is arranged above a climbing section of a direct-movement climbing belt conveyer; a stored material recovery device is arranged at the end part of a direct-movement section of the direct-movement climbing belt conveyer; the to-be-measured stored material is arranged in the stored material discharge device; a to-be-measured silo wall sample is arranged on the direct-movement climbing belt conveyer, one end of the sample is located above the climbing section of the direct-movement climbing belt conveyer, and the other end of the sample is located on the direct-movement section of the direct-movement climbing belt conveyer; the to-be-measured silo wall sample is provided with a fixing clip, the fixing clip is fixedly connected with a dynamometer by a connecting rod, the dynamometer is higher than the direct-movement section of the direct-movement climbing belt conveyer, and the dynamometer is connected with a data acquisition unit. The experimental apparatus can be used for accurately measuring the friction coefficient between the to-be-measured silo wall and the to-be-measured stored material, dynamically observing the change of the friction coefficient between the to-be-measured silo wall and the to-be-measured stored material, and meanwhile detecting and monitoring the wear degree of the to-be-measured silo wall.
Description
technical field [0001] The invention belongs to the field of engineering quality detection, and in particular relates to an experimental device for measuring the friction coefficient between a silo wall and storage materials. Background technique [0002] In silo design, it is necessary to consider the friction between the silo wall and the storage material, and in the silo engineering quality inspection, it is also necessary to measure the friction force between the silo wall and the storage material. [0003] Cao Xianjun proposed a method for measuring the friction coefficient of spinning and drafting rubber parts in "Incline Type Friction Coefficient Meter". When measuring, first place the sample to be tested on the slide plate, and then manually lift the slide plate until the sample is just along the slide plate. Slide, and then obtain the friction coefficient between the sample and the slide plate through simple calculation. This measurement method has relatively high ...
Claims
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IPC IPC(8): G01N19/02
CPCG01N19/02
Inventor 孙巍巍程奇鹏张正洋凌欢语张帅张栩东卢赛赵志强董浩林
Owner NANJING UNIV OF SCI & TECH