Device and method for testing frictional angles of small-diameter particles

A testing device and technology of small particle size, applied in the field of physical property detection of granular materials, can solve the problems of artificial error, small scope of application, low measurement accuracy, etc., and achieve the effect of preventing manual error, improving test efficiency and high measurement accuracy

Active Publication Date: 2017-06-13
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the test methods for detecting the friction relationship between the material and the contact surface mainly include the discharge method and the injection method, but these two methods have problems such as low measurement accuracy and inconvenient data observation and analysis.
Some devices for testing friction angle introduce tension gauges and displacement sensors, and are connected to computers, but this kind of device has relatively high requirements for particles and has a small scope of application. When a PC is used as a data acquisition

Method used

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  • Device and method for testing frictional angles of small-diameter particles
  • Device and method for testing frictional angles of small-diameter particles
  • Device and method for testing frictional angles of small-diameter particles

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Embodiment 1

[0043] The schematic diagram of the test device of a kind of small particle diameter particle friction angle of the present embodiment is as Figure 1 to Figure 5 As shown, it includes a controller, a tested board, a bracket 1, a bottom plate 2, a first rotating shaft 7, a driving device 5, a connecting structure 20, an inclination sensor 6, a numerical display module 8 and an image capture device 9, and the tested board It is detachably arranged on the base plate 2, and the driving device 5, the inclination sensor 6, the numerical display module 8 and the image capture device 9 are all connected to the controller; the first rotating shaft 7 is arranged on the bracket 1, and the bottom of the bracket 1 is provided with The rotating shaft 30, one end of the base plate 2 is rotationally connected with the support 1 through the rotating shaft 30, the other end of the base plate 2 can be connected with the first rotating shaft 7 through the connecting structure 20, and the driving ...

Embodiment 2

[0057] The schematic diagram of the test device of a kind of small particle diameter particle friction angle of the present embodiment is as Figure 1 to Figure 5 As shown, it includes a controller, a tested plate, a bracket 1, a base plate 2, a handle 3, a second rotating shaft 40, a connecting structure 20, an inclination sensor 6 and a numerical display module 8; the tested plate is detachably arranged on the base plate 2, the inclination sensor 6 and the numerical display module 8 are all connected with the controller; the second rotating shaft 40 is arranged on the support 1, the handle 3 is connected with the second rotating shaft 40, the bottom of the support 1 is provided with the rotating shaft 30, and the bottom plate 2 One end of one end is rotationally connected with the support 1 through the rotating shaft 30, and the other end of the base plate 2 can be connected with the second rotating shaft 40 through the connection structure 20; the inclination sensor 6 is arr...

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Abstract

The invention relates to a device and a method for testing frictional angles of small-diameter particles. The device comprises a controller, a tested plate, a support, a bottom plate, a first rotating shaft, connecting structures as well as a driving device, a tilt angle sensor, a value display module and image capturing equipment which are connected with the controller, wherein the tested plate is detachably arranged on the bottom plate; the first rotating shaft is arranged on the support, a rotation shaft is arranged at the bottom of the support, one end of the bottom plate is rotationally connected with the support through the rotation shaft, the other end of the bottom plate is connected with the first rotating shaft through the connecting structures, and the driving device is used for driving the first rotating shaft to rotate; the tile angle sensor is arranged on the bottom plate and used for measuring an included angle between the bottom of the bottom plate and the horizontal plane, the value display module is used for displaying values of the tile angle sensor, and the image capturing equipment is used for capturing images of sliding conditions of the small-diameter particles on the tested plate. The device is simple in structure and convenient to operate, measured values of the frictional angles can be obtained directly, and the measurement precision is high.

Description

technical field [0001] The invention relates to the technical field of physical property detection of granular materials, and more specifically, to a testing device and testing method for the friction angle of small-sized particles. Background technique [0002] Friction angle is one of the important indicators to characterize the friction characteristics and flow characteristics of material particles. In the production, processing and refining process of modern agricultural products, accurately detecting the friction relationship between materials and contact surfaces can effectively improve the production and processing efficiency of agricultural products. The friction angle is an important parameter that affects the inclination angle of the guide plate of the material box, the angle of the hole or groove of the seed meter, etc., and this factor needs to be considered in many related mechanical designs. Therefore, the measurement of the friction angle between the material ...

Claims

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Application Information

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IPC IPC(8): G01N15/00G01N19/02
CPCG01N15/00G01N19/02
Inventor 周志艳宋灿灿齐兴源罗锡文李克亮明锐何新刚孔令熙田麓弘
Owner SOUTH CHINA AGRI UNIV
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