Agricultural material collision restitution coefficient test platform

Abstract

The invention discloses an agricultural material collision recovery coefficient test platform and belongs to physical property test devices. A mirror, a scale wall plate, a height adjusting rod, first and second electromagnetic valves, a support and a time-delay relay are arranged on a base, the mirror and the scale wall plate form a 135-degree included angle to be connected into a whole, the support is hinged to a collision wall plate through a pin shaft, angle adjusting screws A and B are arranged on two sides of the pin shaft on the support respectively, upper and lower supporting plates are disposed on the height adjusting rod, upper and lower adsorption tubes are installed on the upper and lower supporting plates respectively, an air-sucking pump is respectively communicated with the first and second electromagnetic valves through a connecting air tube, a high-speed camera is vertical to the scale wall plate, horizontal adjusting bolt groups are arranged at four corners of the base respectively, the platform can perform testing on collisions of agricultural materials in various forms and conditions and collisions among materials, the structure is novel and reasonable, the adaptive capacity is high, the application range is wide, the usage is reliable, and the test accuracy is high.

Description

technical field [0001] The invention belongs to physical performance testing equipment, and mainly relates to a testing platform for the collision restitution coefficient of granular agricultural materials. Background technique [0002] In the field of agricultural materials, the collision recovery coefficient reflects the performance of materials that can be restored to the original state after collision deformation, and is the basic data for the parameter design and performance analysis of combine harvester cleaning vibrating screens and precision seeders. In addition, the collision restitution coefficient is one of the most basic particle properties required for discrete element software simulation. The more accurate the parameters input during the simulation, the more accurate the calculation output will be. In order to measure and obtain the collision restitution coefficient, some scholars at home and abroad have made some collision restitution coefficient test benches,...

AI Technical Summary

Problems solved by technology

[0005] The invention overcomes and avoids the problem of poor accuracy of the test results of the collision restitution coefficient between the test materials in the traditional method of connecting agricultural materials with wire ropes, and adopts height-adjustable upper and lower adsorption tubes and a collision wall plate structure with adjustable inclination angles , can test the collision of various forms of agricultural materials and the collision restitution coefficient between materials, and provide technical support for the research of discrete element method on agricultural materials. It has novel and reasonable structural design, strong adaptability, wide application range and reliable use. , The characteristics of high test accuracy

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