Device and method for detecting and testing running resistance of hull model of ship-shaped tractor

Abstract

The invention discloses a device and method for detecting and testing the running resistance of a hull model of a ship-shaped tractor. The device comprises a paddy field soil tank, a traction device,a data acquisition device and hull models, wherein the traction device is arranged at one end of the paddy field soil tank, a series of hull models with different grounding angles and different curvature radiuses form a hull model set, and various working conditions of the paddy field are obtained through changing the type of soil in the paddy field soil tank, the saturated moisture content of thesoil, the surface water depth and the standing time. The device can perform resistance detection on hull models with different structures under different grounding specific pressures, traction speedsand paddy field environmental conditions, so that the running resistance of different types of ship-shaped tractors is obtained. The device is compact in structure, the traction speed can be adjustedin a stepless manner and synchronously recorded with the pulling force, and the requirements of various types of ship-shaped tractors for running resistance measurement are met. The device can also be applied to measuring influences imposed on the running resistance by paddy field environmental conditions and hull structure parameters.

Description

Technical field [0001] The invention belongs to the field of agricultural machinery and relates to a test device for detecting running resistance of a boat-shaped tractor under different working conditions. Background technique [0002] Paddy field is the main part of farming. However, due to the traditional farming habits of reclaiming the lakes in the last century, perennial soaking in water, and land intensive transformation, the power of machines and tools has become more and more powerful, resulting in "the deeper the mud feet-the greater the power-the bottom layer The vicious circle of destruction-deeper mud feet has resulted in deeper and deeper mud feet in paddy fields in some areas (depth ≥40cm). Traditional work tools cannot be used in the field. The machine-plowing boat tractor produces power machinery in the background. However, due to the diverse structure of the paddy soil and the large differences in operating conditions, the hull design of the existing mechanical ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome that the traditional soil tank test bench is only used for dry land soil operation equipment operation performance test, and cannot simulate complex paddy field soil operation conditions, and cannot be used for the measurement of the hull running resistance of tractors with different structures. The present invention provides a boat-shaped The tractor hull model driving resistance detection test device and its method, by filling the paddy field soil tank with the type of soil required for testing, pretreatment, and water filling to simulate paddy field operating conditions such as different water content, surface water depth, etc., using different structures of the hull model in the To measure the driving resistance under the conditions of traction speed and ground pressure, and to provide test and detection devices for the structural design and forward resistance measurement of boat-shaped tractors

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