Device and method for detecting and testing the running resistance of a ship-shaped tractor hull model
A technology of driving resistance and test device, which is applied in the field of agricultural machinery, can solve the problems that the driving resistance cannot be measured and the working conditions of paddy field soil cannot be simulated, and achieve the effect of compact structure of the device
Active Publication Date: 2019-11-15
ZHEJIANG UNIV
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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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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the technical features in each embodiment can be combined with each other without conflict, which does not constitute a limitation.
[0030] Such as figure 1 As shown, the boat-shaped tractor hull model driving resistance detection test device includes a paddy field soil tank, a traction device, a data acquisition device, and a hull model 9. The traction device is placed at one end of the paddy field soil tank, and the hull model 9 is placed in the paddy field soil tank. The device is fixed on the hull model 9.
[0031]The paddy field soil tank includes a tank box 1, a base 2, a drain pipe 3, a ball valve 4, a vertical bottom beam 5, a contour detection pipe 7, a rubber hose 8, and an inner tank 10, and multiple bases 2 are horizontally and evenly fixed on the ground. The upper surface of the base 2 is on the same horizontal plane, the tank box 1 is ...
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The invention discloses a device and a method for detecting and testing the running resistance of a boat-shaped tractor hull model. The device includes a paddy field soil tank, a traction device, a data acquisition device, and a hull model. The traction device is arranged at one end of the paddy field soil tank. The hull models of different curvature radii series form the hull model group. By changing the soil type, soil saturated water content, surface water depth and resting time in the paddy field soil tank, various operating conditions of the paddy field are obtained. The resistance test is carried out under specific pressure, traction speed and paddy field environmental conditions, so as to obtain the walking resistance of different types of boat tractors. The device is compact in structure, the traction speed is steplessly adjustable and is recorded synchronously with the pulling force, which meets the requirements for measuring the running resistance of various types of boat tractors. It can also be used to determine the influence of paddy field environmental conditions and hull structure parameters on driving resistance.
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 fields are the main part of farming, but due to the traditional farming habits of reclamation from lakes in the last century, soaking in water all the year round, and land intensive transformation, the power of machines is increasing, resulting in "the deeper the mud foot - the greater the power - the plowing bottom The vicious cycle of destruction-deeper mud feet has caused the mud feet of paddy fields in some areas to become deeper and deeper (depth ≥ 40cm), traditional working tools cannot be used for field operations, and mechanical tillage boat tractors are used to produce power machinery in the background. However, due to the diverse composition of paddy field soils and the large differences in operating conditions, the hull desi...
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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 王永维何焯亮王俊曹明郝一枫
Owner ZHEJIANG UNIV