Design, Simulation, and Test of a New Threshing Cylinder for High Moisture Content Corn

Li, Xiaoyü; Du, Yuefeng; Guo, Jinglin; Mao, Enrong

doi:10.3390/app10144925

Cited by 30 publications

(17 citation statements)

References 25 publications

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“…Corn seeds are non-chaffy and because of their large size and mass are susceptible to mechanical damage during processing. This predisposed the seeds to physical and physiological deterioration and ultimately loss of seed quality [ 27 , 36 ]. In addition, corn seeds are very fragile due to the lack of gluten, which is a natural internal binder in the grains [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of cushion box and closed let-down ladder usage on damage to corn during handling: physiological deterioration

Shahbazi

2022

Plant Methods

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Background Corn seeds have a high susceptibility to mechanical damage due to their large size and mass. The main purpose of this study was to evaluate the effects of the cushion box and closed let-down ladder usage in minimizing the negative influence of the free fall on the storage potential of corn seeds. Corn seeds were evaluated for the extent of physiological damage by measuring the seed deterioration by the accelerated aging test (percentage loss in germination in the accelerated aging test), using three drop methods (free fall, with cushion box, and with closed let-down ladder) at three drop heights (5, 10, and 15 m) and five different moisture contents (10, 15, 20 and 25%). Results The drop methods had a significant effect on the storage potential of corn seeds. Sample seeds dropped without a ladder (free fall) had a significantly higher average physiological quality loss of 13.87% (loss in accelerated aging germination). In the use of the cushion box, the average percentage loss in germination was calculated to be 11.38%, which was decreased by about 18% more than the free fall. Sample seeds dropped with the closed let-down ladder had a lower average percentage loss in the germination of 8.78%, which showed that the closed let-down ladder significantly helped to reduce mechanical damage to corn seeds by about 37% comparing free fall and by about 23% to the use of the cushion box. The amounts of loss in physiological quality of corn seeds increased significantly with increasing drop height and moisture content, but the use of the cushion box and closed let-down ladder systems somewhat reduced the adverse effect of the above factors. Empirical models were developed for the dependency of physiological damage to corn seeds due to the impact caused by free fall, on the drop height and moisture content at different drop methods. Conclusions To minimize mechanical damage to seeds as they fall into the bin, a let-down ladder should be installed in the bin so that it can receive seeds from the filling spout with minimum damage.

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Section: Introductionmentioning

confidence: 99%

Effects of cushion box and closed let-down ladder usage on damage to corn during handling: physiological deterioration

Shahbazi

2022

Plant Methods

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“…To verify the effect of the automatic row alignment system on improving the quality of maize harvesting, a field trial was conducted in October 2021 in Rizhao, Shandong Province, on a maize seed direct harvesting machine manufactured by Wuzheng Group. The test was conducted in accordance with GB/T 5667-2007 "Production Test Methods for Agricultural Machinery", and a plot of 30 m in length was selected for the test before the test, including a 5 m acceleration zone, a 20 m test zone and a 5 m stopping and deceleration zone [40]. Normally, the harvester passed through the acceleration zone and the test zone in turn and finally stopped at the stopping and deceleration zone.…”

Section: Automatic Alignment System Effect Discussionmentioning

confidence: 99%

Development and Testing of Automatic Row Alignment System for Corn Harvesters

Geng

Liu

et al. 2022

Applied Sciences

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Corn harvester row alignment is a critical factor to improve harvesting quality and reduce cob drop loss. In this paper, a corn harvester automatic row alignment system is designed with a self-propelled corn combine harvester, incorporating a front-end touch row alignment mechanism of the cutting table and a harvester steering control system. Corn stalk lateral deviation from the reference row during harvesting is detected by a front-end touch-row alignment mechanism that serves as an input to the automatic alignment system. The harvester steering control system consists of Hirschmann PLC controller, electric steering wheel, steering wheel deflection angle detection device, display module and mode selection module, etc. The adaptive fuzzy PID control algorithm is used to determine the desired turning angle of the harvester steering wheel by combining with the harvester kinematic model, and the model is simulated and analyzed by Matlab/Simulink software. The automatic row alignment system was mounted on a 4LZ-8 self-propelled corn harvester for field tests, and the test results showed that the average percentage of deviation of corn stalks from the center of the row alignment cutting path within ±15 cm during the automatic row alignment process was 95.4% at harvester speeds ranging from 0 to 4.6 km/h, which could meet the requirements of the corn harvester for row alignment harvesting. The test results meet the requirements of the corn harvester for row alignment and serve as a benchmark for the research on automatic row alignment of corn harvesters.

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“…Knowledge of the frictional properties of plant materials is essential in designing mechanical units of machines and selecting parameters for many post-harvesting processes (Wójcik et al, 2020;Tang et al, 2021;Shi et al, 2022). A similar expression of the importance of frictional properties of the grain for machinery or facilities design is also pointed out by many other researchers Li et al, 2020;Kopeć-Jarosz & Wójcik, 2021).…”

Section: Introductionmentioning

confidence: 92%

Effect of Moisture Content on Frictional Properties of Some Selected Grains in Indonesia

Bintoro¹,

Zahra²,

Khansa³

et al. 2023

JST

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The frictional property of grains is one of the most important engineering parameters in developing solid bulk handling of grains. It is necessary for designing agricultural facilities and production process activities. These properties are expressed as internal friction angle (φ) and wall friction angle (θ), which are known to be affected by the moisture content of the grains. This research investigates the effect of moisture content on the values of φ and θ of some selected grains. In the research, some indigenous Indonesian grain types, including rough rice, white rice, corn, soybean, and coffee, each in three varieties and three level of moisture contents, were used as the research samples. Those angles were measured using a self-constructed direct shear cell apparatus. Three different normal loads for each grain type were used with three replications. It is concluded that φ and θ of the tested grains increase with moisture contents with different trends of increments. The relationship of those angles with moisture contents can be expressed as linear regression equations. The slope of the regression lines for both φ and θ is significantly affected by grain type (p<0.05). For φ, coffee (Excelsa) is the most susceptible to the change in moisture content, while dent corn (Hibrida) is the least affected one. For θ, soybean (Galunggung) is the most susceptible to the change in moisture content, while rough rice (Mapan 5) is the least affected one.

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Design, Simulation, and Test of a New Threshing Cylinder for High Moisture Content Corn

Cited by 30 publications

References 25 publications

Effects of cushion box and closed let-down ladder usage on damage to corn during handling: physiological deterioration

Effects of cushion box and closed let-down ladder usage on damage to corn during handling: physiological deterioration

Development and Testing of Automatic Row Alignment System for Corn Harvesters

Effect of Moisture Content on Frictional Properties of Some Selected Grains in Indonesia

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