Laboratory Scale of Seed Damage of Coarse-Grain Depending on Groove Diameter and Depth in Roller Devices

2021 ◽  
Vol 37 (3) ◽  
pp. 411-416
Author(s):  
Emrah Kus ◽  
Yildiran Yildirim

HighlightsThe rate of damage to the bean seed by the grooved roller planter was determinedThe effects of planting speed, seed rate, groove diameter, and groove depth on seed damageThe most suitable groove diameter and depth were determined in bean plantingAbstract. Grooved roller planters can be used in the planting of small and large seeds when they are produced in the appropriate groove diameter and groove depth depending on the seed dimensions. In this study, the rate of damage to the dry bean seeds of the grooved roller device, which was modified and placed on the bottom of the warehouse of a grain planter, was investigated. Nine grooved rollers manufactured in different groove diameters (18, 20, and 22 mm) and groove depths (5, 8, and 11 mm) were tested at 80, 120, and 160 kg ha-1 seed rates and 8, 13, and 18 min-1 feed shaft rotation speeds. Breakage, crushing, and cracking in dry bean seeds were considered as damaged seeds. According to the results, the increase in the seed rate, feed shaft rotation speed, and groove depth reduced the seed damage rate. The increase in groove diameter increased the rate of seed damage. The lowest seed damage rate values were obtained at 160 kg ha-1 seed rate, 2 m s-1 forward speed, 18 mm groove diameter, and 11 mm groove depth. Keywords: Active groove length, Dry bean seed, Forward speed, Grooved roller, Seed rate.

1974 ◽  
Vol 22 (1) ◽  
pp. 130-133 ◽  
Author(s):  
Robert John. Evans ◽  
Doris H. Bauer ◽  
Kathleen A. Sisak ◽  
Patricia Ann. Ryan

2011 ◽  
Vol 201-203 ◽  
pp. 290-297
Author(s):  
Jing Hui Zhou ◽  
Shang Ping Li ◽  
Xi Lai

The size of small-scale sugarcane harvester is decided by installation position of the cutting device of it. In this paper , Several simulation experiments were made by established a virtual prototype of sugarcane cutting system, and the relationship between the effect of holding sugarcane(measured by angle) and the installed position of cutting disk with different forward speed and different rotational speed was researched, and propose that the rotation speed of sugarcane holding device and forward speed of harvester influence the installed position of the cutting device by analyzing the data from virtual experiment. At last, a empirical regression equation which indicate the relationship among rotation speed of sugarcane holding device (n), forward speed of harvester (v) and the installed position is given.


2019 ◽  
Vol 10 (02) ◽  
pp. 59-63
Author(s):  
Rodika Rodika ◽  
Tuparjono Tuparjono ◽  
Budi Otomo ◽  
Riska Ade Febryani

Betel nut palm plant is one of the many benefits and efficacy, especially seeds. Areca nuts are widely used as the main raw material in the process of making drugs, cosmetics, slimming, snacks, sweets, and coffee. Betel nut processing into betel nut is still constrained by the tool is still modest, are still using wood beams repose knife to split betel nut into two parts. To overcome these problems needed betel nut splitter machine with a capacity of 250 kg / h. This engine design is expected to help farmers during the process of betel nut processing into dried betel nut. The working principle of betel nut splitter machine originated from an electric motor that produces rotation is forwarded to the reducer and to the cutting blade associated with two gears. Betel nut is inserted through the insertion funnel towards the rotor has 4 channels / trench, and rotor spinning and crashing betel nut rotating blades reversed so the rotor besidesbetel nut split into two parts. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents.


2021 ◽  
pp. 477-487
Author(s):  
ChunBao Xu ◽  
HongJian Zhang ◽  
ShuangXi Liu ◽  
Chengfu Zhang ◽  
Junlin Mu ◽  
...  

This study aims to evaluate the effects of different parameter settings on the ditching performance using a ditching-fertilizer. We aimed to improve the performance of ditching-fertilizer machine performance in sustainable agriculture. With Box-Behnken experimental design method, taking forward speed, the rotation speed of the ditching cutter, and the deflection angle of ditching cutter as experimental factors, taking ditching depth stability and soil coverage rate as test indexes, the operation parameters of orchard ditching-fertilizer machine are studied. The regression model between test indexes and experimental factors is established, and the influence of each factor on the experimental indexes is analyzed. The test factors are comprehensively optimized. The results show that when the forward speed is 0.8km/h, the rotation speed of the ditching cutter is 348r/min, and the deflection angle of the ditching cutter is 32°, the ditching effect is the best. At this time, the stability coefficient of the ditching depth is 98.33%, and the soil coverage rate is 81.53%. As for the field test, which measured the stability coefficient of ditching depth, and the average soil cover rate is 96.24%, and 79.14%, respectively, and the relative errors from the optimized value are 2.17%, and 3.02%, respectively.


2021 ◽  
Vol 11 (24) ◽  
pp. 12158
Author(s):  
Zhilong Zhang ◽  
Aijun Geng

Reducing ear damage is the key to improving the quality of maize harvests. In order to reduce the impact and damage of the ear caused by the ear snapping mechanism, this paper proposes a method to convert ear deformation energy during collision into elastic potential energy in the ear snapping mechanism. According to the above method, a low-damage maize snapping mechanism was designed. In order to verify the feasibility of energy conversion in reducing damage, the dynamic model of the contact between the ear and the snapping plate was established, and a dynamic simulation analysis was carried out based on the finite element method (FEM). In order to obtain better parameters for the improved mechanism, a test rig was established, after which a performance test was carried out on the test rig. The results showed that the primary and secondary order that affected the ear damage rate was the rotational speed of the snapping roller, the spring stiffness and the forward speed. The data processing software Design Expert was used to optimize the parameters, it was concluded that when the rotational speed was 805 r·min−1, the forward speed was 1.29 m·s−1, the spring stiffness was 33.5 N·mm−1, the model predicted that the ear damage rate was 0.023%. Therefore, this paper could provide further reference for research into maize low-damage ear snapping technology.


2019 ◽  
Vol 33 (1) ◽  
pp. 178-184
Author(s):  
Nader Soltani ◽  
Christy Shropshire ◽  
Peter H. Sikkema

AbstractDuring 2016 and 2017, four field experiments were conducted at Huron Research Station near Exeter, ON, to evaluate the sensitivity of dry bean grown under a strip-tillage cropping system, to potential herbicides for the control of glyphosate-resistant (GR) horseweed. At 8 wk after emergence (WAE), saflufenacil, metribuzin, saflufenacil+metribuzin, 2,4-D ester, flumetsulam, cloransulam-methyl, and chlorimuron-ethyl caused 13% to 32%, 8% to 52%, 32% to 53%, 5% to 7%, 13% to 21%, 16% to 29%, and 23% to 43% visible injury in dry beans, respectively. Saflufenacil decreased aboveground biomass 65% in kidney bean and 80% in white bean. Metribuzin decreased biomass 82% in kidney bean and 50% in white bean. Saflufenacil+metribuzin decreased biomass 88% in kidney bean, 68% in small red bean, and 80% in white bean. Chlorimuron-ethyl decreased biomass 40% in white bean. There was no decrease in dry bean biomass with the other herbicides evaluated. Metribuzin and saflufenacil+metribuzin reduced kidney bean seed yield 72% and 76%, respectively. Saflufenacil+metribuzin, flumetsulam, cloransulam-methyl, and chlorimuron-ethyl reduced small red bean seed yield 39%, 27%, 30%, and 54%, respectively. Saflufenacil, metribuzin, saflufenacil+metribuzin, flumetsulam, cloransulam-methyl, and chlorimuron-ethyl reduced seed yield of white bean 52%, 32%, 62%, 33%, 42%, and 62%, respectively. There was no decrease in dry bean yield with the other herbicides evaluated. Among herbicides evaluated, 2,4-D ester caused the least crop injury with no effect in dry bean seed yield.


2014 ◽  
Vol 670-671 ◽  
pp. 604-608 ◽  
Author(s):  
Jiang Hao Wu ◽  
Jie Hu

The aerodynamics of the rotor/wing during conversion from rotary to fixed-wing flight was numerical investigated. It is shown that increasing forward speed can provide more thrust when rotation speed and collective angle maintain a constant, but also appear greater torque. Thrust of the rotor/wing can maintain aircraft to hover at some cases when forward speed changes with other variable. As long as major and minor rotor converse with reasonable variable change alternatively, the dual rotor/wing can converse smoothly. Moreover, the total drag of minor first conversion is smaller than that of major first conversion.


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