CAJ | 학술논문

为解决人工筑埂劳动强度大的问题,设计了一种悬挂式水田筑埂机,对其结构和工作机理进行介绍.筑埂机采用上、下2组旋耕刀进行取土和圆盘压辊镇压成埂.建立筑埂机旋耕装置的运动模型,通过对运动学模型的分析,确定了取土旋耕刀的转速300 r/min、下旋耕刀数量5~7个、上旋耕刀数量3~4个、取土宽度150 mm、取土深度20~95 mm.通过对推压筑埂装置的受力分析,得出推压筑埂装置的驱动力矩.设计了180°翻转装置,解决了在田埂转角处不能修埂的问题.对筑埂机进行性能检测,检测结果表明,筑埂质量良好,均达到了各项农艺技术指标的要求.
위해결인공축경노동강도대적문제,설계료일충현괘식수전축경궤,대기결구화공작궤리진행개소.축경궤채용상、하2조선경도진행취토화원반압곤진압성경.건립축경궤선경장치적운동모형,통과대운동학모형적분석,학정료취토선경도적전속300 r/min、하선경도수량5~7개、상선경도수량3~4개、취토관도150 mm、취토심도20~95 mm.통과대추압축경장치적수력분석,득출추압축경장치적구동력구.설계료180°번전장치,해결료재전경전각처불능수경적문제.대축경궤진행성능검측,검측결과표명,축경질량량호,균체도료각항농예기술지표적요구.
Artificial ridge building is very labor intensive and the ridge building quality is difficult to be guaranteed, so ridge building must be achieved by a ridge building machine. For paddy-field machinery ridge building technology, Japan is the world’s leading researcher. However, Chinese and Japanese soil is different, so Japan's ridge building machine is not suitable to operate in China. In order to solve the high labor intensity for artificial ridge building, a hanging paddy-fields ridge building machine was designed, whose structure and working mechanism were introduced. The ridge is built by adopting the up and under, two groups of rotary tillage blades to gather soil and the coin disc and roller to compact soil. The under rotary tillage device was composed of rotary tillage blades with different gyration radius, while the up rotary tillage device was composed of rotary tillage blades with the same gyration radius. The under rotary tillage device can get soil, throw soil and cut out step-type ridges in the rotation process. The pushing and compacting ridge building coin disc can collect soil and compact soil on the step-type ridge, which makes the built ridge more solid and resistant to collapsing. The up rotary tillage device can break dry soil and weed in the soil surface, which ensures the ridge building will be more solid. The kinematic analysis model for rotary tillage device of ridge building was established, through analyzing the kinematic model, the parameters values and changing range of rotary collecting blades for soil were determined, the rotational speed is 300r/min, the number of down rotary collecting blades is 5~7, and up rotary collecting blades is 3~4, the width of collecting soil is150 mm, the depth of collecting soil is 20~95 mm. Through stress analysis of soil from compacting ridge building devices, the driving moment for soil compacting was obtained and the soil compacting ridge building device was designed, which also provided reasonable parameters for the optimization of compacting ridge building device. A 180°turn-over device was designed, which solved the ridge building problem in the corner of field ridges. When the soil absolute moisture content was 23.3%, the soil solid degrees was 0.31 MPa, the environment temperature was 18 and environment humidity was 49%.℃Performance testing was carried out for the ridge building machine, and the test results show that the built ridge had good quality, and had reached the agronomic technical requirements.