摘要
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300r/min、下旋耕刀数量5～7个、上旋耕刀数量3～4个、取土宽度150mm、取土深度20～95mm。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。
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 r
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2013年第6期28-34,共7页
Transactions of the Chinese Society of Agricultural Engineering
基金
黑龙江省科技攻关项目(GA09B108)
关键词
农业机械
结构设计
转速
筑埂机
agricultural machinery
structural design
speed
ridger
