丘陵山地桑叶采收机转运装置设计与试验

Design and experimentation of the transport mechanism for mulberry leaf harvesting machine in hilly terrain

针对丘陵山地桑叶采收机械缺乏、桑叶采摘收集困难、手工采摘劳动强度大等问题,研制一种丘陵山地桑叶采收机,并着重对转运装置进行设计与试验。首先分析桑叶采收机工作环境与桑叶采收流程,完成转运装置接料机构、导料机构、送袋机构的工作原理分析与结构设计计算。其次根据设计参数制作出桑叶采收机样机,在丘陵山地桑园进行转运装置试验。最后根据试验得到结论:桑叶采收机转运装置拨料器转速为80 r/min,自动脱钩长度尺寸b1=25 mm、宽度尺寸b2=25 mm、深度尺寸b3=15 mm,挂钩厚度h3=8 mm时,接料机构转运过程桑叶平均转运率为95.78%,导料机构桑叶平均入袋率为97.88%,送袋机构掉袋率为1.25%,自动脱袋成功率为98.75%,桑园田间试验表明桑叶采收机转运装置可以满足桑叶采收的功能需求,验证设计的正确性及可行性。

Aiming at the lack of mulberry leaf harvesting machinery in hilly and mountainous areas,the difficulty of mulberry leaf harvesting and collection,and the labor intensity of manual harvesting,developing a mulberry leaf harvesting machine for hilly and mountainous terrains.and mountainous areas,and focused on the design and test of the transfer device.Firstly,analyze the working environment of the mulberry leaf harvester and the mulberry leaf harvesting process,and complete the analysis of the working principle and structural design and calculation of the receiving mechanism,guiding mechanism and bag feeding mechanism of the transfer device.Secondly,according to the design parameters,the prototype of mulberry leaf harvester is made,and the test of the transfer device is carried out in the hilly and mountainous mulberry gardens.Finally,according to the test to get the conclusion:mulberry leaf harvester transfer device toggle speed for 80 r/min,automatic decoupling length size b1=25 mm,width size b2=25mm,depth size b3=15 mm,when hook thickness h3=8 mm,the receiving mechanism transfer process mulberry leaves average transfer rate of 95.78%,the guide mechanism mulberry leaves into the bag of the average rate of 97.88%,the bag feeding mechanism bag drop rate of 1.25%,the success rate of automatic bag removal is 98.75%.The field test in mulberry orchard shows that the mulberry leaf harvester transfer device can meet the functional requirements of mulberry leaf harvesting,which verifies the correctness and feasibility of the design.