为改善荔枝的采摘条件,提高其采摘效率,通过分析荔枝的栽培生长特性,设计了一种简易且不伤果的荔枝串果采摘器具;建立了采摘器剪切运动和剪切力模型,利用Matlab进行了结构参数优化;应用Adams和AN-SYS构建了采摘器虚拟样机及有限元模型,进行了运动仿真分析和强度分析,验证了采摘器整体设计和结构参数的合理性。采摘试验表明,采摘器样机可快速采摘且柔性接果。

In order to improve litchi harvesting conditions and raise working efficiency , a simple and no-damage litchi string-fruit harvesting device was designed by analyzing the growth characteristics of litchi .The shearing movement and shear stress model were established , and their structural parameters were optimized in Matlab .Meanwhile , Adams and ANSYS software were used to build virtual prototyping and finite element model of the harvesting device .By the motion simulation analysis and strength analysis , the rationality of whole design and construction parameters were verified .The harvesting experiment showed that the prototype can fast harvesting and flexible receive .

应用三维建模软件Pro/E构建振动式林果采摘臂虚拟样机模型,然后将模型导入仿真软件ADAMS中建立动力学模型,并进行采摘臂动力学仿真计算。同时,分析了采摘臂在采摘头定位以及振动过程中所受的力及力矩特性,验证了采摘臂的设计能够满足要求,并为振动式林果采摘机的物理样机优化设计提供理论参考。

The three-dimensional virtual prototype of forest-fruit vibratory harvester was established by Pro/E software , then the dynamic prototype was converted and the dynamics simulation were worked out by the Adams system simulation software for the arm .The mechanical characteristic of the arm was measured during positioning and vibrating the head of arm, and it provides theoretical references to optimize the physical prototype .

本文通过房山区观光采摘园实地调查，统计出了房山区现拥有的采摘园的数量、果树品种、面积以及观光果园的接待采摘游客的数量、采摘果品总量、采摘收入等数据。提出了在房山区建设观光采摘果园的一些建议：建设观光园，要具有一定的规模，注意充分地利用房山区丰富的地理资源优势，统一规划，合理布局，加强养护管理，重视水土保持，体现出房山区地区的地方特色。

Based on the field investigation to the fruit picking orchard in Fangshan district, the data of fruit picking orchards was gotten in Fangshan district, including the numbers of orchards, species of fruit trees, their areas, the reception numbers of sightseeing tourists, the total quantity of picking fruits, the income and so on. Some constructive suggestions were proposed for tourism fruit picking or-chards as follows: first of all is that a certain scale to build is must, then it need to pay attention to fully utilize the advantage of geographical resources of Fangshan district, in additional, the unified plan-ning, rational distribution, strengthening conservation and management are all important, which should reflect the local characteristics of Fangshan district.

油茶是我国重要的经济林，然而人工采收油茶效率低、作业条件差等缺陷严重制约着我国油茶产业的发展，实现油茶果采摘的机械化与自动化成为急需解决的问题。为此，根据油茶果生长环境与采摘特性，设计了一种能够有效采摘油茶果的采摘机器人，并对采摘机器人机械臂的伺服系统进行了选型设计。

Camellia fruit ( Oil-tea) is China''s important economic forest , but artificial oil-tea harvesting , such as low efficiency and poor operation condition defects seriously restricts the development of camellia industry in our country .Re-alizing the mechanization and automation of the camellia fruit picking become urgently needs to solve the problem .Ac-cording to camellia fruit growth environment and picking characteristics , we designed a kind of effective picking camellia fruit picking robot , and the picking robot manipulator type selection design of the servo system .

经田间鲜果采样分析，测得柴达木枸杞2个主栽品种宁杞7号和宁杞1号鲜果百粒质量、百粒长、百粒直径，均在采摘一期（8月10日）最高，其次为采摘二期（9月1日），采摘三期（9月22日）最低，其整体外观品质随着采摘期的延后而降低。实验室测得鲜果多糖含量，宁杞1号表现在采摘二期多糖含量最高，随后依次为三期和一期；宁杞7号表现在采摘三期含量最高，二期其次，一期最低。测得黄酮含量，2个品种均在采摘一期最低，二期有所增加，三期最高，黄酮含量随着采摘期的延后而增加。

The hundred grain weight, hundred grain length and hundred grain diameter of wolfberry, the two cultivars Ningqi No.7 and Ningqi No.1, are measured, and it is shown that the highest are in the earliest picking period (August 10) , followed are in the later picking period (September 1) , the final picking period (September 22) are the lowest, and its overall appearance quality as picking period of delay is reduced. The fresh fruit polysaccharide content in the Ningqi No.1 is measured, and it is shown that the highest is the later picking period, the final picking period is the next, and the earliest picking period is the lowest. In the Ningqi No.7, the final picking period is highest, the later picking period is the next, and the earliest picking period is the lowest. The flavonoids content is measured, and it is shown that two varieties both are the lowest in the earliest picking period, followed are the later picking period, the final picking period are the highest, and its flavonoid