甘蔗立式夹持输送通道剥叶装置设计与试验

周绍鹏; 刘庆庭; 杨丹彤; 黄淼; 何腾锋; 黄峥

doi:10.7671/j.issn.1001-411X.201807002

甘蔗立式夹持输送通道剥叶装置设计与试验

Design and test on leaf-stripping device of sugarcane harvester by a vertical clamping-conveying channel

摘要

摘要:
目的探讨甘蔗立式夹持输送剥叶技术在整秆式收割机中的可行性，解决现有整秆式甘蔗联合收割机甘蔗通道长、作业效率低的问题。

方法以4ZZX-48型甘蔗收割机为作业平台，在输送通道上设计立式剥叶装置。通过收获试验，分析了夹持输送链轮转速(n₁)、剥叶辊筒角度(β)、剥叶辊筒转速(n₂)和甘蔗喂入率(q)等因素对甘蔗立式夹持输送剥叶性能的影响。

结果 n₁和n₂对剥叶性能有显著影响，各因素对剥叶性能的影响依次为n₁>n₂>q>β。n₁为60 r/min、β为30°、n₂为360 r/min、q为7.5 kg/s时，甘蔗叶片剥净率为76.6%，剥叶性能达到最优。曲线回归分析表明，剥叶辊n₂/n₁与剥净率之间存在着二次多项式关系，n₂/n₁在5~6之间时，剥净率约77%，达到试验最优值。

结论基于甘蔗立式夹持输送剥叶技术的收割机具有可行性，本研究结果对研发新型整秆式甘蔗收割机有一定参考价值。

Abstract:
Objective To explore the feasibility of sugarcane vertical clamping-conveying technology for the whole stalk harvester, and provide a technical support for solving the problem of long sugarcane channel and low working efficiency of the existing stalk-type sugarcane combine harvester.

Method A kind of vertical stripper was designed in a clamping-conveying channel for 4ZZX-48 sugarcane harvester . A harvesting test of this device was conducted in field. The influence factors of leaf stripping effect were analyzed, including the rotation rate of conveyor chain sprocket(n₁), the installation angle of leaf stripping roller(β), the rotation rate of leaf stripping roller(n₂) and sugarcane feeding speed(q)

Result The values of n₁ and n₂ had significant impact on leaf stripping effect. The ranking of influence was n₁>n₂>q>β. When n₁ was 60 r/min , n₂ was 360 r/min , β was 30° and q was 7.5 kg/s, the machine got the best stripping effect and leaf stripping rate was 76.6%. The results of curve regression analysis showed that there was a quadratic polynomial relation between clearing rate and the ratio of n₂ to n₁. When the value of n₂/n₁ ranged from 5 to 6, clearing rate reached the maximum of around 77%.

Cluclusion This harvester, based on sugarcane vertical clamping-conveying and stripping technology, is feasible and has certain reference value for research and development of a new whole stalk sugarcane harvester.

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