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针对我国大蒜主产区种植特点研制的4DLB-2型半喂入自走式大蒜联合收获机,在国内同类机型中技术水平较为先进。为进一步掌握该机性能,在已有试验基础上对该机的田间收获性能进行测试,测试不同作业速度、种植模式下的生产率、损失率、含土率、伤蒜率、留梗长度等主要技术指标,考核该机的田间作业效果,并对测试数据进行了分析。结果表明:该机生产率为0.13～0.21hm2/h,大蒜损失率1.1%～2.3%,含土率1.3%～1.5%,伤蒜率1.7%～2.2%,蒜头留梗长度31.9～43.6mm,各项性能指标均达到设计要求。
4DLB-2 semi-feeding self-propelled garlic combine harvester developed for planting characteristics of main producing areas of garlic in our country has advanced technology in similar domestic models. In order to further understand the performance of this machine, the field harvesting performance of this machine was tested on the basis of the existing tests to test the main operating speed, productivity, loss rate, soil content, garlic injury rate, Technical indicators, assessment of the machine field operations, and the test data were analyzed. The results showed that the productivity of this machine was 0.13 ~ 0.21hm2 / h, the loss rate of garlic was 1.1% ~ 2.3%, the rate of soil was 1.3% ~ 1.5%, the rate of injury garlic was 1.7% ~ 2.2% The performance indicators have reached the design requirements.