日光温室卷帘机荷载实时测量系统设计与试验
依据日光温室卷帘机的工作环境和特点，基于虚拟仪器技术，在 LabVIEW2010平台上设计开发了一套卷帘机荷载实时测量系统，据此进行了常用类型卷帘机的工作荷载在线实测，分别测量了卷绳式卷帘机和卷轴式卷帘机的实时工作荷载变化情况，测量总体数据误差不超过±6 N·m。结果表明，侧置卷轴上推式卷帘机最大工作负荷出现在温室顶部，后置卷绳上拉式卷帘机最大工作负荷具有位置不确定性；卷绳式卷帘机的工作负荷远小于卷轴式卷帘机；目前生产中实际使用的卷绳式卷帘机的最大输出荷载过大。该研究成果为卷帘机的设计、选用提供依据。...
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| Published in | 农业工程学报 Vol. 30; no. 1; pp. 138 - 145 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国农业大学水利与土木工程学院,北京,100083%中农金旺 北京 农业工程技术有限公司,北京,100083
2014
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| Subjects | |
| Online Access | Get full text |
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| Summary: | 依据日光温室卷帘机的工作环境和特点，基于虚拟仪器技术，在 LabVIEW2010平台上设计开发了一套卷帘机荷载实时测量系统，据此进行了常用类型卷帘机的工作荷载在线实测，分别测量了卷绳式卷帘机和卷轴式卷帘机的实时工作荷载变化情况，测量总体数据误差不超过±6 N·m。结果表明，侧置卷轴上推式卷帘机最大工作负荷出现在温室顶部，后置卷绳上拉式卷帘机最大工作负荷具有位置不确定性；卷绳式卷帘机的工作负荷远小于卷轴式卷帘机；目前生产中实际使用的卷绳式卷帘机的最大输出荷载过大。该研究成果为卷帘机的设计、选用提供依据。 |
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| Bibliography: | 11-2047/S greenhouses;loads;agricultural machinery;mat rolling machine;real time measurement;sunlight greenhouses In the paper, a study was conducted on the workload change of a mat rolling machine, which belongs to the agricultural machinery research of a sunlight greenhouse. The specific content is the on-line measurement for the mat roller workload on the foundation of the summarization of current related research. To be exact, first, the paper analyzes the working conditions and operating feature of the mat roller. Then, choosing a dynamic torque sensor of the strain gauge type, the real-time load measurement system was designed and developed on the LabVIEW platform, with the application of VI （virtual instrument） technology. Finally, the on-line test system for mat roller workload was launched and completed, whose main hardware was composed of the sensor and the signal amplifier, the data acquisition card, the electrical control system for mat roller, the stroke limiter, and the accessory device for sensor |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2014.01.018 |