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国家“智能农机装备”重点专项“扭腰轮式拖拉机整机试验”完成

2020-12-29 09:23:36 来源:中国一拖 阅读量:16978 评论

导读:近日,通过系列验证,中国一拖承担的国家重点研发计划“智能农机装备”重点专项“扭腰轮式拖拉机整机试验”成功达到试验任务目标,工作时可靠性高,标志着中国一拖圆满完成了该任务。

  【农机网 明星企业】近日,通过系列验证,中国一拖承担的国家重点研发计划“智能农机装备”重点专项“扭腰轮式拖拉机整机试验”成功达到试验任务目标,工作时可靠性高,标志着中国一拖圆满完成了该任务。
 
  扭腰轮式拖拉机采用前后分段扭腰式连接传动系统,传动系统中间设计有扭腰摆动姿态调整装置连接前后变速箱,实现对地面的适应,特别适用于丘陵山地作业。而中国一拖此次承接的“扭腰轮式拖拉机整机试验”任务主要包括对扭腰轮式拖拉机常用工况车速下单轮打滑、同侧双轮打滑和异侧双轮打滑时各车轮扭矩进行测试。
 
  要完成扭腰轮式拖拉机的各种车轮滑转状态下的车轮扭矩测试试验需要满足两个基本条件:一是有车轮扭矩信号采集、传输、分析处理系统;二是有轴距可以调整的四驱转鼓试验台。目前国内既没有通用的车轮扭矩信号采集、传输、分析处理系统,也没有合适的轴距的四驱转鼓试验台。
 
  经过充分的市场调研,反复分析对比,中国一拖产品试验部放弃了高价购买外国试验传感器和定制转鼓试验台的方案,在现有条件和成本预算下创新思路,利用东华测试无线扭矩测试系统技术,在拖拉机驱动轮轴处贴应变片,测量拖拉机驱动轮轴扭矩,完成对拖拉机驱动轮轴扭矩信号的无线采集。同时,配合使用转速测量装置测量拖拉机驱动轮轴转速,将数据传送至计算机实时存储和显示。此外,中国一拖产品试验部还设计制作了专用滚道,模拟各种滑转条件代替转鼓试验台,免去基建施工。
 
  经过测试,中国一拖开发的模拟打滑辊道试验台可以完全实现样机在单侧单轮打滑、单侧双轮打滑和异侧双轮打滑状态时的场地模拟;无线测试设备能采集到任何时间内车轮所受的扭矩以及转速等试验数据;确定的扭腰轮式拖拉机扭矩分配测试试验方法可以达到试验任务目标,获得了测试专家组的一致认可和高度评价。
 
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