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《自走式青贮饲料割捆一体收获机》等5项机械行业标准征求意见函重点内容

2019-08-06 16:57:34 来源:农机网整理发布 阅读量:25821 评论

导读:日前,SAC/TC 201 全国农业机械标准化技术委员会发布通知,由甘肃省机械科学研究院等单位负责起草的《自走式青贮饲料割捆一体收获机》等5项机械行业标准已按计划完成标准征求意见稿,现公开征求意见,邀请对标准征求意见稿进行审查并提出意见。

  【农机网 热点关注】日前,SAC/TC 201 全国农业机械标准化技术委员会发布通知,根据工业和信息化部办公厅工信厅科〔2018〕31号文、工信厅科〔2018〕54号、工信厅科〔2018〕73号下达的2018年行业标准制修订项目计划的安排,由甘肃省机械科学研究院等单位负责起草的《自走式青贮饲料割捆一体收获机》(计划号2018-0707T-JB)、《自走式青贮饲料捆捡拾裹膜机》(计划号2018-0708T-JB)和铜陵汇宇实业有限公司等单位负责起草的《水稻收割机下割刀装置技术规范》(计划编号:2018-1409T-AH)、《联合收割机 喂入搅龙》(计划编号:2018-1846T-AH)、《联合收割机 拨禾轮》(计划编号:2018-2098T-AH),已按计划完成标准征求意见稿,现公开征求意见,邀请对标准征求意见稿进行审查并提出意见。
 
  其中,各机械一般要求及性能指标如下:
 
  《自走式青贮饲料割捆一体收获机》
 
  自走(履带)式青贮饲料割捆一体收获机是用于青贮作物收获,把作物割断切成碎段,输送至成形腔高密度压实成圆柱体状,并用缠草网固形的机器。
 
  一般要求:
 
  ·青贮割捆一体机应按规定程序批准的产品图样和技术文件制造。
 
  ·各运动零部件动作应灵敏、协调、准确,无卡阻和异常声响。
 
  ·焊合件的焊缝应牢固、均匀、平整光滑,并清除熔渣。不应有裂纹、烧伤、咬边、漏焊、虚焊和夹渣等缺陷。
 
  ·主要紧固件强度等级:螺栓、螺钉机械性能应不低于GB/T 3098.1-2010中的8.8级,螺母应不低于GB/T 3098.2-2015中的8级。
 
  ·机械加工的配合表面不应有锈蚀、磕碰、凹痕、划伤等缺陷,毛刺应清除干净。
 
  ·输送带水平对角线尺寸差不大于其对角线尺寸的0.2%。
 
  ·同一回路中,各链轮轮齿对称中心面的位置度公差为链轮中心距的0.2%。
 
  性能要求:
 
  饲料含水率为65%~75%时(以全株玉米为例),青贮割捆一体机在正常作业条件下,其主要性能指标应符合以下规定。
 

        《自走式青贮饲料捆捡拾裹膜机》
 
  自走式青贮饲料捆捡拾裹膜机是指利用拉伸薄膜的张力卷绕青贮圆草捆的加工机械。
 
  一般要求:
 
  ·裹膜机应按规定程序批准的产品图样和技术文件制造。
 
  ·各运动零部件动作应灵敏、协调、准确、无卡阻和异常声响。
 
  ·焊合件的焊缝应牢固、均匀、平整光滑,并清除熔渣。不应有裂纹、烧伤、咬边、漏焊、虚焊和夹渣等缺陷。
 
  ·主要紧固件强度等级:螺栓、螺钉机械性能应不低于GB/T 3098.1-2010中的8.8级,螺母应不低于GB/T 3098.2-2015中的8级。
 
  ·机械加工的配合表面不应有锈蚀、磕碰、凹痕、划伤等缺陷,毛刺应清除干净。
 
  性能要求:
 
  裹膜机的主要性能指标:
 

       《水稻收割机下割刀装置技术规范》
 
  下割刀装置:装在收割机割台后壁下方与作业幅宽相等的副切割装置,其动力由割台部分传入,切割地表层以上的剩余茎秆,降低留茬高度,由切割器、摆动臂、支承臂、链环、传动装置等组成。
 
  一般要求:
 
  应符合本标准的规定,并按经规定程序批准的图样和技术文件制造。如用户有特殊要求,按双方协议规定执行。
 
  制造要求:
 
  ·摆轴、底板等焊接件应符合GB/T 985.1或GB/T 985.2的规定。焊接件应牢固可,焊缝应均匀,不应有虚焊、漏焊、烧穿、裂纹、气孔、夹渣等缺陷。
 
  ·铸钢、铸铁件不应有砂眼、夹渣、气孔、缩松缩孔、裂纹等缺陷。
 
  《联合收割机 喂入搅龙》
 
  喂入搅龙是指由左右焊有旋向相反螺旋搅龙叶片的筒体和中间装有偏心伸缩扒指的部分组成,工作时旋转的螺旋搅龙叶片将割下的作物沿搅龙轴向推送到中间伸缩扒指,伸缩扒指再将作物向后送入过桥。
 
  一般要求:
 
  应符合本标准的规定,并按经规定程序批准的图样和技术文件制造。如用户有特殊要求,按双方协议规定执行。
 
  制造要求:
 
  ·搅龙叶片材料应采用性能不低于GB/T 700-2006规定Q235牌号的热轧钢板制造,叶片表面应无锈蚀,无明显的凹凸不平现象,叶片表面必须加浸防锈油。搅龙叶片的外沿硬度为HB200~HB240。
 
  ·伸缩扒指应采用性能不低于GB/T 699-2015规定的45牌号钢制造。
 
  ·搅龙主要参数偏差应:
 
·焊接应牢固,焊缝应平整,不应该有裂纹、夹渣、烧穿和虚焊、漏焊等焊接缺陷。
 
  《联合收割机 拨禾轮》
 
  拨禾轮:将待割作物引向切割器、并将割后作物推向割台输送装置的旋转部件,多为偏心拨禾轮。由拨禾轮轴、辐盘、弹齿管轴、弹齿、压板和偏心环、液压缸、拨禾轮支架等组成。
 
  一般要求:
 
  应符合本标准的规定,并按经规定程序批准的图样和技术文件制造。如用户有特殊要求,按双方协议规定执行。
 
  制造要求:
 
  ·焊接件应焊合牢固,焊缝应平整,不允许有裂纹、夹渣、烧穿、虚焊及影响机械强度的焊接缺陷。
 
  ·拨禾轮每米幅宽所需功率消耗应不大于0.12kW。
 
  ·弹齿表面应光滑,弯曲处不允许有任何裂纹、凹痕等缺陷,表面应进行防锈处理。弹齿承受频率为6HZ的正弦应力,进行2×106个行程试验不断。
 
  ·拨禾轮液压缸应符合JB/T 10205液压缸的规定。
 
  本文由农机网整理发布,部分资料来源:SAC/TC 201 全国农业机械标准化技术委员会,如有侵权或异议请联系我们。
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