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height="473" title="起重配g" align="" /> </div> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">产品介绍Q?/span></strong>起重行机构R轮的水^偏斜值是起重机的重要技术参敎ͼ偏斜D差会造成啃轨Q增大运行阻力,产生振动和噪壎ͼ加剧了轨道和车轮的磨损,降低了v重机的用寿命,所以各cv重机刉技术条仉要规定允许的数倹{?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">产品应用Q?/span></strong>在应用中Q主要是Ҏ不同的品结构采取相应的工艺措施控制q?a href="http://www.yxcsfsk.com/hcl/" target="_blank">行R?/a>的水q_斜倹{较常用且公益设施相对简单的设计l构是:行车R轮装配到支架上组成行?b><a href="http://www.yxcsfsk.com/" target="_blank" style="font-weight:bold">车轮l?/a></b>Q例如角形u承箱形式车轮l合台R?5度剖分u承箱形式车轮l,起重Zl构刉后安装Qv重R轮组采购Q水qx向调整合适后固定。这cȝ构的~点是:车轮l只起固定R轮的作用Q装配后车轮不能摆动。如果主l构刉误差车轮l安装部位水qx向无量可调,必须要进行大量的修理工作才能装配Qv重R轮组Q增加了刉的成本和周期。另外,行R轮水q_斜超差时l修工作量大Q需要将车轮l拆下,重新调整装配?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">工艺备注Q?/span></strong>轴承配合处应优先选用轴公差比孔公差高一U的寸_ֺl合Q若旋{_ֺ要求不高时允讔R用相同的等U。不允许选用轴和孔尺寸公差精度等U相差两U或孔比轴高的精度等U组合?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">工艺程Q?/span></strong>  </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";">Q?Q铸造:铔R保证材质均匀Q无气孔、砂|然后q行退火处理?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";">Q?QR床粗车毛坯内孔、外圆,直径?mm余量待热处理后精车成?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";">Q?Q热处理Q淬?回火Q行车轮的材质ؓ中碳合金钢,如按正常的加热淬火、回火,则踏面和心部为相同的度Q综合力学性能不好Q无法满_技术要求。ؓ了达到图U技术要求,使其表面辑ֈ淬火温度Q而心部温度相对较低;实现加深表面淬硬层深度、提高表面和外沿的硬度?nbsp; </span> </p> <p> <div style="text-align:center;"> <img src="http://cmsimgshow.zhuchao.cc/11377/201908260953172051137760039.jpg" alt="起重配g" width="690" height="583" title="起重配g" align="" /> </div> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">装炉ҎQ?/span></strong>工g热处理装炉时Q用一块钢板放在料盘上面,三个R轮叠攑֜一h在钢板上Q保证它们之间严密接触,内孔装入铔R屑(防止工g内孔氧化Q,车轮间用耐火U维毡填实,上面再放上一块钢板压实?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">加热速度Q?/span></strong>适当提高淬火温度和淬火加热速度Ҏ高表面硬度有利?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">加热温度Q?/span></strong>工g室温---750度时保温1时----淬火温度Q?60~890度)---淬火Q注意此时不保温Q?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">淬火介质Q?/span></strong>采用水淬是提高硬度非常有效的ҎQ但该材质水淬开裂的危险特别大,其是外沿要开裂,所以不能采用。水淬ah法也可提高表面硬度,但是工g的外沿尺寸较,与踏面的截面差较大,淬火时冷却时间不一_水冷旉不好控制Q也不易采用。所以可以选用ҎҎQ但要保证工件出炉后快入a淬火?nbsp; </span><br /> <span style="font-size:14px;font-family:"Microsoft YaHei";"><strong><span style="font-size:18px;">Ҏ回火Q?/span></strong>采用高温回火Q减了工g大量的残余应力,回火l织׃温回火马氏体Q变为具有良好综合力学性能的高温回火烦氏体。这样在保证t面h高硬度的同时又保证工件具有良好的韧性,高温回火的温?50--580度。保?---3时后在I气中自然冷却?/span><br /> <span style="font-size:18px;font-family:"Microsoft YaHei";"><strong>公司介绍Q?/strong></span><span style="font-family:"Microsoft YaHei";font-size:14px;">沛_上v重型起重机有限公怸业生产各U型受规格的起重机成套零部g。公司围l着起重机械的品特点,自主开发了适合起重机卷{生产的d注机,生的卷{机械性能辑ֈ或超q了国家的技术。引q被誉ؓ二十一世纪“绿色铸造”的消失模铸造工艺,开发生产各U大中型非标L及配Ӟ质量优良?/span><span style="font-family:"Microsoft YaHei";font-size:14px;">采用半自动埋弧焊、二氧化x体保护焊焊接工艺q备全套的焊接工装Q焊接质量达到国家Acȝ~技术要求,q具有大型热处理炉,满大型铆焊件的热处理要求?/span> </p> <p> <span style="font-size:14px;font-family:"Microsoft YaHei";"> </span> </p></p> </div> <div class="tag">相关标签Q?a href='/key.aspx?k=%e8%b5%b7%e9%87%8d%e6%9c%ba%e9%85%8d%e4%bb%b6'>起重机配?/a>,<a href='/key.aspx?k=%e8%b5%b7%e9%87%8d%e6%9c%ba%e9%85%8d%e4%bb%b6%e4%bb%b7%e6%a0%bc'>起重机配件h?/a>,<a href='/key.aspx?k=%e8%b5%b7%e9%87%8d%e6%9c%ba%e9%85%8d%e4%bb%b6%e6%89%b9%e5%8f%91'>起重机配件批?/a>,</div> <div 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