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桥式起重机械主要存在的问题

远华起重 时间:2012-12-03 点击:1185次

摘要:桥式起重机械主要存在的问题....……
(1)回转支座与塔帽、起重臂等主要受力构件连接孔磨损、拉长。由于使用日久,逐渐磨损、拉长,工作时会造成过度摇摆、晃动;
(1) the rotary support with the tower cap, boom as the main stress components connecting holes, elongated abrasion. Due to prolonged use, wear, gradually elongated, work will cause excessive swing, swing;
(2)外观油漆剥落,部分母材和焊缝锈蚀严重(见放置位置不妥;(3)塔身根部、塔帽封板部位及结构变截面处易强管理的若干要求。(4)新、旧标准节混用。标准节无年限设别标志;
(2) the appearance of the paint peeling off, part of the base metal and weld corrosion (see position wrong; (3) some requirements of root, tower cap seal plate location and structure of variable cross-section to strong management. (4) new, old standard section mix. The standard section without life equipment sign;
(5)起重臂下弦杆走变幅小车表面磨损普遍超标。小车滚轮长期在轨道上运行导致明显磨损;小车变形或四轮未调整到位,轨道提前磨损;(6)回转大齿轮磨损严重、变形。由于设备使用年长,传动效率降低,传动噪音大;
(5) the bottom chord of the trolley jib go surface wear generally exceeded. Carriage of long-term in orbit leads to significant wear; car deformation or four round without adjustment in place, the track ahead of wear; (6) the rotating big gear wear serious, deformation. Because the equipment using the older, lower transmission efficiency, transmission noise;
(7)附墙杆自制或改制不规则,连接方式不按规定。由于附墙杆擅自制作,安装图方便,端部焊固,使杆件的安全性、稳定性、安装质量都存在不确定因素。
(7) attached to the wall rod made or restructuring of irregular, connection not according to the provisions of. The wall attached bar unauthorized production, convenient installation diagram, end is welded and fixed, so that the safety, stability, quality installation bar there are uncertain factors.
(8)升降机齿轮齿条啮合侧隙大。由于使用年长,齿轮齿条磨损,传动效率降低,运行噪音大;
(8) lift rack and pinion meshing backlash of large. Due to the use of older, rack and gear wear, low drive efficiency, running the noise;
(9)升降机齿条窜动。由于使用年长或未及时紧固固定螺栓,导致螺孔遭多次冲击后增大,影响传动效果又带来安全隐患。
(9) lift rack movement. Due to the use of older or not timely fastening bolt screw, lead by the repeated impact after the increase, affect the transmission effect and bring security risks.
(10)对重导轨磨损、接口错位。由于使用年长或未及时紧固固定螺栓,轨道侧逐渐磨损;
(10) for heavy rail wear, interface dislocation. Due to the use of older or not timely fastening bolt, track side wear;
(11)高强螺栓多次使用,新旧混用。高强螺栓的更换无要求、无记录。
(11) high strength bolt used for many times, the old and new mixed. Replacement of high strength bolts without demand, without recording.

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