Safety technical inspection of cran

Safety technical inspection of crane

Safety inspection technology is the key for heavy equipment management, effect using heavy machinery to a large extent determined in heavy machinery used in the process of safety and technical inspection and daily maintenance of the quality of maintenance and management. Do crane safety inspection technology, and based on the actual situation of the inspection, timely maintenance, maintenance, to extend equipment service life, improve equipment intact rate and utilization rate, eliminate hidden dangers of accidents to ensure safety in production, with important significance.

In order to guarantee from the safe operation of heavy machinery, shall establish and improve a hoisting machinery maintenance, regular inspection, safety regulations and shift system, education and relevant personnel carefully executed. The unit of heavy machinery should register, a detailed record of the every cranes, specifications, and other relevant technical data, at the same time, the crane of the previous technical inspection, overhaul, change the crane important performance and major accidents, should make a record, to preparation day after search and reference.

Do crane safety management work is an important content, is the need to strengthen safety education to the crane operator, supervise the operator conscientiously do a good job on the daily inspection of crane and maintenance. The safety inspection of the daily pre class crane and electrical system is the work of the operator's responsibility. Only daily inspection and professional inspection combined to ensure the safe operation of the crane.

Test of running environment

Although the operating environment is not the scope of the crane itself, but the safe operation of the crane has a direct relationship, it is also an essential part of the safety inspection of cranes. The inspection of a crane to see the operating range of the power line (especially the high-voltage line), the crane should be maintained at the time of the safe distance. Otherwise, corresponding measures should be taken to limit the operating range of the crane. To check the surrounding buildings, temporary facilities have no interfere with the normal operation of the crane, boom, balance and other parts will collide with the, especially in portal crane rail extension or stationary crane lift high displacement, especially should pay attention to check. There should also be a sufficient test for the vehicle crane to have enough support to the leg, the ground floor and the size of the bearing capacity of the ground. Detailed inspection of crane rail, rail, rail ends of the collision avoidance device, the track of the track and the rail temperature gap, etc..

Two, walking part of the inspection

Check the main walking wheel tread, the open wheel, coupling, transmission of the foundation bolts and walking wheel of the oil hole and site such as walking wheel tread surface hardness of the quality is not good, in the inspection can be seen on the block, overburden, and the open wheel, shaft coupling should be equipped with protective cover; if the transmission of the foundation bolts loose should be tightened in time; to keep walking axle oil hole smooth.

Three, metal structure inspection

Must pay attention to the plastic deformation of the metal structure. Girder arch degree is a key parts of the inspection of crane structure and avoid the overload, thermal radiation and other factors of the effects caused by crane girder arch disappear even under torsion. Also for boom with or without touch the bending and twisting; arm and balance arm root portion of the bolt lug, the bridge crane girder webs under cover and whether the split between weld should focus on examination.

Examination of important parts of the crane, tower crane tower, portal crane rotary center bearing seat, a crawler crane base is the main structure of the bolt. Because of the position of the frequent bolt under tensile force, shearing force and torque force, if occurred from the root fracture of the consequences will be very serious.

Four. Check the body and parts.

1, brake brake is an important component of the crane, a direct impact on the accuracy of the mechanism motion reliability. Therefore, it is necessary to carefully check up mechanism and luffing mechanism of the brake, brake shoe open degree and the friction element wear was observed. Band brake should pay attention to check the brake band steel back lining crack, the drive brake is flexible, brake frame is in good condition and main spring and an auxiliary spring elastic whether meet the requirements.

2, reducer to check whether there is leakage of oil, running the box body is no different. There are different ring general due to bearing problems or gear meshing side gap is too large, tooth wear and other reasons caused by serious.

3, steel wire rope and check the pulley wire rope has no breakage, abrasion, kink and corrosion, etc., to wear, broken wires in a more serious but not yet the standard position, to mark to focus on re examination; examination of wire rope reel safety limit is whether effective, reel wire rope clamp is pressed.

Inspection of the pulley is focused on whether the end of the groove wear is excessive, whether there is a crack in the cast iron pulley. Pitching mechanism of pulley block balance wheel is easy to be ignored, the installation must be checked before the rotation flexibility, if the balance wheel rotation is not flexible, installation about stoop Yang rope length and tension can not be the balance wheel adjustment from will increase in altitude adjustment stoop Yang steel wire rope and the difficulty of operating risk.

4 coupling, check the availability of loose coupling or "roll key". Focus on examination of elastic column pin joint coupling of the elastic rubber ring any abnormal wear, gear coupling should pay special attention to the pinion and ring gear wear condition. In between the two, the installation of the accuracy with larger offset case, the ring gear will soon bald. If this is the case, it is easy to have a serious occurrence.

結果 (中文) 3:

安全技术检验

起重机安全检测技术是的关键重型设备的管理，使用重型机械来很大程度上决定了重型机械使用过程中的安全技术检验和日常维护的维护和管理质量的效果。做起重机安全检查技术，并基于实际情况的检查，及时维修，维修，延长设备的使用寿命，提高设备完好率和利用率，消除事故隐患，确保安全生产，具有重要意义。

为了保证安全操作重型机械，应建立和完善起升机械维修、定期检查、安全法规和值班制度、教育及相关人员认真执行。重型机械的单位应登记，每一个起重机，规格，和其他相关技术数据的详细记录，同时，对以前的技术检查，检修起重机，改变起重机重要的性能和重大事故，应该使一个记录，以备日后搜索和参考。

做起重机安全管理工作是一项重要内容，是的需要加强安全教育，吊车操作员，监督经营者认真做好日常检查起重机和维护。日常的预级起重机和电气系统的安全检查是操作者的责任的工作。只有日常检查与专业检查相结合，以确保安全运行的起重机。

测试运行环境

虽然操作环境不是起重机本身的范围，但起重机的安全运行有直接关系，它也是起重机安全检查的重要组成部分。一台起重机的检查工作范围（特别是高压线），在安全距离时应保持吊机的工作范围。否则，应采取相应措施限制起重机的工作范围。检查周围的建筑物，临时设施有没有干扰的起重机，吊杆，平衡和其他部分的正常运行将碰撞的，尤其是在门式起重机轨道延伸或固定式起重机升排量高，尤其应注意检查。对车辆有足够的支撑，也应该有足够的测试，地面和地面承载能力的大小。详细检查起重机钢轨，钢轨，轨端的防撞装置，的轨道的轨道的钢轨温度差距，等。

2，行走部分的检查

主行走车轮踏面检查，的开放轮，耦合，传输地脚螺栓和行走轮的油孔和网站，如行走轮踏面硬度的质量是不好，检查可以看到块，覆盖层，和开式齿轮，联轴器应配备防护罩；如果传输的基础螺栓松动应及时拧紧；为了保持行走轴油孔的平稳性，三、金属结构检验必须注意金属结构的塑性变形。主梁拱度是起重机结构检查的重要组成部分，避免了起重机主梁在受扭时所产生的过载、热辐射等因素的影响。也为繁荣或无接触的弯曲和扭转；臂和平衡臂根部螺栓耳，的桥起重机梁腹板的掩护下，焊缝之间的分裂是否应重点检查。

考试的重要组成部分的起重机，塔式起重机，门座起重机回转中心轴承座，履带式起重机的基础是主体结构的螺栓。由于螺栓位置的频繁拉力下的拉力、剪力和扭力，如果发生从根部断裂的后果会非常严重。检查车身和零件。1、制动器制动器是起重机的重要组成部分，直接影响着机构的运动可靠性的准确性。因此，要仔细检查机构和变幅机构的制动器，观察制动蹄的开放程度和摩擦元件磨损。带式制动器应注意检查的制动带钢背李宁裂纹，制动器的传动是灵活，制动架是在良好的条件和主弹簧和辅助弹簧弹力是否满足要求。

2，检查减速器是否有漏油，运行箱体无不同。有不同的环一般由于轴承问题或齿轮啮合侧隙是太大，牙齿磨损及其他原因引起的严重。

3，钢丝绳检查滑轮钢丝绳有无破损，磨损，扭结和腐蚀，等，穿，断丝在一个更严重的，但没有在标准的位置，来标记重点重新检查；检查钢丝绳卷筒安全限制是否有效，卷筒钢丝绳夹是压。

检查滑轮聚焦结束槽磨损是否过度，是否有裂纹的铸铁滑轮。滑轮组平衡轮机制容易被忽略的投球，安装必须检查前转动灵活，如果摆轮转动不灵活，安装俯扬绳长度和张力不能平衡轮的调整将增加高度调整俯杨钢丝绳的难度的操作风险。

4耦合，检查松耦合或“滚键”的可用性。重点检查弹性柱销联轴器的弹性橡胶环的任何异常磨损，齿轮联轴器应特别注意的小齿轮和环齿轮磨损情况。在两者之间，安装的精度与较大的偏移量的情况下，环齿轮将很快秃。如果是这样的话，很容易产生严重的事件。