中国铁道科学2011，Vol.32Issue(4)：109-116,8.
DQ45型钳夹式货车端盖方式运输1000MW发电机定子试验研究
Test Research on the Transport of 1 000 MW Generator Stator by DQ45 Schnabel Car with End Shield Mode
丁勇 1曲金娟 1王新锐 1张树鹏 1洪玉辉1
作者信息
- 1. 中国铁道科学研究院机车车辆研究所,北京100081
- 折叠
摘要
Abstract
In order to ensure the safety for the transport of 1 000 MW generator stator by DQ45 schnabel car with end shield mode, the strength test was conducted on the end shield, the bolt connecting the end shield and the stator, and the pull rod. According to the technical parameters of DQ45 schnabel car, the structural characteristics and material properties of the end shield, the author puts forward the test process and test method. The test results indicate: for bolt, the average pre-tightening force is 375. 9 kN and the average pre-tightening stress is 419. 5 Mpa. The pre-tightening torque is determined for (3 400+100) N ? M. The maximum stress increment after close car loading is 53. 7 Mpa and the maximum synthetic stress on transportation is 480. 6 Mpa. As for pull rod, the maximum pre-tightening force is 2 825 kN and the maximum pre-tightening stress is 301. 3 Mpa. The pre-tightening force is determined for 2 815~2 825 kN. The maximum synthetic stress after close car loading is 363. 8 Mpa and the maximum synthetic stress on transportation is 376. 5 Mpa. On the ear plate R150 arc zone, the maximum synthetic stress after close car loading is 212. 0 Mpa and the maximum synthetic stress on transportation is 268.1 Mpa. On the earhole zone, the maximum synthetic stress after close car loading is 121. 7 Mpa and the maximum synthetic stress on transportation is 181. 2 Mpa. The synthetic stress of end shield major parts is in the corresponding materials allowable stress range, meeting the requirements of transportation safety.关键词
DQ45型钳夹车/端盖/螺栓/拉杆/强度考核/试验研究Key words
DQ45 schnabel car/ End shield/ Bolt/ Pull rod/ Strength assessment/ Test research分类
交通工程引用本文复制引用
丁勇,曲金娟,王新锐,张树鹏,洪玉辉..DQ45型钳夹式货车端盖方式运输1000MW发电机定子试验研究[J].中国铁道科学,2011,32(4):109-116,8.
