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过去对于起重量为5～50/10吨桥式起重机的制造,长期以来,一直是沿用着国外四十年代的资料。它有两根用钢板焊接成的箱形主粱,从结构设计上看来,显得体积笨、自重大、耗用钢材多;由于机器自重和输压大,厂房基建的投资也大。在机械和电气方面也比较落后,零部件的寿命短,性能上也满足不了用户的使用要求。因此,对老的双梁起重机进行产品革命,改变落后面貌,更好地满足社会主义建设的需要,就成为迫切的任务。1965年初,我厂通过产品设计革命化运动,破除了迷信,树立了敢赶敢超的革命思想,在交通大学的配合
The past for the lifting capacity of 5 ~ 50/10 tons of overhead cranes, for a long time, has been the use of foreign forties information. It has two steel beams welded into the box-shaped main beam, from the structural design point of view, appears to be stupid, self-weight, consume more steel; due to the weight of the machine and pressure, investment in capital construction is also large. In the mechanical and electrical are also relatively backward, short life of parts, performance can not meet the user’s requirements. Therefore, it is an urgent task for the old double-girder cranes to revolutionize products, change the backwardness and better meet the needs of socialist construction. Early 1965, I plant through the product design revolutionized the movement, get rid of superstition, set a courage to dare to surpass the revolutionary idea in cooperation with Jiaotong University