上海重型机器厂生产的３５ＭＮ油压机在更换立捣缸密封圈时，由于原设计的缺陷，需拆卸上横梁才能进行更换工作。上横梁重２０多ｔ，拆卸时还需拆４个紧固螺母（加热），拆装一次需１～１０天的检修工期，且找正安装很困难，易产生事故。为了解决上述问题，提出了立捣装置... When the 35MN hydraulic press manufactured by Shanghai Heavy Machinery Factory replaced the stamping cylinder seal, due to the defects of the original design, it was necessary to disassemble the upper beam to carry out the replacement work. On the cross-beam weighs more than 20 t, demolition also need to remove the four fastening nut (heating), disassembly time required 1 to 10 days of maintenance period, and find the installation is very difficult, easy to produce accidents. In order to solve the above problems, put forward the pounding device ...