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捷尔任斯基化工机械厂对Π233型800吨双动液压机在不拆主要件,不从液压机立柱上取下拉伸滑块和压边滑块的情况下进行了大修。液压机的结构特点为:所有的液压阀、带油箱的泵装置、压边油缸和主油缸的充液箱以及几乎所有的管道都装在上横梁上。压边和拉伸油缸都放置在上部,如果要拆下它们以便进行任何形式的修理,只能卸下上横梁。由于拆装工作量大,需要拆开管道中的几乎一切连接和拆卸所有的接线,因此大大增加了修理和调整工作的时间。为了缩短大修周期,Π233液压机的修理工作有以下几项。预先准备好液压阀(工作滑阀,控制滑阀和安全阀)来更换已损坏的。更换工作在不拆卸主要管道下进行。Π233液压机经六年三班制工作后显出,在油缸和滑块的所有的导套和压紧套中损坏得最厉害的是移动工作台的缸套和拉伸滑块与压边
Dzerzhinsky Chemical Machinery Factory on Π233 800 tons of double-acting hydraulic machine without demolition of the main parts, not from the hydraulic column removed under the drawing slider and the pressure side of the slider overhaul. The structural features of the hydraulic press are: All hydraulic valves, pump unit with reservoir, fill cylinder for blank holder and main cylinder, and almost all piping are mounted on the upper cross member. Both the crimping and drawing cylinders are placed on top and only the top beam can be removed if they are to be removed for any kind of repair. Due to the large amount of disassembly and assembly work, it is necessary to disassemble almost everything in the pipeline to connect and disassemble all the wires, thereby greatly increasing the time for repairing and adjusting the work. In order to shorten the overhaul cycle, Π233 hydraulic machine repair work has the following. Prepare the hydraulic valve (working slide valve, pilot slide valve and safety valve) in advance to replace the damaged one. The replacement work is carried out without dismantling the main pipeline. Π233 hydraulic machine after six years of three-shift work shows that in all the hydraulic cylinder and slider guide sleeve and compression sleeve damaged the most powerful is the mobile table cylinder liner and stretch the slider and the pressure side