压机液压系统.doc

Table of contents 目录1 Safety instructions 1-1 安全操作说明1.1 General 1-1 概论1.2 Safety valves 1-1 安全阀1.3 Hose lines 1-1 软管2 Safety precautions 2-1 安全预防2.1 General information 2-1 概论2.2 Depressurizing the pressure vessel 2-1 给压力容器减压2.2.1 Manual depressurization of plunger accumulator 2-2 活塞储能器的手动减压2.3 Depressurizing pipelines 2-2 给管道减压2.4 Measuring and venting hydraulic systems 2-3 测量和给液压系统排气2.4.1 General information 2-4 概论2.4.2 Preparing to vent the system 2-4 给系统排气的准备工作2.4.3 Venting process 2-4 排气步骤3 Maintenance instructions 3-1 维护说明3.1 General 3-1概论3.2 Cleaning the hydraulic system 3-1液压系统的清洁3.3 Flushing the hydraulic system 3-2 液压系统的冲洗 3.3.1 Flushing time 3-2 冲洗时间3.3.2 Flushing procedure 3-2 冲洗步骤3.3.2.1 Switch on the cooling and filter pump 3-2 打开冷却过滤泵3.3.2.2 Switch on the main drives 3-2 打开主驱动设备3.3.2.3 Flush the ring line 3-2 冲洗油缸管道3.3.2.4 Flush the blocks 3-4 冲洗集成阀块Flush the main cylinder blocks 3-4 冲洗主油缸块3.3.3 Install control valves 3-5 控制阀安装3.3.3.1 Storing control valves 3-5 控制阀的储存3.4 Hydraulic oil 3-6 液压油3.4.1 Hydraulic tank and filling 3-6 液压油箱和液压油的填充3.4.2 Oil change 3-6 液压油的更换3.4.3 Notes on the miscibility of hydraulic oils 3-7 关于液压油的黏度的说明3.5 Recharging with nitrogen 3-7填充 氮气3.6 Taking back into operation 3-9 1 Safety instructions 安全说明1.1 General 概论It is indispensible to have read and understood the “Safety” chapter.In addition, follow the safety instructions in the "Maintenance" chapterfor maintenance, servicing and repair work.In addition, follow the safety instructions in the "Maintenance" chapterfor maintenance, servicing and repair work.It is essential to comply with all safety regulations!认真阅读和理解安全说明在进行维修和维护工作时严格遵守安全操作说明1.2 Safety valves 安全阀Pressure limiting valves preventing excessive pressure buildup are installedon the oil sides. The pressure setting is locked by a lead seal andmust never be modified.限制过多的压力形成的压力控制阀被安装在阀体的油侧。

压力装置被铅密封锁定，注意这个设定的压力千万不能被改动 Never modify the safety valve settings ！！！千万不要更改安全阀装置Safety block of nitrogen bottles ，oil sided 液压油侧的 氮气瓶的安全阀块 1 manual release 手动减压2 accumulator safety valves 储能器的安全阀3 electrical release 自动减压 Refer to the “Certificates” chapter for the official acceptance certificate.Pressure limiting valves are safety-related parts. Never repair replaced pressure limiting valves yourself. Pressure limitingvalves must not be repaired by anyone other than the equipmentmanufacturer. 千万不要更换压力限制阀。

除设备供应商外任何人不能够修理和更换此阀1.3 Hose lines 软油管The owner is responsible for ensuring that hose lines are replaced at suitableintervals, at least every 5 years, including the time of storage (max.2 years).Hose lines must be replaced even if there are no signs of defects whichcould affect their safety. 至少5年对软管更换一次（这个时间段包括最多的2年的储存时间）即使软油管没有明显的残缺在5年内必须更换一次 2 Safety precautions 安全预防措施Depressurize the pipeline system and block the low-pressure tank beforecommencing maintenance or repair work on the hydraulic equipment.在给液压设备开始进行维护和修理工作前， 要给液压系统减压和堵塞低压油箱。

In addition, it is a requirement that the press must not be subject to anyweight loads and must be supported on mechanical stops.此外， 压机不受任何的重量负荷在压机停止时压机必须被支撑起来Furthermore, all pumps must be switched off and prevented from restarting(see "2 Switching off for mechanical and electrical work" in the“Maintenance electrical system” chapter).These precautions are also necessary when tightening pipelines in orderto seal leaks. 所有的油泵必须被关闭防止油泵重新启动 在拧紧管道密封泄露时这些预防措施也是必要的 2.2 Depressurizing the pressure vessel 给压力容器减压Switching off the electrical power supply causes the pressure relief valveson the pressure tank to be switched to the tank. This automaticallydepressurizes the pressure tank oil sided.Work must only be carried out on the device once the container has beendepressurised. Risk of explosion.在压力容器上进行工作前必须给压力容器减压否则有爆炸的危险。

The sign shown also points out this urgently required work.下面这个标志出示了这个紧急必须要做的工作（给压力容器减压） Measure the system before continuing work to check it isdepressurized!在继续进行工作之前要测量系统是否被减压，2.2.1 Manual depressurization of plungeraccumulator 活塞储能器的手动减压Safety block of nitrogen bottles ，oil sided 液压油侧的 氮气瓶的安全阀块 1 manual release 手动减压2 accumulator safety valves 储能器的安全阀3 electrical release 自动减压Open the manual pressure relief valve slowly. `慢慢打开压力安全阀pressure vessels ：压力容器1 nitrogen bottles 氮气瓶2 pressure gauge 压力表3 charging and testing unit 充气和检测装置Depressurize the system before continuing work if pressure is detected.The system can be depressurized as follows:在连续进行工作前给系统减压， 减压的方法如下：• Turn the master switch "off". This automatically depressurises thepressure vessels关闭主开关， 此时自动给压力容器减压• Operate the vent valve until the pressure is no longer present对排气阀进行操作直到压力不存在• Open the manually operated shut-off val。