机械 中英

液压系统安装和调试
Installation and commissioning of hydraulic system
1. 安装
1. Installation
液压站在安装前应首先作地基平整处理，并打好地脚螺丝的预埋坑。
Prior to installation of the hydraulic station, firstly level the foundation, and dig the embedded pits for the foundation bolts.
2．调试
2. Commissioning
1）首先加入液压工作油,一般地区,采用YB-46抗磨液压油,在高温地区,应加入YB-N80抗磨液压油.在温差较大的地区,则选择粘温系数良好的航空液压油10号或12号。
1) Fill the hydraulic operating oil, in ordinary regions, adopt YB-46 anti-wear hydraulic oil; and in high temperature regions, apply YB-N80 anti-wear hydraulic oil. In those regions with a high temperature difference, adopt the aviation hydraulic oil #10 or #12 which has a good viscosity-temperature coefficient.
2）检查液压系统各部，确认安装合理无误。www.en-ch.com
2) Inspect all parts of the hydraulic system to confirm the installation is proper and errorless.
3）向油箱灌油，当油液充满液压泵后，用手转动联轴节，直至泵的出油口出油并不见气泡时为止。有泄油口的泵，要向泵壳体中灌满油。
3) Fill oil into the oil tank, when the hydraulic pump is full of oil fluid, manually turn the coupling, till there is no bubble in the oil outlet. If the pump is fitted with oil drain port, firstly fill oil in the pump case.
4）接通电源、点动液压泵电机，检查电源连线是否正确。延长启动时间，检查空运转有无异常。
4) Switch on the power supply, start up the motor for hydraulic pump in the inching mode, and inspect if the power wire is connected correctly. Extend the startup time to check if there is abnormal condition under zero load.
5）主油缸排气：当机床长时间不使用，主油缸内液压油泄回油池，使系统内积聚空气使机床产生爬行，若重新启用，可将放气开关打开（如图所示），主油缸上下两腔的空气通过放气开关，排出系统。经过几个循环后，彻底排尽。注意：在进入拉削时一定要关闭放气开关。
5) Exhausting of main oil cylinder: if the machine tool is not in service for a long term, drain the hydraulic oil in the main cylinder into the oil basin, so as to make the accumulated air in the system force the machine tool to creep; when the machine is put into service again, open the air escape cock (as shown in the following figure), the air in both upper and lower chambers of the cylinder will be discharged out of the system through the air escape cock. After several cycles, the air will be emptied. Notice: When broaching, make sure that the air escape cock is closed.
6）液压系统生产运行过程中，要注意油质的变化状况，要定期取样化验，若发现油质不符合要求，要进行净化处理或更换新油液。
6) During the running of the hydraulic system, pay attention to the condition of oil quality, periodically take a sample to test, in case any defective oil is found, take a cleaning treatment or replace with new oil.