问题 问答题 简答题

轧制设备的维护、保养要求?

答案

参考答案:

1)芯杆输送部分链条松紧调整合适、润滑脂充分,定期检查芯杆输送轮是否磨损,并及时更换,保证芯杆输送轮强劲有力;

2)定期检查芯杆是否弯曲,接头是否松动,并及时矫直或更换芯杆,更换接头;

3)每月检查二次喂进机构是否正常,发热是否严重,转动部位是否灵活,轴承是否需要更换;

4)检查喂料小车运动是否平稳,车轮转动是否灵活,并定期加润滑脂(二号锂基润滑脂);

5)检查主辅驱动机构电机联轴器磨损情况,及万向联轴节润滑是否良好,定期加注润滑脂(二号锂基润滑脂);

6)检查飞剪、成卷部分转动机构是否灵活,飞剪刀片磨损情况是否严重,升降机构是否正常;

7)检查液压系统油泵,运行声音是否正常,油位、油温、油压是否合格,及时过滤添加或更换液压油;

8)检查气动系统气动元件是否漏气,清理气动三联体;

9)检查冷却、滑润系统管网,治理漏水、漏油,检查阀门接头,更换密封圈,检查更换泵叶轮、轴、轴承、联轴节、梅花垫等,检查更换过滤芯,检查添加或更换润滑油;

10)每月清扫电气柜、箱,检查电器线路,修复更换损坏的电线、蛇皮管。检查电机、添加油脂、检查是否需要更换碳刷、油毡、密封件等。

阅读理解

根据材料内容,回答问题。

     Jamie Feilden has been interested in farms since he was a little child. Now he is planning to pass on his

love for farms to students.

     28-year-old Mr. Feilden is going to set up a charity (慈善机构). He plans to raise money for students

from city schools who would like to visit Jamie's Farm and experience country life.

Mr. Feilden first got the idea for his project when he started working for the Teach First Project after

graduating from university in Edinburgh.

     "When I worked in a school in Croydon, I realized the students there had little experience of farm life.

Many of the students in the school had never been out of Croydon before. Of course, they had never

seen farm animals,"said Mr. Feilden. "So I opened up a small farm in the school. It was a real success."

Mr. Feilden once took a group of students back to his hometown. There the students saw many animals.

They had lots of fun spending time in the countryside. Since then he has done more work on his own farm

project. He even started working for it full time.

     Mr. Feilden said, "Living and working in the countryside can give children a chance to eat food

produced on the farm. They can also do some gardening, cooking and be with animals there."

Now Jamie's Farm needs volunteers. If you are interested in donating your money or time, you can get in

touch with Jamie by e-mailing him.

1. When did Jamie Feilden start to be interested in farms?

    ____________________________________________

2. Why did Jamie Feilden want to set up a farm in the school?

    ____________________________________________

3. Why is Jamie Feilden going to set up a charity?

    ____________________________________________

4. What can students do on Jamie's Farm besides eating food produced on the farm?

    ____________________________________________

5. If people want to do something for Jamie's Farm, how can they contact (联系) with Jamie?

    ____________________________________________

单项选择题