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1、In order to ensure normal teaching order, protecting students healthy growth, ensuring that national (property) is not lost, to prevent or minimize the occurrence of safety accidents, follow the prevent, rescue each other, ensure safety and reduce losses principle, according to the local conditions,
2、 make the management system. 1, the principal is the responsibility of school safety, school security under the leadership of President security work leading group. The head teacher to the leadership team is responsible for, implementation of the accountability system. 2, school monthly student know
3、ledge about safety education, education should be diversified in the form every safety education for students of classes per week should be targeted. To carry on emergency issues dealing with education in General, self-help and mutual rescue knowledge. Emergency calls (such as 110, 119, 122, 120, an
4、d so on) use common sense in education. 3, the establishment of major accident reporting system. School students report major accident within an hour of education; student run and disappearances to report; report of the accident to a written report in triplicate, a correctional centre, a police stat
5、ion, a township peoples Government shall not conceal the accident. 4 week, teachers are on duty system, establish and improve the leadership values; strengthen the education, management of teaching activities in schools to ensure normal teaching order; responsible for school safety leadership always
6、 maintained close contact and district police stations, canvassing support from the police station on school safety and help. 5, strengthening teachers moral education, establish a dedicated love, improving education quality, observe the students psychological changes at any time and take preventive
7、 measures, no corporal punishment and covert corporal punishment on students, student out of the classroom, schools may not be. 6, units or departments use student Street propaganda or participate in the celebrations, as well as participating in other social work, without approval of the Correctiona
8、l Centre, school principals consent, without organization. Without the approval of relevant departments, may organize students to participate in fire fighting, disaster relief and so on. 7, schools should educate students to obey the school rules and regulations, on time, on time home to prevent acc
9、idents. 8, school to school inspections on a regular basis, found hidden in time, and in severe cases, it is hard to eliminate immediately closed, and reported to the local peoples Government, education, and rule of law section. 9, the school should always check the internal walls, retaining walls,
10、ponds, railings, handrails, doors, Windows, staircases and a variety of sports, extracurricular activities, facilities such as fire safety, infrastructure security, unsafe facility to immediately repair and demolition to ensure that teachers and students work, learn, live venues and facilities are s
11、afe and reliable. Song Lin Xiang Liu Jia ping elementary school March 2016 song Lin Xiang Liu Jia ping primary school fire safety systems to enhance fire safety, protection of public property and the life and property safety of teachers and students, school fire safety into day-to-day management, is
12、 developing the following fire safety system. 1, strengthen fire safety education of the whole school. According to the requirements of the Fire Services Act, so that everyone has of keeping fire control safety, protecting fire control facilities, fire prevention, reports of fire课程设计说明书目录一、设计课题及主要任务
13、2二、传动方案拟定2三、电动机的选择4四、确定传动装置的总传动比和运动（动力）参数的计算5五、V带的设计7六、齿轮传动的设计9七、轴的设计12八、箱体结构设计及附件选择22九、键联接设计25十、轴承设计26十一、密封和润滑的设计27十二联轴器的设计27十三、设计小结28附：参考资料30一、设计课题及主要任务：1、 设计课题：设计用于链式传送设备或带式运输机的一级圆柱（或圆锥）齿轮减速器。2、 设计内容： 传动方案的拟定及说明（附图）； 运动学计算（电动机功率计算、传动比计算、运动及动力参数计算）； 直尺圆柱（或圆锥）齿轮传动件设计计算（选材、确定尺寸）； 轴的初步设计； 选择联轴器和轴承； 轴
14、的结构设计（附结构简图）； 选择轴承、齿轮处的配合； 编写设计计算说明书、设计小结。3、 设计任务： 减速器装配图一张：只画俯视图（A3）； 零件图一张：大圆柱（圆锥）齿轮轴（A3）或大圆柱（圆锥）齿轮（A3）； 设计计算说明书一份。4、 设计要求： 图面整洁、符合各项标准规范要求； 设计说明书要求字迹工整、清洁，插图规范。5、 设计进度计划： 总体计算和传动件参数计算； 轴与轴系零件的设计； 轴、轴承、联轴器、键的校核及草图绘制； 装配图、零件图的绘制及计算说明书的编写。6、 设计时间：2010年10月11日至2010年11月5日设计项目计算过程及说明主要结果二、传动方案拟定1、工作条件2、
15、原始数据3、方案拟定运输机连续工作，单向运转。减速器小批量生产，运输带允许速度误差为5%。原始数据运输带拉力F（N）1900运输带速度V（m/s）1.6卷筒直径D（mm）400每天工作时间h24 传动方案分析：机器一般是由原动机、传动装置和工作装置组成。传动装置是用来传递原动机的运动和动力、变换其运动形式以满足工作装置的需要，是机器的重要组成部分。传动装置是否合理将直接影响机器的工作性能、重量和成本。合理的传动方案除满足工作装置的功能外，还要求结构简单、制造方便、成本低廉、传动效率高和使用维护方便。 设计方案：本设计中原动机为电动机，工作机为皮带输送机。传动为一级直齿圆柱齿轮减速器。 采用带传动与齿轮传动的组合，即可满足传动比要求，同时由于带传动具有良好的缓冲，
