disassembly机械拆卸.ppt

1、MECHANICAL DISASSEMBLY 机械拆卸 WHY DO WE HAVE DISASSEMBLYIN THE MECHANICS TRAINING?为何我们在技工培训中会有拆卸的内容 The mechanic is regularly involved with disassembly activities in his normal activities.技工在其日常的工作活动中，时常会牵涉到拆卸工作。 Because disassembly requires a different approach and way of thinking, plus other specifi

2、c disassembly tools and arrangements.因为拆卸要求的是一种不同的工作途径和思考方式，加上另外的特定拆卸工具和配备 。PURPOSE OF THE DISASSEMBLY拆卸的目的The purpose of disassembly is to disconnect assembled parts, such that we again have separate subassemblies or loose parts.拆卸的目的就是要拆下装配好的零部件，使我们重新获得分开的组件或零散的零件。REASONS FOR DISASSEMBLY CAN BE:拆卸

3、的原因会有：1.Preventive maintenance, 预防性维修保养 ，to prevent faults. 为的是防止故障。 For example, a periodic check on the functioning or wear, or to replace parts according to plan.例如：定期检查机器的运行和磨损情况，或根据计划来更换 零件。2. Corrective maintenance, 排除故障的 维 修，to detect faults and correct them. 为 的是 查 出故障并排除它 们 。For example, to

4、 repair and/or replace parts. 例如：修理和 /或更换零件。 3. Disassembly with new building work 为新的工地工程而拆卸 ，to facilitate the transport of a machine or a piece of equipment. 以方便机器和设备的运输。Here, the machine or equipment will be partly disassembled with the purpose of building it up again somewhere else in the build

5、ing.这里，机器或设备会被部分拆卸下来，为的是在工地的其它地方再组装 起来。WORKING METHOD FOR DISASSEMBLYOF MACHINE OR EQUIPMENT拆卸机器和设备的工作法 The machine or equipment can be divided into subassemblies and parts.机器或设备可以被分成为组件和零件。 MACHINE or EQUIPMENT机器或设备Subassembly 组件 1Subassembly 组件 2 etc. Manufactured part 1制作零件 1Manufactured part 2 制

6、作零件 2 etc.Standard article 1标准件 1Standard article 2 etc.标准件 2 Boughtin part 1采购零件 1Boughtin part 2 etc.采购零件 2 DISASSEMBLY STEPS CAN BE DIVIDED INTO:拆卸步骤可被分为 :preparatory and 准备 步骤executive steps 实施 步骤 PREPARATORY DISASSEMBLY STEPS ARE:拆卸的准备步骤是 ：1.Reading assembly drawings, disassembly instructions e

7、tc.阅读装配图纸、拆卸说明等。 2.Analysis and determination of the operation and function of the object to be disassembled.分析和确定如何操作以及所拆物件的功能。 3.If necessary, the detection of the cause of the fault.如有需要， 查 出故障的原因。 4.Definition of the disassembly sequence and how the parts to be disassembled must be detached.明确拆卸

8、 顺 序以及所拆部件必 须 如何拆下。 5.Checking which tools, devices and equipment are needed. 检查 需要哪些工具、 设备 和装置。 6.Taking care that the means are present to mark the disassembled parts in sequence of disassembly, if required.如有要求，留意按拆卸顺序在所拆部件上作记号的做法。 7.Taking care that the means are present to clean the parts.留意清 洁

9、 零部件的方法。 8. Making sketches. 画 出草 图 。 9. Arranging the working area. 安排好工作 场 地。 10. Taking safety measures. 做好安全措施。 EXECUTIVE DISASSEMBLY STEPS ARE:拆卸的实施步骤是： 1.Disassembly to subassemblies and parts. 拆卸成组件和零件。 2.Marking, scribing parts. 在零部件上作 记 号、划 线 。 3.Cleaning parts. 清 洁 零部件。 4.Inspection of parts. 检查零部件。 拆卸的原则 机械设备拆卸时，应该按照与装配相反的顺序进行，一般从外部拆至内部，从上部拆至下部，先拆成部件或组件，再拆成零件的原则进行。