{"id":20435,"date":"2021-03-08T07:49:50","date_gmt":"2021-03-08T07:49:50","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=20435"},"modified":"2021-03-08T07:49:50","modified_gmt":"2021-03-08T07:49:50","slug":"what-are-the-malfunction-forms-of-mechanical-parts","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/de\/what-are-the-malfunction-forms-of-mechanical-parts\/","title":{"rendered":"Was sind die St\u00f6rungsformen mechanischer Teile?"},"content":{"rendered":"
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The following few aspects are closly connected with the malfunction of mechanical parts:<\/p>\n\n\n\n
\uff081\uff09 Integral fracture (2) excessive residual deformation (3) surface malfunction\u00a0of parts (4) malfunction\u00a0caused by malfunction\u00a0of normal working conditions<\/p>\n\n\n\n
1. Why thread connection often needs anti loosing?<\/h2>\n\n\n\n
A: generally, the threaded connection can meet the self-locking condition without automatic loosening, but under vibration or impact load, or when the temperature changes greatly, the connecting nut may gradually loosen. The main reason for thread looseness is the relative rotation between thread pairs. Therefore, in actual design, anti looseness measures must be taken. The commonly used measures are as follows: 1. Friction anti looseness – to maintain the friction between thread pairs to prevent looseness, such as adding spring washer and pushing double nuts; 2. Mechanical anti looseness – to use stop parts to ensure anti looseness, which is often used It is groove nut and split pin, etc.; 3. Destroy thread pair anti loosing – destroy and change thread pair relationship, such as impact method.<\/p>\n\n\n\n
2.What is the purpose of tightening in threaded connection? <\/h2>\n\n\n\n
A: the purpose of tightening in the threaded connection is to make the bolt produce preload, and the purpose of preloading is to enhance the reliability and tightness of the connection, so as to prevent the gap or relative sliding between the connected parts after loading. The effective way to control the tightening force is to measure the torque wrench or constant torque wrench, when the required torque is reached, the tightening can be done; or the method of measuring the bolt elongation is used to control the preload.<\/p>\n\n\n\n
3.What is the difference between elastic sliding and slipping of belt drive? <\/h2>\n\n\n\n