編輯此資訊 : The role and maintenance matters of double ended bolt

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Double ended bolts, also known as double-headed screws, double ended studs. The double ended bolts are threaded in the middle, and the screws on both ends are thick and thin. So what is the specific role of the double ended bolt? How to maintain the double ended bolt? Let’s take a look at it together. The role of the double ended bolt 　　1. For the main body is a large-scale equipment, accessories that need to be installed, such as: sight glass, mechanical seal seat, reduction frame, etc. At this time, the double ended bolt is used, one end is screwed Into the main body, and the other end is equipped with a nut after the attachment is installed. Since the attachment needs to be disassembled frequently, the thread will wear faster, and it is very convenient to replace the double ended bolt. 　　2. used to connect thick plates and inconvenient to use hexagonal bolts to connect, such as: concrete roof trusses, roof beam suspension monorail beam suspension parts. 　　3. When the thickness of the connecting body is large and the bolt length is very long, the double ended bolt will be used at this time. Maintenance of double ended bolts 　　The double ended bolts are threaded at both ends with no threads in the middle and a polished rod in the middle. double ended bolts are used on large equipment such as deceleration frames. In actual use, the external load will have vibration and temperature, and The friction will become smaller. The thread connection will be slack and invalid after a long time., it is necessary to maintain the double ended bolts during normal times. 　　In the actual work, the external load has vibration, change, high temperature creep of the material, etc., which will reduce the friction force. The positive pressure in the thread pair disappears at a certain moment And the friction force is zero, thus loosening the thread connection. After repeated action, the threaded joint will relax and fail. after it is necessary to prevent loosening, otherwise it will affect normal work and cause an accident. 　　The double ended bolt will have problems under the action of long-term mechanical friction. When the problem occurs, the engine oil sump should be disassembled, check the engine bushing usage, check whether the gap between the bearing bushes is too large, if the It is also necessary to replace the connecting rod bolts when replacing the double ended bolts. 　　During each maintenance, the newly replaced double ended bolts and other newly adapted accessories shall be inspected. The inspection shall focus on the head and guide parts of the double ended bolts, and strict inspection of each part of the thread is required. Be dents, and the shape of the double ended bolts of the double ended bolts should be checked for changes. There is no abnormality in the pitch. If an abnormal condition is found, it can no longer be used. 　　The above is about the role of the double ended bolt and maintenance matters. I hope everyone will understand the role and maintenance of the double ended bolt and it will help everyone. https://www.starwdh.com/

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