Fastener bolted connection, how to make the washer play a better value
Release time:
2023-05-18 14:48
Source:
Bolt as a common connection parts, commonly used in mechanical equipment, cars, trains and building structures, according to different requirements to choose the appropriate type of bolt. The bolt connection is also a basic structural form of fastener connection, in which the anti-loosening effect is a part that can not be ignored. The following analysis of the fastener bolt connection, how to let the washer play a better value, it can be seen that the anti-loosening effect of many bolt connections is to adopt the washer to improve the anti-loosening effect.
We all know that during the use of the equipment, the bolts will loose due to vibration, high and low load changes and long-term working state. In many cases, in order to prevent the bolts from loosening, we will add washers to the bolts for more fastening.
In daily use, in order to prevent bolt loosening, bolt loosening measures can be roughly divided into the following two aspects: physical device loosening and process method loosening.
Anti-loosening measures for physical devices:
(1) anti-loosening device with additional friction force
(2) mechanical anti-loosening device
(3) adhesive anti-loosening device
Process method Anti-loosening measures:
(1) Fixed torque tool to prevent loose
(2) Training and training anti-loose
(3) parts quality control anti-loose
This time, the anti-loosening device of the additional friction of the anti-loosening measures of the physical device is analyzed:
The anti-loosening device with additional friction force has three main structures: double nut tightening structure, spring washer tightening structure and self-locking nut tightening structure. Double nut tightening structure: first tighten the lower nut and then tighten the upper nut. After the two nuts are tightened on the top, the upper and lower nuts are opposite to the contact surface of the bolt thread, so that the screw thread is always subjected to additional pressure and friction force. When the working load changes, the friction force still exists. Its structure is simple, suitable for smooth, low speed and heavy load fixed device connection.
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Fastener bolted connection, how to make the washer play a better value
Bolt as a common connection parts, commonly used in mechanical equipment, cars, trains and building structures, according to different requirements to choose the appropriate type of bolt.
What are the materials of U-bolt
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