The first is to use two identical nuts on the same bolt, in the middle of the two nuts an extra torque, to promote the bolt connection.
The second is a specialized lock nut, which must be applied in conjunction with a lock washer. The special type of lock nut is not a hex nut, but a round nut. There are 3, 4, 6 or 8 vacancies in the center of the nut (depending on the size of the nut and the manufacturer’s series of products). These vacancies are not only the force point of the special tightening tool, but also the clamping place of the lock washer interface.
The third is to drill a threaded hole around the inner hole surface of the nut to the thread surface of the inner hole (generally 2 holes, in the outer round surface into 90 throughout), for screwing in the small diameter countersunk bolt, the purpose is to increase a radial azimuthal force to the thread, to avoid the lock nut loose. The lock nut of good quality sold in the market is inlaid with a small piece of copper of the same thread as the lock nut on the inner round face to prevent the tangential top screw from immediately touching the lock thread and destroying the latter kind. This kind of lock nut is gradually used in the clamping place of the bearing end cover of the rotating fitness parts, such as the anti-loosening of the rolling bearing at the mounting end of the ball screw.
The fourth kind of lock nut is composed of two parts, each part is overlapping camshaft, because the internal structure wedge design scheme slope Angle exceeds the nut Angle of the bolt, this component will firmly bite into a whole, when there is vibration, the protruding parts of the lock nut move with each other, resulting in rising support force, so as to achieve good anti-lock practical effect.
The fifth is the construction of anti-loose, according to the realization of the design scheme improvement in the thread structure, does not rely on other external reasons to get a kind of existing clamping effect, so its scope of application is more common than the above several types of ways, the demand for natural environment is also very low. There are many types of lock nuts, such as polyester nuts and flange nuts. In a word, these types of lock nuts are designed to prevent loose. Twist the nut onto the screw, screw, bolt, etc., so that it is not easy to loose. They can be automatically joined together to achieve a very high level of robustness and reliability.
Post time: Apr-07-2023
