Round nut locking structure

Abstract

The invention relates to a round nut locking structure. The round nut locking structure comprises a round nut, a stop plate, a retainer ring and a wave spring; the round nut is mounted on a shaft; an inner pawl on the stop plate is clamped in a groove formed in an end of the shaft, while an outer pawl is clamped in a groove of an inner hole of the round nut; the retainer ring is mounted in the groove of the inner hole of the round nut; the wave spring is arranged between the stop plate and the retainer ring. The round nut locking structure is improved on the basis of a previous structure, and the structure is simple and an obvious effect can be achieved; besides, the round nut locking structure is capable of preventing the damage of the stop plate, the retainer ring and the like under abnormal loads caused by clearance play due to heavy vibrations during working.

Description

technical field [0001] The invention relates to an anti-loosening structure, in particular to a round nut anti-loosening structure in mechanical components. Background technique [0002] Round nuts are threaded connectors widely used in mechanical transmission. They are used to lock the shaft end of the rotating shaft. In order to prevent the threads from loosening during work, they are generally designed with an anti-loosening structure. figure 1 Shown is one of the more common round nut locking structures, which is composed of a round nut, a stop plate, and a retaining ring. The stop plate is designed as an inner and outer claw structure, and the inner claw is stuck in the groove designed on the shaft end. The inner and outer claws are stuck in the grooves on the end face of the round nut to prevent loosening and stop the thread. The retaining ring is installed in the T-shaped groove on the inner hole of the round nut, which plays the role of axially fixing the stop plate...

AI Technical Summary

Problems solved by technology

The retaining ring is installed in the T-shaped groove on the inner hole of the round nut, which plays the role of axially fixing the stop plate; in the traditional design, after the retaining ring is installed, there will be a certain gap between the retaining ring and the round nut. "H" is marked in the figure, when the rotation speed of the rotating shaft is high and the work is not stable, the vibration of the rotating shaft will increase, and the stop plate will have abnormal contact with the round nut and the retaining ring under the action of large vibration, and it will also Caused the force on the retaining ring. During the main reduction bench test of a certain type of machine, the stop plate and the round nut came out, deformed, and cracked due to abnormal vibration.

Images