Vibration reduction device for diaphragm coupling and vibration reduction method of vibration reduction device

Abstract

A vibration reduction device for a diaphragm coupling comprises an intermediate shaft, wherein the intermediate shaft is of a sleeve-shaped structure with two ends large in diameter and the middle small in diameter, the two ends are sequentially connected with an intermediate flange and an outer flange respectively, the intermediate flange and the intermediate shaft are connected through a plurality of bolts III, a plurality of dynamic vibration absorption components are evenly distributed in a large-diameter hole of the intermediate shaft in the circumferential direction, a plurality of diaphragm sets are arranged in the outer flange, the diaphragm sets are connected with the intermediate flange and the outer flange through a plurality of bolts I, each diaphragm set is formed by alternately arranging and installing a plurality of diaphragms and a plurality of vibration reduction elements in parallel, a flange I is mounted in an inner hole of each diaphragm set in a sleeved mode, eachflange I is step-shaped, a stop block is arranged at the inner side of each diaphragm set, and each flange I, the corresponding diaphragm set and the corresponding stop block are connected through a plurality of bolts II. Due to the arrangement of the diaphragm sets, the resonance bandwidth is effectively increased; the dynamic vibration absorption devices realize both axial vibration absorption and radial vibration absorption and can bear large loads, so that the vibration reduction effect is enhanced, the service life of the diaphragm coupling is greatly prolonged, and the requirements for power transmission and structural strength of the coupling are met.

Description

technical field [0001] The invention relates to a vibration damping device for a diaphragm coupling, in particular to a vibration damping structure and a vibration damping method for a diaphragm coupling, belonging to the field of vibration reduction and noise reduction for shaft couplings. Background technique [0002] With the rapid development of vibration reduction technology, higher requirements are put forward for the damping structure. How to reduce the vibration of mechanical equipment and systems, improve the life of the system and eliminate noise pollution has received more attention. Highly elastic couplings for ships have high-efficiency response characteristics while transmitting torque, and have a good vibration isolation effect on the power transmission system. Diaphragm flexible coupling is mainly composed of diaphragm, driving shaft and driven shaft shaft end, intermediate shaft with flange and connecting bolts, mainly plays the role of torque transmission, ...

AI Technical Summary

Problems solved by technology

[0004] The patent with the application number 201910519755.5 discloses a diaphragm coupling of triple diaphragm group, which connects the middle diaphragm group and the self-aligning bearing together, and utilizes the self-aligning performance of the self-aligning ball bearing to reduce the loss due to additional displacement. The additional load acting on the diaphragm can compensate for large angular displacement, axial displacement, and radial displacement, but the direct contact between the diaphragms in the diaphragm group of the diaphragm coupling will inevitably increase the diaphragm The wear and fatigue of the diaphragm, and the three sets of diaphragms only limit the random vibration in any direction and ease the impact vibration, but they cannot achieve a good vibration damping effect, and the vibration isolation characteristics of the diaphragm coupling are also used to evaluate the coupling An important parameter of performance, this type of diaphragm coupling has no significant improvement in vibration reduction and still needs continuous improvement

Images