Diaphragm coupling with torque limiting device

Abstract

The invention discloses a diaphragm coupler with a torque limiting device. The diaphragm coupler comprises a connecting sleeve, a connecting shaft and two half-coupling joints, wherein one end of each half-coupling joint is provided with a first wing edge; one end of the connecting sleeve is provided with a second wing edge; one end of the connecting shaft is provided with a third wing edge; the second wing edge and the first wing edges are fixedly connected by virtue of bolts, and the third wing edge and the first wing edge are fixedly connected by virtue of bolts; the inner side of the other end of the connecting sleeve is in clearance fit with the outer side of the other end of the connecting shaft; a friction assembly mounting hole is sequentially provided with a first pressure plate, an inner tooth friction sheet, an outer tooth friction sheet, a second pressure plate, a spring and a spring seat; the side edge of one side, corresponding to the spring seat, of the cover plate abuts against the other end of the connecting sleeve; the upper ends of the inner tooth friction sheet and the outer tooth friction sheet are engaged with the connecting sleeve; and the lower ends of the inner tooth friction sheet and the outer tooth friction sheet are engaged with the connecting shaft. The diaphragm coupler is simple and compact in structure, is reasonable in design, is simple and convenient to operate, and is capable of effectively preventing mechanical damages and avoiding high shut-down loss.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a diaphragm coupling with a torque limiting device. Background technique [0002] The diaphragm coupling has the characteristics of high transmission precision and high operating speed. It is mostly used in CNC equipment and equipment with high precision requirements. However, due to operational errors or other reasons during use, the equipment is overloaded or forced to stop, which is likely to cause damage to the equipment and fracture of the coupling. [0003] In order to prevent the equipment from being damaged due to overload, there was a technical solution in the past. A set of safety pins were added to the coupling. The safety pins were installed on one half of the coupling and connected with the corresponding connecting flange. The connecting flange was on the Connect with the other half of the coupling through the diaphragm. When working, the motor dri...

AI Technical Summary

Problems solved by technology

[0004] Although this structure has the effect of overload protection, it will cause damage to the safety pin and the connecting parts. It needs to be replaced with a new safety pin before it can work normally. There is no automatic recovery function for the instant overload and timely recovery. , prone to long-term downtime

In addition, this overload protection structure does not have the function of adjusting the overload protection force according to the needs, and the safety pin will be frequently damaged due to the discomfort of the setting of the overload protection force, or the safety pin will not be damaged for a long time, and the overload protection cannot be achieved. Effect

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