Bi-directional torque overload protector

Abstract

The invention discloses a bi-directional torque overload protector which can realize bidirectional protection during shaft driving. The bi-directional torque overload protector consists of an outer ring, an inner ring, a roller, a retaining frame, a baffle, a serpentine spring, a pad, wave-shaped springs and an end cover, wherein an outer ring roller groove, an end cover groove and an outer key groove are formed in the outer ring; an baffle groove, a baffle opening, an inner ring roller groove, a wave-shaped roller groove, wave-shaped spring grooves, an inner key groove and an inner ring end cover groove are formed in the inner ring; a roller hole and a baffle hole are formed in the retaining frame; the baffle consists of a baffle head and baffle lugs; the outer ring is connected with a driven shaft; the inner ring is connected with a drive shaft; after the drive shaft is started, the inner ring starts to rotate and the outer ring is relatively static; the roller starts to roll and is close to the nearest wave-shaped spring; the outer surface of the wave-shaped spring protrudes out from the surface of the inner ring roller groove, so that the roller can be clamped between the outer ring and the wave-shaped spring, and the inner ring drives the outer ring to rotate synchronously to realize shaft drive; when the driven shaft is hampered or even blocked, the roller can run over the wave-shaped spring; at the moment, the retaining frame is blocked by the baffle, moreover, the roller is prevented from getting close to the next wave-shaped spring, so that the retaining frame cannot be clamped again and can rotate. Therefore, an overload protection effect is achieved.

Description

Technical field: [0001] The invention relates to a mechanical bidirectional torque overload protector, which belongs to the field of machinery. technical background: [0002] At present, the existing two-way overload protectors include ball type, friction type, hydraulic type, pneumatic type, electromagnetic type and so on. These protectors have their own strengths and have a wide range of applications. However, they all have the problems of relatively complex structure, large assembly space, and high manufacturing, maintenance and use costs. Therefore, the present invention provides a bidirectional torque overload protector with relatively simple structure, small volume, small assembly space, low manufacturing and use costs, and maintenance-free. Invention content: [0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the background technology and provide a mechanical bidirectional torque overload protector, which has a ...

AI Technical Summary

Problems solved by technology

However, there are problems of relatively complex structure, large assembly space, and high manufacturing, maintenance and use costs.

Images