Automatic locking and unlocking mechanism for rotating shaft system type devices

Abstract

The invention discloses an automatic locking and unlocking mechanism for rotating shaft system type devices. The mechanism comprises a rotating shaft, a friction disc, friction plate assemblies and driving mechanisms; the rotating shaft is arranged on a rotating device; the friction disc is fixed to the end of the rotating shaft and synchronously rotates with the rotating shaft; the friction plateassemblies are symmetrically arranged on the outer surface of the friction disc and can move in the radial direction to be attached to or leave from the friction disc; and the driving mechanism is connected with the friction disc to push the friction plate assemblies to move in the radial direction, when the rotating shaft in operation needs to be braked, the driving mechanism pushes the frictionplate assemblies to move towards the axis of the rotating shaft and brakes the friction disc to lock the rotating shaft, and when the driving mechanism pushes the friction plate assemblies to move inthe direction of being far away from the axis of the rotating shaft to enable the friction plate assemblies and the friction disc to be separated, the rotating shaft is unlocked. The automatic locking and unlocking mechanism for the rotating shaft system type devices has the characteristics that the structure is reasonable, locking is reliable, unlocking is thorough, the responding speed is high,the size is small, and the weight is low.

Description

【Technical field】 [0001] The invention relates to the technical field of braking, in particular to an automatic locking and unlocking mechanism for rotating shaft equipment. 【Background technique】 [0002] At present, various types of rotating equipment are widely used in the industrial and technological fields. The rotating equipment is provided with a rotating shaft, and the equipment rotates around the axis. In use, this type of equipment needs to brake and control the rotating shaft system according to the design and use requirements, so as to lock or unlock the rotating shaft, so that it can stop or start operation precisely according to the design or control requirements, especially aerospace equipment The small and medium-sized rotating shafting systems in China all involve the braking control of the rotating shaft, which automatically locks or unlocks the rotating shafting system through a locking mechanism. The existing locking mechanism is generally a bolt-type lo...

AI Technical Summary

Problems solved by technology

The existing locking mechanism is generally a bolt-type locking mechanism. When locking, due to the existence of pin-hole fit clearance, large overload, etc., the shafting will still rotate slightly, so it is impossible to maintain the extremely high circumferential positioning. occasion application

When unlocking, there may be a large friction between the pin shaft and the rotating shaft after experiencing a large overload, which makes it difficult to pull out the pin, or the pull out is not complete, that is, the unlocking is not complete

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