Anti-locking ratchet wheel self-locking mechanism

Abstract

The invention provides an anti-locking ratchet wheel self-locking mechanism which comprises a ratchet wheel (100), a pawl (200), a connecting rod (300), a traction electromagnet (400) and a state detection switch (500). The traction electromagnet (400) can drive the pawl (200) to move towards two sides and realize separation and locking of the pawl (200) and the ratchet wheel (100), the connectingrod (300) is made of non-magnetic metal materials, a pawl round head (210) is arranged in an arc shape, a controller module (420) is installed in the traction electromagnet (400), and the traction electromagnet (400) adopts direct current and other measures, so that the pawl (200) and the ratchet wheel (100) are effectively prevented from being locked, operation efficiency is improved, productioncost is reduced, maintenance cost is reduced, and unsafe factors caused by maintenance are reduced.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to an anti-locking ratchet self-locking mechanism. Background technique [0002] Today, when industrial control is highly automated, there have been cases where unmanned control is used for the hoisting of steel coils. When unmanned cranes are used for automatic hoisting, the positioning accuracy of automated cranes is much higher than that of manual positioning. At the same time, in order to improve the safety factor, many auxiliary detection switches and self-locking mechanisms need to be added to the spreader, which can effectively prevent the steel coil spreader from opening the clamp arm under abnormal conditions due to special reasons, causing accidents caused by the fall of the steel coil. During use, sometimes the ratchet self-locking mechanism is locked. In this state, the self-locking mechanism needs to be manually opened quickly for the next step. However, due ...

AI Technical Summary

Problems solved by technology

However, due to the matching angle and installation position of the ratchet and pawl, the original ratchet self-locking mechanism often makes manual opening very difficult, which affects the production progress of the entire production line, and in severe cases causes the production line to stop production, such as Figure 5 As shown, it is a schematic diagram of the ratchet self-locking structure. After the pawl 200 and the ratchet 100 contact and self-lock, the pointed surface of the pawl 200 is in close contact with the gear root 120 to self-lock, and the pawl 200 and the ratchet 100 are in a self-locking state. When the ratchet When 100 needs to rotate, the pawl 200 needs to be separated from the ratchet 100 by rotating and overcoming the self-locking resistance. The pawl tip 210 of the pawl 200 is deeply embedded in the gear root 120. Manual maintenance is urgently needed to separate the pawl 200 from the ratchet 100

In the process of frequently dealing with the abnormal self-locking of the ratchet 100, workers operate on the spreader for a long time, which poses a great safety hazard

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