Soft starting driving double-mechanical-protection device and driving system using same

Abstract

The invention relates to a soft starting driving double-mechanical-protection device and a driving system using the same. The soft starting driving double-mechanical-protection device comprises a power transmission wheel and a driving chain wheel, wherein the power transmission wheel transmits power to a friction disk through a safety pin, the friction disk makes contact with two friction plates to generate friction force, power transmission is conducted on a driving chain wheel shaft through the friction force, and the driving chain wheel drives the driving chain wheel to drive a conveying chain to operate. The soft starting driving double-mechanical-protection device is of a two-stage protecting structure, the first-stage protecting structure achieves friction plate protection, and the second-stage protecting structure achieves safety pin protection. The soft starting driving double-mechanical-protection device not only can predetermine the maximum protecting load, but also can freely regulate a friction protecting load between the minimum starting friction load and the maximum protecting load.

Description

technical field [0001] The invention relates to the field of mechanized automatic transportation, in particular to a soft-start driven double mechanical protection device and a driving system using the device. Background technique [0002] In the field of automatic mechanical transportation, the traditional drive mechanical protection devices include safety pin drive protection devices and end tooth drive protection devices. [0003] The principle of safety pin drive protection is: the device uses the transmission sprocket or gear to transmit power to the drive bushing through the safety pin, and then drives the drive shaft and drive sprocket through the drive bushing, and the drive sprocket drives the conveyor chain to run. In order to realize the conveying work of the conveying system; and use the maximum load that the small pin diameter in the middle of the safety pin can bear to ensure that the conveying system is not overloaded, that is, when the load of the conveying s...

AI Technical Summary

Problems solved by technology

[0005] The defect of the safety pin drive protection device is that when the small pin diameter size of the safety pin is selected, the load of the mechanical protection is basically determined, and the protection load cannot be adjusted. To change the protection load, the safety pin must be reselected.

Moreover, for the safety pin of the same size, due to the difference in material quality and processing quality, the protective load will also vary greatly, and it is impossible to perform more accurate pre-determined and adjusted

[0006] The defect of the end face tooth drive protection device is that the mechanical protection is realized by the tooth profile slipping and disengagement of the meshing surface. It is difficult to obtain a suitable protection load, and the maximum load protection capacity cannot be controlled, that is, the conveyor chain may be broken and the mechanical protection device cannot operate.

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