Looseness detecting method and looseness detecting system for transmission shaft couplers of rotary furnace

Abstract

The invention discloses a looseness detecting method and a looseness detecting system for transmission shaft couplers of a rotary furnace, wherein the looseness detecting method specifically comprises the following steps: calculating braking time between different motors by a programmable controller; comparing the braking time with a preset comparison time set value; and then determining the connection state of the shaft couplers with a transmission. The invention further provides a transmission system of a rotary furnace body, which comprises an operation table, and the programmable controller, frequency converters, encoders, motors, the shaft couplers, the transmission and a transmission object which are orderly connected with the operation table, wherein the programmable controller further controls a brake through a contactor; the transmission system further comprises a conversion distributor; an input end of the conversion distributor is connected with output ends of the encoders; an output end of the conversion distributor is connected with the corresponding frequency convertor and the programmable controller, respectively; and the brake is arranged on two sides of the transmission. When a certain shaft coupler is loosened, an alarming signal for looseness of the shaft coupler is sent, thereby realizing online automatic detection of the looseness of transmission shafts.

Description

technical field [0001] The invention relates to a loose detection technology of a shaft coupling in a converter body transmission system in the iron and steel industry, and more specifically relates to a detection method and system for a coupling loose of a converter transmission. Background technique [0002] During the process of slag tapping and steel tapping of the converter body, it is necessary to continuously adjust the angle of the furnace body to cooperate with the slag ladle car or ladle trolley below to hit the slag ladle or steel ladle. However, in the process of slag tapping or steel tapping, whether the electric control transmission system or the mechanical transmission system fails, it will lead to safety accidents such as red slag or molten steel overflowing, especially when positive and negative torques are used to rotate the furnace body, if the transmission shaft is loose If it is taken off and the furnace body is in a negative torque rotation position, it...

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Problems solved by technology

[0003] In view of the problem in the prior art that the connection between the drive shaft and the transmission is loose and the transmission system of the converter body cannot be detected, the purpose of the present invention is to provide a method and system for detecting the looseness of the converter drive coupling, which can Detect the real-time status of the coupling

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