Main hoisting mechanism of metallurgy ladle crane and crane

Abstract

The invention discloses a main hoisting mechanism of a metallurgy ladle crane. When the main hoisting mechanism is used, a first motor and a second motor are started, and the phase of the first motor and the phase of the second motor are adjusted through a phase adjustment device connected between the first motor and the second motor to enable the first motor and the second motor to synchronously rotate. The torque is transmitted by the output end of the first motor to the input end of a first speed reducer and transmitted by the output end of the first speed reducer to the input end of a first main hoisting drum, and meanwhile the torque is transmitted by the output end of the second motor to the input end of a second speed reducer and transmitted by the output end of the second speed reducer to the input end of a second main hoisting drum. The output end of the first main hoisting drum is connected with the output end of the second main hoisting drum through a first shaft coupler, synchronous rotation of the first main hoisting drum and the second main hoisting drum is achieved, rigid connection bolts of the first shaft coupler are prevented from being loosened and sheared, and a drum shaft is prevented from being cracked. The invention further provides the crane which comprises the main hoisting mechanism.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a main hoisting mechanism of a metallurgical casting crane and the crane. Background technique [0002] At present, there are two sets of driving devices on the main hoisting mechanism of metallurgical casting hoisting machinery, and the two sets of driving devices are rigidly connected at the output end. When one of the driving devices fails, the other set of driving devices will Complete a working cycle. [0003] In the main hoisting system of metallurgical casting hoisting machinery, the electronic control system adopts the series resistance speed regulation method. When the speed or characteristic curves of the two motors at the high-speed end are different, and the starting and braking times of the two sets of brakes are not exactly the same. , will cause the two reel groups at the low-speed end to produce mutual restrictive reaction forces, resulting in safety...

AI Technical Summary

Problems solved by technology

[0003] In the main hoisting system of metallurgical casting hoisting machinery, the electronic control system adopts the series resistance speed regulation method. When the speed or characteristic curves of the two motors at the high-speed end are different, and the starting and braking times of the two sets of brakes are not exactly the same. , will cause the two reel groups at the low-speed end to produce mutual restrictive reaction forces, resulting in safety hazards such as loosening of the rigid connection bolts of the coupling connecting the two reels, shearing, and cracks on the reel shaft

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