Speed variator type double system transmission gear for blast furnace bellless furnace top distributor

Abstract

The invention relates to a gearbox-type dual system transmission device for a feed distributor of a bell-less top of a blastfurnace. The gearbox-type dual system transmission device comprises a main rotary motor, a main rotary reduction gear pair, a main rotary shaft, a main rotary afferent gear, single tilting motor, a single tilting reduction gear pair, a tilting rotary shaft, a tilting rotary afferent gear, a stepless gearbox, three synchronisers, three shifting forks and a shifting fork controller. The device can realize the transmission in two states: the first state: through the drive ofthe main rotary motor, a main rotary pivoted loop can realize the main rotation; simultaneously, through the stepless gearbox, the tilting rotary shaft realizes differential speed rotation; and the second state: the drive to the feed distributor is realized through the rotation of the main rotary motor and the single tilting motor. The gearbox-type dual system transmission device has the characteristics of simple transmission mechanism, high reliability, good operating synchronicity and long service life, determines the variation ratio of the gearbox according to the load size and achieves the aim of energy conservation; and the gearbox-type dual system transmission device can adopt the gearbox and the synchronisers which are widely used in automobiles and has small difficulty in manufacturing the whole device.

Description

technical field [0001] The invention relates to a transmission-type double-system transmission device for a bellless top distributor of a blast furnace, belonging to the technical field of metallurgical equipment. Background technique [0002] Iron and steel metallurgy technology and industry are the basis for a country to achieve industrialization and enter a developed society, and it is also an important symbol of a country's industrialization level. At the same time, it is also an industry that has an important impact on the country's environment and energy status. Therefore, its development status will be It has the most direct impact on the quality of life of the country and people. Blast furnace top material distribution device is an important equipment of iron and steel metallurgy technology; in the process of smelting pig iron in blast furnace, it is necessary to continuously add furnace charge to the furnace under the condition of being isolated from the atmosphere,...

AI Technical Summary

Problems solved by technology

[0004] (1) The dual-motor system based on the planetary gear, the main rotation and the tilting motion are superimposed by the planetary gear, which has the characteristics of stable operation, uniform force on the slewing ring, and relatively high reliability; the mechanism is relatively complicated, and the planetary The gear bears a lot of force and wears seriously, so it is necessary to use dual motors for linkage. The driving power required for tilting is relatively large, and the energy consumption is relatively large.

[0005] (2) The differential-based dual-motor system uses dual motors to drive the main rotating slewing ring and the tilting slewing ring respectively, and the tilting is realized through the differential of the two slewing rings, which has high requirements for differential control and must be used Double motors are used for linkage, the driving power required for tilting is relatively large, and the energy consumption is relatively large

[0006] (3) For the lever-based slewing ring lifting system, the lifting movement of the tilting slewing ring can be driven by a motor or a hydraulic system, but a synchronization device or a control system is required to coordinate the lifting movement of the lowering slewing ring; Due to the limitation of vertical space, the stroke of the vertical movement of the lever is very limited, so the force on the lever is relatively large, the contact wear between the lever and the slewing ring is serious, and the operation is not stable; a dual power (dual motor) system is required for operation. The driving power is larger, and the energy consumption is larger

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