Cross side dumping type variable-frequency drive conveying device for coal mines

Abstract

The invention relates to a cross side dumping type variable-frequency drive conveying device for coal mines. The cross side dumping type variable-frequency drive conveying device for the coal mines comprises a scraper conveyor and a scraper loader. The scraper conveyor comprises a conveyor head, a conveyor body and an extensible conveyor tail. The extensible conveyor tail is composed of a fixed frame and a movable frame. A first extensible conveyor tail deflection slot, a second extensible conveyor tail deflection slot and a third extensible conveyor tail deflection slot are formed between the conveyor body and the movable frame. An extensible conveyor tail push unit I and an extensible conveyor tail push unit II are arranged on the movable frame on one side of the first extensible conveyor tail deflection slot and on one side of the second extensible conveyor tail deflection slot respectively. The cross side dumping type variable-frequency drive conveying device for the coal mines has the advantages that energy conservation and emission reduction are realized, and requirements of a motor for high starting torque and soft starting can be met; since the conveying device can be started at low speed and high torque, collapsing force on a chain is reduced, post maintenance cost is lowered, the longest service life is realized, and the high requirement on coal mining mechanization is met.

Description

technical field [0001] The invention relates to a scraper conveyor, in particular to a cross side unloading type frequency conversion drive conveying device for coal mines. Background technique [0002] The cross-side unloading scraper conveyor for coal mines is mainly suitable for the mining of gently inclined and medium-thick coal seams in coal mines. It is required to have the characteristics of high strength, long life, and high reliability, and can achieve high-yield and efficient comprehensive mechanized coal mining. The current national policy requires mining equipment to achieve energy saving and emission reduction. At the same time, if the equipment is to achieve mechanized coal mining, it must have a large torque and soft start. However, the drive systems of the existing domestic high-power scraper conveyors for mining It is a combination of motor, reducer and hydraulic coupling. This driving method can meet the requirements of soft start of the motor and large st...

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Problems solved by technology

The current national policy requires mining equipment to achieve energy saving and emission reduction. At the same time, if the equipment is to achieve mechanized coal mining, it must have a large torque and soft start. However, the drive systems of the existing domestic high-power scraper conveyors for mining It adopts a combination of motor, reducer and hydraulic coupling. This driving method can meet the requirements of soft start of the motor and large starting torque, but it does not have significant energy-saving features.

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