Driving system of scraper conveyor and control method

Abstract

The invention discloses a driving system of a scraper conveyor and a control method. The driving system comprises a machine head chain wheel, a machine tail chain wheel, a machine head chain wheel driving mechanism and a machine tail chain wheel driving mechanism. The machine head chain wheel driving mechanism is a first hydraulic motor, and the machine tail chain wheel driving mechanism is a second hydraulic motor. A hydraulic system for driving the first hydraulic motor and a hydraulic system for driving the second hydraulic motor include identical hydraulic components and each comprise a three-position four-way electromagnetic directional valve, a two-position two-way electromagnetic directional valve, a two-position three-way electromagnetic directional valve, an energy accumulator andan oil supplementing valve group. The driving system is applicable to rapid starting and stopping of a scraper conveyor under the heavy-load condition, meanwhile, the chain tension can be adjusted inreal time, the problem of power unbalance in a dual-driving system is solved, and the driving system is simple in structure and long in service life.

Description

Technical field [0001] The invention relates to the technical field of underground material transportation, in particular to a drive system and a control method of a scraper conveyor. Background technique [0002] Scraper conveyor is a kind of continuous transportation machinery, which has the advantages of large transportation capacity, wide adaptation to the environment and simple maintenance. It is widely used in coal mines in fully mechanized mining faces. The traction drive system of the traditional scraper conveyor is mainly composed of a drive motor, a reducer, a soft starter, a sprocket and other devices. The drive mechanism composed of the drive motor and the reducer is used to drive the sprocket to rotate, and the soft starter is used to start or Turn off the drive motor. [0003] However, the above-mentioned scraper conveyor traction drive system has the following defects: 1. The high-power scraper conveyor usually uses two drive systems to drive the head sprocket and t...

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Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a driving system and control method for a scraper conveyor, which can be applied to the rapid start and stop of the scraper conveyor under heavy load conditions, and at the same time can adjust the chain tension in real time to solve the problem of double drive. The problem of power imbalance in the system, and the structure is simple and the service life is long

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