Monorail crane lifting beam hydraulic control system and working method thereof

Abstract

The invention relates to a monorail crane lifting beam hydraulic control system and a working method thereof. The monorail crane lifting beam hydraulic control system comprises a lifting beam lifting loop, an energy accumulator manual liquid filling loop, an energy accumulator automatic liquid filling loop, a lifting beam oil supply loop, an energy accumulator pressure maintaining loop and a walking oil supply pump assembly. The energy accumulator manual liquid filling loop comprises an energy accumulator, a pneumatic pump and a manual pump, the pneumatic pump and the manual pump are both communicated with the energy accumulator, and on the basis of the hydraulic transmission control technology and the electrical control technology, the control system of the hoisting beam of the monorail crane is optimized under the related technical conditions of safe use of the hoisting beam of the explosion-proof diesel engine monorail crane, and the safety of the hoisting beam of the explosion-proof diesel engine monorail crane is improved. A hoisting beam emergency treatment function is added, so that the safety of a monorail crane hoisting beam control system is improved, the hoisting beam emergency treatment working time is saved, and the labor intensity of hoisting beam emergency treatment operators is reduced; therefore, the monorail crane locomotive is more suitable for working in complex roadways with large underground gradient, multiple curves, waved and fluctuated roads, long distance, wet and easy-to-slide road surfaces, narrow roadway sections and the like of a coal mine.

Description

technical field [0001] The invention relates to the field of monorail hoisting locomotives, in particular to the field of hoisting beams of monorail hoisting locomotives, in particular to a hydraulic control system for hoisting beams of monorail hoisting locomotives and a working method thereof. Background technique [0002] With the development of auxiliary transportation equipment technology in coal mines, the auxiliary transportation systems of explosion-proof diesel monorail cranes are more and more applied to coal mines. The hoisting beam is the core component of the supporting monorail locomotive to realize the lifting, lifting and carrying of heavy objects. It can be divided into chain hoist hoisting beam, pneumatic hoist hoisting beam, motor hoisting beam and oil cylinder hoisting beam according to the different lifting power. Because the explosion-proof diesel engine monorail crane adopts hydraulic transmission and has no carrier air source (air compressor), it affe...

AI Technical Summary

Problems solved by technology

The motor lifting beam uses normally closed hydraulic brakes to brake heavy objects, while the oil cylinder lifting beam uses hydraulic control valve groups such as balance valves or hydraulic control check valves (hydraulic locks) to brake heavy objects. During the working process of the beam, when the external power is suddenly lost (such as the failure of the monorail locomotive, the oil supply pipeline of the lifting beam control system leaks or bursts, etc.) or other emergencies, the hydraulic brake or hydraulic control valve cannot be manually released or opened. Group, the heavy objects hanging from the lifting beam are lowered to the ground by their gravity, which not only delays the normal production of the coal mine enterprise, but also may become a safety hazard if it is not handled in time

Moreover, in the traditional technology, the hoisting operation of the explosion-proof diesel engine monorail locomotive can only be carried out when the explosion-proof diesel engine is kept at idle speed. Due to the influence of the explosion-proof diesel engine idling speed, the lifting speed of the lifting beam is relatively slow, especially for large and medium-sized lifting beams. Homework time has a greater impact

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