A safety-type brake-by-wire system and method for a coal mine trackless auxiliary transport robot

Abstract

The invention provides a safe brake-by-wire system and method for a trackless auxiliary transport robot in a coal mine, which belongs to the technical field of braking control for an underground trackless auxiliary transport robot in a coal mine. The safe brake-by-wire system includes an explosion-proof motor, a hydraulic pump, and a pressure gauge I , Electric pressure sensor, pressure gauge II, brake accumulator, brake-by-wire valve group, front axle brake, rear axle brake and pressure gauge III. Brake-by-wire valve group includes oil suction filter integrated on the base, check valve I, safety valve, stop valve, electronically controlled parking brake valve, check valve II, manual switching valve, manual pump, electronic proportional Service brake valves, electronic fluid level thermometers and hydraulic tanks. The invention improves the safety of the operation of the trackless auxiliary transport robot in the coal mine.

Description

technical field [0001] The invention belongs to the technical field of braking control of an underground trackless auxiliary transport robot in coal mines, and specifically discloses a safe wire-controlled braking system and method for a trackless auxiliary transport robot in coal mines. Background technique [0002] Due to the characteristics of high efficiency, multi-purpose, flexible maneuverability and advanced technology, trackless auxiliary transportation equipment in coal mines has been widely used in some foreign countries with advanced coal mining technology, such as the United States, Australia, the United Kingdom, South Africa, etc., and has developed fast. In the mid-to-late 1990s, in order to change the situation that coal mine auxiliary transportation methods lagged behind the development of mining technology, large mining areas such as Shendong, Yanzhou and Jincheng successively introduced complete sets of trackless rubber wheel transportation equipment, which...

AI Technical Summary

Problems solved by technology

[0004] The current coal mine auxiliary transportation system is still in the stage of mechanized development, and it is difficult to adapt to the needs of new technology development such as intelligent fully mechanized mining face and unmanned excavation face, which has become the development bottleneck of smart mine construction

The existing trackless auxiliary transportation system is difficult to adapt to the development needs of new technologies such as intelligent fully mechanized mining unmanned working face and unmanned excavation face. It is urgent to develop an intelligent trackless auxiliary transportation system combining the Internet of Things and automation equipment to make up for the shortcomings of intelligent mines. plate

The main problems existing in the current trackless auxiliary transportation system are: ① The demand for underground materials in coal mines is complex, the transportation workload is large, and the transportation work is highly random. The material distribution process is mainly mechanized, and the degree of automation and informationization is low. Intelligent modern logistics standards; ②Underground transportation equipment is mainly powered by explosion-proof diesel engines, the system consumes high energy consumption, and vehicle exhaust and noise pollution are serious, which seriously threatens the physical and mental health of relevant employees; ③Auxiliary transportation equipment is subject to underground explosion-proof requirements. The degree of electrification and informatization is generally low, mainly mechanical and hydraulic systems, with complicated systems, many links, dense pipelines, low reliability, and large maintenance; ④The main transportation equipment is mainly driven by drivers and dispatched manually. The degree of automation is low, and it is difficult to realize the requirement of less people

Coal mine trackless auxiliary transportation robot breaks the human-controlled braking system operated by the driver in the past, and uses wire-controlled CAN bus to remotely control the braking system. Once the braking system of the coal mine trackless auxiliary transportation robot fails, it will often cause serious coal mine accidents and property damage. loss

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