Minitype multifunctional heading machine

Abstract

The invention relates to a minitype multifunctional heading machine, comprising a rack, the lower part of which is provided with a traveling mechanism; the lower part of the front end of the rack is provided with a shovel board mechanism, the middle-lower part of the rack is provided with a conveying mechanism from front to back in an extending manner; the rack is also provided with a power mechanism and a cooling system; the front end of the rack is provided with a steering mechanism which is provided with an execution control mechanism used for installing a cutting head or a breaking hammeror a bucket; the cooling system comprises a main water tank, an auxiliary radiator, a plate-fin water radiator, a water pump, a three-way ball valve and an adaptive pipeline of the three-way ball valve and the like; and the plate-fin oil heat exchanger of cooling hydraulic oil is arranged in the main water tank. The machine is convenient for realizing the replacement of the cutting head or the breaking hammer or the bucket, adapts to multifunctional operation, can realize cutting and assist in finishing charging operation at the same time, reduces special procedure of repairing the top part and lateral side of the tunnel; when external water source supply dose not exist, the cooling water in the water tank can carry out cycle operation to reduce the temperature of hydraulic oil, thus ensuring that the machine can work normally.

Description

technical field [0001] The invention relates to a coal mine roadway excavation machine and a coal mine excavation machine, in particular to a small multifunctional roadheader capable of realizing continuous roadway excavation and coal mine comprehensive mining operations. Background technique [0002] With the continuous development of coal mines, there are more and more low-lying coal seams. At present, the height of large and medium-sized roadheaders is more than 1.5m, and the width is more than 2m. It is inconvenient to use in the mining of coal seams. Many coal mines implement blasting mining in this working condition. The risk of blasting mining is very high, and the operating efficiency seriously affects the speed of roadway excavation and comprehensive mining; the cutting head and The cutting arm is tightly connected, and it is impossible to replace multiple functional devices to complete multifunctional operations. The utilization rate of the equipment is not high, a...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of coal mines, there are more and more low-lying coal seams. At present, the height of large and medium-sized roadheaders is more than 1.5m, and the width is more than 2m. It is inconvenient to use in the mining of coal seams. Many coal mines implement blasting mining in this working condition. The risk of blasting mining is very high, and the operating efficiency seriously affects the speed of roadway excavation and comprehensive mining; the cutting head and The cutting arm is tightly connected, and it is impossible to replace multiple functional devices to complete multi-functional operations. The utilization rate of the equipment is not high, and other equipment needs to be repeatedly invested

[0003] The cantilever roadheader adopts a telescopic or non-telescopic straight arm structure, which can only be driven by the driving force of walking to push the shovel loading, which is not efficient, and manual auxiliary feeding is required for the materials at the front of the shovel and the left and right sides of the roadheader To the conveying mechanism, manual work is slow, often causing coal mines to accumulate on the front of the shovel and the left and right front sides of the machine, which cannot meet the capacity requirements of the conveying mechanism, and the equipment utilization efficiency is not enough; After cutting, there are many dangerous objects on the top surface and the left and right sides of the roadway, and the flatness is not good. It is necessary to manually complete the removal of dangerous objects and level the surface before the next step of support work

Because these auxiliary loading personnel and those who clean and level the top and side of the roadway are located in the non-supported area of ​​the roadway, the working environment is very dangerous. In addition, the manual work efficiency is low, which reduces the speed of roadway excavation and seriously affects the coal mine. Production and benefits, even endangering the safety of human life

[0004] In the initial stage of tunneling in many coal mines, there is no water supply, and most roadheaders cannot work without an external water source. Because there is no water source to cool the hydraulic oil, the oil temperature will be greatly increased, which will affect the reliability and service life of the hydraulic parts of the machine; Some machines are designed with a water tank, and copper pipes are used to weld the oil cooler in the water tank. The heat dissipation area is not enough, the cooling effect is not good, and the volume is large. When there is no external water supply, the temperature of the hydraulic oil will rise quickly, and the machine will work. very short time

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