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What are the Reasons that Affect the Performance of the Roadheader?

Mar. 19, 2021

As a Mining Machine Roadheader Exporter, share it with you.

The performance of the roadheader is the key to determining rapid tunneling. Based on the existing results, a comprehensive analysis of the main factors affecting the performance of the roadheader has been carried out.

Roadheader For Mining

Roadheader For Mining

Analysis from the design, processing and manufacturing of the roadheader

1. The stability of the whole machine operation. The operational stability of the roadheader has a great influence on its work efficiency and work safety. Compared with the horizontal shaft type roadheader, the vertical shaft type roadheader needs to increase its weight by about 20% to achieve the same stability. During the operation of the roadheader, instability such as rollover, backover, rotation along the vertical axis, and track slippage may occur. Increasing the weight of the machine body can improve the stability of the roadheader operation, but on the one hand, it will increase the cost, and on the other hand, the roadheader is prone to sinking in a humid and low-lying environment. According to statistics, during the work process, the downtime caused by the machine's instability in space is up to 26%, and the downtime caused by the breakdown of the motor accounts for 20%. The overall stability of the roadheader directly affects the normal operation of other actuators. Therefore, enhancing the overall stability of the roadheader is of great significance for improving the mechanical performance of the roadheader, enhancing its work efficiency, and reducing failures.

2. Action coordination of the star wheel loading mechanism. The loading mechanism is one of the main working mechanisms of the roadheader, and its function is to collect and rake the coal and rock that is broken by the cutting mechanism to the intermediate conveyor. The size of the loading capacity depends on the choice of loading mechanism parameters, which directly determines the production capacity of the whole machine. Therefore, continuous improvement and perfection of the roadheader loading mechanism is a prerequisite for improving the overall performance of the roadheader.

3. Comprehensive factors of cutting head and pick. The pick is a key component of the roadheader, and its material and manufacturing process will have a greater impact on the performance of the roadheader. With the expansion of the application range of roadheaders, the requirements for the hardness and fatigue strength of the picks have an increasing trend. At present, the body materials of domestic roadheaders are mostly cemented carbide. Due to the complexity of the geological conditions of the rock formation of the roadheader, the picks are required to have high hardness, good impact resistance, and abrasion resistance, so as to ensure that the roadheader has a stable working ability when cutting quartz-rich rocks. Not only is the material of the picks very important, but the shape of the picks and the arrangement of the cutting heads also have an impact on the performance of the roadheader. Pick-shaped picks are widely used because of their good self-sharpening and impact resistance. The arrangement of cutting heads directly affects the stability and work efficiency of the whole machine.

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