不同滚筒运动参数对采煤机截割性能的作用分析.docx

该【不同滚筒运动参数对采煤机截割性能的作用分析 】是由【niuww】上传分享，文档一共【2】页，该文档可以免费在线阅读，需要了解更多关于【不同滚筒运动参数对采煤机截割性能的作用分析 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。不同滚筒运动参数对采煤机截割性能的作用分析
Title: Analysis of the Effects of Different Drum Motion Parameters on the Cutting Performance of Coal Shearers
Abstract:
In the coal mining industry, the performance of a coal shearer plays a crucial role in ensuring efficient and productive coal cutting. The drum motion parameters of a coal shearer significantly influence its cutting performance. This paper aims to analyze the effects of different drum motion parameters on the cutting performance of coal shearers. Through a comprehensive study of relevant literature and experimental data, this paper highlights the significance of drum motion parameters such as rotational speed, lift angle, drum diameter, and tooth arrangement in determining cutting efficiency and coal productivity. The findings emphasize the need for proper adjustment and optimization of these parameters to enhance the overall performance of coal shearers.
Keywords: coal shearer, drum motion parameters, cutting performance, rotational speed, lift angle, drum diameter, tooth arrangement
Introduction:
Coal shearers are widely used in underground coal mines for the mechanized cutting of coal. The performance of a coal shearer is crucial in determining the efficiency and productivity of coal cutting operations. One of the key factors influencing the cutting performance is the drum motion parameters. These parameters include rotational speed, lift angle, drum diameter, and tooth arrangement. Understanding the effects of these parameters is vital for improving the cutting efficiency of coal shearers and optimizing coal mining operations.
1. Rotational Speed:
The rotational speed of the drum has a significant impact on the cutting performance of coal shearers. Higher rotational speeds result in a higher cutting rate, offering increased productivity. However, excessively high rotational speeds can lead to excessive wear and damage to the drum and cutting picks. Therefore, an optimal rotational speed must be determined based on the specific coal properties and cutting conditions.
2. Lift Angle:
The lift angle refers to the angle between the drum axis and the horizon. It determines the depth and width of the cut made by the shearer. A larger lift angle results in a deeper and wider cut, which can enhance the coal cutting efficiency. However, a larger lift angle also increases the resistance faced by the shearer, requiring more power. Therefore, a balance must be struck to optimize the lift angle for maximum cutting efficiency.
3. Drum Diameter:
The drum diameter directly influences the size of the cut made by the shearer. A larger drum diameter allows for a wider and deeper cut, thereby improving cutting efficiency. However, a larger drum diameter also requires more power and may impose constraints on the overall machine design. Finding an optimal drum diameter requires consideration of various factors such as coal properties, cutting conditions, and operational constraints.
4. Tooth Arrangement:
The tooth arrangement on the drum plays a crucial role in the cutting process. The tooth design affects the cutting force, tool wear, and overall cutting performance. Various tooth arrangements, such as straight, chevron, and spiral, have been developed to optimize the performance of coal shearers. Experimentation and simulation techniques are often used to determine the most suitable tooth arrangement for specific coal formations.
Conclusion:
The drum motion parameters of rotational speed, lift angle, drum diameter, and tooth arrangement have a significant influence on the cutting performance of coal shearers. Each parameter needs to be carefully optimized to ensure efficient and productive coal cutting. Proper adjustment of these parameters can lead to enhanced cutting efficiency, reduced tool wear, and increased coal productivity. Continuous research and development in this area are necessary to improve the design and performance of coal shearers for sustainable coal mining operations.