天井钻机多模态钻进电液控制系统研究

发布时间：2018-02-06 00:23

本文关键词： 天井钻机电液控制多模态恒压力恒扭矩　出处：《燕山大学》2014年硕士论文　论文类型：学位论文

【摘要】：天井钻机是一种广泛应用于矿山以及煤矿中的天井掘进设备，我国天井钻机钻机的发展水平与国际知名的天井钻机制造商之间的差距还很大。本课题依托国内某大型工程机械生产厂商新开发的RH30天井钻机项目，旨在解决我国大直径大深度天井钻机长期依赖进口以及自主产品自动化程度过低的问题。本研究课题在查阅大量相关文献以及了解国际国内各大天井钻机最新产品特性的基础上，提出RH30天井钻机电液控制系统的设计要求以及性能指标，，并分析天井钻机施工工艺以和操作流程，设计出一套适用于大直径天井钻机的自动化程度高、高可靠性、高效率的液压系统。通过煤矿调研，设计出一种可拆卸式动力站，其拆卸后的最小单元能够满足煤矿升降井罐笼尺寸的要求，便于运输与装卸。同时，设计出一套具有高度自动化，具有自主知识产权的控制系统。其具有故障预警、防止误操作、钻具自动称重、恒压力和恒扭矩钻进等功能。在已经设计制造出来的硬件基础上，进行多模态钻进控制方式研究，包括恒压力钻进和恒扭矩钻进控制。恒压力钻进解决传统天井钻机钻进过程中依靠操作者读取压力表数值来计算钻进压力的问题，RH30天井钻机将该过程完全交给控制器。而恒扭矩控制则是将置于动力头马达两端的压力传感器的读数作为反馈，通过调整钻杆的轴向压力来保证扭矩恒定。恒压力和恒扭矩钻进的目的都是减轻操作工人的劳动强度、提高自动化程度，同时保护钻杆不受损坏。本研究课题在设计出一套完整的天井钻机电液控制系统的基础上，将恒压力恒扭矩钻进控制引入到天井钻机的控制中，其理论意义在于为今后将更加高级的控制算法引入到钻进设备中奠定了基础。工程实际意义则提高了天井钻机的自动化程度，保证钻进效率的同时减轻了操作者的劳动强度。
[Abstract]:The patio drilling rig is widely used in mines and coal mines. There is still a big gap between the development level of Chinese patio drilling rig and that of the world-famous manufacturer of patio drilling rig. This subject relies on the newly developed RH30 patio drilling rig project developed by a large construction machinery manufacturer in China. The purpose of this paper is to solve the problems of long-term dependence on imported large diameter and large-depth patio drilling rig and low degree of automation of its own products. On the basis of consulting a large number of relevant documents and understanding the latest product characteristics of the large patio drilling rig at home and abroad, the paper puts forward the design requirements and performance indicators of the electromechanical control system for RH30 patio drilling. Based on the analysis of the construction technology and operation process of the patio drilling rig, a set of hydraulic system with high automation, high reliability and high efficiency is designed, which is suitable for large diameter patio drilling rig. A detachable power station is designed, the minimum unit after disassembly can meet the requirements of the cage size of coal mine lifting well, and it is convenient to transport and load and unload. At the same time, the design has a high degree of automation. Control system with independent intellectual property rights. It has the functions of fault warning, prevention of misoperation, automatic weighing of drilling tools, constant pressure and constant torque drilling and so on. On the basis of the hardware which has been designed and manufactured, the multi-mode drilling control mode is studied. It includes constant pressure drilling and constant torque drilling control. Constant pressure drilling solves the problem of calculating drilling pressure by operator reading pressure gauge in the drilling process of traditional patio drilling machine. The RH30 patio rig gives the process entirely to the controller, while constant torque control uses readings of the pressure sensors placed at both ends of the motor at the power head as feedback. The purpose of constant pressure and constant torque drilling is to reduce the labor intensity of the operator, improve the degree of automation and protect the drill pipe from damage. Based on the design of a complete electromechanical hydraulic control system for patio drilling, the constant pressure and constant torque drilling control is introduced into the control of the patio drilling rig. The theoretical significance is to lay a foundation for the introduction of more advanced control algorithms into drilling equipment in the future, and the engineering practical significance is to improve the automation degree of the patio drilling rig. The drilling efficiency is guaranteed and the labor intensity of the operator is reduced at the same time.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD421.3

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