声频环保钻机液压系统设计与应用
投稿时间:2021-11-10  修订日期:2022-04-12  点此下载全文
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吴浩 中国煤炭地质总局第二勘探局 072750
基金项目:中国煤炭地质总局科技创新项目
中文摘要:声频环保钻机是一种高端土壤调查取样装备,钻机液压动力头产生高频激振力驱动钻具克服浅部地层阻力,使钻具周围地层发生局部液化进而快速获取高质量的地层原状样品。本文在提出50米声频环保钻机主要设计参数的基础上,对钻机液压系统设计方案进行分析,选定了开式液压系统以简化系统油路结构。液压系统采用主油路和辅油路的控制方案,主油路驱动动力头振动、回转、给进和履带行走等动作,辅油路驱动支腿调平、桅杆起落和桅杆滑移等动作。对液压系统参数进行了设计计算,选定钻机液压系统工作压力为21MPa,计算主油路总流量为320L/min,据此确定了发动机的功率及型号,然后安装调试液压系统并进行了参数检测。在此基础上,开展了钻机在土壤采样中的应用推广,取样效果良好。钻机液压系统工作稳定,安全可靠,液压管线排布美观,操控灵活方便,能够满足工程应用要求。
中文关键词:声频环保钻机  液压系统  液压功率  土壤采样  大直径塑料管  半合管钻具。
 
Hydraulic System Design of Sonic Environmetal Protection Drill Rig And Application
Abstract:The sonic drill rig is a high-quality sampling equipment. The hydraulic drill head of the drill rig generates high-frequency exciting force to drive the drilling tool to overcome the resistance of the shallow formation, so as to make the formation around the drilling tool liquefied locally, and then quickly obtain high-quality undisturbed samples of the formation. Based on the main design parameters of 50m sonic drill rig, the hydraulic system design scheme of drill rig was analyzed, and the open hydraulic system was selected to simplify the oil circuit structure of the system. The hydraulic system adopts the control scheme of main hydraulic circuit and auxiliary hydraulic circuit. The main hydraulic circuit drives the vibration, rotation, feeding of the drill head and crawler walking, and the auxiliary hydraulic circuit drives the leveling of outrigger, mast lifting and falling and mast sliding. The parameters of the hydraulic system are designed and calculated. The working pressure of the hydraulic system of the drill rig was selected as 21MPa and the total flow of the main hydraulic circuit was calculated as 320L/min. based on this, the engine was determined. Then the hydraulic system was installed and debugged, and the drill rig was tested. On this basis, the sampling application and promotion of drill rig was carried out. The sampling application effect is good. The hydraulic system of the drilling rig is stable, safe and reliable, with beautiful hydraulic pipeline layout, flexible and convenient operation, which can meet the requirements of engineering application.
keywords:sonic  environmetal protection  dril rig, hydraulic  system, soil  sampling.
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