rock drill

1. Cause Analysis and Preventive Measure for Premature Damage of Rock Drill
   凿岩机过早损坏原因分析及预防措施
2. Clogged or cave-in of the hole, can lead to a stuck drill. It is best therefore, to cleans the hole regular intervals, by carrying out air-blowing with the rock drill.
   因为堵块和空穴都可能导致卡钻，因此应定期采用冲击器强吹，定期清洗孔底。
3. For small rotary rock drill bits and rotary prospecting bits to cut soft, medium-hard rock.
   用于中小规格冲击钻及旋转勘探钻具，凿进软岩层、中硬岩层。
4. Mini rock drill has been produced based on patented technology for rock drill warm extrusion.
   采用钎头壳体温挤压精密成形专利技术生产了小型凿岩钎头。
5. Among the above products, Hydraulic rock drill and Hydraulic rock and concrete splitter are our patented products.
   其中液压凿岩机和液压劈裂机是本公司的专利产品。
6. Development and Application of Efficient Energy-saving Full Hydraulic Rock Drill
   高效节能全液压凿岩机的开发和应用
7. The energy loss of the impact mechanism of hydraulic rock drill greatly affects drilling efficiency when it operates.
   液压凿岩机工作时，冲击机构的能量损失对其效率有很大的影响。
8. Drill jig size calculation of the double inclined holes in the handle of YT 24 rock drill The Coordinate Dimensions Calculation and Analysis of Disc Type Component NC Machining
   YT24型凿岩机柄体双斜孔钻模尺寸计算圆盘形零件数控加工的坐标尺寸计算及分析
9. Under normal circumstances, Drifting in the rock face of the gushing water, in the concentration of multiple drill rock drill before the solids content of at least.
   一般情况下，在岩石平巷掘进工作面的涌水中，在多台凿岩机集中打眼之前，固体颗粒含量最少。
10. In2, rock drill rock drill used for cutting tool tip is welded with tungsten carbide cobalt American import cutter.
    岩石螺旋钻头岩石螺旋钻头所用切削具为尖部镶焊有钨钴硬质合金的美国进口截齿。
11. This paper designed a new type of muffler for pneumatic rock drill with the theory of impedance.
    利用阻抗消声原理为气动凿岩机设计了一种新型的消声罩。
12. The frame construction, the work flow and the three dimensional modelling method of pneumatic rock drill based on virtual prototype technology were elaborated.
    阐述了气动凿岩机虚拟样机设计的框架结构、工作流程和三维模型构建方法，并在此基础上进行了参数化设计与运动仿真的研究。
13. Design of fault diagnosis expert system for hydraulic component in rock drill
    凿岩机液压元件故障诊断专家系统设计
14. Internal Combustion Rock Drill Stem Throttle Parts of Structure to Improved Operational
    内燃凿岩机柄体部件油门操作机构的结构改进
15. Diagonal cut rock drill plus bits cross-bladed chisel bit
    对角十字形岩石钻头
16. Leading energy loss of the flow valve in hydraulic rock drill was analyzed and its formula was presented.
    分析了液压凿岩机配油阀的主要能量损失，给出了其计算表达式。
17. The paper introduces the homemade down-the-hole rock drilling facilities, hand-held and supported rock drill, heavy rock drill and the classification, model, technical performance and manufacturer of the rock drilling rig, and briefly introduces the several testing approach for rock drilling machine.
    介绍了目前我国生产的潜孔凿岩设备、手持式和支腿式凿岩机、重型凿岩机以及凿岩钻车的种类、型号、技术性能和生产厂家，并简介了凿岩机械的几种测试方法。
18. On working the measuring and analogous system for a hydraulic rock drill
    液压凿岩机内部工作参数微机测试和模拟系统
19. This paper introduces the developing course, technical progress, structural features and application results of rock drill tools for mines.
    综述了矿用凿岩钎具的发展历程、技术进展、结构特点和应用效果。
20. Finally, based on the theories and methods presented, a new independently-rotated valveless pneumatic rock drill was designed.
    最后，以本文提供的理论与方法，设计出了一台新型无阀气动独立回转凿岩机。
21. When other parameters are identical, increase of percussive frequency will reduce the noise level of hydraulic rock drill.
    在其它运行参数相同时，提高冲击频率将降低液压凿岩机产生的噪声；
22. In this paper, the major energy loss of hydraulic impact mechanism was analyzed in theory, and a calculating formulae of the energy loss was deduced, which is of guiding importance to the design of hydraulic rock drill.
    从理论上分析了液压冲击机构的主要能量损失，导出了能量损失的计算表达式，对液压凿岩机的设计具有重要指导意义。
23. In this article, Rock Drill, Drill Steel, Bit and Rock have been carefully studied as a whole system.
    以凿岩机、钎杆、钎头及岩石作为一个整体系统进行了细致的研究。
24. Development of Tools for Rock Drill in China
    我国凿岩钎具行业的发展
25. Round a elastic rod, this paper establishes a rock drill model which composed of four basic components.
    以弹性杆为核心，建立了由四个基本元件构成的凿岩机械力学模型。
26. The rock drill ability is an important index for optimizing the selection of drill bit.
    岩石可钻性是石油钻井中优选钻头类型的重要依据。
27. Safe Operation and Maintenance of Mine Rock Drill
    矿山用凿岩机的安全使用和维护
28. At the same time, the new detection method also provides a reference for hydraulic rock drill impact performance trends.
    同时，新型检测方法也为适应液压凿岩机冲击性能不断提高的发展趋势提供了一个新思路。
29. Theoretical analyzed to this structure, the results show that it plays an active role o improve the life of the hydraulic rock drill.
    并对这一机构做了理论分析，结果表明该缓冲机构缓冲效果明显，对提高液压凿岩机寿命有积极的作用。

noun

1. a drill for penetrating rock

   Synonym:    bore bitborerstone drill