您要查找的是不是：
- Application of ADAMS user-written subroutines in pneumatic DTH hammer simulation shows their significance for enriching function library of ADAMS and controlling complex simulation. 通过在气动潜孔锤仿真中的应用，说明了ADAMS用户子程序对于丰富ADAMS函数库和控制复杂仿真有着重要意义。
- Simulation and experiment studies on load-deformation of disc spring in pneumatic DTH hammer 气动潜孔锤缓冲碟簧载荷特性仿真与实验
- pneumatic DTH hammer 气动潜孔锤
- The piston is an important part of high air-pressure DTH hammer. 活塞是高风压潜孔冲击器中最重要的零件。
- This paper describes the significance of thestudy on high pressure pneumatic DTH drill,and main features of the products developedby CIMR. 本文阐述了开展高气压潜孔钻机研究的重要意义及我院研制的几种产品的主要特征。
- It can direct design of large diameter DTH hammer and bit,improve application effect of DTH hammer. 钻压大小等，这一规律的发现使潜孔锤与钻头达到了合理的级配，提高了能量利用率，从而提高了潜孔锤使用效果。
- The results indicate that although the impact frequency of DTH hammer decreased somehow, the impact power increased. 结果冲击频率虽然有所下降,但其冲击功却有升高的趋势。
- With reference to the experiment results,the DTH hammer concentric simultaneous casing drilling tool is considered to have extensive applicati... 结合实验结果,认为潜孔锤同心跟管钻具在卵砾石地层中具有广阔的应用前景。
- According to the exploration problems in an open-pit mine,a new drilling method using reverse circulation DTH hammer drill is put forward. 针对露天矿钻探施工中存在的问题,提出了利用贯通式反循环潜孔锤进行施工的新方法。
- Transmission, built in the top drive power head, has two speed range? High and low. It can meet the requirements of both DTH hammer drilling and carbide bit drilling. 动力头设有变速装置,有高低两个档次,以满足潜孔锤钻进及硬质合金回转钻进方法。
- Researches indicate that the new type of DTH hammer without drilling machine can make DTH hammer achieve percussive and rotary drilling using air compressor. 借鉴凿岩机的转钎机构,利用活塞的回程能量带动钻头旋转。
- The paper introduced the structure and principle of DTH hammer drilling with concentric simultaneous casing, which used in seismic exploration drill in gravel. 摘要介绍了适合卵砾石地层地震勘探孔施工用的潜孔锤同心跟管钻具的结构和工作原理。
- The paper introduced the structure and principle of DTH hammer drilling with concentric simultaneous casing,which used in seismic exploration drill in gravel. 介绍了适合卵砾石地层地震勘探孔施工用的潜孔锤同心跟管钻具的结构和工作原理。
- The Application And Experimentation Prospect for DaTong coalfield to resource of Permo-carboniferous period By Air drilling, Foam drilling, DTH hammer drilling with experience of drilling techniques. 摘要通过对空气钻进、空气泡沫钻进工艺和空气潜孔锤钻进工艺的生产试验和推广应用，为大同煤田石炭、二叠纪煤炭资源勘探探索钻探施工的成功经验。
- The Application And Experimentation Prospect for DaTong coalfield to resource of Permo-carboniferous periodBy Air drilling, Foam drilling , DTH hammer drilling with experience of drilling techniques. 通过对空气钻进、空气泡沫钻进工艺和空气潜孔锤钻进工艺的生产试验和推广应用,为大同煤田石炭、二叠纪煤炭资源勘探探索钻探施工的成功经验。
- The loading characteristics and destruction pattern of DTH hammer pistons are examined.On the basis of this,Some measures are put forward to prolong the Service life of the piston. 本文从分析潜孔冲击器活塞的载荷及破坏情况入手，介绍了一些提高活塞寿命的措施。
- Air driven hollow DTH hammer is applied,along with a set of dual wall drilling pipe and a specially designed reverse circulation bit,to conduct continuous coring reverse circulation drilling. 气动贯通式潜孔锤与双壁钻杆及专门研制的反循环钻头 (获国家发明专利 )配套使用 ,可实现反循环连续取心 (样 )钻进新工艺 ,连续获取的岩样采取率高 ,品质好 ,代表性强。
- VISUAL SIMULATION ZOOMING SOFTWARE DESIGN ON VALVELESS PNEUMATIC DTH 可视化无阀式风动潜孔锤仿真电算软件设计
- Keywords foam DTH hammer foam drilling; 泡沫潜孔锤;泡沫钻进;
- Keywords DTH hammer;piston;service life; 潜孔冲击器;活塞;寿命;
