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- YG-30 drilling rig is a full hydraulic operated top drive power head drill. 型工程钻机为全液压驱动动力头式钻机。
- Hovering above the disc is the drive head. 盘旋盘驱动是头部。
- Lay down top drive system spinner. 拆下顶部驱动的旋扣器。
- It can increase the hole inclination angle range and drill elevation angle holes, while setting the top drive power head and hole top plate toward the opposite direction. 动力头及孔口板调转方向,可直接钻凿仰孔,大大增加钻孔倾角范围。
- 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。
- The drive head, as a rule, never touches the discs unless something happens to that cushion of air beneath it. 驱动头,通常不会触及光碟除非有事,垫空底下。
- Model DQ70BS top drive drilling system (TDDS)is developed based on Model DQ60D and Model DQ60P DC TDDS and Model DQ20Y hydraulic TDDS. 摘要在DQ60D、DQ60P直流电顶驱和DQ20Y液压顶驱的基础上，研制了DQ70BS交流变频顶部驱动钻井装置。
- If the rig is equipped with a top drive, the Driller activates the linktilt towards the joint in the mouse hole and the Floormen latch the elevators. 如果钻机配备了顶驱，司钻打前伸按钮使吊卡靠近小鼠洞中的单根，钻工扣上吊卡。
- The agitator drive head is available in a variety of configurations, matched to the application (ie. flange mount, plate mount, with or without tanks seal, etc.). 这类混合器的特点是具有坚固的碳钢轴承座用于保护传动。
- Top drive machines have moveable product bowls that are positioned and lifted to achieve an acceptable seal with a stationary lid/drive unit. 顶端驱动机器配有活动的生产碗，配置好的碗定位进而抬起后即可与固定的盖/驱动单元合紧，达到可接受的紧封程度。
- If a top drive is used, after the single has been broken out, the Driller uses the linktilt to move the single towards and into the mouse hole. 如果配备了顶驱，卸开扣后，司钻打前伸按钮，并把单根推向、放入小鼠洞。
- Having completed calculation of top drive counter-torque and mast mechanics analysis,an upgrading proposal has been put forward. 完成了安装顶驱后反扭矩的计算和井架力学分析,并提出了井架结构的改造方案。
- The unsoundness of the design on hydraulic brake drive head in the primitive deep-hole drill is analyzed and studied.After modification ,the crab's performance figure and technical data are reached. 针对深孔钻机水刹车传动机构原设计结构中存在的问题进行分析、研究,并对机构进行了改进,满足了钻机绞车的各项性能指标和技术要求。
- I can't tell you the answer off the top of my head. 我不经考虑无法告诉你答案。
- It will prevent permanent hard drive defects caused by the hard drive heads contacting the surface of the drive disc. 它可以防止永久性的故障，这些故障都是由于硬盘驱动头接触了驱动盘表面造成的。
- Surrounding the topic of technology on Virtual Prototype(VP) and Product Data Management(PDM), this paper studies the relational theory and technology about the VP and PDM of the Top Drive Drilling System(TDS), then develops and carries out it. 本文紧紧围绕虚拟样机(Virtual Prototype,VP)技术和产品数据管理(PDM)技术这一主题,对石油顶驱钻机虚拟样机原型系统和PDM系统所涉及的相关理论和技术进行了研究和应用实践。
- Aiming at the problem that rotary roofbolters are not suitable for hard terrane,the valveless hydraulic impact-rotary driving head of roofbolter was proposed. 针对旋转式锚杆钻机不适用于坚硬岩层的问题,提出了无阀液压冲击旋转型锚杆钻机动力头结构。
- Lu Dinghua goes Xi'an buys housing materials for the comparatively well-off building in the village, much at 3 o'clock in the evening Zhong Cai drives head day come back. 卢定华去西安为村子里的小康楼买建筑材料,头天晚上3点多钟才赶回来。“自己买的用着放心”,卢支书淳朴地笑着,边拍打着衣服上沾的白灰,有点不好意思,买材料回来她还没来得及换农服。
- A series of advanced technologies are applied,e.g.,DC electric rig,stepless speed regulation pump and top drive system,steerable drilling system,powerful downhole motor,and advanced drill bit. 该井采用了直流电动钻机、无级调速泵及顶部驱动装置、导向钻井系统、大功率优质马达、优质钻头等一系列先进工艺，经科学论证与施工，取得了满意的效果。
- The paper introduces the structure of an automatic adhesive tape sealer,and the function of working platform,side driving device,top driving device and knife rack etc. 介绍胶带自动封箱机的总体结构 ,以及工作台、侧面传动机构、顶式传动机构、刀架等部分的功能。
