Rotary drilling rig

Combined Application of Steel Casing by Vibrating Hammer and Rotary Drilling Rig

振动锤沉拔钢护筒与旋挖钻机钻进的组合应用

Rotary drilling rig is a holing works equipment , which cooperating with different drilling tools .

旋挖钻机是一种取土成孔灌注桩施工的机械设备，配合钻杆与钻具进行施工作业。

Hydraulic system design and analysis for hydraulic rotary drilling rig

全液压旋挖钻机液压系统设计与分析

Development analysis of rotary drilling rig at home and abroad

国内外旋挖钻机发展分析

The method is effective for reliability analysis of key components of rotary drilling rig .

该方法是进行旋挖钻机关键部件可靠性分析的高效方法。

Mechanism of Efficient Rock Cracking and Its Engineering Application of Rotary Drilling Rig

旋挖钻机高效入岩机理及其工程应用

Application of Combination Construction Method with Rotary Drilling Rig and Rotary Table Rig

多面回转工作台式组合机床旋挖钻机与转盘钻机组合施工法的应用

Application of Intelligent Technology in Rotary Drilling Rig

智能技术在旋挖钻机中的应用

Application of Rotary Drilling Rig in the Pile Foundation Construction of Huaihe River Bridge

旋挖钻机在淮河特大桥桩基施工中的应用

Application of Rotary Drilling Rig in Different Strata of Yongning River Bridge

旋挖钻机在永宁河特大桥不同地层中的应用

PLC control technology of rotary drilling rig

旋挖钻机PLC控制技术

An application of DC stepless speed regulation system with crystal shutter tube into rotary drilling rig

晶闸管直流无级调速系统在45－R牙轮钻机上的应用

But energy consumption of rotary drilling rig is relatively large , and its energy utilization rate is not high .

但旋挖钻机的能耗比较大，能量的利用率并不高。

Thus , researching rotary drilling rig and its key components is becoming a more and more urgent task .

因此，对旋挖钻机及其关键部件的研究成为越来越迫切的任务。

A Kind of Small Type Rotary Drilling Rig Suitable for Basic Construction of Industrial and Civil Building Discussion of drilling rig structure

一种适用于工民建基础施工的小型旋挖国内外旋挖钻机结构特点的探讨

Abstract : the large rotary drilling rig is important equipment integrated with mechanical , electric and hydraulic technology in foundation construction equipment .

摘要：大型旋挖钻机是基础施工装备中机电液集成度较高的重大设备。

Improvement in drilling truss and rotating reductor for 45-R rotary drilling rig

45-R牙轮钻机钻架及回转减速器的改进

The development of rotary drilling rig in foreign have decades of history , which have superior performance , unique technology and the new design concept .

钻机的发展在国外已经有数十年的历史，动力头的发展已具备优越的性能、独特的技术和全新的设计概念。

The author introduces construction technology and control points of rotary drilling rig such as shield-tube burying and holes forming .

介绍护筒埋设、成孔等施工技术及施工控制要点。

Rotary drilling rig is a kind of versatile , high-efficiency piles equipment , widely used in the construction of pile foundation .

旋挖钻机是一种灌注桩成孔设备，具有多功能、高效率的特点，广泛应用于桩基础施工中。

Rodless rotary drilling rig changed the working way of rotary drilling rig , and created a new situation for its development .

无钻杆旋挖钻机的提出从根本上改变了旋挖钻机的工作方式，为旋挖钻机的发展开创了一个新局面。

Hope that through this paper can provide development of CP companies effective marketing strategies and beneficial model for the development of rotary drilling rig enterprises .

希望通过本论文能为CP公司的发展提供有效的营销战略，同时，为各旋挖设备企业的发展提供有益的借鉴。

This paper aiming at the characteristics of the rodless rotary drilling rig , designed and produced a monitoring system for its operate .

本文针对无钻杆旋挖钻机的特点，设计并制作了适用于无钻杆旋挖钻机作业的监控系统。

The introduction of monitoring system enhanced the working accuracy and efficiency of rodless rotary drilling rig , reduced workload of operator .

监控系统的引入，增强了无钻杆旋挖钻机的工作精度和工作效率、减轻了操作人员工作量，对旋挖钻机性能的提高有着重要的意义。

Many companies in our country have the ability of research and manufacture rotary drilling rig independently , and improve its key components continuously in practice .

我国很多公司都有着自主研发和制造旋挖钻机的能力，并不断在实践中对其关键部件进行研究和改进。

Rotary drilling rig auxiliary windlass turning malfunction obviating

旋挖钻机副卷扬单向回转故障的排除

Its creative structure overcomes the traditional bottlenecks in rotary drilling rig and hence the depth of drilling is no longer restricted .

它富有创意的结构突破了传统旋挖钻机的瓶颈，钻孔深度不再受限制。

Rotary drilling rig is used in bored pile construction of No.1 and No.2 Yongning River Bridge in Hefei-Nanjing Railway .

合宁铁路永宁河1、2号特大桥钻孔灌注桩基础采用旋挖钻机施工。

Power head is a key component of rotary drilling rig . Its quality and life directly affects the efficiency of rotary drilling rig and safety of construction .

动力头是旋挖钻机的关键部件，其性能好坏与寿命直接影响到旋挖钻机施工效率及施工安全性。

On application of rotary drilling rig in foundation holes of bored piles on bridges The Optimal Design About the Trajectory of Non dig Guided Boring

旋挖钻机在桥梁混凝土灌注桩成孔中的应用非开挖导向钻进钻孔轨迹的优化设计