目前，中国正在进行的建设大规模的城市化，为旋挖钻机提供了广阔的市场需求。统计显示，中国目前共有超过660个城市，其中100多万人口的大城市有170多个。随着国民经济的发展，城市化进程也将加快。旧城改造和新城市建设在新的桩基工程将会大大增加。通过城市建设和国家长期规划的项目投入大量的短期投资项目的开发将很快拥有数千亿人民币，旋挖钻机在每个城市的市场需求，需要2?3来计算分析，旋转钻井钻机在中国近几年的总人数将达到2000人。随着工业的不断发展，基础建设，建筑施工企业逐渐明白旋挖钻机的优势，已经发动了“旋挖钻”热。在“旋挖钻”在市场热点的同时，国内旋挖钻机制造企业也开始了量的迅速增长。但是，由于中国旋挖钻机的开发和生产起步较晚，与发达国家相比，无论是先进技术或产品的可靠性，有一个相当大的差距。

中国旋挖钻机

在国内旋挖钻机从事制造业和不足的20多个企业，无论徐工，31家这样的公司大集团和上海金泰销售这一直从事基础和专业公司的勘探设备制造商，而且还必须对主业的基础设施建设，才进入旋挖钻机施工企业，钻机制造领域，如郑州，山东鑫和川岛（上海三凤）近年来。从已超出原来桩工机械行业的这些企业的绝大多数，他们获得极大地改变了桩工机械行业的格局。然而，由于各公司进入旋挖钻机的时间领域，参与的规模，运作，发展模式和金融实力，该公司xx不同的背景，表现出增长和经营业绩也大大不同。总体而言，企业作为比较短，其产品尚未形成规模和系列化20多个企业的产品规格型号，结果大部分时间只是接近30。据统计，在扭矩上，下水平的产品200kNm比例高达75％以上和以下的水平100kNm产品型号只有两个，却只有8％的比例。这表明，同类产品的倾向相当严重。

专家认为，中国制造的旋挖钻的主要差距，首先在液压系统的整体性能和配置还没有达到国外产品，特别是与世界先进水平，先进水平宝棉兰老阶段旋挖钻机相比还有很大差距。优质的产品在国外液压系统一般采用恒功率系统，或负荷传感系统，国际先进的产品利用先进的液压元件，其次，国产旋挖钻机钻杆等关键项目，特别是机器锁定压缩钻杆不能满足主机的要求，主要是因为国内钢管钢管加工，圆度和直线度不能设计要求，无论是实力还是精度不能满足要求;钻杆加工技术仍是在探索，焊接质量不能保证，焊后易变形，而且也难以适应变形。

此外，国产旋挖钻机和操作机器作为国外内部仪表板布局的外观;国外一些旋挖钻机与整个计算机操作系统配备，使经营者能掌握实时钻孔深度，垂直钻井架，到达以确保钻孔深度xx的设计，并保持良好的垂直度，实时系统保持工作，便于维修及时采取措施，确保钻机的正常运作轨道。中国旋挖钻机的钻杆牙嵌入与{dy}钻杆动力和国家的非啮合，显示功能，运营商可以利用自己的经验来判断。

建设，在钻井作业旋挖钻机，有一个钻孔-升级-旋转-扔土壤-返回到原来的口-调整-进行重新钻探。中国旋挖钻机因没有回位定位功能，所以在时间花了大量时间和大量精力和人工低精度。德国池棉兰老岛，意大利巨细胞病毒公司的钻井平台有一个回位定位功能。所谓回位定位功能是旋转机械旋转记录时，土壤角度抛出，然后回头，一旦记录，自动切断的角度了。这样，以确保其在{dy}个旋转位置的回报。大大降低了劳动强度，提高生产效率，操作精度。

国外的旋挖钻机的优势

信息，外钻杆旋挖钻机嵌齿啮合与{dy}钻杆动力，有一个显示状态，比在国内旋挖钻机更好，一个重要方面。这些功能的增加是非常有益的。旋挖钻机用在人都知道，钻杆嵌入牙齿容易磨损（尤其是在网格是不xx的情况下），磨损后的修复磨损也很麻烦。过去，运营商只能体验他们的接触自己的感觉，所以经营者的熟练程度高的需求。有了钻杆牙嵌啮合显示功能，显示屏可以准确地显示牙嵌啮合情况下，甚至是经营者缺乏经验，也可以运行在同一时间大大减少了工人的劳动强度非常好。在钻探作业，钻探深度达几十米，往往由于地质情况，钻杆与钻杆，钻杆和钻头等原因进行连接，因此在钻杆，钻头在事故孔关闭，对建设单位造成重大损失。演习的操作状态显示，提供一个可视化的钻杆，使之为运营商，可有效防止发生意外容易。

现在国外多功能旋挖钻机正在成为一种趋势。可以选择不同的土壤或岩石钻探各种操作，可以替换成槽，预制桩，锚杆及其他行动的钻井钻，连续墙。换言之，是多用途钻机的模块化设计。可用于大口径短螺旋和旋挖斗回转建设;长螺旋建设与管整个套管;与顶管机的封装+工厂的建设;液压抓斗地下连续墙施工;喷气建设;潜孔锤施工;预制桩施工。不同的施工方法，只要求各可选附件的工作，可以做多台计算机，并节省费用的使用。

国外旋挖钻机采用电液比例伺服控制系统，PLC，CAN总线控制，从而提高了钻井定位精度与钻井自动化测试，屏幕显示等，深度，当钻机发生倾斜时，钻机会调整自动报警，并自动。可以显示的信息使用的是各种多功能液晶显示屏，能够钻机控制，垂直自动找平，旋转转储控制，发动机监控，钻孔在一个动画和虚拟仪器的显示，故障检测状态进行测量和显示，机构的工作和报警信息显示。充分考虑到了钻机操作人员的安全设计，并采取诸如驾驶与高空堕物防落物保护反）;绞车的高度限制，驾驶室内的安全控制台（前窗一些措施，发动机，液压等参数显示，报警等。控制一般的专业厂家，功能采取合作或自己的专用控制器和控制软件。

中国旋挖钻机的出路

据统计，桩径较小，桩孔一般工业及桩基础桩基础施工量民间对约65％或以上的全部生产工作的深入，而桥桩等具有高承载能力的桩基桩，只有30％左右。然而，在国产旋挖钻机，从自上而下对200kNm高达75％％以上的高最适合桩小型和中小型旋挖钻机的市场基础建设合适的产品比例扭矩水平很少的投入。由此产生的情况是：一方面，大部分在一个拥挤的市场，在更小的空间撕杀积极与企业相互另一方面，较大的市场的一个合适的产品严重缺乏的实际需要。旋挖钻机的规格品种与市场脱节严重的实际模式。

专家认为，产品开发和发展的施工方法，并提供给用户的解决方案之间的不平衡，导致产品功能的延伸和利用空间的主要原因扩大产品单一，多样化和个性化的贫穷，缺乏;主办设备的开发和运作支持一个主机的不平衡发展，投资的施工机械和施工管理业务和其它输入设备更多地还不够，在产品在使用时产生的功能紊乱的主要原因。有鉴于此，专家建议，企业应着眼于发展大，中，小，如旋挖钻机不同档次。特别是中小型旋挖钻机。由于激烈的竞争，尽可能降低成本和提高可靠性。

此外，专家们强调，企业必须注重旋挖钻机施工方法的研究。工程相结合的方法，通过开发新产品，产品个性化，差异化，以满足客户的不同需求和产品系列化，并发展旋挖钻机品种，一方面要在旋挖钻机好，外国企业和外国研究旋挖钻机先进的设计基础上制定，为中国旋挖钻机产品国情的生产技术;另一方面，旋挖钻机是要加强创新的努力。研究和旋挖钻机中国特色的发展，使中国制造的旋挖钻机不应该与国外产品的优势，以满足国内市场需求，中国的基本机制，以填补空白领域。

Rotary drilling rig market has hidden behind the Feast

At present, China’s ongoing construction of large-scale urbanization, for rotary drilling rig will provide a broad market demand. Statistics show that China’s current total of more than 660 cities, of which more than one million population in big cities have more than 170. With the development of the national economy, urbanization process will also speed up. Transformation of old cities and new urban construction in the new pile foundation project will increase significantly. By urban construction and national long-term planning project invested heavily in the development of short-term investment projects will soon have hundreds of billions of yuan, Rotary Drilling Rig on the market demand from each city take 2 ~ 3 to calculate the analysis, rotary drilling rig in China in recent years, the total number will reach 2,000. With the basic construction of the continuous development of industry, construction enterprises gradually understand the advantages of rotary drilling rig, already waged a “rotary drilling drilling” hot. In the “Rotary Drilling Drilling” hot in the market at the same time, domestic rotary drilling rig manufacturing enterprises have also begun the rapid growth of quantity. However, due to China Rotary Drilling Rig’s development and production of a late start, compared with developed countries, whether advanced technology, or product reliability, there is a considerable gap.

China Rotary Drilling Rig

deficiencies in the domestic engaged in rotary drilling rig manufacturing and sales of more than 20 enterprises, both Xugong, 31 such a large group of companies, and Shanghai Kim Tae-this has long been engaged in basic and exploration equipment manufacturers of professional firms, but also to have basic construction of the main industry, in recent years before entering the field of rotary drilling rig manufacturers of construction enterprises, such as Zhengzhou, Shandong Xin and Kawashima (Shanghai three phoenix) . The vast majority of these enterprises from outside the original Piling Machinery industry, and their access to greatly changed the Piling Machinery industry pattern. However, due to various companies to enter the field of rotary drilling rig time, the scale of involvement, mode of operation, development and financial strength, the company quite different backgrounds, to show growth and operating results have also greatly different. Overall, the majority of enterprises as a result of the time than a shorter, its products has not yet formed size and seriation, more than 20 models of the enterprise product specifications only close to 30. According to statistics, the torque in the upper and lower level products 200kNm proportion is as high as 75% above and below the level 100kNm Product Model only two, the proportion of only 8%. This shows that the tendency of homogeneous products is quite serious.

experts believe that China-made rotary drilling drilling the main gap, the first in the overall performance of the hydraulic system and the configuration has not yet reached the advanced level of foreign products, especially with the world advanced level in the Po Mindanao phase Rotary Drilling Rig than there is still a big gap. Quality products abroad hydraulic system is generally used constant power system, or load-sensing systems, hydraulic components of the sophisticated use of international advanced products; Secondly, the Chinese-made rotary drilling rig key items such as drill pipe, in particular, are machine-locking compression drill pipe can not meet the requirements of the host, mainly because of domestic steel pipe steel tube processing, the roundness and straightness can not design requirements, whether it is the strength or accuracy can not meet the requirements; drill pipe processing technology is still in the exploration of , the welding quality can not be guaranteed, easy deformation after welding, but also difficult to adjust the deformation.

In addition, the Chinese-made rotary drilling rig and operate the machine the appearance of interior dashboard layout as abroad; abroad Some rotary drilling rig equipped with the whole computer operating systems, so that operator can grasp the real-time drilling depth, drilling vertical planes, the arrival to ensure an accurate design of borehole depth and to maintain good verticality; real-time system keeps track of the work, easy to repair to take timely measures to ensure the normal operation of drilling rigs. China Rotary Drilling Rig and the drill pipe embedded teeth meshing with the driving force for the first drill pipe and a state of non-display function, operators can use their experience to judge.

construction, rotary drilling rig during the drilling operation, there is a drilling - upgrade - Rotary - throw soil - to return to the original orifice - Alignment - the process of re-drilling. China Rotary Drilling Rig for failure to return to digital positioning function, so in the time spent a considerable amount of time and energy, and artificial at low accuracy. The German Pool Mindanao, Italy CMV company’s rigs have a back-bit positioning function. The so-called back-bit positioning feature is the rotary machine rotary Record when the angle of soil to be thrown and then turning back, once the perspective of Record, the automatic cut-off. In this way, to ensure its return before the first rotary position. Greatly reduce the labor intensity, improve production efficiency and operating accuracy.

abroad the advantages of rotary drilling rig

information, outside of the drill pipe rotary drilling rig inlay teeth meshing with the driving force for the first drill pipe and has a state of display, which is better than in the domestic Rotary Drilling Rig, a major aspect. These features increase is indeed very useful. Rotary Drilling Rig used where people are aware, the drill pipe embedded teeth are vulnerable to wear and tear (especially in the mesh is not completely the case), after the repair of wear and tear is also very troublesome. The past, the operator can only experience their own sense of engagement, so the operator’s proficiency in high demand. With the drill pipe dental inlay shows the meshing feature, the display can accurately show the meshing teeth inlay circumstances, even a lack of experience of the operator can also operate very well at the same time greatly reducing the labor intensity of workers. In drilling operations, drilling depth of up to tens of meters often, due to geological conditions, drill pipe and drill pipe, drill pipe and drill bits and other reasons to connect, resulting in drill pipe, drill bit off in the hole of the accident, to the construction unit caused great losses. Drill status display for the operator to provide a visualization of the drill pipe and make it easier for the operator, which can effectively prevent accidents.

now abroad multifunctional rotary drilling rig is becoming a trend. Can choose a variety of different drilling soil or rock operations, can replace the drill for drilling, continuous wall into a trough, precast piles, rock bolts and other operations. In other words, are multi-purpose drilling rig used in modular design. Can be used for large-caliber short-helix and rotary drilling rotary bucket construction; long spiral construction; the entire casing with the pipe; wide casing with the pipe jacking machine + mill construction; hydraulic grab underground continuous wall construction; Jet Construction; latent Hole Hammer Construction; precast pile construction. Different method of construction, only required the work of different optional attachment, can do more than one machine, and the use of cost savings.

abroad rotary drilling rig using electric-hydraulic proportional servo control system, PLC, CAN bus control and so improve the positioning accuracy of drilling, with drilling depth of automated testing, screen display, etc., when the rig happened tilted, drilling opportunities for auto-alarm, and automatically adjust. Can display information using a variety of multi-function LCD display, capable of drilling rig control, vertical automatic leveling, rotary dump control, engine monitoring, drilling depth measurement and display, body work in a state of animation and virtual instrument display, fault detection and alarm information display. Give full consideration to the design of drilling rig operator safety, and to take some measures such as driver’s front window with a FOPS (falling objects protection Anti-); winch height limit; driving interior security control console; engine, hydraulic, etc. parameter display, alarm and so on. Control function in general and professional factory to take co-operation or their own dedicated controller and control software.

China Rotary Drilling Rig way out

According to statistics, a smaller pile diameter, pile-hole depth of general industrial and civil construction volume of the pile foundation pile foundation works about the entire production of about 65 % or more, while the bridge piles, such as high pile bearing capacity of pile foundation is only about 30%. However, in the Chinese-made rotary drilling rig, the torque level from top to bottom for 200kNm Product ratio as high as 75%% more than the most suitable for the construction of pile foundation of small and medium-sized rotary drilling rig market has very few inputs. The resulting situation is: On the one hand, most of the enterprises in a crowded market in a smaller space撕杀vigorously with each other, on the other hand, the actual needs of the larger market a serious lack of suitable products. Rotary Drilling Rig specifications varieties and the market divorced from the actual pattern of serious.

experts believe that product development and construction method of development and to provide users with solutions to the imbalance between, leading to product features are a single, diversified and personalized poor, lack of extension and expansion of products of the main reasons of space ; host the development and operation of devices supporting the development of an imbalance of the host to invest more heavily on the construction machinery and construction management operations and other input devices not enough, resulting in products that are in use when the main reason for the functional disorders. In view of this, experts suggest companies should focus on the development of large, medium and small, such as different grades of rotary drilling rig. Especially small and medium-type borer. Because of intense competition, as far as possible to reduce costs and improve reliability.

In addition, the experts stressed that enterprises need to focus on Rotary Drilling Rig Construction Method of research. Combination of engineering methods to develop new products and product serialization through products personalized, differentiated to meet the diverse needs of customers, and to develop varieties of rotary drilling rig, on the one hand are to be good at Rotary Drilling Rig to foreign enterprises and foreign study Rotary Drilling Rig advanced technology, in the draw based on the design, production for the national conditions of China Rotary Drilling Rig Products; On the other hand rotary drilling rig is necessary to intensify innovation efforts. Research and development with Chinese characteristics of rotary drilling rig, so that China-made rotary drilling rig should not be compared with foreign products advantages, to meet domestic market demand, China’s basic machinery to fill the blank fields. (07-12-14)