XCMG XE400T, the first tunnel excavator in China, breaks the international monopoly
With the continuous construction of high-speed rail and subway projects and other infrastructure, tunnel and underground space equipment is more and more concerned by construction enterprises.
At present, only a small number of European and American enterprises are making tunnel excavators worldwide, because of market positioning and price factors, it has not been widely applied in the domestic market. XCMG Mining Machinery Department adhere to the "technology leading, use not destroy" product concept, based on domestic high-speed rail, subway construction, developed the first domestic tunnel excavator XE400T. The equipment has good performance and good adaptability, which can help users to determine the excavation amount more accurately. The number of workers on the spot is reduced by about 40%, the operation efficiency is increased by 2 times, and the construction cost is reduced by more than 50%. The launch of this equipment has added a new tool for XCMG tunnel and underground space complete sets of equipment.
At present, domestic tunnel construction generally adopts blasting technology, not only can not accurately control the deviation, but also the risk factor is relatively high." In the project research, a project manager who has nearly ten years of experience in the construction industry said. According to reports, the traditional manual excavation process, the process of low efficiency, high labor costs, construction precision, safety of high cost, time pressure, part of the project with foreign construction equipment, but the purchase price, the use cost is very high, and the maintenance is not timely. With the development trend of mechanized construction instead of artificial, each construction enterprise has great demand for tunnel construction equipment, and the market space is huge in the future.
"At the beginning of the project, we focused on the construction difficulties, product development requirements close to the actual situation, enhanced adaptive design, and ultimately chose the path of joint development with customers." Project designer Dong Yuzhong said. XCMG R & D team after nearly a year of efforts, in-depth high-speed railway tunnel construction site, to communicate directly with customers, collect customer demand, to fully grasp the tunnel construction method, the establishment of technical design, make the products in the beginning of the development can fully meet the requirements of tunnel construction.
The product can easily cope with the tunnel engineering of the common noise, dust, heat, high strength vibration and impact work environment, overcome the tunnel environment power matching, tunneling special tooling structure optimization, intelligent driving system etc. the core technology, the formation of five major product highlights, has 15 core patents, reached the international advanced level.
The biggest highlight of XE400T is that the whole machine is equipped with intelligent tunneling system. In traditional operations, due to the large dust concentration, the driver's limited observation line leads to limited operation. With this system, the driver can be in a comfortable cockpit according to a monitor display content and determine the excavation excavation, excavation using the joystick in real time on the screen, the prominent color can help drivers locate mining direction, the path is more reasonable.
XE400T high pressure common rail fuel injection and exhaust gas recirculation technology, smoke and dust generated in the tunnel construction is not easy diffusion problems, the optimization of the intake system design, improve the service life of the equipment more than 15%. The special tunnel structure is adopted in the working device to make the excavator better adapt to the tunnel cross section, and the excavation range can be increased by moving the position in limited space. The application of new vehicle safety technology can effectively prevent the damage caused by rockfall to equipment and personnel. At the same time, the intelligent control system of multifunctional machines and tools can be developed independently, which can be used to assemble a crusher, a milling head, a quick change device, a tunnel digging bucket and so on, so as to realize the multi function of one machine.
The launch of XCMG XE400T tunnel excavator, will further promote the optimization and construction technology of tunnel environment construction progress, breaking the monopoly of international brands in the field, to enhance the technical strength of Chinese in tunnels and underground space equipment research and development.