Long Bin: advanced into the technology "unmanned area"

In the workshop, the dark -skinned Long Bin compared with the tunnel excavation machine next to him.

"The blade operation test, start." Holding a walkie -talkie, under a order, the giant equipment called "underground dragon" in front of him began to debug.

"The frequency of the motor is 5 Hz, the valve is 430 mAh."

"The vibration is relatively large, adjust the valve opening degree."

Test again and again, a little approximate, the knife tray finally reaches the best value.

Seven -foot men have an inextricable bond with the great country. Since Long Bin's first domestic rock tunnel excavator led by Long Bin in 2014, the number of excavations that Long Bin participated in the research and development has been achieved by 100+.

The 35 -year -old Long Bin is the leader of the R & D team of China Railway Construction Heavy Industry Group. Although he is young, he is a pioneer of domestic excavator technology. From 0 to 100+, from breaking foreign monopolies to cracking world -class "card machines" problems, Long Bin grows with the industry, so that domestic excavators technology leads the world.

In 2009, 22 -year -old Long Bin graduated from Southwest Jiaotong University and came to Changsha to enter the founding heavy industry from Changsha to enter the blank field of domestic excavators.

The tunnel excavation machine sets the functions of excavation, support, and outpatients. It is huge and powerful. It is a construction weapon for underground space development. At that time, the high -end underground engineering equipment such as the excavation of the jig was monopolized abroad and relied on imports for a long time. Long Bin, who has just entered the industry, holds the mentality of letting go -the Chinese must create their own excavations.

"We first learned to paint the scoop of the gourd and eat through the design principle." At that time, Long Bin was holding the conceptual book while entangled with the teacher Liang Xingsheng to explore his experience.

In 2012, the national high -tech research and development plan officially established items to independently develop the domestic first domestic rock tunnel excavation machine. Long Bin was highly hoped.

Since accepting this project, Long Bin has opened a "crazy" working mode: leading the team to the construction site of the relevant equipment, tracking and analyzing the key components of the equipment, researching the principles of work and design and manufacturing; Each detail, and often communicates with hydraulic and electrical designers, to carry out personalized design from various aspects such as knife and knife tools.

The thicker the design drawings, the thinner the problem list, and finally ushered in the break. In December 2014, the domestic first rock tunnel excavation machine successfully went offline at the Changsha production base of the Railway Construction Heavy Industry, completely breaking the long -term monopoly of foreign technology.

"This is a watershed in the industry, marking that my country has achieved the autonomy and localization of hard rock excavators." Long Bin is difficult to hide excitement.

There is a starting point, but there is no end point.

A water conservancy project in western China reached 2268 meters. During a sampling in the cave, Long Bin easily crushed a rock with two fingers. He could not help but be nervous. "

"Eclipse transformed rock belt" is a very complex geological that makes the engineering world ’s brave. The 4 -story and 230 -meter -long body of the excavation shift is equipped with more than 50,000 parts, loaded with various types of equipment such as excavation power, outbound, and support. But in the "eroding rock belt", it has a difficult hurdle- "card machine".

Once the rock burst and collapses, the blade card will be killed, and serious safety hazards will be caused to personnel and equipment. Light delays the construction period, and the project changes the line. Earlier, there was no precedent for the "eroding rock belt" without excavation machines abroad.

"Can you adopt hybrid power, design hydraulic motor and motor dual -drive system?" Long Bin racked his brain to find a solution, trying to make a design that has never been used.

There are 15 groups of key data behind the two sets of systems, arrangement and combination, with a total of thousands of solutions. Long Bin squatted in the workshop. After more than 100 days and night testing, hundreds of groups of test data were obtained, and the data curve scheme that matched the hydraulic and motor was finally found. The "card machine" problem that has plagued the world for more than 50 years has been solved.

From the beginning of that, Long Bin regarded the advanced technology "uninhabited" as the responsibility of young engineers, as the fun of struggle in life. He and the team developed the excavation shots, entering the mountains and crossing the river to cross the sea, which can not only challenge the ultra -high ground temperature of 60 ° C in the Middle East, but also overcome the extremely cold construction environment of minus 30 ° C in Europe. "".

On May 3, the results of the 26th "China Youth May 4th Medal" were announced, and Long Bin was on the list. Behind this young face, there are many halo hidden: Mao Yisheng Railway Engineer Award, the National Railway Federation of Railway Federation of Trade Unions, and the first prize of scientific and technological progress in Hunan Province.

"The design and development of domestic excavators is the extreme." Long Bin said, "Technical Innovation 'Digging' does not stop, so that the more and more strong 'underground dragons' shields to the earth and provide technical equipment support for super engineering construction. "

(Light Daily reporter Yu Aihua Long Army Correspondent Hu Qing)

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