General Secretary Xi Jinping commented during his inspection of Engineer Liu.：“Liugong has a high degree of localization，Many key core technologies are in their own hands.，This is the development direction of our national enterprises.”。
Today's Engineer Liu，Walk on the broad road of autonomous and controllable technology，Become the general secretary's mouth“Development Direction of National Enterprises”A representative of，This achievement comes from 65 years of self-improvement in science and technology.，And the beginning of this road is the thorny path for the research and development of parts.。
Look back on history，It is the intensive research of successive generations of Liu workers.、Overcome difficulties，The key bottleneck of the construction machinery industry is the core components.，Only in this way can Liugong construction machinery products be endowed with continuous innovative genes.，Just ushered in Engineer Liu.“Extend human power with intelligent green machinery”A new vision。
Brave to set a precedentBe the pioneer of independent innovation
There is no road in the world.，When more people walk, it becomes a road.。In the 1960s，It is the beginning of independent research and development of construction machinery parts in China.。 At that time ，There is no such thing in China.“Road”。
But Engineer Liu's engineers did not.。Technology is born in the mind.，The road is born at the foot.，The older generation of Liu workers decided to start down-to-earth from the present.，Exploring the Way of Independent Research and Development of Core Components of Construction Machinery in China。
1959，Liugong takes the lead in setting up foundry workshop、Machining shop，Start by solving common problems with mechanical shift transmissions in the industry，Enter the initial stage of R & D creation。1985，The Ministry of Machinery Industry decided to cooperate with Caterpillar.，Organize 12 enterprises in China's industry to jointly introduce Carter classic models and technologies，Engineer Liu is one of them.。At that time，Engineer Liu has established his own R & D system and practiced it for many years.，Targeted dispatch of learning teams，And formally signed a technology import contract with Carter.，During the eight years of cooperation, more than ten groups of students have been sent to the United States.，Become a top student in this technology introduction activity.，Liugong's independent research and development has thus opened up a new situation.。
Engineer Liu, who is on the right track, did not stop.，But to put“The master led the way in.”As a new starting point for independent innovation。Low operating pressure facing the equipment、The friction plate is severely worn、Clutch failure、The gear is not smooth、The whole machine is weak in walking and the like.，Engineer Liu convenes parts experts、Complete machine application expert、Scientific research team in colleges and universities、Supplier team、Dealer team、Typical user group，Unite the Power of Upstream, Midstream and Downstream Value Chain to Discuss the Countermeasur，Repeatedly deliberating the feasible technical scheme。A lot of practices have made Engineer Liu embark on a broader road of scientific and technological self-improvement.，Engineer LiuBSSeries gearbox、Torque converter、Parts such as control valves have been successfully transformed in this process.。
Liugong's parts manufacturing technology and R & D strength，Supported a number of products to be widely recognized by the market，As a result, Engineer Liu won the title of national brand product for the first time.，At this point，Liugong's independent innovation of spare parts has finally found its own way.。
Break through technical barriers Solve “Stuck in the neck”Question
The rapid development of Liugong soon hit a bottleneck.——Transmission system、Casting、A series of key components such as high-end hydraulic parts still rely on imports.，The towering technical barriers in front of us make high-quality development a flower in the moon mirror in the water.。
The one stuck in the neck must be removed.“ Hand ”！At this time, Engineer Liu has honed his strong spirit of innovation and ambition to create brilliance again.，Concentrate efforts to vigorously develop frontier scientific and technological research。After years of effort，Liugong Electric Drive Technology、Hydrostatic technology、Innovative breakthroughs have been made in core areas such as simulation and torsional shock absorption.。
In terms of transmission system，Research and development of several key components，Includes an automatic shift transmission assembly、Hydraulic torque converter of large loader、Transmission and transaxle assembly，Hydrostatic transmission assembly、Electrically driven gearbox（System）、Bulldozer drive system、Motor Grader drive axle、Earthmoving Machinery reducer assembly, etc.，The technical level has reached the international advanced level.。Hydrostatic transmission can be matched with loader、Bulldozer、Motor Grader，It marks that Liugong has mastered the core technology of the new generation of hydrostatic transmission.。It not only solves the problem of neck jamming of imported transmission parts,，At the same time, it achieves the leading technology in the industry.。
In terms of castings，Development and Application of Liugong New Material High Strength Coated Sand Technology，Ffectively solves the problem of casting core breakage caused by low sand core strength、Problems that cannot be cleaned，And the problem of casting oil leakage caused by large gas evolution of the sand core.，And solves the technical bottleneck of manufacturing the high-pressure hydraulic parts.；Apply the world's leading 3DPrinting technology，Developed Liugong's unique 3DMaterial formulation technology，Realize mass production、Mouldless Manufacture of Sand Core with Complex Curvature；Hot metal pretreatment technology and spheroidizing inoculation technology have been successfully developed，So that that performance of the product is greatly improve。
High-end hydraulic parts，Liugong Independently Designed and Developed Fully Electrically Controlled Closed Medium Load Sensitive Constant Variable Main Control Valve in 2019，Promote the further reduction of energy consumption of the whole machine 8%Above；At the same time，Keep learning international advanced processing technology，Great breakthroughs have also been made in high-precision processing capabilities.；Liugong high-end loader、Excavator、Cranes and other core hydraulic parts are self-made.，It is favored by customers in China and even in the world.。
Throughout the road of independent research and development of Liugong spare parts，Down to earth is the best description.。It's because you're always prepared.，Only in this way can we seize the opportunity of technology introduction in the initial stage.；It is also because we are always walking on the road.，Liugong's self-developed parts products can be compared with foreign brand products in quality.、Performance indicators、Competitions in terms of reliability，High performance parts test equipment has been built.、Test codes and standards。2017，Guangxi Liugong Machinery Co., Ltd. was recognized by the third batch of national industrial design centers，Engineer Liu broke through the technical barrier.“Skills”Get the praise and recognition of the country。
Independent innovation Solve “Stuck in the neck”Question
If it is solved“Stuck in the neck”The problem is passive innovation.，So in recent years, Liugong's electric drive transmission、Hydrostatic、Research on advanced technologies such as simulation and torsional shock absorption，It can be seen that Liugong has entered a new stage of independent innovation.。At this stage，Completion of Liugong Global R & D Center，Two gains“Red Dot Award”，Won the National Science and Technology Progress Award seven times……Liugong's core technology is autonomous and controllable in progress.。
For 65 years，Liugong Parts has been committed to high-end power of construction machinery.、Transmission、Hydraulic、Casting、Research and development of covering parts and other products、Manufacture、Sales and service，The first Wheel Loader in China has been developed successively、The world's first plateau type special Wheel Loader、The largest tonnage Wheel Loader in China、Industry's first electric loader、Industry's first driverless equipment, etc.，Successful expedition to the global market with self-developed high-quality products，For the benefit of mankind。
Nowadays，Liugong has cooperated with Jilin University、Chongqing University、Guangxi University and other universities carry out production, teaching and research projects.，Co-construction with Jilin University“Engineering Research Center”，Solve scientific research problems for enterprises。At the same time，It has also forged a number of excellent technologies.、Excellent quality，Professional R & D team with innovative spirit，A general technology platform has been established.，The product application coverage has been extended to Liugong's full range of product lines.，A set of perfect independent research and development system for core components has been formed.。
R & D strength of components，It is the shining name card of Engineer Liu.。The development and innovation of every R & D engineer，Achieve the excellence and perfection of each product。All R & D personnel will continue to uphold the original aspiration，Forge ahead，Insist on industry-university cooperation，Strengthen the research and development of core transmission parts，Completely break down foreign technical barriers，Insist on independent innovation to promote high-quality development of enterprises。Liugong Spare Parts Industry，It will certainly contribute more to the revitalization of China's equipment manufacturing industry and the great development of global manufacturing industry.。
