socalfunplaces Chapter 271 Dongfeng Heavy Truck
Chapter 271 Dongfeng Heavy Truck
You know, although diesel engines start slowly and accelerate slowly, they have the advantage of large torque and strong low-speed endurance, making them more suitable for large-tonnage trucks and military trucks.
Compared with gasoline engines, diesel engines have higher thermal efficiency, lower fuel consumption, and longer maintenance cycles. In wartime when supplies are scarce, they are undoubtedly the most economical and practical choice.
Thinking of this, Li Yang suddenly had an idea.
He pondered for a moment, and said to General Lin firmly: "I understand what you mean. Don't worry, I have been planning to develop a new type of diesel engine for a long time. Now this ZC series gasoline engine has just been completed, and the diesel version is just around the corner!"
"Great! I knew you were reliable!" General Lin slapped his thigh excitedly. "By the way, besides the engine, do you have any other ideas for heavy military trucks?"
Li Yang chuckled and said mysteriously, "Commander, our design team is working hard to develop a heavy-duty diesel truck, code-named 'Dongfeng', with a tonnage of more than 10 tons and outstanding off-road performance. It will be a great tool for field transportation for the troops!"
After hearing this, General Lin was so excited that tears welled up in his eyes. He held Li Yang's hand tightly and was speechless for a long time.
In this way, with the care and expectations of his leaders, Li Yang led his team to start a new round of scientific research.
Under tremendous pressure, Li Yang worked day and night and soon produced the first diesel engine prototype.
This is a behemoth with an inline six-cylinder displacement of 9.6 liters. It has a solid structure, rough workmanship, and exudes infinite power.
With it, heavy trucks finally found the most reliable "heart"?1?8
However, Li Yang did not stop there. He knew that a powerful engine is just the soul of a truck.
To build an outstanding military truck, the body, suspension, transmission and other aspects also need careful design?1?8.
To this end, Li Yang selected the "Dongfeng" brand heavy-duty truck as a model and started a new upgrade and transformation plan?1?8.
He plans to completely innovate three major vehicle assemblies:
As for the chassis, he intends to adopt an 8x4 drive layout with heavy-duty leaf spring suspension in order to obtain excellent load-bearing capacity and passability;
In terms of the body, the newly designed full-load bearing frame, equipped with high-strength steel, will greatly improve the body rigidity and ensure driving safety;
In terms of power system, in addition to the self-developed diesel engine, the gearbox will also adopt a multi-gear, high-torque design to achieve a perfect match with the engine.
With this series of technological innovations, "Dongfeng" will no longer be a simple truck.
It will be transformed into an all-terrain working platform, integrating multiple functions such as maneuvering, off-road, loading and unloading, camping, etc.
In wartime, it can transport soldiers and weapons and build temporary fortifications; in disaster areas, it can deliver food and tents to the victims, becoming a mobile lifeline.
"A heavy truck that can transport troops, equipment, and supplies, this is the ultimate vehicle I've always dreamed of!" Li Yang swore to himself as he sketched, "I must build it, even if it takes all my life!"
In this way, under the leadership of Li Yang, a new concept of military truck gradually took shape.
It adopted the rare cab-front layout at that time, with a large cargo box and scientific center of gravity distribution, which was unique;
The body lines are simple and rugged, with sharp edges and corners, and against the background of military green, it looks majestic and extraordinary;
The oversized tires and high ground clearance indicate its extraordinary off-road talent.
As the parts were processed one by one, a majestic "Dongfeng" truck was finally born on Li Yang's design desk!
Li Yang, relying on his own efforts, led the entire design team and started the manufacturing process of this huge machine.
Since we were in the 60s, everything had to start from scratch.
There are no ready-made alloy materials, no sophisticated manufacturing equipment, and no technical data for reference.
Everything depends on Li Yang's wisdom and hands.
But he was not afraid, instead he became more and more courageous.
The first thing to be solved is the problem of car body materials.
Ordinary steel is far from enough to produce a frame and chassis with sufficient strength.
Li Yang decided to design the formula of automotive steel himself.
In the laboratory, I was exploring the ratio of various metal elements.
Chromium, molybdenum, vanadium... one by one, the reinforcing agents were added into the furnace and melted into the molten steel.
Experiment after experiment, and failure after failure, never broke his will.
Hard work pays off. After countless attempts, Li Yang finally found the best formula.
He looked at the furnace of red-hot molten steel with excitement, his heart pounding.
With this new steel, the body strength of heavy trucks will be several times that of ordinary trucks!
Next comes the parts manufacturing phase.
Li Yang personally stood in front of the lathe, put on gloves and rolled up his sleeves.
Without advanced CNC machine tools, all parts have to be polished by hand.
From the simplest gasket to the most complex transmission gear, Li Yang did not miss any of them.
He taught the workers how to read blueprints and operate machine tools, imparting his skills without reservation.
Working day and night has left his hands covered with calluses, but every time he sees those perfect parts being removed from the machine tool, his heart is filled with pride.
In this way, under the leadership of Li Yang, the engine, gearbox, frame, axle... all the key components were manufactured one by one and waited quietly for assembly.
However, the biggest challenge is yet to come: the giant tires that fit the wheels.
You know, the diameter of the wheels of this truck is 1.5 meters!
It is impossible to install ordinary truck tires on it.
To specially order tires of this size is not only expensive but also takes a long time.
Li Yang was worried and paced anxiously in the workshop.
He would never allow this masterpiece, which was about to be completed, to be abandoned halfway because of a tire.
Just at this moment, a flash of inspiration came to my mind!
It reminded me of the wire bundle skeleton tire technology that I had seen in a foreign magazine not long ago.
Compared with traditional tires, this new type of tire is stronger, has better shock absorption, and is more suitable for heavy-duty trucks.
The key is that its manufacturing process is not complicated, requiring only some special rubber formulas and steel cord fabrics.
Li Yang immediately became energized and immediately immersed himself in the design and manufacture of tires.
He looked up rubber formulas, improved the vulcanization process, and even did it himself, using the most primitive spinning wheel to weave flexible steel cord fabric.
After more than a month of hard work, a black, 1.5-meter-high giant ship finally appeared in front of Li Yang!
He touched the treads of the tire excitedly, muttering to himself: "With you, my dream is complete..."
Soon, the technical center's courtyard was bustling with activity again.
Cranes and forklifts allocated from various factories shuttled back and forth in the yard, transporting the shiny parts to the final assembly workshop.
Li Yang, wearing a safety helmet and holding a walkie-talkie, directed the lifting of each machine.
His agile figure was seen shuttling back and forth between the frame, engine and cab; his loud voice rose and fell amid the roar of the machines.
"Lift the engine, pay attention to the angle, a little more to the left... put the gearbox in place, be careful not to touch the bearings crooked..."
Under Li Yang's command, large components were hoisted onto the chassis in an orderly manner, fitting together seamlessly.
Finally, the four huge tires were also lifted onto the front and rear axles and firmly fixed.
As the last bolt was tightened, an unprecedented heavy truck finally appeared before everyone!
It is military green in color, with bold lines and sharp edges. The huge "Dongfeng" characters on the radiator guard plate sparkle in the sun.
With a body length of 8.5 meters and a width of 3 meters, it can hold 20 tons of cargo!
With a wheelbase of 4.5 meters and a ground clearance of 1.5 meters, it is like a tall and mighty beast, giving people a fearless spirit!
Even more shocking is its power parameters:
300马力的涡轮增压柴油机,1600N·m的峰值扭矩,再加上5挡同步器变速箱,16个前进档,2个倒档,前后桥均为全时四驱,速比高达1:4!
This is simply a mobile power station, a hidden tractor, no matter how muddy or mountainous the road is, it can handle it with ease!
From a distance, the truck looks like a moving fortress, shining brightly in the sun, majestic and unrivaled!
At this moment, hurried footsteps sounded behind Li Yang.
He turned around and saw several factory leaders leading General Lin towards him, panting.
Their faces were filled with shock and disbelief.
"Li, Engineer Li, this...is this the 'Dongfeng' you mentioned?" the chief engineer asked stutteringly, pointing at the huge machine in front of him with trembling fingers.
"That's right." Li Yang smiled slightly, his tone calm, but he couldn't hide his inner pride, "What do you think, leaders? With this size and this power, there should be no rival in the whole country, right?"
"No, definitely not!" The factory manager nodded hastily, his eyes almost popping out. "My God, you are amazing! Even the experts in our design institute couldn't think of such a big truck!"
General Lin's eyes lit up and he held Li Yang's hand tightly.
"Engineer Li, with this weapon, our field supply capabilities will undergo a radical change!"
"It can transport troops, carry supplies, and build fortifications. If a war breaks out, it will be the most reliable logistical support for our army!"
As he said this, he turned around and told the staff officer behind him: "Notify the General Armament Department and ask them to put it into service as soon as possible!"
Li Yang was surprised and delighted when he heard this. He knew that this was a special channel for national defense construction. Once it was included in the military sequence, it would be equivalent to giving "Dongfeng" a golden signboard.
The following road test is a comprehensive review of this heavy truck.
Li Yang personally sat in the cab and started the engine. Suddenly, there was a roar, shocking like a landslide!