my scientific age

Chapter 350 Overload Test! (Add 33 for Murray Snow)

"Reporting to the chief, the prototype vehicle has undergone four dynamic tests of 35 times, and all test items have passed successfully. It is currently undergoing a load test. According to the plan of the chief engineer, this is the last test item of the prototype vehicle dynamic test." Outside the crowd, responsible for the test items The recorded guard briefly introduced the basic situation and progress of the current dynamic experiment.

"Fortunately, we have caught up, and this meal is still hot." Chen Kang, who came late, listened to the test situation reported by the guards, nodded slightly, looked at the Red Star tractor that was loading items, and turned to Li Qiang, who was standing beside him, joked: "Young Fan, judging from your experience in the Soviet industrial field, how much do you think the Red Star tractor can pull?"

Chen Kang hadn't participated in the first few dynamic tests at the proving ground before. His task was to stay at the headquarters to welcome Li Qiang. How could he have expected that when Li Qiang arrived at the headquarters and learned about the dynamic tests of the prototype vehicle, he would ask to come over immediately. Chen Kang But he had no choice but to accompany him, and hurried to Liushugou.

Luckily, by hurrying quickly, I finally caught up with the dynamic test of the prototype car that was drawing to a close.

"I haven't had in-depth contact with the field of power machinery, but I do know something about the automobile industry. Based on military truck standards, I think this Red Star tractor can carry up to 1.5 tons. Considering that the base area has never had the production experience and technology of power machinery, The actual level can reach the level of 1 ton, which is considered very good." Li Qiang fixed his eyes on the Red Star tractor loaded by the electric hoist in the loading and unloading area, his eyes were full of curiosity, he pondered for a while, and slowly gave his own judge.

1 tons!
Although this load is not very eye-catching, it is really excellent for a tractor. You must know that even military trucks in many countries have a load in the range of 1.5 tons to 2 tons. As a big industrial country, the Soviet Union At present, only three-ton trucks have been developed.

"What if I told you that this little guy could pull ten tons?" Chen Kang said with a smile.

"Ten tons?! Impossible, this is absolutely impossible, how can a twelve-horsepower diesel engine pull ten tons of stuff." Li Qiang was stunned for a moment, as if he had been hit in the back of the head with a sap, and his head was dizzy. After recovering in two seconds, his eyebrows were frowned, and he immediately said seriously: "Although I major in communication radio, I still have common sense in these aspects, Lao Chen, it doesn't make any sense for you to lie to me like this, we must pay attention to following science when engaging in military industry. law and reality."

Through the information reported by the guards just now, Li Qiang has a basic idea of ​​the general performance of the Red Star tractor. It uses a [-]-horsepower diesel engine, walk-behind mechanical control, and a maximum speed of [-] kilometers per hour.

A tractor with twelve horsepower can pull ten tons?
How can this be?

If this is true, where does the GIS-[-] military truck that the Soviet Union has just developed put its face?
This thing is the latest military truck developed and put into production by the Soviet Union, with a load capacity of three tons and 73 horsepower!
People's 73-horsepower engine can only pull three tons, and the dirt road and field can only pull about two tons. Your 12-horsepower engine can pull ten tons.

Li Qiang said he couldn't believe it.

"Why am I lying to you? I'm just stating a fact. Professor Zhuang's achievements in the field of machinery, and Yu Hua's talent in the field of mathematics and machinery are no less than you who have achieved top scientific research achievements and honors at the Moscow Institute of Communication Sciences in the Soviet Union. Hearing this, Chen Kang laughed and shook his head, looked at the eyes of Zhuang Qianding and Yu Hua in the test field, full of respect, and said calmly: "Seeing is believing, just watch carefully."

Others may be full of doubts about the ten-ton load, but Chen Kang will not. He has witnessed Professor Zhuang and Yu Hua develop various advanced technologies step by step, making the Military Industry Bureau develop to its current state.

Gray cast iron technology, vertical deep hole drilling machine, manual lathe, two-bar skew rolling mill, conveyor belt system, pulverizer, air separation equipment, 2-ton oxygen blowing furnace...

It can be said that without Yu Hua and Zhuang Qianding, the achievements of the Military Industry Bureau would not be possible.

Of course, when it comes to contributions, another person has to be involved, and that is Mr. Zhang San. Without the German-made mechanical processing equipment donated by Mr. Zhang San, it would be difficult for the Military Industry Bureau to develop so quickly.

"..."

Li Qiang frowned, wanted to say something, but didn't know how to say it.

As a good friend who has known him for a long time, he certainly understands Chen Kang's personality. Chen Kang never tells lies, let alone speak big words.

Ten tons, can it be achieved?

Li Qiang suddenly felt that he didn't know how to express himself.

At the loading and unloading point of the test site, two soldiers control an electric hoist to continuously lift steel weights with a reference weight of 100 kg to the cargo box. The load test is divided into three contents, standard load, overload, and limit load.

The test content of the standard load is very simple, requiring the tractor to carry a ton of load and reach the maximum speed for 10 minutes.

The overload test does not limit the weight and speed, as much as it can be pulled, as long as the speed is slightly faster than human walking.

As for the limit load, it is mainly to verify whether the limit load of the body structure meets the standard. The theoretical limit load of the Red Star tractor is as high as [-] tons.

The content of the current test is the standard load. For such a one-hundred-kilogram weight, ten pieces need to be dispatched.

Five minutes later, the prototype car was loaded with ten weights, and the load reached one ton. Then the driver Tao Fang restarted the horizontal bar diesel engine.

"Tud chug..." A familiar and rhythmic mechanical melody sounded again and spread throughout the test field. Tao Fang sat in the open cab, holding the handle of the tractor head with both hands, and started to shift gears with ease.

"Om..." Accompanied by the roar from the [-]-horsepower diesel engine, the high-torque transmission system amplifies the power, and the entire prototype car dragged a ton of weight and ran briskly, with a lighter pace than before. , with a little more stability.

Shift gears and accelerate.

Prototypes pulling heavy loads galloped along the circular drive at increasing speeds.

"Papa papa!" Applause from everyone in the observation area came as promised.

"It's really running, it looks very easy." Li Qiang clapped his hands, looking at the Red Star tractor that was driving continuously, his heart was full of excitement, and the doubts about the load capacity of the Red Star tractor in the back of his mind disappeared, leaving only Sure, there is still a glimmer of anticipation.

Pulling one ton is so easy, maybe, can it really pull ten tons?

Of course, Li Qiang is not absolutely pursuing ten tons, but if he can pull three or four tons in the next overload test, it will be very good.

"Report, the speed of the prototype vehicle is 8.3 meters per second, and has reached the maximum speed of [-] kilometers per hour." After tens of seconds, the timekeeper spoke quickly and excitedly, suppressing the joy in his heart, and reported to Yu Hua, the chief engineer. The real-time dynamic speed of the prototype car.

"Okay, continue to monitor." Yu Hua smiled, with a relaxed and natural face, not surprised by this result, and replied with a nod.

Lin Wan stood beside her, acting as her assistant, with a test notebook in her left hand and a pen in her right hand, carefully recording each test data.

Time ticked by, and 10 minutes later, the entire prototype was running at top speed without any problems.

"Okay, that's all for the appetizers here, serve today's big meal, order the prototype vehicle to drive to the loading and unloading point, enter the overload test, and proceed according to the predetermined plan." Yu Hua gave the order to the dispatcher to end the test, announcing that he would enter the overload test link .

The standard load test can only be regarded as an appetizer at best, and the overload link is the highlight.

When the order was issued, the dispatcher quickly waved the flag and passed the order to the prototype vehicle through the semaphore. Soon after receiving the order, Tao Fang drove the prototype vehicle to the loading and unloading point, ready to load.

At the same time, Lin Wan, who was in charge of recording the test data, wrote the word [Pass] on the blank area of ​​the test result with her right hand.

loading and unloading point.

Tao Fang drove the Red Star tractor to a stable stop next to the electric hoist. The two soldiers quickly got busy. One was controlling the equipment, the other was responsible for connecting the weights. They worked together to lift the weights to the cargo box with the highest efficiency.

piece.

five dollars.

ten yuan.

20 yuan.

There are more and more [-]-kilogram weights, the height of the cargo box is gradually lowered, the fourteen spring steel plates are slightly bent and stressed, and the four high-performance truck tires that meet the quasi-steel tire standard with embedded steel wire technology are slightly deformed by force.

"It's already four and a half tons..." Looking at the ever-increasing weight in the cargo box, Tao Fang, the driver, felt his eyelids twitch wildly and his breathing tense.

Four and a half tons, in the past, this is a figure that he would never have dared to think about. Even if he has the experience of driving a Dodge truck, he would not dare to load so much.

However, the weight is still increasing.

Piece after piece...

After 3 minutes, with the last piece of weight loaded into the cargo box, the load of the first round of overload test came...

Five tons!

Yes, there is no such transition period as two tons and three tons, just come to him with a five-fold overload.

"Five tons..." In the observation area, Li Qiang listened to the load data reported in real time by his ears, his breathing was slightly tense, and his palms were a little sweaty. He didn't expect the overload test to be so violent.

Two, three, and four tons are omitted directly, and the starting point is five tons.

God, do you want to exaggerate?
Not only Li Qiang was nervous, but General Liu and other army representatives in the observation area were all in a state of tension, staring at the prototype vehicle in an overloaded state, for fear of problems.

As for Professor Zhuang in the crowd, he had a natural face and didn't show any nervousness.

Here, everything was ready for the overload test. Tao Fang, who was the focus of the audience, raised his sleeve and wiped the sweat from his forehead, held the crank handle tightly with his right hand, stuffed it into the starting port, and started to rotate with all his strength.

"Pudg..." A few seconds later, the exclusive sound from the horizontal bar diesel engine came out again, spreading throughout the audience like flowing water.

Start successfully, get on board!
At this moment, everyone felt tense as if they were facing a formidable enemy.

Tao's face was serious, his hands were busy, he shifted to first gear, released the clutch, and stepped on the accelerator.

Bursts of black smoke came out of the metal chimney, and the high-speed crankshaft pulled the piston through the crank to perform reciprocating motion. The entire single-cylinder diesel engine burst out with the strongest power, and the high-torque transmission system instantly amplified the power of twelve horses by dozens times, and then transmit power through the large flywheel.

At this moment, this single-cylinder engine is not fighting for itself, it is fighting on behalf of the horizontal-bar diesel engine family!
Half a second later, the Red Star tractor with a total load of five tons moved.

The movement is normal, the posture is calm, and there is a majestic atmosphere like a towering mountain. It no longer has the agility when the car is empty. Under the eyes of everyone, the whole prototype car ran steadily with a weight of five tons. stand up.

"Running! Running!" After a short period of silence in the observation area, accompanied by an excited cry from someone who did not know, all the audience once again gave the warmest applause.

"It can already pull five tons. My God, where did this Professor Zhuang and Yu Hua come from..." Li Qiang was full of surprise. The gold content of Hongxing tractors.

The Soviet Union did not have this kind of tractor that could carry five tons with only twelve horsepower. The important thing was that the tractor in front of me seemed to be able to pull even more.

After 3 minutes of acceleration along the circular lane, the five-ton prototype vehicle was overloaded, and the speed was finally maintained at 21 kilometers per hour.

"Continue to increase the load!" After Yu Hua obtained a series of actual data on the five-ton overload, he gave new instructions without hesitation.

Next, the prototype continued to increase the load capacity.

Six tons, twenty kilometers per hour.

Seven tons, eighteen kilometers per hour.

Eight tons, sixteen kilometers per hour.

Time gradually passed, and at [-]:[-] in the evening, with the release of the test data of the nine-ton load, the load was only close to the double-digit mark.

Nine tons of load, twelve kilometers per hour. ——

PS: The update for Mo Ruixue is over. The reason for this update is a bit interesting. I call it the mechanism of adding updates with fate. The content is very simple. It is to wake up every day and open the notification bar of the mobile phone to show the book friends who voted monthly Add more.

There are already [ster misses you] and [you asked me to come back, I'm sorry to get away] lined up, but I didn't remember it yesterday.

(End of this chapter)