Chapter 971 The Real Level of the USSR in Automotive Technology

Chen Dong is coming?

Everyone was stunned, and Dong Minzhu's opinion was the same, everyone didn't think that Chen Dong was here to praise himself, since he didn't come to praise himself, is it still difficult to guess the purpose of the reason? I must be very dissatisfied with my work, extremely dissatisfied!

Thinking about it carefully, it seems that Chen Dong's dissatisfaction can also make sense, the current Soviet Union is almost everywhere on the ground (although the word "former" must be added in front of the Soviet Union) is almost everywhere, but what have these people done in addition to helping the company buy a bunch of scrap iron for 3.5 million US dollars?

It seems that nothing has been done, how much equipment has the company bought? less than 20%; How much technology did the company buy? less than 30%; What the company wants......

It's not that I don't know, so I counted my fingers, and everyone's two legs trembled: With this result, I can't explain it anyway, Chen Dong came to Belarus? It seems that there is no other explanation than scolding himself. Pen & Fun & Pavilion www.biquge.info

If you just scold yourself and these people, I'm afraid that Chen Dong won't give yourself a chance after scolding.

"I won't say much more," Dong Minzhu looked at his companions with a solemn face with a gloomy face: "Chen Dong has five days to arrive, and the next five days are very important to us!" In the next five days, I don't care if everyone steals or robs, or coercion and inducement, in short, if you can't hand in a satisfactory answer, I believe the consequences are very clear to everyone. ”

………………………………

"Hmm...... I won't ask you how you got the information," Chen Geng looked at the mountains of information in front of him with a smile, and it could be seen that he seemed to be in a very good mood: "In short, you can get things and people, this is your achievement!" Everyone was nice and didn't disappoint the company. ”

Looking at Chen Geng's appearance, Dong Minzhu breathed a sigh of relief in her heart: God knows what they have experienced in the past five days!

Coercion, inducement, kidnapping, blackmail, cooperating with local gangs...... In order to be able to complete the task before the arrival of Chairman Chen, everyone has put in 12 points of effort, and now it seems that this level has finally passed!

Bold, Dong Minzhu asked the person who was flipping through the information in front of him: "Boss, why do you attach so much importance to the differential technology of the Minsk Wheel Tractor Plant and the Minsk Tractor Plant?" I've seen these things, and I don't think there's anything special. ”

"Nothing special?" Shaking his head, Chen Geng said amusedly: "You don't know the value of these things...... Let's put it this way, with this information and the engineers you brought in from these companies, it is enough for our company to surpass the United States in axle load distribution in five years. ”

With these materials and engineers, can Runhua Industry surpass the United States in the level of axle load distribution of heavy-duty vehicles?

As soon as Chen Geng's words came out, not only Dong Minzhu didn't believe it, but the other comrades present also didn't believe it.

Chen Geng smiled: "I don't blame you, you don't know how powerful Lao Maozi is, let's put it this way, only the Soviet Union has done the best in axle load distribution or bridge load distribution...... Don't understand? ”

Seeing Dong Minzhu looking at him with a puzzled expression, Chen Geng asked.

"Well," Dong Minzhu nodded: "It's really a little incomprehensible, the American automobile technology is so advanced, and the Soviet cars are stupid and coarse at first glance, you actually say that the Soviet Union did the best......"

Chen Geng thought for a moment and explained to her: "I'm talking about the Soviet Union's best job in the axle load distribution of heavy military wheeled off-road transporters - the cars you see are all-wheel drive models, and there is power on every wheel, right?" ”

"That's right." Dong Minzhu nodded, but she still didn't quite understand what this had to do with the fact that the group had to introduce this differential technology from Belarus.

Chen Geng then explained: "Because every wheel has power, and at the same time, the car is often driving on non-paved roads, or even directly driving in the wilderness without roads, the road conditions in this kind of place are very complicated, and the ground must be uneven, resulting in the result that the stroke of each wheel and the friction coefficient between the tire and the ground are different, for example, there is a pit on one side, and the other side is flat, so the wheels on the side of the pit will have to walk some distance more than the wheels on the side of the flat road. At this time, the trouble came out, and the power between the wheels was no longer working in harmony, but was 'competing' with each other. ”

Dong Minzhu pondered for a while and found that this was really the case, for example, there is a pit on the ground, the wheels on the left side need to be rolled over from the pit, and the wheels on the right side are flat ground, so the result must be that the wheels on both sides face completely different friction coefficients and strokes.

If you think about it further, what if there is a small mound of dirt after the left wheel is out of the pit, and there is a hole under the right wheel? The difference between the coefficient of friction and the stroke on both sides is further magnified, which means that the wheels will "compete" with each other more strongly.

"That's not right," Dong Minzhu suddenly thought of another point, and she hurriedly asked: "Isn't the differential widely used in cars just to solve the speed difference between the wheels?" ”

"You can think of a differential, it's good," Chen Geng nodded with a smile: "But after all, you are not a car professional, so you don't quite understand, although the differential can solve some of the power that hinders each other, unlike ordinary civilian models with only four wheels, this multi-wheel drive model has too many power transmission links, and each transmission part is interconnected with the total power mechanism, which is equivalent to many drive shafts competing with each other, and when the load is relatively high and the total mass is relatively high, the torque that restricts each other is quite amazing!" ”

"How amazing?" Dong Minzhu subconsciously asked.

Chen Gengdao: "In many cases, such as the excitement in the field where there is no road at all, this kind of competition with the transmission shaft will even directly break part of the transmission shaft. ”

Dong Minzhu exclaimed, it wasn't that she was making a fuss, but that she couldn't help it.

Although she doesn't know much about automotive technology, but she is also an executive of an automobile company, and she has been exposed to it for a long time, and she also knows some about cars, such as transmission shafts, which seem to have little technical content, but they are actually made of alloy steel with extremely high strength, and they have undergone many heat treatment processes in the manufacturing process to increase strength, which can be called the hardest and highest strength parts of the car, which is still civilian, and the strength of the transmission shaft of military vehicles is higher, but it is this kind of thing, can it be twisted alive?

How much power does it take?

After hesitating for a moment, Chen Geng still said: "Our country got a few MAZ-543 through special channels in the late 70s, and the Wanshan Machinery Factory and Tai@'an Special Vehicle Factory under the central organization of AVIC were imitated as early as possible, but after more than ten years, the problem of power distribution between the wheels has not been solved, and it is not a big problem to drive on a flat road, but it is not possible in the field, in actual use, as long as the road surface is complicated, it often causes part of the transmission shaft to be torsional......"

"And such a thing?" Dong Minzhu's eyes widened: "That...... Isn't that unqualified? ”

"It's not just unqualified, it's not even a defective product," Chen Geng shook his head, the transmission shaft was torn, what a serious accident this was? "At that time, these two units had joined forces with many scientific research institutes and institutions such as Huaqing and Sinotruk to do public relations, but they failed to solve this fatal problem."

"It's so hard?" Dong Minzhu was a little unconvinced.

"Axle load distribution is a complex random variable, you don't know which wheel will go wrong," Chen Geng sighed: "We can't solve this problem, and the Americans can't solve it.

No, looking at the collapse of the Soviet Union, the two units of Tai@'an Special Vehicle Plant and Sanjiang Wanshan are happy as if something, some time ago they just signed a cooperation agreement with the Minsk Wheel Tractor Plant, and they dug up a lot of people by the way. ”

Dong Minzhu was shocked, he didn't expect Chen Geng's evaluation of Lao Maozi's heavy military automobile industry to be so high! What's worse is that it's not just Chen Geng's high evaluation of Lao Maozi, but that Lao Maozi can really afford this evaluation!

That's pretty remarkable.

After the collapse of the Soviet Union, everyone subconsciously looked down on the Soviet Union, and always felt that the Soviet Union was not good at this, nor was that good, in short, it was not good everywhere, and the Soviet car could be better than the American car X? American cars are sold all over the world, but what about Soviet cars? It is also sold in those Warsaw Pact countries, but who would have thought that in the subdivision of heavy military wheeled off-road transporters, Lao Maozi is so powerful!

"That's not right," Dong Minzhu suddenly thought of a question: "Then why did the Japanese off-road vehicle, the one called the Land Cruiser, not twist the half-shaft of the transmission?" Is it because the Japanese have more technology than the Soviets? ”

Chen Geng immediately smiled, and he waved his hand: "It can't be compared, it can't be compared at all." ”

After a brief pause, Chen Geng explained to Dong Minzhu: "Toyota's civilian off-road vehicle and the Soviet Union's heavy military wheeled off-road transporter with at least 12 wheels are not on the same level at all, how much does a Toyota Land Cruiser weigh?" Even if it is filled with all kinds of supplies, it will not exceed 2.5 tons, such a light weight can only be regarded as a light off-road, and it can completely rely on the strength of the material to make up for this part of the destructive moment.

But these heavy military wheeled off-road transport vehicles, the lowest drive mode is also 8 * 8 start, 12 * 12., 16 * 16 is also very common, counting the load, the overall weight from fifty or sixty tons to one hundred and fifty or sixty tons, you say, dealing with a 2.5 ton of car interaxle load interference and dealing with a white fifty or sixty tons of car interaxle load interference, that can be an order of magnitude? ”

Certainly not of an order of magnitude.