But in the end, Xiao Tang still suppressed the complaint, and solemnly reported to Li Chengqian: "Gao Ming, now the steam engine has been installed on the train, but there are only two cylinders, not four, and we are now making a chain with enough strength, this chain must be strong enough, which is very important for the train." ”

"Chains? You're saying you're going to use a chain to drive the train like a bicycle? Li Chengqian finally knew why the progress of the train was so slow, it turned out that these guys had specially started to drill the horns, thinking that the chain could solve everything.

"Of course, the chain is used, if the chain is not used, how to solve the transmission problem." Tang Shanzhi did not think that Li Chengqian was capable of solving the problem of this power system. Because in terms of Li Chengqian's character, if he knew the method, he would definitely show it off a long time ago, and he would never wait until now to show off.

Then, to his surprise, this time Li Chengqian was unusual, and pouted lightly: "Who came up with the idea of using chains?" It's stupid. Haven't you ever thought about impact? What if the cargo is overloaded and the chain cannot withstand the huge pulling force and breaks? Don't you want to think about this? ”

Although Li Chengqian did not know why the transmission system of later generations of trains used multi-link, he knew one thing very well, that is, when later generations dragged cars, they often required hard traction, rather than soft traction (rope traction) that could be used casually.

Why is that? Isn't it because of the force, because the tow rope will break due to the constant impact force generated during soft traction.

Since there is such a problem with traction cars, the same problem will exist with the chain that is the transmission part of the train. Although these two things are not of the same nature, their principles are the same.

"Why haven't you thought about it, it's because I've thought about it that I've been researching the right chain, otherwise it's ......" Xiao Tang was stimulated by Li Chengqian, and there was a hint of anger in his tone, obviously thinking that Li Chengqian was a little excessive.

For this kind of stubborn guy, Li Chengqian, as a traverser, decided to give him a slap in the face.

So when Xiao Tang's tone was the most impulsive, His Royal Highness the Tang Crown Prince said slowly: "Haven't you ever thought about using hard transmission?" Is it driven by a connecting rod? Since there is already a crankshaft on the steam engine, why not widen the application of the crankshaft a little more and connect multiple links to the crankshaft. ”

"Hard drive? Multi-link? Tang Shanzhi, who was disgruntled, paused.

"It's terrible to be uneducated." Li Chengqian sighed very forcefully, and picked up a small stone on the ground: "Let you see what is called multi-link and what is hard transmission." As he spoke, he drew a simple picture of the front of a steam locomotive from later generations on the ground, and the focus was on the square connecting rod between the two wheels.

"This ......, this is ......" Looking at the simple diagram on the ground, Tang Shanzhi seemed to think of something, but it seemed that he hadn't thought of anything.

And a young man who had been following him slapped his thigh fiercely at this time: "It can be like this, I understand, I understand!" ”

Li Chengqian was taken aback by the sudden change of the young man, and suddenly took two steps back and asked in surprise: "This, who is this person?" ”

The young man also realized the rude just now, and smiled wryly and said, "The minister is lost, I have seen His Royal Highness the Prince!" ”

"Public loss? The heir of the public loser? Li Chengqian pushed away the night charm that stood in front of him, and looked up and down at this young man who was not much older than himself.

"Yes, you are." Although the young man was wearing the same work clothes as Tang Shanzhi, he was much cleaner than him, except for a pair of black hands, there were only a few black marks on his face, and he was not as embarrassed as Xiao Tang.

"Hello, on behalf of the Research Agency, we welcome you and thank you for your contribution on behalf of the tens of millions of people of Datang!" After learning the origin of the young man, Li Chengqian showed great enthusiasm, and a series of clichés directly confused the young man.

"Uh, uh, yes, yes, yes!" Gong Yilun, who didn't know how to react, was grabbed by Li Chengqian and shook his right hand vigorously, with a smile on his face that was more ugly than crying, and his eyes looked at Tang Shanzhi vigorously, looking like he was asking for help.

However, Yi Tang Shanzhi did not step forward to help, but took the initiative to take two steps back.

With his understanding of Li Chengqian, he must stay away from Li Chengqian every time he is abnormal, otherwise he may be infected with madness at some point.

However, Li Chengqian did not have the slightest self-consciousness, grabbed the hand of the public loss class and did not let go, and asked persistently: "How is it?" Are you satisfied with the conditions here? How is Lingzun's health at home? Where is Ling Zun now? Who else is in the family? ”

A series of questions are like human traffickers who deceive children, and Tang Shanzhi covered his eyes with a 'snap', and he didn't want to see Li Chengqian's shameful side again.

"Home, my father is fine, my ancestors are also very good, and they are still in their hometown in Shandong." Gong Yilun was at a loss by Li Chengqian's enthusiasm, and wanted to ask Tang Shanzhi for help but was ignored, so he could only deal with it with a wry smile that he would answer.

"Oh? The old man is still alive? That's great! That's great! After Li Chengqian heard Gongyilun say 'family ancestor', his face almost smiled, and he let go of his hands and waved his hand to Yang Yuxin behind him: "Quickly arrange manpower and go to Shandong to pick up the old man of Gongyi, and say that the palace wants to entertain his old man on behalf of the Tang royal family, and thank the Gongyi family for their outstanding contributions to my China over the years." ”

What's going on? Gong Yilun's whole person was completely stunned, Li Chengqian's enthusiasm just now had made him scratch his head, and now when he heard that he was going to arrange for someone to go to Shandong to invite his ancestor to come over, the whole person was about to be stupid.

You must know that he came out secretly this time, and wandered around Datang in the name of study tours. When I slipped into Chang'an, I heard about the new thing of 'train' from a friend, so I appeared in the Research Bureau.

He did all this without telling his family, if Li Chengqian really sent someone to Shandong, wouldn't that be tantamount to selling him?

The ancestor of the family can promise that he has to come because of the emperor's order, but the ancestor definitely has no choice but to lose his father-in-law, and when the time comes, the ass is afraid that the peach blossoms will not be beaten immediately.

However, it was too late, Li Chengqian's order had already been issued, Yang Yuxin didn't care what Gong Yulun thought, she would only carry out the prince's order!

(End of chapter)