At this glance, Xia Hongsheng understood what Li Tai was doing this time. Pen ~ fun ~ pavilion www.biquge.info

The steam engine was modified to do a reciprocating motion, and a winch-like thing must have been added to it, driven by the steam engine, the winch twisted to tighten the cable, and then the bucket truck was pulled up the mountain with force.

It's really a "pull"!

Xia Hongsheng was a little funny, but he was also happy about it.

It is not easy for Li Tai and others to think of these things on their own, with this kind of thinking, sooner or later they can improve the real steam engine and steam locomotive.

"Master, do you see that?" Li Tai saw Xia Hongsheng laughing, so he asked.

Xia Hongsheng nodded, remembering that Li Taifang had just said that the focus this time was not on the steam engine, but on the wheel and track, so he came closer to inspect it.

"Master, last time we improved the Academy's No. 1 steam engine into Academy's No. 2, we thought about how to use it. Because you said that invention ultimately comes down to practical use. Later, a classmate went home and went around, and saw that the coal mine was pulling coal up from the mine, and the mine could not pull the bucket car, so he had to rely on people to carry the coal basket on his back, which was very difficult, and there were not many people on his back. Li Tai said to Xia Hongsheng: "As soon as everyone discusses, we are going to make a bucket truck that can be used in the mine." ”

Xia Hongsheng nodded and asked, "Then how did you come up with laying two railroad tracks and then putting bucket cars on the rails?" ”

"It's not something I came up with." Li Tai shook his head, pointed to another student, and said, "This method is what Brother Shijie thinks. ”

Xia Hongsheng looked over, and the student replied: "Back to the mountain chief, when the student went to Liu Shiju to ask questions, he saw the glass door in Liu Shi's house, pushing and pulling back and forth, so he felt it. It is not easy, almost impossible, to pave a road in a mine, but it is much easier to pave only two railways. Just do it on the outside, then put it down one by one, and nail it back together. So I gave it a try. ”

Xia Hongsheng bent down to look over, and sure enough, he saw that the two railways had grooves like the tracks of sliding doors, and the bulges on the bucket wheels were just opposite to the grooves, embedded in them.

It can be seen that oil is also applied to reduce friction.

"Have you tried it?" Xia Hongsheng asked.

Everyone nodded, and Li Tai replied, "It's not a hundred times to try!" It's smooth up and down, and it's very fast. This hook behind the bucket truck can hook other bucket trucks, and a maximum of 10 bucket trucks have been tried. A bucket truck can put 400 catties in it. If it is used, it is especially suitable for the industry of transporting things from below the ground to the ground. The mine can be of great use! ”

Xia Hongsheng looked at the top and asked, "Someone is burning on it, right?" Try. ”

Hearing Xia Hongsheng say this, everyone was in high spirits and immediately became excited.

I saw Li Tai take out a whistle and blow it a few times.

I heard a roar from above, and then I saw that the rope was quickly pulled, and then tensed, and then the bucket car was pulled by the rope, and in an instant it went up the hill along the railway.

After a while, I saw that the bucket truck slowly slid down again, and the people on it put a winch to control the speed.

The people below filled the bucket cart with gravel, and then hooked the four corners of the bucket cart with iron nets and rolled out the stones inside. With the whistle, the fully loaded bucket truck easily reached the top of the mountain.

"This car is more than 400 catties, if it is carried by a person, it will take several people, and it will be big for a while before it can go up to the mountain. With this, it's up in the blink of an eye! Li Tai said to Xia Hongsheng.

"Good!" Xia Hongsheng nodded: "This thing is very practical, with this thing, many aspects of Datang, especially the mining industry, will have a very big leap." You really put your heart into it. Today, on behalf of the coal mine, the division will book 50 sets first. You can go down and calculate the price yourself, and when it's set, you will inform the teacher. ”

"Master thinks this thing can be done?!" was affirmed by Xia Hongsheng, and everyone was very excited.

Xia Hongsheng nodded: "If you can make this set of things, it will benefit the country and the people, and the academy will assist you in applying for patents and reporting to the imperial court." ”

"Thank you, Master!" The crowd was even more excited.

Xia Hongsheng laughed again and said, "But...... The fifty sets I bought for the teacher are not the ones in front of me, but after the improvements. ”

"After improvement?" Everyone was stunned, Li Tai immediately understood what Xia Hongsheng meant, and hurriedly saluted and asked: "Please also ask the master to point out the shortcomings, and the students will immediately start to improve!" ”

Xia Hongsheng nodded: "You can design this thing with your own ideas, and insist on practice, and make this thing, which is beyond the expectations of the teacher." What the teacher said was just icing on the cake. ”

"Please also ask the master to correct!" The people saluted.

"First of all, it's nice to make the rails grooved, which prevents the wheels from detaching from the rails." Xia Hongsheng said to everyone: "However, this kind of groove also has its drawbacks. In the future, this kind of rail car will be used in mines, stone quarries, and other places where a large number of things need to be transported. Whether it is transporting ore, pulling stones, or moving grain in the granary, there will be debris. Those debris can easily fall into the grooves, and sometimes even fill the grooves. In this way, one accelerates the wear and tear of the rails and wheels, and the other is that it is easy to reverse the wheels, causing the bucket truck to derail and overturn. Come on, let's try. Who would go over and put gravel into the grooves of the two rails? ”

The students responded one after another, and did not need tools, even if they filled some gravel and gravel into the grooves of the rails by hand.

Due to the large number of people, the grooves of the rails were soon filled.

Xia Hongsheng signaled the force to be applied again, only to see that the cable was tightened, and then pulled the bucket truck to go up quickly.

Suddenly, I saw the bucket truck jerk up, flew up, and then flipped in the air, and flipped to the side.

The people above saw it and quickly stopped to retract the rope, and thanks to the strong cable, they hoisted the bucket truck halfway up the mountain.

"This ......" Everyone looked at it, and sure enough, Li Tai stepped forward and said, "It's the students who are negligent!" ”

Xia Hongsheng shook his head: "It's already good that you can think of such a situation. There are three ways to improve for teachers, or you can refer to them. First, the grooves are made on the wheels, and the grooves on the wheels are used to hold the rails. Second, the rails are made into a 'work' type. ”

Xia Hongsheng said as he picked up a piece of gravel and drew it on the ground: "The upper horizontal is slightly shorter, and the lower horizontal is longer." As a result, it is difficult for debris to accumulate in the rails, and the rails are more stable on the ground. After the rail is made into this shape, when it is spread, the wooden sleeper is connected horizontally between the two rails, and then the rail is placed on the wooden sleeper, which can reduce the bump, and also make the rail can spread the force it receives, and increase the service life of the rail. Third, it's easier, replace the cable with a steel cable, which is more firm and safer. ”

"Change the worktype...... Li Tai and the students looked at the sketch drawn by Xia Hongsheng on the ground, and were immediately overjoyed: "Yes! Right! It's so stable that the wheels just get stuck on the rails, and you can't get debris inside! ”