Set sail1992

Chapter 377
Seeing his beloved apprentice, Professor Xu was very happy, and after a brief chat, he urged: "Hurry up and show me the engine you designed."

Zhang Qihang quickly handed over the drawings of the tiller and the 186 diesel engine to Professor Xu.

After reading the drawings and instructions, Professor Xu came to a sudden: "It turns out that it is all aluminum, no wonder it can be made so light."

Today's diesel engines, from the small single-cylinder diesel engines used on tractors and tricycles to the multi-cylinder diesel engines used on trucks, are all made of cast iron. From the cylinder block, cylinder head to internal parts, they are either cast iron or alloy steel, which is naturally extremely heavy. , and the 186 diesel engine designed by Zhang Qihang, except for a few internal core components and cylinder liners that are made of alloy steel, other parts are all made of aluminum alloy, and the overall thickness is also reduced. The most important thing is , and the huge cast iron flywheel used for energy storage in the single-cylinder diesel engine has been reduced to only 15.5 cm, and forced air cooling is still used. With such a multi-pronged approach, can the whole engine not be light?

Looking at the engine and the "small walking tractor", Professor Xu asked suspiciously, "Is there a market for this small walking tractor?"

"Teacher, I call this thing a micro-cultivator. It first emerged in Japan, South Korea, Italy, France and other countries. Among them, in Italy and France, horticulture and orchard operations are mainly used, and in Japan and South Korea, it is small-scale agriculture. Homework is the main thing," Zhang Qihang explained to Professor Xu: "Our business partner and my father have proposed before that we hope that our family's agricultural machinery factory can develop a land that is only a fraction of the area in the south, especially in the mountains. A small harvester for working on small plots in the hills..."

"Wait a minute," Professor Xu Hu interrupted Zhang Qihang, and asked with great interest: "Your family also has an agricultural machinery company?"

Looking at his teacher's appearance, Zhang Qihang was a little surprised. He didn't expect his teacher to be interested in this. The accident was accidental. Zhang Qihang nodded immediately: "Yes, but the scale is small. At present, our company only has one The product is a small harvester with adjustable spacing, which can harvest wheat, rice, corn stalks, sorghum stalks, peppers, alfalfa, soybeans, cumin, sesame and other crops and economic crops.”

"Is there such a product?" Professor Xu became more and more interested. He turned his head to look at Zhang Jialin, and asked curiously, "Comrade Zhang, have you introduced your company's product?"

Zhang Jialin didn't expect Xu Qingwu, a professor from Harbin Institute of Technology, to be interested in a product of his company. He immediately felt flattered, and nodded quickly: "Yes, yes..."

While speaking, he quickly took out the leaflet of his company from his bag, handed it to Professor Xu, and said with some embarrassment at the same time: "Professor Xu, this is our company's product. Our company is relatively small. It’s just a product, but we have the desire to make it bigger and stronger, so we developed this miniature cultivator suitable for small plots.”

Looking at the photo of the harvester on the promotional coloring page and the related introduction, Professor Xu suddenly nodded and said, "So that's what happened... Your small harvester is really a good thing. It's very suitable for farmers. Sales Things should be fine, right?"

The small harvester in the picture is naturally not comparable to the large combine harvester. This small harvester can only harvest four ridges of wheat or rice at a time, and only has the functions of harvesting and automatic bundling, and cannot thresh rice and wheat. Operation,
Professor Xu also stayed in the countryside back then. He dare not say he is proficient in agriculture, but he knows a little bit, and he also knows what kind of agricultural machinery products farmers brothers need. He knows that the most tiring work for farmers is harvesting. Bundling and transportation are much easier... When harvesting wheat manually, you need to bend over and wield a sickle to do the work. It takes a whole day to do it. After a day, your waist will be broken, but it is convenient to have this thing. According to The above is a description that the harvesting of one mu of land can be completed in a few minutes. For those farmers who have contracted production to the household but have scattered land, this small harvester is really a good thing.

Hearing that Professor Xu praised his own products, Zhang Jialin's face was flushed and he felt honored: "Hehe...thanks to the country's household contract production policy, the sales of our products are not bad, because it was before the summer wheat harvest this year. It has been finalized, so it sold well, and it only sold for a few million. Next year, I am sure to create a turnover of tens of millions."

Professor Xu was taken aback by Zhang Jialin's words: such a simple agricultural machine can have a turnover of tens of millions?but……

After taking a look at Zhang Qihang, Professor Xu said, "Xiao Zhang, you also designed this thing, right?"

Zhang Qihang quickly waved his hand: "Teacher, I really didn't design this. I don't know anything about agricultural machinery. I provided an idea, and my father worked with our province's Agricultural Machinery Research Institute to come up with it."

Indeed!
Professor Xu thought about it carefully, and felt that what Zhang Qihang said made sense. Although both agricultural machinery and internal combustion engines belong to machinery, it would be too nonsense to say that a person who is proficient in the design of internal combustion engines can also be proficient in the design of agricultural machinery. Two very different disciplines.

However, Zhang Qihang was able to come up with the idea of ​​designing a small harvester specifically for small farmers, which is enough to show that this kid is flexible and not simple. After all, this kid was able to save a family that was on the verge of bankruptcy in just over a year. With the development of the small business to the extent it is today, it is not surprising that he came up with such a good idea for his family.

Thinking of this, Professor Xu nodded: "Then your micro tillage machine was also developed according to the agricultural characteristics of the south?"

"Yes," Zhang Qihang said, "Teacher, you may not have been to the south, but you should have seen some photos of farmland in the south. They are all small plots, especially the rice terraces in the mountains, let alone large agricultural machinery. , Even with the current walking tractors, it is impossible to work in many places.

And our micro tillage machine can walk as long as there is a ground width of 50 cm, which is especially suitable for working in places where traditional tractors and walking tractors cannot work.

Of course, the tiller is just a platform. Around this platform, we also need to design a series of supporting agricultural tools. For these supporting agricultural tools, we can only find specialized agricultural machinery design units for cooperation. "

(End of this chapter)