Set sail1992

Chapter 375
A lighter and smaller walk-behind tractor...

Zhang Qihang smacked his lips: Isn't this a micro tillage machine? !

Zhang Qihang saw the tiller for the first time in 2010. When he was visiting his grandmother in China, he was very curious when he saw someone selling it in the town. He bought one and took it apart to play with. , not expensive anyway.

The micro tillage machine can be regarded as a miniature version of the front of the walking tractor. It can do all the things that the walking tractor can do!

For gardening, it can be used for rotary tillage, grass cutting, snow clearing, crushing, short-distance transportation, etc.;
Used in the field of agricultural operations, it can be used for plowing, rotary tillage, ridging, film laying, ditching, sowing, paddy field leveling, fertilization and soil cultivation, pumping, spraying and short-distance transportation operations. It can also harvest wheat, rice, , the most important thing is that it can be used in paddy field and dry land. In addition, it can also carry out more than 20 operations such as crushing, harvesting of rice, wheat, pepper, corn, alfalfa, sorghum, and rhizome harvesting;

In addition, it can also carry out operations on orchards, vegetable plots, greenhouses and other small plots. It can be said that although this thing is not big and its performance is average, it is an all-around player, so that after this thing appeared in China, It was quickly accepted by farmers. When Zhang Qihang went back to attend his grandmother’s funeral in 2018, there were even micro tillage machines for sale in the small shop of the village. If it weren’t for the fact that micro tillage machines were extremely popular among farmers, How could it appear in a rural canteen?

As for when the micro tillage machine appeared and whether it is available abroad, Zhang Qihang really doesn’t know, but that doesn’t stop him from being optimistic about this product: the future has proven it.

Thinking of this, Zhang Qihang nodded affirmatively: "Dad, I am also optimistic about this small walk-behind tractor."

Hearing what his son said, Zhang Jialin was immediately happy: "You like it too?"

"Yes," Zhang Qihang replied, "As for the matching engine... Well, you let me think about how to do it, I don't think this thing is too difficult."

What kind of engine is the supporting engine of the tiller?

Most of them are air-cooled gasoline and diesel engines, especially air-cooled diesel engines. When Zhang Qihang dismantled the micro-tiller out of curiosity, he bought several domestic micro-tillers of different brands. Diesel engines include Changchai and Aerospace Bashan. I am very familiar with this stuff.

Zhang Jialin believed in his son's ability. He knew that the engines of Huayun 110 motorcycle and Huayun 150 motorcycle were designed by his son and he asked Harbin Institute of Technology to help him perfect them. So he heard from his son that he was going to help him build a matching diesel engine. It's joy, but also concern: "You are usually so busy at work, do you have time? Will you be tired?"

Zhang Qihang laughed immediately: "Dad, work is work, but this matter is related to the development and growth of our family. I haven't figured out which one is lighter and which is more important?"

Of course you have to do your job well, but of course your family affairs should come first. If one day a powerful person comes and kicks you away, you won't be eating cabbage gangs every day, right?Otherwise it would be too miserable.

Hearing what Zhang Qihang said, Zhang Jialin scratched his head and smiled.

........................

Zhang Jialin thought it would take two or three months for his son to "think about it", but he didn't expect that after only three days, he returned home with a bunch of blueprints, pointed to the things on the blueprints and said to himself: "Dad, This is a miniature walk-behind tractor I designed according to your concept of 'lighter and smaller'. It can use a small gasoline engine or diesel engine, and it can be equipped with a trailer for loading things, but I think this thing is called a 'micro-tiller'. Appropriate."

"Tiller?"

Looking at the whole structure in front of him, which looks almost exactly the same as the front of the walking tractor, but much smaller, Zhang Jialin said enthusiastically: "Tell me, besides being small, this...um, micro tillage machine How is it different from a walking tractor?"

"Smallness is the biggest difference," Zhang Qihang explained: "This tiller uses an 8-horsepower forced air-cooled diesel engine with a maximum weight of only [-] to [-] kilograms, which is only one-third of a traditional walking tractor. Not only can they work in farmland and paddy fields, but they can even enter orchards and vegetable greenhouses."

"Only seventy or eighty kilograms?" Zhang Jialin was shocked by Zhang Qihang's words: "Really? How can it be so light?"

"The main reason why it is so light is the engine," Zhang Qihang explained: "For example, the walking tractors in our village all use Changchai's 10-horsepower water-cooled diesel engine, which weighs more than 100 kg, and you can add at least 20 kg of cooling water, which is 120 kg, and then add the supporting gearbox, frame and other odds and ends, as well as diesel and engine oil, and the weight is at least [-] Kilogram.

But I redesigned an 8-horsepower forced-air-cooled diesel engine, which weighs only more than 50 kilograms including lubricating oil... Well, this is it. "

As he said that, Zhang Qihang found out the blueprint of the single-cylinder diesel engine he designed, with a cylinder diameter of 86mm, which should be named 186 diesel engine according to domestic standards. With the cylinder bore unchanged, the maximum power of this diesel engine can be increased to 10 horsepower by increasing the piston stroke, but the weight does not increase by a few kilograms.”

"Is that so..."

Zhang Jialin nodded while watching, but immediately, he thought of something, and said with a shocked face: "It was only three days ago when I told you about this, and you designed all of these in three days ?”

Although Zhang Jialin knew that his son was very powerful, he designed a miniature walking tractor in three days. Is this still my son?

"Who can make the whole set of blueprints in three days?" Zhang Qihang quickly explained: "Dad, this is just a schematic diagram, or a rendering, but the overall idea is fine, and the rest of the work is nothing more than this idea. It’s just continuing to improve.”

"Well, then I understand."

Hearing what Zhang Qihang said, Zhang Jialin felt much more comfortable: Well, it's okay, my son is smart, he's not a monster after all.

Zhang Qihang continued: "I will continue to improve the drawings later, and when the drawings of the engine and gearbox are almost done, you can go to my teacher directly and ask Harbin Institute of Technology to help you out with this micro tillage machine. It can be sold domestically and exported to earn foreign exchange, and our family will also be a foreign exchange earning enterprise by then.”

(End of this chapter)