A tractor body contains engine, transmission, walking, steering, hydraulic suspension, power take-off, electrical instruments, driving control and traction and other systems or devices, but the most important of them is probably the engine or power system. Pen, fun, pavilion www. biquge。 info

Early tractors were steam-powered, which was bulky, expensive, inconvenient to use, and less efficient than other powered tractors.

In addition to steam power, tractors are available in two power options, one with a gasoline engine and the other with a diesel engine.

The two engines are relatively compared, the former is easier to start than the latter, the noise is low, but the auxiliary equipment is more, the maintenance is complicated, and the latter has a large torque, simple structure, high reliability, low fuel consumption, it can also be said that the probability of failure of the diesel engine is smaller than that of the gasoline engine, easy to maintain, and the power is larger, but the diesel engine also has obvious shortcomings, the diesel engine works with high vibration and low speed (4000 rpm ~ 5000 rpm), and the noise is large.

Compared with the two, it is better to choose a diesel engine for a bulky tractor, if it is a mass production and sale of agricultural tractors, the use of agricultural tractors will only be farmers, although the diesel engine is noisy, but the probability of failure is relatively small, can you expect a farmer to learn how to maintain a tractor? This is clearly unrealistic.

The diesel engine was originally supposed to have been invented by the German inventor Rudolf Diesel in 1892, but the Chinese Empire had already built the diesel engine many years in advance, and the imperial air force airships were powered by diesel engines, but they were large diesel engines.

Although the first tractors were bulky, they could not fit large diesel engines, so it was logical to reduce the size of diesel engines and produce diesel engines suitable for tractors.

When Yan Xueyi and his entourage walked into the factory, they saw dozens of people who were no more than 30 years old circling around an experimental tractor.

This experimental tractor is 2.5 meters wide, 3.5 meters long, and more than 1 meter high.

The running gear of the tractor is composed of idler, follower wheel, roller, driving wheel and track, and such a tractor can be called a crawler tractor.

The chassis of the chassis is set off by the running gear, and at the front of the chassis is a bare diesel engine, an erected exhaust pipe is connected to the diesel engine, the diesel engine has been running, and the exhaust pipe has been emitting black smoke, if the tractor makes forward or backward actions, the exhaust pipe will emit more black smoke.

Behind the diesel engine is a simple cab with no shelter, not even a normal seat, replaced by a wooden stool, on which a smoky man is operating the experimental tractor, and this person is Zheng Youqiang, the director of the tractor factory.

Zheng Youqiang, 26 years old this year, is the first graduate of Yuanhe University, the first university in the Chinese Empire, but now he has become the director of the Yongyi Tractor Factory, leading a group of people to research and manufacture tractors.

Yan Xueyi and his entourage approached the crowd, even if the people in the tractor factory were obsessed with tractors, they also found the arrival of Yan Xueyi and his party.

Others don't know Yan Xueyi, the emperor of the empire, but as the director of the tractor factory appointed by Yan Xueyi himself, Zheng Youqiang has seen Yan Xueyi with his own eyes.

The tractor was right in front of Yan Xueyi and his party who were approaching, Zheng Youqiang's eyes looked through the black smoke coming out of the tractor's exhaust pipe, and when he saw Yan Xueyi and his party walking towards him, Zheng Youqiang recognized Yan Xueyi at once.

Zheng Youqiang, who was excited, didn't care about the tractor, jumped directly from the tractor, and even brought down the stool under the seat.

Zheng Youqiang walked quickly towards Yan Xueyi and his party in the surprised eyes of the tractor factory.

"Zheng Youqiang, the grass people, is waiting for the emperor to come!" Zheng Youqiang walked quickly in front of Yan Xueyi and bent down to salute.

Hearing Zheng Youqiang's words, the people in the tractor factory suddenly realized that the person who came was the emperor of the empire, and the people also hurriedly faced Yan Xueyi and bent down to salute.

"Flat body, Zheng Youqiang, how is the tractor research?" Yan Xueyi asked Zheng Youqiang with a smile on his face.

Zheng Youqiang got up and said without thinking: "Your Majesty, the tractor that the emperor sees now is the fifth tractor made by Caomin and others, the structure of this tractor is further streamlined on the basis of the previous tractor, the operation is more simple, and the probability of failure is reduced. ”

Hearing Zheng Youqiang's words, Yan Xueyi glanced at the tractor a few times before he said to Zheng Youqiang: "This is already very good, as long as there is no big problem with this model of tractor, then start mass production, you are mass-producing this tractor, and then research new tractors, there are still large areas of land in the north of the empire waiting for tractors to be reclaimed, and when you mass produce the tractors, I will be rewarded." ”

"The grass people live up to their grace and will definitely mass produce tractors as soon as possible." Zheng Youqiang said goodbye.

"Okay, don't salute anymore, you're testing a tractor? Go and get the tractor up and running, so I and the Queen can take a good look. ”

"The grass people obey the emperor's will." After speaking, Zheng Youqiang turned around and walked briskly towards the tractor that was still running, put the stool back into the cab of the tractor, Zheng Youqiang boarded the tractor in one step, and then sat down on the stool, ready to operate the tractor.

The people of the tractor factory hurriedly stepped aside and fully displayed the tractor.

Airplanes! Airplanes!

Zheng Youqiang increased the engine power, making the noise from the tractor getting louder and louder, and the black smoke coming out of the tractor's exhaust pipe was also increasing.

The next moment, the tractor maneuvered, and such a big steel monster moved under the control of Zheng Youqiang, and the tractor slowly advanced to the front for a distance, and then made a "difficult" turn and made various movements in the empty factory area.

Mu Xue and Mu Zhen'er looked at this steel monster, their eyes were full of strange eyes, and they had the idea of wanting to try it in person, Mu Xue and Mu Zhen'er both liked to ride horses, but now such a steel monster appeared, which was naturally a novelty, but the thick black smoke and loud noise from the steel monster made the two stop and give up the idea in their hearts.