Daqin Fusu: It is difficult to start the battle

Chapter 110 The Carriage
Fusu drew a few strokes on the straw paper, and then thought that the Qin State's terrain was complicated, and if the horsepower was insufficient when going uphill, there might be a risk of the car slipping, so he decided to add a brake device behind the wheel.

In this way, with the assistance of manpower, as long as the slope is not too large, there should be no problem with normal traffic.

As for the steering of the wheels, Fusu first drew a simple version of the differential, but then took into account the current manufacturing process, so he decided to honestly copy the early four-wheeled carriage.

Western-style four-wheeled carriages are different from Chinese-style four-wheeled carriages.

When the Chinese-style four-wheeled carriage turns, it mainly relies on great strength to perform miracles, and it turns hard.

The main reason is that the structure of the entire carriage is similar to a large wooden box with four wheels, and it is naturally inconvenient to turn. This is also an important reason why the carriages are on the same track.

Therefore, the current mode of travel is mainly two-wheeled vehicles.

In the following 2000, the reason why there were not a large number of four-wheeled carriages was overpopulation, shortage of horsepower, and roads in disrepair.

Although the Chidao of the Qin Dynasty was the same as most of the roads in later generations, it was built with rammed earth, and it was also muddy when it rained.

But the population is not as explosive as later generations, and there are many horse breeding lands with lush water and grass.

This gave Fusu an opportunity to improve.

The appearance of the four-wheeled carriage does not mean much to the individual.

But for a country, especially a landlocked country like Qin, the significance is very important!
The large load capacity of the four-wheeled carriage can greatly reduce the cost of land transportation.

Not to mention anything else, just to support Li Xin's battle in the frontier, half of the official warehouses in Beidi County were empty, and the rats in the official warehouses in Longxi County left with tears...

Most of the food consumed was eaten by the people who transported the food.

The battle of Changping was even more so, so Lu's Chunqiu said that although Qin was victorious in Changping, it would be decided after three years, the soldiers and the people were tired, and the food was exhausted.

In Fusu's view, the appearance of the four-wheeled carriage is not only conducive to the transportation of military rations, but more importantly, it can improve the circulation of goods, which in turn affects the development and prosperity of the handicraft industry, and the improvement of production technology has demand and motivation. It will bring about changes in every aspect!
The early four-wheeled carriages were actually very simple. The front two wheels were installed on one frame, and the rear two wheels were installed on the other frame, similar to the combination of two two-wheeled vehicles. The two vertical hard shafts are connected together, so that the problem of four-wheel steering can be easily solved.

The so-called one point is transparent, not one point is not transparent.

After Fusu drew the sketch, he thought that it was not enough to just change the structure of the carriage, but also need to change the way the horses were tied to the cart.

Although China lags behind in the technology of four-wheeled carriages, we are not a little bit ahead of others in the way of driving.

At this time, in the two-wheeled carriages used in West Asia, Europe, and North Africa, the reins were fixed on the necks of the horses. When pulling the carts, the horses’ necks were forced to compress the trachea, and it was easy to suffocate. Therefore, the speed of the carriages was extremely slow. It is also reflected in when they control the cattle.

At this time, the tying method used by Qin State, when the horse is running, the stress point is at the shoulder blade, which does not affect breathing.

So there is another problem, the overall height is too high, and it is easy to overturn when turning sharply...

Another advantage of the four-wheeled carriage is that what the horses pull is not the cart, but the guide wheels (front wheels) and the guide rod between the bogies.

Fusu thought for a while, and adjusted the sketch of the carriage again.

Judging from the structure in his brain, the prying force of the shaft bolt is proportional to the lateral force on the wheel and also proportional to the radius of the wheel.

Therefore, the front wheel should be appropriately smaller, so that after adding the guiding mechanism, the rolling direction can be consistent with the forward direction, reducing the lateral force received.

Therefore, even without a differential, the four-wheeled carriage can also be used on a large scale.

After all, the differential solves the difference in motion in the circumferential direction, while the four-wheeled carriage faces the problem of axial motion (the axial component of the motion vector).

After Fusu finished drawing the second version of the blueprint, he was slightly fascinated by the style of the caravan drawn on it.

A queen with a long standby time in later generations had a luxurious carriage, so Fusu decided to design an exclusive car for herself.

After Ah San became independent, she was just a king, but I was an emperor!
Just do it.

Although you can't make a spring, you can have a leaf spring, plus!

The emperor drives six, so the carriage that can be pulled is actually very large. Although there are only six horses pulling the cart, one horse can usually generate 1.5 horsepower.

Then sofas, table boards, heaters, and freezers are all arranged!

Well, defensive measures are also indispensable. The carriages are reinforced with metal, so don’t even think about large glass windows. If a gentleman does not stand under a dangerous wall, these weaknesses cannot be left behind. It’s better to be honest and tearful behind the bars...

Fusu simply drew a frame. As for the exterior decoration, it is natural to leave it to more professional people.

He estimated that due to the improvement of the structure, the weight of this special car for him should be about the same as that of the golden root car used by the first emperor, which means that it can run unimpeded on the existing roads.

After Fusu finished drawing and put away the drawings, the team arrived at the destination of the trip, Shanglin Garden.

But he didn't come to inspect the army, but to guide the postpartum care of sows... Bah, it's the cultivation of excellent breeding pigs.

After all, in Fusu's heart, pigs are cute and delicious creatures.

Twice-cooked pork, braised pork, steamed pork, healthy rotten meat... which one will not make your mouth water for a long time!
The advantage of raising pigs is that pigs eat more and pull more, so they can produce a lot of manure for fertile fields.

The important thing is that pigs are omnivores, they can be fed grain, pigweed or oligo...it just grows slower.

Compared with the annual litter of cattle and sheep, one litter per litter, pigs have many more litters per litter!

The pigs that Fusu raises in Shanglinyuan are not barrows for meat, but different breeds of pigs picked from various places, of which the Bamei pigs unique to Guanzhong account for about half.

According to folklore, this kind of pig has a narrow and long head, large and drooping ears, and longitudinal "eight" wrinkles on the forehead, so it is called Bamei pig.

In fact, what Fusu regrets the most is that the Taihu pig, which enjoys the reputation of "national treasure", has not been bred in this period.

The reason why it is called a national treasure is that unlike other types of pigs that produce five or six pigs per litter, Taihu pigs start with ten treasures per litter...

Fu Su vaguely remembered that in the introduction about Taihu pigs in the encyclopedia, most of the Taihu pigs were fed with more phosphorus and less calcium, which was good for the development of genitalia, such as wheat bran and duckweed.

Although Fusu doesn't know how to refine breeding in later generations, he still understands the basic breeding methods.

The fast-growing and big ones are used as seeds, and the rest are killed and eaten, simple and rude!
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(End of this chapter)