industrial lord

Chapter 182 Everything is ready
What Hoffman experienced this winter also happened in the villages and surrounding areas in Wessen, including his finding a wife.

At the beginning of the new year, the soldiers at the border checkpoint were surprised to find that there were many more people coming to Wessen State, most of them were young people, and there were quite a few families with their families.

At this time, Friedrich was testing the clutch with Schmidt and others. There is a problem with this gear clutch. The gear can only be shifted after the gear stops rotating, otherwise there will be tooth knocking and damage to the gear.

Frederick didn't have much to do about it, neither was the gear box.

Research on gearboxes has also promoted the development of gears. Gears require good tooth contact strength and wear resistance, and the gear teeth must maintain relatively high toughness, which puts forward higher requirements for processing.

Then Friedrich realized that he had forgotten the differential, and the bevel gears in the differential that were common in his previous life were too difficult to process with the current technology.

He thought about it for a long time, and finally remembered that there seemed to be such a spur gear differential, which used ordinary gears and worked well with chain drives.

The differential designed by Friedrich has a mooncake-like housing that is driven by a chain or gears.The gears at the top of the two axles are inside, and multiple small gears are arranged on the inner side wall to engage with the axle gears here, just like there are several small circles around a big circle.

When the housing turns, the pinion drives the axle gear on this side.Under normal circumstances, the internal pinion and the axle gear are relatively stationary. When the speed of one axle slows down or even stops, the pinion on this side will rotate.

He made a model out of wood and existing gears and it failed, a little more load on the axles on either side would cause the housing to spin.

Failure is not terrible. The elders said that everyone makes mistakes, but engineers must analyze the causes of mistakes.

Frederick studied it for two days, and finally found out what was wrong. It was his own memory.

This differential is generally correct. There is a problem with the internal pinions. They need to be arranged in a group of two in the shape of a "" when viewed from above and a "" when viewed from the side. bite into each other.

Viewed from the side, when the axle gear turns clockwise, the upper pinion turns counterclockwise.When the gear turns counterclockwise, the right side goes up and the left side goes down, so two small gears that are side by side and rotate in the same direction are stuck to each other.

When the load on both sides of the axle is the same, the two small gears will act as a whole, driving the axle gear to rotate.

Assume that when the load on one axle increases, the corresponding axle gear stops rotating.If the clutch is moving clockwise at this time, the pinion gear on the stop side will rotate clockwise around the fixed axle gear, and it will also rotate clockwise, and at the same time drive the adjacent pinion gear to rotate counterclockwise, and then drive the other side. The turning axle gear turns clockwise.

Although it is rare for one side of the axle to lock and stop, the speed is only slowed down, but from the perspective of mutual motion, it can also be seen that the axle on that side is stopped, and the differential will work.

The new spur gear differential was ready, and everyone installed it on the frame together with the axles and wheels of the carriage, and then connected it to a double-cylinder steam engine that had just been refitted through the chain that had just been made.

As the cylinders are activated, the two wheels spin quickly, and a lever is installed on the outside of the wheels to trigger the counter once every revolution.

Five minutes later, a student reported to the principal that the rotation speed of the wheels on both sides was the same.

Frederick nodded and asked them to proceed to the next test.

Soon, some students held a wooden board and pressed it on one wheel to increase the load. The speed of the wheel on this side slowed down a lot, while the wheel on the other side not only did not stop, but also turned a little faster.

Everyone breathed a sigh of relief, another problem solved.

Then there is more troublesome work. It is also a science to assemble the various systems together. If it is not done well, the light weight is too heavy, and the heavy one will fall apart.

Frederick asked Benz to make models of the same size according to each system. The steam engine, condenser and water tank were empty wooden boxes, the chain was a hemp rope, and the flywheel was directly replaced by the lid of the soup bucket that was bitten by rats in the cafeteria. Wait, as long as the size is the same, then a group of people use their brains to build blocks.

Then a problem arose, the chassis of the steel frame carriage was not suitable for tractors, so Frederick began to calculate the weight and position of each system, referring to the truck chassis he knew, "I thought" to come up with one that would at least not be crushed Chassis out.

In the final assembly stage, various problems emerged one after another. In order to facilitate riveting, the original assembly plan was overthrown and restarted again.

In the continuous cycle of problems-analysis-problems-solutions-summarization of experience, the steam tractor took shape little by little.

What followed was a variety of documents and materials in the archives that were heavier than tractors, and they recorded the results of every experiment and every detail of the process in detail.

Frederick specially arranged for someone to organize them into a book, which will be useful if he travels again someday.

One day in early March, Frederick deliberately asked Benz: "How many days are we expected to complete the assembly?"

Benz opened the thick notebook, which recorded the parts of the entire tractor, and ticked each one installed.

"There are still three days." He replied, "After three days, all the instruments will be assembled, and then water will be added to test the machine without load."

Frederick nodded and said, "Look at it in the next few days. I'm going to see how the farm tools are doing. I'll send them over when they're done, and then I'll be busy with other things."

The agricultural implements matching the steam tractor were researched and manufactured in Bryant's blacksmith shop, and Frederick sent a group of experienced farmers to help.

Frederick is still at ease with this master blacksmith. He has participated in many innovative projects, and he doesn't have to worry about this aspect, so he seldom goes there.

Bryant also lived up to his trust. The plow, planter, trencher and wheat harvester were all ready.

Frederick squatted in front of several unloaded farm tools, studying them with great interest.

Although he put out the slogan that there should be more plows, but what he has now is only a 20-horsepower steam tractor, which can only drive one plowshare for deep plowing. For shallow plowing, there can be more plowshares than the current plowshares.

With the current level of agriculture, the depth of plowing in farmland is generally only about 10 cm. After all, 3 to 5 cm of wheat is enough to sow, and the depth of plowing is less than 20 cm, which is only once every four or five years.

The thickness of the plow layer is more than ten centimeters on the land that has not been deeply plowed, and the plow layer is under it. This layer of soil is dense and relatively compact, which will hinder the infiltration of water, air ventilation and the growth of crop roots.

The deep plowing mentioned by Frederick is more than 30 cm, which is of great help to improve the physical properties of the land, increase the effective water content of the soil, eliminate weeds, increase nutrients, promote the growth of microorganisms, and improve the root development of crops.

他老家曾在50年代于长安、宝鸡等14个县市做过调查，耕深36到40厘米的农田小麦产量比耕深10到20厘米的农田增加超过40%。

So Frederick was very satisfied after measuring the size of the plowshare with his hands. With the development of technology and the popularization of deep plowing, grain production can be raised to a higher level.

Another thing that can improve work efficiency is the wheat harvester. It can be dragged behind the tractor and powered by wheels on the ground. The reciprocating movement can cut the wheat stalks, and the conveyor belt at the rear can send the cut wheat to the other side of the tractor, and let a carriage follow there to wait for the wheat and straw to fall into the car by itself.

Frederick was very satisfied after looking around here, calculated the date in his mind, and thought that this year's summer harvest and autumn sowing could try the power of steam tractors.

(End of this chapter)