The use of water power only requires two gears to be capable of production. Water power solves the problem of human and animal power required for grinding noodles. However, the lack of grinding, the problem of beans has not been solved.

The reason why the efficiency of the pulverizer is not as good as that of the grinding disc is that the speed of the pulverizer is not enough. The reason why the speed is not enough is that manpower and animal power cannot reach a high enough speed. The successful use of hydraulic power makes the high-speed rotation of the pulverizer possible.

A few days later, the craftsmen built two huge wooden gears, and Li Mengxi took his personal tools to the creek for the third time.

After the waterwheel, gears, and pulverizer are all installed, under the action of water flow, the waterwheel starts to start, driving the pulverizer to start at the same speed.

The speed of the water flow is indeed not slow, it is twice as fast as animal power, but it seems that this speed is still not enough.

Li Mengxi stood by the stream and looked at the rushing water. What are some ways to increase the speed of the pulverizer?

All factors were analyzed using the control variable method.

In the set of waterwheel and wheel crusher tools, the components include water, waterwheel, gears, and wheel crusher.

Water has differences such as water quality, water flow direction, water flow rate, water flow speed, and water flow drop.

Water quality has little impact on waterwheels.

The direction of water flow seems to be completely consistent with the direction of rotation of the water wheel, and the effect of the water flow will be maximized. On the contrary, if the direction of the water flow is tilted to each other, the force exerted by the tilted water on the paddle blades will be much weaker.

Li Mengxi couldn't help but look towards the stream in front of him. The stream was winding and turning left and right.

Then I turned to look at the waterwheel. The waterwheel was right at the bend of the water, where the water flow was slanted compared to the waterwheel.

The water flow is not straight, and the force of the water flow hitting the winding waterway will continue to impact the shore, and the power of the water will be continuously dispersed. Moreover, if the direction of the water flow is tilted toward the waterwheel, the power of the water will be weakened by several percent.

Li Mengxi guessed that as far as the direction of the water flow is concerned, if there is a straight enough river channel, and if the direction of the water flow is completely parallel to the water wheel, to this extent, the efficiency can be increased by 10%.

Factors related to water include direction and water flow. The bigger the water, the stronger the momentum. There is no doubt about it.

Regarding the speed of water, the faster the water speed, the faster the waterwheel will be driven. There is no doubt about this.

Due to the height difference of the water flow, the water flow falling from a high place has stronger kinetic energy, which is an excellent way to increase the water speed.

Therefore, in the water wheel-pulverizer system, there are ways to improve efficiency based on the factor of water. You can build a dam, raise the water level, increase the water flow speed, and then trim the river course to make it as straight as possible to maximize the power of the water flow.

To minimize consumption, when installing the waterwheel, the waterwheel should be as parallel to the direction of the water flow as possible.

As for water flow, the size of the water flow seems to be related to the depth of the water wheel entering the water. If the water wheel is too high and exceeds the water surface, it means there is no water. If the water wheel enters the water too shallowly, it means the water flow is very small. If the water wheel is completely submerged in the water, it means there is no water.

The car can't turn.

So, what is the optimal water entry depth for a water tanker?

Is the depth of water entry related to the paddle? Or to the waterwheel? Or is it related to both?

If it is only related to the blades, how much water does the blade enter to achieve the highest water utilization efficiency?

If it is related to the waterwheel, then when the depth of the waterwheel entering the water is equal to the radius of the waterwheel, the water power utilization is the highest?

The waterwheel has a simple shape, just a round shape, while the paddles are more complex.

In order to test the optimal water entry depth, you must first unify the blades and find the best blade shape.

——

In the waterwheel system, in addition to the water factor, the second factor is the waterwheel.

So, what factors affect the efficiency of the waterwheel itself?

If you don’t know, you might as well analyze all the factors.

All the variables of a waterwheel include the material of the waterwheel, the size of the waterwheel, the thickness of the waterwheel, the waterwheel axle, and the waterwheel support spokes. Basically these.

Regarding the material, the lighter the material, the faster it rotates.

Regarding the size of the waterwheel, I don’t know whether the larger the waterwheel is, the more efficient it is, or the smaller the waterwheel, but in addition to efficiency, there is another factor that has to be considered - the difficulty of manufacturing. The larger the waterwheel, the longer the wood required, and the more water it needs.

When the car is too large, a large number of falcon joint structures have to be used. In the entire wood processing process of the water wheel, the falcon joint process is undoubtedly the most time-consuming and labor-intensive. Therefore, considering the production difficulty and production efficiency, the water wheel is not more

Bigger is better, not smaller is better, but the best that can take into account both production efficiency and hydraulic utilization efficiency.

Regarding the thickness of the waterwheel, we cannot know the relationship between the thickness of the waterwheel and its efficiency.

Regarding the water wheel axle, the water wheel axle is the same thing as the ordinary vehicle axle. The way to improve the efficiency of the wheel axle is to apply a little oil on the wheel axle to reduce friction, or to change sliding friction into rolling friction (steel ball bearings...) Li Mengxi

An extremely important component suddenly came to mind.

Ancient vehicles were made of wood and had no rolling bearings.

During the driving process of the wheel, there is friction between the wheel and the ground, and there is another friction between the wheel and the axle.

Li Mengxi vaguely remembered that under normal circumstances, sliding friction is three times that of rolling friction.

Triple friction means that if the wooden axle is replaced with steel ball bearings, the vehicle's carrying capacity can be tripled without adding any other improvements or adding any power.

Without steel ball bearings, a person pulling a wooden-axle vehicle can only pull three hundred kilograms. However, by simply replacing the steel ball bearings, he can pull at least twice as much weight.

To analyze, there are two types of resistance when a person pulls a car, one is the friction between the wheels and the ground, and the other is the friction between the wheels and the axle.

Ball bearings can directly reduce one of the friction forces by three times, drastically reducing the friction force of the entire car. This also allows people to pull heavier cars with the same force. This is like how people can pull a heavier car on the ice.

The same principle applies to pushing extremely heavy objects.

From this point on, bearings are the most important component of the vehicle.

This chapter is not over yet, please click on the next page to continue reading! A small bearing is as useful as a saddle and stirrups to a horse.

Although the bearing is small, a small bearing can triple the carrying capacity of any vehicle. This is three times!

Li Mengxi suddenly realized that steel ball bearings are magical tools. Ball bearings do not seem to be difficult to make. Rural frame trucks seem to just add a few large steel balls to a slot. Because the structure is simple and rough, steel balls will fall out from time to time.

Imitating the ball bearings in rural areas, the manufacturing difficulty lies only in the steel balls.

So, how to make steel balls?

If it had been earlier, Li Mengxi would not have known the technology of making round beads. But not long ago, when planting pearls for river mussels, potters invented the method of making beads in a slot.

The so-called plate and groove bead making method is to carve half a ball on each of the two wooden boards. Then, a ball of mud is placed on the groove. The two boards are closed and slide and rub against each other. After a while, the mud is balled into a ball. It's round.

The clay balls made by potters using the groove method are very round, and in terms of shape, they can already meet the needs of making steel balls.

But there is a problem. The clay balls do not need to be very strong, but the steel balls have to bear the huge weight of the car body. The steel ball structure made by the plate groove method must be loose and fragile, and it seems that it cannot bear the heavy load of the vehicle. But if it is forged The method is to use a hammer to smash out a standard round ball, which is extremely difficult to process.

Steel balls that are round enough cannot be made with other methods. Steel balls that are round enough can be made with the plate groove method, but the strength of the steel balls is not enough. If you want to increase the strength of the steel balls through forging, you will inevitably destroy the shape of the steel balls. Remedy To improve strength, there are only two limited methods: heat treatment, quenching and carburizing.

When Li Mengxi thought that the steel balls produced by the plate groove method might not be suitable for use as bearings for large vehicles, they could be used in other places.

The plate groove steel balls are not enough to support the weight of a heavy vehicle, but the waterwheel is much lighter, and part of the waterwheel is still in the water, so the weight is even lighter. The plate groove steel balls may be able to withstand it.

The waterwheel, wheel axle, and the addition of steel balls can further improve the efficiency of the waterwheel.

——

Li Mengxi was both familiar and unfamiliar with gears. He was familiar with them because he already knew that two vertical gears could link the water wheel with the millstone, but other than that, he no longer knew anything about gears.

For something completely unfamiliar, the method of investigation is still the same method, the controlled variable method.

For a gear, its variables include material, size, shape, thickness, number of teeth, distribution of teeth, length of teeth, shape of teeth, width of teeth, and so on. And what impact do all these variables have on the gear? Li Mengxi was completely unaware of the influence.

This requires a huge amount of testing and a huge amount of data collection to find patterns in the data.

This is only the test required for a single gear.

Gears are components used in conjunction. Between the two gears, gears of different shapes are put together, gears of different sizes are put together, and gears with different numbers of teeth are put together. I don’t know what kind of connection there is. .

There are approximately nearly a hundred test points, and each test point must have at least thirty different samples. In addition, in order to eliminate chance and reduce errors as much as possible, hundreds of data must be designed for each sample.

After all, in the system of waterwheel - gear - gear - pulverizer, at least 300 different parts need to be made, and the data that needs to be collected is upwards of 600,000.

Li Mengxi stood by the water, confused for a moment.

Six hundred thousand data...

He turned his head and looked at the interested craftsmen who were watching the millstone. "Do you want to learn from me?" Li Mengxi asked.
Chapter completed!