Chapter 101 (1/2)

In fact, the meaning of stone bear is very simple, that is to change the slider directly pulled by human force on this broaching machine into mechanical drive.

The slider on the broaching machine is not small. The reason is to keep the stability of the hook when pulling the hook. Therefore, coupled with the strong friction between the hook knife and the inner wall of the gun barrel and the speed reduction mechanism under the broaching machine, it takes great force to pull the slider.

The key theory is that the small wheel is driven by human power, and then the small wheel drives the big wheel, so as to save labor.

Although this will reduce the speed of rifling, it can greatly save energy.

Although old wood and Ferguson don't understand the principle of reducer, they have met almost the same things in their daily life. So they will soon be able to figure out what the guardian is saying.

”Boss, this method you said is really feasible, but there are still some places I don't understand. For example, if this improvement is adopted, how can the barrel keep rotating during rifling? Also, what shape should our hook knife be made? In addition... ”

With a series of questions raised by Lieutenant Ferguson, Shi Xiong also understood that although they understood the principle of power take-off, they were still far from making such an improved machine tool.

Shi Xiong doesn't really know how to make this broaching machine. He just saw the operation principle of rifling machine in that video. If you ask him to tell you how to make this improved broaching machine, he really doesn't know.

But it doesn't matter. Whether it's Ferguson or old wood, or the rabbit mouth and bone behind Ferguson's buttocks, they are all good at studying. As long as you tell them the principle, and in terms of the studying character of these guys, this improved broaching machine should be made soon.

”Come here, everyone. I'll draw you a general picture.” Stone bear is not ambiguous, directly called a few people to the broach next to.

The slide of broaching machine is very flat, so it is very good to use this slide as a drawing board.

Hard bone took out a piece of coal from his pocket, which was ground into a cylindrical shape, and handed it to the stone bear. This is the ”charcoal pen” he specially ground out according to the stone bear. No way, the tribe is so poor, no charcoal, had to use coal instead.

As a cultural protection expert, Shi Xiong's painting skills are quite good. Even with a ”charcoal pen” polished with coal, he swished down a few strokes, and a simple but well-organized broaching machine appeared on the slide.

This broaching machine looks much more compact than the present hand-made wooden broaching machine. Several wheels of different sizes are in the middle of the broaching machine.