Technology and life: starting with solar cars

Chapter 101 Mech Walking Simulation

Because the ball-shaped wheels are left-right symmetrical, there is no need to rotate when changing the direction. You only need to let the round wheels rotate with the turntable under the mech.

And the flat round wheel may be a little deformed due to too much force and unable to bear the pressure.

A car for family use generally weighs one or two tons, and one ton is 1000KG, which is equivalent to 2000 catties, which is not an easy and small amount.

To bear the weight of 2000 catties, it is better not to use flat round wheels as much as possible. The wheels of Mecha 1.0 are on the bottom. The difference from the car is that the tires of the car are on both sides of the car, so the Mecha 1.0 is made Always give priority to round wheels.

There is no doubt that the material of the round wheel is steel, 304 or other relatively wear-resistant steel, but you can’t choose plastic materials, because you are afraid that when you use plastic as a pulley, the pulley will suddenly break while driving, and the mech is not direct. Ruined.

It is also possible to use copper, which is also quite wear-resistant, but the price of steel and copper is almost the same, so it is better to choose steel.

As for the turntable that fixes the small balls, it is natural to use stronger materials. The hardness of the turntable must even exceed the hardness of the small balls, so that it can better withstand the reaction force brought by the small balls.

Both the turntable and the small balls under the turntable must be made of wear-resistant steel or other wear-resistant and high-hardness materials.

Wear resistance is a must, and the hardness of the material is also necessary. After all, it has to bear a vertical pressure of one or two tons, which is greater than the pressure on the tire bearing of a car. If the hardness of the material is too low, it is easy to be squeezed and deformed. up.

The turntable is connected to the control rod through the connecting rod. The design method of hydraulic power steering can make the control rod very easy to control the turntable to turn in any direction, which can save a lot of effort. If it is turned by manpower, it can only be said Arrogant, the turntable is pressed down by one or two tons of material, you can imagine how much pressure the turntable is under, if you don't use the hydraulic lever to steer, it's just manual steering, so it can be said to be wishful thinking.You don't need to turn it many times, just turn the direction once with your hands and you will basically lose your strength.

That feeling is almost the same as the power steering of a car is broken. If the power steering of a car is broken, the only person who can steer when the power steering of a car is broken is a strong man.It can be said that without hydraulic power steering, it is very, very difficult. After all, mechas and cars are not tools with no load like electric vehicles. Naturally, mechas cannot achieve direction control through easy manual movements.

The design here can be said to be a complete imitation of the car design. The two mechanical legs of Mecha 1.0 are connected together through connecting rods, so that the two mechanical legs of Mecha 1.0 can move towards the same direction. direction to turn.Otherwise, if one of the mechanical legs moves to the left and the other to the right, the Mecha 1.0 will split the fork soon, and soon the Mecha 1.0 will break the mechanical leg because the split is too strong.

Therefore, before the mecha reaches version 2.0, the left and right legs of the mecha must move in the same direction to avoid damage to the mechanical parts caused by the different directions of the left and right legs.

The left leg and the right leg are connected together through a connecting rod, but in order to be more beautiful, the connecting rod connecting the left leg and the right leg must be hidden and connected together through the inside of the mecha, and the connecting rod is placed on the side of the mecha 1.0 Inside, the reverse regulation of the two turntables of the mecha is integrated through the middle part of the mecha.

Such a hidden connection method can not only make the mecha more beautiful, but also allow people inside the mecha to easily control the direction of the two feet of the mecha 1.0, which is very easy and easy to use.

The joystick that controls the direction is still pretty good-looking, and it feels more beautiful and stylish than the steering wheel-style control method.

To put it bluntly, the 1.0 version of the mecha is intended to be used as a vehicle such as a car, and provides a wealth of experience for the future production of the 2.0 version of the mecha.

The two wheels are constantly changing direction under the control of the joystick, but for the sake of aesthetic design, the mecha walks in tandem and one behind the other, as I mentioned earlier.

How to explain this statement, for example, the Mecha 1.0 is running on the road, and the Mecha 1.0 version at this time is not simply connected together by a hidden bearing.

Instead, the gear driven by electricity continuously realizes the movement of the mechanical left leg or the mechanical right leg.After the mechanical left leg runs for a second or two, the mechanical left leg stops the small ball on the turntable that is being driven below.At this time, the right leg of the Mecha version 1.0 starts to be driven forward. At this time, the position of the right leg exceeds the left leg that has no driving force, causing the position of the right leg to exceed the position of the left leg.

After the position of the right leg exceeds the position of the left leg, the right leg of the mech stops after running for a second or two like the left leg, and continues to give it a mechanical force to move forward. The movement of the right leg stops, giving the left leg The driving force of the leg makes the left leg go forward, which causes the position of the left leg to continue to surpass the right leg.

In this way, the left leg and the right leg stop and drive alternately, which will cause a phenomenon in which the left and right legs continue to walk like a human being.

这是为了为机甲2.0版本提供一种设计的方法，毕竟机甲2.0的版本不可能再像机甲1.0那样有那么LOW的轮子设计了。机甲1.0版本就是为了给机甲2.0版本做经验的。

At the same time, the purpose of mechs is to make mechas imitate human actions and behaviors. Therefore, the production of mechas 1.0 must imitate people and cars. Simply imitating cars is not enough, because mechas The purpose is to realize human-like actions and complete various actions like human beings.

To put it simply, the purpose of the mecha is to realize the will of people. To put it bluntly, the mecha is an enlarged giant. The design of the mecha must be close to people.

The purpose of the mecha design is to realize the imitation of human beings, and the design method of the mecha needs to learn from the various mechanical design directions of the car, and use the various mechanical design directions of the car to realize the various movements and behaviors of the human body. imitate.

This is the meaning of the real research and development of mechs.

The change of the crossing position of the mechanical left leg and the mechanical right leg makes the mech more human-like. This is to use the mecha to imitate the human walking action, which can make the mecha anthropomorphic.

Everything is difficult at the beginning. The design of mechs not only needs to simulate the behavior of human walking, but also imitates various complex movements of humans such as raising hands and clenching fists. Therefore, the design of mechas still has a long way to go. .

It cannot be achieved simply by thinking about it.

Fortunately, the problem of walking has been solved now.

(End of this chapter)