Shulou(Shulou.com)11/24 Report--

The original title: "is the speed reducer anti-human design?" Eat soft do not eat hard speed reducer, you slow it soft, you fast it hard, what principle? "

The editor still clearly remembers that when he first got his driver's license, he did not see the speed reducer and passed with such a foot throttle. Don't mention the feeling, it's more exciting than riding a roller coaster, and then the whole person is not good, and it's called an affliction. In a word, if the speed passes through the speed reducer, the shock is greater than the pain.

30 kilometers per hour through the speed reducer.

We see obvious front and rear wheels.

There was an obvious beat.

This feeling is very bad.

I feel that the grip of the car is not enough and it is getting out of control.

That's what speed bumps are for.

Make you scared, take the initiative to slow down

Anyway,

Let's have a good talk about speed bumps today.

First of all, some netizens said so.

Speed bumps are anti-human.

What I had for breakfast.

Let the speed bumps pop out on the way to work.

It's already that congested.

And specially brake over the speed reducer.

Just cancel it, okay?

This view is absolutely wrong. The speed reducer has been invented since it was invented, and we do not know how many lives will be saved every year. More scientific statistics show that if the design of the speed reducer is relatively correct and the location is just right, the speed reducer can reduce 85% of vehicles to the speed of 1020 km / h, the accident rate can be reduced by 60%, and the number of accident casualties can be reduced by 50% to 70%.

Even if the car is injured in the speed bump, the driving experience is not good, but compared with reducing traffic accidents, there is no need to say more about which is more serious, so it is impossible to cancel.

Speed bumps are everywhere on urban roads, and they are not "Chinese characteristics". They are widely used all over the world, and it is currently the only device that can actively limit the speed of vehicles.

Don't we have the word "see you for a long time"?

What road didn't the old driver run?

I've seen a lot of natural speed reducers.

As a matter of fact, there is a lot of access in the speed reducer.

The most obvious is that the application is different in different occasions. This kind of soft rubber speed reducer is common in the school gate, in front of important buildings, in units and residential areas. This kind of speed reducer is also most often used in conjunction with access control. It is shock absorbent, has a relatively long life, and has less wear and tear on cars and relatively less noise. After all, in such a place where the flow of people is very large, it is not very good for you to change the speed reducer all the time.

There is also a kind of speed reducer that we often see, that is, a particularly "unfriendly" steel speed reducer. This kind of speed reducer is made of special steel. The specification is 250*350*50mm, that is, one size larger than our ordinary speed reducer, but its load bearing capacity is more than 200t. Highways, gas stations, urban junctions, toll stations and other places that need frequent access to heavy vehicles will be used. Basically, the service life is 5-10 times longer than that of the rubber deceleration pad.

The white concussion marking often laid on the highway is actually a kind of speed reducer. When marking, epoxy resin and polyethylene wax are specially used to make regular concave and convex surfaces, so that when passing by, the wheels resonate. Mention the purpose of warning deceleration.

Of course, these can only be regarded as "standard"

In foreign countries, some people have designed a

Using "non-Newtonian fluids"

To make a new type of speed reducer for urban use

Put non-Newtonian fluid in a soft deceleration zone

Reinforce the road surface by periphery

This kind of speed reducer when you press it gently.

It's soft, and it doesn't have much impact.

But when you pass at high speed

It will become incredibly hard.

The editor always thinks that foreign things are not necessarily.

Applicable in China

The complexity of roads in China

That foreigners can't imagine.

Do you think this kind of speed bump is popular or not?

All right, after watching Gao Lig.

We still have to face another Chinese artifact.

"cement pier deceleration zone"

The editor can no longer complain.

It's like the handle of the speed bump.

Can be wide or narrow

Can be high or low

It's impossible to guard against!

Everything is not once and for all, it will be damaged after a long time, I believe everyone has encountered rotten speed bumps, if it is completely destroyed, except for a ditch, there is really nothing else.

The biggest headache is that the rubber block of the speed reducer is gone, and the nail in the middle of the road is still there. I'll be damned. Basically, apart from the tank, no car dares to pass, and the most exasperating thing is that sometimes there are only one or two. You still can't see it. When you encounter this, you probably admit to being unlucky and turn left to repair the tire 500 meters ahead.

How to get through the speed bump is the right posture.

Speaking of which, this is the place

"the eight Immortals show their magical powers across the sea."

How do you guys live?

Sideways? Unilateral? Or vertical?

Some people drive when they encounter a speed reducer and will tilt it when conditions permit, because the four wheels pass through the speed reducer in turn, so they think it will be much easier. In fact, in addition to allowing you to change a new set of shock absorbers earlier, there is really no use at all. The shock absorbers of each wheel have to bear the quality of the car one by one, and think about how much damage the car is.

Because the speed reducer is not completely covered on the road, some people like to "make use of all available space" to pass the speed reducer on one side and drive on the normal flat road on the other, but they do not realize that for such a long time, the force direction of the car is not uniform. it will affect the four-wheel positioning will gradually develop into driving deviation such a serious thing.

In driving school, we learned how to pass the speed reducer. In fact, it is the most correct way for the two wheels to go up together. Manufacturers have conducted shock absorber training when the car leaves the factory. When we drive at a speed of 20 kilometers per hour through the speed reducer, the simultaneous force of the two wheels can cushion this part of the energy to the maximum, and it will not have much impact on the car.

Say one thousand and ten thousand

Whatever is linked to safety.

We should all keep that in mind.

Go out happily

Go home safe and sound

That's the promise we need to keep in mind.

This article comes from the official account of Wechat: manufacturing principle (ID:zhizaoyuanli), author: manufacturing principle

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