Chapter 2152

The car was towed back to the garage.

The whole car has completely got rid of the traces of the former Steyr heavy truck, and the whole cab looks quite modern. It can be said that this heavy truck is a fist product for the heavy truck industry of Han country to go abroad and go to the world.

When can we really become a big country? Of course, it is to let Han manufacturing fill the world. Only when the industry is strong, it is really strong. Now, our side is moving forward step by step on this road.

After entering the garage, he ribala personally opened the front turnover mechanism, and then pressed the button. The cab was turned over under the sound of the motor.

The flat head heavy truck and the engine are under the buttocks. In this way, if you want to repair the engine, you need to lift the cab. At the beginning, the cab is fixed. This design makes maintenance difficult, and you even need to remove the whole cab.

Later, the cab was designed to be able to turn over. By turning the cab forward, we can make room for it. Of course, this will also increase the complexity of the machinery.

In addition to designing the front articulated mechanism, you also need to put on a jack, support a stick on the rear hydraulic pump, and turn the cab down and down. In a common saying, this is called a basket.

If the engine often needs maintenance, it is definitely a hard work. Therefore, for the convenience of users, a new device, electric turnover mechanism, is designed here. As long as the button is pressed, the motor can turn the cab over.

Qin Guan gave a thumbs up to this design. Yes, if our heavy truck wants to be high-end, we must think for the sake of customers. In this regard, we have come to the front.

In fact, if there is only a problem with the gearbox, there is no need to start the cab. After all, the engine is under the cab and the gearbox is behind. For this kind of tractor, it is directly exposed to the outside. However, if you want to repair, it is more convenient to fight like this. Besides, it doesn't take much time.

Hold it up and lock it. Several engineers went up and began to remove the clutch. At this time, there was a smell of burnt paste in it.

"Sure enough, it's burned," said an engineer. From the inside of the side seam, he pulled it with a crowbar, and the clutch plate didn't move.

The engine is always rotating, but the wheel is not. Therefore, in the power transmission, there is a mechanism that needs to cut off and combine the power at any time. This is the clutch. Of course, in at's automatic transmission car, the clutch components are replaced by the hydraulic torque converter.

For a double clutch car, if it goes and stops for a long time and the clutch keeps contacting and separating, the clutch will be burned and serious accidents will occur. In order to solve this problem, the engineer adopts the method of soaking the clutch plate in liquid for heat dissipation. This is wet double clutch, which is a relatively stable solution.

This kind of heavy truck cannot be used in this way. It needs to transmit too much power, and the clutch plate is also huge. If it is all soaked in oil and the weight is too large, in fact, it directly uses the original clutch, but it is equipped with a pneumatic thrust device to replace people's left foot in a manual car, The left foot is used to control the clutch.

The principle is very simple, but the operation is complicated. For example, when using human feet, there is a very special operation, that is, semi clutch. When the clutch plate starts to combine from separation, the action needs to be slow, and the softer the better. If the car is not very obvious, for the heavy truck, if the action cannot be slow, It's impossible to start at all. When some car drivers go to drive large trucks, they can't drive at all. That's why.

Human operation can go through repeated training, and what about this system?

The system is not as smart as people.

The clutch of the heavy truck is very heavy, and the compression spring on the heavy truck is very elastic. On the heavy truck, the clutch is also assisted. Now, it has been replaced by pneumatic operation.

This air pressure operation is very special. You can either not move or brush it all at once. The same is true for driving heavy trucks. When braking, you can either not step on it or step on it. You must not step on half like driving a car. Otherwise, the compressed air in the brake will be released all the time. It won't be long before there is no air in it.

This thing is too violent. Therefore, when pushing the clutch, it either doesn't move or goes up all at once. When it is reflected in the operation, it is a serious setback. It is only an empty car. If it is overloaded, it is a nightmare. He Ri Bala watched a group of engineers begin to disassemble the car and began to introduce it to Qin Guan. This is the situation now.

Listening to he ribala's introduction, Qin Guan also generally understood that how to overcome this technical problem? This is very simple. Go into the cemetery to find information.

There are no civilian vehicles. There are military vehicles. With the continuous development of military vehicles, this AMT transmission has begun to be popularized. There are also military vehicles. Therefore, when we studied how to solve it, Qin Guan quickly entered the system and found a copy of the data in the system.

How? It's very simple. It's gas pushing oil.

If you want to directly use compressed air, it is very direct. You can either not move or combine it all at once. In contrast, the hydraulic pressure is very mild. Therefore, this AMT heavy truck gearbox does not directly use air pressure to combine and separate, but uses air pressure to act on the hydraulic oil to provide pressure for the hydraulic oil, and then use the hydraulic oil to promote the clutch operation, coupled with reasonable adjustment, Just came out.

"I have some materials here that you can study." Qin Guan motioned to the scholar. There are more materials in the scholar's box, not only the design of the clutch, but also the data adjustment of some gearbox behind. With it, it is naturally easier.

When the engineers got these materials, they were very excited. President Qin really solved the problem. Why didn't they think they could change this idea? In this way, the clutch can be more stable!

And the adjustment of the gearbox and the shift logic are also very important. President Qin solved the big problem at once!

Wait, why is there another sensor here? What's this for? Don't bother Mr. Qin. Do your own research. Yes, this is the attitude sensor used when going uphill. Yes, these ideas to solve the problem are very correct!