Qin Zhenhua doesn't really care about this appearance. For him, as long as he can solve the three major items well and make this vehicle have excellent performance, it is enough. As for the front of the car, whether the appearance is domineering, and
Not within his consideration.
Of course, he didn't think about it, Sun Mingyuan had to consider it. After all, they knew that whether their vehicle could bid successfully had a lot to do with the appearance. If the car didn't look domineering enough, then it would be easy to
Being rejected.
Over the years, the army has been using off-road trucks from Dongfeng Factory. Those vehicles are pointed. If they are replaced with flat heads, they may not be used to them.
If you want to successfully bid, you have to make a lot of effort. All kinds of issues must be considered. The style of the car is very important.
While Sun Mingyuan was still thinking about these issues, Nie Qianqian spoke aside: "In this appearance, you may consider other international vehicles and put the engine in front, but you can also extend the back part to the cab.
Below, this will reduce the overall length of the front of the car. After all, it is still beneficial to shorter cars. For example, it is like the Mercedes-Benz Unimok u5000 series."
The reason why flat-head trucks became popular is that in addition to the good view, the car was shorter than the long-headed ones, which was more flexible. The engine of the flat-headed truck was under the seat, while the engine of the long-headed truck was in front of the front of the car.
, which is equivalent to an additional engine length.
If you encounter danger, such as impact, then the advantage of a long head can be taken advantage of again. The part that comes into contact is the engine, so the personnel in the cab can have a high chance of survival, flat head cab,
It’s just the driver. If you want the driver to survive, you have to use other methods. For example, the tractor uses the overall rearward movement technology of the cab. If there is a collision, the entire cab will be separated from the chassis.
Transfer backwards for more than one meter to effectively protect the driver's safety. However, that is just a tractor, an ordinary bicycle, with a cargo box behind the cab, and there is no room for translation.
Overall, safety is better, long heads are better. If you want to combine the advantages and disadvantages of the two vehicles, then you might as well have a small long head.
Anyway, the cab can be raised. After the cab is raised, part of the engine can be reduced to the bottom of the cab, which can significantly reduce the length of the front of the car.
Speaking of the excellent off-road vehicles in the world, of course, we must also recommend the Mercedes-Benz Unimok U5000 series. This off-road vehicle, even if it is used in civilian use, has excellent off-road capabilities, first-class performance and expensive prices, many of which are
Design ideas are worthy of research and consideration.
Hearing Nie Qianqian's words, Sun Mingyuan nodded: "Yes, we also like this off-road vehicle. In addition to the layout of the front, it also has a gate-type bridge wheel side reducer, which greatly improves the ground clearance.
If our new vehicle could be designed with this design, that would be great.”
Since you want to use high-end technology, you should just get all the best. This unique wheel-edge reducer is simply specially designed for off-road.
The axle is a component connecting the car and the tires, with steering axles and trailer axles. These have no power, and there are also drive axles that specifically drive vehicles.
The outside of the drive axle is a bridge shell, which is used to bear the weight of the car. The inside is a half-axle and a speed reducer. After the front drive axle transmits power, it is necessary to slow down to reach the wheels, otherwise the speed is too fast and the torque is too small.
The most common one is the single-pole reduction bridge. The power transmitted from the transmission shaft to the axle is only reduced by one level through the main reducer. The structure of this axle is simple. The main reducer consists of an active bevel gear (angle teeth)
Constructed with a driven bevel gear (basin teeth), most trucks use this kind of speed reduction bridge, which is very suitable for standard load transportation on highways. However, its disconnection is also very obvious, which is the center of the axle.
The bulge is too big, which affects the passing of the car. Another type is that the speed reduction ratio is not enough. When a large speed ratio is required, it cannot meet the needs.
In order to reduce the volume of this central bridge bag and further reduce the speed and increase the torque, some designers came up with a way to further reduce the power when the half-axis transmits power and reaches the shaft head, and another set of planetary gears can be used to further
The speed is reduced, which is equivalent to two-stage amplification. Moreover, the volume of the central bridge packet can be reduced and the passability is better. Therefore, this wheel-side reduction bridge is more suitable for heavy-load transportation or off-road transportation.
However, because it is two-stage deceleration, the transmission efficiency is low. At the same time, this wheel-side reducer is prone to overheating. In summer, you can often see a truck driver's own modified brake water, in addition to pouring the brake drum.
In addition, it is also used to pour this shaft head.
As for the gate bridge, it is further improved based on the ordinary wheel edge reducer, and the shaft head is moved from the middle line of the wheel hub to the upper part of the wheel hub. That is to say, the ordinary wheel edge reducer, the wheel center is the half-axle.
The center of the gantry axle is higher than the center of the wheels, which increases the ground clearance of the bridge body and makes the vehicle more passable when driving off-road.
But at the same time, this also means that the structure of this axle is more complex. So far, there is no special gantry axle used by China Card. If you want to do this, it means you still need to go from scratch.
start.
When he heard Sun Mingyuan talk about this project, Qin Zhenhua raised his head and looked at him: "This is the attitude that bidders should have. We must find a way to get those advanced technologies. Your technology cannot be achieved.
, let us develop together. In short, we must reach the world's advanced level."
If you want your vehicle to have such things, there is no other way, you can only rely on your own research!
"This, this seems a bit difficult." Sun Mingyuan said: "After all, we don't have any technical foundation."
After just complimenting him, he actually started to lose his chain again. Qin Zhenhua glanced at him dissatisfiedly, and then said, "What's the difficulty? I bought one, took it apart, and we took it apart, and studied it thoroughly.
If you copy it again, have you forgotten this great copycat spirit?"
Sun Mingyuan swallowed and then said to Qin Zhenhua: "Director Qin, this problem is to buy one, because it is too expensive."
"It's too expensive? How expensive can it be? Is one million not enough? Let's invest together, each of which will cost 500,000." Qin Zhenhua said generously.
Sun Mingyuan was stunned for a while, then said carefully: "Director Qin, that car costs more than four million."