"It is naturally the best thing to catch up with the project, but we are not developing it for this project. What we have to consider is the needs of the troops!" Wang Hongguang was also taking charge of it, as long as he thought his ideas were reasonable.
, then you will definitely fight for it.
"The weapons we built are for the army to fight. Although using central bridge transmission cannot be said to be useless, it is definitely not the optimal solution. The complete transmission system we transplanted directly from the truck is of low technical difficulty and risky
Small, but this kind of solution is already out of date. Now, there are more advanced solutions. We should try it out and give the best products to the army. We are a one-machine factory and the strongest military factory in China! We want to get it
Come out of the world-class level!”
When they heard this, Mao Hongpo and Shi Yude were a little surprised. At the Hongxing Electrical Plant, when could they hear such words? Everyone's eyes were all about welfare and treatment issues. No one was willing to be there.
Study the technical details, use it if you can, and use it as long as you can. Who would think of developing more advanced products for the sake of the army? Even if the performance improvement is not very large, try it as long as there is improvement?
After arriving at the First Machine Factory, they changed a lot!
"We use central bridge transmission, which is to use mature automotive parts, but there are many inappropriate aspects in this design." Pointing to this model, Wang Hongguang began to analyze carefully: "First of all,"
The first disadvantage is that it causes the floor of our wheeled armored vehicles to be too high, because the huge central drive shaft must be under the bottom plate of the vehicle.”
The layout of the power system of the wheeled armored vehicle also has an important impact on the maneuverability.
For example, from the perspective of center of gravity, it is most appropriate to arrange the engine in the middle, with the same length of the front and rear transmission shafts, and the loss of power output is small.
The Hummer was carried out according to this design scheme, with the engine in the center, and some high-performance sports cars also adopted a similar scheme.
However, there are more things to consider for armored vehicles.
In the early days, armored vehicles were mainly used for reconnaissance and depth assault missions, with only three or four members. At this time, most of the engines of armored vehicles were rear-mounted, just like tanks, so that the driver and turret could be as close to the front of the vehicle as possible, making it convenient.
Observe and fight.
But now, armored vehicles are mainly equipped with infantry, and for the convenience of infantry going up and down, they even fight by car. At this time, armored vehicles are required to have special tailgate at the rear and can be flexibly deformed. Therefore, armored vehicles at this time, all
The normal car layout is adopted, with the engine at the front, leaving precious space behind.
The front of the engine is already an inevitable design solution. So, how can the power be transmitted to the rear wheels?
Now, there are many two-axis and three-axis. In order to improve the traffic capacity on harsh terrain and improve off-road capabilities, vehicles tend to increase the number of wheels and transmission systems, which require longer transmission shafts.
On the existing armored vehicles, the power output from the engine is located along the longitudinal transmission shaft, below the middle of the vehicle body, and runs through the rear.
This is a longitudinal transmission of power. Every time you reach an axle, there is a special conical basin tooth that passes the power across and outputs it to the transmission shaft. At the same time, there must be a special matching differential, which together form the
A packaged tooth bag.
These devices are all bulky and are deployed in the middle of the vehicle. In order to improve the off-road capability of the vehicle, the higher the better. In this way, the overall height of the vehicle increases, which not only increases the area of the bombardment
, which also affects the high-speed maneuverability of the vehicle, with a high center of gravity, which makes it easy to overturn.
The height is lowered, and the volume inside the car cannot be raised.
On two axles and three axles, it may not be reflected, but on four axles, the body is longer, so in principle, these will be higher.
How to change at this time?
Foreign countries have begun to abandon the central bridge transmission system, completely abandoning this kind of driving solution transplanted by automobiles, and instead adopting a new H-type transmission system.
The previous transmission system, based on its appearance, could be called a T-shaped transmission, which was vertically transmitted to the tires horizontally. What about this H-shaped?
H has two vertical shafts, that is, it has two longitudinal transmission shafts! Moreover, the two vertical shafts of this H are on both sides, that is, the two transmission shafts are not deployed in the center of the vehicle body.
, but was deployed on both sides of the vehicle body, so that all the positions in the middle will be empty!
"After adding to four-axis drive, the H-type transmission should be the most qualified solution. It releases the space in the middle of the vehicle body, which can lower the height of the bottom plate of our armored vehicle, so that the interior of the armored vehicle can be
The space is larger, and at the same time, the space occupied by this transmission shaft will not be wasted, because it happens to be the position of the two rows of seats on both sides."
The positions on both sides are not used at all. They happen to be the seats, and the space under the seats is used to install the transmission shaft. In this way, the entire problem will be solved.
The engine is still deployed in front of the vehicle body, and then, after passing through the gearbox, it is directly driven to both sides of the vehicle body. It is similar to the engine of a car, and two transmission shafts extend horizontally to both sides. This is the middle of the H.
The horizontal, of course, should be the top of H, and then, along the two drive shafts in the longitudinal direction, it will be transmitted to the end.
To talk about its advantages, of course there are too many, which simplifies the mechanical structure. Although a longitudinal transmission shaft is added, three groups of transverse transmission shafts are missing. The differential passes through conical transmission gears and universal shafts.
It can be connected directly to the wheels.
"In this way, the bottom deck of the vehicle body is flat, which is conducive to flexible load arrangement; the wheels on each side of the vehicle are directly connected together, and the wheels rarely lose all torque during off-road driving, thus reducing the number of times the differential lock is used.
;Most transmission system components are installed outside the vehicle body for easy maintenance; and even, brakes can be installed at the power output end of the transverse transmission box in the future to realize the steering function of the tank." Speaking of this, Wang Hongguang's eyes shine, which is beneficial
There are too many, and the new generation of wheeled armored vehicles abroad are developing this technology!
"That's right, you're right, but we don't have any technical reserves." Yang Zicheng said: "In this way, the research and development time will be longer, not to mention the 8*9 military parade, 94 years, or even
It was a military parade in 1999, and it may not be possible."