It is naturally best if the project can catch up, but we are not developing it for the sake of this project, we have to consider the needs of the troops! Wang Hongguang is also the best person there, as long as he thinks that his ideas are reasonable, he will definitely fight for them.

"The weapons we made are for the army to fight, although the central bridge transmission can not be said to be unusable, but it is definitely not the most optimal program, we transplanted the entire transmission system directly from the truck, the technical difficulty is low, the risk is small, but this kind of program, has been outdated, now, there are more advanced programs, we should try it, to give the best products to the troops, we are a machine factory, is the strongest military factory in China! We want to come up with a world-class level! ”

When they heard this, Mao Hongpo and Shi Yude were a little stunned, when would they be able to hear such words at the Red Star Electromechanical Factory? The eyes of the big guys, staring at the welfare, are all treatment issues, no one is willing to delve into the technical details, can be used, enough is good, who would think about the army, the development of more advanced products, even if the performance improvement is not very big, as long as there is an improvement, to try?

After arriving at a machine factory, they have changed a lot!

"We use a central axle drive, which is to be able to use mature automotive components, but there are a lot of inappropriate design solutions." Pointing to this model, Wang Hongguang began a serious analysis: "First of all, the first disadvantage is that it causes the floor of our wheeled armored vehicle to be too high, because the huge central drive shaft must be under the bottom plate. ”

The layout of the power system of a wheeled armored vehicle also has an important impact on maneuverability.

For example, from the perspective of the center of gravity, it is most appropriate to arrange the engine in the middle, the front and rear propeller shafts are the same length, and the power output loss is small.

The Hummer follows this design scheme, with the engine in the center, and at the same time, some high-performance sports cars use a similar scheme.

However, armored vehicles have more to think about.

In the early days, armored vehicles were mainly used for reconnaissance and in-depth assault missions, with only three or four members, and most of the engines of armored vehicles at this time were rear-mounted, just like tanks, so that the driver and turret could be as close as possible to the front of the vehicle, which was convenient for observation and combat.

But now, armored vehicles are mainly carried by infantry, and for the convenience of infantry up and down, and even fighting by car, at this time, the armored car is required to have a special tailgate at the tail, and it can be flexibly deformed, so the armored car at this time adopts the normal car layout, the engine is in the front, leaving the precious space behind.

The front engine is already a design necessity, so how does the power transfer to the rear wheels?

Now, two-axle, three-axle, is not a lot, and in order to improve the ability to pass on harsh terrain and improve off-road ability, vehicles tend to increase the number of wheels, and the transmission system requires a longer drive shaft.

Just on the existing armored car, the power output from the engine, along the longitudinal propeller shaft, located under the middle of the hull, went backwards and ran all the way through.

This is the longitudinal transmission of power, every time to an axle, there is a special conical tooth, the power is turned sideways, output to the transmission shaft, at the same time, there must be a special supporting differential, together constitute an encapsulated tooth bag.

These devices, are volumetric, deployed in the lower middle of the vehicle, and in order to improve the off-road ability of the vehicle, these devices are also the higher the better, and in this way, the overall height of the car has come up, which not only increases the bomb area, but also affects the high-speed mobility of the vehicle, the center of gravity is high, and it is easy to overturn.

The height was lowered, and the volume inside the compartment could not go up again.

On two and three axles, it may not be reflected yet, but on four axles, the body is longer, then, in principle, these are higher.

At this time, how to change?

Foreign countries have begun to abandon the central axle transmission system, completely abandon the drive scheme transplanted from the car, and adopt a new H-shaped transmission system.

The previous drivetrain, based on its appearance, could be called a T-shaped drive, which passed vertically and passed horizontally to the tires, but what about this H-shape?

H has two verticals, that is, it has two longitudinal propeller shafts! Moreover, the two verticals of this H are on both sides, that is, the two drive shafts are not deployed in the center of the car body, but are deployed on both sides of the car body, so that the middle position is all vacant!

"After increasing to the four-shaft drive, the H-shaped transmission should be the most qualified solution, which frees up the space in the middle of the hull, which can reduce the height of the floor of our armored car, so that the interior space of the armored car is larger, and at the same time, the space occupied by this transmission shaft will not be wasted, because it is exactly the position of the two rows of seats on both sides."

The position on both sides is not used at all, it happens to be the place of the seat, and the part of the space under the seat is used to install the drive shaft, so that the whole problem is solved.

The engine is still deployed in front of the car body, and then, after passing through the gearbox, it is directly transmitted to both sides of the car body, some similar to the engine of a car, and two transmission shafts are directly stretched out horizontally to both sides, which is the middle of the H, of course, it should be the top of H, and then, along the longitudinal two transmission shafts, until the end.

To say that its advantages, of course, are too much, the mechanical structure is simplified, although a longitudinal transmission shaft is added, but there are three sets of transverse transmission shafts missing, and the differential can be directly connected to the wheels through the bevel transmission gear and cardan shaft.

"In this way, the bottom deck of the car body is flattened, which facilitates flexible load arrangement; The wheels on each side of the vehicle are directly connected together, and the loss of all torque of the wheels rarely occurs when driving off-road, thus reducing the number of times the differential is locked; Most of the drivetrain components are installed on the outside of the car body for easy maintenance; Even, in the future, brakes can be added to the power take-off end of the transverse gearbox to achieve the steering function of the tank. Speaking of which, Wang Hongguang's eyes lit up, there are too many benefits, and a new generation of wheeled armored vehicles abroad are developing this technology!

"Yes, you're right, but we don't have any technical reserves." Yang Zicheng said: "In this way, the time for research and development will be extended, not to mention the military parade in 8*9 years, 94 years, or even the military parade in 99 years, may not be able to be made." ”