When it comes to off-road vehicles, a must-have indicator is how many locks are there.
What is a lock?
When the vehicle is driving in a straight line, the distance between the left and right sides is the same, and the rotation between the two sides is the same fast, but when turning, it is different. The distance between the outer wheels is longer. If one wheel on both sides is used
If the shaft is connected, the car will not be able to turn.
Therefore, the vehicle has two axes, which are connected by a differential, a large gear, and a transmission shaft to transmit power.
When driving in a straight line, both sides turn at the same time. When turning, the inner side is subject to resistance and stop turning. The rotation is handed over to the outside side to complete the turning task.
This is beneficial and necessary, but in some cases it will have a counterproductive effect.
When the car falls into a pit? At this time, the wheel that has not fallen on the other side needs to work hard. However, due to the differential, the falling wheel has little resistance, so it starts to rotate wildly.
Stop and dig the pit, while the wheels that were supposed to play on the ground on the other side stopped turning, just waited there to sink deeper and deeper.
This is very similar to the multi-core processor of a mobile phone. Originally, there were too many cores and it was necessary to play a role, but what was it actually? In the case of one core, eight cores were watching, and just watching a core running wildly.
At this time, the differential can no longer work. The half-axis on both sides must be connected together to allow the wheel that is still watching to play a role. This is the differential lock.
The differential lock between wheels is to shrink the wheels on both sides to maintain the synchronous speed, while the differential lock between shafts is to maintain the synchronous speed between the front and rear axles. Once one shaft falls down, the other shaft can still play a role.
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Many off-road enthusiasts are content with their car having three locks and promote themselves as real off-road vehicles. What are those SUVs?
In fact, this is a must-have for large trucks.
The axles of large trucks are equipped with differential locks, otherwise, their ability to escape will be greatly limited. If you buy a large truck's front to play off-road, more than 300,000 yuan is better than 500,000 yuan.
The Wrangler, a one-million-mercedes-Benz G is still awesome.
If you still think it is expensive, buying a tractor for 100,000 yuan is definitely better than those professional off-road vehicles.
Ahem, I've said too much.
One important difference between the rear axle of Mercedes-Benz heavy truck and the rear axle of Steyr heavy truck is the differential lock!
Steyer Bridge is a relatively traditional vehicle axle. After entering the Eastern Power, it soon bloomed everywhere, so that an agricultural vehicle started to use the Steyer rear axle in order to grab the car business.
In terms of design and technical structure, this rear axle contains external differential lock, wheel edge deceleration and central first-level deceleration. This rear axle has been used for decades, and its technology is very mature and its accessories are very cheap.
The market penetration rate of major countries is very high
The Mercedes-Benz rear axle is also a wheel-side reduction bridge. The design structure includes a built-in differential lock and a reinforced differential, and the thickness of the axle shell is thickened and the load-bearing capacity is stronger.
Yes, the biggest difference between the two is that one is an external differential lock and the other is a built-in differential lock, which constitutes an appearance difference.
The axles are similar, so just find a set of axles and survey and map them. The key is the material and processing accuracy!
Not to mention, the planetary gear set on the shaft head requires high-strength steel, otherwise it will break in a few months. If the processing accuracy is not enough, a lot of it will be worn out after use.
Iron filings increase wear and increase noise during operation.
These are not a problem in a single machine factory. High-strength steel can be pressed on a 10,000-ton hydraulic press. The quality has been improved by several levels and the processing accuracy is fully achieved.
accuracy.
For this wheeled armored vehicle, the main technical difficulty that the first machine factory overcomes is its axle!
After all, you have specialized in your career. Under the current circumstances, as long as you overcome the technology of the axle, all problems will be solved. If you can buy other things from outside, you can buy them first, and then slowly improve your own domestic production.
ability.
After all, Rome was not built in one day, and it is impossible for one to become a fat man in one bite.
Qin Zhenhua introduced it to everyone. When everyone heard that the technology of this axle reached the level of Mercedes-Benz heavy trucks, they were very interested.
Then, he went in through the back door and continued to look at the equipment inside, while also listening to Qin Zhenhua's introduction.
As a wheeled armored vehicle, of course, it must adopt a fully enclosed body, and the internal use of an overpressure semi-automatic collective three-defense system. After all, it must have combat capabilities under nuclear and biochemical conditions.
The interior of the car body is very traditional, divided into three parts: cockpit, power cabin and combat cabin. The cockpit is located in the front of the car body and can be viewed through the two bulletproof glass windows in front. In the high-intensity area, the front can also be closed.
The armor plate is observed through a periscope, and is equipped with observation instruments, detection instruments, radio stations, commander and driver seats, and three-proof fire extinguishing control boxes.
The power cabin is located in the middle left of the vehicle body and behind the cockpit. This layout is actually no different from a heavy truck. The entire chassis is arranged according to the heavy truck plan.
The combat compartment is located behind the power compartment, with the largest space, with crew seats on both sides. There are spherical shooting holes for crew members to shoot in the car on both sides. At the same time, there is a turret on it.
Because of the haste, no brand new turret was developed. It was just a simple turret, and only a 12.7mm machine gun was installed as a weapon.
As long as the chassis is created, the rest can be refined later. Moreover, we can't remember what the troops need, so we will add anything.
At the same time, in order to have the ability to navigate on water, a conduit propeller propulsion device with a combination of rudders is used on both sides of the rear of the vehicle body. It has a simple structure, light handling and high water thrust. At the same time, there is also a special electric drainage pump inside the vehicle body.
It is difficult to ensure that the armored vehicle is fully sealed and does not leak water, so the method used is to use it that it doesn’t matter if the water inflows, just drain all the water inflows, and a solid water soaking truck is used.
Everyone listened very seriously. After all, the procurement and use of tracked vehicles are high. If the troops want to transform into mechanized troops, the demand for wheeled infantry fighting vehicles will probably far exceed that of tracked infantry warfare.
car.
Yimai Factory really can seize the opportunity. They will build whatever the troops need.