Locking diffs on the "Field": electrical, pneumatic, mechanical

In the SUV, and “field” is an SUV, giving a differential torque from the transfer case to the axles of the wheels and the wheels themselves. The frequency with which the wheels rotate, can change. If the mechanism is free, in the case of slipping of one wheel to another will be filed with an insufficient amount of torque. The difficult part is sometimes hard to control the car. To help lovers of off-road comes the differential lock. On “Field”, you can block cross-axle differential. This will dramatically increase the traffic.

Forces

Diffs often have a planetary design. It is a worm gear type. They can be of two types – the gear axes or led and driving gears or satellites.

Leading gear can be placed parallel or perpendicular to the axles. To lock the differential in manual and automatic mode. In this case, using self-locking system.

Types

There are several types of locks. Thus, in the nodes in the differential are connected to a very rigid manner, and the rotational energy will be given to the fact of the wheels, which grip better. There is also an incomplete forced transverse differential lock. “field” allows to limit the impact on the details of the mechanism and torque will increase on the wheel with better traction.

The Element is blocked in the following way. The body is connected with one of the axes, and the motion of the satellites is limited. With the help of push lock is provided do full wheel lock to one axis.

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It is necessary to ensure that the machine could pass through very hard and difficult areas. The Drive mechanism may be mechanical, electrical or pneumatic. For example, the use of a dog coupling allows to combine body movement with the axle shaft.

Until the driver turned on the system, the mechanism is in its normal mode of operation. When it turns on, the torque will be evenly distributed in each semiaxis.

Forms of forced systems

Type of drive there are several types of mechanisms. So, today, installed a pneumatic differential lock on “Field”, mechanical systems and electrical. You can also select a self-locking device.

In mechanical systems the control is performed by means of a cable, the pneumatic force is used with compressed air, electric motor lock controls.

Self-locking mechanisms

Automatic differential lock on “Field” is not uncommon. These mechanisms are used widely by lovers of off-road, drive through the mud and swamps. The locking process is carried out through a limited slip differential.

This device allows fully automatic block element at a time. This is something between a full locking differential in free position. With such systems it is possible to realize both the first and the second.

Two groups of limited-slip differentials

The First – those devices, which takes place depending on the difference in angular velocities of the axes. This disk mechanisms, devices on a viscous coupling, mechanisms with electronic lock.

In the second group the mechanisms that are blocked based on the difference in torque. This worm differentials – popular mechanical differential lock on “Field”.

Friction

It is not that other, as a symmetric system, with special wheels. A Few of them the hard way connected with the body of the host. The rest of the discs connected to the axle shafts. This system operates on the friction force resulting from the difference in the rotational speed of the axles. If the rotation speed of one of the wheels above, some drives will also increase the frequency or speed. Fractional differential lock on “Field” will occur because the friction forces between these elements. On the free wheel will increase torque.

Differential with viscous coupling

It is perforated discs in a sealed enclosure which is filled with liquid silicone-based. Part connects with the body, remaining attached to the drive shaft. When the speed of the shaft and differential are about the same, the elements rotate together. If the shaft rotates faster, the disks that correspond to it, are also gaining speed. The liquid is mixed and hardens. As a result, the differential locks. Now the car “field” 4x4 differential lock such a plan is not very popular.

Worm

This device also promotes the automatic process. Differential lock depending on the difference in torque the axle shaft and the housing. If onethe wheel will slip, then torque it drops and locks will occur. Level corresponds to the degree of lowering of the torque. These mechanisms are popular with owners “Neve” and fans of the aggressive off-road riding.

You can find products from the company «Tree racing”. These mechanisms are getting good reviews from all those who had them to use. Such a system can be installed in the front axle on all classical models of VAZ, as well as on “Field” 4x4.

A New, redesigned line of locks from “Tree racing” is a full cross-axle lock for front axles, equipped with electric drive. You can enable it when necessary to the driver.

System “Simbat”

This electric differential lock (“field” goes with her very well). To use simply one button, the car should move at speeds of up to 5 kilometers per hour. Upon reaching 30 kilometers per hour, the lock will turn off automatically.

DUCK – automatic differential Krasikova

This mechanism is built according to the planetary principle. The role of satellites is given to the ball chains. Under normal conditions, the balls moving through the channels and distribute torque to the wheels equally. If the wheels have a different resistance, the chains are closed and the differential is locked.

Does the system not DUCK on the difference of angular velocities, and the difference of the load on the wheels. Suitable for most models, including the car “Niva-21214”. The differential lock of this type is set exclusively to the front axle of the SUV.

Locking for «the Fields»

The company offers system "Larryt" and "Locke" for cars “field”. The design of the mechanisms is very simple, and hence very reliable. Device – two side and two spacer couplings, pins and springs. The differential lock on “Field” at the expense of torque, or due to rolling resistance. System "Locke" is a 100-percent result. For front-wheel-drive is recommended to buy "Locke" of the slot 22 with the diameter of the coupling axle 34 mm, rear – also in 22 slot, but with a diameter of 36 mm.

AutoFlame - pneumatic differential lock on “Field”

This amplified differential for front and rear axle. It has 4 satellite. Lock forced type with pneumatic drive.

Among the advantages of pneumatic actuators – compact. The entire drive fits into the gear housing. The drive operates at a pressure of from 6 to 12 ATM. This allows you to apply pneumatic systems that exist on the market. Pneumatic differential lock on “Field” is produced under the brand “Tree racing”.

The Advantages and disadvantages of forced systems

So, if it's disabled, the differential works in normal mode. The resource is the same as the original. Also, as for blocking, it works 100 percent. You can easily go heavy sections, the driver fully controls the operation of the system.

It was the benefits, and now about the shortcomings. Sometimes some systems are very hard to install. In addition, greatly increases the load on the drivetrain. And if the system is applied incorrectly, the box can fail. Factory set and improvised diff-lock on “Field” significantly affects the handling, if not used properly. Compared to samolaco she has a very high cost.

The Advantages of samboka

These systems are very easy to install, their cost is two times less, the probability of failure is also very low. Among the disadvantages allocate the worst handling on turns and the inability to lock the differential completely.

Reviews

Though the price of this equipment is high and the impact on the drivetrain – harmful, blocking popular. What to choose to get pleasure from riding? The products of "Val-racing" gets a lot of positive feedback. About products "Simbat" a lot of penalties over the reliability of the system. As for air locks, everything is good. System "Locke" of the drivers will love at an affordable price and ease of operation. But there are negative reviews due to the use of the system on the pavement. A good way to apply it is not necessary.

But in any case, even the worst factory still better than a homemade differential lock on “Field” or the welding mechanism with their hands.

Now, we find out what constitutes this element.