Gearboxes have been used for many decades in various fields of instrumentation and technology. But the most common such devices were in the automotive industry in the manufacture of units and components of automobiles. Different types of gearboxes are installed on cars, scooters and motorcycles. For the first time this equipment was manufactured at the Tula plant, but at that time it was a real shortage, so only the wealthiest people could buy it.
Currently, such devices are very common, but only now they are no longer in demand. That is why it is very difficult to select spare parts for them. Sometimes you may even need a precise gearbox drawing to create quality parts.
Types of devices
The following main types of gearboxes are distinguished:
- worm gears;
- toothed;
- gear motors;
- hydraulic.
All of them are endowed with their own characteristics and are used in various fields. A device of this kind can be found in almost any car. Each of them is endowed with an additional gear shaft. The efficiency of the gearbox also depends on the type.
In addition, the installation of such a device is very simple, but you should be very careful not to damage the shaft of the primary gearbox. Moreover, to create it, a minimum of materials is used, and during installation, no frame structures are even needed. The manufacturers also took into account the fact that it is necessary to create such a device that would fully meet all the needs of consumers. Therefore, there are types of gearboxes of different sizes and power.
Planetary and Spur Gearboxes
These types of gearboxes are most often used in modern mechanisms and units for general industrial use. They are made according to the following scheme: the output shaft and the electric motor are very close to each other. Helical gears are the most popular of all existing today. They are designed to change the speed of rotation when transmitting torque. Modifications of such devices can be one- or three-stage.
All types of cylindrical gearboxes are reliable and durable, therefore, machines and equipment possessing these plants are very durable and productive.
Worm gearboxes: types and purpose
A worm gearbox is a special kind of a rather unusual case with a worm thread profile. It is used when transmitting movement between intersecting axes, which are usually located at right angles. The main advantage of this device is the possibility of obtaining a large gear ratio in one stage .
Helical bevel gears
Such devices also have their own characteristics. Their working elements are endowed with a very original constructive solution, but perform the same functions as other types of gearboxes: they change the speed of rotation when one shaft transmits rotational motion to another. Compared with other varieties, such devices have a fairly high efficiency. Most often used for various drives of conveyor lines, mine traction electric locomotive, etc.
As noted earlier, the types of gearboxes, the photos of which are posted in the article, are used each in their own specific field. It should be remembered that the correct choice of such a device guarantees a long period of its operation, and, accordingly, vice versa. Therefore, it is worth paying special attention to the acquisition of equipment that will be installed in the car.
Gearbox disassembly
The gearbox housing has certain features, due to which the disassembly of such a device is carried out according to a certain scheme. This process is necessary if, for some reason, the gear unit has stopped functioning normally. Many do very wrong: when the gearbox breaks down, it is simply thrown away. But if you competently approach this matter, such equipment can be repaired, after which the equipment will function in the same way as before. In addition, as mentioned earlier, it is quite difficult to purchase such parts for your car or scooter, so you should not scatter them in vain.
Disassembly Stages
- If the gear case was disassembled for some time, then, first of all, it would be nice to clean it of dirt and dust.
- Next, you need to unscrew all the bolts tightening the gearbox. Then, using a building hair dryer, warm up the device from all sides, and then tap the case with a wooden mallet. This should be done until two halves are formed.
- It is necessary to find out, as a result of which a breakdown occurred. Naturally, there are various types of gearboxes, so it is important to consider this when searching for the cause of a malfunction. As a rule, gearboxes fail for 2 main reasons: the first - the input shaft or its bearing is broken, the second - the teeth are worn off the gears. If the parts are broken, they will have to be thrown away.
- Replace gears and bearings with new parts.
- Remove retaining shield.
- Remove the snap ring and remove the axle shaft from the cup.
- Before assembling all the parts, it is necessary to check their integrity.
- After the gear housing has been fully assembled, it can be returned to the designated place.
Features of gas reducers
A gas pressure regulator is a device used to equalize the pressure level during gas supply. Such a device can effectively maintain the desired pressure. In addition, if necessary, it can reduce its level. Thanks to the gearbox, you can save a lot, which is very important today.
There are such types of gas reducers: propane and methane. The first of them is used in welding and cutting metal. The second is installed on vehicles to save fuel. It is worth noting that both of these options have their own unique features.
Propane Gearboxes
Such devices are most often used in domestic and industrial environments. They can be found in modern homes where household gas cylinders are used.
Methane reducers
They are actively used on various cars. Today, many drivers give their preference to gas, because you can ride it more economically. The reducer gives the chance both to save, and to provide safety. A lot depends on the quality of the device. Therefore, it is recommended to purchase it in a trusted place and only with a product certificate.
Types of VAZ gearboxes
Depending on the components, such devices can be of different types. The gears of the main gear are endowed with an unusual shape, and the teeth are at different angles. This is because the transmission of the hypoid species is used. Its main advantages are:
- work without jerking;
- low noise level;
- reduced load on each of the teeth.
Thus, the whole mechanism can be operated for a sufficiently long time and, as practice shows, is quite reliable. Gearboxes can have a gear ratio - 3.9, 4.1, 4.3, 4.44. It should be noted that such devices are installed on many other models of domestic cars.