The one of the car gearbox is the driving gear, and that is the driven wheel

The number of teeth of the driven wheel divided by the number of teeth of the driving wheel [dividend.]

driven wheel; divisor = driving wheel].

in the gearbox. The so-called driving wheel is the gear that attaches power to drive other gears, and the driven wheel is obviously the gear that is driven. When the driving wheel is a pinion and the driven wheel is a large-diameter gear, because the small tooth drives the large tooth to rotate, the speed of the wheel is very slow, but the torque at the end of the wheel is relatively large.

When the vehicle starts, it has to overcome the friction between the tires and the ground.

It also has to carry a heavier body, so it requires a lot of torque to drive, and as a starting gear, it needs a gear combination of small teeth to drive large gears, that is, large gear ratios. Then, if the diameter of the driven gear is appropriately reduced, the gear ratio becomes smaller, and it is easy to understand accordingly, at this time, the torque decreases, and the speed begins to increase, this gear.

It is mainly used to deal with urban driving with complex traffic conditions, and is generally a second- or third-gear gear set. If we continue to reduce the diameter of the driven tooth until the diameter of the driving gear and the driven tooth are equal, that is, when the ratio is 1, the energy loss is relatively small, the torque and speed are ideal, suitable for daily highway driving, this gear is generally called direct gear, usually the gear before the highest gear, for example, the five-speed gearbox is the fourth gear. Of course, this is based on the gearboxes with different gear ratios on different vehicles.

Then, the so-called overdrive does not need to be said too much, that is, the diameter of the driven gear is larger than the driving tooth, and the gear ratio is less than 1, this combination will produce a larger speed, and a smaller torque, adapt to high-quality road conditions, so as to save fuel.

First of all, gears are not fundamental. The first axis of the transmission is the driving shaft, and the second and third shafts are the driven shaft.

Take the three-axis test and 5-speed manual transmission as an example, the input shaft, intermediate shaft, output shaft, and input shaft are active intermediate shafts and driven when hanging.

The transmission principle of the gear gearbox is through this or over-speed transmission and torque conversion principle, which is to use the gear meshing transmission with different numbers of teeth to achieve the change of torque and speed. Let's make the family.

Automobile transmission gear is an important part of controlling the speed and power of the car, and its main principle is to use different gear ratios in the gearbox to achieve the matching between the output speed of the engine and the speed of the wheels. In automobile transmission gears, there are generally multiple gear trains composed of gears, and the speed is changed by selecting different gear ratios.

When the driver needs to accelerate, a clutch in the gearbox connects the engine to the gearbox, and the power is transmitted to a pair of gears in the gearbox, increasing the output torque and reducing the speed of the vehicle. At this point, the vehicle can travel faster, but at the same time, it consumes more fuel.

When the driver needs to slow down or stop, the receiver in the gearbox separates the engine from the gearbox, and the vehicle's power is no longer transmitted to the wheels. At this time, the gears in the gearbox are gradually lowered, which slows down the wheel rotation, so that the speed bump field or stop can be realized.

Automobile transmission gear is an important part of the automobile transmission system, and its main role is to transmit the power of the engine to the wheels to drive the car. Its working principle is mainly divided into the following aspects:

1.Basic principle: Automobile transmission gears are composed of many gears, and power transmission is completed through the meshing between the gears. Gears of different sizes can be combined to achieve different transmission ratios, so as to achieve speed adjustment, acceleration and other functions.

2.Polarization principle: Since there is slippage between the gears when the gears are meshed, a small friction force is generated on the surface of the gears.

In order to reduce the frictional resistance to the loss of gears, the surface of the gearbox gears in the driving is generally polarized to form fine grooves and burrs to reduce the contact area and surface friction between the gears.

3.Transmission principle: The gears in the automobile gearbox are generally combined in different forms such as size, quantity, and structural form.

In different driving situations such as acceleration and deceleration, the power output of the engine needs to be transmitted to the wheels through different gears, so it is necessary to select the appropriate transmission ratio according to the driving needs. The gearbox realizes the adjustment of different gears of the vehicle speed through different gear combinations, so as to achieve the effect of transmission adjustment.

4.Design principle: Automobile transmission gears are generally made of cemented carbide materials to ensure that they are strong and durable, and not easy to be damaged. In the manufacture and design of gears, it is also necessary to consider factors such as gear material, size, and meshing angle to ensure its transmission efficiency and durability.

To sum up, the gears of automobile transmission are important components in the automobile transmission system, which use various principles such as gear meshing and transmission adjustment to achieve the effect of vehicle speed control and acceleration. After polarization treatment and scientific design, the automotive gearbox can achieve high transmission efficiency and long-term durability.

1.Principle of variable speed and torque conversion.

Ordinary gear transmission uses gear meshing and delaying ridge transmission with different number of tooth denier groups to realize the change of leakage torque and speed.

2.Principle of change of direction.

Reverse gear is achieved by adding a one-stage gear transmission pair. When the two-shaft transmission is in the forward gear, the power is transmitted from the input shaft to the output shaft, and only through a pair of gears, the two shafts rotate in opposite directions. When reversing, the power is transmitted to the reverse shaft by the input shaft, and then to the output shaft by the reverse shaft, and after two pairs of gear transmission, the input shaft and the output shaft rotate in the same direction.

3.Multi-stage gearing principle.

Figure 3-3 shows a two-stage gear transmission schematic diagram, gear 1 is a driving gear, driving gear 2 rotates, gear 3 is connected with gear 2 solidly, then drive gear 4 to rotate and output power, and the transmission ratio transmitted to gear 4 by gear 1 at this moment is i14=n1 n4=(z2 z4) (z1 z3)=i12 i34.

Therefore, it can be summarized that the transmission ratio of multi-stage gear transmission is i = product of the number of teeth of all driven gears Product of the number of teeth of all driving gears = product of the gear ratio of each level.

Gear is one of the ways of mechanical transmission, that is, the size of the gear forms a speed ratio to achieve speed change and torque change.

In the front position, the clutch is located in the flywheel housing between the engine and the gearbox, and the clutch assembly is fixed to the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the gearbox. While the car is moving, the driver can press or release the clutch pedal as needed to temporarily separate and gradually engage the engine from the gearbox to cut off or transmit the power input from the engine to the transmission.

Ensuring a smooth start of the car is the primary function of the clutch. Before the car starts, it is natural to start the engine first. Whereas, when the car starts, the car accelerates gradually from a completely stationary state.

If the drivetrain (which links the entire car) is rigidly connected to the engine, the car will suddenly rush forward as soon as the transmission is engaged, but it will not start.

The relevance is as follows. This is because the car has a lot of inertia when it goes from stationary to forward, which causes a lot of drag torque to the engine. Under the action of this inertial drag torque, the engine speed drops sharply to below the minimum stable speed (generally 300-500rpm) in an instantaneous time, and the engine stops and cannot work, and of course, the car cannot start.

That's why we need the help of the clutch. After the engine starts, before the car starts, the driver first presses the clutch pedal, disengages the clutch, disengages the engine and the drive train, and then puts the transmission into gear, and then gradually releases the clutch pedal to make the clutch gradually engaged. During the engagement process, the drag torque on the engine gradually increases.

Therefore, the accelerator pedal should be gradually pressed at the same time, that is, the fuel supply to the engine should be gradually increased, so that the engine speed is always maintained at the lowest stable speed without stalling. At the same time, as the engagement of the clutch gradually increases, the torque transmitted by the engine to the driving wheels through the drive train gradually increases, and when the traction force is sufficient to overcome the starting resistance, the car starts to move from a standstill and accelerates gradually.

Regardless of whether it is a front-wheel drive car or a rear-wheel drive car, the clutch is between the engine and the gearbox, and only the clutch of the chain rail car is on the drive wheels.

The car clutch is between the gearbox and the engine.

Gearboxes, transfer cases, gearboxes, and gearboxes have different functions, different structures, and different application ranges. The gearbox is another name for the gearbox.

The differences between gearbox, transfer case, gearbox and gearbox are as follows:

First, the role is different.

1. The gearbox controls acceleration and deceleration, which is often referred to as the variable speed gearbox.

2. The transfer case is a device that distributes the power of the engine, and can output the power to the rear axle, or to the front and rear axle at the same time.

3. The gearbox is to change the transmission ratio to meet the needs of traction under different driving conditions, so that the engine can work under favorable working conditions as much as possible to meet the possible driving speed.

Second, the structure is different.

2. The transfer case is separated and connected by two sets of gears.

3. The gearbox is composed of two parts: a variable speed transmission mechanism and a variable speed control mechanism. The main function of the variable speed transmission mechanism is to change the value and direction of torque and speed, and the main function of the control mechanism is to control the transmission mechanism and realize the transformation of the transmission ratio, that is, to realize the gear shift, so as to achieve the variable speed and torque.

Third, the scope of application is different.

1. Gearboxes are widely used in printing and packaging machinery, three-dimensional garage equipment, environmental protection machinery, conveying equipment, chemical equipment, metallurgical mining equipment, iron and steel power equipment, mixing equipment, road construction machinery, sugar industry, wind power generation, escalator elevator drive, shipbuilding field, light industry field, paper field, metallurgical industry, sewage treatment, building materials industry, lifting machinery, conveyor line, assembly line and other occasions with high power, large speed ratio and high torque.

2. The transfer case has been widely used by various brands of agricultural machinery in the world, which is completely different from the transfer case for automobiles and construction machinery, and the transfer case extends out of the field dedicated to agricultural machinery.

3. The gearbox is mainly used in automobiles.

Encyclopedia - Transfer case.

Encyclopedia - Gearbox.

Summary. Hello, the driving gear and driven gear of the manual transmission are: the driving gear is the one connected to the clutch on the power shaft.

What are the driving gears and driven gears of manual transmissions.

Hello, the driving gear and driven gear of the manual transmission are: the driving gear is the one connected to the clutch on the power shaft.

There are 3 groups of gears of the gearbox, there are driving gears, driven gears, and there are reversing gears, the driving gear is the one connected to the clutch on the power shaft, the smallest gear on the driving shaft is the first gear gear, and so on, the gear on the driven shaft is just the opposite, the gear of the first gear is the largest, and so on, the reversing gear is the two gears, and the one that adds more in the middle is the reversing gear.

The gearshift gear of the gearbox is a star gear transmission. The star gear transmission gearbox has a compact structure, and the transmission efficiency is much higher than that of the fixed shaft gear transmission gearbox, so it has been more widely used in power transmission.

A device that changes the speed ratio and direction of movement. It is used in automobiles, tractors, ships, machine tools and various machines to change the torque speed and direction of movement transmitted from the driving shaft to the driven shaft according to different working conditions. A geared gearbox generally consists of a case housing and a number of gear pairs.

How it works. When the vehicle is in the state of shifting, the driver separates the input shaft clutch gearbox input shaft loses power, the wheel becomes a driving part, and the power will be reversed input to the gearbox, at this time, due to the characteristics of the output shaft clutch unidirectional transmission, the output shaft clutch of reverse drive is in a state of separation.

At this moment, the gearbox input shaft and the gearbox output shaft are in the state of losing driving force, and the output shaft sliding gear realizes the meshing with the second driving gear of the input shaft on the input shaft through a fork, and completes the smooth shift operation.

Although the torque converter can transmit and increase the engine torque, the torque conversion ratio is not large, and the transmission range is not wide, which is far from meeting the needs of the automobile working conditions. In order to further increase the torque, expand its transmission range, and improve the adaptability of the car, an auxiliary transmission is installed behind the torque converter, and the planetary gear mechanism is mostly used.

The planetary gear transmission is composed of a planetary gear mechanism and actuators such as clutches, brakes and one-way clutches. A planetary gear mechanism usually consists of multiple planetary rows. The number of planets is related to the number of gears.

The shift actuators of planetary transmissions include shift clutches, shift brakes, and one-way discs.