What are the functions of the clutch? What is the function of the clutch?

There are three main functions of the clutch:

1. Even if the vehicle starts smoothly.

2. Ensure smooth shifting.

3. Prevent overload of the drive train.

There are two functions for daily use, which are to make the vehicle start smoothly and to ensure smooth gear changes.

1. Ensure a smooth start of the car.

This 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. This is because when the car moves from standstill to forward, it generates a large inertial force, which causes a large 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 is turned off 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. In the process of engagement, the drag torque of the engine gradually increases, so 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 speed of the engine is always maintained at the lowest stable speed without stalling.

At the same time, due to the gradual increase in the tightness of the clutch, the torque transmitted by the engine to the driving wheels through the drive train gradually increases, and when the traction force is enough to overcome the starting resistance, the car starts to move from a standstill and gradually accelerates to ensure that the drive train works smoothly when shifting gears.

2. Achieve smooth gear shifting.

In the process of driving, in order to adapt to the changing driving conditions, the drive train often has to change different gears to work. To realize the gear shift of the gear transmission, it is generally to toggle the gear or other gear mechanism, so that a gear pair of the original gear is pushed out of the transmission, and then the gear pair of another gear is put into the work. Before shifting gears, the clutch pedal must be stepped on, and the power transmission is interrupted, so that the meshing pair of the original gear can be disengaged, and the speed of the meshing part of the new gear meshing pair is gradually synchronized, so that the impact when entering the meshing can be greatly reduced, and a smooth shift can be realized.

3. Prevent overload of the drive train.

When the car is braking urgently, if there is no clutch, the engine will be rigidly connected with the drive train and reduce the speed sharply, so all the moving parts will produce a large moment of inertia (its value may greatly exceed the maximum torque emitted by the engine when working normally), causing more than its bearing capacity to the drive train, and causing damage to the parts. With a clutch, it is possible to rely on the relative movement that may occur between the active and driven parts of the clutch to eliminate this danger. Therefore, we need a clutch to limit the maximum torque that the drivetrain can withstand and ensure safety.

The clutch, as the name suggests, plays the role of separation and closing, that is, the separation of the engine and the wheel transmission.

That is to say, when you press the clutch, then the transmission of the engine is disconnected from the wheels, and the power of the engine is not transmitted to the wheels to drive the car.

The role of the clutch on the car:

1. It is conducive to the start of the car.

The car is stationary before starting, because the engine and the gearbox are rigidly connected, once the gear is hooked, the car will suddenly rush forward due to the sudden connection of power, which will not only cause damage to the parts, but also the driving force is not enough to overcome the huge inertia force generated by the car forward, so that the engine speed drops sharply and stalls.

If the clutch is used to temporarily separate the engine and the gearbox at the start, and then the clutch is gradually engaged, because there is a slip grinding phenomenon between the active part of the clutch and the driven part, the torque transmitted by the clutch can gradually increase from zero, and the driving force of the car also gradually increases, so that the car starts smoothly.

2. It is convenient for the car to shift gears.

In the process of driving the car, it often involves shifting gears to adapt to the needs of different driving environments, and when changing gears, the clutch will be used. The clutch can temporarily separate the engine from the gearbox, and the engine and the gearbox are temporarily separated by using the clutch to shift gears, then the original meshing of a pair of gears is removed due to the load, and the pressure between the meshing surfaces is greatly reduced, and it is easy to separate, if there is no clutch, the pressure between the meshing tooth surfaces is very large and difficult to separate, and it is easy to damage the parts.

3. Prevent damage caused by excessive pressure of the transmission system.

When the car brakes urgently, the wheels suddenly and sharply reduce speed, and the drive train connected to the engine still maintains the original speed due to the inertia of rotation, which often produces a moment of inertia in the transmission system that is much greater than the engine torque, making the parts of the drive train easy to damage.

4. Reduce torsional vibration impact.

The output torque of the automobile engine is usually unstable, the engine is running in the stroke, and the inertia of the rotation system of the engine itself can reduce the torsional vibration, but the remaining impact force still has an adverse effect on the subsequent gearbox and transmission shaft, and the damping spring in the clutch can significantly reduce the torsional vibration impact brought by the engine and prolong the life of the transmission gear.

The function of the car clutch 1Ensure a smooth start of the car 2Easy to shift gears 3Prevent the drive train from overloading 4Reduces torsional vibration impact.

1.Ensure the smooth start of the car: the car is in a stationary state before starting, if the engine and the gearbox are rigidly connected, once the gear is hooked, the car will suddenly rush forward due to the sudden connection of power, which will not only cause damage to the parts, but also the driving force is not enough to overcome the huge inertia force generated by the forward rush of the car, so that the engine speed drops sharply and stalls.

If the clutch is used to temporarily separate the engine and the gearbox at the start, and then the clutch is gradually engaged, because there is a slip grinding phenomenon between the active part of the clutch and the driven part, the torque transmitted by the clutch can gradually increase from zero, and the driving force of the car also gradually increases, so that the car starts smoothly.

2.Easy shifting: During the car's driving, different gearbox gears are often changed to adapt to changing driving conditions.

If there is no clutch to temporarily separate the engine from the gearbox, the meshing force transmission gears in the gearbox will be difficult to separate because the load is not removed, and the pressure between the meshing tooth surfaces is very high. On the other hand, the meshing gear will be difficult to mesh due to the unequal circumferential speed of the two. Even if it is forcibly entered, it will produce a large impact on the tooth ends, which can easily damage the parts.

When the clutch is used to temporarily separate the engine and gearbox and then shift gears, the original meshing pair of gears is removed due to the load, and the pressure between the meshing surfaces is greatly reduced, and it is easy to separate. And the other pair of gears to be meshed, because the moment of inertia of the driving gear is very small after separating from the engine, the circumferential velocity of the gear to be meshed can be equal or nearly equal by adopting a suitable shift action, so as to avoid or reduce the impact between the gears.

3.Prevent overload of the drive train: When the car brakes urgently, the wheels suddenly and sharply reduce speed, and the drive train connected to the engine still maintains the original speed due to the inertia of rotation, which often produces a moment of inertia in the transmission system that is much greater than the engine torque, making the parts of the drive train easy to damage.

Because the clutch relies on friction to transmit torque, when the load in the drive train exceeds the torque that can be transmitted by friction, the main and driven parts of the clutch will automatically slip, thus preventing the drive train from overloading.

4.Reduced torsional vibration impact: The working principle of the automobile engine determines the unevenness of its output torque.

In the power stroke, the combustion chamber gas** produces a great impact torque, while in other strokes, it is the inertial back-dragging engine. Although the inertia of the engine itself reduces torsional vibration, the remaining impact force still adversely affects the subsequent gearbox and propeller shaft. The damping spring (tangential distribution) in the clutch can significantly reduce the torsional impact caused by the engine and extend the life of the transmission gear.

1. The role of the clutch. The clutch is located between the engine and the gearbox, allowing for reliable engagement and complete disengagement. Its role is:

1) Make the engine crankshaft and the transmission system smoothly and gently engage to ensure a smooth start of the motorcycle. Because the motorcycle is in a stationary state before starting, if the high-speed rotating engine is suddenly connected to the load to drive the whole vehicle, it will not only damage the parts, but also cause the engine speed to drop sharply and cause the engine to stall, so that the motorcycle can not start. If the clutch is used to gently transmit power, so that the driving force gradually increases from zero, the motorcycle can start smoothly.

2) The engine crankshaft and the transmission system can be quickly and completely separated to ensure that the motorcycle does not produce impact when shifting gears. When the motorcycle needs to shift gears according to the road conditions during driving, if the power is not cut off first, the original meshing gears are not removed due to the load, and it is very laborious to make them disengage from meshing; Furthermore, when shifting gears, if the circumferential speed of the two gears is unequal, it is difficult to enter the meshing and inevitably produce tooth end impact, resulting in gear damage. If the power of the engine is cut off by the disengagement of the clutch, the load of the original meshing gear is eliminated, and the meshing gear is easy to disengage.

For the other pair of gears to be meshed, the speed of the active gear gradually slows down due to the cut-off of engine power, and the passive gear also slows down as the vehicle speed decreases, so that the gear can be changed more smoothly.

3) It can prevent the transmission system parts from being damaged by overload. When the motorcycle emergency braking, due to the effect of inertial force, often in the transmission system to produce a large torque, when the inertial torque exceeds the torque that the clutch can transmit, the active part and the driven part of the clutch can produce relative sliding, so that the parts of the transmission system can be protected from damage due to excessive load. The requirements for the clutch are:

The separation should be quick and thorough, the combination should be soft and smooth, and the maximum torque emitted by the engine should be transmitted, with good heat dissipation performance and labor-saving operation.

The clutch is located between the engine and the gearbox, the clutch can be connected or separated from the engine and the gearbox, the clutch needs to be used when shifting gears or starting, the manual transmission models have clutch pedals, after pressing the clutch pedal, the clutch is separated, after lifting the clutch pedal, the clutch is combined, if there is no clutch in the manual transmission model, it is basically impossible to shift normally, when starting, it is necessary to use semi-linkage skills, when starting, the engine flywheel and the clutch plate speed difference is larger, At this time, if the clutch pedal is all lifted, the engine will turn off, when starting, the clutch pedal should be slowly lifted, after finding the clutch bonding point, then continue to slowly lift the clutch pedal while slowly pressing the accelerator pedal, the pressure plate of the clutch is fixed on the engine flywheel, the clutch plate is located in the middle of the pressure plate and the flywheel, there is a spline in the middle of the clutch plate, this spline fixes a transmission shaft, this transmission shaft is the power input shaft of the gearbox, the clutch plate needs to be replaced after wearing to a certain extent, It is very troublesome to replace the clutch plate, when replacing, you need to disassemble the connection between the engine and the gearbox, and you also need to remove the gearbox entirely, usually when driving, the left foot can not be placed on the clutch pedal all the time, which may cause the clutch to slip, with the wear of the clutch plate, the free stroke of the clutch pedal should be adjusted, otherwise it will cause the clutch plate to slip.

What is the function of the clutch? Star Awareness Project

What is the role of the clutch, the clutch is the key to ensure a smooth start of the car, do you know.

What are the uses of clutches in automobiles?

Cut off or transfer the power output from the engine.

The role of the clutch is to ease the power output of the engine. Achieve the goal of a smooth start. It enables flexible and automatic gear shifting. Hard wear between gears is greatly reduced.

Make sure the car starts smoothly. This is the primary function of the clutch, and it is natural to start the engine before the car starts.

The role of the clutch is very simple, the role of the clutch is equivalent to as a bridge to transmit the power of the engine to the resistance box, but there will be different speeds and torques in the process of this conduction, the faster his troubles, the higher the gear ratio, so this process needs to use the clutch as a role is at different times.

The simple understanding is that the beginning of the faucet. For example, when we step on the clutch, this time is equivalent to running water from the faucet.

And if we don't step on the clutch, the water won't flow.

In automobiles, the clutch controls the engine and wheels. When you step on it, the engine and wheels are separated, so no power is transmitted. before you can hang the gear.

If not stepped on, they are glued together and cannot be separated.

The clutch, as the name suggests, is used to realize the power engagement and separation of the power mechanism and the transmission mechanism. When a higher gear shift is required, there is pressure between the gears, and it is difficult to change gears without separating the power. So a clutch fit is required.

Of course, the vehicle needs to stop, it needs to separate the power mechanism from the driving mechanism behind it, and it also needs a clutch. Otherwise, the power mechanism can only be stopped directly.