Clutch - it is an important structural element of transmission machines.Why is that?It is intended for short-term disconnection from the transmission.In addition, further aids in smoothly connecting the speed change.Also, the clutch protects the transmission components from overloads and vibrations.It is located between the gearbox and the engine.In this article, we will tell you how the grip and how it happens.
Types clutches
1. Friction.It transmits torque by means of frictional forces.It is the most common type.
2. Hydraulic.It transmits torque with the help of a special liquid flow.
3. Electromagnetic.It transmits torque by means of a magnetic field.
also clutch is:
- single-disc, two-plate or multi-plate;
- dry or wet.
In almost all modern cars set dry clutch disc with one that has the following device: Plug the clutch, the clutch off, bearing off the clutch, the diaphragm spring, the clutch disc, the disc pressure, clutch, flywheel.
How does the clutch with a single disk?
on the crankshaft engine flywheel set, which acts as a master clutch.As a rule, modern machines installed dual-mass flywheel, which consists of two elements connected by springs.Wherein one part is connected to the driven disk, and the other - with the crankshaft.With this design a two-mass flywheel smoothes vibrations and jerks of the crankshaft.The structural elements are arranged in the clutch housing, which by means of two bolts attached to the engine.In vehicles with automatic transmissions usually do not put one disc clutch on the grounds that the principle of the automatic transmission is different from the mechanics.
How does the clutch?Disc pressure presses the slave drive to the flywheel.In this case, if necessary, it ceases to exert pressure.The disc is connected to a push through cover plate tangential springs, which, when turned off the clutch springs act as return.
Diaphragm spring acts on the pressure plate.At the same time it provides the compression necessary for the efficient transmission of torque.The outer diameter of this spring rests on the edge of the disk of the pressure.On the inside diameter of the spring metal petals present.At their ends exposed disengaging bearing.Diaphragm spring clutch is secured in the housing by means of support rings or spacers.
housing, diaphragm spring and pressure plate form a single unit, called a clutch.It is rigidly connected by bolts to the flywheel.There are two types of baskets:
- exhaust action
- push action.
Exhaust basket characterized by low thickness.For this reason it is used in a limited space.
disc is driven by the pressure between the disc and the flywheel.Its hub is connected to the primary shaft of a check point.On both sides of the driven disc set friction linings made from glass fibers.They can withstand temperatures up to 400 degrees.
How does a two-disc clutch
two-disc clutch transmits more torque for the same size.It also provides a long service life of the assembly.
In this article, we told you about how to work the clutch.In cars with automatic transmission gear change takes place on a somewhat different principle.Mainly used twin plate clutch.
