2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Clutch is an important structural element of the machine's transmission. Why? It is intended for short-term disconnection from the transmission. In addition, it helps in further smooth connection when switching speeds. The clutch also protects the transmission elements from overloads and vibrations. It is located between the gearbox and the engine. In this article, we will tell you how the clutch works and what it looks like.
Clutch types
1. Friction. Transmits torque using friction forces. This is the most common type.
2. Hydraulic. Transmits torque with the help of a special fluid flow.
3. Electromagnetic. Transmits torque using a magnetic field.
Also clutch happens:
- single disc, double disc or multi disc;
- dry or wet.
Practically all modern cars are equipped with a dry clutch with a single disc, which has the following device: clutch fork, release clutch, clutch release bearing, diaphragm spring, driven disk, pressure disk, clutch housing, flywheel.
How does a single disc clutch work?
A flywheel is installed on the crankshaft of the motor, which acts as a clutch drive disc. As a rule, a dual-mass flywheel is installed on modern cars, which consists of two elements connected by springs. In this case, one part is connected to the driven disk, and the other to the crankshaft. Thanks to this design of the dual-mass flywheel, vibrations and jerks of the crankshaft are smoothed out. Structural elements are located in the clutch housing, which is attached to the engine with two bolts. In cars with automatic transmission, a single disc clutch is usually not installed for the reason that the principle of operation of an automatic transmission is different from mechanics.
How does a clutch work? The pressure disk presses the driven disk against the flywheel. At the same time, if necessary, ceases to exert pressure on him. The pressure disk is connected to the casing by means of lamellar tangential springs, which act as return springs when the clutch is released.
The diaphragm spring acts on the pressure plate. At the same time, it provides the compression necessary for efficient transmission of torque. The outer diameter of this spring rests onedge of the pressure disk. There are metal petals on the inner diameter of the spring. Clutch disengagement bearings act on their ends. The clutch diaphragm spring is fixed in the housing with support rings or spacer bolts.
The body, diaphragm spring and pressure plate form a single unit called the clutch basket. It is rigidly bolted to the flywheel. There are two types of baskets:
- pull action
- push action.
The exhaust basket is characterized by its low thickness. For this reason, it is used in confined spaces.
The driven disc is located between the pressure disc and the flywheel. Its hub is connected to the gearbox input shaft. Friction linings made of glass fibers are installed on both sides of the driven disk. They can withstand temperatures up to 400 degrees.
How a dual disc clutch works
Dual disc clutch transfers more torque with the same size. It also provides a high resource for the entire structure.
In this article, we told you about how the clutch works. In a car with an automatic transmission, gear shifting occurs according to a slightly different principle. Mainly use double disc clutch.
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