The work of the diaphragm spring clutch can be divided into three processes: working, disengaging and engaging.
1. Work process. When the diaphragm spring is installed between the clutch cover and the pressure plate, the pressure on the pressure plate formed by the pre-compression deformation makes the main and driven parts of the clutch compressed, that is, the clutch is in the engaged state. Engine power is transmitted to the disc via a flywheel, clutch cover and pressure plate connected to the crankshaft, and then to the input shaft of the transmission via the splined sleeve of the disc disc. The working characteristics of this process are that the torque and speed transmitted by the main and driven parts of the clutch are the same, and there is no speed difference between the main and driven parts, and there is no slip grinding.
2. Separation process. The driver presses the clutch pedal, the pedal moves left, the push rod moves left, and the diaphragm spring separator moves left through the cylinder and the working cylinder. Affected by this, the diaphragm spring is fixed on the clutch cover as the fulcrum, so that the big end moves to the right, and at the same time, the tension and pressure plate moves right through the action of the separation plate. Finally, there is a gap between the driven disc and the flywheel and the pressure plate, and the clutch is separated, and the clutch separation process is over.
The working characteristics of the clutch in the separation process are: the power and movement of the engine after separation cannot be transmitted to the driven disc. The active part remained in sync with the engine speed, while the driven part was rapidly reduced.
3. Joining process. The driver releases the clutch pedal, and the pedal returns to its original position under the action of the return spring, and at the same time drives the push rod and release bearing back into position. That is, the movement of the manipulating mechanism in the joining process is the reverse process of the separation process. When there is a reserved gap between the release bearing and the diaphragm spring separating plate and the diaphragm spring re-compresses the pressure plate on the driven plate, the engagement process ends and the clutch resumes the function of transmitting power.