Working principle and process of clutch

Working principle and process of clutch

The clutch is located in the flywheel housing between the engine and the transmission. During the driving of the tractor, the driver can step on or release the clutch pedal as needed to temporarily separate and gradually engage the engine to cut off or transfer the engine to the transmission Input power. Do you know the working principle and process of the clutch?

 

 

The principle of the clutch

The clutch consists of a friction plate, a spring plate, a pressure plate, and a power output shaft. It is located between the engine and the gearbox. It is used to transmit the torque stored on the engine flywheel to the gearbox to ensure that the vehicle is transmitted to the right amount of driving force for the drive wheels.

 

Generally speaking, the clutch works when the vehicle starts and shifts. At this time, there is a speed difference between the first and second shafts of the gearbox. The power of the engine must be cut off from the first shaft to make the synchronizer well. The speed of one axis is kept synchronized with the two axes. After the gear is engaged, a shaft is combined with the engine power through the clutch, so that the power can continue to be transmitted.

 

There is also an indispensable cushioning device in the clutch. It consists of two discs similar to a flywheel. A rectangular groove is punched on the disc, and a spring is arranged in the groove. When encountering a fierce impact, the spring between the two discs is elastic to each other. Function, effectively protecting the engine and clutch.

 

 

Typical clutch working process

The work of the diaphragm spring clutch can be divided into three processes: work, release and engagement.

 

1. Working process. When the diaphragm spring is inserted between the clutch cover and the pressure plate, the pressure on the pressure plate caused by the pre-compression deformation causes the main and driven parts of the clutch to be compressed, that is, the clutch is in an engaged state. The engine power is transmitted to the driven disk through the flywheel, clutch cover and pressure plate connected to the crankshaft, and then transmitted to the input shaft of the transmission through the driven disk splined bushing.

 

2. Separation process. The driver depresses the clutch pedal and pushes the diaphragm spring separation plate to the left through the cylinder and the working cylinder. The diaphragm spring uses the support pin fixed on the clutch cover as a fulcrum to move the big end to the right, and at the same time pulls the pressure plate to the right by the action of the separation plate. Finally, there is a gap between the driven disk, the flywheel, and the pressure plate, and the clutch is released, and the clutch release process ends.

 

3. The joining process. The driver releases the clutch pedal and returns to the original position under the action of a return spring, simultaneously drives the push rod and the release bearing to return. The movement of the manipulating mechanism during the joining process is the reverse of the separation process. When a reserved gap appears between the release bearing and the diaphragm spring separation plate and the diaphragm spring re-presses the pressure plate against the driven plate, the engagement process ends and the clutch resumes transmitting power.

 

The above is the principle and work of the clutch. Follow us to learn more about the various parts of agricultural machinery tools.