What are the causes of blockage at the discharge port of a jaw crusher?

The causes of discharge port blockage in jaw crushers during sand and gravel production line operation are as follows:

1. During operation, the jaw crusher crushes materials through the reciprocating motion between the moving jaw and the fixed jaw. When the moving jaw moves away from the fixed jaw, it's the discharge process. If the material's descent speed slows down during this process, a large amount of material accumulates in the crushing chamber, causing blockage at the jaw crusher's discharge port.

Jaw Crusher Technical Consultation

2. The main transmission method of the jaw crusher is through a V-belt driving a flywheel to rotate at high speed due to inertia. For the flywheel to be driven, two conditions are required: sufficient motor power and a sufficiently strong V-belt.

Commonly, the V-belt is the most prone to failure. A loose or broken V-belt will allow a large amount of material to remain uncrushed in the crushing chamber, causing blockage and preventing discharge.

Jaw Crusher Technical Consultation

2. The main transmission method of the jaw crusher is through a V-belt driving a flywheel to rotate at high speed using a V-belt. 3. Another common cause of blockage at the discharge port of a jaw crusher is a loose eccentric shaft bushing. When this bushing is loose, the eccentric shaft can become jammed. Without rotation, the moving jaw cannot continue to rotate, leading to blockage at the discharge port and preventing material from flowing out.

4. The jaw crusher motor requires a certain voltage to operate normally. If the voltage is too low during operation, there will be insufficient power to crush the material, resulting in a large amount of stone clogging the crushing chamber and causing a shutdown.

5. The main bearing of the jaw crusher is the primary power component responsible for rotating and crushing materials. Failure or damage to the main bearing will severely affect the jaw crusher's production performance, ultimately causing blockage at the discharge port.