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Summary of common faults of jaw crusher



2020-08-03 18:57:54 1045

The common faults of the jaw crusher are summarized as follows

1 When the crusher is idling, there is a metal impact sound at the bottom. When the jaw crusher is working under no load, the metal impact sound at the bottom may be the following three reasons (1) The impact sound of the broken mobile jaw and the fixed jaw tooth plate is caused by the too small discharge port, and should be adjusted in time. (2) The impact sound in the thrust plate support or the gasket adjustment device is generally due to the tie rod The elasticity of the buffer spring disappears or is damaged, and the strong spring is not pressed tightly to cause rotation. When the three parts of the movable jaw plate and the bracket body are not tightly combined, causing the toggle plate head to collide with the supports at both ends, or the adjustment pads collide with each other, it should be timely Tighten the compression nut until the impact sound disappears. (3) It is also possible that the toggle support slider is seriously worn or the loose toggle head is seriously worn, and it should be replaced in time.

2 The metal percussion liner shakes. This phenomenon is often caused by the loosening of the side liner and the toothed plate (moving and fixed) of the crushing chamber, or the loosening or breaking of the fastening screw. It should be fastened or replaced in time. >3 The rear bracket breaks frequently. In addition to transmitting power, the rear bracket also relies on its insufficient strength to act as an insurance. Except that the strength of the middle of the bracket is too low, its strength is not enough to overcome the damage caused by the crushing force generated by normal crushing ore , It may be that the tension rod spring is too tight, and the crushing force during work causes it to be overloaded and broken. The spring can be adjusted appropriately.

4 The flywheel rotates and the crusher does not work. The reason is that The tie rod spring and tie rod are damaged, and the tie rod nut trips to release the toggle plate from the support slider, or the toggle plate breaks off, it should be replaced and installed.

5 The flywheel swings significantly and the eccentric shaft rotates. Slow. This failure is due to the loose or damaged belt wheel and flywheel key, and the wheel and shaft cannot rotate synchronously.

6 The crushed product particles and become thicker are the result of severe wear on the lower part of the crushing liner. The teeth should be removed. Replace or replace the new liner on the upper and lower boards, and adjust the discharge port to the required size.