How to design elbow plate, tooth plate and elbow pad of jaw crusher

In the design of jaw crusher, it is necessary to design its structural composition and parameters reasonably. Among them, elbow plate, elbow pad and toothed plate are important parts of crusher, which need reasonable design.

The elbow plate of jaw crusher is mainly used to transmit power, or when non-broken objects enter the crushing cavity, the elbow plate can be broken first to protect other parts of the machine, so it is a safe part of the crusher, or the size of the discharge port can be adjusted by replacing elbow plates with different lengths. It is a kind of wearing parts and also an insurance part. The elbow plate is usually made of gray cast iron HTI5, and the structural form is generally integral, so large crushers should be used in combination.

Because the elbow pad will bear great impact pressure during the work of the crusher, it must be made of better materials. 5CrMnMo and 5 simnmov can be used for large crushers, as well as small and medium crushers, and 45 steel is commonly used.

Toothed plate (also known as lining plate) is a part of crusher that is in direct contact with ore. Although its structure is simple, it has an impact on the productivity, specific energy consumption, product particle size composition and shape, and crushing force of the crusher, especially the last three items.

The toothed plate bears great impact and extrusion pressure, so it is very worn. In order to prolong its service life, it can be studied from two aspects: one is to find high wear-resistant materials from materials; The second is to reasonably determine the structural shape and geometric size of the toothed plate. At present, the tooth plate used in jaw crusher is generally ZGMnl3. In recent years, high chromium white cast iron is widely used to manufacture tooth plates at home and abroad because of its long service life. In order to ensure the product granularity and shape, the toothed plate usually adopts triangle or trapezoid.

In a word, when designing various parts of the jaw crusher (www.epojiqi.net), we should strictly follow the design requirements and comprehensively consider various influencing factors, so as to design the most suitable structure and fundamentally improve the production capacity of the crusher.