What are the key components of jaw crusher

Jaw crushers are mainly used for coarse and medium crushing in mining, building materials, infrastructure and other industries. They have the characteristics of large crushing ratio, high output, simple structure, uniform crushing particle size, and simple maintenance. Below we mainly introduce several key components of the jaw crusher.

1. Moving and fixed jaw plates

The jaw plate is the component that directly contacts the material when the jaw crusher is working. During the operation of the jaw crusher, the material is continuously squeezed and ground in the crushing cavity formed by the movable and fixed jaw plates to complete the crushing.

2. Toggle board

Toggle board is also called thrust board. Although it is simple, it plays a very important role. The toggle plate can not only transmit power and support the lower end of the movable jaw to swing, but also is the safety device of the jaw crusher. When difficult-to-break materials enter the crushing chamber, the toggle plate breaks first, thereby protecting the valuable parts of the machine (such as the movable jaw, body, etc.) from damage.

Jaw Crusher

3. Adjustment device

The adjustment device in the jaw crusher is used to adjust the size of the discharge opening of the crusher. The jaw crusher has various adjustment methods such as wedge type, gasket type and hydraulic type. The commonly used wedge adjustment methods are from front to back. It consists of two wedges. The front and rear wedges can move to change the distance between them, thereby adjusting the size of the discharge port. It is simple and fast, and such adjustment is very random, which can save time and reduce downtime.

4. Flywheel

The flywheel is also an important component of the jaw crusher. The flywheel plays two important roles in the operation of the jaw crusher. One is to balance the weight of the sheave, and the other is to store energy. Because the jaw crusher works intermittently and is divided into working stroke and idling stroke, the motor load is very unbalanced. In order to balance the motor load, it is necessary to store the energy of the idling stroke when the movable jaw leaves the static jaw so that it can be used during the working stroke. Then release all the energy.