The structural composition of the jaw crusher revolves around; Stable support, high crushing efficiency, flexible adjustment; The design consists of five key systems, which work together to achieve the extrusion and crushing function of materials.
        1. Rack: the supporting foundation for equipment
        The frame is the load-bearing framework of the entire crusher, which needs to withstand the huge impact force and squeezing force generated during crushing.
        The material is mostly cast as a whole or welded with thick steel plates to ensure high strength and rigidity and avoid deformation.
        The structure is divided into integral and combined types, with small equipment commonly using integral type (compact structure) and large equipment commonly using combined type (convenient for transportation and installation).
        Interfaces for installing fixed jaw plates, bearing seats, and other components will be reserved inside the rack to ensure accurate positioning of each component.
        2. Working mechanism: the core of directly crushing materials
        The working mechanism is the part that comes into direct contact with materials and completes crushing, mainly composed of“ Two boards and one lining; form.
        Fixed jaw plate: a jaw plate fixed on the front wall of the rack, which cannot be moved in position and is broken; Fixed end;.
        Movable jaw plate: Connected to an eccentric shaft through bearings, it can oscillate back and forth and is broken; Event end” The space formed between the two jaw plates is the crushing chamber.
        Wear resistant lining plate: Removable wear-resistant lining plates (mostly made of high manganese steel or wear-resistant alloys) are installed on the surfaces of both fixed and movable jaw plates to avoid wear on the jaw plate body and extend its service life. After wear, they can be replaced separately.
        3. Transmission mechanism: Drive system that provides power
        The transmission mechanism is responsible for converting the power of the motor into the swinging motion of the movable jaw plate, which is the function of the equipment; Dynamic heart;.
        The core components include the motor, pulley, eccentric shaft, and connecting rod.
        The motor drives the pulley to rotate through a V-belt, and the pulley drives the eccentric shaft to rotate; The eccentric design of the eccentric shaft will drive the connecting rod to move up and down, thereby pulling the movable jaw plate to swing periodically towards/away from the fixed jaw plate.
        Some large equipment will add reducers in the transmission path to optimize the speed and ensure stable power output.
        4. Adjustment mechanism: the key to controlling the particle size of finished products
        The regulating mechanism achieves precise control of the particle size of finished materials by changing the width of the discharge port, meeting different downstream demands.
        There are two mainstream adjustment methods:
        Gasket adjustment: Increase or decrease the thickness of the gasket between the frame and the rear thrust plate, directly changing the size of the discharge port. The adjustment range is small but the accuracy is high, suitable for small and medium-sized equipment.
        Wedge adjustment: By adjusting the relative position of the wedge (manually or hydraulically driven), the movable jaw plate is pushed to move, with a large adjustment range and easy operation, widely used for large jaw fractures.
        5. Insurance Institution: Safety Devices for Protecting Equipment
        Insurance institutions are used to deal with situations where unbreakable impurities (such as metal blocks) are mixed into materials to avoid equipment overload damage.
        Traditional designs often use spring safety devices: when the crushing chamber enters a hard object, the spring is compressed and the rear thrust plate breaks (the thrust plate is“ Weak links; Low design strength), interrupt transmission, protect motor and jaw plate.
        The commonly used hydraulic safety device in modern large-scale equipment provides support force through hydraulic cylinders. When overloaded, the hydraulic cylinder unloads pressure, the movable jaw plate retracts, and automatically resets after removing hard objects, without the need to replace parts, resulting in higher efficiency.