The main parts of a gyratory crusher include:
The gyratory crusher spider assembly is a central component of the top shell that supports the mainshaft and driveshaft in a gyratory crusher. The spider assembly includes the spider arms, spider bushing, spider hub, and various other components.
The spider arms are used to support the primary and secondary crushing surfaces and provide a stable base for the top shell to rest on. The spider bushing is a hollow cylindrical bushing that fits over the mainshaft and provides a bearing surface for the spider assembly to rotate on. The spider hub is the central hub that connects the spider arms to the mainshaft and allows them to rotate together.
The spider assembly also includes various other components, such as the spider cap, spider oil seal, and spider rim liners. The spider cap sits on top of the spider assembly and protects it from wear and damage. The spider oil seal prevents oil leaks from the top shell and helps to keep the spider assembly lubricated. The spider rim liners are used to protect the spider arms and hub from wear caused by material being crushed.
The mainshaft assembly of a gyratory crusher is a key component that supports the mainshaft and provides the rotational motion necessary for crushing rock and other materials. The mainshaft assembly is located inside the crusher, and it is supported by the spider assembly.
The mainshaft assembly typically consists of a mainshaft, a mantle, a spider bushing, a spider cap, and a step washer. The mainshaft is the central component of the assembly and is typically made of forged or cast steel. It is supported by the spider bushing, which is located in the spider cap.
The mantle is a cone-shaped component that fits over the mainshaft and is held in place by a series of keys and pins. The mantle is typically made of manganese steel and is designed to withstand the wear and tear of crushing rock and other materials.
The step washer is a thin metal plate that sits on top of the mainshaft and is used to adjust the position of the mantle relative to the concave or bowl liner.
Overall, the mainshaft assembly is a critical component of a gyratory crusher and plays a key role in ensuring the efficient and reliable operation of the crusher. Proper maintenance and regular inspection of the mainshaft assembly are essential to ensure safe and efficient operation of the crusher.
The bottom shell assembly of a gyratory crusher is a key component that supports the crusher’s mainshaft and provides structural support for the entire crusher. It is located at the bottom of the crusher and is responsible for housing the eccentric and drive assembly, as well as supporting the crushing head and mantle.
The bottom shell assembly typically consists of the lower half of the shell, a mainshaft step, a hydroset cylinder, and a protective skirt. The lower half of the shell is typically made of cast steel and is designed to withstand the forces and stresses of crushing rock and other materials.
The mainshaft step is a small metal plate that sits on top of the lower half of the shell and is used to adjust the position of the mainshaft relative to the crushing head and mantle.
The hydroset cylinder is a hydraulic component that is used to adjust the crusher’s setting and maintain the desired crushing chamber profile.
The protective skirt is a rubber or plastic component that sits around the bottom of the crusher and helps to prevent dust and debris from escaping the crushing chamber.
Overall, the bottom shell assembly is a critical component of a gyratory crusher and plays a key role in ensuring the efficient and reliable operation of the crusher. Proper maintenance and regular inspection of the bottom shell assembly are essential to ensure safe and efficient operation of the crusher.
The eccentric assembly of a gyratory crusher is a key component that provides the gyrating motion of the crushing head and mantle. The eccentric assembly is located at the bottom of the crusher and is supported by the bottom shell assembly.
The eccentric assembly typically consists of an eccentric shaft, a bronze bushing, and a bevel gear. The eccentric shaft is a large steel shaft that is supported by the bottom shell assembly and is driven by the crusher’s motor. The bronze bushing is located inside the eccentric shaft and provides a low-friction surface for the shaft to rotate against.
The bevel gear is a component that is attached to the eccentric shaft and is responsible for driving the crushing head and mantle in a gyrating motion. The bevel gear is typically made of hardened steel and is designed to withstand the stresses and forces of crushing rock and other materials.
Overall, the eccentric assembly is a critical component of a gyratory crusher and plays a key role in ensuring the efficient and reliable operation of the crusher. Proper maintenance and regular inspection of the eccentric assembly are essential to ensure safe and efficient operation of the crusher.
The pinionshaft assembly of a gyratory crusher is a key component that provides the rotational motion necessary for crushing rock and other materials. The pinionshaft assembly is located inside the crusher, and it is supported by the mainshaft assembly.
The pinionshaft assembly typically consists of a pinion shaft, a pinion gear, a bearing, and a keyway. The pinion shaft is a long, thin steel shaft that is supported by the mainshaft assembly and is responsible for transmitting the rotational motion from the crusher’s motor to the crushing head and mantle.
The pinion gear is a small metal gear that is attached to the pinion shaft and meshes with the bevel gear of the eccentric assembly to provide the gyrating motion of the crushing head and mantle.
The bearing is a component that supports the weight of the pinion shaft and allows it to rotate smoothly. The keyway is a small channel that is cut into the pinion shaft and is used to hold the pinion gear in place.
Overall, the pinionshaft assembly is a critical component of a gyratory crusher and plays a key role in ensuring the efficient and reliable operation of the crusher. Proper maintenance and regular inspection of the pinionshaft assembly are essential to ensure safe and efficient operation of the crusher.
Gyratory crusher liners are components of the gyratory crusher, which is a primary crushing machine used in the mining industry. The liners are used to protect the gyratory crusher’s mainframe and other components from wear and damage caused by the materials being crushed.
The gyratory crusher liners are typically made of high manganese steel, which is a wear-resistant material that can withstand the high impact and abrasion of the crushing process. They are designed to be easily replaceable, as they can wear out over time due to the constant friction and impact of the materials being crushed.
The main function of the gyratory crusher liners is to protect the mainframe and other components of the crusher from wear and damage. This helps to prolong the life of the machine and reduce the need for costly repairs and maintenance. Additionally, the liners can also improve the efficiency of the crushing process by reducing the amount of material that is lost due to wear and increasing the overall throughput of the machine.