Sandvik Cone Crusher inner head nut

**Detailed Introduction and Manufacturing Process of the Locking Nut of Cone Crusher** The locking nut of the cone crusher is an important part used to fix the relevant components of the crusher. The following is a detailed introduction and manufacturing process of a common locking nut of the cone crusher: Detailed Introduction: This locking nut includes the locking nut body connected to the main shaft of the cone crusher through the threaded structure. Between the locking nut body and the crushing wall, a cutting ring is connected. Both the cutting ring and the locking nut body are provided with multiple pin holes, and internal threaded cylindrical pins are connected within the pin holes. One end of the pin is connected within the pin hole of the locking nut body, and the other end is connected within the pin hole of the cutting ring. Its function is to firmly fix the crushing wall to the main shaft. When it is necessary to replace the crushing wall, there is no need to cut the entire locking nut. Just cutting off the cutting ring and the internal threaded cylindrical pins can remove the locking nut. Then, using tools to remove the remaining parts of the internal threaded cylindrical pins, and after machining or grinding the mating bottom surface of the locking nut body, it can be reused. This can reduce the replacement time and cost, improve work efficiency, and avoid damage to the locking nut body and the main shaft of the cone crusher. Manufacturing Process (Taking a specific structure as an example): 1. Material Preparation: Select high-strength materials to meet the strength and wear resistance requirements of the locking nut. 2. Machining the Locking Nut Body: Using appropriate machine tools, such as lathes and milling machines, machine the shape and threaded structure of the locking nut body according to the design requirements. 3. Manufacturing the Cutting Ring: Process the cutting ring according to the design size and machine the pin holes at the corresponding positions. 4. Drilling: Drill the holes corresponding to the pin holes of the cutting ring on the locking nut body. 5. Installing the Internal Threaded Cylindrical Pins: Insert one end of the internal threaded cylindrical pin into the pin hole of the locking nut body. The depth should meet the design requirements. For example, the ratio of the embedding depth in the pin hole of the locking nut body to the embedding depth in the pin hole of the cutting ring is 2:1. Then, install the cutting ring onto the locking nut through the internal threaded cylindrical pins. 6. Welding and Fixing: Weld the cutting ring and the locking nut body to enhance the stability of the connection. 7. Surface Treatment: Perform surface treatment on the locking nut, such as grinding and polishing, to improve the surface quality and rust prevention performance. 8. Quality Inspection: Conduct a comprehensive quality inspection on the manufactured locking nut, including the detection of dimensional accuracy, thread fit accuracy, welding quality, etc., to ensure it meets the design and usage requirements. It should be noted that different types of locking nuts of cone crushers may have differences in structure and manufacturing process. The specific situation needs to be determined according to the actual design and production requirements. During the actual manufacturing process, it is also necessary to strictly control the processing quality of each process to ensure the performance and reliability of the locking nut.