Gyratory Crusher Spider Assembly With Support Wings and Seating Segments
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Solution Overview
Problem
Current spider assemblies for gyratory crushers, such as ring and bone spiders, face issues with weight, durability, and installation complexity, which affect their ability to withstand crushing forces and require frequent maintenance.
Innovation Solution
A spider assembly with a pair of spider arms having support wings attached to seating segments on the upper rim of the top shell, featuring a beam and receiving channel design that provides secure attachment and reduced weight, enhancing stability and ease of installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ring spider is used, then the spider is durable and easy to align during installation, but the spider is heavy and cumbersome during installation and requires a relatively large number of bolts
Solution Approach 1:
The spider is divided into multiple segments including a central hub, multiple arms (typically three), and support wings. Each arm is a separate component that can be independently manufactured and assembled, reducing the weight handling requirements during installation while maintaining structural integrity through the segmented design
Solution Approach 2:
The spider arms extend radially outward from the central hub in a dimensional arrangement that distributes weight and loading paths. The support wings extend perpendicular to the arms, creating a three-dimensional structure that achieves durability through geometric distribution of forces rather than simply increasing mass
2Reliability
If a ring spider is used, then the spider is durable, but the spider requires a relatively large number of bolts to attach to the top shell
Solution Approach 1:
The continuous outer ring of the traditional ring spider is extracted and replaced with discrete arms that extend from the central hub. This eliminates the need for a complete circular attachment system, reducing the number of bolts required while maintaining the structural durability needed to withstand crushing forces
Solution Approach 2:
The spider is segmented into a central hub and multiple discrete arms, each with support wings. This segmentation allows for fewer, more strategically positioned attachment points compared to a continuous ring, reducing bolt quantity while preserving durability through proper load distribution across the segmented structure
3Weight of moving object
If a bone spider is used, then the overall weight is decreased and the number of bolts is reduced, but the spider is not as robust and stiff and requires special devices and grouting for installation
Solution Approach 1:
The spider arms and support wings are constructed as composite structures combining different material properties or structural configurations. The arms provide primary load-bearing strength while the extended support wings add structural rigidity and stability, achieving robustness without requiring the full weight of a traditional ring spider
Solution Approach 2:
The support wings are pre-positioned and extend outward to provide inherent stability during installation. This preliminary structural arrangement eliminates the need for special installation devices or grouting by providing built-in mechanical stability and alignment features that facilitate straightforward installation
4Length of stationary object
If a bone spider is used, then the feeding height is reduced, but the spider requires special devices and grouting to fix to the upper rim
Solution Approach 1:
The spider is segmented into a compact central hub and radiating arms with support wings, eliminating the need for a tall outer ring structure. This segmentation achieves reduced feeding height while the support wings provide inherent stability that simplifies installation, eliminating the need for grouting or special fixing devices
Data Source
AI summary
A gyratory crusher and spider for use with the gyratory crusher. The spider includes a pair of spider arms extending from a center hub. Each of the spider arms includes a lower end having a pair of support wings extending in opposite directions from the lower end. The upper top shell of the gyratory crusher includes an upper flange having a generally planar top surface. A pair of seating segments are included on the top surface of the upper flange in spaced locations corresponding to the support wings of the spider arms. The seating segments each receive the support wings on the spider arms to provide a mount for the spider on the top shell. The portions of the upper flange not including the seating segments are planar, which reduces the height of the gyratory crusher.