Comb Tooth Holder With Self-Centering Form Fits
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing comb tooth holders in comminution devices require frequent and time-consuming changes due to wear, leading to high costs and material wastage, especially when switching between different materials for shredding.
Innovation Solution
A comb tooth holder with multiple form fits, including a J-shaped recess and tapering conical surfaces, along with additional transverse support surfaces, allows for quick and precise self-centering and attachment, reducing material usage and wear, and enabling easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comb teeth are made with high material content to ensure durability, then strength and wear resistance are improved, but the cost and time for replacement increase significantly
Solution Approach 1:
The comb tooth assembly is divided into two separable parts: a reusable comb tooth body and replaceable comb teeth. This segmentation allows the durable tooth body to be retained while only the worn teeth are replaced, reducing replacement time and cost.
Solution Approach 2:
The invention enables selective discarding of only the worn comb teeth while recovering and reusing the comb tooth body. This partial recovery approach minimizes material waste and reduces the frequency of complete assembly replacements.
2Ease of operation
If multiple positive locking mechanisms are added to enable quick replacement, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is segmented into multiple independent positive locking points distributed along the comb tooth body. Each locking point operates independently, providing secure attachment without requiring a complex centralized locking system.
Solution Approach 2:
The comb tooth design includes self-centering features through the positive locking mechanisms that automatically align and secure the tooth on the body without requiring external alignment tools or complex adjustment procedures.
3Strength
If comb teeth are designed with high material content, then strength is improved, but the proportion of useful material increases relative to total material used
Solution Approach 1:
The comb tooth assembly separates the structural function (tooth body) from the cutting function (comb teeth). This allows the tooth body to be made of durable material while the actual cutting teeth can be optimized for their specific function with minimal material content.
Solution Approach 2:
The comb teeth are designed with material properties and geometry optimized specifically for cutting, while the tooth body provides structural support. This local optimization ensures that material is concentrated where it is most needed for the cutting function rather than uniformly distributed.
Data Source
Figure 1a~1e
Figure 2a~2e
AI summary
The invention relates to a comb tooth holder, especially for comminution devices having cutting teeth disposed on comminution rolls, said cutting teeth interacting with comb teeth arranged on at least one mating holder or cage for comminuting the material to be comminuted. Said comb tooth holder consists of at least one comb tooth body (1) and at least one comb tooth (2). The comb tooth (2) can be fastened to the comb tooth body (1) by means of a first positively locking portion (3), at least one additional positively locking portion (4, 5) being provided on the comb tooth holder for fastening the comb tooth (2) to the comb tooth body (1). The invention is characterized in that a web surface (33) connecting the two positively locking faces (31, 32) extends in the center of or centrally in the recess (30).