VSI Crusher Anvil Assembly Segmentation Design
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Solution Overview
Problem
Anvil-type rock crushers experience significant wear and require frequent replacement, leading to high operational costs and scrap loss due to the need for replacing multiple components, including the mounting stob, neck, and side anvil, which are expensive and wasteful.
Innovation Solution
The anvil assembly features a sturdy tapered anchor plate with a wedge shape and T-shaped foot for secure anchoring, allowing anvils to be easily rotated and reused, reducing the need for additional replacement parts and minimizing scrap, with a design that incorporates docking ports instead of a rear-extending mounting stob and neck, thus reducing material waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional anvils with mounting stob and neck are used, then the anvil can be securely mounted to the anvil ring, but the mounting stob and neck must be discarded with the anvil body when the anvil is worn, resulting in high scrap loss and disposal expense
Solution Approach 1:
The anvil assembly is divided into separate components: a reusable anvil holder (mounting stob and neck) and a replaceable anvil body. The anvil holder remains on the anvil ring while only the worn anvil body is removed and replaced, allowing the holder to be reused multiple times and significantly reducing scrap loss compared to discarding the entire assembly.
Solution Approach 2:
The invention recovers and reuses the anvil holder (mounting stob and neck) after the anvil body is worn out. Instead of discarding the entire assembly, the holder is retained and a new anvil body is mounted on it, thereby recovering valuable components and reducing material waste and disposal expenses.
2Productivity
If conventional anvils are replaced when worn, then the crusher can continue operating, but the replacement operation is time consuming and expensive due to discarding the entire anvil assembly including mounting stob and neck
Solution Approach 1:
By segmenting the anvil assembly into a permanent holder and a replaceable body, the replacement process only involves swapping the worn body rather than the entire assembly. This reduces replacement time and allows the crusher to return to service more quickly, improving operational continuity.
Solution Approach 2:
The reusable anvil holder is recovered and retained after anvil body replacement, reducing the frequency and cost of replacements. This decreases downtime and replacement expenses while maintaining continuous crusher operation.
3Reliability
If conventional anvils with extended mounting stob and neck are manufactured, then the anvil can be mounted to the anvil ring, but the manufacturing cost is higher due to the need to incorporate additional material for the stob and neck
Solution Approach 1:
The manufacturing process is segmented into producing a reusable holder and separate replaceable bodies. The holder is manufactured once and reused, while only the smaller anvil bodies need to be manufactured and replaced, reducing overall material consumption and manufacturing costs while maintaining mounting capability.
Solution Approach 2:
The anvil holder is recovered and reused across multiple anvil body replacements, amortizing its manufacturing cost over many cycles. This significantly reduces the average manufacturing cost per replacement operation compared to manufacturing complete disposable anvil assemblies.
Data Source
AI summary
An anvil assembly for a vertical shaft impact rock crushing machine includes a plurality of anvils and anvil holders, each anvil holder including an anchor plate and a buttress wall, the anchor plate having dual tapered shoulders and the buttress wall extending perpendicularly from one side of the anchor plate. The rear face of each anvil includes dual vertically-mirroring docking ports each having dual, inwardly-oriented, angularly inclined side channels. In a mounted configuration the shoulders of each anchor plate are detachably captured in the side channels of one of the docking ports, thereby supporting each anvil on the anvil holder and securing it to the crushing machine.