Shoe Roll End Module Ferrule Indexing Mechanism
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Solution Overview
Problem
Eccentric shoe press rolls with complex and expensive roll end pieces require slow and labor-intensive assembly due to the need for adjusting belt tension and elongation, leading to longer water removal times compared to concentric structures.
Innovation Solution
A shoe roll end module with a ferrule-supported roll head that is axially movable and equipped with radially arranged indexing means, such as rod-like structures with nut, head, and scale components, allowing for precise and smooth adjustment of belt tension and position, including hydraulic and spring mechanisms for easy operation and accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate roll head and pedestal structures are used with complex adjustment mechanisms, then belt tension and elongation can be adjusted, but the assembly becomes slow and requires extensive fitting work
Solution Approach 1:
The invention divides the roll end into separate functional modules: a pedestal with indexing means, a roll head with belt support, and a ferrule connecting them. This segmentation allows each component to be manufactured and adjusted independently, then quickly assembled together without extensive fitting work, resolving the contradiction between adjustment capability and assembly speed.
Solution Approach 2:
The roll head is designed to be axially movable relative to the pedestal through the indexing mechanism, allowing dynamic adjustment of belt tension and elongation. The indexing means with multiple positions enables the roll head to be quickly set at different axial locations, providing adaptability without complex adjustment procedures during assembly.
2Ease of operation
If indexing means are provided to control roll head movement, then belt tension adjustment is facilitated, but jamming of indexing means may occur
Solution Approach 1:
The indexing means are extracted from the traditional enclosed roll end structure and positioned externally on the pedestal. This external positioning allows the indexing rods to move freely in guide bores without interference from internal components, eliminating jamming issues while maintaining ease of operation for roll head position adjustment.
Solution Approach 2:
The ferrule acts as an intermediary component between the pedestal and roll head, providing a smooth bearing surface that guides the roll head's axial movement. This intermediary structure reduces friction and prevents jamming of the indexing mechanism while facilitating smooth position adjustment.
3Ease of manufacture
If the ferrule inner diameter exceeds the axle diameter for single-lifting assembly, then assembly is simplified, but the ferrule structure becomes more complex
Solution Approach 1:
The ferrule combines multiple functions into a single component: it supports the roll head axially, guides the indexing means movement, and provides a mounting structure that accommodates the axle with clearance for single-lifting assembly. This merging of functions simplifies the overall assembly process while the ferrule's integrated design manages the structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates efficient and accurate adjustment of belt tension and position, reducing wear and eliminating jamming issues, while allowing for easy assembly and reduced manufacturing complexity, enabling faster operation and improved water removal efficiency.
Implementation Method 1
at least one compression spring is accommodated in each accommodation pocket for indexing return movement means
Data Source
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AI summary
A shoe roll end module comprises a pedestal (1), having an axle hole (11) configured to accommodate an axle (3) of a shoe roll and a roll head (7) configured to hold a belt (71). A ferrule (5) is supported on the pedestal (1) and directed to an inner side of the pedestal (1). The roll head (7) is supported on the ferrule (5) in an axially movable manner. Moreover, at least two rod like indexing means (9) are guided through respective bores (15) in the pedestal and arranged with a predetermined distance around the axle hole (11) in an equal angular distance, and being configured to move the roll head (3) towards the pedestal (1).