Screening Bucket Rotor Drum Clamping Mechanism
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Solution Overview
Problem
Existing screening buckets require complex and time-consuming operations for assembly and disassembly of rotors, leading to frequent maintenance needs and inefficiencies in rotor format changes.
Innovation Solution
A screening bucket design where the screening drum can be fitted or removed without disassembling the entire rotor, utilizing a clamp system that allows for easy mounting and dismounting of the drum at the end portions, reducing the need for extensive disassembly and reassembly of the rotor components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotor shaft is pivotally attached to the bucket body with bearings and gears mounted on the shaft, then the rotor can be securely supported and powered, but the assembly and disassembly of the rotor becomes complex and time-consuming
Solution Approach 1:
The rotor assembly is divided into separable components: the rotor shaft with bearings is separated from the screening plates, which are attached directly to the bucket body. This segmentation allows the shaft to be removed independently for servicing while leaving the screening plates in place, significantly simplifying the disassembly process compared to traditional integrated rotor designs.
Solution Approach 2:
The rotor shaft is extracted as a separate removable component from the bucket body. The shaft can be completely removed through slots in the bucket body without removing the screening plates or other components, enabling easy servicing and replacement of the shaft while maintaining the structural integrity of the remaining assembly.
2Power
If the rotor shaft protrudes out of the bucket body to be connected by power transmission means, then the rotor can be driven, but the transmission means are exposed to damage or soiling from contact with material
Solution Approach 1:
The power transmission means are nested within the bucket body structure. The shaft protrudes only enough to engage with the transmission means inside the bucket body, which are protected from direct contact with the screened material. This nested arrangement allows power transmission while protecting the mechanical components from harmful contact with excavated material.
3Ease of repair
If frequent maintenance is necessary to replace damaged or worn parts, then the rotor can be serviced, but the time-consuming disassembly and reassembly operations reduce productivity
Solution Approach 1:
The rotor assembly is segmented into the shaft component and the screening plates component. The shaft can be removed independently through slots in the bucket body without removing the plates, allowing quick servicing of the shaft while maintaining the screening plates. This segmentation dramatically reduces maintenance time compared to traditional integrated rotor designs that require complete disassembly.
Solution Approach 2:
The rotor shaft is designed with preliminary access features - slots in the bucket body that allow the shaft to be removed without complex disassembly operations. This preliminary design of the access mechanism enables rapid maintenance operations by pre-planning the removal path and requiring no complex tools or procedures.
Data Source
AI summary
A bucket for screening, and/or crushing and/or mixing and/or sorting, of an excavating or loading machine, includes a containment body for collecting and containing the material to be treated, and a plurality of working rotors through which the material to be treated passes, configured to rotate about their axis of symmetry, by means of power transmission means. The rotor includes a first and a second end portion mechanically integral with the body of which at least one is operatively connected to the power transmission means and further comprises a screening drum removably connected to the first and second end portions.