Separating Screen Disc Anchoring for Fast Shaft Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing separating conveyor screens face challenges in quickly and reliably fixing the positions of discs, which affects the efficiency and accuracy of material separation based on size and deformability.
Innovation Solution
The discs are equipped with anchoring members that anchor into recesses in the shaft and tensioners to tension the disc body radially, allowing for reliable axial fixation without clamping through the disc body, enabling a lightweight and soft material design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If discs are clamped through the disc body to fix position on shaft, then reliable axial fixation is achieved, but disc body must be rigid and heavy
Solution Approach 1:
The disc assembly is segmented into three independent components: the disc body, the anchoring member that engages with the shaft, and the tensioning member that provides clamping force. This segmentation allows the disc body to be lightweight and soft while the anchoring and tensioning functions are performed by separate metal components.
Solution Approach 2:
The anchoring member acts as an intermediary between the shaft and the disc body, transferring axial loads without requiring the disc body itself to be rigid. The tensioning member serves as a mediator that applies clamping force to secure the disc assembly to the shaft.
2Strength
If disc body is made rigid to transfer clamping force, then secure mounting is achieved, but adjustability and ease of removal is reduced
Solution Approach 1:
The disc assembly transitions from a static rigid structure to a dynamic assembly where the tensioning member can be adjusted to different positions along the shaft, allowing the disc to be mounted, adjusted, and removed easily while maintaining secure clamping when in position.
Solution Approach 2:
By separating the clamping function (tensioning member) from the disc body, the system allows easy adjustment and removal of the entire assembly without deforming or stressing a rigid disc body structure.
3Weight of moving object
If disc body is made soft and lightweight, then ease of adjustment and material flexibility is improved, but force transmission capability deteriorates
Solution Approach 1:
The anchoring member serves as a force-transmitting intermediary between the shaft and the lightweight disc body. It receives the clamping force from the tensioning member and transfers it to the shaft through the recess engagement, eliminating the need for the disc body to transmit these forces.
4Stability of the object's composition
If discs are fixed rigidly to shaft, then positioning stability is achieved, but readjustment time and complexity increases
Solution Approach 1:
The assembly is designed to be dynamically adjustable rather than statically fixed. The tensioning member can be quickly released and repositioned along the shaft to adjust disc spacing, then rapidly secured to provide stable positioning when needed.
Solution Approach 2:
The anchoring member is pre-designed with a recess that matches the shaft geometry, and the tensioning member is pre-configured to apply clamping force. This preliminary preparation allows for rapid assembly and adjustment without complex alignment procedures.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A disc for a separating conveyor screen has a disc body with an opening (24) in an axial direction for receiving a shaft (17). At least one anchoring member (31) of the disc has an anchoring portion (32) projecting into the opening (24) in a radially inward direction and has a positioning portion (33) fitted in a disc body of the disc. The anchoring portion (32) has at least one projection (34) in circumferential sense of the opening (24) for anchoring in at least one recess (35) in an outside surface of the shaft (17). At least one tensioner (37) is provided for tensioning the anchoring member (31) and the disc body radially towards each other. A separating conveyor screen equipped with such discs is also described.