Segmented Damping Ring Assembly for Sprocket Noise and Wear
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Solution Overview
Problem
Mobile industrial machines, such as track-type tractors, generate loud noises due to metal-to-metal impact between the drive sprocket and track links, which can also cause wear on the machine.
Innovation Solution
A damping ring assembly for the drive sprocket, comprising damping members with recesses and brackets, is installed to secure the damping members to the sprocket drum, reducing noise and movement, using existing fasteners and a retention device for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a damping ring is installed on the drive sprocket to reduce noise from metal-to-metal impact, then noise reduction is achieved, but the damping ring may be subject to movement after being secured to the sprocket wheel
Solution Approach 1:
The damping ring is divided into multiple damping members (typically three) that are spaced around the sprocket drum. Each damping member is independently secured to the sprocket drum using brackets and fasteners, allowing for more stable attachment while maintaining noise reduction effectiveness across the entire circumferential surface.
Solution Approach 2:
Brackets are pre-positioned on the sprocket drum at specific locations before the damping members are installed. These brackets serve as pre-prepared attachment points that guide and secure the damping members in their correct positions, preventing movement during operation.
2Object-affected harmful factors
If multiple damping members are used to cover the entire outer circumference of the sprocket, then noise reduction effectiveness is improved, but the device complexity increases
Solution Approach 1:
The damping system is segmented into multiple identical damping members arranged around the sprocket. Each member is a simple arc-shaped component with recesses for fastener retention, and each is secured by a separate bracket assembly. This segmentation allows for complete circumferential coverage while keeping each individual component simple and manageable.
Solution Approach 2:
The brackets serve multiple functions: they provide structural support for the damping members, serve as attachment points to the sprocket drum, and help position the damping members correctly. The threaded fasteners also serve dual purposes by both securing the brackets to the drum and the damping members to the brackets.
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
The assembly reduces noise and limits axial, radial, and rotational movement, decreasing wear on the sprocket teeth and improving maintenance costs by absorbing the impact between the sprocket and track links.
Implementation Method 1
The plurality of damping members together form a circumferential shape when installed onto a surface of a drive sprocket... The assembly reduces noise and limits axial, radial, and rotational movement, decreasing wear on the sprocket teeth and improving maintenance costs by absorbing the impact between the sprocket and track links.
Data Source
AI summary
A damping ring assembly may include a plurality of damping members, each of the damping members including an arc length, a radial thickness, a plurality of recesses located on an end surface and a retention groove on an outer surface of the damping members. A damping ring assembly may also include a plurality of brackets for attaching the plurality of damping members to a circumferential surface of a drive sprocket, the plurality of brackets each including a radially inner leg, a radially outer leg, and a joining central portion that connects the radially inner leg and the radially outer leg.