Rotary Table Direct Drive Sealing System Dirt Deflection
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Solution Overview
Problem
The existing container treatment machines with turntable direct drives face maintenance-intensive issues due to wear caused by penetrating dirt, particularly abrasive particles, which accumulate at the sealing rings and shaft, leading to increased maintenance costs.
Innovation Solution
A sealing system with a deflection surface that diverts penetrating dirt away from the contact area of the friction partners, combined with radial and axial sealing lips and a lubricant, reduces wear and tear by preventing dirt accumulation and minimizing friction, allowing for less frequent maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shaft sealing system with sealing rings is used to protect the turntable direct drive from dirt, then the direct drive is protected from contamination, but the sealing rings accumulate abrasive particles leading to increased wear and maintenance requirements
Solution Approach 1:
The patent introduces a deflection surface that redirects the harmful abrasive particles (which would otherwise accumulate and cause wear) away from the sealing contact area. By deflecting the dirt flow, the system converts the harmful accumulation effect into a beneficial cleaning effect, reducing wear on sealing components while maintaining protection from contamination.
Solution Approach 2:
The deflection surface acts as an intermediary element between the dirty environment and the sealing system. It intercepts and redirects abrasive particles before they can reach the sealing rings, thereby protecting the sealing interface without compromising the protective function of the sealing system.
2Object-affected harmful factors
If sealing rings are used to protect the direct drive, then contamination is prevented, but maintenance costs increase due to wear marks on the motor shaft
Solution Approach 1:
The deflection surface transforms the harmful effect of abrasive particles into a beneficial outcome by redirecting them away from the sealing interface. This reduces wear on both the sealing rings and the motor shaft, thereby lowering maintenance requirements and costs while preserving contamination protection.
Solution Approach 2:
The deflection surface performs a preliminary action by deflecting abrasive particles before they can reach and damage the sealing components. This preventive measure reduces wear accumulation over time, thereby extending maintenance intervals and reducing overall maintenance intensity.
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 solution effectively reduces wear on the shaft and sealing lips, leading to lower maintenance requirements and cost savings by preventing dirt accumulation and minimizing friction, thus extending maintenance intervals.
Implementation Method 1
the deflection surface, which is designed to slope radially outwards from the contact area, so that penetrating dirt is discharged to the outside
Implementation Method 2
A lubricant can be introduced between the two friction partners of the sealing system in order to reduce the friction
Data Source
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AI summary
Container treatment machine with at least one container holder comprising a rotary table (2) and a rotary table direct drive (1) for driving the rotary table (2), wherein the rotary table direct drive (1) comprises a motor (3) with a shaft (32) for transmitting the drive force of the motor (3) to the rotary table (2) and a sealing system (4, 5, 6, 7a, 7b, 8a, 8b) with at least two friction partners for sealing the shaft (32), characterized in that the sealing system (4, 5, 6, 7a, 7b, 8a, 8b) comprises a drainage surface for draining penetrating dirt from a contact area (K, K1, K2) of the two friction partners.