Vibrating Device Pump Segmentation for Lubricant Cooling
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Solution Overview
Problem
Conventional vibrating devices used in construction machines experience high wear and maintenance costs due to overheating and complex oil change processes, with lubricant circulation linked to device operation and requiring extensive hose connections.
Innovation Solution
A vibrating device with a separate pump line for lubricant circulation and a heat exchanger allows independent lubricant circulation and temperature regulation, decoupling lubricant circulation from device operation, and integrating the pump on the pulling yoke to reduce vibration exposure, enabling preheating and efficient cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pump is driven by a shaft of the vibrating device, then the gear oil can be circulated during operation, but the lubricant circulation is linked to device operation and cannot preheat the device or avoid cold start wear
Solution Approach 1:
The pump is segmented from the exciter cell and mounted on the pulling yoke instead of being driven by the exciter cell shaft. This separation allows the pump to be driven independently through a separate pressure line, enabling lubricant circulation to occur independently of the vibrating device operation, thus resolving the contradiction between reliability improvement and operational independence.
Solution Approach 2:
The pump serves multiple functions: it circulates lubricant during device operation and also enables preheating of the lubricant and device before operation begins. By being driven independently rather than by the exciter cell shaft, the pump becomes a universal component that supports both operational lubrication and preheating functions, resolving the contradiction between extending service life and enabling independent lubricant circulation.
2Device complexity
If the pump is mounted directly on the exciter cell, then the lubricant circulation is integrated, but the pump is exposed to vibrations which increases wear and reduces service life
Solution Approach 1:
The pump is extracted from the exciter cell and mounted on the pulling yoke instead. This removal places the pump in a location that is not directly exposed to the intense vibrations generated by the exciter cell, thereby reducing vibration-induced wear and extending pump service life while maintaining integration within the overall vibrating device structure.
3Adaptability or versatility
If hose connections are used for lubricant circulation between vibrating device and power pack, then the device can be operated separately, but hose lengths up to 80 meters are required and oil change becomes complex
Solution Approach 1:
The pump is merged with the vibrating device by mounting it on the pulling yoke, and the lubricant circuit is combined into a single integrated system within the vibrating device rather than being distributed between the power pack and vibrating device via hoses. This eliminates the need for long hose connections and simplifies oil change procedures while maintaining the ability to operate the vibrating device separately from the power pack.
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
This design extends the service life of the vibrating device by preventing overheating, reducing lubricant requirements, minimizing hose infrastructure, and ensuring consistent lubricant quality, while allowing continuous lubricant circulation and cooling even when the device is not in operation.
Implementation Method 1
a pump (5) for conveying lubricant between the connection (3) for a lubricant outlet and the connection (4) for a lubricant supply
Implementation Method 2
a heat exchanger (7) for regulating the temperature of the lubricant
Data Source
Figure 1
AI summary
The application relates to a vibrating device (1) for attachment to a construction machine, in particular a mast of a construction machine, comprising an exciter cell (2) for generating a vibrating motion, a connection (3) for a drain of lubricant from the exciter cell (2), a connection (4) for a supply of lubricant to the exciter cell (2) and a pump (5) for conveying lubricant between the connection (3) for a drain and the connection (4) for a supply of lubricant, wherein the pump (5) can be driven via a separate line (9), preferably a pressure line.