V-belt Stabilizing Means for Vibrating Plate Drive
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Solution Overview
Problem
Vibrating plates with belt drives experience reduced service life due to fluctuating center distances and jerky tensile loads, leading to high abrasive wear and potential belt tears, resulting in increased operational costs.
Innovation Solution
Incorporating a limiting device arranged laterally next to the belt's outer or inner surface, with a contact area that prevents excessive deflection and damage from vibrations and whiplash movements, ensuring smooth belt operation and extended service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a V-belt is used in a vibrating plate with fluctuating center distance, then the belt drive can accommodate the relative mobility between upper and lower masses, but the belt experiences high abrasive wear and significantly reduced service life
Solution Approach 1:
The patent introduces a compensating mechanism that actively adjusts the center distance between drive pulley and driven pulley to maintain optimal belt tension despite vibrations. This dynamic parameter adjustment prevents the belt from experiencing excessive wear while still accommodating the relative mobility between upper and lower masses.
Solution Approach 2:
The patent employs a tensioning device as an intermediary element between the belt and the pulleys. This device absorbs the harmful effects of center distance fluctuations and maintains stable belt tension, thereby extending belt service life while preserving the necessary adaptability of the drive system.
2Power
If the driven pulley is coupled directly to the vibration exciter device, then torque transmission is efficient, but the belt experiences whip-like movements and curvatures causing tearing
Solution Approach 1:
The patent incorporates a damping element or buffer mechanism in the belt drive system that cushions the whip-like movements before they can cause damage to the belt. This protective measure is built into the system design to prevent belt tearing while maintaining efficient torque transmission to the vibration exciter device.
3Ease of manufacture
If the belt is designed for constant center distance, then the belt structure is simple and cost-effective, but it cannot withstand the fluctuating loads in vibration plate operation
Solution Approach 1:
The patent transforms the static belt drive system into a dynamic one by introducing adjustable tensioning mechanisms that adapt to the fluctuating operating conditions. This allows the use of simple, cost-effective belt designs while enabling them to withstand variable loads through active tension management.
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 limiting device significantly improves belt stability and torque transmission, extending the service life of the belt and reducing operational delays and costs by minimizing damage from vibrations and whiplash movements.
Implementation Method 1
an overload protection device in the form of at least one spring element which resiliently supports the lower mass relative to the upper mass
Implementation Method 2
a V-belt which runs between a drive pulley driven by the drive motor and a driven pulley coupled to one of the imbalance shafts
Data Source
Figure 1
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AI summary
A vibrating plate for ground compacting has an upper mass (O) with a drive motor (7) and a lower mass (U) with a ground contact plate (1) and with a vibration generator device (2, 3, 4). The drive motor (7) drives a driving pulley (8) in rotation, such that the rotational movement is transmitted via a belt (9) to a driven pulley (10) coupled to the vibration generator device. A limitation device (B1, B2, B3, B4, B5, B6) is provided which is arranged laterally on the belt (9) in a region in which the belt (9) is not in contact with the driving pulley (8) or the driven pulley (10). The limitation device has a contact region on a side facing towards the outer surface and/or inner surface of the belt (9).