Pneumatic Vibrator Venting Control for Adjustable Power
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Solution Overview
Problem
Existing vibrators face issues with high air consumption and difficulty in adapting vibration performance to different applications, particularly in concrete construction where power and vibration intensity vary with wall thickness and formwork material.
Innovation Solution
A vibrator design featuring multiple vent openings arranged on a circular line concentric with the axis, controlled by a rotatable control disc, allowing for adjustable air outlet cross-section and power settings, and optionally including silencer elements for noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single large outlet opening is used in the state of the art, then the air outlet cross-section is large, but the vibrator cannot be reliably started in all spatial orientations due to air flow overlaps
Solution Approach 1:
The single large outlet opening is segmented into multiple smaller vent openings arranged on a circular line. This segmentation allows the air outlet function to be distributed across multiple openings, enabling reliable start-up in any spatial orientation since at least one opening will be favorably positioned regardless of the vibrator's orientation.
2Power
If the air outlet cross-section is made large, then high power output is achieved, but air consumption increases
Solution Approach 1:
The air outlet cross-section is made dynamically adjustable through a control disc that can rotate to vary the number of vent openings exposed to the air flow. This allows the system to adapt the air outlet area to the specific operational requirements, achieving high power output when needed while reducing air consumption during lower power operations.
3Adaptability or versatility
If multiple vent openings are used, then adaptability to different applications is improved, but device complexity increases
Solution Approach 1:
The control disc serves multiple functions: it acts as a sealing element, a control mechanism, and an adjustment device. By rotating this single component, the user can control the number of active vent openings, adjust power output, and adapt to different applications without adding complex valve assemblies or multiple separate control mechanisms.
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
Enables adaptable power and vibration control, reducing air consumption and noise, while accommodating varying construction needs with a single device, enhancing performance and efficiency.
Implementation Method 1
an unbalanced rotor (6) arranged around the axis (3), wherein the unbalanced rotor (6) touches the outer circumference of the axis (3) at the location of the valve device (12) with its inner wall
Implementation Method 2
Compressed air is supplied through a bore in the shaft
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
In a vibrator for pneumatic drive with an axle (3) arranged between two housing end flanges (8) and surrounded by a hollow cylindrical unbalanced rotor (6) with a larger inner diameter than the diameter of the axle (3), wherein compressed air is introduced into the space between the axle (3) and the unbalanced rotor (6) by means of a valve assembly at at least one point on the circumference in a direction of rotation of the unbalanced rotor (6) in order to set the unbalanced rotor (6) into a rotary motion rolling on the axle (3), and wherein a vent opening (12) for releasing the compressed air is arranged on the side of the valve assembly facing away from or opposite to the direction of rotation of the unbalanced rotor (6) in at least one housing end flange (8), over at least a partial circumference of the circle on the side facing away from or opposite to the direction of rotation of the unbalanced rotor (6)On the side of the valve assembly oriented opposite to the direction of rotation, a plurality of vent openings (12) are arranged which can be individually closed by means of control means.