Offset Vibration Source in Construction Machine Screen
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Solution Overview
Problem
Construction machines used for pumping and mixing fluid, pasty, and viscous products face mechanical strength issues due to the significant mass of vibrators, which leads to loosening of fixing elements and potential damage from projected particles, necessitating a configuration that separates the vibration source from the screen and enhances mechanical strength.
Innovation Solution
A construction machine design where the vibration source is mounted on the chassis, away from the screen, and connected via a disengageable connector that allows vibratory movement transmission, protecting the source from environmental damage and reinforcing mechanical strength by transferring the vibrator's mass to the frame, while maintaining removability and ease of access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vibrator is mounted directly on the screen, then the vibratory movement is effectively transmitted to the screen, but the fixing elements progressively loosen under the effect of vibrations and the vibrator is exposed to projections of fluid product or solid elements causing damage
Solution Approach 1:
The system is divided into separate components: the vibrator mounted on the frame and the screen as a separate removable element. They are connected through a disengageable connector that allows vibratory movement transmission while enabling independent removal of the screen without the vibrator, protecting the vibrator from direct exposure to projections and fluid product
Solution Approach 2:
A disengageable connector acts as an intermediary element between the vibrator and the screen. This connector transmits the vibratory movement from the vibrator to the screen while allowing the screen to be easily detached and reattached, solving both the protection need and the ease of access requirement
2Strength
If the vibrator is mounted on the screen, then the vibratory movement is transmitted to the screen, but the mechanical strength is reduced due to the significant mass of the vibrator causing loosening of fixing elements
Solution Approach 1:
By separating the vibrator from the screen and mounting the vibrator on the frame, the significant mass of the vibrator is transferred to the stronger frame structure rather than being concentrated on the screen. This segmentation prevents the loosening of fixing elements while maintaining effective vibratory movement transmission through the disengageable connector
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 configuration protects the vibration source from premature degradation, enhances mechanical strength, and facilitates easy access and maintenance by allowing the screen to be removed without tools, reducing noise and energy loss through optimized connector design and shock absorption.
Implementation Method 1
a vibration source, in which the vibration source is mounted on the frame, at a distance from the screen, and in which the vibration source is configured to transmit to the screen, when the screen is in its working position, a vibratory movement
Data Source
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AI summary
Construction machine configured for pumping and/or mixing pasty and/or viscous products such as mortars, concretes, self-leveling screeds, and more generally all fluid products used in the building and construction sector, comprising a frame (10), a receptacle (11) mounted on the frame (10), defining a receiving volume and an inlet opening into the receiving volume, a screen (40) mounted removably or retractably relative to the frame (10), having a working position in which the screen (40) extends over the inlet opening, and a vibrating source (51), wherein the vibrating source (51) is integral with the frame (10), at a distance from the screen (40), and wherein the vibrating source (51) is configured to transmit a vibratory motion to the screen (40) via a disengageable connector (60) when the screen (40) is in its position of work.The disengageable connector (60) is configured to maintain the connection between the vibrating source (51) and the screen (40) under the sole effect of the weight of the screen (40).