Belt Hold-Down Device with Movable Support Rail
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Solution Overview
Problem
Existing belt conveyor hold-down devices require high assembly and disassembly efforts when changing conveyor belts, with internal rollers being difficult to access, leading to increased time and effort during maintenance.
Innovation Solution
A belt hold-down device with a mounting rail connected to a mounting element, allowing relative displacement, where first and second holding elements can be moved and fixed at a predetermined clear distance, enabling easy opening and closing for assembly and disassembly, and featuring rotatable rollers and adjustable bearing plates for optimized contact surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hold-down devices with separate roller mounting are used, then the belt can be securely held, but the assembly and disassembly effort increases significantly when changing conveyor belts
Solution Approach 1:
The patent combines multiple separate roller mounting operations into a single integrated mechanism. The support rail with elongated holes and the mounting element with through-holes work together to allow simultaneous positioning and securing of multiple rollers, reducing assembly steps while maintaining secure belt holding through the distributed roller arrangement.
Solution Approach 2:
The mounting element is pre-configured with through-holes and positioning features that allow rollers to be quickly installed and secured in predetermined positions. The elongated holes in the support rail enable pre-positioning of rollers before final securing, facilitating rapid assembly when changing conveyor belts without requiring complex alignment procedures.
2Ease of manufacture
If internal rollers are mounted in separate parts with detachable connections, then assembly is possible, but the disassembly effort remains high when changing belts
Solution Approach 1:
The patent segments the hold-down device into modular components: the mounting element, support rail, and individual rollers. This segmentation allows each component to be independently manufactured and assembled, while the standardized connection interfaces enable quick disassembly for belt changes. The elongated holes provide segmented positioning that maintains manufacturing flexibility while enabling rapid reconfiguration.
Solution Approach 2:
The support rail is designed to be movable relative to the mounting element along the elongated holes, providing dynamic adjustment capability. This movable connection allows the support rail to be easily repositioned and reconfigured when changing belts, transforming a static rigid connection into a dynamic adjustable one that facilitates both manufacturing and maintenance operations.
3Stability of the object's composition
If guide rollers are fixed in position, then the structure is stable, but access to internal rollers becomes difficult when changing belts
Solution Approach 1:
The support rail is designed with movable connection to the mounting element through elongated holes, allowing it to be dynamically repositioned. This provides operational accessibility to internal rollers when needed for belt changes, while maintaining structural stability during operation through the secured position of the support rail relative to the mounting element.
Solution Approach 2:
The elongated holes in the support rail act as intermediaries between the mounting element and the rollers. These intermediary features allow for easy access and adjustment of internal rollers by providing a movable connection mechanism that facilitates maintenance operations without compromising the overall structural integrity of the hold-down device.
4Device complexity
If holding elements are positioned close together, then the device is compact, but assembly and disassembly becomes more difficult
Solution Approach 1:
The mounting element is pre-configured with through-holes and positioning features that allow rollers to be quickly installed and secured in predetermined positions. The elongated holes in the support rail enable pre-positioning of rollers before final securing, facilitating rapid assembly even when holding elements are positioned close together, as alignment is guided by the pre-configured holes rather than requiring precise manual positioning.
Data Source
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AI summary
The invention relates to a belt hold-down device (10) for a belt conveyor (60), wherein at least two pairs of retaining elements (16, 18) are arranged one behind the other on a longitudinally extended mounting element (12) in the direction of its longitudinal extension, wherein each pair of retaining elements (16, 18) has a first (20) and a second retaining element (26), wherein the first retaining element (20) is located closer to a first end face (48) of the mounting element (12) than the second retaining element (26) of a pair of retaining elements (16, 18), and wherein the first (20) and second retaining element (26) of a pair of retaining elements (16, 18) have a predetermined clear distance (41) from each other in a closed position. Furthermore, a longitudinally extended support rail (14) is connected to the mounting element (12) such that its imaginary axes of longitudinal extension are parallel to each other.Furthermore, the support rail (14) is displaceable relative to the mounting element (12) in the direction of its longitudinal extension as required, and the first retaining elements (20) are connected to the support rail (14). The second retaining elements (26) are connected to the mounting element (12), and the support rail (14) can be fixed to the mounting element (12) at at least one predetermined position by means of first connecting means, so that the first (20) and second retaining elements (26) can be fixed at least with the predetermined clear distance (41) from each other. The invention also relates to a belt conveyor (60) in which the belt hold-down devices (10) according to the invention are used.