Segmented Half-Gear Drive for Sectional Door Maintenance
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Solution Overview
Problem
Conventional sectional door driving devices are difficult to repair, disassemble, and replace due to complex construction and the risk of damage from the middle track and electronic mechanism, which occupy upper space and require precise installation.
Innovation Solution
A sectional door driving device comprising a power assembly, chassis assembly, and driving assembly with semicircular half-gears and half-rope wheels that can be easily assembled and disassembled, eliminating the need for a middle track, allowing for easier installation and repair by forming a circular gear and rope wheel system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the middle track and electronic mechanism are located at the upper space of the sectional door, then the door can be driven effectively, but the construction difficulty increases and the structure occupies upper space requiring precise installation
Solution Approach 1:
The circular gear is divided into two half-gears that can be separately assembled and disassembled. This segmentation allows the driving device to be installed and maintained without requiring complex upper space construction, as the half-gears can be easily attached to the shaft and engaged with the output gear without precise middle track installation
2Area of stationary object
If the middle track and electronic mechanism are located at the middle section of the building, then the upper space is freed, but the components are collided and damaged more easily
Solution Approach 1:
By segmenting the gear into two half-gears that attach directly to the shaft, the electronic mechanism can be positioned in the middle section rather than requiring upper space installation. The modular design protects components from collision damage as they can be easily replaced if damaged, and the structure avoids placement in vulnerable upper track positions
3Reliability
If the conventional sectional door structure is used, then the door can operate, but it is difficult to repair, disassemble and replace
Solution Approach 1:
The circular gear is segmented into two half-gears that can be independently removed from the shaft. This allows the driving device to be easily disassembled, repaired, or replaced without complex procedures. The half-gears can be detached by simply removing the engagement assembly, making maintenance accessible and straightforward while maintaining reliable door operation
Solution Approach 2:
The engagement assembly between the half-gears and the shaft is designed to be dynamically removable. The half-gears can be easily attached and detached from the shaft through the engagement structures, allowing the system to transition between fixed operation mode and easy maintenance mode, thereby improving ease of repair while maintaining operational reliability
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
Facilitates easier installation and repair of the sectional door driving device without the need for a middle track, reducing construction complexity and the risk of damage, making the process more accessible and efficient.
Implementation Method 1
a power assembly, a chassis assembly and a driving assembly, and the power assembly includes a motor
Implementation Method 2
the gear set comprises an output gear configured to drive the circular gear and the shaft to rotate
Implementation Method 3
springs 96 are mounted at two ends of the shaft 95. The spring 96 has an end combined with the shaft 95 and other end locked with a board fixed with the building
Implementation Method 4
A rope wheel 97 is disposed at the two ends of the shaft 95, and configured to transmit the rotation force of the shaft 95 to the bottom of the door leaf 91 through a rope or cable
Data Source
AI summary
The present disclosure illustrates a sectional door driving device including a power assembly, a chassis assembly and a driving assembly. The power assembly includes a motor, a gear set and a control unit, and the power assembly is fastened on a main chassis of the chassis assembly. The driving assembly includes two half-gears respectively in semicircular cylinder shape, and each of the two half-gears has a combination surface which is formed with an engagement assembly, and the two half-gears are engaged by the engagement assemblies thereof to form a circular gear to cover a shaft of a sectional door mechanism. The gear set includes an output gear configured to drive the circular gear and the shaft to rotate. The sectional door driving device can be separated from the shaft easily for repair, and the sectional door driving device can also be installed on the existing sectional door easily.