Separable Bevel Gearing for Paint Stirring Rack
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Solution Overview
Problem
Current bevel gearing devices for paint stirring racks in the vehicle maintenance industry are complex, costly, and require precise installation, leading to issues with gear engagement, noise, and increased space and transport costs, with existing solutions like outer teeth belts and complex bevel gearing configurations being inefficient and prone to slippage.
Innovation Solution
A separable bevel gearing device with a simple structure featuring a gear bracket, horizontal drive shaft, first and second bevel gears, and a guide slot that allows for easy engagement and disengagement, using plastic bevel gears with anti-attrition substances to reduce friction and noise, and a cylindrical vertical rotational shaft for improved installation and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bevel gearing device is used, then transmission function is achieved, but structure complexity increases and installation precision requirement increases
Solution Approach 1:
The bevel gearing device is divided into separable components: a first bevel gear fixed on the drive shaft and a second bevel gear on the vertical rotational shaft that can be independently engaged and disengaged. This segmentation simplifies the overall structure by eliminating complex connecting configurations like drive plates and forks, while maintaining reliable transmission function when engaged.
Solution Approach 2:
The patent introduces a dynamic engagement mechanism where the second bevel gear can be freely inserted and removed from the guide slot during operation. This dynamic capability allows the gearing system to transition between engaged (transmission active) and disengaged (transmission inactive) states, simplifying structure by removing permanent complex connections while ensuring transmission reliability when needed.
2Reliability
If conventional bevel gearing device is used, then transmission function is achieved, but installation precision requirement increases
Solution Approach 1:
The guide slot acts as an intermediary element that guides the vertical rotational shaft and second bevel gear into proper engagement position with the first bevel gear. This intermediary structure eliminates the need for high-precision manual alignment during installation, as the guide slot automatically ensures correct positioning, thereby reducing installation precision requirements while maintaining reliable transmission.
Solution Approach 2:
The engagement mechanism is designed to be self-aligning through the guide slot geometry. When the vertical rotational shaft is inserted, the guide slot automatically positions the second bevel gear correctly relative to the first bevel gear without requiring external adjustment or high-precision installation skills, thus reducing manufacturing and installation precision requirements.
3Reliability
If complex connecting configuration is used, then transmission function is achieved, but device height increases and space occupation increases
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate components such as drive plates and forks from the transmission system. By directly engaging the two bevel gears through a simplified guide slot mechanism, the overall device height is reduced while maintaining the essential transmission function, thereby reducing space occupation.
4Ease of operation
If outer teeth belt is used, then engagement and disengagement performance is improved, but teeth may drop out and cost increases
Solution Approach 1:
The patent uses a simple guide slot structure instead of expensive outer teeth belts with complex tooth engagement mechanisms. The guide slot provides sufficient engagement and disengagement performance at lower cost, eliminating the risk of teeth dropping out while maintaining ease of operation.
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 solution provides stable, cost-effective, and user-friendly operation with reduced noise and assembly complexity, allowing for smooth engagement and disengagement of bevel gears, decreased height of the stirring rack, and lower transport costs, while maintaining accurate gear alignment and reducing the need for precise installation.
Implementation Method 1
the size of guide slot is designed to slidably receive the vertical rotational shaft
Implementation Method 2
a first bevel gear fixedly mounted on the horizontal drive shaft... a second bevel gear fixedly mounted on its upper end... the second bevel gear is releasably engaged with the first bevel gear
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A bevel gearing device for the stirring rack of tinting machine, comprising a gear bracket (1) fixedly mounted on the stirring rack; a horizontal drive shaft (2) rotationally mounted on the gear bracket (1); a first bevel gear (3) fixedly mounted on the horizontal drive shaft (2) adjacent to a side of gear bracket (1); a vertical rotational shaft (4) with a second bevel gear (5) fixedly mounted on its upper end and a stirring paddle (7) mounted on its lower end, said stirring paddle (7) is placed in a paint bucket; wherein an open guide slot (8) is provided at the bottom of the gear bracket (1), the guide slot (8) includes a first segment (8a) extending perpendicular to the horizontal drive shaft (2) and a second segment (8b) extending towards the first bevel gear (3), an angle between the first and second segment is 180°≥α≥160°, and the size of guide slot is designed to slidably receive the vertical rotational shaft (4), such that the second bevel gear (5) is releasably engaged with the first bevel gear (3), and the rotation direction of the first bevel gear (3) may be selected such that it drives the second bevel gear to rotate inward during the operation of the stirring rack, and at least one of the first and second bevel gears is made of plastic material. This bevel gearing device is not only applicable and connected easily, but also considerably reduces the total height and the cost of the stirring rack.