Modular Reduction Transmission for Horizontal Grinder Crown Gear
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Solution Overview
Problem
Existing horizontal grinders face limitations in power transmission due to crown gear tooth capacity and have difficult assembly and disassembly processes, particularly with the reduction transmission and output pinion system.
Innovation Solution
The design features output pinions positioned on a pitch circle with axes within a limited angular range, a modular reduction transmission with radial mobility and sealing, and a single drive motor driving multiple pinions through upstream and downstream reduction stages, allowing for easier assembly and disassembly by withdrawing modules as a single block.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a reduction transmission with output pinions is used to drive the crown gear, then power transmission capability is improved, but the structure becomes complex and difficult to assemble/disassemble
Solution Approach 1:
The reduction transmission is divided into modular components: a drive module containing the drive shaft and upstream pinion, upstream wheel modules with toothed wheels, and output pinion modules. Each module can be independently assembled and disassembled, reducing overall structural complexity while maintaining power transmission capability.
Solution Approach 2:
The output pinions are arranged on a pitch circle with their axes positioned within a limited angular range (less than 180°, preferably less than 90°). This spatial arrangement optimizes the three-dimensional layout of the transmission system, reducing congestion and facilitating assembly/disassembly operations.
2Power
If the reduction transmission is designed with multiple components for power distribution, then power transmission is improved, but assembly and disassembly require casing displacement
Solution Approach 1:
The transmission system is segmented into removable modules that can be accessed through openings in the casing. The drive module, upstream wheel modules, and output pinion modules can be independently removed and reinstalled without requiring displacement of the entire casing, significantly improving ease of assembly and disassembly.
Solution Approach 2:
The casing serves as a stationary housing with strategically positioned openings that allow access to internal components. These openings act as intermediaries, enabling module removal and installation without requiring the casing itself to be moved or disassembled.
3Power
If output pinions are arranged to distribute power effectively, then power transmission is improved, but spatial congestion increases
Solution Approach 1:
The output pinions are positioned on a pitch circle with their rotation axes confined to a limited angular range. This three-dimensional arrangement allows effective power distribution across multiple pinions while minimizing the volume occupied by the transmission system, reducing spatial congestion.
Solution Approach 2:
The output pinions are pre-positioned on the pitch circle during module design, optimizing their spatial arrangement before assembly. This preliminary configuration ensures effective power distribution while minimizing the space required for the entire transmission system.
Data Source
AI summary
This grinder is provided with a drive device for a crown gear which comprises a reduction transmission which is provided:with a drive shaft adapted so as to be connected to a motor,with at least one output pinion, said or each output pinion being adapted so as to mesh with the crown gear and to be driven by the drive shaft, andwith a casing.The reduction transmission comprises at least two output pinions.Application to devices for driving horizontal grinders.