Split Transmission Case for Snow-Removing Auger
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Solution Overview
Problem
Auger snow-removing machines face issues with snow adhering to and staying on the transmission case during operation, compromising sealing, workability, and machining accuracy.
Innovation Solution
The transmission case is divided into a split case with a front and rear case member, positioned behind the reverse rotation drive shaft, where the front case member contains the first gear unit and the rear case member contains the second gear unit, reducing the case's forward protrusion and allowing independent machining and assembly, enhancing sealing and workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the case is divided into a split case with front and rear case members positioned before the reverse rotation drive shaft, then the forward protrusion of the case is reduced and snow adhesion is prevented, but the assembly workability deteriorates
Solution Approach 1:
The case is divided into a front case member and a rear case member at a position behind the reverse rotation drive shaft. This segmentation allows the case to have sufficient forward protrusion to prevent snow adhesion while enabling independent machining and assembly of each case member, thereby resolving the contradiction between preventing snow adhesion and maintaining assembly workability.
2Manufacturing precision
If the left and right case members are kept in an assembled state for machining, then machining accuracy of bearing/seal retaining parts is improved, but the workability of the case deteriorates
Solution Approach 1:
The case is segmented into left and right case members that can be machined separately in a divided state. This segmentation improves workability by allowing each case member to be machined independently with standard machining processes, while the subsequent assembly of these precisely machined parts maintains the required machining accuracy for bearing and seal retaining parts.
3Strength
If the case is made as a single integrated piece, then structural strength is improved, but machining accuracy and sealing property deteriorate
Solution Approach 1:
The case is divided into multiple case members (front case member, rear case member, left case member, right case member) that can be machined with high precision independently. The sealing property is maintained through proper sealing designs at the joints between case members. This segmentation approach allows each part to be machined to high accuracy standards while maintaining overall structural strength through proper joint design.
Data Source
AI summary
An auger snow-removing machine includes a forward rotation shaft and a reverse rotation shaft disposed on the same axis and aligned in a width direction of an auger housing within the auger housing, and a transmission disposed inside the auger housing such that the forward rotation shaft and the reverse rotation shaft are rotated concurrently in opposite directions by a driving force transmitted from the transmission. A case of the transmission is divided into a front case member and a rear case member at a position behind a reverse rotation drive shaft extending in the width direction of the auger housing. The front case member has a first gear unit assembled therein, and the rear case member has a second gear unit assembled therein. The first and second gear units are assembled together when the front and rear case members are assembled together.