Angular Gear Arrangement for Mower Knives Detachable Support
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Solution Overview
Problem
Existing angular gear arrangements for oscillating mower knives are difficult to mount and service due to predetermined insertion directions and limited access openings in the transmission housing.
Innovation Solution
The angular gear arrangement features detachable support means for the third bearing, allowing components to be inserted from below through a single housing opening, simplifying assembly and service by eliminating the need for predetermined insertion directions and reducing the number of access openings required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the support means are fixed on the transmission housing, then the housing structure is stable and simple, but the assembly and dismantling of the bevel gearing becomes difficult and time-consuming
Solution Approach 1:
The support means are segmented into a detachable portion and a fixed portion. The detachable portion can be removed from the transmission housing to allow access for assembly and dismantling of the bevel gearing, while the fixed portion remains attached to maintain structural stability. This segmentation resolves the contradiction by enabling easy maintenance without requiring complete disassembly of the housing.
Solution Approach 2:
The support means transition from a static fixed state to a dynamic detachable state. During normal operation, the support means are fixed to provide stable support for the third bearing. During maintenance, the detachable portion can be removed to facilitate access to the bevel gearing components, allowing the system to adapt between operational and maintenance modes.
2Ease of operation
If multiple access openings are formed in the housing, then components can be easily accessed for assembly and maintenance, but the housing structure becomes more complex and less compact
Solution Approach 1:
The access function is segmented from the main housing structure through the detachable support means. Instead of creating multiple openings in the housing, the detachable portion of the support means itself becomes the access path, allowing components to be reached through the same housing opening while maintaining housing integrity and compactness.
Solution Approach 2:
The detachable support means serve multiple functions: they provide structural support during operation and serve as an access mechanism during maintenance. This multi-functionality eliminates the need for separate access openings, as the support means themselves enable component access when removed, thereby maintaining housing compactness while ensuring ease of operation.
Data Source
AI summary
An angular gear arrangement for mower knife driven in an oscillating manner, including a transmission housing, an input shaft, which engages in the interior of the transmission housing, a rotor, which is mounted in the transmission housing to be rotatable about a first axis of rotation by a first bearing, a crankshaft, which engages in the receiving space of the rotor through the receiving opening and is mounted in the receiving space, to be rotatable about a second axis of rotation by a second bearing, a driving element, which is non-rotationally connected to the rotor and mounted so as to be rotatable about the first axis of rotation by at least one third bearing, and support means, which are arranged in the transmission housing and on which the third bearing is axially supported, the support means being releasably fastened to the transmission housing.