Mower Cutting Tool Non-Detachable Mounting Bolt Safety
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Solution Overview
Problem
Existing mower assemblies for mowing or chopping machines face safety issues due to unintentional detachment of cutting tools from the tool carrier during operation, which can lead to unsafe operation when worn components are reused.
Innovation Solution
A non-detachable mounting system for the cutting tool and mounting bolt is implemented, using a multi-part bolt design with sleeve components connected by a core pin or bolt, and projections in the elongated hole to prevent rotation and secure the cutting tool against ejection, allowing for tool-free mounting and removal without constraining means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a mounting bolt with constriction is used to detachably mount cutting tools to the tool carrier, then the cutting tool can be removed and replaced, but the mounting bolt may unintentionally detach during operation when worn
Solution Approach 1:
The mounting system is divided into two separate components: the mounting bolt remains permanently attached to the cutting tool, while the tool carrier provides a separate mounting location. This segmentation ensures that the cutting tool and mounting bolt are replaced together as a unit, preventing the reliability issue of worn bolts being reused with new tools.
Solution Approach 2:
The mounting bolt is designed as a consumable component that is non-detachably mounted to the cutting tool. When the cutting tool wears out, the mounting bolt is discarded along with it rather than being reused. This approach prioritizes safety and reliability over the potential reuse of the bolt, treating it as a short-living component.
2Ease of operation
If the mounting bolt is detachably mounted to the cutting tool, then it can be separated for replacement, but this allows worn components to be reused which compromises safety
Solution Approach 1:
Instead of making the mounting bolt detachable from the cutting tool to allow separation, the invention inverts the approach by making the mounting bolt non-detachably mounted to the cutting tool. This ensures that the bolt and tool are always together, eliminating the risk of the bolt being separated and reused with a different tool, thus preventing unintentional detachment during operation.
3Reliability
If a non-detachable mounting system is used, then operational safety is improved, but the complexity of the mounting system increases
Solution Approach 1:
The mounting bolt and cutting tool are merged into a single functional unit through non-detachable mounting. This combining simplifies the overall system by eliminating the need for separate detachable connections, while still achieving the reliability goal of preventing unintentional detachment during operation.
Data Source
AI summary
The disclosure relates to an assembly for a mower of a mowing or chopping machine, which comprises a tool carrier, which is formed with a carrier disk and which is configured to be mounted rotatably about an axis of rotation to a mower of a mowing or chopping machine; and cutting tools, which are each formed with a cutting blade located radially outwardly to the axis of rotation and a holding section located radially inwardly to the axis of rotation and which are detachably mounted to the carrier disk in an assigned carrier section, wherein the cutting tools are each mounted to the tool carrier by a mounting bolt, wherein the mounting bolt is in each case mounted to the cutting tools in a non-detachable manner. The disclosure furthermore relates to a replacement cutting tool and a mower for a mowing or chopping machine.