Baler Conveyor Guide and Cutting Arrangement Repositioning
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Solution Overview
Problem
Existing crop gathering arrangements in balers do not facilitate simple maintenance and efficient jam removal, as they lack a comprehensive solution for repositioning the cutting arrangement and guide surface to prevent or resolve jams while ensuring knife accessibility.
Innovation Solution
A crop gathering assembly with a positioning arrangement that allows the guide surface and cutting arrangement to be lowered and repositioned laterally, using rails or steering arms, enabling the cutting arrangement to be safely moved away from the rotor for maintenance and jam clearance, while also varying the conveying channel's cross-section to prevent jams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the cutting arrangement is fixed in position, then the structure is simple and stable, but maintenance access and jam removal become difficult
Solution Approach 1:
The cutting arrangement is made dynamically repositionable through a positioning arrangement that allows it to move between an operating position (aligned with the conveying channel) and a maintenance position (retracted away from the conveying channel). This dynamic capability enables easy knife maintenance while maintaining structural simplicity during operation.
Solution Approach 2:
The cutting arrangement is segmented from the fixed structure, allowing it to be independently repositioned relative to the conveying channel. The positioning arrangement acts as a separate mechanism that decouples the cutting arrangement from the main structure, enabling maintenance access without affecting the entire system.
2Productivity
If the conveying channel cross-section is reduced, then crop flow is efficient, but jam removal becomes difficult
Solution Approach 1:
The conveying channel cross-section is made dynamically adjustable through the repositioning of the cutting arrangement. During operation, the cutting arrangement is in the operating position, maintaining an efficient narrow cross-section for crop flow. During jam removal, the cutting arrangement is retracted, dynamically increasing the cross-section to facilitate easy clearance of blocked material.
3Ease of repair
If the cutting arrangement is repositioned alone, then knife maintenance is easy, but the guide surface remains constrained
Solution Approach 1:
The positioning arrangement is designed to reposition both the cutting arrangement and the guide surface together as a combined assembly. This merging of movement ensures that the guide surface follows the cutting arrangement during repositioning, maintaining proper alignment and geometric relationships while enabling easy maintenance access to the knives.
Data Source
AI summary
A conveyor assembly is provided on a baler between a crop take-up arrangement and a baling chamber. The conveyor assembly includes a guide member assembly having an upwardly facing guide surface defining a lower limit of a crop conveying channel having an upper limit defined by an undershot rotor positioned above the guide surface. The conveyor assembly further includes a cutting arrangement mounted to a lower side of the guide member and having knives located for projecting through slots provided in the guide member. The cutting arrangement can be lowered together with the guide member, as well as shifted transverse to the forward operating direction relative to the guide member. In this way jams can be avoided or removed, and the cutting arrangement can be brought into a position accessible for purposes of maintenance, as well.