Cutting Assembly Independent Support Elements

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing cutting units experience increased wear and guidance difficulties due to the horizontal deflection of conveyor belts caused by the vertical deflection of suspension arms, which affects the belt's alignment and functionality during uneven ground compensation.

Innovation Solution

Decoupling the functions of carrying the cutter bar and the conveyor device by allowing the support arms and support elements to pivot independently, with the support elements being articulated on a separate pivot axis, reducing horizontal belt deflection and improving guidance through a truss-like design and elastic cross-members for flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the suspension arms are used to carry both the cutter bar and the conveyor belts, then the structure is simplified, but the belt experiences large horizontal deflection and increased wear when the arm deflects vertically to compensate for uneven ground

Engineering Contradiction:

Improvestructure simplificationVSAvoidbelt guidance and wear

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The support function is segmented into two independent systems: support arms carry the cutter bar while separate support elements (carried by the belt itself) support the conveyor belts. This segmentation allows each system to optimize for its specific function, preventing the belt from experiencing large horizontal deflections when the cutter bar needs to adapt to uneven ground.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The support elements act as intermediaries between the belt and the support arms. These support elements are carried by the belt itself and can move independently, serving as a mediator that decouples the motion of the support arms from the belt, thereby reducing wear and improving guidance while maintaining structural connectivity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the pivot axis of the suspension arms is positioned far from the belt, then the cutter bar can compensate for uneven ground, but the belt is pressed horizontally increasing wear and guiding difficulty

Engineering Contradiction:

Improveground adaptationVSAvoidbelt wear and guidance difficulty

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The support elements provide vertical support for the belt independent of the horizontal position of the pivot axis. By carrying the support elements on the belt itself, the system adds a vertical dimension of support that decouples belt guidance from horizontal arm deflection, allowing the pivot axis to be positioned optimally for ground adaptation without compromising belt guidance.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the belt is guided around cylinders or rollers running transversely to the pivot axis, then the belt can be driven and guided, but vertical deflection of support arms changes the belt position making guidance more difficult

Engineering Contradiction:

Improvebelt driving and guidingVSAvoidbelt guidance system

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The support elements are designed to move dynamically with the belt and can pivot independently on their own axes. This dynamic capability allows the support elements to maintain proper belt guidance even when the support arms deflect vertically, eliminating the need for complex fixed guidance systems that would struggle to accommodate the changing geometry.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The support elements combine multiple functions: they support the belt vertically, allow horizontal movement with arm deflection, and provide guidance for the belt. By merging these functions into a single integrated component that is carried by the belt itself, the system achieves effective guidance without the complexity of multiple separate guidance mechanisms.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP2422606B1Cutting assembly

Publication Date: 2014.09.10 CLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH

Figure 1
Figure 2
Figure 3

AI summary

The present invention relates to a cutting unit (1) with a central section (3) arranged on a base frame (2) and at least two side sections (4) arranged adjacent to the central section (3), which comprise a flexible cutter bar (6) and at least one conveying device (7) arranged behind the cutter bar (6), the conveying device being designed on the respective side sections (4) as at least one endless belt (7) arranged adjacent to the central section (3) to transport crop material cut by the cutter bar (6) parallel to the longitudinal axis of the cutting unit (1) in the direction of the central section (3), wherein the side sections (4) have a plurality of support arms (12) pivotably arranged on the base frame (2), wherein the support arms (12) of the respective side section (4) support the cutter bar (6) and that at least one support element (13) is provided which supports the at least one belt (7),so that they can be moved independently of each other.