Triangular Tiller Jump Arm Mount for Disc Alignment

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Solution Overview

Problem

Current tilling machines face difficulties in maintaining disc alignment and orientation, especially in challenging soil conditions, leading to inefficiencies and the need for time-consuming adjustments or replacements.

Innovation Solution

A tilling machine equipped with a jump arm assembly and variable angle disc hub assembly that includes a disc hub with a threaded shaft for secure disc mounting, a bearing for stability, and a seal to prevent soil entry, along with jump arm spacers to maintain lateral spacing and absorb shock, allowing for improved disc alignment and easy adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional multi-bolt disc mounting is used, then disc security is improved, but disc replacement time increases

Engineering Contradiction:

Improvedisc securityVSAvoiddisc replacement time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The mounting mechanism is segmented into a quick-release latch system that independently secures the disc at multiple points simultaneously, rather than requiring sequential tightening of multiple bolts. This allows the disc to be securely mounted while enabling rapid removal by actuating the latch mechanism.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting system transitions from a static multi-bolt configuration to a dynamic quick-release mechanism that can rapidly transition between locked and unlocked states. The latch system provides secure mounting during operation but allows immediate disc removal when activated, resolving the contradiction between security and replacement speed.

Inventive Principle:

Principle #15Dynamics

2Stability of the object's composition

If rigid disc mounting is used, then disc alignment stability is improved, but damage from rocky soil increases

Engineering Contradiction:

Improvedisc alignment stabilityVSAvoiddisc damage from rocks

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The mounting system incorporates shock-absorbing elements and flexible mounting arms that are pre-configured to cushion impacts from rocky soil. These elements absorb the shock of rock encounters before the force can damage the disc or its mounting, while maintaining disc alignment stability during normal operation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The mounting system allows for parameter changes in stiffness and flexibility based on operating conditions. The mounting arms can flex within controlled limits to absorb rock impacts, while the quick-release latch maintains secure engagement. This enables the system to adapt between rigid alignment maintenance and flexible impact absorption.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If multiple bolts are used to secure discs, then disc attachment reliability is improved, but operational complexity increases

Engineering Contradiction:

Improvedisc attachment reliabilityVSAvoidmounting mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Multiple fastening functions are merged into a single quick-release latch mechanism. Instead of requiring separate bolts and nuts for each mounting point, the latch system combines multiple securing actions into one operational element, reducing the number of components and simplifying the mounting procedure while maintaining attachment reliability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The quick-release latch mechanism performs multiple functions simultaneously: it secures the disc at multiple points, provides shock absorption, and enables rapid release. This multi-functional design reduces overall system complexity compared to traditional multi-bolt systems that require separate components for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution ensures consistent disc alignment and orientation, reducing operational disruptions and facilitating faster adjustments, thereby enhancing tilling efficiency and reducing the risk of disc damage in rocky soils.

Implementation Method 1

The shaft includes a first axial shaft section and a second axial shaft section, with the first axial shaft section rotatably supported within the hub housing by a bearing

Methodology Applied

Scientific EffectBall bearing: Ball Bearing

Implementation Method 2

The second axial shaft section is at least partially threaded (e.g., by defining male threads) to receive a threaded nut (e.g., a single threaded nut) for securing the tilling disc to the disc hub assembly

Methodology Applied

Scientific EffectThreaded fastening: Screw

Data Source

PatentUS11317552B2Triangular tiller jump arm mount

Publication Date: 2022.05.03 CNH INDUSTRIAL AMERICA LLC

AI summary

A jump arm apparatus for a tilling machine includes a jump arm frame unit having a triangular transverse cross-section and a plurality of jump arms assemblies coupled to the jump arm frame unit. Each jump arm unit includes a jump arm having first and second ends, with the first end coupled to be coupled to the jump arm frame unit via a clamp unit and the second end configured to be coupled to a tilling disc.