Distributor Comb Sliding Mechanism for Manure Spreaders

Solution Overview

Problem

Liquid manure spreading vehicles face challenges in maintaining mechanical stability and efficient working width adjustment due to high torsional forces on swivel joints, leading to uneven application and contamination, especially for large working widths.

Innovation Solution

A distribution device with a push-pull mechanism replaces the swivel joint, allowing the distributor comb to move between extended and drawn positions, with adjustable working width and height, and a distributor head attached to reduce bending loads and improve outflow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a swivel joint is used to enable the distributor comb to pivot for working width adjustment, then the device achieves adaptability for different working widths, but the high torsional forces on the swivel joint reduce mechanical stability and increase device complexity

Engineering Contradiction:

Improveworking width adjustmentVSAvoidmechanical stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The distributor comb is divided into multiple segments that can be independently adjusted relative to each other. Instead of using a single swivel joint for the entire comb, the comb is segmented into sections that can be positioned independently, distributing the mechanical loads and eliminating the need for high-stress swivel joints while maintaining working width adaptability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The distributor comb is designed with movable segments that can be dynamically adjusted to different positions along the cantilever arm. This dynamic configuration allows the comb to adapt to different working widths without requiring a swivel joint, as the segments slide or pivot on fixed axes rather than rotating around a central swivel point

Inventive Principle:

Principle #15Dynamics

2Productivity

If the distributor comb is extended to cover large working widths, then the productivity and coverage area are improved, but the mechanical stability and resistance to torsional forces deteriorate

Engineering Contradiction:

Improveworking width coverageVSAvoidmechanical stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The distributor comb is divided into multiple segments that can be independently adjusted relative to each other. Instead of using a single swivel joint for the entire comb, the comb is segmented into sections that can be positioned independently, distributing the mechanical loads and eliminating the need for high-stress swivel joints while maintaining working width adaptability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The adjustment mechanism transitions from a single-plane swivel rotation to a multi-dimensional arrangement where segments can be positioned along the length of the cantilever arm and adjusted independently. This dimensional change allows the comb to achieve large working width coverage while maintaining structural integrity through distributed support points

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If a swivel joint with vertical swivel axis is used for the distributor comb, then the device achieves versatility for position adjustment, but the material and manufacturing costs increase disproportionately

Engineering Contradiction:

Improveposition adjustment capabilityVSAvoidmaterial and manufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The distributor comb is divided into multiple segments that can be independently adjusted relative to each other. Instead of using a single swivel joint for the entire comb, the comb is segmented into sections that can be positioned independently, distributing the mechanical loads and eliminating the need for high-stress swivel joints while maintaining working width adaptability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention replaces expensive, complex swivel joints with simpler, more economical adjustment mechanisms. The segmented comb design uses basic mechanical components such as sliding guides, pinned connections, or simple hinges that are significantly cheaper to manufacture and maintain than a heavy-duty vertical swivel joint capable of withstanding the required torsional forces

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP3056074B1Distributor device for a spreader vehicle, in particular a liquid manure spreader vehicle

Publication Date: 2018.03.28 ZUNHAMMER SEBASTIAN

Figure 1

AI summary

The invention relates to a distribution device (1) for a spreading vehicle, in particular a slurry spreading vehicle, with at least one boom arm (2) pivotable about a vertical axis and at least one distribution comb (8) pivotable about a horizontal axis, with a plurality of preferably individually spring-mounted distribution hoses opening into sliding shoes (15), which are fed by a distribution head (9), characterized in that the distribution comb (8) is guided displaceably via a first push-pull device (6) essentially parallel to the boom arm (2).