Round Baler Winding Device Pivot Actuator

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Solution Overview

Problem

Round balers with traditional winding devices require significant space and pose handling difficulties due to their large size, making them cumbersome in tight installations and prone to damage when maneuvering off-road.

Innovation Solution

A round baler design where the winding device is equipped with an actuator that allows it to pivot and move from a working position to a transport position, reducing the overall length and increasing ground clearance, thereby improving maneuverability and protection against damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the winding device is arranged behind the bale chamber in a traditional round baler, then the round bale can be wrapped with wrapping material, but the overall length of the round baler increases, making handling difficult and increasing the risk of ground contact damage

Engineering Contradiction:
ImprovehandlingVSAvoidoverall length
Core Design Contradiction:
Ease of operationVSLength of moving object

Solution Approach 1:

The winding device is made movable relative to the pressing device through a pivot connection and actuator mechanism. The winding device can be pivoted between a working position (extended rearward for wrapping) and a transport position (retracted forward), transforming from a static to a dynamic configuration that adapts to different operational requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The round baler is divided into separable functional modules: the pressing device and the winding device are connected through a pivot joint rather than being rigidly fixed. This segmentation allows independent positioning of each module, enabling the winding device to be repositioned without affecting the pressing device's function

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If the winding device is arranged behind the bale chamber, then the wrapping function is achieved, but the ground clearance decreases, increasing the risk of damage when driving off-road

Engineering Contradiction:
Improvedamage protectionVSAvoidground clearance
Core Design Contradiction:
Object-affected harmful factorsVSLength of stationary object

Solution Approach 1:

The winding device's position is dynamically adjustable through pivoting. In off-road transport conditions, the winding device can be rotated forward to a retracted position, increasing the ground clearance at the rear of the baler and preventing ground contact damage, while maintaining full wrapping capability when in the extended working position

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the winding device is made movable with an actuator, then the maneuverability and ground clearance are improved, but the device complexity increases

Engineering Contradiction:
ImprovemaneuverabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A hydraulic or electric actuator is integrated into the pivot connection between the pressing device and winding device. This actuator automatically controls the positioning of the winding device, providing powered movement that reduces manual intervention while managing the complexity through standardized actuator components

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pivot connection serves multiple functions: it acts as both the mechanical linkage for positioning the winding device and the mounting structure for the actuator. The same pivot joint enables both the working position extension and the transport position retraction, consolidating multiple functions into a single mechanical interface

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 enhances handling and reduces the risk of damage by shortening the baler's length and increasing ground clearance, facilitating easier movement and storage while preventing ground contact during off-road use.

Implementation Method 1

the winding device being moved from one working position to a transport position by means of an actuator

Methodology Applied
Scientific EffectHydraulic actuation: Hydraulic Press

Data Source

PatentEP3143868B1Round baling press
Publication Date: 2018.08.15 USINES CLAAS FRANCE SAS
  • EP3143868B1 patent drawingFigure 1~2

AI summary

A round baler (10) for agricultural straw products comprising a pressing device (12) including a pressing chamber (16) for pressing round bales, and a wrapping device (14) downstream of the pressing device (12) for wrapping a round bale with a wrapping material, and a chassis (20) with at least one wheel axle (22), wherein, according to the invention, the wrapping device (14) can be moved from a working position (A) to a transport position (T) by means of an actuator (38).