Self-Propelled Grain Bagging Machine with Dual Compensated Braking
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Solution Overview
Problem
Existing self-propelled grain bagging machines face challenges in controlling forward movement speed, leading to inadequate grain compacting and saturation issues, and require multiple workers to attach the silo bag due to weight and calibration complexities of independent braking systems.
Innovation Solution
A self-propelled grain bagging machine with a tilting chassis and dual compensated braking system, featuring a primary and secondary hydraulic braking mechanism, and a mobile semitunnel for single-worker operation, allowing for controlled movement and easy bag attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the machine moves forward quickly, then productivity is improved, but grain compacting quality deteriorates
Solution Approach 1:
The braking system is made dynamically adjustable during operation. The operator can modify braking force in real-time based on grain flow conditions, allowing the machine to maintain optimal speed for compacting while adapting to varying productivity requirements. This resolves the contradiction by making speed control flexible rather than fixed.
Solution Approach 2:
The system allows changing the braking parameter (braking force) to control machine speed. By adjusting this parameter, the operator can optimize both compacting quality and productivity depending on operating conditions, transforming a static speed limitation into a dynamic control capability.
2Manufacturing precision
If the machine moves forward slowly, then grain compacting quality is improved, but productivity deteriorates
Solution Approach 1:
The adjustable braking system enables dynamic speed optimization. Rather than being constrained to slow movement for quality, the operator can increase speed when grain flow is sufficient, maintaining both quality and productivity. The system adapts to conditions rather than forcing a compromise.
Solution Approach 2:
The operator uses visual feedback from grain flow into the sleeve to adjust braking force accordingly. When the sleeve fills quickly, braking is reduced to increase productivity; when filling is slow, braking is increased to maintain compacting quality. This feedback loop resolves the contradiction by allowing real-time optimization.
3Ease of operation
If independent braking mechanisms are used on each wheel, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The braking system is segmented into two independent but coordinated mechanisms: a primary braking mechanism for main force application and a secondary braking mechanism for fine adjustment and compensation. This segmentation allows each mechanism to be simpler while collectively providing comprehensive control, resolving the complexity issue while maintaining ease of operation.
Solution Approach 2:
The primary and secondary braking mechanisms are combined to work together on the same wheel shaft. The primary mechanism handles most of the braking force while the secondary mechanism provides adjustment and compensation, merging their functions to achieve both simplicity and control capability.
4Quantity of substance
If the plastic bag is heavy, then grain storage capacity is improved, but ease of operation deteriorates
Solution Approach 1:
The mobile semitunnel acts as an intermediary device between the heavy plastic bag and the operator. It provides mechanical support and positioning assistance, allowing a single worker to attach and position heavy bags safely and easily. The semitunnel mediates the interaction, making the heavy bag manageable despite its large storage capacity.
Solution Approach 2:
The semitunnel serves as a movable support structure that can be repositioned to assist with each new bag attachment. Rather than requiring permanent infrastructure or multiple workers, the semitunnel is a portable aid that replicates the support function wherever needed, enabling single-worker operation with heavy bags.
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 machine achieves controlled forward movement and efficient grain compacting, enabling a single worker to attach the silo bag, ensuring homogeneous silage volume and safe transportation.
Implementation Method 1
the grain flow falling vertically on it to generate such a force that it is broken down in two directions, driving the grain bagging machine forward
Implementation Method 2
breaking down its drop force by means of an inside slant partition wall so that a component of such force is capable of compacting the grain inside the silo while the other component is capable of driving the machine into a gradual forward movement
Implementation Method 3
dual compensated braking device comprising an adjustable primary hydraulic braking mechanism and an adjustable secondary hydraulic braking mechanism
Data Source
AI summary
A self-propelled bagging machine for storing grain in a sleeve (unfolding plastic film pipe or silo bag) made up of an upper receiving hopper which outlet leads to a grain discharge tunnel over which such folded sleeve fits, all of this mounted on a chassis equipped with running gear and dragging pole, where such hopper outlet comprises a wall that is transversally connected to the hopper according to a downward slant plane leading to the discharge tunnel arranged under the vertical projection of the mouth of said hopper, and where such running gear comprises a back single-shaft running gear that is connected to the wheels, and a smaller front steering running gear; such grain bagging machine further includes: a dual compensated braking device made up of an adjustable primary hydraulic braking mechanism and an adjustable secondary hydraulic braking mechanism which act simultaneously on the back shaft of the bagging machine, and where a mechanic articulation mounted on the chassis in such a way that it is sensitive to pulling variations during the machine operation activates an inverted operation hydraulic pump for reception/release of braking fluid from/to the secondary braking mechanism circuit for braking compensation. Dual compensated braking device to be applied to the self-propelled grain bagging machine described above.