Baler Additional Drive Reduces Torque for High Density Bales
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Solution Overview
Problem
Existing balers face a dilemma in achieving high bale density while maintaining throughput, as increasing density requires higher torque, which can damage the machine and is costly to implement, forcing operators to compromise between throughput and density.
Innovation Solution
A baler with an additional drive means that engages the compressed bale material to reduce torque in the rotary drive mechanism, allowing for higher density bales without increasing torque or strengthening the gearbox, by using a secondary plunger or additional drive elements that shift the bale material during compression cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the plunger force is increased to achieve higher bale density, then the density of the bales is improved, but the torque in the rotary drive mechanism increases and may damage the machine
Solution Approach 1:
The drive function is segmented between the plunger (for compression) and the additional drive means (for material advancement). This separates the compression function from the advancement function, allowing the plunger to focus on density while the additional drive handles material movement, reducing the torque burden on the plunger.
Solution Approach 2:
The additional drive means acts as an intermediary that assists in advancing the compressed material through the baling chamber. By providing this intermediate drive function, the system reduces the load on the plunger and rotary drive mechanism, enabling higher density bales without exceeding torque limits.
2Productivity
If the quantity of bale material compressed per stroke is increased to improve throughput, then the productivity is improved, but the density of the bales decreases
Solution Approach 1:
The additional drive means performs preliminary action by advancing the compressed material during the compression cycle. This preliminary advancement allows the plunger to maintain higher compression forces over a longer duration, achieving both high throughput and high density by preparing the material position in advance.
Solution Approach 2:
The additional drive means ensures continuous useful action by constantly advancing the compressed material through the baling chamber during successive compression cycles. This continuous advancement maintains optimal compression conditions throughout the cycle, enabling sustained high density production at high throughput.
3Manufacturing precision
If the maximum plunger force is increased to achieve higher compression, then the density is improved, but the mechanical design constraints are exceeded and machine damage may occur
Solution Approach 1:
The compression and advancement functions are segmented into separate drive systems. The plunger handles compression while the additional drive means handles material advancement, distributing the mechanical load across different components and preventing any single component from exceeding its strength limits.
Solution Approach 2:
The additional drive means serves as a mediator that reduces the mechanical burden on the plunger and drive train. By providing auxiliary drive function, it enables high compression levels to be achieved without requiring the plunger or gearbox to exceed their designed strength capacities.
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
Enables the production of high-density bales with high throughput without exceeding the torque limit of the drive train, thus avoiding the need for costly gearbox strengthening and maintaining operational efficiency.
Implementation Method 1
The friction of the compressed material with the walls of the baling chamber channel provides a resistive force allowing for compression of the new material that is introduced into the baling chamber in front of the plunger
Implementation Method 2
compression of the bale material is performed by a reciprocating plunger press baler
Data Source
AI summary
A baler including a baling chamber that includes a bale-forming channel including an inlet end and an outlet end, a plunger mounted within the channel for compressing bale material in the channel and driving the compressed bale material towards the outlet end of the channel, and a rotary drive mechanism for driving reciprocating movement of the plunger, and an additional drive mechanism for driving the compressed bale material towards the outlet end of the channel, thereby reducing torque in the rotary drive mechanism.