Curved Hook Rotor Stripper for Agricultural Balers
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Solution Overview
Problem
Conventional rotor strippers for agricultural balers are difficult to install and secure around the rotor shaft, leading to entanglement of crop material with the shaft during the baling process.
Innovation Solution
The rotor stripper is designed to securely engage a rotary shaft with a curved hook section that fits around a majority of the shaft's circumference, featuring a backbone portion for fixation and a mounting boss for easy installation, allowing it to remain stationary while the rotor fingers rotate, preventing crop material entanglement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional rotor stripper design is used, then the device structure is simple, but the installation is difficult and the crop material becomes entangled with the rotor shaft
Solution Approach 1:
The rotor stripper is divided into multiple segments that can be independently assembled around the rotor shaft. Each segment includes a curved hook section that fits around a portion of the shaft, allowing modular installation and secure positioning without complex mounting procedures.
Solution Approach 2:
The rotor stripper features a curved hook section designed to fit around the cylindrical rotor shaft. This curved geometry enables the stripper to wrap around the shaft securely, preventing crop material entanglement while simplifying installation through natural conforming to the shaft shape.
2Reliability
If the rotor stripper is designed to securely engage the rotor shaft, then crop material entanglement is prevented, but the device complexity increases
Solution Approach 1:
The engagement structure is segmented into multiple independent curved hook sections, each capable of independently engaging the rotor shaft. This segmentation provides secure engagement through multiple contact points while keeping each individual segment simple in design.
Solution Approach 2:
The curved hook section is designed to self-align and self-secure around the rotor shaft through its geometry alone, without requiring additional fastening mechanisms or complex mounting procedures. The shape itself provides the securing function.
3Reliability
If the rotor stripper covers a majority of the shaft circumference, then crop material entanglement is prevented, but the device becomes more difficult to install
Solution Approach 1:
The rotor stripper is divided into multiple segments that collectively cover the majority of the shaft circumference. Each segment is sized to fit around a portion of the shaft, and multiple segments are assembled together to provide comprehensive coverage while maintaining ease of installation through modular assembly.
Data Source
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AI summary
Rotor strippers (34) are sized and shaped to securely fit between adjacent rotor fingers (32) on a rotor shaft (36) of a rotor (30) for stripping crop material and for conveying the crop material inside an agricultural machine. Each rotor stripper (34) is formed of a segment comprised of two opposing side walls (46) with an interior section extending between the two opposing side walls. A first end portion (40) has a curved hook section shaped to securely fit around a majority portion of the rotary shaft (36) for secure engagement therewith; a second end portion (42) is secured to a backbone portion (38) of the rotor (30) allowing the segment to remain fixed with respect to rotation of the rotary shaft (36); and a middle portion (44) extends between the first (40) and second (42) end portions in a curved manner.